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NCT07284173CompletedPhase 1

A Study to Learn if a Medicine That Reduces Stomach Acid Affects the Blood Level of Study Medicine PF-08049820 in Healthy Chinese Adults.

A Phase 1, Open Label, Fixed Sequence Study to Investigate the Effect of Rabeprazole on the Pharmacokinetics of PF-08049820 in Healthy Chinese Adult Participants.

Source: ClinicalTrials.gov · Last updated 9 Sept 2026

Brief summary (registry, in English)

This clinical study is designed to evaluate a study medicine called PF-08049820. The main aim is to understand how the body processes this medicine and whether giving it with another medicine, rabeprazole, affects how it behaves. The study will take in healthy adult participants aged 18 to 65 years who are not able to have children. Eligible participants must weigh more than 50 kilograms (110 pounds) and have a Body Mass Index (BMI) between 18.5 and 27.9. Each participant will receive two treatments: * One treatment with PF-08049820 alone * One treatment with PF-08049820 taken together with rabeprazole Both medicines will be taken by mouth. Participants will stay at the study clinic for a few days during each treatment period. During these stays, the study team will collect blood samples to see how the body absorbs and processes the medicine.

Status (registry)
Completed
Phase (registry)
Phase 1
Study type
Interventional
Enrollment
18 (actual)
First submitted
13 Nov 2025
Start date
3 Nov 2025
Primary completion date
18 Dec 2025
Lead sponsor
Pfizer
NCT number
NCT07284173

What you commit to

  • Study type: Interventional · Phase 1
  • Participants enrolled: 18
  • From 3 Nov 2025 to the primary completion date, 18 Dec 2025
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Current use of prohibited medications or inability/unwillingness to use required medications.

Other illness

  • History or evidence of significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or allergic diseases.
  • Positive test for HIV, hepatitis B (HBsAg), or hepatitis C (HCVAb).
  • Active or latent tuberculosis (TB) infection or inadequate treatment history for TB.
  • Any medical or psychiatric condition, including active suicidal ideation in the past year or suicidal behavior in the past 5 years, that may increase risk or interfere with study participation.

Who the study is looking for

  • Male and female participants of non-childbearing potential aged 18 to 65 years, inclusive, at screening who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and 12-lead electrocardiogram.
  • BMI of 18.5-27.9 kg/m2; and a total body weight \>50 kg (110 lb).
  • Participants who are willing and able to comply with all scheduled visits, treatment plans, laboratory tests, and other study procedures.

Age in the registry: 18 years to 65 years · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Beijing Friendship Hospital Affiliate of Capital University
Coordinator of this site? Confirm its status
BeijingChinaUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.