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NCT06602726 · ClinicalTrials.gov registry record · Phase 3

A Study to Demonstrate How Well REGN1908-1909 Works in Reducing Ocular Allergy Signs and Symptoms in Adult Participants With Cat Allergy

A Phase 3 study, sponsored by Regeneron Pharmaceuticals.

Completed
Registry status
Phase 3
Development phase
64
Enrollment target

NCT06602726: Completed Phase 3 study, sponsored by Regeneron Pharmaceuticals.

NCT06602726 is a Phase 3 study that has completed, run by Regeneron Pharmaceuticals. The registered enrollment target is 64 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT06602726, a Phase 3 study, has completed, sponsored by Regeneron Pharmaceuticals.

COMPLETED
Registry status
Phase 3
Development phase
64 participants
Enrollment target

Study Summary

This study is researching 2 experimental drugs, REGN1908 and REGN1909, which are called REGN1908-1909 when mixed together (called "study drug") to reduce eye allergy signs and symptoms from cat allergy. The aim of the study is to see how safe and effective the study drug is at lowering allergic eye signs and symptoms compared with placebo. A placebo looks like a treatment but does not contain any real medicine. The study is looking at several other research questions, including: * 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)

Primary Outcome

Assessed using the Ora Calibra® Conjunctival Allergen Challenge Ocular Itching Scale, a 0-4 point scale where 0= none and 4= incapacitating itch, 0.5 unit increments

Interventions

  • DRUG Placebo
  • DRUG REGN1908
  • DRUG REGN1909

Trial Details

FieldValue
Enrollment Target 64 participants
Start Date 2024-11-06
Est. Completion 2025-08-02
Phase Phase 3
Regeneron Pharmaceuticals

280 total trials

What the finished NCT06602726 record still lists

NCT06602726 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 64 participants, a relatively small participant target, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (92% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT06602726 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT06602726 about?

NCT06602726 is a clinical study titled "A Study to Demonstrate How Well REGN1908-1909 Works in Reducing Ocular Allergy Signs and Symptoms in Adult Participants With Cat Allergy". This study is researching 2 experimental drugs, REGN1908 and REGN1909, which are called REGN1908-1909 when mixed together (called "study drug") to reduce eye allergy signs and symptoms from cat allergy. The aim of the study is to see how safe and effective the study drug is at lowering allergic eye...

What is the current status of trial NCT06602726?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 64 participants. The study started on 2024-11-06. Estimated completion is 2025-08-02.

What interventions are being tested in trial NCT06602726?

The interventions under investigation include: Placebo (DRUG), REGN1908 (DRUG), REGN1909 (DRUG).

Who is sponsoring clinical trial NCT06602726?

This trial is sponsored by Regeneron Pharmaceuticals, which has 280 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT06602726's enrollment target sits among peer trials

64 1799th of 2000 higher than 201 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT06602726, the US trial registry maintained by the National Library of Medicine. NCT06602726 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.