Background. Immune checkpoint inhibitors have considerably changed the treatment paradigm for metastatic cervical cancer; nonetheless, only a proportion of patients achieve a durable response. Therefore, exploring the predictive biomarkers of immunotherapy response is of crucial importance. This study aimed to evaluate the predictive and prognostic value of hematological parameters in patients with metastatic cervical cancer treated with combination immunotherapy. Methods. Clinical data of patients with metastatic cervical cancer treated with combination immunotherapy between June 2019 and April 2021 were retrospectively analyzed. Receiver operating characteristic curve analysis was performed to determine the cut-off values of continuous variables, and binary logistic analysis was conducted to compare the treatment response between groups. The Kaplan–Meier method was applied for survival analysis. A Cox proportional hazards regression model was used to identify factors associated with progression-free survival (PFS). Results. Seventy patients were included in this study. The cut-off values for the neutrophil-to-lymphocyte ratio (NLR) and lactate dehydrogenase (LDH) were 5.33 and 195.00 U/L, respectively. High pretreatment NLR (≥5.33) was correlated with decreased objective response rate (53.19% vs. 78.26%, p = 0.048 ). The survival analysis revealed that high pretreatment NLR (hazard ratio HR = 2.401 , 95% confidence interval [CI]: 1.151–5.009, p = 0.020 ) and LDH level ( HR = 1.987 , 95% CI: 1.029–3.835, p = 0.041 ) were independent prognostic factors associated with short PFS. Conclusions. Our study suggested that high pretreatment NLR and LDH values were independently correlated with poor survival in patients with metastatic cervical cancer treated with combination immunotherapy. Pretreatment NLR and LDH values could serve as potential biomarkers that may aid in the selection of patients who would benefit from combination immunotherapy. Further prospective studies investigating the prognostic value of NLR and LDH are warranted. Trial registration number: UHCT22008.
Purpose Programmed cell death protein 1 (PD-1) inhibitors have shown a therapeutic effect in the treatment of advanced cervical cancer in clinical trials. However, the clinical characteristics associated with response remain undetermined. This study aimed to evaluate the efficacy and prognostic factors of PD-1 inhibitors in patients with advanced cervical cancer in clinical practice. Patients and Methods The study enrolled patients with recurrent or metastatic cervical cancer treated with PD-1 inhibitors at our center between March 2018 and November 2020. The primary outcomes were the objective response rate (ORR) and progression-free survival (PFS). Secondary endpoints were overall survival (OS) and safety. In addition, independent prognostic factors were identified by multivariate regression analysis. Results A total of 102 patients were included, and the ORR and disease control rate (DCR) were 51.0% and 66.7%, respectively. Median PFS was 11.0 months (95% CI, 1.7–20.4), while median OS was not achieved. Multivariate analysis indicated that factors associated with a better prognosis (ORR and PFS) included squamous cell carcinoma, a time to recurrence >6 months, and PD-1 plus chemotherapy and anti-angiogenic drugs ( p < 0.05). Lines of therapy were independent factors for ORR but not for PFS. We also observed a tendency for longer PFS in patients with lung metastases and lymph node metastases only. Treatment-related adverse events (AEs) were well tolerated and primarily included thrombocytopenia, hepatic dysfunction, anemia, and leukopenia. Conclusion PD-1 inhibitors demonstrated beneficial efficacy and safety in advanced cervical cancer, particularly for patients with squamous cell carcinoma, a time to recurrence >6 months, or PD-1 plus chemotherapy and anti-angiogenic drugs. Further studies are needed to confirm the long-term outcomes.
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.
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