PMID- 36478476 OWN - NLM STAT- MEDLINE DCOM- 20230320 LR - 20230320 IS - 1468-3083 (Electronic) IS - 0926-9959 (Linking) VI - 37 IP - 4 DP - 2023 Apr TI - Oral orismilast: Efficacy and safety in moderate-to-severe psoriasis and development of modified release tablets. PG - 711-720 LID - 10.1111/jdv.18812 [doi] AB - BACKGROUND: Orismilast is a high-potency phosphodiesterase 4 (PDE4) inhibitor with enhanced selectivity for the PDE4B and PDE4D subtypes. OBJECTIVES: The objective of this phase 2a trial was to examine the efficacy and safety of orismilast for psoriasis using a first-generation immediate-release (IR) formulation. The objective of the subsequent phase 1 trial was to test new formulations designed to minimize the gastrointestinal (GI)-related adverse events (AEs) observed with the first-generation IR formulation. We examined the following: (1) pharmacokinetic (PK) properties of orismilast modified release (MR) and IR, (2) food effects on PK properties of orismilast MR or IR, (3) safety of orismilast MR compared to placebo. METHODS: In a phase 2a prospective, randomized, double-blind, placebo-controlled trial, patients with moderate-to-severe psoriasis were randomized to receive 30 mg oral orismilast IR or placebo over 16 weeks. The single-site phase 1 trial consisted of three parts: (1) participants received a single 30 mg dose of orismilast MR and IR (open-label), (2) participants received 30 mg orismilast MR or IR under either fasting condition, following a high-fat meal or low-fat meal (open-label) and (3) participants received up to 60 mg orismilast MR twice-daily or a placebo for 17 days (double-blind). RESULTS: In the phase 2a trial, treatment with orismilast IR significantly improved the mean Psoriasis Area Severity Index score at week 16 compared to placebo. The phase 1 trial revealed comparable PK properties of the orismilast MR and IR formulations, with participants in the orismilast MR group experiencing fewer GI-related AEs than those receiving orismilast IR (16.7% vs. 33.3%). CONCLUSION: Orismilast IR displayed higher efficacy compared to placebo in patients with moderate-to-severe psoriasis at week 16. Orismilast MR had similar PK properties and fewer GI disorders compared to the IR formulation in healthy participants. Future development of orismilast will be based on the MR formulation. CI - (c) 2022 The Authors. Journal of the European Academy of Dermatology and Venereology published by John Wiley & Sons Ltd on behalf of European Academy of Dermatology and Venereology. FAU - Warren, Richard B AU - Warren RB AD - Dermatology Centre, Salford Royal NHS Foundation Trust, Manchester NIHR Biomedical Research Centre, The University of Manchester, Manchester, UK. FAU - Strober, Bruce AU - Strober B AUID- ORCID: 0000-0002-8394-2057 AD - Yale University and Central Connecticut Dermatology, Connecticut, New Haven, USA. FAU - Silverberg, Jonathan I AU - Silverberg JI AUID- ORCID: 0000-0003-3686-7805 AD - George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA. FAU - Guttman, Emma AU - Guttman E AUID- ORCID: 0000-0002-9363-324X AD - Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA. FAU - Andres, Philippe AU - Andres P AD - UNION therapeutics A/S, Hellerup, Denmark. FAU - Felding, Jakob AU - Felding J AD - UNION therapeutics A/S, Hellerup, Denmark. FAU - Tutkunkardas, Deniz AU - Tutkunkardas D AUID- ORCID: 0000-0002-9390-6105 AD - UNION therapeutics A/S, Hellerup, Denmark. FAU - Kjoller, Kim AU - Kjoller K AD - UNION therapeutics A/S, Hellerup, Denmark. FAU - Sommer, Morten O A AU - Sommer MOA AD - UNION therapeutics A/S, Hellerup, Denmark. AD - Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark. FAU - French, Lars E AU - French LE AUID- ORCID: 0000-0002-4629-1486 AD - Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany. AD - Dr. Philip Frost, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA. LA - eng GR - LEO Pharma A/S/ GR - UNION therapeutics A/S/ GR - Manchester National Institute for Health and Care Research (NIHR) Biomedical Research Centre/ GR - NNF20CC0035580/The Novo Nordisk Foundation/ PT - Journal Article PT - Randomized Controlled Trial DEP - 20230118 PL - England TA - J Eur Acad Dermatol Venereol JT - Journal of the European Academy of Dermatology and Venereology : JEADV JID - 9216037 RN - 0 (Phosphodiesterase 4 Inhibitors) RN - 0 (Tablets) SB - IM MH - Humans MH - Prospective Studies MH - *Psoriasis/drug therapy MH - *Phosphodiesterase 4 Inhibitors/adverse effects MH - Tablets/therapeutic use MH - Fasting MH - Double-Blind Method MH - Treatment Outcome EDAT- 2022/12/09 06:00 MHDA- 2023/03/21 06:00 CRDT- 2022/12/08 13:03 PHST- 2022/08/18 00:00 [received] PHST- 2022/11/21 00:00 [accepted] PHST- 2022/12/09 06:00 [pubmed] PHST- 2023/03/21 06:00 [medline] PHST- 2022/12/08 13:03 [entrez] AID - 10.1111/jdv.18812 [doi] PST - ppublish SO - J Eur Acad Dermatol Venereol. 2023 Apr;37(4):711-720. doi: 10.1111/jdv.18812. Epub 2023 Jan 18.