Impact of high potency THC on cognitive function in young adults

Impacts of THC Potency of Cannabis Concentrates and THC Metabolism on Cognitive Impairment in Young Adults

NA · University of California, San Francisco · NCT06077292

This study is testing how using high potency THC products affects thinking and memory in young adults aged 21-25, while also looking at whether switching to less potent options helps.

Quick facts

PhaseNA
Study typeInterventional
Enrollment110 (estimated)
Ages21 Years to 25 Years
SexAll
SponsorUniversity of California, San Francisco (other)
Locations1 site (San Francisco, California)
Trial IDNCT06077292 on ClinicalTrials.gov

What this trial studies

This interventional study aims to assess how the use of high potency THC products affects cognitive function in young adults aged 21-25. Participants will be encouraged to switch to less potent THC products, and their cognitive performance will be evaluated through baseline assessments and follow-up measures. The study will also explore the relationship between genetic variations in THC metabolism and cognitive impairment, as well as the feasibility of monitoring THC consumption among frequent users. Blood and urine samples will be collected to analyze THC levels and metabolism.

Who should consider this trial

Good fit: Ideal candidates are young adults aged 21-25 who reside in San Francisco and use cannabis concentrates daily.

Not a fit: Patients who are pregnant or regularly use other drugs may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved cognitive function and harm reduction strategies for young cannabis users.

How similar studies have performed: Other studies have explored THC effects on cognition, but this specific approach focusing on high potency THC and genetic factors is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Between the ages of 21-25
* Resides in San Francisco
* Self-report cannabis concentrate use as their primary method of cannabis use
* Self-report using cannabis daily or almost daily (i.e., at least 6 out of 7 days during each of the last 4 weeks)
* Self-report only purchasing cannabis from regulated retail stores in California.

Exclusion Criteria:

* Pregnant
* Regularly uses other drugs (other than nicotine)

Where this trial is running

San Francisco, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cannabis Use, THC, Marijuana Use, Cognitive Impairment, THC Vaping, Cannabis, Marijuana, High Potency THC

Last reviewed 2026-05-15 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.