<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                           2,723
<SECURITIES>                                    14,324
<RECEIVABLES>                                       85
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                17,441
<PP&E>                                           9,441
<DEPRECIATION>                                   7,787
<TOTAL-ASSETS>                                  23,597
<CURRENT-LIABILITIES>                            7,549
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                      9,682
<COMMON>                                       138,454
<OTHER-SE>                                   (132,711)<F1>
<TOTAL-LIABILITY-AND-EQUITY>                    23,597
<SALES>                                              0
<TOTAL-REVENUES>                                 1,829
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                 4,335<F2>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               (160)
<INCOME-PRETAX>                                (2,346)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (2,346)
<DISCONTINUED>                                    (31)
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,377)
<EPS-PRIMARY>                                   (0.06)
<EPS-DILUTED>                                   (0.06)
<FN>
<F1>CONSISTS OF ACCUMULATED DEFICIT AND ACCUMULATED OTHER COMPREHENSIVE INCOME.
<F2>CONSISTS OF RESEARCH AND DEVELOPMENT, AND GENERAL AND ADMINISTRATIVE EXPENSES.
</FN>