NIH-funded research R21 grant

Investigating how regular cannabis users adjust their THC intake with different potency concentrates

Official title: THC titration of high-potency cannabis concentrates: A randomized crossover trial

Funded at Centre for Addiction and Mental Health · NIH-10951596 · Data updated 2026-11-12

This study is looking at how people who regularly use cannabis can control their THC intake when using strong cannabis concentrates, by having them try different levels of THC to see how it affects their experience and body.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionCentre for Addiction and Mental Health
NIH-funded
Lab location1 site (Toronto, Canada)
Project startJuly 15, 2024
Project endJune 30, 2026
Funding year2024
Award (this year)$143,492
NIH project number1R21DA061350-01
Project IDNIH-10951596 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are regular cannabis consumers who are familiar with using cannabis concentrates.

Less likely to help

Patients who do not use cannabis or have no experience with cannabis concentrates may not benefit from this research.

What this research studies

This research examines how regular cannabis consumers manage their THC intake when using high-potency cannabis concentrates. Participants will be involved in a randomized crossover trial where they will vape concentrates with varying THC levels (30%, 60%, and 90%) to assess their ability to self-titrate the dosage for desired effects. The study will also evaluate the subjective experiences, cognitive effects, and physiological responses associated with different THC potencies. Conducted in Toronto, Canada, this research aims to provide insights into the safety and regulation of high-potency cannabis products.

Why it matters

Potential benefit: If successful, this research could help inform safer consumption practices and regulatory policies for high-potency cannabis products.

How similar studies have gone: While there is limited evidence on self-titration in high-potency cannabis use, this approach is novel and aims to fill gaps in current understanding.

Where this research is happening

  • Centre for Addiction and Mental Health
    Toronto, Canada
    Active

Researchers

  • Principal investigator: Rueda, Sergio — Centre for Addiction and Mental Health
  • Study coordinator: Rueda, Sergio

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.