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N/A Completed N=233 Randomized Prevention

Mobile Enhanced Prevention Support for People Leaving Jail

HIV · Sexually Transmitted Diseases, Bacterial · Hepatitis C · Substance Use Disorder
Source: ClinicalTrials.gov NCT04036396 ↗
Enrolled (actual)
233
Serious AEs
0.0%
Results posted
Feb 2026
Primary outcomePrimary: Number of Participants Establishing a Primary Care Provider Who Can Prescribe PrEP (Pre-exposure Prophylaxis) — 82; 90 Participants — p=0.780

Summary

This study will provide HIV prevention and related support services to men who have sex with men and transgender women who have substance use disorders and are either leaving jail or recently released from jail. The researchers will compare the utilization of HIV prevention and other support services between individuals who receive routine case management provided following enrollment to those who have access to GeoPassport, a global position service (GPS)-based mobile app, incentives, and peer mentor support.

Outcome Measures

OutcomeResultp-value
PRIMARY
Number of Participants Establishing a Primary Care Provider Who Can Prescribe PrEP (Pre-exposure Prophylaxis)
82; 90 0.780
PRIMARY
Number of Participants Who Initiate PrEP Regimen
12; 28 0.0006 sig
PRIMARY
Number of Participants Who Demonstrate Minimal Adherence to PrEP
10; 26 0.1191
PRIMARY
Number of Participants Who Remain on PrEP for at Least 3 Months.
7; 17 0.9689
PRIMARY
Number of Participants Who Report an HIV Test Within 3 Months of a Follow-up
44; 55; 32; 50; 31; 33 0.1683
PRIMARY
Number of Participants Who Undergo a Test for Gonorrhea, Syphilis, and Chlamydia Within 6 Months of a Follow-up
33; 41; 32; 40; 28; 29 0.5367
PRIMARY
Number of Participants Who Undergo a Test for Hepatitis C
80; 85 0.620
PRIMARY
Number of Participants Obtaining Treatment for Substance Use Disorders (SUDs) in the Community
25; 23 .6621
PRIMARY
Number of Participants Who Remain Engaged in Treatment for Substance Use Disorders (SUDs) in the Community,
11; 4 0.0635
SECONDARY
Number of Participants in Each Arm Receiving Care and Treatment for Newly Diagnosed HIV or HCV Infections.
2; 3
SECONDARY
Number of Participants Who Recidivate
29; 35
SECONDARY
Number of Reincarcerations Among Those Who Recidivate
1; 2

Eligibility Criteria

Inclusion Criteria

  • housed in K6G unit or within 12 months post-release from incarceration
  • ages 18-49 years
  • screens positive for Substance Use Disorder (SUD), or has sought or received SUD treatment at any time starting 12 months before the most recent incarceration until the present day.
  • reports sexual intercourse with a male or a male-to-female transgender woman in the six months prior to jail entry
  • if recruited in jail, is likely to be remain either in custody for at least four more days, but less than three more months based on scheduled court dates, current sentence, treatment plan, etc.
  • has not received an HIV diagnosis (based on self-report)
  • plans to reside in Los Angeles County for the 12 months following enrollment

Exclusion Criteria

  • does not have a smartphone and is not willing to obtain one post-release,
  • is not able to speak and understand English, and
  • does not have sufficient reading skills to operate a mobile app
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT04036396). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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