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# No epidemiological evidence yet links e-cigarettes or snus to chemotherapy response
- URL: https://www.coios.me/no-epidemiological-evidence-yet-links-e-cigarettes-or-snus/
- Published: 2026-09-15T21:44:20.000Z
- Updated: 2026-09-15T21:44:20.000Z
- Description: A systematic review of alternative tobacco and nicotine products during anticancer therapy found no epidemiological study of their effect on chemotherapy response, and a single in vitro signal of e-cigarette-induced cisplatin resistance failed to replicate in a multi-centre study.
- Author: Daniel Ryan
- Tags: Healthcare today, Cancer, Smoking and vaping, World, #peer-reviewed, #new, #item

The review searched three databases to June 2026 for evidence that e-cigarettes, snus and other alternative nicotine products alter response to chemotherapy, cancer progression or cancer-related death. No epidemiological study addressed the question; some observational evidence associates snus with higher cancer-related mortality, while an in vitro report of e-cigarette-induced cisplatin resistance in head and neck squamous cell lines was not confirmed on multi-centre replication. The authors conclude the evidence base cannot support a determination either way.

*Why it is interesting: Marks an evidence gap rather than a finding: nicotine substitution among cancer patients is unmeasured at population scale.*

Source

[Toxicology mechanisms and methods, 2026-09-14](https://doi.org/10.1080/15376516.2026.2726966?ref=coios.me)

DOI

10.1080/15376516.2026.2726966

Type

Peer-reviewed article

Design

Systematic review of mechanistic, in vitro and observational studies searched in PubMed, Embase and Web of Science to June 2026; no epidemiological studies identified

Verdict

New finding

Driver

[Cancer](https://www.coios.me/d-cancer/)

Driver

[Smoking and vaping](https://www.coios.me/d-smoking-vaping/)