Clinical trial Recruiting at 1 site Interventional Ages 18 to 90 Men only

Using a mobile app to help men with HIV and stimulant use disorder

Official title: reSET for the Treatment of Stimulant Use in HIV Clinics: Care Optimization Supporting Treatment Adherence (COSTA)

Run by University of Miami · NCT05958017 · Data updated 2026-11-12

This study is testing a mobile app to see if it can help men living with HIV who also struggle with stimulant use disorder improve their treatment and stay healthy.

Quick facts

Study typeInterventional
Ages18 Years to 90 Years
SexMen only
Enrollment260 (estimated)
SponsorUniversity of Miami
Academic / other
Locations1 site (Miami, Florida)
StatusRecruiting
StartedMarch 4, 2025
Main results expectedJanuary 31, 2028
Study endsJanuary 31, 2028
Registry record updatedAugust 17, 2026
Trial IDNCT05958017 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men living with HIV who have a moderate to severe stimulant use disorder and are AHF patients in designated metro areas.

Probably not a fit

Patients currently undergoing drug treatment or those without access to a smartphone or stable internet may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the effectiveness of reSET, an FDA-authorized mobile therapeutic, in treating stimulant use disorder among men who have sex with men living with HIV. The approach focuses on optimizing care and supporting treatment adherence to maintain stable HIV viral load suppression. Participants will receive standard care alongside the reSET intervention, which aims to enhance their treatment outcomes. The study targets individuals who are Aids Healthcare Foundation patients in specific metro areas and screens for stimulant use disorder severity.

Why it matters

Potential benefit: If successful, this study could improve treatment adherence and health outcomes for men living with HIV who also struggle with stimulant use disorder.

How similar studies have gone: Other studies have shown promise in using mobile therapeutics for substance use disorders, indicating potential success for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Assigned male sex at birth and has not undergone any transgender hormonal treatment
2. Reports having had sex with a male in the past 12 months
3. Age 18 or older
4. Is affiliated with a study referral source (e.g., AHF clinic, registry, other healthcare program or clinic) or resides in a city or county where a participating healthcare center or health program is located
5. Screens positive for mild, moderate or severe stimulant use disorder in the last 12 months using the MINI
6. Reports that he is not currently in drug treatment
7. Is living with HIV
8. Reports having an active antiretroviral prescription
9. Have access to a smartphone or tablet with stable internet at least twice a week and can download applications to the smartphone or tablet
10. Able to understand English
11. Consents to participation in the study
12. Provides sufficient locator information
13. Identifies as non-Hispanic White, non-Hispanic Black/African American or Latinx/Hispanic
14. Has been in stable housing for the past 3 months and intends to remain housed for the next 15 months

Exclusion Criteria:

1. Patient appears to have diminished capacity to consent either because of cognitive impairment or severe psychiatric symptoms (e.g., mania, psychosis).
2. Persons that meet criteria for prisoner status will be excluded at baseline.
3. Patients who screen positive for moderate to severe opioid use disorder will be excluded from the study because effective pharmacological agents exist for the treatment of this disorder. These patients will be referred to community-based programs that provide specialized treatment for this disorder.
4. Participants will be excluded prior to randomization, if they do not complete at baseline the Time-Line Follow-Back or the laboratory visit.

Where it's running

  • University of Miami
    Miami, Florida, United States
    Recruiting

Study contacts

  • Principal investigator: Jose Szapocznik, PhD — University of Miami
  • Study coordinator: Mariya Petrova, PhD
  • Email: mpp72@miami.edu
  • Phone: 7863386432

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.