PMID- 21145618 OWN - NLM STAT- MEDLINE DCOM- 20110223 LR - 20191210 IS - 1097-6787 (Electronic) IS - 0190-9622 (Linking) VI - 64 IP - 2 DP - 2011 Feb TI - Efficacy and safety of ABT-874, a monoclonal anti-interleukin 12/23 antibody, for the treatment of chronic plaque psoriasis: 36-week observation/retreatment and 60-week open-label extension phases of a randomized phase II trial. PG - 263-74 LID - 10.1016/j.jaad.2010.01.030 [doi] AB - BACKGROUND: ABT-874, an anti-interleukin-12 and -23 antibody, was previously shown to be significantly more effective compared with placebo during a 12-week phase II study of psoriasis. We report here safety and efficacy data of ABT-874 during subsequent phases of this study. OBJECTIVE: We sought to examine the preliminary efficacy and safety of ABT-874 for moderate to severe psoriasis beyond 12 weeks. METHODS: Patients with chronic plaque psoriasis who responded to ABT-874 during the initial randomized, placebo-controlled, 12-week study phase were eligible for a 36-week observation/retreatment phase. During the subsequent 60-week, open-label extension phase, eligible patients were retreated with one of two ABT-874 dosages. Efficacy was measured using Psoriasis Area and Severity Index and physician global assessment scores; safety was monitored by adverse events (AEs), laboratory parameters, and vital signs. RESULTS: During the observation/retreatment phase, 130 of 180 patients were eligible for retreatment. After 12-week retreatment with ABT-874, 55% to 94% of retreated patients (n = 58) achieved a 75% or greater reduction in Psoriasis Area and Severity Index score. Among patients receiving ABT-874 through the first 48 weeks, there were no deaths and 4 patients with serious AEs; one patient discontinued because of an AE. During the open-label extension (N = 105), there were no deaths or serious infections, and 3 serious AEs. LIMITATIONS: Lack of placebo or active comparator groups limited statistical analysis in later study phases. Dosing differences existed between groups, and only week-12 responders were eligible for retreatment. CONCLUSION: ABT-874 continued to show good efficacy and safety during withdrawal and reinitiation of therapy. CI - Copyright A(c) 2010 American Academy of Dermatology, Inc. Published by Mosby, Inc. All rights reserved. FAU - Kimball, Alexa B AU - Kimball AB AD - Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. harvardskinstudies@partners.org FAU - Gordon, Kenneth B AU - Gordon KB FAU - Langley, Richard G AU - Langley RG FAU - Menter, Alan AU - Menter A FAU - Perdok, Renee J AU - Perdok RJ FAU - Valdes, Joaquin AU - Valdes J CN - ABT-874 Study Investigators LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20101209 PL - United States TA - J Am Acad Dermatol JT - Journal of the American Academy of Dermatology JID - 7907132 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 187348-17-0 (Interleukin-12) RN - 978I8M0P8X (briakinumab) SB - IM MH - Adult MH - Antibodies, Monoclonal/adverse effects/*therapeutic use MH - Antibodies, Monoclonal, Humanized MH - Drug-Related Side Effects and Adverse Reactions MH - Female MH - Humans MH - Interleukin-12/immunology MH - Male MH - Middle Aged MH - Psoriasis/*drug therapy EDAT- 2010/12/15 06:00 MHDA- 2011/02/24 06:00 CRDT- 2010/12/15 06:00 PHST- 2009/09/21 00:00 [received] PHST- 2010/01/14 00:00 [revised] PHST- 2010/01/18 00:00 [accepted] PHST- 2010/12/15 06:00 [entrez] PHST- 2010/12/15 06:00 [pubmed] PHST- 2011/02/24 06:00 [medline] AID - S0190-9622(10)00110-6 [pii] AID - 10.1016/j.jaad.2010.01.030 [doi] PST - ppublish SO - J Am Acad Dermatol. 2011 Feb;64(2):263-74. doi: 10.1016/j.jaad.2010.01.030. Epub 2010 Dec 9.