NCT03068663

Microbiota and the Lung Cancer

Characterization of Microbiota (Intestinal, From Lungs, and Upper Airways) in Patients With Non-small Cell Lung Carcinoma: Exploratory Study

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Centre Jean Perrin · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

The subject is to study the lung microbiota and the one of upper airways (UAs) (much less studied than the intestinal microbiota) in 40 patients having lung cancer. 20 patients undergo only surgical treatment, while other half receives also chemotherapy. The idea is to explore changes in microbiota of the lung, upper UAs and intestine, and potentially find associations between them. These results will serve us as a base for the future study, focused on manipulation of the microbiota by prebiotics, probiotics or symbiotics and its effect on anti-cancer treatment tolerance and effectiveness.

Detailed description

Lung cancer patients will be divided in two groups, a first one with patients undergoing both chemotherapy and surgery (Pct-chir), and the second one with patients only undergoing surgery (Pchir). Following inclusion, they will be given a 7-days alimentary survey, along with blood and saliva sampling (after buccodental examination and dental panoramic). The Pct-chir group will repeat the same procedure after the chemotherapy and before the surgery. Day before the surgery, patients are asked to bring their faecal samples (in special box provided in advance) and the filled survey. During the operation the piece of lung tissue as well as the tumour (if the size enables it) will be sampled for further analysis. Lavage will be performed on the lung immediately after its resection. Saliva, faecal sample, lung and tumour tissue, and lavage will be used for bacterial DNA extraction, followed by qPCR and sequencing analysis. Lavage and blood samples will be analysed by flow cytometry and ELISA, to establish the immunological profile (interleukines, cell surface markers).

Conditions

• Non Small Cell Lung Cancer

Interventions

Type	Name	Description
OTHER	Sampling	Patients will receive their standard treatments, surgery with/without chemotherapy. A patient intervention consists in taking samples of blood, saliva, faeces, lung/tumour tissue, and bronchoalveolar lavage fluid.

Timeline

• Start date: 2017-05-23
• Primary completion: 2029-10-30
• Completion: 2029-10-30
• First posted: 2017-03-03
• Last updated: 2026-03-20

Locations

1 site across 1 country: France