This is a multicenter, prospective, and randomized phase II clinical trial. Patients assigned to experimental group will receive standard radiotherapy with concomitant cisplatin 40mg/m2 once every week for 5 weeks, combined with tislelizumab (200 mg, day 1) once every 3 weeks until disease progression or intolerable toxicity occurs or one year. Patients assigned to control group will undergo standard radiotherapy with concomitant cisplatin 40mg/m2 once every week for 5 weeks. Compare the efficacy and toxicity of the two regimens in patients with stage IIIC2 cervical cancer.
To evaluate the efficacy and safety of tislelizumab combined with concurrent chemoradiotherapy in first-line treatment of stage IIIC2 cervical cancer.