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Clinical Trials/NCT07526116
NCT07526116
Not yet recruiting
Phase 1

A Randomized, Double-Blind, Placebo-Controlled, Single Ascending Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of Intravenously or Subcutaneously Administered REGN22044 in Healthy Adult Participants

Regeneron Pharmaceuticals0 sites64 target enrollmentStarted: May 7, 2026Last updated:

Overview

Phase
Phase 1
Status
Not yet recruiting
Enrollment
64
Primary Endpoint
Occurrence of Treatment-Emergent Adverse Events (TEAEs)

Overview

Brief Summary

This clinical study will evaluate the study drug, REGN22044, in healthy participants. REGN22044 has not previously been studied in humans.

The purpose of this study is to learn:

  • What side effects may happen when REGN22044 is taken
  • How much of REGN22044 is in the blood at different times
  • Whether the body makes antibodies against REGN22044 (which could make the drug less effective or could lead to side effects)

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Sequential
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to 65 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • 1\. Is judged by the investigator to be in good health as described in the protocol

Exclusion Criteria

  • History of clinically significant cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, psychiatric, or neurological disease, as assessed by the investigator
  • Use of any prescription or non-prescription medications or nutritional supplements from approximately 14 days or 5 half-lives, whichever is longer, prior to administration of study intervention or any planned use through the end of the study, except the permitted medications as listed in the protocol
  • Participants with fever (\>38°C) associated with infection, or chronic, persistent, or recurring infection(s) requiring active treatment with antibiotics, antivirals or antifungals within 8 weeks prior to the screening visit or the randomization visit, or other frequent recurrent infections deemed unacceptable as per investigator judgment
  • Evidence of active or latent tuberculosis (TB) as documented by medical history and examination
  • Note: Other protocol defined Inclusion/ Exclusion criteria apply.

Arms & Interventions

Subcutaneous (SC) Cohorts

Experimental

Intervention: Placebo (Drug)

Subcutaneous (SC) Cohorts

Experimental

Intervention: REGN22044 (Drug)

Intravenous (IV) Cohorts

Experimental

Intervention: REGN22044 (Drug)

Intravenous (IV) Cohorts

Experimental

Intervention: Placebo (Drug)

Outcomes

Primary Outcomes

Occurrence of Treatment-Emergent Adverse Events (TEAEs)

Time Frame: Up to 18 weeks

Severity of TEAEs

Time Frame: Up to 18 weeks

Secondary Outcomes

  • Concentration of REGN22044 in serum(Up to 18 weeks)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

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