Relapsed or refractory gestational trophoblastic neoplasia treated with the etoposide and cisplatin/etoposide, methotrexate, and actinomycin D (EP-EMA) regimen.
OBJECTIVE
To evaluate the effectiveness of the etoposide and cisplatin/etoposide, methotrexate and actinomycin D (EP-EMA) regimen in patients with gestational trophoblastic neoplasia who had been successfully treated with the etoposide, methotrexate, and actinomycin D/cyclophosphamide and vincristine (EMA-CO) regimen but experienced a relapse, or who became refractory to EMA-CO treatment.


METHODS
From January 1999 to December 2005, 18 patients with gestational trophoblastic neoplasia who had been successfully treated with the EMA-CO regimen but sustained a relapse (n=7) or who became refractory to it (n=11) were treated with the EP-EMA regimen. The effectiveness, adverse effects, and tolerated dose intensity of the EP-EMA regimen were retrospectively analyzed.


RESULTS
The 18 patients received a total of 74 cycles of the EP-EMA regimen and 12 (66.7%) achieved complete remission. Nine of the 11 patients (81.8%) apparently resistant to the EMA-CO regimen achieved complete remission. However, only 3 of the 7 patients (42.9%) who experienced a relapse after treatment with the EMA-CO regimen achieved complete remission. The main adverse effects of the EP-EMA regimen were myelosuppression and gastrointestinal problems. Because of myelosuppression and hepatotoxicity, only 56.8% of the patients could be treated with the planned dose intensity.


CONCLUSIONS
EP-EMA may be an effective option for the treatment of gestational trophoblastic neoplasia in patients resistant to treatment with the EMA-CO regimen. However, it does not seem to benefit all the patients who experienced a relapse after treatment with the EMA-CO regimen.
Mao
Yuyan
Y
Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Wan
Xiaoyun
X
Lv
Weiguo
W
Xie
Xing
X
D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D001855:Bone Marrow Diseases / Q000139:chemically induced; D056486:Chemical and Drug Induced Liver Injury; D002945:Cisplatin / Q000008:administration & dosage; D003520:Cyclophosphamide; D003609:Dactinomycin / Q000008:administration & dosage; D004305:Dose-Response Relationship, Drug; D005047:Etoposide / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D031901:Gestational Trophoblastic Disease / Q000188:drug therapy*; D006801:Humans; D008727:Methotrexate / Q000008:administration & dosage; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D011247:Pregnancy; D011256:Pregnancy Outcome; D012074:Remission Induction; D012189:Retrospective Studies; D016879:Salvage Therapy; D016896:Treatment Outcome; D014750:Vincristine
D003609:Dactinomycin; D014750:Vincristine; D005047:Etoposide; D003520:Cyclophosphamide; D002945:Cisplatin; D008727:Methotrexate