Microbiota and the Lung Cancer

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.

Eligibility

Inclusion Criteria:

* non small cell lung carcinoma patient suitable for surgery, or chemotherapy followed by surgery
* BMI \<29.9 kg/m²
* not taking antibiotics, corticosteroids and/or immunosuppressants at least during two months before inclusion
* not taking prebiotics, probiotics or symbiotics at least during two months before inclusion
* signing the written consent before enrollment in the study
* affiliation to the national health insurance (or system alike) according to the law from 9th August 2004

Exclusion Criteria:

* cognitive difficulties
* refusal of participation or inability to give a clear consent
* digestive or pulmonary infection of a long duration during the two months preceding the study (with antibiotic treatment)
* inflammatory digestive pathology
* concurrent treatment with experimental medication, participation in another clinical therapeutic study within 30 days
* presence of colostomy, total or partial gastrectomy
* previous esophageal surgery
* previous ORL (otho-rhino-laryngo) cancer treated by radiotherapy or surgery
* patient enable to follow the requirements of the study
* patient deprived of his rights by administrative or judicial decision

Conditions3

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