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A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of REGN9035 in Healthy Adult Volunteers and Mildly Hypertensive Participants

Phase 1
Completed
Conditions
Healthy Volunteers
Interventions
Registration Number
NCT05291546
Lead Sponsor
Regeneron Pharmaceuticals
Brief Summary

The primary objective of the study is to:

• Evaluate the safety and tolerability of REGN5381 and REGN9035 administered alone or sequentially.

The secondary objectives of the study are to:

* Evaluate the ability of single intravenous (IV) doses of REGN9035 (compared to placebo) to reverse the acute hemodynamic effects of REGN5381

* Evaluate the hemodynamic effects of single IV doses of REGN5381

* Evaluate the persistence of the hemodynamic effects of single IV doses of REGN5381 and the reversal of REGN5381 effects by REGN9035 (compared to placebo)

* Evaluate the pharmacokinetics of single IV doses of REGN5381 and REGN9035 administered alone or sequentially

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
93
Inclusion Criteria
  1. Body mass index (BMI) between 18 and 32 kg/m2, inclusive, at the screening visit.
  2. Normal or mildly elevated blood pressure as defined in the protocol.

Key

Exclusion Criteria
  1. History of unexplained syncope or autonomic dysfunction.
  2. History of clinically significant cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, psychiatric, or neurological disease.
  3. Protocol-defined risk factors for cardiovascular disease.

Note: Other protocol defined inclusion / exclusion criteria apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Part BREGN5381Selected doses of REGN5381 or matching placebo given by IV administration followed by selected doses of REGN9035 and/or matching placebo via IV infusion
Part AREGN9035Single ascending dose (SAD) of REGN9035 or matching placebo given by intravenous (IV) administration.
Part BREGN9035Selected doses of REGN5381 or matching placebo given by IV administration followed by selected doses of REGN9035 and/or matching placebo via IV infusion
Part APlaceboSingle ascending dose (SAD) of REGN9035 or matching placebo given by intravenous (IV) administration.
Part BPlaceboSelected doses of REGN5381 or matching placebo given by IV administration followed by selected doses of REGN9035 and/or matching placebo via IV infusion
Primary Outcome Measures
NameTimeMethod
Incidence and Severity of Treatment Emergent Adverse Events (TEAEs)Up to Day 162
Secondary Outcome Measures
NameTimeMethod
Absolute change from baseline (pre-REGN5381 administration) in the mean SV obtained after study drug administrationUp to Day 3
Percent change in the mean DBP obtained after study drug administrationUp to Day 3
Mean diastolic blood pressure (DBP) obtained after study drug administrationUp to Day 3
Mean stroke volume (SV) obtained after study drug administrationUp to Day 3
Absolute change in the mean MAP obtained after study drug administrationUp to Day 3
Maximum change in the mean PP obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean SV obtained after study drug administrationUp to Day 3
Mean systolic blood pressure (SBP) obtained after study drug administrationUp to Day 3

Up to 24 hours after study drug administration.

Mean pulse rate (PR) obtained after study drug administrationUp to Day 3
Maximum change in the mean SBP obtained after study drug administrationUp to Day 3
Maximum change in the mean MAP obtained after study drug administrationUp to Day 3
Absolute change in the mean PP obtained after study drug administrationUp to Day 3
Absolute change in the mean PR obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REGN administration) in the mean DBP obtained after study drug administrationUp to Day 3
Maximum change from baseline (pre-REGN administration) in the mean SV obtained after study drug administrationUp to Day 3
Mean arterial pressure (MAP) obtained after study drug administrationUp to Day 3
Mean pulse pressure (PP) obtained after study drug administrationUp to Day 3
Absolute change in the mean DBP obtained after study drug administrationUp to Day 3
Absolute change in the mean SBP obtained after study drug administrationUp to Day 3
Absolute change in the mean SV obtained after study drug administrationUp to Day 3
Maximum change in the mean DBP obtained after study drug administrationUp to Day 3
Percent change from baseline (post-REN5381 administration) in the mean MAP obtained after study drug administrationUp to Day 3
Percent change from baseline (pre-REN5381 administration) in the mean PP obtained after study drug administrationUp to Day 3
Concentrations of total REGN9035Up to Day 162
Percent change from baseline (post-REN5381 administration) in the mean PR obtained after study drug administrationUp to Day 3
Maximum change in the mean PR obtained after study drug administrationUp to Day 3
Maximum change in the mean SV obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REGN administration) in the mean SBP obtained after study drug administrationUp to Day 3
Maximum change from baseline (pre-REGN administration) in the mean DBP obtained after study drug administrationUp to Day 3
Percent change from baseline (pre-REN5381 administration) in the mean MAP obtained after study drug administrationUp to Day 3
Percent change in the mean MAP obtained after study drug administrationUp to Day 3
Percent change in the mean PR obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean SBP obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean MAP obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean PP obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REN5381 administration) in the mean PR obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REGN5381 administration) in the mean SV obtained after study drug administrationUp to Day 3
Percent change from baseline (post-REN5381 administration) in the mean SBP obtained after study drug administrationUp to Day 3
Absolute change from baseline (pre-REGN5381 administration) in the mean PR obtained after study drug administrationUp to Day 3
Maximum change from baseline (pre-REGN administration) in the mean SBP obtained after study drug administrationUp to Day 3
Maximum change from baseline (pre-REGN administration) in the mean MAP obtained after study drug administrationUp to Day 3
Percent change in the mean SV obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REGN administration) in the mean PP obtained after study drug administrationUp to Day 3
Percent change from baseline (post-REN5381 administration) in the mean PP obtained after study drug administrationUp to Day 3
Percent change in the mean SBP obtained after study drug administrationUp to Day 3
Percent change in the mean PP obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean DBP obtained after study drug administrationUp to Day 3
Absolute change from baseline (post-REGN5381 administration) in the mean PR obtained after study drug administrationUp to Day 3
Maximum change from baseline (post-REGN administration) in the mean MAP obtained after study drug administrationUp to Day 3
Percent change from baseline (post-REN5381 administration) in the mean DBP obtained after study drug administrationUp to Day 3
Percent change from baseline (post-REN5381 administration) in the mean SV obtained after study drug administrationUp to Day 3
Absolute change from baseline (pre-REGN5381 administration) in the mean SBP obtained after study drug administrationUp to Day 3
Absolute change from baseline (pre-REGN5381 administration) in the mean PP obtained after study drug administrationUp to Day 3
Maximum change from baseline (pre-REGN administration) in the mean PR obtained after study drug administrationUp to Day 3
Percent change from baseline (pre-REN5381 administration) in the mean DBP obtained after study drug administrationUp to Day 3
Time to return to within 10% of baseline (pre-REGN5381) SBPUp to approximately Day 162
DBPThrough Day 36
MAPThrough Day 36
Absolute change from baseline (pre-REGN5381 administration) in the mean DBP obtained after study drug administrationUp to Day 3
Absolute change from baseline (pre-REGN5381 administration) in the mean MAP obtained after study drug administrationUp to Day 3
Percent change from baseline (pre-REN5381 administration) in the mean SBP obtained after study drug administrationUp to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) DBP obtained after study drug administration.Baseline to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) MAP obtained after study drug administration.Baseline to Day 3
PRThrough Day 36
Absolute change from baseline in DBPThrough Day 36
Absolute change from baseline in PPThrough Day 36
Percent change from baseline in MAPThrough Day 36
Percent change from baseline in PPThrough Day 36
Percent change from baseline in PRThrough Day 36
Percent change from baseline (pre-REN5381 administration) in the mean PR obtained after study drug administrationUp to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) PR obtained after study drug administration.Baseline to Day 3
Maximum change from baseline (pre-REGN administration) in the mean PP obtained after study drug administrationUp to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) SBP obtained after study drug administration.Baseline to Day 3
Time to return to within 10% of baseline (pre-REGN5381) DBPUp to approximately Day 162
Time to return to within 10% of baseline (pre-REGN5381) PRUp to approximately Day 162
Absolute change from baseline in SBPThrough Day 36
Percent change from baseline (pre-REN5381 administration) in the mean SV obtained after study drug administrationUp to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) PP obtained after study drug administration.Baseline to Day 3
Percentage of participants who return to within 10% of baseline (pre-REGN5381 administration) SV obtained after study drug administration.Baseline to Day 3
Time to return to within 10% of baseline (pre-REGN5381) MAPUp to approximately Day 162
Time to return to within 10% of baseline (pre-REGN5381) PPUp to approximately Day 162
Time to return to within 10% of baseline (pre-REGN5381) SVUp to approximately Day 162
SBPThrough Day 36
Absolute change from baseline in MAPThrough Day 36
Absolute change from baseline in PRThrough Day 36
PPThrough Day 36
Percent change from baseline in SBPThrough Day 36
Percent change from baseline in DBPThrough Day 36
Concentrations of total REGN5381 over timeUp to Day 162
Concentrations of total REGN9035 and/or total REGN5381Up to Day 162

Trial Locations

Locations (2)

Universitair Ziekenhuis Leuven Gasthuisberg Campus

🇧🇪

Leuven, Belgium

Charite Research Organisation GmbH

🇩🇪

Berlin, Germany

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