A Study of Bimagrumab in Participants With HFpEF (ACTIVATE-HFpEF)

October 29, 2026 updated by: Eli Lilly and Company

A Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study Comparing the Efficacy and Safety of Bimagrumab Versus Placebo in Patients With Heart Failure With Preserved Ejection Fraction (ACTIVATE-HFpEF)

This study will look at how bimagrumab affects adults who have a type of heart failure called HFpEF (heart failure with preserved ejection fraction), where the heart pumps normally but does not fill with blood as well as it should. Participation in the study will last about 76 weeks.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
540

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
  • Phone Number: 317-615-4559
  • Email: LillyTrials@Lilly.com

Study Locations

  • Hungary
      • Budapest, Hungary, H-1122
        • Semmelweis Egyetem - Varosmajori Sziv es Ergyogyaszati Klinika
        • Principal Investigator:
          • Bela Merkely
  • Italy
      • Caserta, Italy, 81100
        • Azienda Ospedaliera di Rilievo Nazionale e di Alta Specializzazione Sant' Anna e San Sebastiano di Caserta
        • Contact:
          • Phone Number: 0823 23207475
        • Principal Investigator:
          • Paolo Calabro
      • Torino, Italy, 10128
        • A.O. Ordine Mauriziano di Torino
        • Principal Investigator:
          • Giuseppe Musumeci
  • Poland
      • Krakow, Poland, 31-202
        • Krakowski Szpital Specjalistyczny im. sw. Jana Pawla II
        • Principal Investigator:
          • Pawel Rubis
      • Wroclaw, Poland, 50-981
        • 4 Wojskowy Szpital Kliniczny z Poliklinika Samodzielny Publiczny ZOZ we Wroclawiu
        • Principal Investigator:
          • Bartosz Krakowiak
      • Wroclaw, Poland, 50-556
        • Uniwersytecki Szpital Kliniczny im. Jana Mikulicza-Radeckiego we Wroclawiu
        • Principal Investigator:
          • Joanna Szachniewicz
  • United States
    • California
      • Van Nuys, California, United States, 91405
        • InvivoCure LLC
        • Principal Investigator:
          • Rodney Samaan
    • Florida
      • North Miami Beach, Florida, United States, 33169
        • Amavita Research Services, LLC
        • Principal Investigator:
          • Pedro Martinez-Clark
    • Texas
      • Dallas, Texas, United States, 75235
        • Dharma PA d/b/a Southwest Family Medicine Associates
        • Principal Investigator:
          • Chrisette Dharma

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Have New York Heart Association Class II to III heart failure

  • Have left ventricular ejection fraction (LVEF) ≥ 50%

  • KCCQ-CSS ≤ 80

  • 6MWD must be all of the following:

    • ≥100 and ≤ 450 meters (m) based on average of 2 tests conducted at screening visit, AND
    • ≥ 100 and ≤ 450 m on 1 test at randomization visit, AND
    • < 20% change from average qualifying 6MWD obtained at screening

  • Have documented evidence of at least one of the following:

    • Heart failure event
    • Elevated NT-proBNP (N-terminal pro B-type natriuretic peptide)
    • Left atrium enlargement
    • Elevated filling pressure

  • Stable dose of heart failure medications

  • Body mass index (BMI) ≥ 23 kilograms per meter squared (kg/m²)

Exclusion Criteria:

  • Heart failure hospitalization < 4 weeks before screening
  • Myocardial infarction, coronary artery bypass graft surgery, or other major cardiovascular surgery/intervention, stroke or transient ischemic attack in past 12 weeks prior to screening, or unstable angina pectoris in past 4 weeks prior to screening or during screening
  • Type 1 diabetes
  • Hemoglobin A1c (HbA1c) ≥ 9.5%

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Bimagrumab Dose 1

Participants will receive bimagrumab subcutaneously (SC)
Drug: Bimagrumab

Administered SC

Other Names:
  • LY3985863
Experimental: Bimagrumab Dose 2

Participants will receive bimagrumab SC
Drug: Bimagrumab

Administered SC

Other Names:
  • LY3985863
Placebo Comparator: Placebo 1

Participants will receive placebo SC
Drug: Placebo

Administered SC
Placebo Comparator: Placebo 2

Participants will receive placebo SC
Drug: Placebo

Administered SC

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Change from Baseline in the Kansas City Cardiomyopathy Questionnaire-Clinical Summary Score (KCCQ-CSS)
Time Frame: Baseline, Week 52
Baseline, Week 52

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Change from Baseline in the 6-Minute Walk Test Distance (6MWD)
Time Frame: Baseline, Week 52
Baseline, Week 52
Change from baseline in High-Sensitivity C-Reactive Protein (hs-CRP)
Time Frame: Baseline, Week 52
Baseline, Week 52
Percentage of Participants who Achieve Responder Status for KCCQ-CSS
Time Frame: Week 52
Week 52
Percentage of Participants who Achieve Responder Status for 6-Minute Walk Test Distance
Time Frame: Week 52
Week 52
Change from Baseline in Early Transmitral Inflow Velocity / Early Diastolic Mitral Annular Velocity (E/e')
Time Frame: Baseline, Week 52
Baseline, Week 52
Change from Baseline in Total Body Lean Mass
Time Frame: Baseline, Week 52
Baseline, Week 52

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eli Lilly and Company

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 29, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 29, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 6, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 6, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 29, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 27879
  • J4Z-MC-GIDK (Other Identifier: Eli Lilly and Company)
  • 2026-527983-34-00 (Ctis)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.

IPD Sharing Time Frame

Data are available 6 months after the primary publication or approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting.

IPD Sharing Access Criteria

A research proposal should be approved by an independent review panel and researchers should sign a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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