Gabapentin for Bipolar & Cannabis Use Disorders

Summary

The proposed 2-week, double-blind, crossover, proof of concept study aims to measure and manipulate core neurochemical (i.e., dysregulated brain GABA/glutamate homeostasis) and neurobehavioral (i.e., elevated impulsivity) dysfunctions characteristic of individuals with cannabis use disorder (CUD) and Bipolar Disorder (BD), using a medication that has been shown to increase cortical GABA (i.e., gabapentin) levels in past research, and to evaluate medication-related changes in response inhibition (go no-go) and cannabis cue reactivity functional Magnetic Resonance Imaging tasks, as well as cannabis use, mood symptoms (including anxiety and sleep), and impulsivity in individuals with CUD+BD.

Timeline

Start

2017-10-01

Primary completion

2019-07-01

Completion

2019-07-01

Outcome

Missed primary endpoint

registry analysis (superiority test); Gabapentin vs Placebo Oral Capsule; p = 0.711 NCT03334721 ↗

Publications

• Prisciandaro JJ, Mellick W, Squeglia LM, Hix S, Arnold L, Tolliver BK. Results from a randomized, double-blind, placebo-controlled, crossover, multimodal-MRI pilot study of gabapentin for co-occurring bipolar and cannabis use disorders. Addict Biol. 2022 Jan;27(1):e13085. doi: 10.1111/adb.13085. Epub 2021 Aug 14.

Drugs

Indications