THC study aims to unravel Cannabis's impact on memory

NCT ID NCT02407808

First seen May 02, 2026 · Last updated Jun 21, 2026 · Updated 7 times

Summary

This study at Yale University looks at how THC, the active ingredient in cannabis, affects short-term and long-term memory. Researchers will give 80 adults who have used cannabis before either a low dose of THC or a placebo and then test their memory. The goal is to better understand the effects of cannabinoids on learning and memory.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • VA Connecticut Healthcare System

    West Haven, Connecticut, 06516, United States

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

THC (the active ingredient in cannabis)

What this could lead to

If successful, this study could help explain how cannabis affects memory, which may guide future research on its risks or potential uses.

What could go wrong

This is a small, early-phase study (Phase 1) focused on healthy volunteers, not a treatment trial. Results may not apply to people with memory disorders or heavy cannabis users.

Conditions

The condition(s) this trial relates to.

cannabis dependence Psychotic Disorders

As listed by the trial registrant

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