Couples Motivational Interviewing to Reduce Drug Use and HIV Risk in Vulnerable Male Couples

This study tests whether a couples-based motivational interviewing program — a supportive counseling approach designed for both partners — can reduce drug use and HIV risk behaviors in male couples where at least one partner uses drugs or engages in risky sexual behavior. **You may be eligible if...** - You are a cisgender male in a relationship with another cisgender male for at least 3 months - The index (primary) participant is between 18 and 55; the partner can be any age 18 or older - At least one of you is HIV-negative (confirmed by rapid test) - At least one of you has used drugs in the past 30 days (cocaine, opiates, stimulants, psychedelics, ketamine, GHB, ecstasy, or misused prescription medications) - The index participant has had condomless anal sex with a casual partner or a partner of different HIV status in the past 30 days - You live in the United States and speak and read English **You may NOT be eligible if...** - Either partner has signs of serious mental illness or cognitive impairment - Either partner is currently suicidal or has homicidal thoughts Talk to your doctor to see if this trial is right for you.