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Abstract Number: 2878

Randomized, Double-Blind, Placebo-Controlled, Multiple-Dose, Phase 2b Study to Demonstrate the Safety and Efficacy of Tildrakizumab, a High-Affinity Anti–Interleukin-23P19 Monoclonal Antibody, in Patients with Active Psoriatic Arthritis

Philip Mease1, Saima Chohan 2, Ferran J. García Fructuoso 3, Alice Gottlieb 4, Richard C. Chou 5, Alan Mendelsohn 6, Rocco Ballerini 6 and Michael E. Luggen 7, 1Swedish Medical Center/Providence St Joseph Health, and University of Washington, Seattle, WA, 2Arizona Arthritis and Rheumatology Research, PLLC, Phoenix, AZ, USA, Phoenix, AZ, 3Hospital CIMA Sanitas, Barcelona, Spain, Barcelona, Spain, 4Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA, New York City, NY, 5University at Buffalo School of Medicine and Biomedical Sciences, Buffalo, NY, USA, Buffalo, NY, 6Sun Pharmaceutical Industries, Inc., Princeton, NJ, USA, Princeton, NJ, 7Cincinnati Rheumatic Disease Study Group, Inc. and University of Cincinnati College of Medicine, Cincinnati, OH, USA, Cincinnati, OH

Meeting: 2019 ACR/ARP Annual Meeting

Keywords: drug therapy and clinical trials, interleukins (IL), monoclonal antibodies, Psoriatic arthritis

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Session Information

Date: Wednesday, November 13, 2019

Session Title: 6W014: Spondyloarthritis Including Psoriatic Arthritis – Clinical VII: Psoriatic Arthritis Treatment (2876–2881)

Session Type: ACR Abstract Session

Session Time: 9:00AM-10:30AM

Background/Purpose: Tildrakizumab (TIL), a high-affinity anti–interleukin-23p19 monoclonal antibody, is approved for moderate-to-severe plaque psoriasis treatment and is under investigation for PsA. This study evaluated the 24-week efficacy and safety results from a randomized, double-blind, placebo-controlled, multiple-dose, phase 2b TIL study in patients with active PsA (NCT02980692).

Methods: Patients with active PsA were randomized 1:1:1:1:1 to receive TIL (200 mg once every 4 weeks [Q4W] [n = 78], 200 mg every 12 weeks [Q12W] [n = 79], 100 mg Q12W [n = 77], 20 mg Q12W [n = 78] to week 24), or placebo (PBO) Q4W to week 24 (n = 79). Stable concomitant methotrexate or leflunomide use was permitted but not mandated. The primary efficacy endpoint was the proportion of patients who achieved a 20% reduction from baseline in ACR response criteria (ACR20) at week 24. Other outcome measurements included proportion of patients achieving ACR50/70 response and Psoriasis Area and Severity Index (PASI) 75, PASI 90, and changes in swollen and tender joint count at week 24. Safety assessments included monitoring of treatment-emergent adverse events (TEAEs).

Results: Of 500 patients screened, 391 patients met the inclusion criteria (including ≥18 years old, PsA diagnosis with symptoms for 6 months, and ≥3 tender and ≥3 swollen joints). Demographics and baseline disease characteristics are shown in Table 1. There were significantly greater proportions of ACR20/50/70 and PASI 75/90 responders with TIL vs PBO at week 24, and in some cases differences in parameters were noted as early as week 8 (Figure 1 and Table 2).  

The most frequent TEAEs through week 24 included nasopharyngitis (pooled TIL arms: 5.4% [17/312]; PBO: 6.3% [5/79]); and diarrhoea (TIL: 1.3% [4/312]; PBO: 0). There were no reports of candidiasis, inflammatory bowel disease, major adverse cardiac events, or malignancy. No patients discontinued treatment due to TEAEs and no deaths were reported. Serious TEAEs occurred in 2.2% (7/312) of TIL-treated patients vs 2.5% (2/79) in PBO-treated patients.

Conclusion: By week 24, TIL was significantly more efficacious than PBO in the treatment of joint and skin manifestations of PsA. Furthermore, there was a clear separation between TIL and PBO as early as 8 weeks for ACR20 (TIL 200 mg Q4W and 100 mg Q12W) and 12 weeks for both ACR20 (TIL 200 mg doses) and ACR50 (all TIL groups). Shortening the dosing interval from Q12W to Q4W for the 200-mg dose did not result in a measurable increase in skin or joint response scores. There was a low rate of TEAEs in the TIL-treated group.

Editorial support was provided by Claire Daniele, PhD, CMPP; and Marie-Louise Ricketts, PhD, of AlphaBioCom, LLC, and funded by Sun Pharmaceutical Industries, Inc.


Table 1_picture

Table 1. Demographics and Baseline disease characteristics.
BMI, body mass index; BSA, body surface area; GADA, global assessment of disease activity; Q4W, every 4 weeks; Q12W, every 12 weeks; PBO, placebo; SD, standard deviation; TIL, tildrakizumab.

Figure 1. ACR 20/50/70 response rates.
*P <0.05; **P <0.001; ***P <0.0001 vs PBO.
PBO, placebo; Q4W, every 4 weeks; Q12W, every 12 weeks; TIL, tildrakizumab.


Table 2_picture

Table 2. Efficacy endpoints at week 24.
aResponse rates only calculated in patients with BSA ≥3% at baseline, missing responses were imputed as nonresponses. *P <0.05; **P <0.001; ***P <0.0001 vs PBO.
BL, baseline; BSA, Body Surface Area; PASI, Psoriasis Area and Severity Index; PBO, placebo; Q4W, every 4 weeks; Q12W, every 12 weeks; TIL, tildrakizumab.


Disclosure: P. Mease, Abbott, Amgen, Biogen Idec, BMS, Celgene Corporation, Eli Lilly, Genentech, Janssen, Novartis, Pfizer, Roche, UCB, 2, 5, Abbott, Amgen, Biogen Idec, BMS, Eli Lilly, Genentech, Janssen, Pfizer, UCB, 8, AbbVie, 2, 5, 8, Abbvie, 2, 5, 8, Abbvie, Amgen, Bristol Myers Squibb, Boehringer Ingelheim, Celgene, Galapagos, Gilead, Janssen, Lilly, Novartis, Pfizer, Sun, UCB, 5, Abbvie, Amgen, Bristol Myers Squibb, Celgene, Genentech, Janssen, Lilly, Novartis, Pfizer, UCB, 8, Abbvie, Amgen, Bristol Myers Squibb, Celgene, Janssen, Lilly, Novartis, Pfizer, Sun, UCB, 2, AbbVie, Amgen, Bristol-Myers Squibb, Celgene, Genentech, Janssen, Leo, Merck, Novartis, Pfizer and UCB., 5, 8, AbbVie, Amgen, Bristol-Myers Squibb, Celgene, Janssen, Leo, Eli Lilly, Merck, Novartis, Pfizer, Sun Pharmaceutical Industries, Inc., and UCB, 2, Abbvie, Amgen, Brsitol Myers Squibb, Boehringer Ingelheim, Celgene, Galapagos, Gilead, Janssen, Lilly, Novartis, Pfizer, Sun, UCB, 5, Abbvie, Amgen, Brsitol Myers Squibb, Celgene, Genentech, Janssen, Lilly, Novartis, Pfizer, UCB, 8, Abbvie, Amgen, Brsitol Myers Squibb,Celgene, Janssen, Lilly, Novartis, Pfizer, Sun, UCB, 2, Amgen, 2, 5, 6, 8, Amgen, Bristol-Myers Squibb, Celgene, Galapagos, Gilead, GSK, Janssen, Leo, Eli Lilly, Merck, Novartis, Pfizer, Sun Pharmaceutical Industries, and UCB, 5, BMS, 2, 5, 8, Boehringer Ingelheim, 2, 5, Boerhinger Ingelheim, 5, Bristol Myers Squibb, 2, 5, 8, Bristol Myers Squibb Co., 2, 5, 8, Bristol-Myers Squibb, 2, 5, 6, 8, Celgene, 2, 5, 6, 8, Celgene Corp., 2, 5, 8, CORRONA, 5, Eli Lilly, 2, 5, 8, Galapagos, 2, 5, 8, Genentech, 2, 5, 6, 8, Gilead, 2, 5, 8, Janssen, 2, 5, 6, 8, Janssen Inc, 2, 5, 8, Leo, 2, 5, 8, Lilly, 2, 5, 6, 8, Merck, 2, 5, 8, Novartis, 2, 5, 6, 8, Pfizer, 2, 5, 8, Pfizer Inc, 2, 5, 6, Sun, 2, 5, SUN, 2, 5, Sun Pharma, 2, 5, Sun Pharmaceutical Industries, 2, 5, Sun Pharmaceutical Industries, Inc., 2, 5, 8, UCB, 2, 5, 6, 8, UCB Pharma, 2, 5, 8; S. Chohan, None; F. García Fructuoso, AbbVie, 2, 5, 8, Gedeon Richter, 2, 5, 8, Lilly, 2, 5, 8, MedImmune, 2, 5, 8, Nichi-Iko, 2, 5, 8, Pfizer, 2, 5, 8, Sanofi-Aventis, 2, 5, 8, Takeda, 3, 5, 8, UCB, 2, 5, 8; A. Gottlieb, AbbVie, 5, 6, Abbvie, 5, Allergan, 5, 6, Amgen, 8, Avotres Therapeutics, 5, 6, Beiersdorf, 5, 6, Boehringer Ingelheim, 2, 5, 6, Boerhinger Ingelheim, 2, 5, Bristol Myers Squibb Co., 5, Bristol-Myers Squibb, 5, 6, Celgene Corp, 5, Celgene Corp., 5, 6, Dermira, 5, 6, Eli Lilly, 5, 6, 8, 9, Foamix, Incyte, 2, 5, 6, Janssen, 2, 5, 6, 8, Janssen Inc, 2, 5, Leo, 5, LEO, 5, 6, Lily, 5, Merck, Novartis, 2, 5, 6, 8, Ortho Dermatologics, 8, Reddy Labs, 5, 6, Sun Pharmaceutical Industries, 5, Sun Pharmaceutical Industries, Inc., 5, 6, 8, UCB, 2, 5, 6, Valeant, 5, 6, XBiotech, 2, 5, 6, Xbiotech, 2, 5; R. Chou, Sun Pharmaceutical Industries, Inc., 5; A. Mendelsohn, Johnson and Johnson, 1, 4, Sun Pharmaceutical Industries, Inc, 3, Sun Pharmaceutical Industries, Inc., 3; R. Ballerini, Sun Pharmaceutical Industries, Inc., 3; M. Luggen, AbbVie, 2, 5, 8, Amgen, 2, 5, 8, Genentech, 2, 5, 8, Eli Lilly, 2, 5, 8, Nichi-Iko, 2, 5, 8, Novartis, 2, 5, 8, Pfizer, 2, 5, 8, R-Pharm, 2, 5, 8, Sun Pharmaceutical Industries, Inc., 2, 5, 8.

To cite this abstract in AMA style:

Mease P, Chohan S, García Fructuoso F, Gottlieb A, Chou R, Mendelsohn A, Ballerini R, Luggen M. Randomized, Double-Blind, Placebo-Controlled, Multiple-Dose, Phase 2b Study to Demonstrate the Safety and Efficacy of Tildrakizumab, a High-Affinity Anti–Interleukin-23P19 Monoclonal Antibody, in Patients with Active Psoriatic Arthritis [abstract]. Arthritis Rheumatol. 2019; 71 (suppl 10). https://acrabstracts.org/abstract/randomized-double-blind-placebo-controlled-multiple-dose-phase-2b-study-to-demonstrate-the-safety-and-efficacy-of-tildrakizumab-a-high-affinity-anti-interleukin-23p19-monoclonal-antibody/. Accessed January 30, 2023.
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