The study will be conducted in 2 parts.The first stage is a single-arm clinical trial, and the second stage is a controlled clinical trial.
The purpose of this study is to evaluate the efficacy and safety of PD-1 Inhibitor (QL1604) plus chemotherapy in patients with Stage Ⅳ, recurrent, or metastatic cervical cancer. Possible chemotherapy regimens include: paclitaxel plus cisplatin and paclitaxel plus carboplatin.