PMID- 34967916 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220217 IS - 2193-8210 (Print) IS - 2190-9172 (Electronic) VI - 12 IP - 2 DP - 2022 Feb TI - Ixekizumab 80 mg Every 2 Weeks Treatment Beyond Week 12 for Japanese Patients with Generalized Pustular Psoriasis and Erythrodermic Psoriasis. PG - 481-494 LID - 10.1007/s13555-021-00666-x [doi] AB - INTRODUCTION: In 2018, ixekizumab (80 mg every 2 weeks [Q2W] beyond Week 12) received approval in Japan for patients with generalized pustular psoriasis (GPP) and erythrodermic psoriasis (EP). This open-label study evaluated the efficacy and safety of ixekizumab (80 mg Q2W from Week 12 to Week 20) in Japanese patients with GPP and EP. METHODS: Seven patients with GPP and five patients with EP were enrolled. An initial dose of 160 mg (subcutaneous [SC] injection) was followed by 80 mg Q2W SC until Week 12. Primary endpoint assessed global improvement score (GIS) by comparing psoriatic findings, Static Physician Global Assessment, Psoriasis Area and Severity Index score, and other evaluations with those at the baseline and were graded as 1 = resolved, 2= improved, 3 = unchanged, and 4 = worsened. Patients who showed GIS = 1 (resolved) at Week 12 completed the study. Patients with GIS >/= 2 continued to receive ixekizumab 80 mg Q2W until Week 20. RESULTS: At Week 12, four of seven patients with GPP showed "resolved," two showed "improved," and one showed "worsened." Of five patients with EP, one showed "resolved" and four showed "improved." Two patients with GPP and four patients with EP continued ixekizumab treatment until Week 20. At Week 20, one of the two patients with GPP showed "resolved" and one patient showed "improved." All four patients with EP showed "improved." One non-drug related serious adverse event was reported by one patient with EP at Week 12. From Week 12 to Week 20, no adverse events (AEs) were reported in patients with GPP, but two mild AEs were reported in one of the four patients with EP. CONCLUSIONS: This study indicates that ixekizumab continuous Q2W dosing is efficacious and safe for patients with GPP and EP. CLINICAL TRIAL REGISTRATION: NCT03942042. CI - (c) 2021. The Author(s). FAU - Morita, Akimichi AU - Morita A AD - Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. FAU - Okubo, Yukari AU - Okubo Y AD - Department of Dermatology, Tokyo Medical University, Tokyo, Japan. FAU - Morisaki, Yoji AU - Morisaki Y AD - Eli Lilly Japan K.K., 5-chome-1-28, Isogamidori, Chuo Ward, Kobe, Hyogo, 651-0086, Japan. FAU - Torisu-Itakura, Hitoe AU - Torisu-Itakura H AD - Eli Lilly Japan K.K., 5-chome-1-28, Isogamidori, Chuo Ward, Kobe, Hyogo, 651-0086, Japan. itakura_hitoe@lilly.com. FAU - Umezawa, Yoshinori AU - Umezawa Y AD - Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan. LA - eng SI - ClinicalTrials.gov/NCT03942042 PT - Journal Article DEP - 20211229 PL - Switzerland TA - Dermatol Ther (Heidelb) JT - Dermatology and therapy JID - 101590450 PMC - PMC8717693 OAB - Ixekizumab is an anti-interleukin-17 treatment for a skin condition with thick and scaly patches called psoriasis. Ixekizumab (initial dose of 160 mg followed by 80 mg administered every 2 weeks [Q2W] from Week 2 through Week 12 and thereafter 80 mg every 4 weeks [Q4W]) has been approved in Japan; people who have not achieved 100% clear skin after taking ixekizumab for 12 weeks can continue to receive ixekizumab Q2W rather than monthly. However, this approval partially lacked data from people with rare types of psoriasis, generalized pustular psoriasis (GPP) and erythrodermic psoriasis (EP). The aim of this study was to look at the effectiveness and safety of continuous Q2W dosing of ixekizumab in Japanese people with GPP and EP beyond Week 12. Researchers aimed to find out whether psoriasis symptoms in this population improved if they continued Q2W treatment for > 12 weeks. Seven people with GPP and 5 with EP participated in the study (12 in total). Participants initially received 160 mg under-the-skin injection of ixekizumab, followed by 80 mg injections Q2W. Two GPP and four EP participants continued to receive ixekizumab after 12 weeks up to Week 20. One GPP participant achieved 100% clear skin, and another GPP participant and all 4 EP participants showed improvement. No participants died, and safety findings were similar to previous ixekizumab studies from both Japanese and non-Japanese people. This study suggests that people with GPP and EP who continue to take ixekizumab Q2W after 12 weeks may show improvements in their psoriasis with a well-tolerated safety profile. OABL- eng OTO - NOTNLM OT - Erythrodermic psoriasis OT - Generalized pustular psoriasis OT - Ixekizumab OT - Q2W EDAT- 2021/12/31 06:00 MHDA- 2021/12/31 06:01 PMCR- 2021/12/29 CRDT- 2021/12/30 12:47 PHST- 2021/09/29 00:00 [received] PHST- 2021/12/10 00:00 [accepted] PHST- 2021/12/31 06:00 [pubmed] PHST- 2021/12/31 06:01 [medline] PHST- 2021/12/30 12:47 [entrez] PHST- 2021/12/29 00:00 [pmc-release] AID - 10.1007/s13555-021-00666-x [pii] AID - 666 [pii] AID - 10.1007/s13555-021-00666-x [doi] PST - ppublish SO - Dermatol Ther (Heidelb). 2022 Feb;12(2):481-494. doi: 10.1007/s13555-021-00666-x. Epub 2021 Dec 29.