Item 8.01. Other Events.

On June 25, 2009, MediciNova, Inc. ("MediciNova") and Avigen, Inc. ("Avigen") issued a press release (the "Press Release") announcing that they have confirmed their understanding of certain key terms for a proposed acquisition of Avigen by MediciNova that would combine the companies' clinical development programs based on ibudilast. The understanding reached by the parties is nonbinding and subject to the negotiation and execution of definitive documentation and completion of due diligence. The closing of any proposed merger would also be subject to customary closing conditions, including required shareholder and regulatory approvals and the absence of material adverse changes. A copy of the Press Release is attached hereto as Exhibit 99.1.

The information in this Current Report on Form 8-K being provided under this Item 8.01, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed "filed" for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release dated June 25, 2009.

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