Camrelizumab Plus Apatinib in Patients With High-risk Gestational Trophoblastic Neoplasia

Cohort A: Camrelizumab (200 mg q2w iv) concomitantly with apatinib (250 mg qd po) and EMA/CO \[etoposide, methotrexate, actinomycin D/cyclophosphamide, vincristine\] every 2 weeks. For certain patients with high tumor burden, 1-2 cycles of low-dose chemotherapy (actinomycin D 500 ug and etoposide 100mg/m2, D1-3) will be administered, then followed by EMA/CO. The observation period is 14 days.

Cohort B: Camrelizumab (200 mg q3w iv) concomitantly with apatinib (250 mg qd po) and multi-drug chemotherapy. The multi-drug chemotherapy regimen will be chosen by the investigator (chemotherapy regimen: EMA/CO \[etoposide, methotrexate, actinomycin D/cyclophosphamide, vincristine\]; or EMA/EP \[etoposide, methotrexate and actinomycin-D/etoposide, cisplatin\]; or FAEV \[floxuridine, actinomycin-D, etoposide, vincristine\]). The observation period is 21 days.