Clinical Efficacy and Safety of Immunotherapy Retreatment in Metastatic Cervical Cancer: A Retrospective Study

PURPOSE: Metastatic cervical cancer has a poor prognosis, and treatment options are limited. Immunotherapy has been used to achieve disease control in patients with cervical cancer; however, the efficacy of immunotherapy retreatment after disease progression is unclear. This study aimed to explore the efficacy and safety of immunotherapy retreatment in metastatic cervical cancer. PATIENTS AND METHODS: We retrospectively reviewed the clinical data of patients with metastatic cervical cancer who underwent immunotherapy retreatment after disease progression following previous immunotherapy from June 2019 to April 2021. RESULTS: Fifteen patients were included in this study. All patients received combination immunotherapy retreatment consisting of camrelizumab, nab-paclitaxel, and apatinib. Four (26.7%) patients achieved partial response while three (20.0%) achieved stable disease. The objective response rate and disease control rate were 26.7% and 46.7%, respectively. The median progression-free survival and overall survival were 3.0 (95% confidence interval: 1.0–5.0) and 8.0 (95% confidence interval: 3.4–12.6) months, respectively. None of the patients discontinued treatment because of intolerable toxicity. CONCLUSION: Our findings suggest that the triplet combination immunotherapy retreatment could be a therapeutic option for patients with metastatic cervical cancer who failed initial immunotherapy.