this clinical trial ( dt7995 ) was designed to evaluate amsacrine ( amsa ) plus cytosine arabinoside ( ara-c ) , vincristine , and prednisone ( oap ) therapy in previously untreated patients with adult acute leukemia and to investigate a new strategy for assignment of patients to treatment using estimated probabilities of complete remission ( ppr ) based on six prognostic factors .
C0042679
vincristine
C0069290
oap