Alcohol, cannabis, and other illegal drug substance use disorder Mental and Behavioural Disorders
Conditions
Interventions
The aim of the study is to assess the feasibility of using the final version of the AfterCare app in clinical contexts, and to obtain preliminary data on clinical effectiveness for preventing relapse
n = 45) and the Delayed App Use (DAU
n = 45) conditions. In the IAU condition, study participants will gain full access to the app the same day that the app is installed on the mobile phone at the third treatment session and for the next
Sponsors
Aarhus University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Aged 18 – 30 years old 2. Own a mobile with a data plan 3. Enrolling in outpatient treatment for alcohol or cannabis use at one of the participating sites 4. Provision of informed consent to study participation 5. Attends the third treatment session after enrollment in treatment for the provision of the app
Exclusion criteria
Exclusion criteria: 1. Severe mental illness (e.g., psychosis) or dangerous behavior (e.g., aggression) 2. Severe neuropsychological disorder or cognitive dysfunction 3. Not willing or able to give informed consent to participate in the study 4. Does not speak or understand Danish in a way that makes it possible to participate in the project 5. Took part in a prior stage of the project that focused on the app development
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Clinical effect: 1. Seven-day alcohol use measured using the Time Line Follow Back questionnaire (TLFB), at baseline, and 6, and 12-week follow-ups 2. Thirty-day alcohol use measured using a single-item question (How many days have you drank alcohol in the last month?), at baseline, and 6, and 12-week follow-ups 3. Seven-day cannabis use measured using the Time Line Follow Back questionnaire (TLFB), at baseline, and 6, and 12-week follow-ups 4. Thirty-day cannabis use measured using a single-item question (How many days have you used any cannabis products in the last month?), at baseline, and 6, and 12-week follow-ups Feasibility and usability: Average use of app measured using the number of clicks on different app functions in the first 6 weeks of use | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Seven-day illicit drug use measured using a single-item question (How many days have you used any illicit drugs, except for cannabis, in the last 7 days?), at baseline, and 6, and 12-week follow-ups 2. Thirty-day illicit drug use measured using a single item question (How many days have you used any illicit drugs, except for cannabis, in the last month), at baseline, and 6, and 12-week follow-ups 3. Depressive symptoms in the last 2 weeks measured using the Patient Health Questionnaire-2 (PHQ-2) and anxiety symptoms in the last 2 weeks measured using the Generalized Anxiety Disorder 2-item (GAD-2), at baseline, and 6, and 12-week follow-ups | — |
Countries
Denmark
Outcome results
None listed