Skip to content

A Study to Learn How the Study Medicine Called PF-08653944 is Taken up Into the Blood in Adults With Overweight or Obesity

A PHASE 1, OPEN-LABEL, RANDOMIZED, SINGLE DOSE, PARALLEL GROUP STUDY TO ASSESS RELATIVE BIOAVAILABILITY OF PF-08653944 WHEN ADMINISTERED ACROSS DIFFERENT INJECTION SITES IN ADULTS WITH OVERWEIGHT OR OBESITY

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07400679
Enrollment
48
Registered
2026-02-10
Start date
2026-02-04
Completion date
2026-07-08
Last updated
2026-08-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy, Obesity, Overweight

Keywords

Obesity, Overweight

Brief summary

This study is being done to learn how the study medicine affects the body and how safe it is for people who take it. The researchers will look at a number of health tests, including blood tests such as calcitonin, amylase, and lipase, because similar medicines have sometimes caused changes in these tests. This study is seeking participants who are: * Adults who are obese or overweight with weight-related health conditions, and * Meet health and other checks assessed by the study doctor. The study team will give a single dose of the study treatment at the clinic to the participants. At each study visit, blood samples will be collected, vital signs will be checked, and the study team will ask about any reactions or health changes. Vital signs are basic measurements that show how well the body is working. They help the study team quickly understand a participant's overall health. These usually include body temperature, heart rate, breathing rate, and blood pressure. The study involves multiple clinic visits at a study site over the length of the study. The information collected will help researchers understand how the study medicine works and whether it is safe.

Interventions

Solution for injection

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Participants 18 years of age or older at Screening who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and ECGs. * BMI of 27-45 kg/m2 ; and a total body weight \>50 kg (110 lb). * For Japanese participants only: BMI of 20-45 kg/m2 and a total body weight \>50 kg (110 lb) and must have 4 biological Japanese grandparents who were born in Japan. Key

Exclusion criteria

* Pregnant or breastfeeding women, or those planning pregnancy during the study. * Clinically significant medical conditions including hematologic, renal, endocrine, pulmonary, gastrointestinal (including pancreatitis, gallbladder disease, clinically relevant gastric emptying disorders), cardiovascular, hepatic, psychiatric, neurologic, or severe allergic diseases. * Personal or first-degree family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2 (MEN2), or suspected MTC. * Active or recent suicidal ideation in the past year, suicidal behavior within the past 5 years, or any psychiatric condition that increases risk in the investigator's judgment. * Clinically significant gastric emptying abnormality or chronically taking drugs that directly affect GI motility. * Acute gastrointestinal symptoms at screening or Day -1. * Known hypersensitivity to PF-08653944, GLP-1 receptor agonists, or any excipients. * Prior participation in any study involving PF-08653944 (formerly MET097) with at least one dose received.

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) of PF-08653944Up to 85 daysTo assess the relative bioavailability of SC to the thigh or upper arm compared to the abdomen
PK: Maximum Observed Concentration (Cmax) of PF-08653944Up to 85 daysTo assess the relative bioavailability of SC to the thigh or upper arm compared to the abdomen

Secondary

MeasureTime frame
Number of Participants With Treatment Emergent Adverse Events (TEAEs)Up to 85 Days

Countries

United States

Contacts

STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026