GPS tracking to support Hepatitis C treatment for people experiencing unsheltered homelessness.
Official title: Effects of GPS Tracking on Patient Adherence to Hepatitis C Treatment Among People Experiencing Unsheltered Homelessness
Run by University of Southern California · NCT06870019 · Data updated 2026-11-12
This trial tests whether giving GPS trackers to people with Hepatitis C who are living unsheltered and receiving street medicine helps them stick to their daily hepatitis C medication.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 124 (estimated) |
| Sponsor | University of Southern California Academic / other |
| Locations | 2 sites (Alhambra, California and 1 other locations) |
| Status | Recruiting |
| Started | August 8, 2025 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2027 |
| Registry record updated | August 29, 2025 |
| Trial ID | NCT06870019 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults diagnosed with Hepatitis C who are unsheltered, speak English or Spanish, receive street medicine care, meet AASLD simplified-treatment criteria, and have not previously started HCV treatment are ideal candidates.
✕Probably not a fit
People who have already begun HCV treatment, have decompensated cirrhosis or other exclusion criteria (pregnancy, prior liver transplant, active hepatocellular carcinoma, or HBV infection), or who are not reachable in the study locations are unlikely to benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized interventional project enrolls people with confirmed Hepatitis C who are experiencing unsheltered homelessness and receiving street medicine in Southern California. Participants are randomly assigned to receive standard Hepatitis C care delivered by street medicine teams with or without a GPS tracker device to assist outreach and follow-up. The primary outcome is medication adherence and treatment completion over the typical 8–12 week therapy course, with mixed-methods data collection to understand barriers and acceptability. The protocol emphasizes ethical, privacy-conscious use of location technology and practical approaches to longitudinal follow-up in this population.
Why it matters
Potential benefit: If successful, GPS-assisted outreach could increase adherence and completion of curative hepatitis C treatment among unsheltered individuals, reducing illness and transmission.
How similar studies have gone: Street medicine programs have shown high engagement in HCV care (for example, USC pilot data with 93% successful follow-up), but the use of GPS trackers specifically for improving adherence is relatively novel with limited prior evidence.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Diagnosed with Hepatitis C infection * Experiencing unsheltered homelessness at study initiation * Speaks English or Spanish * Receiving street medicine care * Meet the American Association for the Study of Liver Diseases (AASLD) criteria for simplified treatment of Hepatitis C Exclusion Criteria: * Prior engagement in HCV treatment * Decompensated cirrhosis; HBsAg positive * Current pregnancy; Known or suspended hepatocellular carcinoma * Prior liver transplantation
Where it's running
-
USC Street Medicine
Alhambra, California, United States Recruiting -
Ventura County Medical Center
Ventura, California, United States Recruiting
Study contacts
- Principal investigator: Camilo Zaks, MD — University of Southern California, Keck School of Medicine of USC, Department of Family Medicine, USC Street Medicine
- Study coordinator: Alexis Coulourides Kogan, PhD
- Email: acoulour@usc.edu
- Phone: 626-457-4207
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.