Post-operative Radiotherapy After Neodjuvant Chemo-immunotherapy and Surgery in Stage III NSCLC (RESCUE)

August 13, 2026 updated by: Centre hospitalier de l'Université de Montréal (CHUM)

Radiotherapy to Optimize Event-free Survival Following Chemo-Immunotherapy and Surgery in Upper Stage III NSCLC With Evidence of Pathological Residual Disease (RESCUE): Phase II Trial

This study investigates whether postoperative radiotherapy (PORT) improves outcomes for patients with stage III non-small cell lung cancer (NSCLC) who have residual disease after neoadjuvant chemo-immunotherapy and surgery. The primary objective is to compare event-free survival (EFS) between patients receiving PORT targeting involved lymph node regions and those without PORT. Secondary and tertiary endpoints include overall survival, locoregional and distant control, toxicity, and quality of life. The phase II randomized trial will enroll 118 patients, stratifying by adjuvant immunotherapy use, with follow-up extending up to 5 years. Statistical analysis aims to detect a 15% improvement in 2-year EFS, with a total study duration of 7 years.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
118

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Canada
    • Quebec
      • Montreal, Quebec, Canada, H4C 3N4
        • Recruiting
        • Centre Hospitalier de l'Université de Montréal
        • Contact:
        • Contact:
          • Eva-Sabrina Nkurunziza

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Participants must be ≥ 18 years old
  2. Ability to provide written informed consent
  3. ECOG performance status 0-2
  4. Histologically confirmed NSCLC
  5. Absence of actionable driver mutation (EGFR/ALK/ROS)
  6. Complete preoperative imaging staging, including: FDG-PET and brain imaging to exclude distant metastases will be mandatory.
  7. Baseline clinical or post-operative pathological stage III including specifically stage T1-4N2-3
  8. Completion of 2-4 cycles of neoadjuvant chemo-IO, regardless of the specific immunotherapy and chemotherapy used.
  9. Status post-complete (R0) surgical resection with mediastinal lymph node dissection.
  10. Residual nodal disease on final pathology specimen (i.e. absence of pathological complete response).
  11. Postoperative lung function examination: FEV1 > 1 L (or greater than 35% expected value)

Exclusion Criteria:

  1. Pregnant individuals
  2. Previous chest radiotherapy
  3. >24 weeks after thoracic surgery
  4. History of other non-cutaneous neoplasms within the last 24 months
  5. Active grade ≥ 2 pneumonitis.
  6. Presence of interstitial lung disease
  7. Recurrence or metastasis occurred
  8. Medical conditions that hinders the safe administration of radiotherapy or follow-up.

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Post-operative radiotherapy
Mediastinal PORT (40 Gy in 15 fractions) within 24 weeks from thoracic surgery
Radiation: Post-operative radiotherapy
Mediastinal post-operative radiotherapy to a dose of 40 Gy in 15 fractions
No Intervention: No post-operative radiotherapy
No post-operative radiotherapy (PORT)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Disease-free Survival
Time Frame: Defined as the time from random assignment to loco-regional or distant recurrence, or death from any cause, assessed up to 60 months.
Defined as the time from random assignment to loco-regional or distant recurrence, or death from any cause, assessed up to 60 months.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Overall Survival
Time Frame: Time from random assignment to death from any cause, assessed up to 60 months.
Time from random assignment to death from any cause, assessed up to 60 months.
Grade 3 Toxicity
Time Frame: Classified as early (within the first 3 months) or late (after 3 months), assessed up to 60 months.
Classified as early (within the first 3 months) or late (after 3 months), assessed up to 60 months.
Locoregional control
Time Frame: Time from random assignment to locoregional recurrence, proven radiologically and/or pathologically, assessed up to 60 months.
Time from random assignment to locoregional recurrence, proven radiologically and/or pathologically, assessed up to 60 months.
Distant metastasis free survival
Time Frame: Time from random assignment to distant recurrence, proven radiologically and/or pathologically, or death from any cause, assessed up to 60 months.
Time from random assignment to distant recurrence, proven radiologically and/or pathologically, or death from any cause, assessed up to 60 months.

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Centre hospitalier de l'Université de Montréal (CHUM)

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 29, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2032

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 4, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 14, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 14, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 13, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RESCUE

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

IPD includes anonymized individual participant data collected throughout the course of the study and may include the analyzable data set.

IPD Sharing Time Frame

study completion date, up to 60 months.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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.

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