A new test to monitor how well patients are sticking to their HIV prevention medication.

A novel REverSe Transcriptase Chain Termination (RESTRICT) assay for near-patient, objective monitoring of long-term PrEP adherence

NIH-funded research University of Washington · NIH-10980562

This study is testing a new way to check if people are taking their HIV prevention medication regularly by looking at blood samples, so doctors can get a clearer picture of how well the treatment is working for their patients.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Washington NIH-funded
Lab location1 site (Seattle, United States)
Project IDNIH-10980562 on NIH RePORTER

What this research studies

This research focuses on improving the monitoring of adherence to pre-exposure prophylaxis (PrEP) for HIV prevention. It aims to develop a novel assay called the RESTRICT assay, which measures drug levels in patients more accurately than traditional self-reports. By analyzing blood samples for long-term drug metabolites, the study seeks to provide healthcare providers with reliable data on patient adherence. The research will also evaluate how acceptable and feasible this new testing method is for both patients and providers in clinical settings.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals aged 21 and older who are using or considering using PrEP for HIV prevention.

Not a fit: Patients who are not using PrEP or are under 21 years old may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to better monitoring of PrEP adherence, ultimately improving HIV prevention efforts.

How similar studies have performed: Other research has shown promise in developing objective adherence monitoring tools for PrEP, making this approach a potentially significant advancement.

Where this research is happening

Seattle, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Acquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency Syndrome Virus
Last reviewed 2026-06-10 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.