Effectiveness and safety of first-line pembrolizumab plus chemotherapy in patients with advanced/recurrent or metastatic esophageal squamous cell carcinoma in China: a real-world multicenter study

Autor: Yu Lin, Wenbin Shen, Jinjun Ye, Honglei Luo, Xizhi Zhang, Yuanji Xu, Qin Lin, Wenyang Liu, Yingying Zhang, Yujin Xu, Wei Jiang, Lina Zhao, Anwen Liu, Lei Wu, Hong Ge, Conghua Xie, Kuaile Zhao, Junqiang Chen, Luhua Wang, Qi Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Therapeutic Advances in Medical Oncology, Vol 16 (2024)
Druh dokumentu: article
ISSN: 1758-8359
17588359
DOI: 10.1177/17588359241297092
Popis: Background: There are currently limited real-world data on the effectiveness and safety of first-line pembrolizumab combined with chemotherapy in patients with advanced/recurrent or metastatic esophageal squamous cell carcinoma (ESCC) in China. This study was conducted to address this knowledge gap. Methods: This multicenter retrospective cohort study was conducted at 17 hospitals in China and included adults (⩾18 years) with stage IV primary ESCC, or recurring 6 months after radical radiotherapy/surgery-based combination therapy, who had received first-line pembrolizumab plus chemotherapy. Data were collected from electronic medical records. Endpoints included objective response rate (ORR), disease control rate (DCR) progression-free survival (PFS), overall survival (OS), and safety. Subgroup analyses were conducted to identify patient characteristics and treatment patterns associated with treatment response. Results: In total, 202 patients who had received treatment from 2018 to 2023 were included: 125 (61.9%) newly diagnosed and 77 (38.1%) with recurrence, 181 (89.1%) were male. Pembrolizumab was most commonly combined with paclitaxel + platinum (69.8%) or fluorouracil + platinum (19.3%). After a median follow-up of 22.6 months (95% confidence interval (CI) 20.1–25.4), the ORR and DCR were 60.9% and 87.6% and the median PFS and OS were 10.8 months (95% CI 9.1–13.5) and 17.3 months (95% CI 14.9–19.9), respectively. OS was similar in patients with treatment-naïve and recurrent disease. Among the combination chemotherapy regimens, paclitaxel + platinum was associated with the longest median OS (18.2 months, 95% CI 16.1–22.5). Favorable survival outcomes were observed in patients with oligometastases. No new safety signals were observed. Conclusion: These real-world data indicate that the first-line treatment with pembrolizumab plus chemotherapy is effective and safe in Chinese patients with advanced ESCC and show that paclitaxel + platinum is the most commonly used and most effective partner chemotherapy in China.
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