Does cannabis fuel aggressive lung cancer in young adults?

NCT ID NCT05119244

Recruiting now Knowledge-focused Sponsor: Centre Chirurgical Marie Lannelongue Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is investigating how common cannabis use is among lung cancer patients under 60 and whether it is linked to more aggressive tumors. Researchers will collect blood and hair samples from 150 participants across three French hospitals. The goal is to better understand if cannabis plays a role in lung cancer development and progression, especially in younger people.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this study could clarify whether cannabis use is linked to more aggressive lung cancer in younger patients.
What could go wrong: This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may be biased due to cannabis's illegal status and frequent tobacco co-use.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

cannabis dependence lung cancer lung neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CANNABIS USE

Contacts and locations

Locations

Centre Chirurgical Marie Lannelongue
RECRUITING

Le Plessis-Robinson, 92350, France
Hopital Paris Saint Joseph
COMPLETED

Paris, 75014, France
Institut Gustave Roussy
COMPLETED

Villejuif, France

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