Cannabis use and its effects for people getting immunotherapy for cancer

Assessing benefits and harms of cannabis use in patients treated with immunotherapy for cancer: a prospective cohort study

NIH-funded research State University of New York at Buffalo · NIH-11159447

This project follows people with cancer receiving immune checkpoint inhibitor treatments to learn how using cannabis affects symptoms, immune health, and disease course.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionState University of New York at Buffalo NIH-funded
Lab location1 site (Amherst, United States)
Project IDNIH-11159447 on NIH RePORTER

What this research studies

You would join a one-year study across multiple cancer centers enrolling about 450 people who are receiving immune checkpoint inhibitors (ICIs). Researchers will collect regular information on cannabis use, symptoms like pain and anxiety, medical side effects, immune blood tests, and cancer outcomes over 12 months. The study will compare people who use cannabis with those who do not to track possible benefits, harms, and changes in immune markers. The team builds on prior surveys showing many cancer patients use cannabis but there is little long-term data about its effects during immunotherapy.

Who could benefit from this research

Good fit: Adults with cancer who are receiving or recently started immune checkpoint inhibitor therapy (within about three months) and who can attend one of the participating cancer centers are best suited to join.

Not a fit: People not treated with immunotherapy, pediatric patients, or those who neither use nor plan to use cannabis are unlikely to benefit directly from this study.

Why it matters

Potential benefit: If successful, the findings could help patients and clinicians make informed decisions about using cannabis during immunotherapy by clarifying potential benefits and risks.

How similar studies have performed: Previous large surveys have shown many cancer patients use cannabis, but few longitudinal studies have examined its impact on immune function or cancer outcomes during immunotherapy.

Where this research is happening

Amherst, 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 2026-06-13 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.