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Study: No Association Between Cumulative Consumption Of Cannabis Smoke And Lung Cancer Risk

Thursday, 16 May 2013

Study: No Association Between Cumulative Consumption Of Cannabis Smoke And Lung Cancer RiskLos Angeles, CA: Subjects who regularly inhale cannabis smoke possess no greater risk of lung cancer than do those who consume it occasionally or not at all, according to data presented at the annual meeting of the American Academy for Cancer Research.

Investigators from the University of California, Los Angeles analyzed data from six case-control studies, conducted between 1999 and 2012, involving over 5,000 subjects (2,159 cases and 2,985 controls) from around the world.

Researchers reported, "Our pooled results showed no significant association between the intensity, duration, or cumulative consumption of cannabis smoke and the risk of lung cancer overall or in never smokers."

Previous case-control studies have also failed to find an association between cannabis smoking and head and neck cancers or cancers of the upper aerodigestive tract.

Preclinical studies have documented that cannabinoids possess potent anti-cancer properties, including the inhibition of lung cancer cell growth. To date, however, scientists have yet to conduct clinical trials seeking to replicate these results in human subjects.

For more information, please contact Allen St. Pierre, NORML Executive Director, at (202) 483-5500 or Paul Armentano, NORML Deputy Director, at: paul@norml.org.







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