NCT05436275

A Study of CM310 in Patients With Chronic Rhinosinusitis With Nasal Polyposis （CROWNS-2）

A Randomized, Double-blind, Placebo-controlled Phase III Clinical Study to Evaluate the Efficacy and Safety of CM310 in Patients With Chronic Rhinosinusitis With Nasal Polyposis

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 180 (actual)
• Sponsor: Keymed Biosciences Co.Ltd · Industry
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

This is a multi-center, randomized, double blind, placebo-controlled Phase III study to evaluate the efficacy and safety of CM310, and to observe the life quality of subjects, the Pharmacokinetics, Pharmacodynamics and immumogenicity of CM310 in patients with chronic rhinosinusitis with nasal polyposis (CRSwNP).

Detailed description

The study consists of a Screening Period (up to 4 weeks), Treatment Period (24 weeks for double-blind treatment period and 28 weeks for open-label maintenance treatment) and Safety Follow-up Period (8 weeks). 180 patients who meet eligibility criteria will be randomized 1:1 to receive either CM310 300 mg or matched placebo subcutaneously every two weeks (Q2W) for a total of 12 times at the double-blind treatment period and 14 times at the open-label treatment period. All patients will receive MFNS on a daily basis as a background treatment throughout the study. Central reading will be implemented to nasal endoscopic nasal polyp score (NPS) , CT scans to Lund-Mackay score and volume of the involved area of nasosinusitis on 3D-construction images, and nasal polyp biopsy tissue analysis to eosinophil counts \& percentage.

Conditions

• Chronic Rhinosinusitis With Nasal Polyposis

Interventions

Type	Name	Description
BIOLOGICAL	CM310	300 mg every two weeks
BIOLOGICAL	Placebo	once every two weeks

Timeline

• Start date: 2022-08-09
• Primary completion: 2024-06-25
• Completion: 2024-06-25
• First posted: 2022-06-29
• Last updated: 2024-11-08

Locations

1 site across 1 country: China