<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM 10Q 3/31/99
IN THOUSANDS
</LEGEND>
<CIK> 0000874384
<NAME> CAMBRIDGE NEUROSCIENCE, INC.
<MULTIPLIER> 1
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                              JAN-1-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                           5,004
<SECURITIES>                                     7,264
<RECEIVABLES>                                      212
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                13,365
<PP&E>                                             329
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  13,694
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            18
<OTHER-SE>                                      12,714
<TOTAL-LIABILITY-AND-EQUITY>                    13,694
<SALES>                                              0
<TOTAL-REVENUES>                                   552
<CGS>                                                0
<TOTAL-COSTS>                                    1,558
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (1,006)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,006)
<EPS-PRIMARY>                                    (.06)
<EPS-DILUTED>                                    (.06)