Drink dye test could stop fake urine samples in addiction clinics
Knowledge-focused
Not yet recruiting
This study tests if a harmless dye (fluorescein sodium) added to a drink can prove urine samples are real and not tampered with. About 114 adults with substance use disorder will drink either a dyed or plain Gatorade, then provide a urine sample 15 minutes later. Researchers will…
Phase: PHASE3 • Sponsor: UpTru Inc. • Aim: Knowledge-focused
Last updated May 19, 2026 05:00 UTC