Adjuvant Radiotherapy for Stage II/III Thymoma After Complete Resection

April 22, 2026 updated by: Kailiang Wu, Fudan University

An Open-label, Multi-center, Randomized Phase III Study of Adjuvant Radiotherapy for Stage II/III Thymoma After Complete Resection

This study is designed to investigate whether adjuvant radiotherapy after complete resection has a better survival for stage II or III thymoma.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

It is confirmed by many studies that patients of thymoma with complete resection have better prognosis than those with either incomplete resection or without surgery. However,whether patients with stage II or III thymoma could benefit from adjuvant radiotherapy after complete resection remains controversial. The purpose of this study is to investigate whether adjuvant radiotherapy after complete resection can improve survival for stage II or III thymoma.

Study Type

Interventional

Enrollment (Estimated)

238

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • China
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 20032
        • Recruiting
        • Kailiang Wu
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

18~75 years old; Eastern Cooperative Oncology Group performance status of 0 to 2; Pathologically confirmed masaoka stage II or III thymoma; Have adequate bone marrow, hepatic, and renal function; Patients receive complete resection within 3 months; Written informed consent.

Exclusion Criteria:

Patients with distant metastases; Patients underwent radiotherapy or chemotherapy; Patients who have malignancy history excluding carcinoma in situ of cervix in the previous five years; Active clinical pulmonary infection; Pregnant or nursing.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: radiotherapy group
complete resection and adjuvant radiotherapy
Radiation: adjuvant radiotherapy
50Gy/25Fx
Other Names:
  • RT
No Intervention: observation group
complete resection

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
DFS (Disease free survival)
Time Frame: 5 years
from registration to disease progression or death.
5 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
OS(overall survival)
Time Frame: 5 years
from registration to death
5 years
Number of Participants with Treatment- Related Adverse Events as Assessed by CTCAE v4.0
Time Frame: 5 years
Adverse Events Assessed by CTCAE v4.0
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Fudan University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 10, 2018

Primary Completion (Estimated)

December 1, 2029

Study Completion (Estimated)

December 1, 2029

Study Registration Dates

First Submitted

December 15, 2015

First Submitted That Met QC Criteria

December 15, 2015

First Posted (Estimated)

December 17, 2015

Study Record Updates

Last Update Posted (Actual)

April 24, 2026

Last Update Submitted That Met QC Criteria

April 22, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1508151-4

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe