Effisayil ON: An open-label, long term extension study to assess the safety and efficacy of spesolimab treatment in patients with Generalized Pustular Psoriasis (GPP)
Latest Information Update: 04 Sep 2026
At a glance
- Drugs Spesolimab (Primary) ; Spesolimab (Primary)
- Indications Generalised pustular psoriasis
- Focus Adverse reactions
- Acronyms Effisayil ON
- Sponsors Boehringer Ingelheim; Boehringer Ingelheim Pharma KG; LEO Pharma AB
Most Recent Events
- 27 Mar 2026 Results presented at the 2026 American Academy of Dermatology (AAD) Annual Meeting.1,2, according to LEO Pharma A/S Media Release.
- 27 Mar 2026 Results presented in the LEO Pharma A/S Media Release.
- 24 Dec 2024 Planned End Date changed from 20 Jan 2028 to 27 Apr 2028.