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Phase 1 Safety and Tolerability Study of REGN9533 in Healthy Adults.

Phase 1
Recruiting
Conditions
Healthy Volunteers
Interventions
Drug: Matching Placebo
Registration Number
2024-515285-14-00
Lead Sponsor
Regeneron Pharmaceuticals Inc.
Brief Summary

The aim of this clinical trial is to see how safe and tolerable the clinical trial drug (REGN9533) is in healthy participants. This is the first time that REGN9533 will be given to humans.

After the clinical trial drug has been tested in healthy participants, future studies with REGN9533 will focus on participants with thromboembolic (blocking of blood vessels) diseases which include blood clots.

REGN9533 is a drug that is only used in clinical studies.

The clinical trial is looking at:

* The side effects REGN9533 might cause

* How much REGN9533 is in the blood at different times

* How the body reacts to REGN9533

* If the body makes antibodies to REGN9533 (unwanted immune response, which may cause REGN9533 to not work as well)

* What is the best dose of REGN9533

Detailed Description

Not available

Recruitment & Eligibility

Status
Ongoing, recruiting
Sex
Not specified
Target Recruitment
72
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
REGN9533REGN9533Randomized as described in the protocol Escalating Cohorts including Optional Cohorts
PlaceboMatching PlaceboRandomized as described in the protocol
Primary Outcome Measures
NameTimeMethod
Incidence of Treatment Emergent Adverse Events (TEAEs)Up to 100 days
Severity of TEAEsUp to 100 days
Secondary Outcome Measures
NameTimeMethod
Change in activated Partial Thromboplastin Time (aPTT)Baseline up to 100 days
Change in Prothrombin Time (PT)Baseline up to 100 days
Concentrations of REGN9533Up to 100 days
Incidence of Anti-drug Antibodies (ADAs) to REGN9533Up to 100 days
Titer of ADAs to REGN9533Up to 100 days

Trial Locations

Locations (1)

SGS Belgium

🇧🇪

Edegem, Belgium

SGS Belgium
🇧🇪Edegem, Belgium
Frédéric Vanhoutte
Site contact
+320477790583
Frederic.vanhoutte@sgs.com
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