The hypothesis of this prospective observational pilot study of diagnostic diagnostic performance is that, for patients with NSCLC treated with immunotherapy associated or not with chemotherapy, certain metabolic biomarkers on 18FDG PET scans allow early identification of treatment response (or lack of response to treatment) and optimize prediction of tumor response compared with current standards.
Age greater than or equal to 18 years,
Patients with histologically proven, metastatic or locally advanced NSCLC, with indication for immunotherapy (Nivolumab, pembrolizumab, atezolizumab, durvalumab, avelumab), in combination or not with chemotherapy molecules (carboplatin, cisplatin, pemetrexed, paclitaxel or nab-paclitaxel), validated by a Multidisciplinary Team and prescribed within the scope of their Marketed Authorization, whatever the line of treatment treatment line,
ECOG 0 to 3,
The patient's understanding of the protocol and the note of non-opposition, with oral agreement,
Age under 18,
Contraindication to 18FDG PET-CT examinations: severe claustrophobia, unbalanced diabetes at the time of the first PET-CT scan (fasting capillary glucose ≥ 11 mmol),
Hemoglobin less than 7 g/dL at inclusion. If the patient has a respiratory or or cardiovascular pathology, hemoglobin must not be less than 9.0 g/dL,
Any participation in other biomedical studies involving the drug, medical devices or medical devices or imaging techniques is prohibited, with the exception of biomedical studies,