FOR IMMEDIATE RELEASE
AUTOIMMUNE INC. REPORTS 2004 SECOND QUARTER FINANCIAL RESULTS

Pasadena, California, August 11, 2004 - AutoImmune Inc. (OTCBB: AIMM) today reported a net loss of $0.30 million, or $0.02 per share basic and diluted, for the three months ended June 30, 2004, compared with net loss of $0.14 million, or $0.01 per share basic and diluted, for the three months ended June 30, 2003. For the six months ended June 30, 2004, the net loss was $0.47 million, or $0.03 per share basic and diluted, compared with net income of $0.89 million, or $0.05 per share basic and diluted for the same period in 2003. Results for the six months ended June 30, 2003 reflect receipt of the final payment in March 2003 from a subsidiary of Elan Corporation plc for its purchase of AutoImmune's rights to certain patent applications. As of June 30, 2004, the Company reported $10.3 million in cash and marketable securities as compared to $10.7 million in cash and marketable securities as of December 31, 2003.

Robert C. Bishop, Ph.D., Chairman of the Board and Chief Executive Officer stated, "During the second quarter, AutoImmune completed its transition to trading on the OTC Bulletin Board. The Company's licensees are progressing toward the start of new clinical trials and our joint venture for the manufacture, marketing and sale of Colloral® as a nutritional supplement continued efforts to expand sales although progress to date has been limited." Under the currently applicable accounting model, AutoImmune will begin to recognize income from the joint venture when profits exceed cumulative start-up costs.

AutoImmune has exclusively licensed certain of its intellectual property rights to BioMS, a Canadian company. Under the license agreement, BioMS makes monthly diligence payments to AutoImmune and has a royalty obligation on sales of MBP8298 should it reach the market. On June 7, 2004, BioMS reported it received Health Canada clearance to begin a Phase II/III human clinical trial of its lead drug, MBP8298, a treatment for secondary progressive multiple sclerosis, which utilizes the intellectual property rights licensed from AutoImmune. It is expected this pivotal trial will begin within the next several months.

AutoImmune has also exclusively licensed certain of its intellectual property rights to Teva Pharmaceutical Industries, Ltd. Teva is expected to start new human clinical studies on an oral formulation of COPAXONE® (glatiramer acetate), a product for the treatment of multiple sclerosis. The oral formulation utilizes the intellectual property rights licensed from AutoImmune. If Teva is successful in bringing this product to market, AutoImmune will receive both a milestone payment and a royalty on sales under its license agreement.

AutoImmune is a biopharmaceutical company involved in the development of a new class of mucosally administered therapies for the treatment of autoimmune and cell-mediated inflammatory diseases and conditions.

This release contains forward-looking statements which involve risks and uncertainties. The Company's actual results may differ significantly from results discussed in the forward-looking statements due to a number of important factors, including, but not limited to the uncertainties of clinical trial results, the Company's dependence on third parties for licensing revenue, and the risks of technological change and competition. These factors are more fully discussed in the Company's most recent Annual Report on Form 10-K filed with the Securities and Exchange Commission in the section "Business-Factors to be Considered." The discussion in the Annual Report on Form 10-K is hereby referenced into this release.

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Contact:
Robert C. Bishop, Ph.D.
Chairman and Chief Executive Officer
AutoImmune Inc.
626-792-1235
website: http://www.autoimmuneinc.com

AutoImmune Inc.
1199 Madia Street
Pasadena, CA 91103
Phone: 626-792-1235
Fax: 626-792-1236

AUTOIMMUNE INC.
STATEMENT OF OPERATIONS
(Unaudited)
  Three months ended June 30, Three months ended June 30,
  2003 2004 2003 2004
 
Revenue $23,000 $30,000 $1,390,000 $60,000
 
Costs and expenses:  
    Research and development 33,000 146,000 171,000 204,000
    General and administrative 164,000 214,000 394,000 385,000
        Total costs and expenses 197,000 360,000 565,000 589,000
 
Interest income 32,000 30,000 66,000 61,000
Equity in net loss of unconsolidated affiliate - - - -
Other expense - - - -
  32,000 30,000 66,000 61,000
 
Net income (loss) (142,000) (300,000) 891,000 (468,000)
 
Net income (loss) per share - basic (0.01) (0.02) 0.05 (0.03)
 
Net income (loss) per share - diluted (0.01) (0.02) 0.05 (0.03)
 
Weighted average common shares  
    outstanding - basic 16,919,623 16,919,623 16,919,623 16,919,623
 
Weighted average common shares  
    outstanding - diluted $16,919,623 $16,919,623 $17,183,205 $16,919,623


CONDENSED BALANCE SHEET
(Unaudited)
  December 31, June 30,
  2003 2004
Cash and marketable securities $10,744,000 $10,265,000
Other current assets 35,000 81,000
    Total assets 10,779,000 10,346,000
 
Current liabilities 84,000 128,000
Total stockholder's equity 10,695,000 10,218,000
 
Total liabilities and equity $10,799,000 $10,346,000