Study on the Optimal Combination Pattern of the Combined Treatment of Radiotherapy and Immunotherapy for the Abscopal Effect in Non-Small Cell Lung Cancer (NSCLC) With Multiple Metastases

July 11, 2025 updated by: Jianguo Sun, Xinqiao Hospital of Chongqing

An Umbrella Trial of Combining Different Radiotherapy Fractionation Patterns With Immunotherapy for Multiple Metastases of Non-Small Cell Lung Cancer

This study aims to conduct a prospective, multicenter, umbrella clinical study to compare the abscopal effects of different radiotherapy fractionation patterns combined with Benmelstobart, and to explore an efficient and low-toxic treatment strategy for non-small cell lung cancer (NSCLC) with multiple metastases. The main objective is to explore and compare the control rates of abscopal lesions in NSCLC patients with multiple metastases when different radiotherapy fractionation patterns are combined with Benmelstobart.

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.
366

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 Locations

  • China
    • Chongqing
      • Chongqing, Chongqing, China, 400037
        • Recruiting
        • The Second Affiliated Hospital of Army Medical University
        • 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

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:

  • Patient must meet all of the following inclusion criteria to be enrolled in this study:

    1. Non-small cell lung cancer confirmed by pathological histology.
    2. More than 3 metastatic lesions.
    3. No brain metastases or stable lesions.
    4. Negative for driver genes (including EGFR, ALK, ROS, BRAF, MET, RET).
    5. Performance status (PS) score of 0-1, with an expected survival period of more than 3 months.
    6. Age between 18 and 75 years old.
    7. Assessment by PET-CT (including FDG and FMISO, not mandatory).
    8. No contraindications to immunotherapy and radiotherapy.
    9. Signed the informed consent form.

Exclusion Criteria:

  • Patients with any of the following criteria are not eligible for enrollment in this study:

    1. Those with severe dysfunction of important vital organs (heart, liver, kidney).
    2. Those accompanied by other malignant tumors.
    3. Uncontrolled heart diseases or myocardial infarction within the past 6 months.
    4. Those with a history of mental illness.
    5. Other situations in which the researcher deems it inappropriate for the subject to participate in the study.

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: Non-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: Group A
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression, the patient will receive the treatment of 6-10Gy*3-6F plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression and the largest lesion measures between 3 cm and 5 cm, the patient will receive the treatment of 3 Gy * 15 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression and the largest lesion is larger than 5 cm, the patient will receive treatment with Spatial Fractionated Radiotherapy Technique (SFRT) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression, and when the largest lesion is ≤ 3 cm and the patient can maintain the radiotherapy position for 50 minutes, the patient will receive treatment with the hyperfractionated pulsed radiotherapy technique (0.5 Gy * 16 * 6 fractions) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, Benmelstobart is continued for maintenance treatment.
Experimental: Group B
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression, the patient will receive the treatment of 6-10Gy*3-6F plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression and the largest lesion measures between 3 cm and 5 cm, the patient will receive the treatment of 3 Gy * 15 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression and the largest lesion is larger than 5 cm, the patient will receive treatment with Spatial Fractionated Radiotherapy Technique (SFRT) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression, and when the largest lesion is ≤ 3 cm and the patient can maintain the radiotherapy position for 50 minutes, the patient will receive treatment with the hyperfractionated pulsed radiotherapy technique (0.5 Gy * 16 * 6 fractions) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, Benmelstobart is continued for maintenance treatment.
Experimental: Group C
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression, the patient will receive the treatment of 6-10Gy*3-6F plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression and the largest lesion measures between 3 cm and 5 cm, the patient will receive the treatment of 3 Gy * 15 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression and the largest lesion is larger than 5 cm, the patient will receive treatment with Spatial Fractionated Radiotherapy Technique (SFRT) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression, and when the largest lesion is ≤ 3 cm and the patient can maintain the radiotherapy position for 50 minutes, the patient will receive treatment with the hyperfractionated pulsed radiotherapy technique (0.5 Gy * 16 * 6 fractions) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, Benmelstobart is continued for maintenance treatment.
Experimental: Group D
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression, the patient will receive the treatment of 6-10Gy*3-6F plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression and the largest lesion measures between 3 cm and 5 cm, the patient will receive the treatment of 3 Gy * 15 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression and the largest lesion is larger than 5 cm, the patient will receive treatment with Spatial Fractionated Radiotherapy Technique (SFRT) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression, and when the largest lesion is ≤ 3 cm and the patient can maintain the radiotherapy position for 50 minutes, the patient will receive treatment with the hyperfractionated pulsed radiotherapy technique (0.5 Gy * 16 * 6 fractions) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, Benmelstobart is continued for maintenance treatment.
Experimental: Group E
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression, the patient will receive the treatment of 6-10Gy*3-6F plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no progression and the largest lesion measures between 3 cm and 5 cm, the patient will receive the treatment of 3 Gy * 15 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression and the largest lesion is larger than 5 cm, the patient will receive treatment with Spatial Fractionated Radiotherapy Technique (SFRT) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, if there is no disease progression, and when the largest lesion is ≤ 3 cm and the patient can maintain the radiotherapy position for 50 minutes, the patient will receive treatment with the hyperfractionated pulsed radiotherapy technique (0.5 Gy * 16 * 6 fractions) plus Benmelstobart.
Other Names:
  • Radiotherapy
Drug: Benmelstobart combined with chemotherapy
After 4 cycles of treatment with Benmelstobart combined with chemotherapy, Benmelstobart is continued for maintenance treatment.
Experimental: Group F
Drug: Benmelstobart combined with Bevacizumab and chemotherapy
For eligible subjects who have developed resistance to EGFR-TKI, after 4 cycles of treatment with Benmelstobart combined with Bevacizumab and chemotherapy, if there is no disease progression, they will receive the treatment of 6-10Gy * 3-6 fractions plus Benmelstobart.
Other Names:
  • Radiotherapy

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
Measure Description
Time Frame
The remission rate of abscopal lesions
Time Frame: From date of randomization, until disease progression , loss of clinical benefit ,withdrawal of consent, death, or study termination by the Sponsor, whichever occurs first. Up to approximately 2 years
To evaluate the efficacy of Benmelstobart plus different radiotherapy fractionation modes in non-small cell lung cancer (NSCLC) patients with multiple metastases, as measured by the remission rate of abscopal lesions according to RECIST v1.1
From date of randomization, until disease progression , loss of clinical benefit ,withdrawal of consent, death, or study termination by the Sponsor, whichever occurs first. Up to approximately 2 years

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
Measure Description
Time Frame
PFS
Time Frame: From date of randomization, until disease progression , loss of clinical benefit ,withdrawal of consent, death, or study termination by the Sponsor, whichever occurs first. Up to approximately 2 years
To evaluate the efficacy of Benmelstobart plus different radiotherapy fractionation modes in non-small cell lung cancer (NSCLC) patients with multiple metastases, as measured by progression-free survival rate according to RECIST v1.1
From date of randomization, until disease progression , loss of clinical benefit ,withdrawal of consent, death, or study termination by the Sponsor, whichever occurs first. Up to approximately 2 years
OS
Time Frame: up to 5 years
To evaluate the efficacy of Benmelstobart plus different radiotherapy fractionation modes in non-small cell lung cancer (NSCLC) patients with multiple metastases, as measured by by overall survival
up to 5 years
AE
Time Frame: From date of consent informed until 60 days after the last investigational product administration. Up to approximately 2 years
The incidence of immune-related adverse events (irAEs) as assessed by the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0
From date of consent informed until 60 days after the last investigational product administration. Up to approximately 2 years

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.
Xinqiao Hospital of Chongqing

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jianguo Sun, MD, the second affiliated hospital of Army medical university, Chongqing, Chongqing 40037 Recruiting

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 (Estimated)

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.
July 9, 2025

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.
June 30, 2027

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.
December 31, 2027

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).
April 20, 2025

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.
April 29, 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.
May 1, 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.
July 14, 2025

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.
July 11, 2025

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.
July 1, 2025

More Information

Terms related to this study

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.
  • XQonc-023

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

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