RecruitingNot ApplicableNCT04790682

LIquid Biopsy to prEdict Responses To First-line immunotherapY in Metastatic Non-small Cell LUNG Cancer. LIBERTY LUNG

LIquid Biopsy to prEdict Responses To First-line immunotherapY in Metastatic Non-small Cell LUNG Cancer

Sponsor

Institut Curie

Enrollment

300 participants

Start Date

May 22, 2021

Study Type

INTERVENTIONAL

Conditions

Metastatic Lung Cancer

Summary

Patient with histologically proven NSCLC in a metastatic stage, treatment naïve and eligible for first-line treatment with immune checkpoint inhibitor. Combination with chemotherapy is possible. Presence of a mutation after NGS analysis is required for ctDNA follow-up.

Eligibility

Min Age: 18 Years

Inclusion Criteria11

Histologically-proven NSCLC.
Age ≥ 18 years.
Advanced or metastatic stage IV.
Treatment-naïve patient.
Eligibility to first-line treatment with immune checkpoint inhibitor.
Measurable disease according to RECIST 1.1 criteria on CT-Scan.
Availability of expression of PD-L1 at immunohistochemistry analysis of the tumor biopsy.
No ALK or EGFR gene alteration.
Availability of tumor tissue for NGS analysis (7 slides).
PS 0 or 1.
Signed informed consent of the patient.

Exclusion Criteria4

No social security affiliation.
Person under legal protection.
Pregnant and breastfeeding women.
Patients can participate to another clinical trial that is not modifying immunotherapy or immunotherapy/chemotherapy treatment nor study follow-up ; after investigator's information

Interventions

BIOLOGICALassessment of the predictive value of ctDNA level of the prominent mutant allele variation between baseline and week 6, on response to treatment according to RECIST 1.1 criteria.

* At pre-screening NGS analysis on tumor tissue (slides). Only patients with at least 1 mutation at NGS on the tumor tissue will ultimately be enrolled in the main study, to have the possibility to follow the mutation using ctDNA. * Main study will be initiated after results of the NGS and before initiation of pembrolizumab. Blood specimens will be taken with EDTA tubes or streck tubes at the time of puncture for pembrolizumab infusion at baseline before starting treatment, at 3 weeks, 6 weeks and then every 6 weeks (30 ml at Baseline then 20 ml of blood). Blood immunomonitoring will be done before starting the treatment, at 6 weeks and at 18 Week. An additional measurement will be performed if treatment is stopped before the end of the study (18 ml of blood). * Optional blood samples will be realized to analyse the degree of activity of the plasmatic lymphocytes before starting the treatment and at 6 weeks and (18 ml of blood).