CanCope: Digital Intervention for Coping With Cannabis Craving

Not Applicable

Completed

Conditions: Cannabis Use

Interventions: Behavioral: CanCope

Registration Number: NCT05328362

Lead Sponsor: Trustees of Dartmouth College

Brief Summary: The CanCope Study is a micro-randomized trial conducted to gather evidence about and compare the effectiveness of a momentary intervention to help young adults cope with cannabis cravings as they attempt to reduce their use.

Detailed Description: The CanCope Study is designed to test the effectiveness of two distinct strategies (mindfulness and distraction) to cope with cannabis cravings in young adults (19 - 25 years) who are attempting to reduce their cannabis use. Cannabis use is determined using a single-item question about the number of days out of the past 30 days the individual used cannabis. Young adults who reported using cannabis \>10 out of the past 30 days, who were not pregnant or breastfeeding, and who were not currently in treatment for problems related to substance use were eligible to enroll in this four-week study.

The CanCope intervention was delivered to participants through the MetricWire app, which was available for download on the participants' personal smartphones. Participants were asked to complete five ecological momentary assessments (EMA) per day, which asked questions related to cannabis use including one question about current level of craving on a scale of 0 - 10. If a participant reported a craving level \>4, a message was sent via the app encouraging the participant to try a mindfulness or distraction coping strategy, or the participant received a thank-you for completing the EMA which served as an attention control.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 53

Inclusion Criteria

Used cannabis at least 10 out of the past 30 days

Exclusion Criteria

Currently pregnant or breastfeeding
Currently in treatment for problems related to substance use

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
CanCope attention control	CanCope	The CanCope intervention was delivered through the MetricWire app which was available to each participant on their personal smartphone. The intervention included a "push" component which was responsive to a participant's level of craving (based on self-report assessed via EMA) and sent messages to each participant via the MetricWire app according to a decision rule. MetricWire randomized delivery of the push component with a probability of 0.33 for receiving a mindfulness coping strategy, 0.33 for receiving a distraction coping strategy, and 0.33 for receiving a thank-you message (attention control) at each decision point when participants were available for the intervention.
CanCope mindfulness	CanCope	The CanCope intervention was delivered through the MetricWire app which was available to each participant on their personal smartphone. The intervention included a "push" component which was responsive to a participant's level of craving (based on self-report assessed via EMA) and sent messages to each participant via the MetricWire app according to a decision rule. MetricWire randomized delivery of the push component with a probability of 0.33 for receiving a mindfulness coping strategy, 0.33 for receiving a distraction coping strategy, and 0.33 for receiving a thank-you message (attention control) at each decision point when participants were available for the intervention.
CanCope distraction	CanCope	The CanCope intervention was delivered through the MetricWire app which was available to each participant on their personal smartphone. The intervention included a "push" component which was responsive to a participant's level of craving (based on self-report assessed via EMA) and sent messages to each participant via the MetricWire app according to a decision rule. MetricWire randomized delivery of the push component with a probability of 0.33 for receiving a mindfulness coping strategy, 0.33 for receiving a distraction coping strategy, and 0.33 for receiving a thank-you message (attention control) at each decision point when participants were available for the intervention.

Primary Outcome Measures

Name	Time	Method
Average Craving Level - Active vs. Control Messages	Minimum 2.8 hours after each decision point; Maximum 12.8 hours after each decision point	Participants were asked to rate their level of cannabis craving on a scale of 0 - 10 five times per day where higher scores indicate more craving. Participants were considered available for randomization when craving \>=4 and they clicked the intervention message in the study app. To determine the effect of messaging on craving, we will calculate the average craving level for each EMA eligible for intervention and randomized to receive an active coping strategy message or a control message. It was pre-specified based on a priori power analyses for this small pilot study to combine the "mindfulness-based coping strategies" and "distraction-based coping strategies" interventions in the "Active Message" Row". Craving levels will be averaged across randomized observations. There were up to 140 decision points (5 EMAs per day x 28 days) per participant for the intervention period.

Secondary Outcome Measures