<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF QUINTILES TRANSNATIONAL CORPORATION FOR THE SIX MONTHS
ENDED JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BE REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                         106,065
<SECURITIES>                                    29,297
<RECEIVABLES>                                  209,015
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               367,323
<PP&E>                                         223,761
<DEPRECIATION>                                  69,632
<TOTAL-ASSETS>                                 708,566
<CURRENT-LIABILITIES>                          214,666
<BONDS>                                        148,769
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           363
<OTHER-SE>                                     318,573
<TOTAL-LIABILITY-AND-EQUITY>                   708,566
<SALES>                                              0
<TOTAL-REVENUES>                               374,065
<CGS>                                                0
<TOTAL-COSTS>                                  334,023
<OTHER-EXPENSES>                                (3,145)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               4,201
<INCOME-PRETAX>                                 38,986
<INCOME-TAX>                                    14,644
<INCOME-CONTINUING>                             24,342
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    24,342
<EPS-PRIMARY>                                     0.34
<EPS-DILUTED>                                     0.33