Understanding how people reduce or stop injecting xylazine-adulterated fentanyl

Xylazine exposure and transitions to low-frequency injecting and injection cessation

NIH-funded research Yale University · NIH-10950730

This study is looking at how people in Connecticut who use fentanyl mixed with xylazine can reduce or stop their injecting habits, especially since the pandemic, and it aims to understand their experiences to help improve support and safety for others facing similar challenges.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionYale University NIH-funded
Lab location1 site (New Haven, United States)
Project IDNIH-10950730 on NIH RePORTER

What this research studies

This research investigates how individuals using xylazine-adulterated fentanyl transition to injecting less frequently or stop injecting altogether. It focuses on the experiences of people in Connecticut, a state significantly affected by this drug issue, particularly since the COVID-19 pandemic. Through qualitative methods, the study aims to gather insights into the social and environmental factors influencing these transitions, which could help improve harm reduction strategies and support services for those affected. The findings may also address the risks of infections and overdose associated with drug use.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals in Connecticut who are currently using xylazine-adulterated fentanyl and are either reducing their injection frequency or considering cessation.

Not a fit: Patients who do not use xylazine-adulterated fentanyl or are not engaged in injection drug use may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved strategies for reducing drug-related harms and supporting individuals in their journey to reduce or cease injection drug use.

How similar studies have performed: While there is emerging documentation of reduced injection practices among users of fentanyl, this specific focus on xylazine-adulterated fentanyl and its unique challenges is relatively novel.

Where this research is happening

New Haven, 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 2026-06-13 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.