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Cannabis study to reveal how THC impacts memory and stress

NCT ID NCT07296874

Knowledge-focused Sponsor: Washington State University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how a moderate dose of THC (the active part of cannabis) affects mood, stress, and thinking in people who use cannabis at least once a week. Ninety adults will take part in two sessions—one with active cannabis and one with a placebo—without knowing which they get. They will complete memory and attention tests, a stress challenge, and wear a brain-wave device to measure brain activity.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 90 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

May 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * be 21 years of age or older * be fluent in English * use of cannabis at least once a week for at least one year * inhalation as their typical method of administration * be willing to abstain from cannabis on the day of their scheduled testing session Exclusion Criteria: * neurological conditions (e.g., neurodegenerative disorders, severe head injury, multiple concussions) * serious psychiatric conditions (e.g., psychosis, bipolar disorder) * family history of psychosis * intellectual disabilities or learning disorders (e.g., dyslexia) * chronic medical conditions that affect cognition or increase risk of cannabis use or exposure to cold water (e.g., heart disease, diabetes, Reynaud's disease, history of frostbite, peripheral neuropathy, history of fainting or seizures, fractures or wounds on both hands or wrists), * heart disease * BMI \> 34 * pregnant or lactating * use of illicit drugs in past 6 months * heavy use of alcohol (drinking \>4 drinks \>4 times per week) * nicotine/tobacco use * have experienced a severe adverse reaction to cannabis (e.g., panic attack, psychosis)

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Conditions

The condition(s) this trial relates to.

cannabis dependence

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cannabis use

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Washington State University

    Pullman, Washington, 99163, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.