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Extended data show ixekizumab efficacy maintained.

A TOTAL OF 82% of psoriasis patients achieved Psoriasis Area and Severity Index (PASI) 75 during long-term treatment with ixekizumab (Taltz), based on interim data from 120 patients followed over a 4-year extension of a randomized trial.

Patients from a previous study of ixekizumab were treated with 120 mg at the start of the extension, and then 80 mg subcutaneously every 4 weeks, Claus Zachariae, MD, of the University Hospital of Copenhagen Gentofte, and his coauthors reported in the Journal of the American Academy of Dermatology.

At week 208, 82% of the patients achieved PASI 75, 65% achieved PASI 90, and 45% achieved PASI 100; 65% scored a 0 or 1 on the Physician's Global Assessment Scale. In addition, 45% of patients reported a score of 0 on the Physician Global Assessment. Patients also reported a decrease in itching from baseline.

A total of 17% of patients experienced a serious adverse event and 87% of the patients experienced at least one treatment-related adverse event by the end of the 4-year extension period. Most of the reported events were mild to moderate; the most common were nasopharyngitis (23%), sinusitis (13%), upper respiratory tract infection (13%), and headache (10%).

The study findings were limited by several factors including the lack of blinding and lack of a placebo, the researchers noted.

However, the results demonstrate "that efficacy can be maintained at high levels for up to 4 years of ixekizumab therapy without apparent increases in health risks or safety issues," for psoriasis patients, Dr. Zachariae and his associates said. "Longer treatment periods in larger numbers of patients will be reported for patients enrolled in the 5-year phase 3 ixekizumab studies."

The study was supported by Eli Lilly. Dr. Zachariae disclosed relationships with Eli Lilly and other companies including Janssen, Novartis, Abb Vie, and Amgen. His coauthors had financial relationships with multiple companies.



SOURCE: Zachariae C et al. J Am Acad Dermatol. 2018 Aug;79(2):294-301.e6.

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Title Annotation:PSORIASIS
Author:Splete, Heidi
Publication:Dermatology News
Date:Sep 1, 2018
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