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临床试验/NCT07675811
NCT07675811招募中3 期

A Randomized, Double-Masked, Placebo-Controlled, Phase 3 Study to Assess the Efficacy and Safety of Fel d 1 Monoclonal Antibodies in Participants With Allergic Conjunctivitis Due to Cat Allergy

Regeneron Pharmaceuticals1 个研究点 分布在 1 个国家目标入组 570 人开始时间: 2026年7月31日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
3 期
状态
招募中
入组人数
570
试验地点
1
主要终点
Ocular itch score in participants receiving REGN-2Cat as compared to placebo

研究概览

简要总结

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

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
8 Years 至 —(Child, Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Part A: adult participants aged 18 years and older. For part B: pediatric participants ≥8 years and <18 years, and adult participants aged 18 years and older.
  • Positive SPT to cat allergen extract
  • Positive specific Immunoglobulin E (sIgE) tests for cat and Fel d 1
  • Positive CAC criteria

排除标准

  • Significant and/or severe environmental allergies causing symptoms (eg, ocular itching, ocular redness, etc) outside of the challenge setting that are expected to coincide or may interfere with study assessments
  • Presence of any ophthalmic disease/ abnormality/ condition that may interfere with study assessments, affect the study outcomes or participant safety
  • A clinical history of asthma with treatment of asthma requiring systemic (oral or parenteral) corticosteroid treatment as defined in the protocol
  • Note: Other Protocol Defined Inclusion/ Exclusion Criteria Apply

研究组 & 干预措施

REGN-2Cat

Experimental

Part A and B

干预措施: REGN-2Cat (Drug)

Mevonlerbart

Experimental

Part A

干预措施: Mevonlerbart (Drug)

Matching placebo

Placebo Comparator

Part A and B

干预措施: Placebo (Drug)

Freneslerbart

Experimental

Part A and B

干预措施: Freneslerbart (Drug)

结局指标

主要结局

Ocular itch score in participants receiving REGN-2Cat as compared to placebo

时间窗: At day 8, post-Conjunctival Allergen Challenge (CAC)

次要结局

  • 28. Severity of TEAEs(Up to day 113)
  • 30. Concentrations of total freneslerbart in serum(Up to day 113)
  • 31. Concentrations of total mevonlerbart in serum(Up to day 113)
  • 7. Conjunctival redness score in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 3. Achievement of at least a 1-point reduction from baseline in ocular itch score for at least 2 out of 3 post-CAC time points in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 4. Achievement of at least a 1-point reduction from baseline in conjunctival redness score for at least 2 out of 3 post-CAC time points in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 29. Occurrence of Treatment Emergent-Serious Adverse Events (TE-SAEs)(Up to day 113)
  • 20. Ciliary redness score in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 1. Ocular itch score in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 2. Conjunctival redness score in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 5. Percent change from baseline in cat titrated Skin Prick Test (tSPT) in participants receiving REGN-2Cat as compared to placebo(Up to day 85)
  • 6. Ocular itch score in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 8. Achievement of at least a 1-point reduction from baseline in ocular itch score for at least 2 out of 3 post-CAC time points in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 9. Achievement of at least a 1-point reduction from baseline in conjunctival redness score for at least 2 out of 3 post-CAC time points in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 10. Percent change from baseline in cat tSPT in participants receiving freneslerbart as compared to placebo(Up to day 85)
  • 11. Ocular itch score in participants receiving mevonlerbart as compared to placebo(At day 8, post-CAC)
  • 12. Conjunctival redness score in participants receiving mevonlerbart as compared to placebo(At day 8, post-CAC)
  • 13. Achievement of at least a 1-point reduction from baseline in ocular itch score for at least 2 out of 3 post-CAC time points in participants receiving mevonlerbart as compared to placebo(At day 8, post-CAC)
  • 14. Achievement of at least a 1-point reduction from baseline in conjunctival redness score for at least 2 out of 3 post-CAC time points in participants receiving mevonlerbart as compared to placebo(At day 8, post-CAC)
  • 15. Ocular itch score in participants receiving REGN-2Cat as compared to mevonlerbart(At day 8, post-CAC)
  • 16. Ocular itch score in participants receiving REGN-2Cat as compared to freneslerbart(At day 8, post-CAC)
  • 17. Achievements of different degrees of clinical response, as measured by change from baseline in ocular itch score among participants receiving REGN-2Cat, freneslerbart, mevonlerbart or placebo(At day 8, post-CAC)
  • 18. Percent change from baseline in cat tSPT in participants receiving REGN-2Cat as compared to freneslerbart(At day 8)
  • 19. Percent change from baseline in cat tSPT in participants receiving REGN-2Cat as compared to mevonlerbart(At day 8)
  • 21. Episcleral redness score in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 22. Total redness score in participants receiving REGN-2Cat as compared to placebo(Up to day 85, post-CAC)
  • 23. Ciliary redness score in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 24. Episcleral redness score in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 25. Total redness score in participants receiving freneslerbart as compared to placebo(Up to day 85, post-CAC)
  • 26. Percent change from baseline in cat tSPT in participants receiving mevonlerbart as compared to placebo(Up to day 85)
  • 27. Occurrence of Treatment Emergent Adverse Events (TEAEs)(Up to day 113)
  • 32. Occurrence of Anti-Drug Antibodies (ADA) to freneslerbart(Up to day 113)
  • 33. Magnitude of ADA to freneslerbart(Up to day 113)
  • 34. Occurrence of ADA to mevonlerbart(Up to day 113)
  • 35. Magnitude of ADA to mevonlerbart(Up to day 113)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (1)

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