We propose to establish a Rare Disease Clinical Research Center (RDCRC) at the Children's National Medical Center (CNMC) in Washington, D.C. The RDCRC will draw support from both the Pediatric General Clinical Research Center at CNMC/Georgetown University Medical Center (GUMC) as well as its Mental Retardation and Developmental Disabilities Research Center (MRDDRC). The unifying clinical theme of the RDCRC is the study of urea cycle disorders (UCD). This RDCRC will consist of a network of 5 academic institutions, each of which has GCRC/MRDDRCs [CNMC/GUMC, Children's Hospital of Philadelphia, Vanderbilt University, Baylor Medical Collage and University of California at Los Angeles]. The proposed RDCRC will comprise a multidisciplinary team of 10 investigators in the following specialties: Genetics, Metabolism, Developmental Pediatrics, Clinical Pharmacology, Neurology, Psychology, Biostatistics, and Neuroimaging. Mark L. Batshaw, M.D., the Director of the CNMC MRDDRC, will serve as Principal Investigator; and Mendel Tuchman, M.D., Director of the PCRC at CNMC, will serve as Co-Director. The primary goals of the RDCRC are to: 1) Establish a registry and nation-wide network of regional centers for the diagnosis, treatment and clinical research in UCD; 2) Conduct a longitudinal study to determine the natural history of UCD; 3) Conduct a clinical trial of an investigational new drug (IND), N-carbamyI-L-glutamate, for treatment of these disorders; 4) Conduct a demonstration/pilot project to develop a novel method for measuring in vivo ureagenesis in UCD that will be important for diagnosis and classification of patients and for evaluation of treatment efficacy; 5) Train graduate students, pediatric residents, clinical fellows and junior faculty members in the field of inborn errors of metabolism; and 6) Develop and maintain UCD website content that will: (a) include guidelines for health care providers regarding diagnosis and treatment; (b) provide information to the lay public regarding consultation and treatment at major centers; and (c) provide links to recent scientific literature for interested investigators. This initiative will be undertaken in close. collaboration with the National Urea Cycle Disease Foundation (NUCDF), the leading public advocacy organization for this group of diseases.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Specialized Center--Cooperative Agreements (U54)
Project #
5U54RR019453-04
Application #
7118624
Study Section
Special Emphasis Panel (ZRG1-EDC-1 (50))
Program Officer
Collier, Elaine S
Project Start
2003-09-30
Project End
2008-07-31
Budget Start
2006-08-01
Budget End
2007-07-31
Support Year
4
Fiscal Year
2006
Total Cost
$1,202,075
Indirect Cost
Name
Children's Research Institute
Department
Type
DUNS #
143983562
City
Washington
State
DC
Country
United States
Zip Code
20010
Waisbren, Susan E; Gropman, Andrea L; Members of theĀ Urea Cycle Disorders Consortium (UCDC) et al. (2016) Improving long term outcomes in urea cycle disorders-report from the Urea Cycle Disorders Consortium. J Inherit Metab Dis 39:573-84
Lee, B; Diaz, G A; Rhead, W et al. (2016) Glutamine and hyperammonemic crises in patients with urea cycle disorders. Mol Genet Metab 117:27-32
Nagamani, Sandesh C S; Diaz, George A; Rhead, William et al. (2015) Self-reported treatment-associated symptoms among patients with urea cycle disorders participating in glycerol phenylbutyrate clinical trials. Mol Genet Metab 116:29-34
Waisbren, Susan E; He, Jianping; McCarter, Robert (2015) Assessing Psychological Functioning in Metabolic Disorders: Validation of the Adaptive Behavior Assessment System, Second Edition (ABAS-II), and the Behavior Rating Inventory of Executive Function (BRIEF) for Identification of Individuals at Risk. JIMD Rep 21:35-43
Ah Mew, Nicholas; McCarter, Robert; Daikhin, Yevgeny et al. (2014) Augmenting ureagenesis in patients with partial carbamyl phosphate synthetase 1 deficiency with N-carbamyl-L-glutamate. J Pediatr 165:401-403.e3
Berry, Susan A; Lichter-Konecki, Uta; Diaz, George A et al. (2014) Glycerol phenylbutyrate treatment in children with urea cycle disorders: pooled analysis of short and long-term ammonia control and outcomes. Mol Genet Metab 112:17-24
Batshaw, Mark L; Groft, Stephen C; Krischer, Jeffrey P (2014) Research into rare diseases of childhood. JAMA 311:1729-30
Ah Mew, Nicholas; Krivitzky, Lauren; McCarter, Robert et al. (2013) Clinical outcomes of neonatal onset proximal versus distal urea cycle disorders do not differ. J Pediatr 162:324-9.e1
Mokhtarani, M; Diaz, G A; Rhead, W et al. (2013) Elevated phenylacetic acid levels do not correlate with adverse events in patients with urea cycle disorders or hepatic encephalopathy and can be predicted based on the plasma PAA to PAGN ratio. Mol Genet Metab 110:446-53
Gropman, Andrea L; Prust, Morgan; Breeden, Andrew et al. (2013) Urea cycle defects and hyperammonemia: effects on functional imaging. Metab Brain Dis 28:269-75

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