European Commission Approves Johnson & Johnson's ICOTYDE (Icotrokinra), an Oral Peptide IL-23 Receptor Antagonist, for Moderate-to-Severe Plaque Psoriasis in Adults and Adolescents
Johnson & Johnson announced on Monday, September 21, 2026 that the European Commission granted marketing authorization for ICOTYDE (icotrokinra) for adults and adolescents aged 12 and older weighing at least 40 kg with moderate-to-severe plaque psoriasis who are candidates for systemic therapy. J&J calls icotrokinra the first targeted oral peptide that precisely blocks the IL-23 receptor; it was jointly discovered and is being developed under J&J's license and collaboration agreement with Protagonist Therapeutics. The approval rests on the ICONIC program of four Phase 3 studies in about 2,500 patients (ICONIC-LEAD, ICONIC-TOTAL, ICONIC-ADVANCE 1 and 2). In the head-to-head studies, about 70% of patients on icotrokinra reached clear or almost clear skin (IGA 0/1) and 55% reached PASI 90 at week 16. Patients take one pill once daily with water on waking, at least 30 minutes before eating.