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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-161789
PROSPECTUS SUPPLEMENT
(To Prospectus dated September 23, 2009)
 
10,000,000 Shares
 
(AVANIR LOGO)
 
Common Stock
 
 
We are offering 10,000,000 shares of our common stock. Our common stock is quoted on the Nasdaq Global Market under the symbol “AVNR.” The last reported sale price of our common stock on the Nasdaq Global Market on May 5, 2010 was $3.07 per share.
 
Investing in our common stock involves a high degree of risk. Please read “Risk Factors” beginning on page S-3 of this prospectus supplement and in the documents incorporated by reference into this prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
                 
    PER SHARE   TOTAL
 
Public Offering Price
  $ 2.75     $ 27,500,000  
Underwriting Discounts and Commissions
  $ 0.08     $ 800,000  
Proceeds to AVANIR Pharmaceuticals, Inc. (Before Expenses)
  $ 2.67     $ 26,700,000  
 
Delivery of the shares of common stock is expected to be made on or about May 11, 2010. The Company has granted the underwriters an option for a period of 30 days to purchase up to an additional 1,500,000 shares of our common stock to cover over-allotments. If the underwriters exercise the option in full, the total underwriting discounts and commissions payable by us will be $920,000 and the total proceeds to us, before expenses, will be $30,705,000.
 
Sole Book-Running Manager
 
Jefferies & Company
 
Co-Manager
Canaccord Adams
 
Prospectus Supplement dated May 6, 2010.
 


 

 
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ABOUT THIS PROSPECTUS SUPPLEMENT
 
You should assume that the information in this prospectus supplement and the accompanying prospectus is accurate only as of the date on the front of the applicable document and that any information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus supplement or the accompanying prospectus, or any sale of a security.
 
This document is in two parts. The first part is the prospectus supplement, which describes the specific terms of this offering. The second part, the accompanying prospectus, provides more general information about securities we may offer from time to time, some of which may not apply to the securities we are offering. In addition, we incorporate important information into this prospectus supplement and the accompanying prospectus by reference. You may obtain the information incorporated by reference into this prospectus supplement and the accompanying prospectus without charge by following the instructions under “Where You Can Find More Information” in this prospectus supplement. Generally, when we refer to this prospectus, we are referring to both parts of this document combined. We urge you to carefully read this prospectus supplement, the information incorporated by reference and the accompanying prospectus before buying any of the securities being offered under this prospectus supplement. This prospectus supplement may add, update or change information contained in the accompanying prospectus. To the extent that any statement that we make in this prospectus supplement is inconsistent with statements made in the accompanying prospectus or any documents incorporated by reference herein or therein, the statements made in this prospectus supplement will be deemed to modify or supersede those made in the accompanying prospectus and such documents incorporated by reference herein or therein.
 
You should rely only on the information contained, or incorporated herein by reference, in this prospectus supplement and contained, or incorporated herein by reference, in the accompanying prospectus. We have not authorized anyone to provide you with different information. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus supplement and the accompanying prospectus. You should not rely on any unauthorized information or representation. This prospectus supplement is an offer to sell only the securities offered hereby, and only under circumstances and in jurisdictions where it is lawful to do so.
 
This prospectus supplement and the accompanying prospectus dated September 23, 2009 are part of a registration statement on Form S-3 (File No. 333-161789) we filed with the Securities and Exchange Commission, or SEC, using a “shelf” registration process. Under this “shelf” process, we may sell from time to time in one or more offerings up to $75,000,000 of shares of our common stock, preferred stock, debt securities, warrants to purchase common stock and/or warrants to purchase preferred stock.
 
Unless expressly stated otherwise, all references in this prospectus supplement and the accompanying prospectus to “the Company,” “Avanir,” “we,” “us,” “our,” or similar references mean Avanir Pharmaceuticals, Inc. and its subsidiaries on a consolidated basis.


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THE OFFERING
 
         
Common stock offered by us
    10,000,000 shares  
Common stock to be outstanding after this offering
    93,636,178 shares  
 
Use of proceeds
 
We intend to use the net proceeds for general working capital. In addition, the proceeds may be used for further clinical, regulatory and commercial development of our investigational product Zenvia, as well as potential business development activities. See “Use of Proceeds” on page S-15.
 
NASDAQ Global Market listing
 
Our common stock is listed on the NASDAQ Global Market under the symbol “AVNR.”
 
Risk factors
 
Investing in our common stock involves a high degree of risk. See “Risk Factors” beginning on page S-3 of this prospectus supplement.
 
Principal executive offices
 
Our principal executive offices are located at 101 Enterprise, Suite 300, Aliso Viejo, California 92656, and our telephone number is (949) 389-6700. Our website address is http://www.avanir.com. Information contained in, or accessible through, our website does not constitute a part of this prospectus supplement or the accompanying prospectus.
 
Outstanding shares
 
The number of shares of common stock to be outstanding after this offering is based on 83,636,178 shares outstanding on March 31, 2010 and excludes as of that date:
 
  •   5,882,458 shares of common stock issuable upon exercise of options outstanding as of March 31, 2010, at a weighted average exercise price of $1.60 per share, of which 5,518,018 shares are issuable under our 2003 Equity Incentive Plan (the “2003 Plan”) and 324,440 shares are issuable under our 2005 Equity Incentive Plan (the “2005 Plan”);
 
  •   restricted stock units representing a total of 1,401,629 shares of common stock issuable upon vesting;
 
  •   restricted stock units representing a total of 981,228 vested shares of common stock issuable to directors;
 
  •   warrants to purchase a total of 12,240,437 shares of common stock at a weighted average exercise price of $1.43 per share;
 
  •   6,397,226 shares available for grant as of March 31, 2010 under the 2003 Plan; and
 
  •   525,632 shares available for grant as of March 31, 2010 under the 2005 Plan.
 
Except as otherwise indicated, all information in this prospectus supplement assumes no exercise by the underwriters of their over-allotment option.


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RISK FACTORS
 
An investment in our common stock involves a high degree of risk. Before deciding whether to invest in our common stock, you should consider carefully the risks described below and discussed under the sections captioned “Risk Factors” contained in our Annual Report on Form 10-K for the year ended September 30, 2009, as filed with the SEC on November 25, 2009, and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2010, as filed with the SEC on May 3, 2010, which are incorporated by reference in this prospectus supplement and the accompanying prospectus in their entirety, together with other information in this prospectus supplement, the accompanying prospectus, the information and documents incorporated by reference, and in any free writing prospectus that we have authorized for use in connection with this offering. If any of these risks actually occurs, our business, financial condition, results of operations or cash flow could be seriously harmed. This could cause the trading price of our common stock to decline, resulting in a loss of all or part of your investment.
 
Our business, financial condition or results of operations could be materially adversely affected by any of these risks. The trading price of our securities could decline due to any of these risks, and you may lose part or all of your investment. This prospectus supplement, the accompanying prospectus and the incorporated documents also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks mentioned below. Forward-looking statements included in this prospectus supplement are based on information available to us on the date hereof, and all forward-looking statements in documents incorporated by reference are based on information available to us as of the date of such documents. We disclaim any intent to update any forward-looking statements.
 
Risks Relating to this Offering
 
Management will have broad discretion as to the use of the proceeds from this offering, and we may not use the proceeds effectively.
 
We have not designated the amount of net proceeds we will use for any particular purpose. Accordingly, our management will have broad discretion as to the application of the net proceeds and could use them for purposes other than those contemplated at the time of this offering. Our stockholders may not agree with the manner in which our management chooses to allocate and spend the net proceeds. Moreover, our management may use the net proceeds for corporate purposes that may not increase our profitability or our market value. See “Use of Proceeds” on page S-15 for a description of our management’s intended use of the proceeds from this offering.
 
You will experience immediate dilution in the book value per share of the common stock you purchase.
 
Because the price per share of our common stock being offered is substantially higher than the book value per share of our common stock, you will suffer substantial dilution in the net tangible book value of the common stock you purchase in this offering. Based on the public offering price of $2.75 per share, if you purchase shares of common stock in this offering, you will suffer immediate and substantial dilution of $2.36 per share in the net tangible book value of the common stock. See “Dilution” on page S-16 for a more detailed discussion of the dilution you will incur in this offering.
 
Risks Relating to Our Business
 
We have a history of net losses and an accumulated deficit, and we may never generate sufficient revenue to achieve or maintain profitability in the future.
 
We have experienced significant net losses and negative cash flows from operations. For the years ended September 30, 2009 and 2008, we had net losses of $22.0 million and $17.5 million, respectively. As of September 30, 2009, we had an accumulated deficit of $278.0 million, and as of March 31, 2010, we had an accumulated deficit of approximately $289.3 million. We have incurred these losses principally from costs incurred in funding the research, development and clinical testing of our drug candidates and from our general and administrative expenses. We may continue incurring net losses for the foreseeable future.
 
Our ability to generate revenue and achieve profitability is dependent on our ability, alone or with partners, to successfully complete the development of Zenvia, obtain the necessary regulatory approvals and, if approved, manufacture and market Zenvia for the treatment of patients with PBA. We are also developing Zenvia for use in other indications, which may or may not lead to obtaining the necessary regulatory approvals to market Zenvia for additional indications. We expect to continue to spend substantial amounts on research and development, including amounts spent on conducting clinical trials and seeking additional regulatory approvals for Zenvia, and


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preparing for the potential commercial launch of Zenvia. As a result, we may never generate sufficient revenue from product sales to become profitable or generate positive cash flows.
 
There can be no assurance that the FDA will approve Zenvia for PBA or any other indication.
 
In October 2006, we received an “approvable letter” from the U.S. Food and Drug Administration, or the FDA, for our new drug application, or NDA, submission for Zenvia in the treatment of patients with PBA. The approvable letter raised certain safety and efficacy concerns. Based on discussions with the FDA, we were able to successfully resolve the outstanding efficacy concern of the original dose formulation that was tested in earlier clinical trials. However, the safety concerns require additional clinical development to resolve. To address the safety concerns, we re-formulated Zenvia and conducted one additional confirmatory Phase III clinical trial using new lower quinidine dose formulations. Although we believe that the data from the confirmatory trial, combined with additional clinical and pre-clinical data, should be sufficient to address the issues outlined in the FDA approvable letter, it is possible that the FDA will continue to have safety or other concerns that could prevent or delay approval. Accordingly, there can be no assurance that the FDA will approve Zenvia for commercialization.
 
Additionally, although we have a Special Protocol Assessment, or SPA, from the FDA for our recently completed confirmatory Phase III trial for Zenvia in patients with PBA, there can be no assurance that the terms of the SPA will ultimately be binding on the FDA. An SPA is intended to serve as a binding agreement with the FDA on the adequacy of the planned design, conduct and analysis of a clinical trial. Even where an SPA has been granted, however, additional data may subsequently become available that causes the FDA to reconsider the previously agreed upon SPA and the FDA may have subsequent safety or efficacy concerns that override this agreement. As a result, even with positive data obtained under an SPA, we cannot be certain that the trial results will be found to be adequate to demonstrate a favorable risk/benefit profile required for product approval.
 
The FDA’s safety concerns regarding Zenvia for the treatment of PBA extend to other clinical indications that we have been pursuing, including DPN pain. Due to these concerns, any future development of Zenvia for other indications is expected to use an alternative lower-dose quinidine formulation, which may negatively affect efficacy.
 
We have successfully completed a single Phase III trial for Zenvia in the treatment of DPN pain. In communications regarding the continued development of Zenvia for this indication, the FDA has expressed that the safety concerns and questions raised in the PBA approvable letter necessitate the testing of a low-dose quinidine formulation in the DPN pain indication as well. Additionally, based on feedback we have received from the FDA on the proposed continued development of Zenvia for this indication, we believe it is likely that two large well-controlled Phase III trials would be needed to support an NDA filing for this indication. Due to our limited capital resources and current focus on gaining approval for the PBA indication, we do not expect that we will be able to conduct the trials needed for this indication without additional capital or a development partner for Zenvia. Moreover, although we achieved positive results in our initial Phase III trial, an alternative low-dose quinidine formulation may not yield the same levels of efficacy as seen in the earlier trials or as predicted based on our subsequent PK study. Any decrease in efficacy may be so great that the drug does not demonstrate a statistically significant improvement over placebo. Additionally, any alternative low-dose quinidine formulation that we develop may not sufficiently satisfy the FDA’s safety concerns. If this were to happen, we may not be able to pursue the development of Zenvia for other indications or may need to undertake significant additional clinical trials, which would be costly and cause potentially substantial delays.
 
Our near-term prospects are dependent on Zenvia. If we are unable to successfully develop and obtain regulatory approval for Zenvia for the treatment of patients with PBA, or if approved, to commercialize Zenvia, our ability to generate significant revenue or achieve profitability will be adversely affected.
 
Zenvia is currently not approved for marketing by the FDA and our ability to generate significant revenue in the near to medium term is entirely dependent upon our ability to receive FDA approval of Zenvia for PBA, and if successful, to commercialize Zenvia. If we are unable to successfully develop, obtain regulatory approval for and commercialize Zenvia for the treatment of patients with PBA, our ability to generate revenue from product sales will be significantly delayed and our stock price would likely decline.
 
Even if Zenvia receives marketing approval from the FDA, the approval may not be on the terms that we seek and could limit the marketability of the drug.
 
Even if the FDA approves Zenvia for marketing in one or more indications, approval could be granted on terms less favorable than those we are seeking. This may, in turn, limit our ability to commercialize Zenvia and generate


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substantial revenues from its sales. In addition to the confirmatory Phase III trial in PBA, we completed additional pre-clinical and clinical cardiac safety studies designed to enhance our complete response to the FDA’s approvable letter and to support planned label discussions with the FDA. Although we believe these studies showed an improvement in the margin of cardiac safety with the new lower dose of quinidine, it did show mean QTc prolongation of a duration that is above the FDA’s threshold of concern (5 ms mean increase) in approving new drugs. As a result, we could face one or more of the following risks:
 
  •   regulatory authorities may require the addition of labeling statements, such as a “black box” warning, which is the strongest type of warning that the FDA can require for a drug and is generally reserved for warning prescribers about adverse drug reactions that can cause serious injury or death;
 
  •   regulatory authorities may withdraw approval of the product after its initial approval;
 
  •   product labeling may be amended to restrict use in certain patient populations;
 
  •   physicians may be required to conduct tests prior to dispensing product or monitor patients taking Zenvia;
 
  •   we may be required to conduct additional studies either post-marketing or before approval;
 
  •   we may be subject to an extensive Risk Evaluation Mitigation Strategies (“REMS”) program that includes Elements to Assure Safe Use; and
 
  •   Zenvia may not be approved by the FDA for commercialization as the FDA may perceive that the benefit does not outweigh the potential risk.
 
Additionally, a total of seven deaths were reported during the double-blind phase of the STAR trial, all among ALS patients. Although the overall ALS mortality rate in the trial is consistent with published ALS mortality rates, it is possible that these deaths may negatively affect the FDA decision on our PBA application. Any of these events could prevent us from achieving or maintaining market acceptance of our product, even if it receives marketing approval, or could substantially increase the cost of commercialization, which in turn could impair our ability to generate revenues from the product candidate.
 
If we are unable to maintain adequate sales, marketing or distribution capabilities or enter into agreements with third parties to perform some of these functions, we will not be able to commercialize Zenvia effectively.
 
If Zenvia is approved for marketing, we may not be able to adequately build or maintain the necessary sales, marketing, supply chain management and reimbursement capabilities on our own or enter into arrangements with third parties to perform these functions in a timely manner or on acceptable terms. Additionally, maintaining sales, marketing and distribution capabilities may be more expensive than we anticipate, requiring us to divert capital from other intended purposes or preventing us from building our sales, marketing and distribution capabilities to the desired levels. To be successful we must:
 
  •   recruit and retain adequate numbers of effective sales personnel;
 
  •   effectively train our sales personnel in the benefits of Zenvia;
 
  •   establish and maintain successful sales and marketing and education programs that encourage physicians to recommend Zenvia to their patients; and
 
  •   manage geographically dispersed sales and marketing operations.
 
The potential commercialization of Zenvia requires us to manage relationships with an increasing number of collaborative partners, suppliers and third-party contractors. If we are unable to successfully establish and maintain the required infrastructure, either internally or through third parties, and successfully manage an increasing number of relationships, we will have difficulty growing our business. In addition, we may enter into co-promotion or out-licensing arrangements with other pharmaceutical or biotechnology partners where necessary to reach foreign market segments and when deemed strategically and economically advisable. To the extent that we enter into co-promotion or other licensing arrangements, our product revenues are likely to be lower than if we directly marketed and sold Zenvia, and some or all of the revenues we receive will depend upon the efforts of third parties, which may not be successful. If we are unable to develop and maintain adequate sales, marketing and distribution capabilities, independently or with others, we may not be able to generate significant product revenue or become profitable.
 
We have limited capital resources and will need to raise additional funds to support our operations.
 
We have experienced significant operating losses in funding the research, development and clinical testing of our drug candidates, accumulating losses totaling approximately $289.3 million as of March 31, 2010, and we expect to continue to incur substantial operating losses for the foreseeable future. As of March 31, 2010, we had


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approximately $20.7 million in cash and cash equivalents and restricted investments in marketable securities. Additionally, we currently do not have any meaningful sources of recurring revenue or cash flow from operations.
 
In light of our current capital resources, lack of near-term revenue opportunities and substantial long-term capital needs, including significant costs relating to the expected launch of Zenvia in early 2011 (assuming a favorable approval decision from the FDA), we will need to partner (either in the U.S. or ex-U.S.) or raise additional capital in the future to finance our long-term operations, including the planned launch of Zenvia, until we expect to be able to generate meaningful amounts of revenue from product sales. Based on our current loss rate and existing capital resources as of the date of this filing, we estimate that we have sufficient funds to sustain our operations at their current levels through calendar 2010, which includes the anticipated timing of the FDA approval decision for Zenvia in PBA in the second half of calendar year 2010. Although we expect to be able to raise additional capital, there can be no assurance that we will be able to do so or that the available terms of any financing would be acceptable to us. If we are unable to raise additional capital to fund future operations, then we may be unable to fully execute our development plans for Zenvia. This may result in significant delays in the development of Zenvia and may force us to further curtail our operations.
 
Any transactions that we may engage in to raise capital could dilute our stockholders and diminish certain commercial prospects.
 
Although we believe that we will have adequate capital reserves to fund operations beyond the anticipated timing of the FDA approval decision for Zenvia in PBA, we expect that we will need to raise additional capital in the future. We may do so through various financing alternatives, including licensing or sales of our technologies, drugs and/or drug candidates, selling shares of common or preferred stock, through the acquisition of other companies, or through the issuance of debt. Each of these financing alternatives carries certain risks. Raising capital through the issuance of common stock may depress the market price of our stock. Any such financing will dilute our existing stockholders and, if our stock price is relatively depressed at the time of any such offering, the levels of dilution would be greater. In addition, debt financing, to the extent available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as making capital expenditures or entering into licensing transactions. If we seek to raise capital through licensing transactions or sales of one or more of our technologies, drugs or drug candidates, as we have previously done with certain investigational compounds and docosanol 10% cream, then we will likely need to share a significant portion of future revenues from these drug candidates with our licensees. Additionally, the development of any drug candidates licensed or sold to third parties will no longer be in our control and thus we may not realize the full value of any such relationships.
 
In July 2009, we entered into a financing facility with Cantor Fitzgerald & Co., providing for the sale of up to 12.5 million shares of our common stock from time to time into the open market at prevailing prices. As of April 30, 2010, we had sold a total of approximately 4.7 million shares under this facility. We may or may not sell additional shares under this facility, depending on the volume and price of our common stock, as well as our capital needs and potential alternative sources of capital, such as a development partner for Zenvia. If we actively sell shares under this facility, a significant number of shares of common stock could be issued in a short period of time, although we would attempt to structure the volume and price thresholds in a way that minimizes market impact. Notwithstanding these control efforts, these sales, or the perceived risk of dilution from potential sales of stock through this facility, may depress our stock price or cause holders of our common stock to sell their shares, or it may encourage short selling by market participants, which could contribute to a decline in our stock price. A decline in our stock price might impede our ability to raise capital through the issuance of additional shares of common stock or other equity securities, and may cause our stockholders to lose part or all of the value of their investment in our stock.
 
We have licensed out or sold most of our non-core drug development programs and related assets and these and other possible future dispositions carry certain risks.
 
We have entered into agreements for the licensing out or sale of our non-core assets, including FazaClo, our anthrax antibody program, and other antibodies in our infectious disease program, as well as docosanol in major markets worldwide. As a result, we do not currently have a diversified pipeline of product candidates and our long-term success is currently dependent on Zenvia. From time to time, we have been and will continue to be engaged in discussions with potential licensing or development partners for Zenvia for PBA and/or other indications and we may choose to pursue a partnership or license involving Zenvia, if the terms are attractive. However, these transactions involve numerous risks, including:
 
  •   diversion of management’s attention from normal daily operations of the business;
 
  •   disputes over earn-outs, working capital adjustments or contingent payment obligations;


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  •   insufficient proceeds to offset expenses associated with the transactions; and
 
  •   the potential loss of key employees following such a transaction.
 
Transactions such as these may result in disputes regarding representations and warranties, indemnities, earn-outs, and other provisions in the transaction agreements. If disputes are resolved unfavorably, our financial condition and results of operations may be adversely affected and we may not realize the anticipated benefits from the transactions.
 
Disputes relating to these transactions can lead to expensive and time-consuming litigation and may subject us to unanticipated liabilities or risks, disrupt our operations, divert management’s attention from day-to-day operations, and increase our operating expenses.
 
Our issued patents may be challenged and our patent applications may be denied. Either result would seriously jeopardize our ability to compete in the intended markets for our proposed products.
 
We have invested in an extensive patent portfolio and we rely substantially on the protection of our intellectual property through our ownership or control of issued patents and patent applications. Because of the competitive nature of the biopharmaceutical industry, we cannot assure you that:
 
  •   the claims in any pending patent applications will be allowed or that patents will be granted;
 
  •   competitors will not develop similar or superior technologies independently, duplicate our technologies, or design around the patented aspects of our technologies;
 
  •   our technologies will not infringe on other patents or rights owned by others, including licenses that may not be available to us;
 
  •   any of our issued patents will provide us with significant competitive advantages;
 
  •   challenges will not be instituted against the validity or enforceability of any patent that we own or, if instituted, that these challenges will not be successful; or
 
  •   we will be able to secure additional worldwide intellectual property protection for our Zenvia patent portfolio.
 
Even if we successfully secure our intellectual property rights, third parties, including other biotechnology or pharmaceutical companies, may allege that our technology infringes on their rights or that our patents are invalid. Intellectual property litigation is costly, and even if we were to prevail in such a dispute, the cost of litigation could adversely affect our business, financial condition, and results of operations. Litigation is also time consuming and would divert management’s attention and resources away from our operations and other activities. If we were to lose any litigation, in addition to any damages we would have to pay, we could be required to stop the infringing activity or obtain a license. Any required license might not be available to us on acceptable terms, or at all. Some licenses might be non-exclusive, and our competitors could have access to the same technology licensed to us. If we were to fail to obtain a required license or were unable to design around a competitor’s patent, we would be unable to sell or continue to develop some of our products, which would have a material adverse effect on our business, financial condition and results of operations.
 
It is unclear whether we would be eligible for patent-term restoration in the U.S. under applicable law and we therefore do not know whether our patent-term can be extended.
 
Depending upon the timing, duration and specifics of FDA approval, if any, of Zenvia, some of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Amendments. If Zenvia is approved, the Hatch-Waxman Amendments may permit a patent restoration term of up to five years for one of our patents covering Zenvia as compensation for the patent term lost during product development and the regulatory review process. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of an NDA, plus the time between the submission date of an NDA and the approval of that application. We intend to apply for patent term restoration. However, because Zenvia is not a new chemical entity, but is a combination of two previously approved products, it is uncertain whether Zenvia will be granted any patent term restoration under the U.S. Patent and Trademark Office guidelines. In addition, the patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years after the product’s approval date.
 
Market exclusivity provisions under the Federal Food, Drug and Cosmetic Act, or the FDCA, also may delay the submission or the approval of certain applications for competing product candidates. The FDCA provides three years of non-patent marketing exclusivity for an NDA if new clinical investigations, other than bioavailability


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studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to the approval of the application. This three-year exclusivity covers only the conditions associated with the new clinical investigations and does not prohibit the FDA from approving abbreviated NDAs for drugs containing the original active agent.
 
Once the three-year FDCA exclusivity period has passed and after the patents (including the patent restoration term, if any) that cover Zenvia expire, generic drug companies would be able to introduce competing versions of the drug. If we are unsuccessful in defending our patents against generic competition, our long-term revenues from Zenvia sales may be less than expected, we may have greater difficulty finding a development partner or licensee for Zenvia and the costs to defend the patents would be significant.
 
We may be unable to protect our unpatented proprietary technology and information.
 
In addition to our patented intellectual property, we also rely on trade secrets and confidential information. We may be unable to effectively protect our rights to such proprietary technology or information. Other parties may independently develop or gain access to equivalent technologies or information and disclose it for others to use. Disputes may arise about inventorship and corresponding rights to know-how and inventions resulting from the joint creation or use of intellectual property by us and our corporate partners, licensees, scientific and academic collaborators and consultants. In addition, confidentiality agreements and material transfer agreements we have entered into with these parties and with employees and advisors may not provide effective protection of our proprietary technology or information or, in the event of unauthorized use or disclosure, may not provide adequate remedies.
 
If we fail to obtain regulatory approval in foreign jurisdictions, we would not be able to market our products abroad and our revenue prospects would be limited.
 
We may seek to have our products or product candidates marketed outside the United States. In order to market our products in the European Union and many other foreign jurisdictions, we must obtain separate regulatory approvals and comply with numerous and varying regulatory requirements. The approval procedure varies among countries and jurisdictions and can involve additional testing. The time required to obtain approval may differ from that required to obtain FDA approval. The foreign regulatory approval processes may include all of the risks associated with obtaining FDA approval. We may not obtain foreign regulatory approvals on a timely basis, if at all. For example, our development partner in Japan encountered significant difficulty in seeking approval of docosanol in that country and was forced to abandon efforts to seek approval in that country. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one foreign regulatory authority does not ensure approval by regulatory authorities in other foreign countries or jurisdictions or by the FDA. We may not be able to file for regulatory approvals and may not receive necessary approvals to commercialize our products in any market. The failure to obtain these approvals could materially adversely affect our business, financial condition and results of operations.
 
We face challenges retaining members of management and other key personnel.
 
The industry in which we compete has a high level of employee mobility and aggressive recruiting of skilled employees. This type of environment creates intense competition for qualified personnel, particularly in clinical and regulatory affairs, research and development and accounting and finance. Because we have a relatively small organization, the loss of any executive officers, including the Chief Executive Officer, key members of senior management or other key employees, could adversely affect our operations. For example, if we were to lose one or more of the senior members of our clinical and regulatory affairs team, the pace of clinical development for Zenvia could be slowed significantly.
 
Risks Relating to Our Industry
 
There are a number of difficulties and risks associated with clinical trials and our trials may not yield the expected results.
 
There are a number of difficulties and risks associated with conducting clinical trials. For instance, we may discover that a product candidate does not exhibit the expected therapeutic results, may cause harmful side effects or have other unexpected characteristics that may delay or preclude regulatory approval or limit commercial use if approved. It typically takes several years to complete a late-stage clinical trial and a clinical trial can fail at any stage of testing. If clinical trial difficulties or failures arise, our product candidates may never be approved for sale or become commercially viable.


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In addition, the possibility exists that:
 
  •   the results from earlier clinical trials may not be predictive of results that will be obtained from subsequent clinical trials, particularly larger trials;
 
  •   institutional review boards or regulators, including the FDA, may hold, suspend or terminate our clinical research or the clinical trials of our product candidates for various reasons, including noncompliance with regulatory requirements or if, in their opinion, the participating subjects are being exposed to unacceptable health risks;
 
  •   subjects may drop out of our clinical trials;
 
  •   our preclinical studies or clinical trials may produce negative, inconsistent or inconclusive results, and we may decide, or regulators may require us, to conduct additional preclinical studies or clinical trials;
 
  •   trial results derived from top-line data, which is based on a preliminary analysis of efficacy and safety data related to primary and secondary endpoints, may change following a more comprehensive review of the complete data set derived from a particular clinical trial or may change due to FDA requests to analyze the data differently; and
 
  •   the cost of our clinical trials may be greater than we currently anticipate.
 
It is possible that earlier clinical and pre-clinical trial results may not be predictive of the results of subsequent clinical trials. If earlier clinical and/or pre-clinical trial results cannot be replicated or are inconsistent with subsequent results, our development programs may be cancelled or deferred. In addition, the results of these prior clinical trials may not be acceptable to the FDA or similar foreign regulatory authorities because the data may be incomplete, outdated or not otherwise acceptable for inclusion in our submissions for regulatory approval.
 
Additionally, the FDA has substantial discretion in the approval process and may reject our data or disagree with our interpretations of regulations or draw different conclusions from our clinical trial data or ask for additional information at any time during their review. For example, the use of different statistical methods to analyze the efficacy data from our Phase III trial of Zenvia in DPN pain results in significantly different conclusions about the efficacy of the drug. Although we believe we have legitimate reasons to use the methods that we have adopted as outlined in our SPA with the FDA, the FDA may not agree with these reasons and may disagree with our conclusions regarding the results of these trials.
 
Although we would work to be able to fully address any such FDA concerns, we may not be able to resolve all such matters favorably, if at all. Disputes that are not resolved favorably could result in one or more of the following:
 
  •   delays in our ability to submit an NDA;
 
  •   the refusal by the FDA to accept for filing any NDA we may submit;
 
  •   requests for additional studies or data;
 
  •   delays in obtaining an approval;
 
  •   the rejection of an application; or
 
  •   the approval of the drug, but with adverse labeling claims that could adversely affect the commercial market.
 
If we do not receive regulatory approval to sell our product candidates or cannot successfully commercialize our product candidates, we would not be able to generate meaningful levels of sustainable revenues.
 
The pharmaceutical industry is highly competitive and most of our competitors have larger operations and have greater resources. As a result, we face significant competitive hurdles.
 
The pharmaceutical and biotechnology industries are highly competitive and subject to significant and rapid technological change. We compete with hundreds of companies that develop and market products and technologies in areas similar to those in which we are performing our research. For example, we expect that Zenvia will face competition from antidepressants, atypical anti-psychotic agents and other agents in the treatment of PBA and from a variety of pain medications and narcotic agents for the treatment of DPN pain.
 
Our competitors may have specific expertise and development technologies that are better than ours and many of these companies, which include large pharmaceutical companies, either alone or together with their research partners, have substantially greater financial resources, larger research and development capabilities and substantially greater experience than we do. Accordingly, our competitors may successfully develop competing


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products. We are also competing with other companies and their products with respect to manufacturing efficiencies and marketing capabilities, areas where we have limited or no direct experience.
 
If we fail to comply with regulatory requirements, regulatory agencies may take action against us, which could significantly harm our business.
 
Marketed products, along with the manufacturing processes, post-approval clinical data, labeling, advertising and promotional activities for these products, are subject to continual requirements and review by the FDA and other regulatory bodies. Even if we receive regulatory approval for one of our product candidates, the approval may be subject to limitations on the indicated uses for which the product may be marketed or to the conditions of approval or contain requirements for costly post-marketing testing and surveillance to monitor the safety or efficacy of the product.
 
In addition, regulatory authorities subject a marketed product, its manufacturer and the manufacturing facilities to ongoing review and periodic inspections. We will be subject to ongoing FDA requirements, including required submissions of safety and other post-market information and reports, registration requirements, current Good Manufacturing Practices (“cGMP”) regulations, requirements regarding the distribution of samples to physicians and recordkeeping requirements.
 
The cGMP regulations also include requirements relating to quality control and quality assurance, as well as the corresponding maintenance of records and documentation. We rely on the compliance by our contract manufacturers with cGMP regulations and other regulatory requirements relating to the manufacture of products. We are also subject to state laws and registration requirements covering the distribution of our products. Regulatory agencies may change existing requirements or adopt new requirements or policies. We may be slow to adapt or may not be able to adapt to these changes or new requirements.
 
We face uncertainty related to healthcare reform, pricing and reimbursement which could reduce our revenue.
 
The U.S. Congress recently adopted legislation regarding health insurance, which has been signed into law. As a result of this new legislation, substantial changes could be made to the current system for paying for healthcare in the United States, including changes made in order to extend medical benefits to those who currently lack insurance coverage. Extending coverage to a large population could substantially change the structure of the health insurance system and the methodology for reimbursing medical services, drugs and devices. These structural changes could entail modifications to the existing system of private payors and government programs, such as Medicare, Medicaid and State Children’s Health Insurance Program, creation of a government-sponsored healthcare insurance source, or some combination of both, as well as other changes. Restructuring the coverage of medical care in the United States could impact the reimbursement for prescribed drugs, biopharmaceuticals, medical devices, or our product candidates. If reimbursement for our approved product candidates, if any, is substantially less that we expect in the future, or rebate obligations associated with them are substantially increased, our business could be materially and adversely impacted.
 
Sales of Zenvia, if approved for commercialization, will depend in part on the availability of coverage and reimbursement from third-party payors such as government insurance programs, including Medicare and Medicaid, private health insurers, health maintenance organizations and other health care related organizations. If Zenvia is approved for commercialization, pricing and reimbursement may be uncertain. Both the federal and state governments in the United States and foreign governments continue to propose and pass new legislation affecting coverage and reimbursement policies, which are designed to contain or reduce the cost of health care. Further federal and state proposals and healthcare reforms are likely which could limit the prices that can be charged for the product candidates that we develop and may further limit our commercial opportunity. There may be future changes that result in reductions in current coverage and reimbursement levels for our products, if commercialized, and we cannot predict the scope of any future changes or the impact that those changes would have on our operations.
 
Adoption of Zenvia by the medical community may be limited if third-party payors will not offer coverage. Cost control initiatives may decrease coverage and payment levels for Zenvia and, in turn, the price that we will be able to charge. We are unable to predict all changes to the coverage or reimbursement methodologies that will be applied by private or government payors to Zenvia. Any denial of private or government payor coverage or inadequate reimbursement for procedures performed using Zenvia, if commercialized, could harm our business and reduce our revenue.


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We rely on insurance companies to mitigate our exposure for business activities, including developing and marketing pharmaceutical products for human use.
 
The conduct of our business, including the testing, marketing and sale of pharmaceutical products, involves the risk of liability claims by consumers, stockholders, and other third parties. Although we maintain various types of insurance, including product liability and director and officer liability, claims can be high and our insurance may not sufficiently cover our actual liabilities. If liability claims were made against us, it is possible that our insurance carriers may deny, or attempt to deny, coverage in certain instances. If a lawsuit against us is successful, then the lack or insufficiency of insurance coverage could materially and adversely affect our business and financial condition. Furthermore, various distributors of pharmaceutical products require minimum product liability insurance coverage before their purchase or acceptance of products for distribution. Failure to satisfy these insurance requirements could impede our ability to achieve broad distribution of our proposed products and the imposition of higher insurance requirements could impose additional costs on us. Additionally, we are potentially at risk if our insurance carriers become insolvent. Although we have historically obtained coverage through highly rated and capitalized firms, the ongoing financial crisis may affect our ability to obtain coverage under existing policies or purchase insurance under new policies at reasonable rates.
 
Risks Related to Reliance on Third Parties
 
Because we depend on clinical research centers and other contractors for clinical testing and for certain research and development activities, the results of our clinical trials and such research activities are, to a certain extent, beyond our control.
 
The nature of clinical trials and our business strategy of outsourcing a substantial portion of our research require that we rely on clinical research centers and other contractors to assist us with research and development, clinical testing activities, patient enrollment and regulatory submissions to the FDA. As a result, our success depends partially on the success of these third parties in performing their responsibilities. Although we pre-qualify our contractors and we believe that they are fully capable of performing their contractual obligations, we cannot directly control the adequacy and timeliness of the resources and expertise that they apply to these activities. Additionally, the current global economic slowdown may affect our development partners and vendors, which could adversely affect their ability to timely perform their tasks. If our contractors do not perform their obligations in an adequate and timely manner, the pace of clinical development, regulatory approval and commercialization of our drug candidates could be significantly delayed and our prospects could be adversely affected.
 
We depend on third parties to manufacture, package and distribute compounds for our drugs and drug candidates. The failure of these third parties to perform successfully could harm our business.
 
We have utilized, and intend to continue utilizing, third parties to manufacture, package and distribute Zenvia and the Active Pharmaceutical Ingredient (“API”) for docosanol 10% cream and to provide clinical supplies of our drug candidates. We have no experience in manufacturing and do not have any manufacturing facilities. Currently, we have sole suppliers for the API for docosanol and Zenvia, and a sole manufacturer for the finished form of Zenvia. In addition, these materials are custom and available from only a limited number of sources. Any material disruption in manufacturing could cause a delay in shipments and possible loss of sales. We do not have any long-term agreements in place with our current docosanol supplier or Zenvia supplier. If we are required to change manufacturers, we may experience delays associated with finding an alternate manufacturer that is properly qualified to produce supplies of our products and product candidates in accordance with FDA requirements and our specifications. Any delays or difficulties in obtaining APIs or in manufacturing, packaging or distributing Zenvia could delay our clinical trials of this product candidate for DPN pain. The third parties we rely on for manufacturing and packaging are also subject to regulatory review, and any regulatory compliance problems with these third parties could significantly delay or disrupt our commercialization activities. Additionally, the ongoing economic crisis creates risk for us if any of these third parties suffer liquidity or operational problems. If a key third party vendor becomes insolvent or is forced to lay off workers assisting with our projects, our results and development timing could suffer.
 
We generally do not control the development of compounds licensed to third parties and, as a result, we may not realize a significant portion of the potential value of any such license arrangements.
 
Under our typical license arrangement we have no direct control over the development of drug candidates and have only limited, if any, input on the direction of development efforts. These development efforts are made by our licensing partner, and if the results of their development efforts are negative or inconclusive, it is possible that our licensing partner could elect to defer or abandon further development of these programs. We similarly rely on


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licensing partners to obtain regulatory approval for docosanol in foreign jurisdictions. Because much of the potential value of these license arrangements is contingent upon the successful development and commercialization of the licensed technology, the ultimate value of these licenses will depend on the efforts of licensing partners. If our licensing partners do not succeed in developing the licensed technology for whatever reason, or elect to discontinue the development of these programs, we may be unable to realize the potential value of these arrangements. If we were to license Zenvia to a third party or a development partner, it is likely that much of the long-term success of that drug will similarly depend on the efforts of the licensee.
 
We expect to rely entirely on third parties for international registration, sales and marketing efforts.
 
In the event that we attempt to enter into international markets, we expect to rely on collaborative partners to obtain regulatory approvals and to market and sell our product(s) in those markets. We have not yet entered into any collaborative arrangement with respect to marketing or selling Zenvia, with the exception of one such agreement relating to Israel. We may be unable to enter into any other arrangements on terms favorable to us, or at all, and even if we are able to enter into sales and marketing arrangements with collaborative partners, we cannot assure you that their sales and marketing efforts will be successful. If we are unable to enter into favorable collaborative arrangements with respect to marketing or selling Zenvia in international markets, or if our collaborators’ efforts are unsuccessful, our ability to generate revenues from international product sales will suffer.
 
Risks Relating to Our Stock
 
Our stock price has historically been volatile and we expect that this volatility will continue for the foreseeable future.
 
The market price of our common stock has been, and is likely to continue to be, highly volatile. This volatility can be attributed to many factors independent of our operating results, including the following:
 
  •   comments made by securities analysts, including changes in their recommendations;
 
  •   short selling activity by certain investors, including any failures to timely settle short sale transactions;
 
  •   announcements by us of financing transactions and/or future sales of equity or debt securities;
 
  •   sales of our common stock by our directors, officers or significant stockholders;
 
  •   lack of volume of stock trading leading to low liquidity; and
 
  •   market and economic conditions.
 
If a substantial number of shares are sold into the market at any given time, particularly following any significant announcements or large swings in our stock price (whether sales are through the financing facility with Cantor Fitzgerald & Co. or from an existing stockholder), there may not be sufficient demand in the market to purchase the shares without a decline in the market price for our common stock. Moreover, continuous sales into the market of a number of shares in excess of the typical trading volume for our common stock, or even the availability of such a large number of shares, could depress the trading market for our common stock over an extended period of time.
 
Additionally, our stock price has been volatile as a result of announcements of regulatory actions and decisions relating to our product candidates, including Zenvia, and periodic variations in our operating results. We expect that our operating results will continue to vary from quarter to quarter. Our operating results and prospects may also vary depending on the status of our partnering arrangements.
 
As a result of these factors, we expect that our stock price may continue to be volatile and investors may be unable to sell their shares at a price equal to, or above, the price paid. Additionally, any significant drops in our stock price, such as the one we experienced following the announcement of the Zenvia approvable letter, could give rise to stockholder lawsuits, which are costly and time consuming to defend against and which may adversely affect our ability to raise capital while the suits are pending, even if the suits are ultimately resolved in favor of the Company. We have, from time to time, been a party to such suits and although none have been material to date, there can be no assurance that any such suit will not have an adverse effect on the Company.
 
If our internal controls over financial reporting are not considered effective, our business and stock price could be adversely affected.
 
Section 404 of the Sarbanes-Oxley Act of 2002 requires us to evaluate the effectiveness of our internal controls over financial reporting as of the end of each fiscal year, and to include a management report assessing the effectiveness of our internal controls over financial reporting in our annual report on Form 10-K for that fiscal


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year. Section 404 also requires our independent registered public accounting firm to attest to, and report on, management’s assessment of our internal controls over financial reporting.
 
Our management, including our chief executive officer and principal financial officer, does not expect that our internal controls over financial reporting will prevent all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud involving a company have been, or will be, detected. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and we cannot assure you that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become ineffective because of changes in conditions or deterioration in the degree of compliance with policies or procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected. We cannot assure you that we or our independent registered public accounting firm will not identify a material weakness in our internal controls in the future. A material weakness in our internal controls over financial reporting would require management and our independent registered public accounting firm to consider our internal controls as ineffective. If our internal controls over financial reporting are not considered effective, we may experience a loss of public confidence, which could have an adverse effect on our business and on the market price of our common stock.
 
Because we do not expect to pay dividends in the foreseeable future, you must rely on stock appreciation for any return on your investment.
 
We have paid no cash dividends on our common stock to date, and we currently intend to retain our future earnings, if any, to fund the development and growth of our business. As a result, we do not expect to pay any cash dividends in the foreseeable future, and payment of cash dividends, if any, will also depend on our financial condition, results of operations, capital requirements and other factors and will be at the discretion of our board of directors. Furthermore, we may in the future become subject to contractual restrictions on, or prohibitions against, the payment of dividends. Accordingly, the success of your investment in our common stock will likely depend entirely upon any future appreciation. There is no guarantee that our common stock will appreciate in value after the offering or even maintain the price at which you purchased your shares, and you may not realize a return on your investment in our common stock.
 
Our corporate governance documents, rights agreement and Delaware law may delay or prevent an acquisition of us that stockholders may consider favorable, which could decrease the value of our common stock.
 
Our certificate of incorporation and bylaws and Delaware law contain provisions that could make it more difficult for a third party to acquire us without the consent of our board of directors. These provisions include restrictions on the ability of our stockholders to remove directors and supermajority voting requirements for stockholders to amend our organizational documents and a classified board of directors. In addition, our board of directors has the right to issue preferred stock without stockholder approval, which could be used to dilute the stock ownership of a potential hostile acquirer. Delaware law, for instance, also imposes some restrictions on mergers and other business combinations between any holder of 15% or more of our outstanding common stock and us. Although we believe these provisions protect our stockholders from coercive or otherwise unfair takeover tactics and thereby provide for an opportunity to receive a higher bid by requiring potential acquirers to negotiate with our board of directors, these provisions apply even if the offer may be considered beneficial by some stockholders. We have also adopted a stockholder rights agreement intended to deter hostile or coercive attempts to acquire us. Under the agreement, if a person becomes an “acquiring person,” each holder of a right (other than the acquiring person) will be entitled to purchase, at the then-current exercise price, such number of shares of our preferred stock which are equivalent to shares of common stock having twice the exercise price of the right. If we are acquired in a merger or other business combination transaction after any such event, each holder of a right will then be entitled to purchase, at the then-current exercise price, shares of the acquiring company’s common stock having a value of twice the exercise price of the right. Our stockholder rights agreement could make it more difficult for a third party to acquire, or could discourage a third party from acquiring, us or a large block of our common stock without the support of our board of directors. Therefore, the agreement makes an acquisition much more costly to a potential acquirer.


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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This prospectus supplement, the accompanying prospectus and the documents we have filed with the SEC that are incorporated by reference contain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These statements relate to future events or to our future operating or financial performance and involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. Forward-looking statements may include, but are not limited to, statements about:
 
  •   the safety and efficacy of our products or product candidates;
 
  •   the progress, timing and results of clinical trials and research and development efforts involving our product candidates;
 
  •   the submission of applications for and receipt of regulatory clearances and approvals;
 
  •   our expectations with regard to our intellectual property position and our ability to successfully protect our intellectual property;
 
  •   our plans to conduct future clinical trials or research and development efforts;
 
  •   estimates of the potential markets for our product candidates;
 
  •   our operating and growth strategies, industry, planned products, and our expected future revenues, operations and expenditures and projected cash needs;
 
  •   our expectations about partnering, acquisitions, licensing and marketing;
 
  •   the use of proceeds from this offering; and
 
  •   economic conditions, both generally and those specifically related to the pharmaceutical industry.
 
In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “potential” and similar expressions intended to identify forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. We discuss many of these risks in greater detail under the heading “Risk Factors” beginning on page S-3 of this prospectus supplement and in our SEC filings. Also, these forward-looking statements represent our estimates and assumptions only as of the date of the document containing the applicable statement.
 
You should read this prospectus supplement, the accompanying prospectus and the documents we have filed with the SEC that are incorporated by reference completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of the forward-looking statements in the foregoing documents by these cautionary statements.
 
You should rely only on the information contained, or incorporated by reference, in this prospectus supplement and the accompanying prospectus. We and the underwriters for this offering have not authorized anyone to provide you with different information. The common stock offered under this prospectus is not being offered in any state where the offer is not permitted. You should not assume that the information contained in this prospectus supplement or the accompanying prospectus is accurate as of any date other than the date on the front of this prospectus supplement or the accompanying prospectus, as applicable, or that any information incorporated by reference in this prospectus supplement or the accompanying prospectus is accurate as of any date other than the date of the document so incorporated by reference. Unless required by law, we undertake no obligation to update or revise any forward- looking statements to reflect new information or future events or developments. Thus, you should not assume that our silence over time means that actual events are bearing out as expressed or implied in such forward-looking statements.


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USE OF PROCEEDS
 
We estimate that the net proceeds from the sale of the 10,000,000 shares of common stock that we are offering will be approximately $26.6 million, or approximately $30.6 million if the underwriters exercise in full their option to purchase 1,500,000 additional shares of common stock, based on the public offering price of $2.75 per share and after deducting the underwriting discounts and commissions and estimated offering expenses payable by us.
 
We intend to use the net proceeds for general working capital. In addition, the proceeds may be used for further clinical, regulatory and commercial development of our investigational product Zenvia, as well as business development activities.
 
The amounts and timing of these expenditures will depend on a number of factors, such as the timing, scope, progress and results of our research and development efforts, the timing and progress of any partnering efforts, and the competitive environment for our investigational product Zenvia. As of the date of this prospectus supplement, we cannot specify with certainty all of the particular uses of the proceeds from this offering. Accordingly, we will retain broad discretion over the use of such proceeds. Pending the use of the net proceeds from this offering as described above, we intend to invest the net proceeds in interest-bearing, investment-grade securities.


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DILUTION
 
Our net tangible book value as of March 31, 2010 was approximately $23.5 million, or $0.12 per share. Net tangible book value per share is determined by dividing our total tangible assets, less total liabilities, by the number of shares of our common stock outstanding as of March 31, 2010. Dilution in net tangible book value per share represents the difference between the amount per share paid by purchasers of shares of common stock in this offering and the net tangible book value per share of our common stock immediately after this offering.
 
After giving effect to the sale of 10,000,000 shares of our common stock in this offering at the public offering price of $2.75 per share and after deducting the underwriting discounts and commissions and estimated offering expenses payable by us, our as adjusted net tangible book value as of March 31, 2010 would have been approximately $36.6 million, or $0.39 per share. This represents an immediate increase in net tangible book value of $0.27 per share to existing stockholders and immediate dilution in net tangible book value of $2.36 per share to new investors purchasing our common stock in this offering. The following table illustrates this dilution on a per share basis:
 
                 
Public offering price per share
          $ 2.75  
Net tangible book value per share as of March 31, 2010
  $ 0.12          
Increase per share attributable to new investors
  $ 0.27          
As adjusted net tangible book value per share after this offering
          $ 0.39  
Dilution per share to new investors
          $ 2.36  
                 
 
If the underwriters exercise in full their option to purchase 1,500,000 additional shares of common stock at the public offering price of $2.75 per share, the as adjusted net tangible book value after this offering would be $0.43 per share, representing an increase in net tangible book value of $0.31 per share to existing stockholders and immediate dilution in net tangible book value of $2.32 per share to new investors purchasing our common stock in this offering.
 
The above discussion and table are based on 83,636,178 shares outstanding as of March 31, 2010, and exclude as of such date:
 
  •   5,882,458 shares of common stock issuable upon exercise of options outstanding as of March 31, 2010, at a weighted average exercise price of $1.60 per share, of which 5,518,018 shares are issuable under our 2003 Equity Incentive Plan (the “2003 Plan”) and 324,440 shares are issuable under our 2005 Equity Incentive Plan (the “2005 Plan”);
 
  •   restricted stock units representing a total of 1,401,629 shares of common stock issuable upon vesting;
 
  •   restricted stock units representing a total of 981,228 vested shares of common stock issuable to directors;
 
  •   warrants to purchase a total of 12,240,437 shares of common stock at a weighted average exercise price of $1.43 per share;
 
  •   6,397,226 shares available for grant as of March 31, 2010 under the 2003 Plan; and
 
  •   525,632 shares available for grant as of March 31, 2010 under the 2005 Plan.
 
To the extent that outstanding options or warrants are exercised, investors purchasing our common stock in this offering will experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.


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UNDERWRITING
 
Under the terms and subject to the conditions contained in an underwriting agreement dated May 6, 2010, the underwriters have agreed to purchase, and we have agreed to sell to the underwriters, the number of shares of common stock indicated in the table below. Jefferies & Company, Inc. is the sole book-running manager of the offering:
 
         
    Number of
Name
  Shares
 
Jefferies & Company, Inc. 
    7,250,000  
Canaccord Adams Inc. 
    2,750,000  
Total
    10,000,000  
 
The underwriters are offering the common stock subject to their acceptance of the shares from us and subject to prior sale. The underwriting agreement provides that the obligations of the underwriters to pay for and accept delivery of the shares offered by this prospectus supplement and the accompanying prospectus are subject to the approval of certain legal matters by their counsel and to certain other conditions. The underwriters are obligated to take and pay for all of the shares if any such shares are taken.
 
Commissions and Expenses
 
The underwriters have advised us that they propose to offer the shares to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at that price less a concession not in excess of $0.048 per share. After the offering, the public offering price and concession to dealers may be reduced by the underwriters. No such reduction shall change the amount of proceeds to be received by us as set forth on the cover page of this prospectus supplement. The shares are offered by the underwriters as stated herein, subject to receipt and acceptance by them and subject to their right to reject any order in whole or in part.
 
The following table shows the public offering price, the underwriting discounts and commissions payable to the underwriters by us and the proceeds, before expenses, to us.
 
                 
    Per Share   Total
 
Public offering price
  $ 2.75     $ 27,500,000  
Underwriting discounts and commissions paid by us
  $ 0.08     $ 800,000  
Proceeds to us, before expenses
  $ 2.67     $ 26,700,000  
 
We estimate expenses payable by us in connection with the offering of common stock, other than the underwriting discounts and commissions referred to above, will be approximately $100,000. Pursuant to the underwriting agreement, we have agreed to reimburse the underwriters for certain of their expenses in connection with this offering.
 
Option to Purchase Additional Shares
 
We have granted to the underwriters an option, exercisable for 30 days from the date of this prospectus supplement, to purchase up to an aggregate of 1,500,000 additional shares at the same price they are paying for the shares shown in the table above. The underwriters may exercise this option at any time and from time to time, in whole or in part, within 30 days after the date of this prospectus supplement. If the underwriters exercise the option in full, the total underwriting discounts and commissions payable by us will be $920,000, or $0.08 per share, and the total proceeds to us, before expenses, will be $30,705,000.
 
Indemnification
 
We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and liabilities arising from certain breaches by us of the underwriting agreement. We have also agreed to contribute to payments that the underwriters may be required to make in respect of those liabilities.
 
Lock-up Agreements
 
We, our executive officers and directors and certain of our stockholders have agreed, subject to specified exceptions, not to directly or indirectly:
 
  •   sell, offer, contract or grant any option to sell (including, without limitation, any short sale), pledge, transfer or establish an open put equivalent position within the meaning of Rule 16a-1(h) under the


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  Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise dispose of or transfer, or announce the offering of, or file any registration statement under the Securities Act of 1933, as amended, in respect of, any shares of common stock, options, rights or warrants to acquire shares of common stock or securities exchangeable or exercisable for or convertible into shares of common stock, or
 
  •   publicly announce the intention to do any of the foregoing.
 
The restrictions described above do not apply to:
 
  •   transfers by gift, will or intestate succession to the immediate family of a holder or to a trust the beneficiaries of which are exclusively the holder and/or a member or members of the holder’s immediate family; or
 
  •   in certain cases, sales or transfers of shares made pursuant to any trading plan established pursuant to Rule 10b5-1 of the Exchange Act that has been entered into prior to the date of this prospectus supplement.
 
The above restrictions terminate after the close of trading of the shares on and including the 90 days after the date of this prospectus supplement for us. However, subject to certain exceptions, in the event that either (i) during the last 17 days of each respective restricted period, we issue an earnings release or material news or a material event relating to us occurs or (ii) prior to the expiration of each respective restricted period, we announce that we will release earnings results during the 16-day period beginning on the last day of each respective restricted period, then in either case the expiration of each respective restricted period will be extended until the expiration of the 18-day period beginning on the date of the issuance of an earnings release or the occurrence of the material news or event, as applicable.
 
Jefferies & Company, Inc. may, at any time or from time to time before the termination of the restricted period, without notice, release all or any portion of the securities subject to lock-up agreements. There are no existing agreements between the underwriters and any of our stockholders who will execute a lock-up agreement, providing consent to the sale of shares (other than under one of the exceptions described above) prior to the expiration of the lock-up period.
 
Electronic Distribution
 
This prospectus supplement and the accompanying prospectus in electronic format may be made available on websites or through other online services maintained by the underwriters of the offering, or by their affiliates. Other than the prospectus supplement and the accompanying prospectus in electronic format, the information on the underwriters’ websites and any information contained in any other website maintained by the underwriters is not part of the prospectus supplement, the accompanying prospectus or the registration statement of which this prospectus supplement and the accompanying prospectus form a part, has not been approved and/or endorsed by us or any of the underwriters in its capacity as an underwriter and should not be relied upon by investors.
 
Price Stabilization, Short Positions and Penalty Bids
 
Until the distribution of the shares of common stock is completed, SEC rules may limit the underwriters from bidding for and purchasing shares of our common stock.
 
In connection with this offering, the underwriters may engage in transactions that stabilize, maintain or otherwise make short sales of our common stock and may purchase our common stock on the open market to cover positions created by short sales. Short sales involve the sale by an underwriter of a greater number of shares than it is required to purchase in this offering. “Covered” short sales are sales made in an amount not greater than the underwriter’s option to purchase additional shares in this offering. Each underwriter may close out any covered short position by either exercising its option to purchase additional shares or purchasing shares in the open market. In determining the source of shares to close out the covered short position, the underwriter will consider, among other things, the price of shares available for purchase in the open market as compared to the price at which the underwriter may purchase shares by exercising the over-allotment option. “Naked” short sales are sales in excess of the option to purchase additional shares. The underwriter must close out any naked short position by purchasing shares in the open market. A naked short position is more likely to be created if the underwriter is concerned that there may be downward pressure on the price of the shares in the open market after pricing that could adversely affect investors who purchase in this offering. A “stabilizing bid” is a bid for or the purchase of common stock on behalf of the underwriter in the open market prior to the completion of this offering for the purpose of fixing or maintaining the price of the shares of common stock. A “syndicate covering transaction” is the bid for or purchase


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of common stock on behalf of the underwriter to reduce a short position incurred by the underwriter in connection with the offering.
 
Similar to other purchase transactions, the underwriters’ purchases to cover the syndicate short sales may have the effect of raising or maintaining the market price of our shares or preventing or retarding a decline in the market price of our shares. As a result, the price of our shares may be higher than the price that might otherwise exist in the open market.
 
In connection with this offering, the underwriters may also engage in passive market making transactions in our common stock on the Nasdaq Global Market in accordance with Rule 103 of Regulation M during a period before the commencement of offers or sales of shares of our common stock in this offering and extending through the completion of distribution. A passive market maker must display its bid at a price not in excess of the highest independent bid of that security. However, if all independent bids are lowered below the passive market maker’s bid, that bid must then be lowered when specified purchase limits are exceeded.
 
Neither we, nor any of the underwriters, makes any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of our common stock. In addition, none of we or any of the underwriters makes any representation that the underwriters will engage in these transactions or that any transaction, if commenced, will not be discontinued without notice.
 
Affiliations
 
In the future, any of the underwriters and its respective affiliates may provide various investment banking, commercial banking, financial advisory and other services to us and our affiliates for which services they have received, and may in the future receive, customary fees. In the course of its businesses, any underwriter and its affiliates may actively trade our securities or loans for their own account or for the accounts of customers, and, accordingly, any underwriter and its affiliates may at any time hold long or short positions in such securities or loans.
 
NOTICE TO INVESTORS
 
European Economic Area
 
In relation to each Member State of the European Economic Area which has implemented the Prospectus Directive (as defined below) (each, a Relevant Member State), with effect from and including the date on which the Prospectus Directive is implemented in that Relevant Member State, or the Relevant Implementation Date, an offer of our common stock to the public may not be made in that Relevant Member State prior to the publication of a prospectus in relation to our common stock which has been approved by the competent authority in that Relevant Member State or, where appropriate, approved in another Relevant Member State and notified to the competent authority in that Relevant Member State, all in accordance with the Prospectus Directive, except that an offer to the public in that Relevant Member State of any shares of our common stock may be made at any time under the following exemptions under the Prospectus Directive if they have been implemented in the Relevant Member State:
 
  (a)  to legal entities which are authorized or regulated to operate in the financial markets or, if not so authorized or regulated, whose corporate purpose is solely to invest in securities;
 
  (b)  to any legal entity which has two or more of (1) an average of at least 250 employees during the last financial year; (2) a total balance sheet of more than €43,000,000 and (3) an annual net turnover of more than €50,000,000, as shown in its last annual or consolidated accounts;
 
  (c)  to fewer than 100 natural or legal persons per Relevant Member State (other than qualified investors as defined in the Prospectus Directive); or
 
  (d)  in any other circumstances falling within Article 3(2) of the Prospectus Directive,
 
provided that no such offer of our common stock shall result in a requirement for the publication by us or any underwriter of a prospectus pursuant to Article 3 of the Prospectus Directive.
 
For the purposes of this provision, the expression an “offer of our common stock to the public” in relation to any shares of our common stock in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and our common stock to be offered so as to enable an


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investor to decide to purchase or subscribe for our common stock, as the same may be varied in that Member State by any measure implementing the Prospectus Directive in that Member State and the expression “Prospectus Directive” means Directive 2003/71/EC and includes any relevant implementing measure in each Relevant Member State.
 
United Kingdom
 
Shares of our common stock may not be offered or sold and will not be offered or sold to any persons in the United Kingdom other than to persons whose ordinary activities involve them in acquiring, holding, managing or disposing of investments (as principal or as agent) for the purposes of their businesses or otherwise in circumstances which have not resulted or will not result in an offer to the public in the United Kingdom within the meaning of the Financial Services and Markets Act 2000, or the FSMA.
 
In addition, any invitation or inducement to engage in investment activity (within the meaning of section 21 of the FSMA) in connection with the issue or sale of shares of our common stock may only be communicated or caused to be communicated in circumstances in which Section 21(1) of the FSMA does not apply to us. Without limitation to the other restrictions referred to herein, this prospectus supplement and the accompanying prospectus are directed only at (1) persons outside the United Kingdom or (2) persons who:
 
  (a)  are qualified investors as defined in section 86(7) of FSMA, being persons falling within the meaning of article 2.1(e)(i), (ii) or (iii) of the Prospectus Directive; and
 
  (b)  are either persons who fall within article 19(1) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended, or Order, or are persons who fall within article 49(2)(a) to (d) (“high net worth companies, unincorporated associations, etc.”) of the Order; or
 
  (c)  to whom it may otherwise lawfully be communicated in circumstances in which Section 21(1) of the FSMA does not apply.
 
Without limitation to the other restrictions referred to herein, any investment or investment activity to which this prospectus supplement and the accompanying prospectus relate is available only to, and will be engaged in only with, such persons, and persons within the United Kingdom who receive this communication (other than persons who fall within (2) above) should not rely or act upon this communication.
 
Germany
 
Any offer or solicitation of securities within Germany must be in full compliance with the German Securities Prospectus Act (Wertpapierprospektgesetz — WpPG). The offer and solicitation of securities to the public in Germany requires the publication of a prospectus that has to be filed with and approved by the German Federal Financial Services Supervisory Authority (Bundesanstalt für Finanzdienstleistungsaufsicht — BaFin). This prospectus supplement and the accompanying prospectus have not been and will not be submitted for filing and approval to the BaFin and, consequently, will not be published. Therefore, this prospectus supplement and the accompanying prospectus do not constitute a public offer under the German Securities Prospectus Act (Wertpapierprospektgesetz). This prospectus supplement, the accompanying prospectus and any other document relating to our common stock, as well as any information contained therein, must therefore not be supplied to the public in Germany or used in connection with any offer for subscription of our common stock to the public in Germany, any public marketing of our common stock or any public solicitation for offers to subscribe for or otherwise acquire our common stock. This prospectus supplement, the accompanying prospectus and other offering materials relating to the offer of our common stock are strictly confidential and may not be distributed to any person or entity other than the designated recipients hereof.
 
Sweden
 
This is not a prospectus under, and has not been prepared in accordance with the prospectus requirements provided for in, the Swedish Financial Instruments Trading Act [lagen (1991:980) om handel med finasiella instrument] nor any other Swedish enactment. Neither the Swedish Financial Supervisory Authority nor any other Swedish public body has examined, approved, or registered this document.


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LEGAL MATTERS
 
Goodwin Procter LLP of San Francisco, California will issue an opinion with respect to the validity of the issuance of the securities being offered hereby. Latham & Watkins LLP of Costa Mesa, California is counsel to the underwriters in connection with this offering.
 
EXPERTS
 
KMJ Corbin & Company LLP, independent registered public accounting firm, has audited our consolidated financial statements included in our Annual Report on Form 10-K for the year ended September 30, 2009, as set forth in their reports, which are incorporated by reference in this prospectus supplement and elsewhere in the registration statement. Our financial statements are incorporated by reference in reliance on KMJ Corbin & Company’s report, given on their authority as experts in accounting and auditing.
 
WHERE YOU CAN FIND MORE INFORMATION
 
This prospectus supplement and the accompanying prospectus are part of the registration statement on Form S-3 we filed with the SEC under the Securities Act and do not contain all the information set forth in the registration statement. Whenever a reference is made in this prospectus supplement or the accompanying prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits that are a part of the registration statement or the exhibits to the reports or other documents incorporated by reference in this prospectus supplement and the accompanying prospectus for a copy of such contract, agreement or other document. Because we are subject to the information and reporting requirements of the Exchange Act we file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the Internet at the SEC’s website at http://www.sec.gov. You may also read and copy any document we file at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the operation of the Public Reference Room.
 
INCORPORATION BY REFERENCE
 
The SEC allows us to “incorporate by reference” information from other documents that we file with them, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus supplement and the accompanying prospectus. Information contained in this prospectus supplement and the accompanying prospectus and information that we file with the SEC in the future and incorporate by reference in this prospectus supplement and the accompanying prospectus will automatically update and supersede this information. We incorporate by reference the documents listed below and any future filings (other than Current Reports on Form 8-K furnished under Item 2.02 or Item 7.01 and exhibits filed on such form that are related to such items) we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the prospectus supplement and until the termination of this offering:
 
  1.  Our Annual Report on Form 10-K for the year ended September 30, 2009;
 
  2.  Our Definitive Proxy Statement on Schedule 14A filed with the SEC on December 28, 2009;
 
  3.  Our Quarterly Reports on Form 10-Q for the periods ended December 31, 2009 and March 31, 2010;
 
  4.  Our Current Reports on Form 8-K filed with the SEC on November 17, 2009, February 23, 2010 and May 6, 2010; and
 
  5.  The description of our common stock contained in our registration statement on Form 8-A/A (File No. 001-15803) filed with the SEC on March 25, 2009, including any amendment or report filed for the purpose of updating such description.
 
Upon written or oral request, we will provide without charge to each person to whom a copy of the prospectus supplement is delivered a copy of the documents incorporated by reference herein (other than exhibits to such documents unless such exhibits are specifically incorporated by reference herein). You may request a copy of these filings, at no cost, by writing or telephoning us at the following address: Avanir Pharmaceuticals, Inc., 101 Enterprise, Suite 300, Aliso Viejo, California 92656, Attention: Investor Relations, telephone: (949) 389-6700. We have authorized no one to provide you with any information that differs from that contained in this prospectus. Accordingly, you should not rely on any information that is not contained in this prospectus. You should not assume that the information in this prospectus is accurate as of any date other than the date of the front cover of this prospectus.


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PROSPECTUS
 
$75,000,000
 
AVANIR Pharmaceuticals, Inc.
 
Common Stock
Preferred Stock
Debt Securities
Warrants
 
 
 
 
We may offer and sell an indeterminate number of shares of our common stock and preferred stock, debt securities and warrants from time to time under this prospectus. We may offer these securities separately or as units, which may include combinations of the securities. We will describe in a prospectus supplement the securities we are offering and selling, as well as the specific terms of the securities.
 
We may offer these securities in amounts, at prices and on terms determined at the time of offering. We may sell the securities directly to you, through agents we select, or through underwriters and dealers we select. If we use agents, underwriters or dealers to sell the securities, we will name them and describe their compensation in a prospectus supplement.
 
Our common stock trades on the NASDAQ Global Market under the symbol “AVNR.” On September 4, 2009, the closing price for our common stock, as reported on the NASDAQ Global Market, was $1.97 per share.
 
 
 
 
Investing in our securities involves certain risks.  See “Risk Factors” beginning on Page 3 of this prospectus and in the applicable prospectus supplement for certain risks you should consider. You should read the entire prospectus carefully before you make your investment decision.
 
 
 
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.


 


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ABOUT THIS PROSPECTUS
 
This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (“SEC”), utilizing a shelf registration process. Under the shelf registration process, we may offer shares of our common stock and preferred stock, various series of debt securities and warrants to purchase any of such securities with a total value of up to $75,000,000 from time to time under this prospectus at prices and on terms to be determined by market conditions at the time of offering. This prospectus provides you with a general description of the securities we may offer. Each time we offer a type or series of securities, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities, including, to the extent applicable:
 
  •  designation or classification;
 
  •  aggregate principal amount or aggregate offering price;
 
  •  maturity;
 
  •  original issue discount, if any;
 
  •  rates and times of payment of interest, dividends or other payments, if any;
 
  •  redemption, conversion, exchange, settlement or sinking fund terms, if any;
 
  •  conversion, exchange or settlement prices or rates, if any, and, if applicable, any provisions for changes to or adjustments in the conversion, exchange or settlement prices or rates and in the securities or other property receivable upon conversion, exchange or settlement;
 
  •  ranking;
 
  •  restrictive covenants, if any;
 
  •  voting or other rights, if any; and
 
  •  important federal income tax considerations.
 
A prospectus supplement may include a discussion of risks or other special considerations applicable to us or the offered securities. A prospectus supplement may also add, update or change information in this prospectus. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement, you must rely on the information in the prospectus supplement. Please carefully read both this prospectus and the applicable prospectus supplement together with additional information described under the heading “Where You Can Find More Information.” This prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement.
 
The registration statement containing this prospectus, including exhibits to the registration statement, provides additional information about us and the common stock offered under this prospectus. The registration statement can be read at the SEC website or at the SEC’s public reading room mentioned under the heading “Where You Can Find More Information.”
 
We have not authorized any broker-dealer, salesperson or other person to give any information or to make any representation other than those contained or incorporated by reference in this prospectus and the accompanying supplement to this prospectus. You must not rely upon any information or representation not contained or incorporated by reference in this prospectus or the accompanying prospectus supplement. This prospectus and the accompanying supplement to this prospectus do not constitute an offer to sell or the solicitation of an offer to buy securities, nor do this prospectus and the accompanying supplement to this prospectus constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation. The information contained in this prospectus and the accompanying prospectus supplement speaks only as of the date set forth on the cover page and may not reflect subsequent changes in our business, financial condition, results of operations and prospects even though this prospectus and any accompanying prospectus supplement is delivered or securities are sold on a later date.


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We may sell the securities directly to or through underwriters, dealers or agents. We, and our underwriters or agents, reserve the right to accept or reject all or part of any proposed purchase of securities. If we do offer securities through underwriters or agents, we will include in the applicable prospectus supplement:
 
  •  the names of those underwriters or agents;
 
  •  applicable fees, discounts and commissions to be paid to them;
 
  •  details regarding over-allotment options, if any; and
 
  •  the net proceeds to us.
 
Common Stock.  We may issue shares of our common stock from time to time. Holders of our common stock are entitled to one vote per share for the election of directors and on all other matters that require stockholder approval. Subject to any preferential rights of any outstanding preferred stock, in the event of our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in the assets remaining after payment of liabilities and the liquidation preferences of any outstanding preferred stock. Our common stock does not carry any redemption rights or any preemptive rights enabling a holder to subscribe for, or receive shares of, any class of our common stock or any other securities convertible into shares of any class of our common stock.
 
Preferred Stock.  We may issue shares of our preferred stock from time to time, in one or more series. Under our certificate of incorporation, our board of directors has the authority, without further action by stockholders, to designate up to 10,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges, qualifications and restrictions granted to or imposed upon the preferred stock, including dividend rights, conversion rights, voting rights, rights and terms of redemption, liquidation preference and sinking fund terms, any or all of which may be greater than the rights of the common stock.
 
If we issue preferred stock, we will fix the rights, preferences, privileges, qualifications and restrictions of the preferred stock of each series that we sell under this prospectus and applicable prospectus supplements in the certificate of designations relating to that series. If we issue preferred stock, we will incorporate by reference into the registration statement of which this prospectus is a part the form of any certificate of designations that describes the terms of the series of preferred stock we are offering before the issuance of the related series of preferred stock. We urge you to read the prospectus supplement related to any series of preferred stock we may offer, as well as the complete certificate of designations that contains the terms of the applicable series of preferred stock.
 
Debt Securities.  We may issue debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. The senior debt securities will rank equally with any other unsubordinated debt that we may have and may be secured or unsecured. The subordinated debt securities will be subordinate and junior in right of payment, to the extent and in the manner described in the instrument governing the debt, to all or some portion of our indebtedness. Any convertible debt securities that we issue will be convertible into or exchangeable for our common stock or other securities of ours. Conversion may be mandatory or at your option and would be at prescribed conversion rates.
 
If we issue debt securities, they will be issued under one or more documents called indentures, which are contracts between us and a trustee for the holders of the debt securities. We urge you to read the prospectus supplement related to the series of debt securities being offered, as well as the complete indenture that contains the terms of the debt securities (which will include a supplemental indenture). If we issue debt securities, indentures and forms of debt securities containing the terms of debt securities being offered will be incorporated by reference into the registration statement of which this prospectus is a part from reports we would subsequently file with the SEC.
 
Warrants.  We may issue warrants for the purchase of common stock, preferred stock and/or debt securities in one or more series, from time to time. We may issue warrants independently or together with common stock, preferred stock and/or debt securities, and the warrants may be attached to or separate from those securities.
 
If we issue warrants, they will be evidenced by warrant agreements or warrant certificates issued under one or more warrant agreements, which are contracts between us and an agent for the holders of the warrants. We urge you to read the prospectus supplement related to any series of warrants we may offer, as well as the complete warrant agreement and warrant certificate that contain the terms of the warrants. If we issue warrants, forms of warrant


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agreements and warrant certificates relating to warrants for the purchase of common stock, preferred stock and debt securities will be incorporated by reference into the registration statement of which this prospectus is a part from reports we would subsequently file with the SEC.
 
ABOUT AVANIR PHARMACEUTICALS, INC.
 
Avanir Pharmaceuticals, Inc., a Delaware corporation originally incorporated in California in August 1988 and reincorporated in Delaware in March 2009, is a pharmaceutical company focused on developing, acquiring and commercializing novel therapeutic products for the treatment of chronic diseases. Our product candidates address therapeutic markets that include the central nervous system and inflammatory diseases. Our lead product candidate, Zenviatm (dextromethorphan hydrobromide/quinidine sulfate), is currently in Phase III clinical development for the treatment of pseudobulbar affect (“PBA”) and diabetic peripheral neuropathic pain (“DPN pain”). Our first commercialized product, docosanol 10% cream, (sold as Abreva® by our marketing partner GlaxoSmithKline Consumer Healthcare in North America) is the only over-the-counter treatment for cold sores that has been approved by the FDA. Our inflammatory disease program, which targets macrophage migration inhibitory factor (“MIF”), is currently partnered with Novartis. Our infectious disease program has historically been focused primarily on monoclonal antibodies. In 2008, we sold our rights to substantially all of these monoclonal antibodies to two biotechnology companies. As of June 30, 2008, we ceased all future research and development work related to our infectious disease program and remain eligible to receive additional milestone payments and royalties related to the program.
 
For additional information about our company, please refer to other documents we have filed with the SEC and that are incorporated by reference into this prospectus, as listed under the heading “Incorporation of Certain Information by Reference.”
 
Our offices are located at 101 Enterprise, Suite 300, Aliso Viejo, California 92656. Our telephone number is (949) 389-6700 and our e-mail address is info@avanir.com. Additional information about Avanir can be found on our website, at www.avanir.com, and in our periodic and current reports filed with the SEC. Copies of our current and periodic reports filed with the SEC are available at the SEC Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549, and online at www.sec.gov and our website at www.avanir.com. No portion of our website is incorporated by reference into this prospectus.
 
RISK FACTORS
 
Before making an investment decision, you should carefully consider the risks described under “Risk Factors” in the applicable prospectus supplement, together with all of the other information appearing in this prospectus or incorporated by reference into this prospectus and any applicable prospectus supplement, in light of your particular investment objectives and financial circumstances. Our business, financial condition or results of operations could be materially adversely affected by any of these risks. The trading price of our securities could decline due to any of these risks, and you may lose all or part of your investment. This prospectus and the incorporated documents also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks mentioned above.
 
NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This prospectus contains or incorporates by reference forward-looking statements and readers are cautioned that our actual results may differ materially from those discussed in the forward-looking statements. These forward-looking statements include, without limitation, statements regarding the progress and timing of clinical trials, the safety and efficacy of our product candidates, the goals of our development activities, estimates of the potential markets for our product candidates, projected cash needs and our expected future revenues, operations and expenditures. These statements relate to future events or our future financial performance and involve known and unknown risks, uncertainties and other factors that could cause our actual results, levels of activity, performance or


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achievement to differ materially from those expressed or implied by these forward-looking statements. These risks and uncertainties include, among others:
 
  •  risks relating to the uncertainty around the conduct of clinical trials generally and, more specifically, around our ongoing and future clinical trials for Zenvia for both PBA and DPN pain;
 
  •  risks of delay in meeting our development plans, including delays in patient enrollment in our clinical trials;
 
  •  risks relating to our lack of profitability, our significant historical operating losses and our ability to obtain additional funding to continue to operate our business, which funding may not be available on commercially reasonable terms, or at all;
 
  •  risks relating to our patent portfolio and the patent portfolios of competitors;
 
  •  risks relating to turnover in senior management and our reliance on key employees;
 
  •  risks around our reliance on third parties to conduct our clinical trials and manufacture our product candidates; and
 
  •  competitive risks in our industry.
 
In evaluating our business, prospective investors should carefully consider these factors in addition to the other information set forth in this prospectus and incorporated herein by reference, including under the caption, “Risk Factors.” All forward-looking statements included in this document are based on information available to us on the date hereof, and all forward-looking statements in documents incorporated by reference are based on information available to us as of the date of such documents. We disclaim any intent to update any forward-looking statements.
 
DESCRIPTION OF SECURITIES
 
We may offer shares of our common stock and preferred stock, various series of debt securities and warrants to purchase any such securities with a total value of up to $75,000,000 from time to time under this prospectus at prices and on terms to be determined by market conditions at the time of offering. Each time we offer a type or series of securities, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities.
 
USE OF PROCEEDS
 
We will retain broad discretion over the use of the net proceeds from the sale of our securities offered hereby. Except as described in any prospectus supplement, we currently anticipate using the net proceeds from the sale of our securities hereby primarily to fund the development and commercialization of Zenvia for PBA and DPN pain, for our ongoing and future clinical trials and for general and administrative expenses. We may also use a portion of the net proceeds to pay off outstanding indebtedness and/or acquire or invest in complementary businesses, products and technologies. Although we have no specific agreements, commitments or understandings with respect to any acquisition, we evaluate acquisition opportunities and engage in related discussions with other companies from time to time.
 
Pending the use of the net proceeds, we intend to invest the net proceeds in short-term, interest-bearing, investment-grade securities.
 
RATIO OF EARNINGS TO FIXED CHARGES
 
If we offer debt securities and/or preference equity securities under this prospectus, then we will, at that time, provide a ratio of earnings to fixed charges and/or ratio of combined fixed charges and preference dividends to earnings, respectively, in the applicable prospectus supplement for such offering.


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PLAN OF DISTRIBUTION
 
We may sell the securities covered by this prospectus from time to time in one or more offerings. Registration of the securities covered by this prospectus does not mean, however, that those securities will necessarily be offered or sold.
 
We may sell the securities separately or together:
 
  •  through one or more underwriters or dealers in a public offering and sale by them;
 
  •  directly to investors; or
 
  •  through agents.
 
We may sell the securities from time to time:
 
  •  in one or more transactions at a fixed price or prices, which may be changed from time to time;
 
  •  at market prices prevailing at the times of sale;
 
  •  at prices related to such prevailing market prices; or
 
  •  at negotiated prices.
 
We will describe the method of distribution of the securities and the terms of the offering in the prospectus supplement.
 
Any discounts or concessions allowed or re-allowed or paid to dealers may be changed from time to time.
 
If underwriters are used in the sale of any securities, the securities will be acquired by the underwriters for their own account and may be resold from time to time in one or more transactions described above. The securities may be either offered to the public through underwriting syndicates represented by managing underwriters, or directly by underwriters. Generally, the underwriters’ obligations to purchase the securities will be subject to conditions precedent and the underwriters will be obligated to purchase all of the securities if they purchase any of the securities. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement, naming the underwriter, the nature of any such relationship.
 
We may authorize underwriters, dealers or agents to solicit offers by certain purchasers to purchase the securities from us at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. The contracts will be subject only to those conditions set forth in the prospectus supplement, and the prospectus supplement will set forth any commissions we pay for solicitation of these contracts.
 
We may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement or in a post-effective amendment.
 
Underwriters, dealers and agents may be entitled to indemnification by us against certain civil liabilities, including liabilities under the Securities Act, or to contribution with respect to payments made by the underwriters, dealers or agents, under agreements between us and the underwriters, dealers and agents.
 
We may grant underwriters who participate in the distribution of securities an option to purchase additional securities to cover over-allotments, if any, in connection with the distribution.
 
Underwriters, dealers or agents may receive compensation in the form of discounts, concessions or commissions from us or our purchasers, as their agents in connection with the sale of securities. These underwriters, dealers or agents may be considered to be underwriters under the Securities Act. As a result, discounts, commissions


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or profits on resale received by the underwriters, dealers or agents may be treated as underwriting discounts and commissions. The prospectus supplement will identify any such underwriter, dealer or agent and describe any compensation received by them from us. Any initial public offering price and any discounts or concessions allowed or re-allowed or paid to dealers may be changed from time to time.
 
Unless otherwise specified in the related prospectus supplement, all securities we offer, other than common stock, will be new issues of securities with no established trading market. Any underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. Any common stock sold pursuant to a prospectus supplement will be listed for trading on the NASDAQ Stock Market or other principal market for our common stock. We may apply to list any series of debt securities, preferred stock or warrants on an exchange, but we are not obligated to do so. Therefore, there may not be liquidity or a trading market for any series of securities.
 
Any underwriter may engage in over-allotment transactions, stabilizing transactions, short-covering transactions and penalty bids in accordance with Regulation M under the Exchange Act. Over-allotment involves sales in excess of the offering size, which create a short position. Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Short covering transactions involve purchases of the securities in the open market after the distribution is completed to cover short positions. Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time. We make no representation or prediction as to the direction or magnitude of any effect that such transactions may have on the price of the securities. For a description of these activities, see the information under the heading “Underwriting” or “Plan of Distribution” in the applicable prospectus supplement.
 
Underwriters, broker-dealers or agents who may become involved in the sale of the common stock may engage in transactions with and perform other services for us in the ordinary course of their business for which they receive compensation.
 
LEGAL MATTERS
 
The legality of the issuance of the securities being offered hereby and the binding nature of any debt securities or warrants being offered hereby is being passed upon by Goodwin Procter LLP, San Francisco, California.
 
EXPERTS
 
The consolidated financial statements incorporated in this prospectus by reference from Avanir Pharmaceuticals, Inc.’s predecessor California corporation’s Annual Report on Form 10-K for the year ended September 30, 2008 have been audited by KMJ Corbin & Company LLP, an independent registered public accounting firm, as stated in their report, which is incorporated herein by reference, and has been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.
 
INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
 
The SEC allows us to incorporate by reference into this prospectus the information contained in other documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents. Any statement contained in any document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded, for purposes of this prospectus, to the extent that a statement contained in or omitted from this prospectus, or in any other subsequently filed document that also is or is deemed to be incorporated by reference herein, modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus. We incorporate by reference the documents listed below which have been filed by us or our predecessor


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California corporation (the “Predecessor Registrant”) and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act until the offering is completed:
 
1. Our Predecessor Registrant’s Annual Report on Form 10-K for the year ended September 30, 2008, as amended;
 
2. Our Predecessor Registrant’s Definitive Proxy Statement on Schedule 14A filed with the SEC on January 9, 2009;
 
3. Our Predecessor Registrant’s Quarterly Report on Form 10-Q for the period ended December 31, 2008 and our Quarterly Reports on Form 10-Q for the periods ended March 31, 2009 and June 30, 2009;
 
4. Our Predecessor Registrant’s Current Reports on Form 8-K filed with the SEC on November 12, 2008 and February 25, 2009 and our Current Reports on Form 8-K filed with the SEC on March 25, 2009, April 2, 2009 and August 11, 2009; and
 
5. The description of our common stock contained in our registration statement on Form 8-A/A (File No. 001-15803) filed with the SEC on March 25, 2009, including any amendment or report filed for the purpose of updating such description.
 
Upon written or oral request, we will provide without charge to each person to whom a copy of the prospectus is delivered a copy of the documents incorporated by reference herein (other than exhibits to such documents unless such exhibits are specifically incorporated by reference herein). You may request a copy of these filings, at no cost, by writing or telephoning us at the following address: Avanir Pharmaceuticals, Inc., 101 Enterprise, Suite 300, Aliso Viejo, California 92656, Attention: Investor Relations, telephone: (949) 389-6700. We have authorized no one to provide you with any information that differs from that contained in this prospectus. Accordingly, you should not rely on any information that is not contained in this prospectus. You should not assume that the information in this prospectus is accurate as of any date other than the date of the front cover of this prospectus.
 
WHERE YOU CAN FIND MORE INFORMATION
 
We are subject to the informational requirements of the 1934 Act and in accordance therewith file reports, proxy statements and other information with the Securities and Exchange Commission. Our filings are available to the public over the Internet at the Securities and Exchange Commission’s website at www.sec.gov, as well as at our website at www.avanir.com. You may also read and copy, at prescribed rates, any document we file with the Securities and Exchange Commission at the Public Reference Room of the Securities and Exchange Commission located at 100 F Street, N.E., Washington, D.C. 20549. Please call the Securities and Exchange Commission at (800) SEC-0330 for further information on the Securities and Exchange Commission’s Public Reference Rooms.
 
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10,000,000 Shares
 
 
(AVANIR LOGO)
 
 
Common Stock
 
 
Prospectus Supplement
 
 
Sole Book-Running Manager
Jefferies & Company
 
Co-Manager
Canaccord Adams
 
 
May 6, 2010