This is a randomized, multicenter, double-blind, Phase 3 study with 2 parallel groups. The purpose of this study is to evaluate the efficacy, safety, and tolerability of 2 different dosing regimens of itepekimab monotherapy in Japanese participants aged 18 years or older with chronic rhinosinusitis with nasal polyp(s) (CRSwNP) who are not adequately controlled despite previous surgery and/or treatment with systemic corticosteroid(s) (SCS).
The total study duration par participant is approximately 76 week, including:
* A screening period for up to 4 weeks. * A randomized study intervention period for up to 52 weeks * A post-intervention safety follow-up for up to 20 weeks * The number of visits will be 9 site visits and 20 phone/home visits
Participants must be 18 years of age or older.
Participants with a history of CRSwNP for at least 1 year.
Prior sinonasal surgery for NP.
Worsening symptoms of CRS requiring treatment with SCS within the prior 1 year.
Participants with a history of clinically significant renal, hepatic, metabolic, neurologic, hematologic, ophthalmologic, respiratory (excluding those with asthma and AERD which may be included in the study), gastrointestinal, cardiovascular, cerebrovascular, or other significant medical illness or disorder, which, in the judgment of the Investigator, could interfere with the study or require treatment that might interfere with the study.
Participants who are currently smoking tobacco and/or vaping, or participants in whom smoking/vaping cessation has occurred <6 months. Nicotine replacement therapy and/or noninhaled tobacco product use are not considered current smoking of tobacco.
Participants with a history of a severe systemic hypersensitivity reaction to a mAb.
Participants with conditions/concomitant diseases making them non-evaluable or for the primary efficacy endpoint.
Sanofi
Lead sponsor
Regeneron Pharmaceuticals
Collaborator