Investigating the use of medical marijuana for chronic pain management in patients on opioids

Medical Marijuana, Pain, and Opioid Use in Patients with Chronic Non-cancer Pain

NIH-funded research Massachusetts General Hospital · NIH-10857167

This study is looking at whether medical marijuana can help adults with long-lasting pain who are currently using opioids and want to cut back, by comparing those who start using it right away with those who wait, to see how it affects their pain and opioid use.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionMassachusetts General Hospital NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-10857167 on NIH RePORTER

What this research studies

This research explores the potential benefits and risks of using medical marijuana (MM) as an additional treatment for adults suffering from chronic non-cancer pain (CNCP) who are currently on chronic opioid therapy (COT). The study aims to enroll 250 participants who have been experiencing neuropathic pain for over six months and are interested in tapering their opioid use. Participants will be randomly assigned to either start using MM immediately or to a waitlist group, allowing researchers to compare outcomes between the two groups over time. The goal is to better understand whether MM can effectively manage pain and reduce reliance on opioids.

Who could benefit from this research

Good fit: Ideal candidates are adults over 21 years old with chronic non-cancer pain who have been on opioid therapy for at least 90 days and are considering the use of medical marijuana.

Not a fit: Patients who are not currently on opioid therapy or those who do not have chronic non-cancer pain may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide a safer alternative for managing chronic pain and reduce the risks associated with long-term opioid use.

How similar studies have performed: While there is ongoing debate about the effectiveness of medical marijuana for chronic pain, this research aims to fill a gap in knowledge with a randomized approach that has not been extensively tested before.

Where this research is happening

Boston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-10 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.