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CLINICAL TRIAL
COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
A prospective randomized comparison of methotrexate, dactinomycin, and chlorambucil versus methotrexate, dactinomycin, cyclophosphamide, doxorubicin, melphalan, hydroxyurea, and vincristine in "poor prognosis" metastatic gestational trophoblastic disease: a Gynecologic Oncology Group study.
Obstetrics and Gynecology 1989 March
In 1981, the Gynecologic Oncology Group initiated a prospective randomized study in which patients with poor-prognosis gestational trophoblastic disease received either standard MAC chemotherapy (methotrexate, dactinomycin, and chlorambucil) or the modified CHAMOMA regimen (methotrexate, dactinomycin, cyclophosphamide, doxorubicin, melphalan, hydroxyurea, and vincristine). The protocol was closed in May 1986 because the modified CHAMOMA regimen was significantly more toxic and possibly less effective. There were 42 patients entered, with 22 receiving MAC and 20 receiving modified CHAMOMA. There have been six deaths due to disease in the modified CHAMOMA group and none in the MAC group. Five MAC failures and one modified CHAMOMA failure have been rescued by surgery and/or chemotherapy. All six of the patients who died on the modified CHAMOMA regimen had developed disease following a previous term pregnancy, but none had prior chemotherapy. All seven patients who were treated for gestational trophoblastic disease after term pregnancy in the MAC group were cured of disease. With the modified CHAMOMA regimen, 44% of patients had life-threatening hematologic toxicity, as compared with only 9% of the MAC patients. Thus, the standard MAC regimen appears to be at least equally effective and much less toxic than the modified CHAMOMA regimen, indicating a more favorable therapeutic index.
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