StoppedTrial terminatedSponsor's reason: Enrollment has declined and remaining participants have been on study more than three years. Continued study visits/data collection are no longer considered necessary. This is not expected to affect study interpretation or the overall benefit-risk.Show 4 more changesShow less
Primary completion date changed from estimate of Dec 2027 to Sep 9, 2026
Eligibility criteria expanded, about 20 words
Site details revised at 1 of 28 sites
Publications: details revised at 1 of 1 entry
NotableSponsor changed: GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc. to Gossamer Bio USA, Inc.v25
3 versionsRe-verified since Jan 20, 2026, no change to tracked fieldsv22-v24
MinorStudy sites: 30 to 28v21
Show 19 earlier versionsHide 19 earlier versions
MinorStudy sites: 31 to 30v20
MinorStudy sites: 37 to 31v19
MinorTrial status: Recruiting to Active, Not Recruiting
Enrollment target: estimated 100 to confirmed 74
Study sites: 33 to 37
v18
NotablePrimary and study completion dates: Jul 2025 to Dec 2027
Study sites: 29 to 33
Secondary endpoints: details revised at 1 of 1 entry
v17
MinorStudy sites: 28 to 29v16
MinorStudy sites: 26 to 28v15
MinorStudy sites: 22 to 26v14
MinorStudy sites: 21 to 22v13
MinorStudy sites: 16 to 21v12
MinorStudy sites: 14 to 16v11
NotablePrimary and study completion dates: Dec 2023 to Jul 2025
Eligibility criteria expanded, about 7 words
Secondary endpoints: details revised at 1 of 1 entry
v10
MinorStudy sites: 13 to 14v9
MinorStudy sites: 12 to 13v8
MinorStudy sites: 9 to 12v7
MinorStudy sites: 6 to 9v6
MinorStudy sites: 5 to 6v5
MinorStudy sites: 4 to 5v4
MinorStudy sites: 1 to 4v3
NotableTrial status: Not Yet Recruiting to Recruiting
Stopped: an ongoing trial was terminated, suspended or withdrawn.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 open-label extension study will evaluate the long-term effects of GB002 (seralutinib) in subjects who previously participated in a GB002 PAH study.