An App to Reduce Cannabis Use Among Emerging Adults

University of Michigan

Status: Completed

Conditions: Cannabis Use

Treatments: Other: Just-In-Time-Adaptive-Intervention (JITAI)

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT05824754

5P50DA054039-02 (U.S. NIH Grant/Contract)

HUM00222194

Details and patient eligibility

About

This study is being completed to pilot prevention methods to promote wellness and reduce risky behaviors, including the use of substances such as cannabis. This study will help researchers learn about ways of delivering this information that is both appealing and helpful to young adults who use mobile apps.

Enrollment: 122 patients

Sex: All

Ages: 18 to 25 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Reside in the US
• Speak and read English
• Have a smartphone on which the app can be downloaded
• Screen positive for cannabis use 3 or more times each week over the past month
• Report motivation to change cannabis as 1 or higher (using scale of 0-10)
• Meet Study verification criteria (i.e., use of CAPTCHA, IP address checks)

Exclusion criteria

• Use of Medical Cannabis
• Failure to meet study verification criteria

Trial design

Primary purpose: Other

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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122 participants in 1 patient group

JITAI

Experimental group

Description:

Experimental: Within-participant micro-randomization Twice daily in the study, a participant is assigned to receive a message or no message. The micro-randomization will be performed by a reinforcement learning algorithm based on the participant's engagement with the intervention.

Treatment:

Other: Just-In-Time-Adaptive-Intervention (JITAI)