Study of Efficacy and Safety of Secukinumab in Patients With Ankylosing Spondylitis

Ankylosing Spondyloarthritis Clinical Trial

Official title: Randomized, Double-blind, Placebo-controlled, Phase III Multicenter Study of Subcutaneous Secukinumab to Compare Efficacy at 16 Weeks With Placebo and Assess Safety and Tolerability up to 52 Weeks in Subjects With Active Ankylosing Spondylitis

Status Completed

Clinical Trial Summary

The purpose of this trial is to demonstrate the clinical efficacy at week 16; and to demonstrate safety and tolerability of secukinumab compared to placebo in patients with ankylosing spondylitis at week 16 and long term safety up to Week 52.

Clinical Trial Description

This multicenter study used a randomized, double-blind, placebo-controlled, parallel-group design. A screening period running up to 10 weeks before randomization was used to assess eligibility, followed by 52 weeks of treatment.

At baseline, subjects were randomized to one of the two treatment groups:

• Group 1: 300 subjects, secukinumab 150 mg (1 mL, 150 mg/mL) s.c. pre-filled syringes (PFS) at BSL, Weeks 1, 2, and 3, followed by administration every four weeks starting at Week 4

• Group 2: 150 subjects, placebo (1 mL) s.c. PFS at BSL, Weeks 1, 2, 3, 4, 8, and 12, followed by secukinumab 150 mg (1 mL, 150 mg/mL) administration every four weeks starting at Week 16

The subjects were stratified at randomization according to the region (China and non-China). Approximately 70% of randomized subjects were from China (327 Chinese subjects) in order to evaluate the efficacy and safety in this subject population. No more than 30% TNFα inhibitor inadequate responders (TNF-IR) subjects were to be enrolled in the study.

Starting at Week 16, all subjects switched to open-label secukinumab 150 mg, including all placebo subjects; however, all subjects and investigators/site staff remained blinded to the original randomized treatment group assignment (150 mg vs placebo). Study treatment continued up to Week 48.

An end of treatment visit was done 4 weeks after last study treatment administration and a post treatment follow-up visit was done 12 weeks after last study treatment administration for all subjects (regardless of whether they completed the entire study as planned or discontinued prematurely).

Subjects were instructed in detail how to self-administer the s.c. injection using PFS. Each injection was administered into an appropriate injection site of the body (thighs, arms, or abdomen). All injections were performed at the study site. Site personnel administered the injections to subjects who were not able to, or felt insecure to self-administer. Rescue medication was not allowed until Week 20. However, subjects who were deemed by the investigator not to be benefiting from the study treatment based on safety and efficacy assessments or for any reason of their own accord were free to discontinue participation in the study at any time. ;

Related Conditions & MeSH terms

• Ankylosing Spondyloarthritis
• Spondylarthritis
• Spondylitis
• Spondylitis, Ankylosing

• NCT number: NCT02896127
• Study type: Interventional
• Source: Novartis
• Status: Completed
• Phase: Phase 3
• Start date: October 18, 2016
• Completion date: March 19, 2019