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Low Dose PF-07328948

Phase 2

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

Target and mechanism

ModalitySmall molecule

Also known as 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

Clinical trial landscape

Low Dose 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 Low Dose PF-07328948

What is Low Dose PF-07328948 used for?

Low Dose PF-07328948 is an investigational small molecule being developed by Pfizer for cardiovascular conditions, specifically heart failure. It is currently in Phase 2 clinical trials for heart failure, with additional Phase 1 studies in healthy adults and in people with hepatic or renal impairment.

Who makes Low Dose PF-07328948?

Low Dose PF-07328948 is being developed by Pfizer, Inc., which trades under the ticker symbol PFE on the New York Stock Exchange. The company is conducting multiple clinical trials to evaluate the drug in various populations, including healthy adults and patients with heart failure.

What phase is Low Dose PF-07328948 in?

Low Dose PF-07328948 is in Phase 2 clinical development for heart failure, as shown by the recruiting BRANCH-HF trial. It is also being studied in Phase 1 trials for hepatic and renal impairment. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is Low Dose PF-07328948 in?

Low Dose PF-07328948 is being studied in several trials. NCT06991257 is a Phase 2 study in adults with heart failure. NCT06837259 is a completed Phase 1 drug interaction study in healthy adults. NCT07269301 and NCT07315360 are Phase 1 studies in hepatic and renal impairment, respectively.

Is Low Dose PF-07328948 the same as PF-07328948?

Yes, Low Dose PF-07328948 is the same as PF-07328948. The drug is referred to by both names in clinical trial records, with PF-07328948 being the primary identifier used in study titles and descriptions.

Is Low Dose PF-07328948 FDA approved?

Low Dose PF-07328948 is not FDA approved. It is an investigational drug currently in Phase 2 clinical trials for heart failure and Phase 1 trials for other conditions. Approval status has not been granted, and the drug remains in clinical development.