Can a picture replace a drug test? new study aims to find out
Knowledge-focused
Not yet recruiting
This study will test a new visual scale designed to help people who use methamphetamine estimate how much they use each day. Researchers will compare the scale's results with hair samples and other methods to see if it is reliable and easy to use. About 100 adults aged 20-40 who …
Sponsor: Phillip Coffin, MD, MIA • Aim: Knowledge-focused
Last updated May 26, 2026 12:06 UTC