TerminatedPhase 2

A Study of Ponsegromab in People With Heart Failure

Stopped: Following a prespecified interim analysis, and in consultation with the independent Data Monitoring Committee, the Sponsor terminated the study

United States, Australia, Canada455 participantsStarted 2022-09-26

Plain-language summary

The primary purpose of this clinical trial is to compare the effects of study medicine (Ponsegromab/PF-06946860) with a placebo (an injection that looks like the study medicine but does not contain the active medicine) to find out if the study medicine is better than the placebo (an injection that looks like the study medicine but does not contain the active medicine) for treatment of symptoms related to heart failure. Participants will not know which treatment group they are assigned to. Most participants in this study will receive the study medicine or placebo by shots under the skin every four weeks. People may be able to participate in this study if they have heart failure. Participants will take part in this study for about 9 months. During this time participants will visit the study clinic once a month. A separate PK cohort within this clinical trial will receive open-label study medicine (Ponsegromab/PF-06946860) only. Participants in this open-label, PK cohort will not receive placebo. These participants will receive the study medicine by shots under the skin every four weeks. People may be able to participate in this study cohort if they also have heart failure. Participants will take part in the open-label, PK cohort for about 7 months.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Clinical evidence of HF with each of the following criteria:
. LVEF \<50% on most recent measurement, within 12 months of screening. Note: An assessment of LVEF in the prior 12 months is not required in situations where LVEF has been persistently \<50% on prior assessments obtained at least 3 months apart (including the most recent measurement).
. NYHA class II-IV at screening.
. NT-proBNP ≥400 pg/mL at screening (Note: Does not apply to open-label, PK Cohort \[Cohort B\]).
. Non-edematous unintentional weight loss ≥5% in the last 6 months or current BMI \<20 kg/m2, associated with subjective fatigue or anorexia; or
. Fatigue at least 3 times per week AND at least moderately bothersome fatigue in the past 2 weeks based on the KCCQ-23 administered at screening; or

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change From Baseline in Kansas City Cardiomyopathy Questionnaire (KCCQ)-23 - Clinical Summary Score (CSS) at Week 22: Cohort A, Ponsegromab 300 mg Versus Placebo

Timeframe: Baseline [the last measurement on study Day 1], Week 22

Trial details

NCT IDNCT05492500

SponsorPfizer

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2025-03-05

Results submitted2026-02-25

View on ClinicalTrials.gov More Heart Failure trials