Anthera
May 6, 2010

Anthera Issues First Quarter 2010 Financial Report

HAYWARD, Calif., May 6, 2010 /PRNewswire via COMTEX News Network/ -- Anthera Pharmaceuticals, Inc. (Nasdaq: ANTH), today issued its first quarter 2010 financial report.

Financial Results

Total operating expenses for the first quarter ended March 31, 2010, were $6.5 million, as compared to $3.8 million for the same period in 2009. The increase in operating expenses was primarily the result of a $3.5 million non-cash charge related to milestone payments recorded in connection with the initiation of the Company's Phase 3 clinical study of A-002 - VISTA-16 (Vascular Inflammation Suppression to Treat Acute Coronary Syndrome - 16 Weeks), which were paid through the issuance of 531,914 shares of common stock. Anthera's operating expenses also were driven by an increase in professional service expenses related to the Company's financial audit and other costs associated with operating as a public company. The increases in milestone payments and G&A expense were offset by a decrease in clinical study expenses due to the completion of Anthera's Phase 2b clinical study of A-002 - FRANCIS (Fewer Recurrent Acute Coronary Events with Near-term Cardiovascular Inflammation Suppression) in acute coronary syndrome patients with high levels of inflammation and dislipidemia.

For the first quarter ended March 31, 2010, Anthera reported a net loss of $11.1 million, or $0.83 per share, as compared to a net loss of $3.8 million, or $2.57 per share, for the same period in 2009. The increase in net loss was primarily the result of $8.0 million in non-cash charges consisting of the $3.5 million milestone payment noted above and a $4.5 million non-cash charge recorded as part of interest and other expense related to the amortization of discounts on the Company's convertible promissory notes and the mark- to-market adjustment relating to warrants and embedded derivative connected to the Company's convertible promissory notes. These convertible promissory notes were converted into shares of Anthera's common stock upon the completion of the Company's initial public offering (IPO) at a 25% discount to the IPO price. The conversion discount is the primary driver for the $4.5 million non-cash charge recorded in the current quarter.

Anthera ended the first quarter of 2010 with $56.7 million in cash and cash equivalents, primarily as a result of completing its IPO on March 4, 2010 and a private placement of common stock to certain existing investors.

Recent Business Highlights

Financial

Regulatory

Clinical

Manufacturing

Management

In conjunction with the release of the first quarter 2010 financial report, Anthera will host a conference call at 5 pm Eastern Time today, May 6, 2010. U.S. and Canadian participants may dial (877) 312-8807; international participants may dial (253) 237-1190. The conference passcode is 70784350. To access the 24-hour audio replay, U.S. and Canadian participants may dial (800) 642-1687; international participants may dial (706) 645-9291. The conference ID for the replay is 70784350. The audio replay will be available until May 13, 2010. This conference call will be webcast live and archived on Anthera's website until May 6, 2011, www.anthera.com.

About Anthera Pharmaceuticals

Anthera Pharmaceuticals is a biopharmaceutical company focused on developing and commercializing products to treat serious diseases associated with inflammation, including cardiovascular and autoimmune diseases. Anthera has one Phase 3-ready clinical program, A-002, and two Phase 2 clinical programs, A-623 and A-001. A-002 and A-001 inhibit a novel enzyme target known as sPLA2. Elevated levels of sPLA2 have been implicated in a variety of acute inflammatory conditions, including acute coronary syndrome and acute chest syndrome, as well as chronic diseases such as stable coronary artery disease (CAD). Anthera's Phase 2 product candidate, A-623, targets elevated levels of B-lymphocyte stimulator, or BLyS, which has been associated with a variety of B-cell mediated autoimmune diseases, including systemic lupus erythematosus, or lupus. For more information, please visit www.anthera.com.

Safe Harbor Statement

Any statements contained in this press release that refer to future events or other non-historical matters are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These include, but are not limited to, statements relating to the anticipated initiation of Anthera's clinical studies, anticipated duration and expected results of these studies, and the progression of Anthera's products through future stages of clinical development. These forward-looking statements are based on Anthera's expectations as of the date of this press release and are subject to certain risks and uncertainties that could cause actual results to differ materially as set forth in the Company's public filings with the Securities and Exchange Commission, including Anthera's final prospectus relating to its initial public offering filed pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on March 2, 2010. Anthera disclaims any intent or obligation to update any forward-looking statements, whether because of new information, future events or otherwise, except as required by applicable law.

CONTACT: Juliane Snowden of Burns McClellan, Inc., jsnowden@burnsmc.com or 212.213.0006.




                                                ANTHERA PHARMACEUTICALS,
                                                          INC.
                                                  A Development Stage
                                                        Company
                                                STATEMENT OF OPERATIONS
                                                      (unaudited)

                                                Three Months Ended March
                                                           31,
                                               -------------------------
                                                    2010               2009
                                                    ----               ----
    OPERATING EXPENSE:
               Research and development       $5,241,814         $2,914,766
               General and administrative      1,224,110            846,243
                                               ---------            -------
               Total operating expense         6,465,924          3,761,009
                                               ---------          ---------
    LOSS FROM OPERATIONS:                     (6,465,924)        (3,761,009)
                                              ----------         ----------
    OTHER INCOME (EXPENSE):
               Interest and other income           3,301             13,046
               Interest and other expense     (4,641,169)           (37,397)
                                              ----------            -------
               Total other income
                (expense)                     (4,637,868)           (24,351)
                                              ----------            -------
    NET LOSS                                $(11,103,792)       $(3,785,360)
                                            ============        ===========
               Net loss per share--
                basic and diluted                 $(0.83)            $(2.57)
                                                  ======             ======
               Weighted-average number
                of shares used in             13,344,231          1,470,722
               per share calculation--
                basic and diluted             ==========          =========




                                              ANTHERA PHARMACEUTICALS,
                                                         INC.
                                                 A Development Stage
                                                       Company
                                                 BALANCE SHEET DATA
                                                     (unaudited)

                                             March 31,        December 31,
                                                    2010               2009
                                                    ----               ----

    Cash and cash equivalents                $56,661,609         $3,803,384
    Total assets                             $57,036,331         $5,888,789
    Total notes payable                               $-        $13,129,877
    Total warrant and
     derivative liabilities                           $-           $406,130
    Total current liabilities                 $4,304,457        $18,167,645
    Deficit accumulated during
     development stage                      $(76,333,744)      $(65,229,952)
    Total shareholders' equity
     (deficit)                               $52,731,874       $(12,278,856)

    Common shares outstanding                 21,589,588          1,566,199
    Preferred shares
     outstanding                                       -          8,146,308






SOURCE Anthera Pharmaceuticals, Inc.

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