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Clinical Trial Summary

At present, it is recommended to continue immunotherapy until progression or unacceptable toxicity. However, only a minority of patients benefits from a durable response and most see the disease progress despite several months of control under immunotherapy. Multimodal approaches have been developed to improve their prognosis. This study, randomized, open-label study aims to evaluate the impact of addition of ablative radiotherapy on OS of patients with NSCLC and oligometastatic lesions and treated by immunotherapy in first line (potentially associated with chemotherapy) or beyond. Stereotactic radiotherapy will be performed on a maximum of 5 residual hypermetabolic lesions seen on 18F-FDG PET / CT, in patients responding to immunotherapy (or with a stable disease) for at least 6 months.


Clinical Trial Description

Description of the modalities for recruiting : During a standard consultation, the oncologist presents the study to the patient with locally advanced or metastatic non-small cell lung cancer long-term responders to immunotherapy. He gives the patient the consent form to participate in the study. Once the consent form has been signed by the patient and the investigator, the investigator prescribes a screening test which must be carried out within 30 days before the randomization (Day 0, D0). The screening step includes in particular a complete physical exam, a clinical laboratory tests a thoraco abdomino pelvic (TAP) and cerebral CT scan, a cerebral MRI (for patients with cerebral lesions observed on cerebral CT scan), a Spinal MRI (for patients with bones lesions observed on TAP CT scan), a PET scan (18F-FDG) (the results will be routinely interpreted in the centre and will be centrally reviewed), Patient Reported Outcome (PRO), QLQ-C30 and QLQ LC13 The inclusion of a patient is conditioned by the following definitive criterion : Maximum 5 residual hypermetabolic lesions measured on the CT from the 18F-FDG PET / CT centrally reviewed, including primary tumor and a maximum of 3 brain asymptomatic metastases (even if they are poorly seen in 18F- FDG PET/CT) treatable in stereotactic radiotherapy. Patients registration and randomization : Any patient who has signed an informed consent form (ICF) must be registered in the eCRF in order to be assigned a patient number. Randomization will be centralized and performed via the eCRF. Patients will be randomly assigned (1:1) to either continuation of immunotherapy alone or addition of local ablative radiotherapy to immunotherapy. The randomization procedure using minimization method will be stratified by the investigation center, by the treatment line (1 vs ≥2) and by the immunotherapy (pembrolizumab and nivolumab versus atezolizumab). Treatment period : Both arms continue the anti-PD1 or anti-PDL-1 immunotherapy according to the medical prescription. Arm A (experimental), SRT start maximum 3 weeks after randomisation Follow-up visits include in particular a complete physical exam, a clinical laboratory tests, a thoraco abdomino pelvic and cerebral CT scan, a cerebral MRI (for patients with cerebral lesions observed on cerebral CT scan), a Spinal MRI (for patients with bones lesions observed on TAP CT scan), a PET scan (18F-FDG) at 6 months post-randomization only (the results will be routinely interpreted in the centre and will be centrally reviewed) ; Patient Reported Outcome (PRO), QLQ-C30 and QLQ LC13 Imaging surveillance (CT scan +/- cerebral MRI +/- spinal MRI) will be performed for each patient up to progression or up to 12 months after randomization of the last patient included in the absence of progression. Vital status is collected once a year and also date of death if applicable for each patient up to 12 months after randomization of the last patient included. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05111197
Study type Interventional
Source Institut Cancerologie de l'Ouest
Contact Sandrine HIRET, MD
Phone +33 (0)2 40 67 99 78
Email sandrine.hiret@ico.unicancer.fr
Status Recruiting
Phase Phase 3
Start date January 12, 2022
Completion date January 2025

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