Clinical Scorecard: Genetic Overlap Between Psychoactive Substance Use and Cancer: Findings from an Extensive Genome-Wide Cross-Trait Analysis

At a Glance

Key Highlights

• Shared genetic associations between alcohol/nicotine dependence and various cancers.
• Cannabis use disorder linked to increased oral cancer risk, but potential antitumor effects noted.
• Opioids may influence cancer progression, with mixed evidence on their effects.
• Tea and coffee consumption show potential inverse associations with multiple cancer types.
• Identification of common genetic architectures linking substance use and cancer.

Guideline-Based Recommendations

Diagnosis

• Consider genetic predispositions when assessing cancer risk in individuals with substance use disorders.

Management

• Explore potential therapeutic effects of cannabis in managing cancer-related symptoms.

Monitoring & Follow-up

• Monitor cancer risk in patients with chronic substance use, particularly alcohol and nicotine.

Risks

• Be aware of the increased cancer risks associated with heavy alcohol and tobacco use.

Patient & Prescribing Data

Patients with substance use disorders and those at risk for cancer.

Consider the dual impact of psychoactive substances on both substance use disorders and cancer development.

Clinical Best Practices

• Integrate genetic screening for substance use disorders and cancer risk assessment.
• Educate patients on the risks associated with psychoactive substance use and cancer.

References

• Psychoactive Substance Use and Cancer Study