A Study to Evaluate Efficacy and Safety of Upadacitinib in Adults With Axial Spondyloarthritis — SELECT-AXIS 2  

Spondyloarthritis Clinical Trial

Official title: A Phase 3 Randomized, Placebo-Controlled, Double-Blind Program to Evaluate Efficacy and Safety of Upadacitinib in Adult Subjects With Axial Spondyloarthritis Followed by a Remission-Withdrawal Period

Status Active, not recruiting

Clinical Trial Summary

This protocol includes 2 standalone studies with randomization, data collection, analysis and reporting conducted independently.

The main objectives of this protocol are:

• To evaluate the efficacy of upadacitinib compared with placebo on reduction of signs and symptoms in adults with active axial spondyloarthritis (axSpA) including biologic disease-modifying antirheumatic drug inadequate responders (bDMARD-IR) ankylosing spondylitis (AS) (Study 1) and non-radiographic axial spondyloarthritis (nr-axSpA) (Study 2).

• To assess the safety and tolerability of upadacitinib in adults with active axSpA including bDMARD-IR AS (Study 1) and nr-axSpA (Study 2).

• To evaluate the safety and tolerability of upadacitinib in extended treatment in adult participants with active axSpA including bDMARD-IR AS who have completed the Double-Blind Period (Study 1) and nr-axSpA who have completed the Double-Blind Period (Study 2).

• To evaluate the maintenance of disease control after withdrawal of upadacitinib.

Clinical Trial Description

Study 1 (bDMARD-IR AS) is comprised of a 14-week randomized, double-blind, parallel-group, placebo-controlled period (the Double-Blind Period); a 90-week open-label, long-term extension period (the Open-Label Extension Period); and a 30-day Follow-Up Visit (F/U Visit).

Study 2 (nr-axSpA) is comprised of a 52-week randomized, double-blind, parallel-group, placebo-controlled period (the Double-Blind Period); a 52-week open-label, long-term extension period (the Open-Label Extension Period); and a 30-day F/U Visit.

In the Double-Blind Period for both studies, participants are randomized in a 1:1 ratio to receive either upadacitinib or placebo once daily (QD).

Participants in the placebo group switch to upadacitinib 15 mg QD at Week 14 in the Open-Label Extension Period for Study 1 (bDMARD-IR AS) and Week 52 in the Open-Label Extension Period for Study 2 (nr-axSpA).

Participants in remission at Week 104 have the option to enroll in a remission-withdrawal period.

Study M19-944 protocol uses a common screening platform for determining eligibility into Study 1 and Study 2. Each study has its own objectives, hypothesis testing, randomization, data collection, and adequate power for primary and secondary endpoints. Analysis and reporting are conducted separately and independently for each study. ;

Related Conditions & MeSH terms

• Axial Spondyloarthritis
• Spondylarthritis
• Spondylitis
• Spondyloarthritis

• NCT number: NCT04169373
• Study type: Interventional
• Source: AbbVie
• Status: Active, not recruiting
• Phase: Phase 3
• Start date: November 26, 2019
• Completion date: May 31, 2025