Αρχειοθήκη ιστολογίου

Αλέξανδρος Γ. Σφακιανάκης
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5
Άγιος Νικόλαος Κρήτη 72100
2841026182
6032607174

Τρίτη 6 Φεβρουαρίου 2018

Efficacy and safety of continuous every 2-week dosing of ixekizumab over 52 weeks in patients with moderate-to-severe plaque psoriasis in a randomized phase 3 trial (IXORA-P)

Abstract

Introduction

Ixekizumab is an interleukin-17A antagonist approved for treatment of moderate-to-severe plaque psoriasis with recommended 160-mg starting dose, then 80 mg every 2 weeks (Q2W) through Week 12, and every 4 weeks (Q4W) thereafter. This study evaluated continuous every 2-week dosing (Q2W) over 52 weeks.

Methods

In this Phase 3, multicentre, double-blinded, parallel-group trial, three ixekizumab dosing regimens were assessed for efficacy and safety at Week 52 in patients with moderate-to-severe plaque psoriasis randomized at a 2:1:1 ratio to continuous Q2W (N=611), continuous Q4W (N=310), or dose adjustment per protocol (Q4W/Q2W, N=306), each with a 160-mg starting dose. Dose adjustment was determined by predefined criteria to which investigators were blinded; 72 (23.5%) patients in the Q4W/Q2W group adjusted dose. Efficacy outcomes were evaluated using logistic regression.

Results

Co-primary endpoints were met at Week 52; Psoriasis Area and Severity Index 75 responses for Q2W and Q4W dose groups were 85.9% and 79.0%, respectively (p=0.006), and static Patient Global Assessment 0/1 responses for Q2W and Q4W dose groups were 78.6% and 70.6%, respectively (p=0.005). Treatment-emergent and serious adverse events were comparable across dose groups.

Conclusions

Ixekizumab Q2W had higher efficacy at Week 52 compared to Q4W, with no increase in safety events.

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