๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-06-11

A Study to Learn How Different Forms of the Study Medicine Called PF-08049820 Are Absorbed and Eliminated in Healthy Adults (NCT07597928)

A PHASE 1, OPEN-LABEL, RANDOMIZED, 5-PERIOD, 6-SEQUENCE, CROSSOVER STUDY TO COMPARE THE SINGLE-DOSE PHARMACOKINETICS OF ONE IMMEDIATE RELEASE AND TWO MODIFIED-RELEASE FORMULATIONS OF PF-08049820 ADMINISTERED ORALLY UNDER FASTED AND FED CONDITIONS (PART A), AND A FIXED SEQUENCE STUDY TO ASSESS THE EFFECT OF RABEPRAZOLE ON THE PHARMACOKINETICS OF PF-08049820 (PART B), IN HEALTHY ADULTS

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

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

The purpose of this study is to learn how different forms of the study medicine called PF-08049820 are absorbed and eliminated in healthy adults. The study will assess whether the study medicine is absorbed differently when taken with or without food. It will also assess absorption when the study medicine is taken with another medicine called rabeprazole. Rabeprazole is an FDA approved medicine that reduces stomach acid. The study has two parts. In Part A, participants will take three forms of study medicine, one after the other. They will take each form either with or without food for a total of five doses. Each dose will be separated by a few days. Participants will stay in the clinic for about two weeks. They will receive a telephone follow-up call about a month after the last dose. In Part B, participants will take three forms of study medicine. They will take each one with or without food, and with or without another medicine called rabeprazole. This means they will take a total of six doses of study medicine. Each dose will be separated by a few days. Participants will stay at the clinic for about three weeks, and about a month after their last dose. They will get a follow-up phone call. Part B may or may not be conducted depending on the results from Part A. The study is seeking participants who: 1. Are males or females, 2. Are at least 18 years of age, 3. Have a body mass index (BMI) 16 to 32 kilograms per meter squared (kg/m2). Have a total body weight of more than 50 kilograms (kg) (110 pounds).

Who can join: Review the eligibility criteria below.

Location: Pfizer Clinical Research Unit - New Haven โ€” New Haven, Connecticut

Age range: 18 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 (1 Sites)

  • Pfizer Clinical Research Unit - New Haven โ€” New Haven, Connecticut

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 Adults 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†—