A Study to Demonstrate How Well REGN1908-1909 Works in Reducing Ocular Allergy Signs and Symptoms in Adult Participants With Cat Allergy
← catalyst calendarSponsored by Regeneron Pharmaceuticals (industry) · REGN — their whole pipeline →.
Phase
Phase 3
Status
Completed
Study type
Interventional
Design
Randomized · Quadruple · Treatment
Enrollment
64actual
Sites
4
Countries
Canada, United States
Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →
Source: ClinicalTrials.gov, retrieved 2026-08-19
Dates
each axis at the precision it was filed, with the registry's own basis| Date | Filed | Basis | What it is |
|---|---|---|---|
| Start | 2024-11-06 | actual | When the study began enrolling |
| Primary completion | 2025-05-10 | actual | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2025-08-02 | actual | The whole study's end, after follow-up |
| First posted | 2024-09-19 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2026-05-08 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Condition
- Allergic Conjunctivitis
Interventions
- Drug: REGN1908
- Drug: REGN1909
- Drug: Placebo
Primary outcome
what the primary-completion date above is the date OFOcular itch score
measured At day 8 post-Conjunctival Allergen Challenge (CAC)
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