Study of an Oral Fluid Testing Approach

The registry criteria, word for word

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

• Are you between 18 and 35 years old?YesNo

What the trial wants to find out

The purpose of this study is to identify and evaluate oral fluid testing as a biologic measure of cannabis use days that can be assessed remotely. The researchers will conduct this fully virtual study among a community sample of 200 individuals aged 18-35 years who have used cannabis at least 1 time per week on average in the past 30 days. Participants will complete oral fluid (saliva) tests, urine tests, and Timeline Follow-back interviews (self-report) that indicate their recent cannabis use (delta-9-THC). Participants will present for 3 virtual study visits across ~ 3-4 weeks and be asked to complete activities in between: Study Visit 1 (Day 0; informed consent, baseline survey, TLFB interview), Study Visit 2 (~ Day 7; TLFB interview, urine testing), 6 days of at-home videorecorded oral fluid testing, Study Visit 3 (~ Day 28; TLFB interview, urine test, oral fluid test, survey, interview).

The group in the trial

• Prospective community sample

  Community sample of 200 younger adults aged 18-35 years who have used cannabis in the past 30 days at baseline, report use frequency of ≥1x/week at baseline, and have a positive test for urinary 11-nor-9-carboxy-delta-9-tetrocannabinol (THC-COOH) at the Day-7 visit

  Treatment: Biologic testing for THC