🏛️ Verified NIH Record • Updated 2026-06-01

Preliminary Efficacy Trial of a Digital Intervention for Depression and Cannabis Use (NCT06878859)

AMP-C: A Digital Therapeutic for Reward Dysfunction in Co-Occurring Depression and Cannabis Use

🟢 Recruiting Observational / Diagnostic 🧠 Behavioral & Psychological Program Sponsor: Massachusetts General Hospital

🩺 Plain-English Summary (8th-Grade Level)

The purpose of this study is to examine the feasibility, acceptability, and preliminary efficacy of a digital intervention for co-occurring cannabis use and depression. Participants will be randomized to complete Amplification of Positivity - Cannabis Use (AMP-C) or symptom tracking. The main outcomes will include changes in depressive symptoms and cannabis use, as well as usability ratings.

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (8 items) and avoid the listed exclusions (5 items).

Location: Massachusetts General Hospital — Boston, Massachusetts

Age range: 18 Years

🧪 Interventions in This Study

  • Amplification of Positivity - Cannabis Use (AMP-C) (BEHAVIORAL)

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

Usually NOT eligible if any of the following apply:

  • Exclusion Criteria:
  • History of a psychotic disorder or bipolar disorder type I/II
  • Active suicidal ideation or intent based on the Columbia-Suicide Severity Rating Scale
  • Current psychotherapy engagement
  • Changes in psychotropic medication within six weeks of the start of study

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (1 Sites)

  • Massachusetts General Hospital — Boston, Massachusetts

📞 Contact the Study Coordinator

Phone: (617) 724-3532

Email: swu24@mgh.harvard.edu

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗