NCT07675811 REGN-1908-1909 Cat allergy (disorder) Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook
Turn a newly registered trial into a decision-ready clinical landscape. This report examines NCT07675811 using PatSnap Clinical Trials MCP for protocol design and endpoint evidence, with Drug & Asset MCP and Company & Deal Intelligence MCP used as the companion asset and sponsor enrichment workflow. Explore PatSnap MCP Servers to reproduce the research sequence inside an AI workflow.
MCP evidence snapshot: 21 July 2026. Trial records, recruitment status and projected dates can change after the snapshot and should be rechecked before operational decisions.
Why NCT07675811 is a hot trial to watch
Cat allergy (disorder) is being segmented by mechanism, treatment setting, geography and endpoint architecture. NCT07675811 is notable because it evaluates REGN-1908-1909 in a Phase 3 design sponsored by Regeneron Pharmaceuticals, Inc.. The main development question is whether the protocol can translate its rationale into a clinically interpretable and operationally credible readout.
Trial landscape snapshot
| Field | Indexed detail |
|---|---|
| Registration | NCT07675811 |
| Official title | A Study to Evaluate the Efficacy and Safety of Fel d 1 Monoclonal Antibodies in Adult and Pediatric Participants With Allergic Conjunctivitis Due to Cat Allergy |
| Phase / status | Phase 3 / Not yet recruiting |
| Intervention | REGN-1908-1909 |
| Sponsor | Regeneron Pharmaceuticals, Inc. |
| Geography | Not reported in the indexed record |
| Enrollment | 570 |
| Primary endpoint | Ocular itch score in participants receiving REGN-2Cat as compared to placebo |
| Endpoint time frame | At day 8, post-Conjunctival Allergen Challenge (CAC) |
| Primary completion / readout proxy | 2027-10-16 |
Protocol design and endpoint interpretation
This study is researching two experimental medicines, freneslerbart and mevonlerbart. Freneslerbart and mevonlerbart can be given alone or together. When given together, the medicine is called "REGN-2Cat". These medicines are also known as the "study drugs". The aim of the study is to see what side effects freneslerbart, mevonlerbart, and REGN-2Cat may have and if they help reduce eye allergy symptoms caused by cat hair/dander compared with a placebo. The study is looking at several other research questions, including: * 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) * How long the study drug effect lasts
Allocation is Randomized, masking is Quadruple, and the intervention model is Parallel Assignment. Planned enrollment of 570 participants across Not reported in the indexed record shapes statistical precision, execution risk and external validity. Interpretation should account for baseline risk, prior therapy, assessment schedule, missing-data handling and clinical relevance—not only statistical significance.
- Ocular itch score in participants receiving REGN-2Cat as compared to placebo (At day 8, post-Conjunctival Allergen Challenge (CAC))
Readout outlook and evidence gap
The current protocol points to 2027-10-16 as the best available readout proxy. Because this is an active or newly posted study, a trial-specific result citation is not included until a normalized clinical-trial-result record becomes available. That gap is itself operationally important: teams should monitor first result indexing, conference abstracts, protocol amendments and changes to the primary-completion date.
Build a living trial monitor: connect to PatSnap MCP Servers and track recruitment, endpoint revisions, projected readouts and new result records without manually reconciling separate databases.
Asset and sponsor context
Trial-sourced asset: REGN-1908-1909. The Drug & Asset MCP enrichment step is designed to add normalized targets, modality and global development status when an exact asset match is available.
Trial-sourced sponsor: Regeneron Pharmaceuticals, Inc.. Company & Deal Intelligence MCP is the companion workflow for resolving organization identity, corporate profile and partnering context.
The sponsor profile matters because scientific rationale alone does not determine development value. Manufacturing readiness, portfolio fit, geographic reach, partnering capacity and the ability to fund confirmatory development can determine whether a positive signal becomes a competitive asset.
White space around this program
- Sharper patient selection: prospective biomarker or phenotype definitions that identify who is most likely to benefit.
- Clinically interpretable endpoints: outcomes connecting activity with function, symptoms, survival or treatment burden.
- Comparator relevance: evidence against the most decision-relevant contemporary standard of care.
- Broader external validity: evidence across additional geographies, demographic groups and real-world settings.
- Operational differentiation: a development path that closes the readout gap without sacrificing safety or durability.
What to monitor next
Monitor recruitment, enrollment changes, protocol amendments, endpoint hierarchy, primary-completion timing, first result indexing, asset ownership and sponsor partnerships. A change in endpoint, population or ownership can alter the probability of success before a headline data release.
Bottom line
NCT07675811 provides a focused lens on Cat allergy (disorder) development. Its value will be determined by whether REGN-1908-1909 can convert the current Phase 3 design into evidence that is clinically meaningful, operationally credible and differentiated from competing programs.
Ready to reproduce this analysis? Explore PatSnap MCP Servers and combine Clinical Trials, Drug & Asset, and Company & Deal Intelligence as reusable building blocks for trial monitoring and SEO-ready clinical reports.
