NCT06775652

Neoadjuvant Chemoradiotherapy Plus Surgery vs. Surgery Plus Adjuvant Therapy for ESCC

Neoadjuvant Chemoradiotherapy Plus Surgery vs. Surgery Plus Adjuvant Therapy for Esophageal Squamous Cell Carcinoma: A Prospective, Randomized Phase III Clinical Trial

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 254 (actual)
• Sponsor: Yongtao Han · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

This phase III randomized clinical trial compared the long-term survival and safety of neoadjuvant chemoradiotherapy (NCRT) followed by surgery versus surgery with adjuvant therapy (AT) in patients with locally advanced esophageal squamous cell carcinoma (ESCC). Conducted at Sichuan Cancer Hospital, patients were randomly assigned to receive either NCRT (chemotherapy and radiotherapy followed by surgery) or AT (surgery followed by adjuvant therapy based on staging). The primary outcome was overall survival (OS), with secondary outcomes including disease-free survival (DFS), R0 resection rates, and treatment-related toxicity. A total of 245 patients were randomized, and 224 patients were included in the final analysis.

Detailed description

This study is a prospective, randomized, open-label, phase III clinical trial conducted at Sichuan Cancer Hospital, a high-volume cancer center in China. The primary objective is to compare the long-term survival outcomes of neoadjuvant chemoradiotherapy (NCRT) combined with surgery versus surgery followed by adjuvant therapy (AT) in patients with locally advanced esophageal squamous cell carcinoma (ESCC). Patients with histologically confirmed, resectable, locally advanced thoracic ESCC (staged according to the 8th edition of the AJCC TNM classification) were enrolled and randomized in a 1:1 ratio to the NCRT or AT group. The NCRT group received intensity-modulated radiotherapy (40 Gy in 20 fractions) combined with paclitaxel and carboplatin, followed by surgery. The AT group underwent surgery first, followed by adjuvant therapy (chemotherapy or chemoradiotherapy) determined by postoperative pathological staging based on the 2018 NCCN Guidelines for Esophageal and Esophagogastric Junction Cancers. The study's primary endpoint is overall survival (OS). Secondary endpoints include disease-free survival (DFS), R0 resection rate, pathological complete response (pCR) rate, treatment-related toxicity, and postoperative complications. Safety was assessed based on the Common Terminology Criteria for Adverse Events (CTCAE) and the Clavien-Dindo classification for surgical complications. A total of 245 patients were randomized, with 116 patients in the NCRT group and 108 in the AT group achieving R0 resection and included in the final analysis. Kaplan-Meier survival analysis and Cox proportional hazards models were employed to evaluate OS and DFS. This trial seeks to provide high-quality evidence for optimizing treatment strategies in locally advanced ESCC and to highlight the significance of achieving pathological response as a predictor of improved survival. Future studies with larger sample sizes and multi-center participation are needed to validate these findings.

Conditions

• Esophageal Squamous Cell Carcinoma (ESCC)

Interventions

Type	Name	Description
DRUG	Neoadjuvant Chemoradiotherapy	Patients assigned to the NCRT group received intravenous paclitaxel (135 mg/m²) and carboplatin (AUC=2-5) on day 1, administered every three weeks for two cycles. Concurrently, they received intensity-modulated radiotherapy (IMRT) with a total of 20 sessions (CTV 40 Gy, GTV 44 Gy) five days per week. All radiotherapy plans were reviewed by designated radiation oncologists before treatment to ensure quality control. Patients were assessed 4 to 6 weeks after completing NCRT following RECIST 1.1 criteria.
PROCEDURE	Adjuvant therapy	Patients in the AT group received surgery as soon as possible after randomization, followed by adjuvant therapy, postoperative adjuvant therapy based on pathological staging, as recommended by the NCCN Clinical Practice Guidelines for Esophageal and Esophagogastric Junction Cancers (2017 V4), starting one month post-surgery with either adjuvant chemotherapy or chemoradiotherapy. The adjuvant chemotherapy regimen was the same as the neoadjuvant chemotherapy regimen, and the adjuvant radiotherapy regimen and dose were administered according to guideline recommendations.
PROCEDURE	Surgery	Surgery

Timeline

• Start date: 2018-01-01
• Primary completion: 2020-12-31
• Completion: 2024-07-31
• First posted: 2025-01-15
• Last updated: 2025-01-15

Locations

1 site across 1 country: China