Gabapentin for Bipolar Disorder and Cannabis Use

Gabapentin for Restoring GABA/glutamate Homeostasis in Co-occurring Bipolar and Cannabis Use Disorders: A Randomized, Double-blind, Placebo-controlled, Parallel-group, Clinical MRI Study

NIH-funded research Medical University of South Carolina · NIH-11099972

This project is looking at whether gabapentin can help people who have both bipolar disorder and cannabis use disorder by balancing important brain chemicals.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionMedical University of South Carolina NIH-funded
Lab location1 site (Charleston, United States)
Project IDNIH-11099972 on NIH RePORTER

What this research studies

Many people with bipolar disorder also struggle with cannabis use disorder, and this combination often leads to worse health outcomes. Current treatments for this co-occurring condition are not very effective, and there haven't been many dedicated medication options. This project aims to see if gabapentin, a medication, can help by rebalancing brain chemicals like GABA and glutamate, which are thought to be disrupted in these conditions. Researchers will compare gabapentin to a placebo in a clinical setting, using MRI scans to observe brain changes.

Who could benefit from this research

Good fit: Ideal candidates would be individuals diagnosed with both bipolar disorder and cannabis use disorder.

Not a fit: Patients who do not have both bipolar disorder and cannabis use disorder would likely not receive direct benefit from this specific treatment approach.

Why it matters

Potential benefit: If successful, this could provide a much-needed treatment option to improve mood and reduce cannabis use for individuals living with both bipolar disorder and cannabis use disorder.

How similar studies have performed: A previous smaller study found that gabapentin was associated with changes in brain chemicals and improvements in cannabis use and mood symptoms in this patient group.

Where this research is happening

Charleston, 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.