Comparing surgery and radiation for early-stage esophageal cancer

Adjuvant Esophagectomy Versus Chemoradiation for Patients With Clinical Stage N0 and Pathological Stage T1b (After Endoscopic Submucosal Dissection, ESD) Esophageal Squamous Cell Carcinoma (Ad-ESD Trial): a Multicentric, Open Label, Randomized Trial

Phase 3 Interventional Shanghai Chest Hospital · NCT04135664

This study is testing whether surgery or radiation works better for people with early-stage esophageal cancer to help them live longer and have a better quality of life.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment176 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorShanghai Chest Hospital Academic / other
Locations6 sites (Nanchang, Jiangxi and 5 other locations)
Trial IDNCT04135664 on ClinicalTrials.gov

What this trial studies

This phase III trial aims to compare the effectiveness of esophagectomy versus chemoradiation in patients with clinical stage N0 and pathological stage T1b esophageal squamous cell carcinoma following endoscopic submucosal dissection. It is a multi-center, randomized trial that includes two treatment arms: one receiving esophagectomy and the other receiving chemoradiation. Additionally, there is a registry arm for patients and surgeons who prefer not to be randomized. The primary goal is to assess the 5-year overall survival rate between the two treatment options, while secondary outcomes include quality of life and relapse-free survival rates.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-75 with biopsy-proven esophageal squamous cell carcinoma at clinical N0 and pathological T1b stages.

Not a fit: Patients with prior treatments for esophageal cancer or other primary tumors, distant metastasis, or those unable to understand informed consent may not benefit from this study.

Why it matters

Potential benefit: If successful, this trial could provide a less invasive treatment option with improved quality of life for patients with early-stage esophageal cancer.

How similar studies have performed: Previous studies have indicated promising outcomes for chemoradiation in similar patient populations, but this specific comparison in a phase III setting is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Biopsy proven with esophageal squamous cell cancer.
* Clinical N0 stage diagnosed by imaging examinations.
* Pathological T1b stage confirmed by endoscopic submucosal dissection.
* Age: 18-75.
* Tumor located at the thorax.
* Performance status Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
* Written informed consent.

Exclusion Criteria:

* Prior intervention treatment before endoscopic submucosal resection.
* Inability to accept any treatment component.
* Prior intervention (surgery, chemoradiation, et al.) for other primary tumor disease.
* Distant metastasis.
* The circumference of the lumen over 3/4
* Main tumor size \> 5cm assessed by endoscopy
* Inability to understand the informed consent.

Where this trial is running

Nanchang, Jiangxi and 5 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Esophageal Canceresophagectomychemoradiationesophageal cancerendoscopic submucosal dissection
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.