Please assess the completion status of the following clinical trial:

Trial Title: Volatile Organic Compounds in Exhaled Air and Sweat of Patients Treated by Immunotherapy for Lung Cancer: Research on Biomarkers for Early Therapeutic Response

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* patient aged \> 18 years old~* patient with metastatic non-small cell lung cancer with marketing authorisation criteria for immunotherapy~* preserved overall condition (Performans Status 1)~* signed informed consent~* patient with healthcare insurance~Non Inclusion Criteria:~* patient with oxygen therapy or invasive ventilation~* patient unable to perform a slow vital capacity~* systemic corticosteroid therapy more than 10 mg per day of prednisone equivalent~* previous treatment with immunotherapy~* dermatological therapy interfering with sweat collection (psoriasis, irritant dermatitis, for instance)~* Patient deprived of liberty by judicial or administrative decision

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- VOC analysis (Type: EXPERIMENTAL): VOC analysis in exhaled air and sweat in patients treated by immunotherapy for lung cancer.

Based on this trial design, predict the completion outcome and termination type (if applicable).