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Enhancing Methods for Research on Cannabis: A Workshop Report.

Jonathan M Samet¹, Jessica Barrington-Trimis², Lisa Bero³

¹Colorado School of Public Health, 13001 E. 17th Place, Aurora, CO, 80045, USA. Jon.Samet@cuanschutz.edu.

Journal of Cannabis Research

|September 30, 2025

Summary

This summary is machine-generated.

Improved cannabis research methods are urgently needed due to market changes and high-concentration products. This workshop proposed enhanced epidemiological, clinical, policy, and surveillance research strategies for better decision-making.

Keywords:

Clinical research Delta-9-tetrahydrocannabinol Dose Epidemiological research Exposure High-concentration cannabis Policy Public health Surveillance

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Area of Science:

Public Health
Cannabis Science
Policy Research

Background:

State-level legalization of cannabis has spurred market growth and product diversification, particularly with high-delta-9-tetrahydrocannabinol concentrations.
Limited research and methodological constraints hinder evidence-based policy formulation for emerging cannabis products.

Purpose of the Study:

To address research limitations by convening a multidisciplinary workshop focused on advancing cannabis research methods.
To generate recommendations for epidemiological, clinical, surveillance, and policy research areas to inform decision-making.

Main Methods:

A multidisciplinary workshop was convened by the Colorado School of Public Health.
Participants focused on four key areas: epidemiology, clinical research, surveillance, and policy.
Emphasis was placed on improving the assessment of cannabis product use.

Main Results:

Recommendations for standardized exposure assessment measures in epidemiology, including validation and periodic updates.
Suggestions for clinical research include standardized dosing, data collection, and biomarker identification.
Policy research recommendations target state regulators and policymakers, while surveillance proposals focus on monitoring high-concentration cannabis use and adverse outcomes.

Conclusions:

Enhanced research methodologies are critical to improve the informativeness of cannabis research.
Urgent improvements are needed to keep pace with the rapidly evolving cannabis marketplace and product landscape.