NCT05212051

Evaluate the Preliminary Efficacy, Safety, and PK of Subcutaneous JS005 in Chinese Adult Patients With Active AS

A Randomized, Double-blind, Placebo-controlled, Phase II, Multicenter Study to Evaluate the Preliminary Efficacy, Safety, and Pharmacokinetics of Subcutaneous JS005 in Chinese Adult Patients With Active Ankylosing Spondylitis

• Status: Unknown
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 120 (estimated)
• Sponsor: Shanghai Junshi Bioscience Co., Ltd. · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate preliminary efficacy, safety pharmacokinetic (PK) characteristics, pharmacodynamics (PD) haracteristics and immunogenicity of JS005 at different doses in Chinese patients with active Ankylosing Spondylitis. Treatment difference of JS005 150mg,300mg,450mg vs. placebo in Chinese AS patients in terms of ASAS 20 response rate at Week 16 as well as safety profile will be provided by the study .

Detailed description

This is a randomized, double-blind, placebo-controlled study. Approximately 120 patients who meet the eligibility criteria will be randomized to one of three treatment cohorts (JS005 150 mg, 300 mg, 450mg in a ratio of 1:1:1),then using secondary randomization method, 40 patients in each group will be randomized in a 3: 1 ratio to receive investigational product or placebo. 1. JS005 150mg Cohort: JS005 150 mg or placebo treatment(JS005:Placrbo=3:1) s.c. prefilled syringe (PFS) on Week 0, 1, 2, 3, 4,8 and 12 2. JS005 300mg Cohort: JS005 300 mg or placebo treatment(JS005:Placrbo=3:1) s.c. PFS on Week0, 1, 2 ,3, 4,8,and 12 3 .JS005 450mg Cohort: JS005 450 mg or placebo treatment(JS005:Placrbo=3:1) s.c. PFS on Week0, 1, 2 ,3, 4,8,and 12 Based on the clinical judgment of disease activity by the investigator and the patient, background medications, such as NSAIDs and DMARDs, may have been modified or added to treat signs and symptoms of AS from Week 16 on.

Conditions

• Active Ankylosing Spondylitis

Interventions

Type	Name	Description
BIOLOGICAL	JS005	30 subjectes in JS005 150mg chort, JS005 300mg chort, and JS005 450mg chort receive JS005 150mg, JS005 300mg and JS005 450mg subcutaneous injection seperately at Week 0, 1, 2, and 3, and monthly dose starting at Week 4 (dosing in Week 4, 8, and 12).
BIOLOGICAL	Placebo	10 subjects in JS005 150mg chort, JS005 300mg chort, and JS005 450mgchort receive the placebo subcutaneous injection seperately at Week 0, 1, 2, and 3, and monthly dose starting at Week 4 (dosing in Week 4, 8, and 12).

Timeline

• Start date: 2021-12-10
• Primary completion: 2022-11-02
• Completion: 2023-01-11
• First posted: 2022-01-27
• Last updated: 2022-01-27

Locations

23 sites across 1 country: China