Recent Updates
Recently added Catalysts

PF-08653944

Phase 3

Obesity | Small molecule | Metabolic |Pfizer, Inc.|Last Updated: Sep 4, 2026

Target and mechanism

Molecular targetGLP-1 receptor
Target classReceptor
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials3
Total Enrollment2,020

FDA Designations

No designations recorded

Clinical trial landscape

PF-08653944 · 5 trials · 7 indications

Phase 3 2Phase 1 3
NCT07595549A Study to Learn About the Study Medicine Called Berobenatide (PF-08653944) in People With Overweight or ObesityObesity
RECRUITING954 Analytics
NCT07400653A Study to Learn About the Study Medicine (PF-08653944) in People With Obesity or Overweight and Type 2 Diabetes (T2D)Obesity
ACTIVE NOT_RECRUITING1,044 Analytics
PHASE3RECRUITING
A Study to Learn About the Study Medicine Called Berobenatide (PF-08653944) in People With Overweight or Obesity
ObesityUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Learn About the Study Medicine (PF-08653944) in People With Obesity or Overweight and Type 2 Diabetes (T2D)
ObesityUnlock trial analytics

Study Endpoints

Primary Endpoints

Percent change from baseline in body weight
Baseline, Week 72
Pharmacokinetics (PK): Maximum observed plasma concentration (Cmax) of PF-08653944
Day 1 pre-dose through approximately 11 Weeks after last dose of study intervention.
PK: Area under the plasma concentration (AUC) of PF-08653944
Day 1 pre-dose through approximately 11 Weeks after last dose of study intervention.
Acetaminophen Pharmacokinetic (PK) Parameters: Maximum observed plasma concentration (Cmax)
Day 1 pre-dose through approximately 11 Weeks after last dose of study intervention.

To assess the effect of multiple SC doses of PF-08653944 on the plasma PK profile of acetaminophen, a marker for gastric emptying, in healthy adult participants with overweight or obesity.

Acetaminophen PK parameters: Area under the plasma concentration (AUC)
Day 1 pre-dose through approximately 11 Weeks after last dose of study intervention.

To assess the effect of multiple SC doses of PF-08653944 on the plasma PK profile of acetaminophen, a marker for gastric emptying, in healthy adult participants with overweight or obesity.

Acetaminophen PK parameters: Time to Maximum concentration (Tmax)
Day 1 pre-dose through approximately 11 Weeks after last dose of study intervention.
Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) of PF-08653944
Up to 85 days

To assess the relative bioavailability of SC to the thigh or upper arm compared to the abdomen

PK: Maximum Observed Concentration (Cmax) of PF-08653944
Up to 85 days

To assess the relative bioavailability of SC to the thigh or upper arm compared to the abdomen

Secondary Endpoints

Change from baseline in body weight
Baseline, Week 72
Change from baseline in waist circumference
Baseline, Week 72
Percentage of Participants achieving ≥5% of body weight reduction from baseline
Baseline, Week 72
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment Arm 1EXPERIMENTALParticipants will receive PF-08653944 by Subcutaneous Injection.
Treatment Arm 2EXPERIMENTALParticipants will receive PF-08653944 by Subcutaneous Injection.
Treatment Arm 3EXPERIMENTALParticipants will receive PF-08653944 by Subcutaneous Injection.
Treatment Arm 4EXPERIMENTALParticipants will receive PF-08653944 by Subcutaneous Injection.
PlaceboPLACEBO_COMPARATORParticipants will receive matching placebo by Subcutaneous Injection.
Group 1EXPERIMENTALParticipants without Hepatic Impairment (HI) will receive a single dose of PF-08653944, administered as Subcutaneous (SC) injection.
Group 2EXPERIMENTALParticipants with mild HI will receive a single dose of PF-08653944, administered as SC injection.
Group 3EXPERIMENTALParticipants with moderate HI will receive a single dose of PF-08653944, administered as SC injection.
Group 4EXPERIMENTALParticipants with severe HI will receive a single dose of PF 08653944, administered as SC injection.
Period 1EXPERIMENTALParticipants will receive a single oral dose of acetaminophen.
Period 2EXPERIMENTALParticipants will receive SC dose of PF-08653944 and single oral dose of acetaminophen.
Period 3EXPERIMENTALParticipants will receive SC dose of PF-0865394.
Period 4EXPERIMENTALParticipants will receive SC dose of PF-0865394.
Period 5EXPERIMENTALParticipants will receive SC dose of PF-08653944 and single oral dose of acetaminophen.
Period 6EXPERIMENTALParticipants will receive single SC dose of PF-08653944 and single oral dose of acetaminophen.
Treatment 1EXPERIMENTALParticipants will receive a single subcutaneous (SC) dose of PF-08653944 on Day 1 administered to the abdomen.
Treatment 2EXPERIMENTALParticipants will receive a single SC dose of PF-08653944 on Day 1 administered to the thigh.
Treatment 3EXPERIMENTALParticipants will receive a single SC dose of PF-08653944 on Day 1 administered to the upper arm.
Treatment 4 (Optional)EXPERIMENTALJapanese participants will receive a single SC dose of PF-08653944 on Day 1 administered to the abdomen.

Interventions

NameTypeDescription
PF-08653944DRUGBy Subcutaneous Injection
PlaceboOTHERBy Subcutaneous Injection
AcetaminophenDRUGOral suspension
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites50

Inclusion Criteria: * Aged ≥18 years. * BMI of: ≥30 kg/m2 or ≥27.0 kg/m2 to \<30.0 kg/m2 and must have at least 1 of the following weight-related co-morbidities: hypertension, dyslipidemia, obstructive sleep apnea, cardiovascular disease, or T2D. Exclusion Criteria: * Have a self-reported body we...

Countries:United StatesBrazilCanadaJapanSouth KoreaArgentinaBulgariaCzechiaGermanyPolandRomaniaSlovakiaSpainUnited Kingdom
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWSep 4, 2026NCT07595549lastUpdatePostDate: changed
LOWSep 4, 2026NCT07595549lastUpdatePostDate: changed
LOWAug 17, 2026NCT07595549lastUpdatePostDate: changed
HIGHAug 17, 2026NCT07400679Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWAug 17, 2026NCT07595549lastUpdatePostDate: changed
HIGHAug 17, 2026NCT07400679Status: ACTIVE_NOT_RECRUITING → COMPLETED
MEDIUMJul 27, 2026NCT07400653Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 27, 2026NCT07400653Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 27, 2026NCT07400653Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 22, 2026NCT07595549lastUpdatePostDate: changed
LOWJul 22, 2026NCT07595549lastUpdatePostDate: changed
MEDIUMJul 9, 2026NCT07508241Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 9, 2026NCT07508241Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 8, 2026NCT07595549lastUpdatePostDate: changed
LOWJul 8, 2026NCT07400653lastUpdatePostDate: changed
LOWJul 8, 2026NCT07595549lastUpdatePostDate: changed
LOWJul 8, 2026NCT07400653lastUpdatePostDate: changed
LOWJul 6, 2026NCT07400653lastUpdatePostDate: changed
LOWJul 6, 2026NCT07400679lastUpdatePostDate: changed
LOWJul 6, 2026NCT07400653lastUpdatePostDate: changed

Frequently asked questions about PF-08653944

What is PF-08653944 used for?

PF-08653944 is an investigational small molecule being studied for use in people who are overweight or have obesity, including those with type 2 diabetes. It is also being evaluated in healthy adults to understand how the body processes the medicine and its effects on stomach emptying.

What does PF-08653944 target?

PF-08653944 targets the GLP-1 receptor, a protein involved in regulating blood sugar and appetite. By acting on this receptor, the drug is being studied for its potential effects in overweight and obesity, including in people with type 2 diabetes.

Who makes PF-08653944?

PF-08653944 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The company is conducting clinical trials to evaluate the drug's safety and effects in various populations.

What phase is PF-08653944 in?

PF-08653944 is in Phase 1 clinical development, with multiple early-stage trials underway or completed. One Phase 3 trial is listed as active but not recruiting, though the drug remains investigational and has not been approved by regulatory authorities.

What clinical trials is PF-08653944 in?

PF-08653944 is being studied in several trials, including NCT07400653, a Phase 3 study in people with obesity or overweight and type 2 diabetes; NCT07400679, a completed Phase 1 study on drug absorption; NCT07508241, a Phase 1 study on stomach emptying; and NCT07519135, a Phase 1 study in people with reduced liver function.

Is PF-08653944 the same as other GLP-1 drugs?

PF-08653944 is a distinct investigational small molecule that targets the GLP-1 receptor, similar to other drugs in this class. However, it is not the same as any approved GLP-1 receptor agonist, and no alternative names for PF-08653944 have been disclosed.