<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FORM 10Q 6/30/00
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FORM 10Q
</LEGEND>
<CIK> 0000874384
<NAME> CAMBRIDGE NEUROSCIENCE INC.
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<EXCHANGE-RATE> 1
<CASH> 2,614
<SECURITIES> 5,981
<RECEIVABLES> 30
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 9,351
<PP&E> 233
<DEPRECIATION> 0
<TOTAL-ASSETS> 9,584
<CURRENT-LIABILITIES> 1,470
<BONDS> 0
0
0
<COMMON> 18
<OTHER-SE> 8,096
<TOTAL-LIABILITY-AND-EQUITY> 9,584
<SALES> 0
<TOTAL-REVENUES> 645
<CGS> 0
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 2,830
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (1,913)
<INCOME-TAX> 0
<INCOME-CONTINUING> (1,913)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (1,913)
<EPS-BASIC> (0.11)
<EPS-DILUTED> (0.11)
</TABLE>