Record status This record was last updated February 13, 2024 (before its estimated July 2025 completion). Its status may not reflect the trial's current state.
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MinorChangedRegistry marked status Unknown (sponsor has not verified the record since Feb 2024); last known: Recruiting
NotablePrimary completion date: Jul 2024 to Jul 2025v40Show 6 more changesShow less
Trial status: Recruiting to Unknown
Enrollment target: 1009 to 1500
Study sites: 16 to 15
Study completion date: Dec 2024 to Jul 2026
Study description revised
Publications: 29 to 39
MinorEnrollment target: 1100 to 1009
Study description revised
Site contacts updated at 4 of 16 sites
Publications: 26 to 29
v39
NotablePrimary completion date: Jul 2019 to Jul 2024
Study completion date: Dec 2019 to Dec 2024
Site contacts updated at 13 of 16 sites
Publications: 19 to 26
v38
Re-verified, no change to tracked fieldsv37
Show 35 earlier versionsHide 35 earlier versions
NotableLead sponsor: Mendel Tuchman to Andrea Gropman
Study sites: 14 to 16
v36
MinorPublications: 13 to 19v35
MinorEligibility criteria expanded, about 135 words
Study description shortened, about 33 words
Site contacts updated at 2 of 14 sites
Publications: 11 to 13
v34
MinorStudy sites revised (14)v33
NotableLead sponsor: Children's National Research Institute to Mendel Tuchman
Primary completion date: Jul 2014 to Jul 2019
Study completion date: Jul 2014 to Dec 2019
v32
NotableEnrollment target: 550 to 1100
Publications: 8 to 11
v31
NotableLead sponsor: Office of Rare Diseases (ORD) to Children's National Research Institutev30Show 7 more changesShow less
Primary completion date: Sep 2009 to Jul 2014
Enrollment target: 440 to 550
Study sites: 15 to 14
Study completion date: Sep 2010 to Jul 2014
Study description revised
Collaborators: 1 to 3
Publications: 4 to 8
MinorStudy sites: 14 to 15v29
MinorStudy sites revised (14)v28
MinorStudy sites: 13 to 14v27
MinorStudy description shortened, about 31 words
Site contacts updated at 10 of 13 sites
Publications: 5 to 4
v26
MinorStudy sites: 12 to 13v25
MinorStudy sites: 11 to 12v24
MinorStudy sites: 10 to 11v23
MinorStudy sites: 9 to 10v22
MinorPrimary completion date: Sep 2009
Study completion date: Sep 2010
v21
MinorStudy sites: 8 to 9v20
MinorSite details revised at 5 of 8 sitesv19
NotableEnrollment target: 1500 to 440
Study title revised
v18
MinorSite details revised at 1 of 8 sitesv17
MinorSite details revised at 2 of 8 sitesv16
MinorCollaborators expanded, about 5 wordsv15
MinorSite details revised at 1 of 8 sitesv14
2 versionsRe-verified since May 22, 2006, no change to tracked fieldsv12-v13
MinorSite details revised at 6 of 8 sitesv11
MinorSite contacts updated at 6 of 8 sitesv10
MinorEligibility criteria shortened, about 11 words
Study description expanded, about 34 words
v9
NotableTrial status: Not Yet Recruiting to Recruiting
Start date: Mar 2006 to Feb 2006
Site details revised at 8 of 8 sites
v8
MinorStart date: Jan 2006 to Mar 2006v7
MinorStart date: Dec 2005 to Jan 2006v6
MinorEligibility criteria revisedv5
Re-verified, no change to tracked fieldsv4
MinorStart date: Nov 2005 to Dec 2005v3
MinorStart date: Oct 2005 to Nov 2005v2
Study First Submitted
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.
Urea cycle disorders (UCD) are a group of rare inherited metabolism disorders. Infants and children with UCD commonly experience episodes of vomiting, lethargy, and coma. The purpose of this study is to perform a long-term analysis of a large group of individuals with various UCDs. The study will focus on the natural history, disease progression, treatment, and outcome of individuals with UCD.
Trial Details
NCT Number
NCT00237315
Lead Sponsor
Andrea Gropman Collaborators: National Center for Research Resources (NCRR), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Rare Diseases Clinical Research Network