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PF-07328948

Phase 2

Heart Failure | Small molecule | Cardiovascular |Pfizer, Inc.|Trials Updated: May 27, 2026

PF-07328948 development status

Highest phase Phase 2
Registered trials 6 across 1 sponsor since Dec 2022

PF-07328948 target and mechanism

ModalitySmall molecule

Also known as Oral [14C]PF-07328948, Low Dose PF-07328948

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment620

FDA Designations

No designations recorded

PF-07328948 clinical trials

PF-07328948 · 1 trial · 1 indication

Phase 2 1
NCT06991257A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-HF)Heart Failure
RECRUITING620 Analytics
PHASE2RECRUITING
A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-HF)
Heart FailureUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Clinical Events
over 36 weeks

Adjudicated cardiovascular death and worsening heart failure events through 36 weeks.

Change From Baseline in 6-Minute Walk Test (6MWD)
Baseline, week 36 post-dose

A submaximal exercise test that measures the distance the participant can walk within prescribed time of 6 minutes. Participants are asked to perform the test at a pace comfortable to them with as many breaks as needed. The total distance walked is recorded.

Change From Baseline in Kansas City Cardiomyopathy Questionnaire Overall Total Symptom Score (KCCQ-23 TSS)
Baseline, week 36

KCCQ is a 23-item heart-failure specific questionnaire quantified into the following scores: symptom frequency, symptom burden, symptom stability, physical limitations, social limitations, quality of life, and self-efficacy, total symptom score, overall summary score, and clinical summary score. To facilitate interpretation, all scores are presented on a scale of 0 to 100 points, with lower scores indicating more severe symptoms and/or limitations, and a score of 100 indicating no symptoms, no limitations, and excellent quality of life.

Secondary Endpoints

Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
Baseline, up to week 40
Change From Baseline in Kansas City Cardiomyopathy Questionnaire Overall Symptom Score (KCCQ-23 TSS) and physical limitation in participants taking PF-07328948 vs. placebo on HF disease-specific health status related to HFmrEF/HFpEF.
Baseline, week 36
Change From Baseline in 6-minute walk test distance (6MWD) in participants taking PF-07328948 vs. placebo on HF disease-specific health status related to HFmrEF/HFpEF.
Baseline, week 36
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ARM 1PLACEBO_COMPARATORPlacebo Participants will receive Placebo for up to 36 weeks
ARM 2EXPERIMENTALLow dose PF-07328948 Participants will receive PF-07328948 for up to 36 weeks
ARM 3EXPERIMENTALMedium dose PF-07328948 Participants will receive PF-07328948 for up to 36 weeks
ARM 4EXPERIMENTALHigh dose PF-07328948 Participants will receive PF-07328948 for up to 36 weeks

Interventions

NameTypeDescription
PlaceboDRUGARM 1
Low Dose PF-07328948DRUGARM 2
Medium Dose PF-07328948DRUGARM 3
High Dose PF-07328948DRUGARM 4
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Eligibility Criteria

Age Range18 Years to 79 Years
SexALL
Healthy VolunteersNo
Study Sites142

This study is seeking participants who are: Key Inclusion Criteria include: * aged 18 years to \< 80 years * clinically confirmed to have a diagnosis of heart failure for at least 3 months * New York Heart Association Class II-IV symptoms * left ventricular ejection fraction greater than 40% * Kan...

Countries:United StatesBrazilBulgariaCanadaChinaCzechiaFranceHungaryJapanPolandPuerto RicoSpainUnited Kingdom
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Frequently asked questions about PF-07328948

What is PF-07328948?

PF-07328948 is an investigational small molecule medicine being developed by Pfizer for the treatment of heart failure. It is currently in Phase 2 clinical development and has not been approved by any regulatory authority. It is being studied in adults aged 18 years and older with heart failure.

What is PF-07328948 used for?

PF-07328948 is being studied for the treatment of heart failure. It is an investigational therapy, meaning it is not yet approved for use in patients, and its safety and efficacy in heart failure are still being evaluated in clinical trials.

Who makes PF-07328948?

PF-07328948 is developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer is running the clinical development program for this investigational heart failure candidate.

What phase is PF-07328948 in?

PF-07328948 is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. The Phase 2 program is currently recruiting participants with heart failure.

What clinical trials is PF-07328948 in?

PF-07328948 is being evaluated in the BRANCH-HF trial, registered as NCT06991257, titled a study to learn about the study medicine called PF-07328948 in adults with heart failure. The Phase 2 trial is recruiting and plans to enroll 620 participants across the United States, Brazil, Bulgaria, Canada, China, Czechia, France, Hungary, Japan, Poland, Puerto Rico, Spain, and the United Kingdom.

Is PF-07328948 the same as Oral [14C]PF-07328948 or Low Dose PF-07328948?

Yes. PF-07328948 is also referred to as Oral [14C]PF-07328948 and Low Dose PF-07328948. These names refer to the same investigational Pfizer compound being studied in heart failure, so searches using any of these terms point to the same drug candidate.

How is the PF-07328948 heart failure trial designed?

The Phase 2 BRANCH-HF trial of PF-07328948 is randomized, double blind, and placebo controlled. It plans to enroll 620 adults aged 18 years and older with heart failure, includes both sexes, does not enroll healthy volunteers, and is currently recruiting across multiple countries.