Background: Gestational trophoblastic neoplasia (GTN) is a tumor known to be sensitive to chemotherapy. However, a subset of patients still develop resistance to the primary intensive chemotherapy. Objective: This study aimed to determine the risk factors for multidrug resistance among high-risk metastatic GTN patients at University of the Philippines–Philippine General Hospital from January 2014 to December 2018. Materials and Methods: A case–control study involving 111 high-risk metastatic GTN patients who underwent primary intensive chemotherapy Etoposide Methotrexate Actinomycin Cyclophosphamide Oncovin (EMACO) was done at the Philippine General Hospital from January 2014 to December 2018. The medical records of eligible patients were retrieved and reviewed. A comparison of the profile between patients who achieved remission (controls) and those who exhibited chemoresistance (cases) to the EMACO regimen was done. Stepwise logistic regression analysis and Cox's proportional hazards regression were used to determine the significant risk factors that could predict EMACO chemoresistance among these high-risk patients. Results: The cases and controls were comparable in terms of their clinicodemographic profiles. Adjusting for confounders, multivariate analysis showed that the number of metastasis, FIGO stage, and World Health Organization (WHO) prognostic scores were all predictors of survival. Using the fitted logistic regression model, the accuracy of predicted death and survival was 85.16%. Conclusions The pretreatment serum beta-human chorionic gonadotropin level, number of metastasis, tumor size, FIGO stage, and WHO prognostic score were significant predictors of treatment failure. A higher number of metastatic lesions, stage, and WHO prognostic scores indicated poor survival.
Gestational Trophoblastic Disease ; Drug Resistance, Multiple ; Risk Factors

Gestational trophoblastic neoplasia (GTN) with a concurrent cervical malignancy is very rare, making the case both a diagnostic dilemma and a therapeutic challenge. Currently, there has only been one reported case worldwide. We present a case of GTN Stage I:11 with non‑keratinizing squamous cell carcinoma of the cervix Stage II‑B. Initial treatment, in the form of chemotherapy, was directed toward the GTN, as this appeared to be the more aggressive disease. Surgery was not feasible during diagnosis due to the cervical carcinoma. However, the GTN proved resistant to chemotherapy due to the increasing beta human chorionic gonadotropin titers. An attempt to decrease the size of the cervix for surgery to be possible through chemoradiation was instituted, but due to complications and tumor progression to the lungs, she succumbed to the malignancy.
Uterine Cervical Neoplasms ; Gestational Trophoblastic Disease