Local Consolidative Therapy Versus Maintenance Immunotherapy After First-Line Chemoimmunotherapy in Metastatic NSCLC

NCT07842471 | Not Yet Recruiting Phase 2

• 1 other identifier: CTONG 2601
• Study Type: interventional
• Target: 117
• Locations: 1 country
• Sites: 1

Brief Summary

This study explores the difference in progression-free survival (PFS) between local consolidative therapy (LCT arm) targeting residual lesions and continued systemic therapy (non-LCT arm) in patients with metastatic NSCLC who have achieved at least partial response (PR) following first-line chemoimmunotherapy. In this process, a multidisciplinary team (MDT) comprising surgical oncology, radiation oncology, and medical oncology will be integrated to administer local treatment modalities-including surgery, radiotherapy, and ablation-for oligometastatic lesions, aiming to address critical clinical questions regarding the optimal beneficiary population for local therapy, the best local treatment modality, and the optimal timing of local intervention.

Conditions

NSCLC (Non-small Cell Lung Carcinoma)

Keywords

local consolidative therapy; surgery; radiotherapy; ablation; immunotherapy

Outcome Measures

Primary Outcomes (1)

• Progression-Free Survival (PFS)

  Time from randomization to the date of the first documentation of disease progression according to Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) or death from any cause, whichever is earlier, assessed up to 60 months.

Secondary Outcomes (5)

• Overall Survival (OS)

  time from randomization to the date of death from any cause, assessed up to 60 months.

• Safety of local consolidative therapy.

  30 days (±5 days) after local therapy or prior to the first maintenance therapy following local therapy.

• Impact of different local consolidative treatment modalities on prognosis.

  When a PFS or OS event occurs

• Time from local consolidative therapy to recurrence/progression of previously existing metastatic lesions.

  From date of local consolidative therapy until the date of first documented recurrence/progression of previously existing metastatic lesions, assessed up to 60 months..

• Time from local consolidative therapy to development of new metastatic lesions.

  From date of local consolidative therapy until the date of first documented new distant metastasis, assessed up to 60 months.

Study Arms (2)

LCT

EXPERIMENTAL

Receiving local treatment targeting residual lesions, followed by physician-assessed continuation of maintenance systemic therapy or surveillance monitoring; optional local treatment modalities include surgery, radiotherapy, and ablation. Assessment of residual lesions will be primarily based on imaging examinations including PET-CT and brain MRI. PET evaluation of residual lesions will primarily reference the PERCIST (PET Response Criteria in Solid Tumors) criteria. Compared with baseline imaging, lesions with metabolic activity exceeding that of the mediastinal blood pool or liver on PET evaluation will be considered potentially active residual lesions. The final determination shall be made through multidisciplinary assessment jointly by a radiologist or nuclear medicine physician with more than 10 years of clinical experience, together with thoracic surgeons, pulmonologists, and radiation oncologists.

Procedure: Immediate Local Consolidative Therapy (LCT)

non-LCT

NO INTERVENTION

Continuation of systemic maintenance therapy until disease progression (PD) or intolerable toxicity; upon PD, patients may undergo MDT reassessment for potential local therapy opportunities.

Interventions

Immediate Local Consolidative Therapy (LCT) PROCEDURE

Patients with stage IV disease (9th edition TNM staging) who have received 4-6 cycles of first-line immunotherapy combined with platinum-based doublet chemotherapy, achieved at least partial response (PR) upon efficacy assessment, demonstrated metabolically active residual lesions on PET evaluation, and been clinically assessed by the multidisciplinary team (MDT) as amenable to individualized local therapy. And then receiving local treatment targeting residual lesions, followed by physician-assessed continuation of maintenance systemic therapy or surveillance monitoring; optional local treatment modalities include surgery, radiotherapy, and ablation.

Also known as: radiotherapy, ablation

LCT

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Voluntary participation in the study with signed informed consent;
• Age ≥18 years, both male and female;
• Eastern Cooperative Oncology Group (ECOG) performance status score of 0-1;
• Estimated life expectancy ≥12 months;
• Histologically/cytologically confirmed non-small cell lung cancer (NSCLC) at initial diagnosis, with TNM stage IV (IASLC 9th edition);
• Absence of actionable genetic mutations related to EGFR/ALK/ROS1 and other druggable targets;
• Completion of 4-6 cycles of immunotherapy (PD-1/PD-L1 monoclonal antibody) combined with platinum-based doublet chemotherapy prior to enrollment;
• Achievement of partial response (PR) or complete response (CR) as assessed by RECIST 1.1 criteria;
• Presence of metabolically active residual lesions on PET evaluation, and clinical assessment by the multidisciplinary team (MDT)\* indicating feasibility of individualized local therapy (e.g., ≤3 organs and ≤5 lesions, amenable to surgery/radiotherapy/ablation);
• Adequate organ function.

You may not qualify if:

• Expected to be unable to tolerate surgery, radiation therapy, or ablation;
• Unable to receive local treatment for all active residual lesions;
• Patients with a confirmed history of malignant pleural effusion or pleural dissemination;
• Pathologically diagnosed with neuroendocrine cancer at initial diagnosis (including small cell lung cancer, combined small cell lung cancer, large cell neuroendocrine carcinoma, mixed large cell neuroendocrine carcinoma, and carcinoid). Patients who do not show neuroendocrine components at initial diagnosis but develop such components in post-surgical pathology may be included;
• Previously received allogeneic tissue or solid organ transplantation;
• History of interstitial lung disease requiring steroid treatment (non-infectious) or currently suffering from interstitial lung disease requiring steroid treatment;
• Presence of viral infectious diseases during screening:
• Positive serum test for human immunodeficiency virus (HIV);
• Active hepatitis B: positive hepatitis B surface antigen (HBsAg) and HBV-DNA quantitative test \>500 IU/mL or \>2000 copies/mL;
• Active hepatitis C: positive hepatitis C virus (HCV) antibody and HCV-RNA quantitative test above the upper limit of normal;
• Participants with uncontrolled hypertension defined as systolic blood pressure \>150 mmHg or diastolic blood pressure \>90 mmHg (adjustment of antihypertensive medications is allowed prior to study initiation, but the average of the most recent three consecutive blood pressure readings before enrollment must be ≤150/90 mmHg) (each measurement separated by at least 2 minutes);
• Active infection requiring intravenous antimicrobial therapy at screening;
• Diagnosis of another malignancy within 3 years prior to signing informed consent, excluding cured cases of cutaneous basal cell carcinoma, cervical or breast in situ carcinoma, superficial bladder cancer, localized prostate cancer; participants with low-risk early-stage prostate cancer (T1-T2a stage, Gleason score ≤6, PSA \<10 ng/mL) are eligible if they have undergone curative treatment or are under active surveillance with stable disease, regardless of whether they have received treatment;
• Conditions that may interfere with interpretation of study results or affect the participant's ability to complete the entire study, or where, in the investigator's judgment, participation does not serve the participant's best interest;
• Pregnant, breastfeeding, or planning pregnancy; positive pregnancy test within 7 days prior to first study treatment;

Sponsors & Collaborators

• Guangdong Provincial People's Hospital: lead

Study Sites (1)

Guangdong Provincial People's Hospital

Guangzhou, Guangzhou, 510080, China

Location

MeSH Terms

Conditions

Carcinoma, Non-Small-Cell Lung

Interventions

Radiotherapy

Condition Hierarchy (Ancestors)

Carcinoma, Bronchogenic; Bronchial Neoplasms; Lung Neoplasms; Respiratory Tract Neoplasms; Thoracic Neoplasms; Neoplasms by Site; Neoplasms; Lung Diseases; Respiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Therapeutics

Central Study Contacts

Wen-Zhao Zhong, MD, PhD

CONTACT

+86-020-83827812; syzhongwenzhao@scut.edu.cn

Rui Fu, MD, PhD

CONTACT

+86-020-83827812; ruifu66@foxmail.com

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Chief Physician

Study Record Dates

• First Submitted: August 5, 2026
• First Posted: September 25, 2026
• Study Start (Estimated): October 8, 2026
• Primary Completion (Estimated): December 31, 2029
• Study Completion (Estimated): December 31, 2032
• Last Updated: September 25, 2026

Record last verified: 2026-07

Locations

CN (1)