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The interleukin (IL)-23 inhibitor risankizumab was decisively more effective than the IL-17A inhibitor secukinumab at 52 weeks in a multinational randomized head-to-head trial in patients with moderate to severe psoriasis.

Risankizumab was better tolerated, with a significantly lower rate of treatment-emergent adverse events and a lower study dropout rate, Richard B. Warren, MBChB, PhD, reported at the virtual annual meeting of the American Academy of Dermatology.

In addition, the dosing schedule for risankizumab (Skyrizi) is more convenient, with maintenance dosing by subcutaneous injection once every 12 weeks, compared with monthly for secukinumab (Cosentyx), a biologic for psoriasis considered state-of-the-art not long ago, noted Dr. Warren, a dermatologist at the Salford (England) Royal NHS Foundation Trust and the Manchester NIHR Biomedical Research Center as well as professor of dermatology at the University of Manchester.

The phase 3 IMMERGE trial included 327 patients with moderate to severe psoriasis randomized to risankizumab or secukinumab for 52 weeks at their approved dosing. The trial, conducted mainly in the United States, Canada, and Europe, was open label, but evaluator blinded.



The coprimary endpoints were a 90% improvement from baseline in Psoriasis Area and Severity Index scores (PASI 90) at weeks 16 and 52. The week 52 PASI 90 response rates were 87% in the risankizumab group and 57% with secukinumab, for a highly significant absolute 30% difference. The week 16 result was a prespecified noninferiority analysis, and here again risankizumab met its mark, with a PASI 90 rate of 74%, statistically noninferior to the 66% rate with secukinumab, even though at that point patients had received only two doses of risankizumab, versus seven doses of secukinumab.

The PASI 100 response rate at 52 weeks, a key secondary endpoint, was 66% with risankizumab and 40% with secukinumab. Another secondary endpoint was achievement of a static Physician Global Assessment score of 0 or 1 – clear or almost clear – at week 52; the rates were 88% with risankizumab, 58% with secukinumab.

Ninety-two percent of participants randomized to risankizumab completed the full 52-week study, as did 82.8% of the secukinumab group. The nearly 10% absolute lower completion rate in the secukinumab group was driven by a higher rate of lack of efficacy – 4.3%, compared to 0.6% for risankizumab – and a greater incidence of adverse events. Indeed, treatment-emergent adverse events were fourfold more common in the secukinumab arm, with a rate of 4.9%, versus 1.2% with risankizumab, according to Dr. Warren.

He reported receiving research grants from and serving as a consultant to the study sponsor, AbbVie, as well as roughly a dozen other pharmaceutical companies.

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The interleukin (IL)-23 inhibitor risankizumab was decisively more effective than the IL-17A inhibitor secukinumab at 52 weeks in a multinational randomized head-to-head trial in patients with moderate to severe psoriasis.

Risankizumab was better tolerated, with a significantly lower rate of treatment-emergent adverse events and a lower study dropout rate, Richard B. Warren, MBChB, PhD, reported at the virtual annual meeting of the American Academy of Dermatology.

In addition, the dosing schedule for risankizumab (Skyrizi) is more convenient, with maintenance dosing by subcutaneous injection once every 12 weeks, compared with monthly for secukinumab (Cosentyx), a biologic for psoriasis considered state-of-the-art not long ago, noted Dr. Warren, a dermatologist at the Salford (England) Royal NHS Foundation Trust and the Manchester NIHR Biomedical Research Center as well as professor of dermatology at the University of Manchester.

The phase 3 IMMERGE trial included 327 patients with moderate to severe psoriasis randomized to risankizumab or secukinumab for 52 weeks at their approved dosing. The trial, conducted mainly in the United States, Canada, and Europe, was open label, but evaluator blinded.



The coprimary endpoints were a 90% improvement from baseline in Psoriasis Area and Severity Index scores (PASI 90) at weeks 16 and 52. The week 52 PASI 90 response rates were 87% in the risankizumab group and 57% with secukinumab, for a highly significant absolute 30% difference. The week 16 result was a prespecified noninferiority analysis, and here again risankizumab met its mark, with a PASI 90 rate of 74%, statistically noninferior to the 66% rate with secukinumab, even though at that point patients had received only two doses of risankizumab, versus seven doses of secukinumab.

The PASI 100 response rate at 52 weeks, a key secondary endpoint, was 66% with risankizumab and 40% with secukinumab. Another secondary endpoint was achievement of a static Physician Global Assessment score of 0 or 1 – clear or almost clear – at week 52; the rates were 88% with risankizumab, 58% with secukinumab.

Ninety-two percent of participants randomized to risankizumab completed the full 52-week study, as did 82.8% of the secukinumab group. The nearly 10% absolute lower completion rate in the secukinumab group was driven by a higher rate of lack of efficacy – 4.3%, compared to 0.6% for risankizumab – and a greater incidence of adverse events. Indeed, treatment-emergent adverse events were fourfold more common in the secukinumab arm, with a rate of 4.9%, versus 1.2% with risankizumab, according to Dr. Warren.

He reported receiving research grants from and serving as a consultant to the study sponsor, AbbVie, as well as roughly a dozen other pharmaceutical companies.

The interleukin (IL)-23 inhibitor risankizumab was decisively more effective than the IL-17A inhibitor secukinumab at 52 weeks in a multinational randomized head-to-head trial in patients with moderate to severe psoriasis.

Risankizumab was better tolerated, with a significantly lower rate of treatment-emergent adverse events and a lower study dropout rate, Richard B. Warren, MBChB, PhD, reported at the virtual annual meeting of the American Academy of Dermatology.

In addition, the dosing schedule for risankizumab (Skyrizi) is more convenient, with maintenance dosing by subcutaneous injection once every 12 weeks, compared with monthly for secukinumab (Cosentyx), a biologic for psoriasis considered state-of-the-art not long ago, noted Dr. Warren, a dermatologist at the Salford (England) Royal NHS Foundation Trust and the Manchester NIHR Biomedical Research Center as well as professor of dermatology at the University of Manchester.

The phase 3 IMMERGE trial included 327 patients with moderate to severe psoriasis randomized to risankizumab or secukinumab for 52 weeks at their approved dosing. The trial, conducted mainly in the United States, Canada, and Europe, was open label, but evaluator blinded.



The coprimary endpoints were a 90% improvement from baseline in Psoriasis Area and Severity Index scores (PASI 90) at weeks 16 and 52. The week 52 PASI 90 response rates were 87% in the risankizumab group and 57% with secukinumab, for a highly significant absolute 30% difference. The week 16 result was a prespecified noninferiority analysis, and here again risankizumab met its mark, with a PASI 90 rate of 74%, statistically noninferior to the 66% rate with secukinumab, even though at that point patients had received only two doses of risankizumab, versus seven doses of secukinumab.

The PASI 100 response rate at 52 weeks, a key secondary endpoint, was 66% with risankizumab and 40% with secukinumab. Another secondary endpoint was achievement of a static Physician Global Assessment score of 0 or 1 – clear or almost clear – at week 52; the rates were 88% with risankizumab, 58% with secukinumab.

Ninety-two percent of participants randomized to risankizumab completed the full 52-week study, as did 82.8% of the secukinumab group. The nearly 10% absolute lower completion rate in the secukinumab group was driven by a higher rate of lack of efficacy – 4.3%, compared to 0.6% for risankizumab – and a greater incidence of adverse events. Indeed, treatment-emergent adverse events were fourfold more common in the secukinumab arm, with a rate of 4.9%, versus 1.2% with risankizumab, according to Dr. Warren.

He reported receiving research grants from and serving as a consultant to the study sponsor, AbbVie, as well as roughly a dozen other pharmaceutical companies.

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