Safety of ixekizumab in adult patients with plaque psoriasis, psoriatic arthritis and axial spondyloarthritis: data from 21 clinical trials.
The aim of this integrated analysis is to evaluate the long-term safety and tolerability of ixekizumab in adults with psoriasis, PsA and axial SpA.
Integrated safety data from 21 clinical trials are presented by indication in patients who received at least one dose of ixekizumab. Adverse events (AEs) and treatment-emergent adverse events (TEAEs) adjusted incidence rates (IRs) per 100 patient-years (PY) up to 5 years' exposure are reported.
A total of 8228 patients with an ixekizumab exposure of 20 895.9 PY were included in this analysis. The most common TEAEs were nasopharyngitis, upper respiratory tract infection and injection-site reactions. Across populations, IRs were low for AEs leading to discontinuation (IRs ≤5.1 per 100 PY), serious AEs (IRs ≤6.0 per 100 PY) and death (IRs ≤0.3 per 100 PY). The most reported TEAEs of special interest were infections (IRs ≤35.8 per 100 PY). Patients rarely reported malignancies (IR ≤0.8), IBD including ulcerative colitis and Crohn's disease (IR ≤0.8) and major adverse cardiovascular events (IR ≤0.5). TEAEs were most commonly reported the first 2 years of exposure with ixekizumab and IR decreased over the years (infections, injection-site reactions and depression) or remained constant over the entire treatment period (serious infections, major adverse cardiovascular events, malignancies and IBD).
This long-term analysis on the safety of ixekizumab was consistent with previously published reports and did not show any new safety signals. The safety profile and tolerability reported in this integrated analysis remained consistent with the known safety profile for ixekizumab.
Genovese MC
,Mysler E
,Tomita T
,Papp KA
,Salvarani C
,Schwartzman S
,Gallo G
,Patel H
,Lisse JR
,Kronbergs A
,Leage SL
,Adams DH
,Xu W
,Marzo-Ortega H
,Lebwohl MG
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Long-term safety of Ixekizumab in adults with psoriasis, psoriatic arthritis, or axial spondyloarthritis: a post-hoc analysis of final safety data from 25 randomized clinical trials.
We report long-term, end-of-study program safety outcomes from 25 randomized clinical trials (RCTs) in adult patients with psoriasis (PsO), psoriatic arthritis (PsA), or axial spondyloarthritis (axSpA) [including ankylosing spondylitis (AS) and non-radiographic axial spondyloarthritis (nr-axSpA)] who received ≥ 1 dose of Ixekizumab (IXE) over 5 years (PsO) or up to 3 years (PsA, axSpA).
This integrated safety analysis consists of data from patients who received any dose of IXE, across 25 RCTs (17 PsO, 4 PsA, 4 axSpA). Rates of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs) and selected adverse events (AEs) of interest were analyzed for all pooled studies by years of therapy and overall, through March 2022. Results were reported as exposure-adjusted incidence rates (IRs) per 100 patient-years (PY) overall and at successive year intervals.
Six thousand eight hundred ninety two adult patients with PsO, 1401 with PsA, and 932 with axSpA (including AS and nr-axSpA), with a cumulative IXE exposure of 22,371.1 PY were included. The most commonly reported TEAE across indications was nasopharyngitis (IRs per 100 PY: 8.8 (PsO), 9.0 (PsA), 8.4 (axSpA)). SAEs were reported by 969 patients with PsO (IR 5.4), 134 patients with PsA (IR 6.0), and 101 patients with axSpA (IR 4.8). Forty-five deaths were reported (PsO, n = 36, IR 0.2; PsA, n = 6, IR 0.3; axSpA, n = 3, IR 0.1). TEAEs did not increase during IXE exposure: IRs per 100 PY, PsO: 88.9 to 63.2 (year 0-1 to 4-5), PsA: 87 to 67.3 (year 0-1 to 2-3), axSpA: 82.1 to 55.4 (year 0-1 to > = 2). IRs per 100 PY of discontinuation from IXE due to AE were 2.9 (PsO), 5.1 (PsA), and 3.1 (axSpA). IRs per 100 PY of injection site reactions were 5.9 (PsO), 11.6 (PsA) and 7.4 (axSpA); Candida: 1.9 (PsO), 2.0 (PsA), and 1.2 (axSpA); depression, major adverse cerebro-cardiovascular events and malignancies: ≤ 1.6 across all indications. Adjudicated IRs per 100 PY of inflammatory bowel disease were ≤ 0.8 across indications (0.1 [PsO]; 0.1 [PsA]; 0.8 [axSpA]).
In this integrated safety analysis, consisting of over 22,000 PY of exposure, the long-term safety profile of IXE was found to be consistent with previous, earlier reports, with no new safety signals identified.
NCT registration numbers for RCTs included in this integrated analysis can be found in Additional File 1.
Deodhar A
,Blauvelt A
,Lebwohl M
,Feely M
,Kronbergs A
,Eberhart N
,Zhu D
,Inman E
,Grace E
,Holzkaemper T
,Rahman P
,Marzo-Ortega H
,Papp KA
,Merola JF
,Gottlieb AB
,Schwartzman S
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Safety of Ixekizumab in Patients With Psoriatic Arthritis: Results From a Pooled Analysis of Three Clinical Trials.
To evaluate ixekizumab safety in adults with psoriatic arthritis (PsA).
Safety data from 2 integrated data sets are presented: 1) 24-week, double-blind, placebo-controlled period of SPIRIT-P1 and SPIRIT-P2; and 2) all ixekizumab-treated patients of SPIRIT-P1 and SPIRIT-P2 plus SPIRIT-P3 open-label period. We report adverse event (AE) frequency and exposure-adjusted incidence rates per 100 patient-years at 12-week intervals to week 96.
The placebo-controlled period had 678 patients (safety population): 224 placebo, 229 ixekizumab every 4 weeks, and 225 ixekizumab every 2 weeks. Overall, 1,118 patients received ixekizumab (total exposure 1,373.4 patient-years). In the placebo-controlled period, the frequencies of ixekizumab-treated patients experiencing ≥1 treatment-emergent AE (TEAE) and those experiencing serious AEs were 68.1% (56.7% placebo) and 4.4% (2.7% placebo), respectively. Injection site reactions (ISRs) were very common (21.4% ixekizumab [4.5% placebo]), with ISR discontinuation rates of 1.1% (ixekizumab) and 0.4% (placebo). Through week 96, the incidence rates of ISRs decreased with increasing ixekizumab exposure. The frequencies of AEs of special interest were 32.8% (ixekizumab) and 27.7% (placebo); for serious infections, the frequencies were 1.3% and 0%, respectively; Candida infections, 2.6% and 0.4%; confirmed major adverse cardiac events, 0% and 0%; malignancy, 0.4% and 0%; hypersensitivities, 5.3% and 1.8%; and depression-related, 1.8% and 1.3%. The frequency of Crohn's disease and ulcerative colitis (investigator-reported) was 0% in both groups, and the frequencies of sponsor-determined inflammatory bowel disease were 0.2% in the ixekizumab group and 0% in the placebo group. Overall, no active tuberculosis, invasive Candida infections, anaphylaxis, or suicide/self-injury behaviors were reported.
The PsA ixekizumab safety integrated data set reached 1,373.4 patient-years total exposure. Ixekizumab-treated patients had higher rates of overall TEAEs, serious infections, mucocutaneous Candida, hypersensitivities (non-anaphylactic), and ISRs than placebo-treated patients. No unexpected safety outcomes were reported.
Mease P
,Roussou E
,Burmester GR
,Goupille P
,Gottlieb A
,Moriarty SR
,Benichou O
,Adams DH
,Xu W
,Nash P
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