Can a phone app lift mood and cut cannabis use?

NCT ID NCT06878859

Recruiting now Symptom relief Sponsor: Massachusetts General Hospital Source: ClinicalTrials.gov ↗

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

Summary

This study tests a smartphone app called AMP-C that teaches people to notice and enjoy positive events. The goal is to see if it can reduce depression and cannabis use in adults who struggle with both. Eighty participants will either use the app or just track their symptoms. The study focuses on whether the app is easy to use and shows early signs of helping.

What this could mean

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

Active substance: smartphone app (AMP-C) that teaches positive thinking exercises
What this could lead to: If it works, this could offer a new, accessible way to help people manage both depression and cannabis use without medication.
What could go wrong: This is a small, early-stage study (80 people) testing feasibility, not a proven treatment. The app may not work for everyone, and results may not apply to the general population.

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

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Conditions

The condition(s) this trial relates to.

cannabis dependence major depressive disorder mental disorder psychiatric disorder

As listed by the trial registrant

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

CANNABIS USE DISORDER DEPRESSION - MAJOR DEPRESSIVE DISORDER MENTAL DISORDER

Contacts and locations

Locations

Massachusetts General Hospital
RECRUITING

Boston, Massachusetts, 02114, United States

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