RECRUITING

Study of Natriuretic Peptide Receptor 1 (NPR1) Antagonist in Adult Patients With Postural Orthostatic Tachycardia Syndrome (POTS)

Conditions

Postural Orthostatic Tachycardia Syndrome (POTS)Orthostatic intolerance

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This study is researching an experimental drug called REGN7544 (called "study drug"). The study is focused on participants with POTS. The aim of the study is to see how safe, tolerable, and effective the study drug is. The study is looking at several other research questions, including: * How the study drug changes heart rate and blood pressure in participants with POTS * 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 study drug less effective or could lead to side effects)

Official Title

A Phase 2 Double-Blind Placebo-Controlled Single-Dose Study of Pharmacodynamics, Pharmacokinetics, Safety, and Tolerability of REGN7544, an NPR1 Antagonist Monoclonal Antibody, in Patients With Postural Orthostatic Tachycardia Syndrome

Quick Facts

Study Start:2024-11-13

Study Completion:2026-04-21

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06593600

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.

Ages Eligible for Study:18 Years to 55 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT

Inclusion Criteria	Exclusion Criteria
1. Is diagnosed with POTS and demonstrates consensus criteria (a), (b), (c) and (d) below during screening: 1. Increase in HR ≥30 beats per minute (BPM) within 10 minutes of changing from supine to a standing position, as described in the protocol 2. Absence of orthostatic hypotension, defined as a decrease in systolic blood pressure (SBP) \>20 mm Hg within 3 minutes of standing 3. Absence of other conditions explaining orthostatic tachycardia in the judgment of the investigator, as defined in the protocol 4. Ongoing episodic symptoms consistent with POTS (for example, lightheadedness, palpitations, tremulousness, generalized weakness, blurred vision, and fatigue) that are worse with standing and are relieved by lying down and which have been present for ≥3 months 2. During screening, a participant must score ≥3 on the Patient Global Impressions of Severity (PGIS) 3. Has a body mass index between 18 and 35 kg/m2, inclusive	1. History of hypertension or a seated SBP during screening that is \>140 mm Hg 2. SBP during active stand (AS) test during screening, either supine or standing, that is \>140 mm Hg systolic on ≥2 measurements 3. Increase in HR \<20 BPM within 10 minutes of changing from supine to a standing position, as defined in protocol 4. Is judged by the investigator to have significant heart failure, cardiovascular disease, liver disease, or renal disease (ie, estimated glomerular filtration rate (eGFR) \<60 ml/min/1.73m2) based on medical history, physical exam, laboratory studies, and/or electrocardiogram (ECG) performed during screening period 5. Is confined to bed more than 50% of waking hours 6. Within 5 days of screening visit has used medications with direct effects on blood volume, BP, or HR (eg, midodrine, droxidopa, octreotide, clonidine, methyldopa, ivabradine, beta-blockers, calcium channel blockers, pyridostigmine, fludrocortisone, desmopressin, stimulants or intravenous (IV) saline)

Inclusion Criteria

Exclusion Criteria

1. Is diagnosed with POTS and demonstrates consensus criteria (a), (b), (c) and (d) below during screening:
1. Increase in HR ≥30 beats per minute (BPM) within 10 minutes of changing from supine to a standing position, as described in the protocol
2. Absence of orthostatic hypotension, defined as a decrease in systolic blood pressure (SBP) \>20 mm Hg within 3 minutes of standing
3. Absence of other conditions explaining orthostatic tachycardia in the judgment of the investigator, as defined in the protocol
4. Ongoing episodic symptoms consistent with POTS (for example, lightheadedness, palpitations, tremulousness, generalized weakness, blurred vision, and fatigue) that are worse with standing and are relieved by lying down and which have been present for ≥3 months
2. During screening, a participant must score ≥3 on the Patient Global Impressions of Severity (PGIS)
3. Has a body mass index between 18 and 35 kg/m2, inclusive

1. History of hypertension or a seated SBP during screening that is \>140 mm Hg
2. SBP during active stand (AS) test during screening, either supine or standing, that is \>140 mm Hg systolic on ≥2 measurements
3. Increase in HR \<20 BPM within 10 minutes of changing from supine to a standing position, as defined in protocol
4. Is judged by the investigator to have significant heart failure, cardiovascular disease, liver disease, or renal disease (ie, estimated glomerular filtration rate (eGFR) \<60 ml/min/1.73m2) based on medical history, physical exam, laboratory studies, and/or electrocardiogram (ECG) performed during screening period
5. Is confined to bed more than 50% of waking hours
6. Within 5 days of screening visit has used medications with direct effects on blood volume, BP, or HR (eg, midodrine, droxidopa, octreotide, clonidine, methyldopa, ivabradine, beta-blockers, calcium channel blockers, pyridostigmine, fludrocortisone, desmopressin, stimulants or intravenous (IV) saline)

Contacts and Locations

Study Contact

Clinical Trials Administrator

CONTACT

844-734-6643

clinicaltrials@regeneron.com

Principal Investigator

Clinical Trial Management

STUDY_DIRECTOR

Regeneron Pharmaceuticals

Study Locations (Sites)

North County Neurology Associates

Carlsbad, California, 92011

United States

Southern California Heart Specialists

Pasadena, California, 91105

United States

Innovative Research of West Florida, Inc.

Clearwater, Florida, 33756

United States

Collaborators and Investigators

Sponsor: Regeneron Pharmaceuticals

Clinical Trial Management, STUDY_DIRECTOR, Regeneron Pharmaceuticals

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 Registration Dates

Study Start Date2024-11-13

Study Completion Date2026-04-21

Study Record Updates

Study Start Date2024-11-13

Study Completion Date2026-04-21

Terms related to this study

Keywords Provided by Researchers

Orthostatic intolerance

Additional Relevant MeSH Terms

Postural Orthostatic Tachycardia Syndrome (POTS)