๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-04-20

A Study to Learn About the Medicine Called PF-08653944 in People With and Without Reduced Liver Function (NCT07519135)

A PHASE 1, OPEN-LABEL, SINGLE-DOSE, PARALLEL-GROUP STUDY TO EVALUATE THE PHARMACOKINETICS, SAFETY AND TOLERABILITY OF PF-08653944 IN ADULTS WITH AND WITHOUT VARYING DEGREES OF HEPATIC IMPAIRMENT

๐ŸŸข Recruiting Phase1 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: Pfizer

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

This study is being done to learn more about an investigational medicine called PF-08653944. The goal is to understand how the body handles the medicine and to check its safety after a single dose. The study includes adults with normal liver function and adults who have mild, moderate, or severe liver problems. By comparing these groups, researchers want to understand whether liver function changes how the medicine behaves in the body. People who join the study will receive one injection of the study medicine. They will stay at the study clinic for a short time and return for follow-up visits so doctors can do blood tests, physical exams, and safety checks. This study is not expected to provide direct medical benefit to participants. The information collected will help researchers develop future treatments and understand how this medicine may be used safely in people with liver disease.

Who can join: Review the eligibility criteria below.

Location: Floridian Clinical Research โ€” Miami Lakes, Florida

Age range: 18 Years to 74 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (3 Sites)

  • Floridian Clinical Research โ€” Miami Lakes, Florida
  • Orlando Clinical Research Center โ€” Orlando, Florida
  • Genesis Clinical Research โ€” Tampa, Florida

๐Ÿ“ž Contact the Study Coordinator

Phone: (800) 718-1021

Email: ClinicalTrials.gov_Inquiries@pfizer.com

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

Explore by condition: All Healthy clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—