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MinorPrimary completion date changed from estimate of Jul 23, 2026 to May 13, 2026v52
NotableSponsor changed: Boehringer Ingelheim to LEO Pharmav51
Minor3 versionsRe-verified since Jun 22, 2026, no change to tracked fieldsv48-v50
MinorStudy completion date: Aug 14, 2026 to Sep 2, 2026v47
Minor5 versionsRe-verified since Apr 14, 2026, no change to tracked fieldsv42-v46
Show 39 earlier versionsHide 39 earlier versions
MinorStudy sites revised (35)v41
Minor5 versionsRe-verified since Dec 18, 2025, no change to tracked fieldsv36-v40
MinorStudy completion date: Nov 5, 2026 to Aug 14, 2026
Study sites revised (35)
v35
MinorStudy sites: 34 to 35v34
MinorStudy sites revised (34)v33
MinorRe-verified, no change to tracked fieldsv32
MinorStudy sites: 33 to 34v31
MinorStudy sites: 32 to 33v30
MinorRe-verified, no change to tracked fieldsv29
MinorStudy sites: 33 to 32v28
MinorStudy sites: 32 to 33v27
MinorStudy sites: 33 to 32
Start date: Oct 11, 2023 to Oct 22, 2023
v26
MinorRe-verified, no change to tracked fieldsv25
MinorEnrollment target: estimated 40 to confirmed 42
Primary completion date: Dec 24, 2026 to Jul 23, 2026
Study completion date: Apr 8, 2027 to Nov 5, 2026
v24
MinorTrial status: Recruiting to Active, Not Recruiting
Study sites: 44 to 33
v23
MinorStudy sites: 48 to 44v22
MinorStudy sites: 49 to 48v21
MinorStudy sites: 51 to 49v20
MinorSite details revised at 20 of 51 sitesv19
MinorSite details revised at 1 of 51 sitesv18
MinorStudy sites: 50 to 51v17
MinorStudy sites: 46 to 50v16
MinorStudy sites: 39 to 46v15
MinorStudy sites: 38 to 39v14
MinorSite details revised at 1 of 38 sitesv13
MinorStudy sites: 37 to 38v12
MinorStudy sites: 33 to 37v11
MinorStudy sites: 31 to 33v10
MinorStudy sites: 26 to 31v9
MinorStudy sites: 21 to 26v8
MinorStudy sites: 15 to 21v7
MinorStudy sites: 11 to 15v6
MinorStudy sites: 6 to 11v5
MinorStudy sites: 2 to 6v4
NotableTrial status: Not Yet Recruiting to Recruiting
Study sites: 0 to 2
Start date changed from estimate of Oct 17, 2023 to Oct 11, 2023
v3
Stopped: an ongoing trial was terminated, suspended or withdrawn.
Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This study is open to adults with a serious skin disease called generalized pustular psoriasis (GPP) who have repeated flares of GPP. The purpose of this study is to find out whether a medicine called spesolimab helps people with repeated flares of GPP.
Participants are given a single dose of spesolimab as an infusion into a vein on the first day of an outbreak of GPP. They may be given a second dose 1 week later if doctors think it is helpful. They are also treated for additional GPP flares.
During the time of the study, doctors regularly examine participants' skin for signs of GPP to see how well the treatment works and take blood samples. The doctors also regularly check participants' health and take note of any unwanted effects.