This study will develop and initially test an intervention
designed to help young adults who regularly use marijuana to reduce
Principal Investigator: R.
Lorraine Collins, PhD
Co-investigators: Leonard Epstein, PhD and John
Leddy, MD, UB School of Medicine; Jihnhee
Yu, PhD, UB School of Public Health and Health Professions.
Funding Agency: National Institute on Drug Abuse (NIDA),
National Institutes of Health
Abstract: Currently, marijuana (MJ) is the most popular
illicit drug, with prevalence studies indicating increasing use
among young adults. Even so, there are few effective interventions
to help MJ users reduce their intake to avoid negative
consequences, including MJ dependence. This project involves a
Stage 1 efficacy study to develop and initially test an innovative
intervention to reduce MJ use among young adults who regularly use
MJ (> three episodes/week).
The aims of this project are:
- To develop an intervention that consists of four, 60-minute,
in-person sessions composed of personalized feedback as well as a
smartphone application (app) that promotes exercise/physical
activity (EA) as an alternative to MJ use. The EA, which will be
designed to specifically appeal to young adults, will provide a
readily-accessible, flexible, and convenient platform for
personalized information and reminders that promote exercise/PA as
a positive alternative to MJ use in ongoing daily life.
- To conduct a pilot/efficacy study of the four-week MCU+EA
intervention vs. a MCU-only control condition. During the one-week
baseline, four-week intervention phase, and one-, three- and
six-month follow-ups, all participants will use the smartphone app
to provide real-time data on MJ-related variables and wear
accelerometers to provide PA data. Multilevel modeling will be used
to test our hypothesis that the MCU+EA intervention, compared to
MCU-only control, will produce greater decreases in quantity and
frequency of MJ use (and related MJ problems) at post-intervention
and at each follow-up.