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EPIK-P4: A Phase II Single-arm Study to Assess the Efficacy, Safety and Pharmacokinetics of Alpelisib (BYL719) in Pediatric and Adult Patients With PIK3CA-related Overgrowth Spectrum (PROS)
NotablePrimary completion pushed from Aug 2, 2028 to Jan 29, 2029Enrollment increased: 104 → 140 participants · Completion pushed from Sep 30, 2030 to Jun 18, 2031 · Secondary endpoints: 17 to 18 · 3 moreShow 6 more changesShow less
Enrollment increased: 104 → 140 participants
Completion pushed from Sep 30, 2030 to Jun 18, 2031
Secondary endpoints: 17 to 18
Study description shortened, about 8 words
Site contacts updated at 1 of 39 sites
Eligibility criteria expanded, about 1 word
MinorStudy sites: 38 to 39Eligibility criteria expanded, about 14 words · Secondary endpoints: details revised at 12 of 17 entries · Study description expanded, about 2 wordsShow 3 more changesShow less
Eligibility criteria expanded, about 14 words
Secondary endpoints: details revised at 12 of 17 entries
Study description expanded, about 2 words
MinorStudy sites: 37 to 38v24
MinorStudy sites: 35 to 37v23
Show 8 earlier versionsHide 8 earlier versions
MinorStudy sites: 33 to 35v22
MinorStudy sites: 32 to 33v21
MinorRe-verified, no change to tracked fieldsv20
MinorStudy sites: 30 to 32v19
MinorStudy sites: 29 to 30v18
MinorStudy sites: 28 to 29v17
MinorStudy sites: 27 to 28v16
MinorRe-verified, no change to tracked fieldsv15
MinorTrial sites expanded: 22 → 27 locationsv14
MinorSite details revised at 4 of 22 sitesv13
MinorStudy sites: 20 to 22v12
MinorStudy sites: 19 to 20v11
MinorRe-verified, no change to tracked fieldsv10
MinorStudy sites: 18 to 19v9
MinorStudy sites: 16 to 18v8
MinorStudy sites: 6 to 16v7
MinorStudy sites: 4 to 6v6
MinorStudy sites: 3 to 4v5
MinorStudy sites: 2 to 3v4
MinorStudy sites: 1 to 2v3
NotableTrial status: Not Yet Recruiting to RecruitingStudy sites: 0 to 1 · Start date changed from estimate of Oct 21, 2025 to Oct 9, 2025v2Show 2 more changesShow less
Study sites: 0 to 1
Start date changed from estimate of Oct 21, 2025 to Oct 9, 2025
MinorStudy First Submitted
Stopped: an ongoing trial was terminated, suspended or withdrawn.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 designed to demonstrate the efficacy and assess safety and tolerability of oral daily alpelisib in participants with PIK3CA-related overgrowth spectrum (PROS).