A Study of REGN7544 for the Treatment in Adult Patients With Sepsis-Induced Hypotension
ESTELLA
A Phase 2 Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamic Effects of REGN7544, an Antagonist Monoclonal Antibody to NPR1, in Patients With Sepsis-Induced Hypotension
2 other identifiers
interventional
76
2 countries
29
Brief Summary
This study is researching an experimental drug called REGN7544 (called "study drug"). The study is focused on adult patients (18 to 85 years) hospitalized due to a serious infection (called "sepsis") and receiving standard-of-care medications for low blood pressure (called "vasopressors") due to sepsis. The aim of the study is to see how safe, tolerable, and effective the study drug is by observing the effects on blood pressure and the total amount of vasopressor dose received during the stay in the hospital. The study is looking at several other research questions, including:
- How the study drug changes the blood pressure and the amount of intravenous (IV) fluids given to participants with low blood pressure due to sepsis
- What side effects may happen from taking the study drug
- How much study drug is in the blood at different times
- Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started May 2025
Shorter than P25 for phase_2
29 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 19, 2024
CompletedFirst Posted
Study publicly available on registry
September 23, 2024
CompletedStudy Start
First participant enrolled
May 5, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2026
CompletedFebruary 13, 2026
February 1, 2026
9 months
September 19, 2024
February 12, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Cumulative vasopressor dose
Through 72 Hours
Secondary Outcomes (10)
Occurrence of Common Terminology Criteria for Adverse Events (CTCAE) grade 3 and higher Treatment-Emergent Adverse Events (TEAEs)
Through 90 Days
Time-weighted average Mean Arterial Pressure (MAP)
Baseline Over 4 Hours
Change in MAP
Baseline, At 4 Hours
Proportion of surviving participants free of vasopressor(s)
At 24, 48 and 72 Hours
Cumulative net fluid balance
Through 72 Hours
- +5 more secondary outcomes
Study Arms (2)
REGN7544
EXPERIMENTALPlacebo (PB)
PLACEBO COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Proven or suspected infection defined as administration or planned administration of antimicrobial therapy within the screening period
- Sepsis-induced hypotension that has not responded to Intravenous (IV) fluids, receiving 1 or 2 vasopressors and maintaining a Mean Arterial Pressure (MAP) of ≥ 65 mm Hg for at least 2 consecutive hours immediately prior to randomization, as defined in the protocol
You may not qualify if:
- Unable to obtain informed consent by participant or Legally Authorized Representative (LAR)
- Clinical status requires vasopressor and/or Blood Pressure (BP) management inconsistent with the study protocol
- Primary cause of hypotension suspected to be due to non-sepsis cause (eg, hemorrhage, burns, or cardiogenic shock), including shock after cardiac arrest
- Ejection fraction \<20% in the most recent known echocardiogram
- Acute coronary syndrome based on clinical symptoms and/or electrocardiogram (ECG) during hospitalization
- History of hospitalization due to heart failure, myocardial infarction, stroke, clinically significant ventricular arrhythmia, transient ischemic attack, or unstable angina within the preceding 3 months
- Any prior diagnosis of severe pulmonary hypertension, as defined in the protocol
- Receiving 3 or more vasopressors or exceeding the maximal combined dose as defined in the protocol, during the screening period or at the time of study drug administration
- Received bone marrow transplant during the preceding 6 months or chemotherapy during the preceding 30 days for lymphoma or leukemia
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (29)
University of Arizona
Tucson, Arizona, 85724, United States
Yale University
New Haven, Connecticut, 06510, United States
Emory University Hospital
Atlanta, Georgia, 30322, United States
Johns Hopkins Hospital
Baltimore, Maryland, 21287, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Harvard Medical School - Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
New York University Langone Health Brooklyn Hospital
Brooklyn, New York, 11220, United States
Bellevue Hospital
New York, New York, 10016, United States
New York University Langone Health Tisch-Kimmel Hospital
New York, New York, 10016, United States
Montefiore Medical Center - Weiler Hospital
The Bronx, New York, 10461, United States
Montefiore Medical Center - Moses Campus
The Bronx, New York, 10467, United States
Atrium Health
Winston-Salem, North Carolina, 27157, United States
Cleveland Clinic Foundation
Cleveland, Ohio, 44195, United States
MUSC SCTR Research Nexus Clinic and Lab
Charleston, South Carolina, 29425, United States
Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
Intermountain Medical Center - Murray (Pulmonary Medicine)
Murray, Utah, 84107, United States
Centre Hospitalier Regional Universaitaire de Tours (CHRU de Tours)
Tours, Centre-Val de Loire, 37000, France
CHU Dupuytren
Limoges, Nouvelle-Aquitaine, 87042, France
Centre Hospitalier Le Mans
Le Mans, Pays de la Loire Region, 72037, France
Centre Hospitalier Departemental (CHD) Vendee
La Roche-sur-Yon, Vendee, 85925, France
Centre Hospitalier Universitaire Angers
Angers, 49933, France
Raymond Poincare University Hospital
Garches, 92380, France
Paris-Saclay University Hospitals
Le Kremlin-Bicêtre, 94270, France
CHU Nantes
Nantes, 44093, France
Centre Hospitalier Universitaire d'Orleans
Orléans, 45064, France
CHU de Reims Hopital Robert Debre
Reims, 51100, France
Hopitaux Universitaires de Strasbourg
Strasbourg, 67091, France
Hopital Nord Franche Comte
Trévenans, 90400, France
Hopital Cochin
Paris, Île-de-France Region, 75014, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Clinical Trial Management
Regeneron Pharmaceuticals
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 19, 2024
First Posted
September 23, 2024
Study Start
May 5, 2025
Primary Completion
February 1, 2026
Study Completion
April 30, 2026
Last Updated
February 13, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- When Regeneron has: * received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency (EMA), Pharmaceuticals and Medical Devices Agency (PMDA), etc.) for the product and indication or has globally discontinued development of the product for all indications on or after April 2020 and has no plans for future development * made the study results publicly available (e.g., scientific publication, scientific conference, clinical trial registry) * the legal authority to share the data, and * ensured the ability to protect participant privacy
- Access Criteria
- Qualified researchers can submit a proposal for access to individual patient or aggregate level data from a Regeneron-sponsored clinical trial through Vivli. Regeneron's Independent Research Request Evaluation Criteria can be found at: https://www.regeneron.com/sites/default/files/Regeneron-External-Data-Sharing-Policy-and-Independent-Research-Request-Evaluation-Criteria.pdf
All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing.