Little is known about the factors that cause biliary atresia nor the factors that influence disease progression. The purpose of this study is to collect the pertinent clinical information, genetic material and body fluid samples to enable investigators to address the following aims: To identify the gene or genes implicated in the etiology of BA; To characterize the natural history of the older, non-transplanted child with BA.
Little is known about the factors that cause biliary atresia nor the factors that influence disease progression. A variety of genetic, autoimmune and environmental influences have been hypothesized to be important. Most studies to date have focused on the neonate and young child with BA, yet the older surviving child with BA can provide important information about genetics, as well as, natural history. The purpose of this study is to collect the pertinent clinical information, genetic material and body fluid samples to enable investigators to address the following hypotheses: Hypothesis 1: A genetic defect is a likely causative factor for BA among children with BA and multiple congenital anomalies. Hypothesis 2a: Sentinel events such as variceal bleeding, ascites and growth failure are earlier predictors of death or need for liver transplantation than the pediatric end-stage liver disease score (PELD). Hypothesis 2b: Health related quality of life will be impaired compared to healthy age matched children and relate to severity of illness. Hypothesis 2c: Growth failure as measured by anthropometrics and nutritional supplementation will be predictive of onset of sentinel events (ascites, variceal bleed, death, and transplant) in the following 24 months. This study will be performed by the Childhood Liver Disease Research Network (ChiLDReN), a National Institute of Diabetes \& Digestive and Kidney Diseases (NIDDK) funded network.
Study Type
OBSERVATIONAL
Enrollment
1,265
Children's Hospital of Los Angeles
Los Angeles, California, United States
RECRUITINGTo identify the gene or genes implicated in the etiology of BA
The genetics of BA may be investigated on two levels. The first is to identify a group of patients whose etiology is a result of a genetic defect and the second is to examine the influence of genetics on disease acquisition.
Time frame: Specimens for this aim are collected once during study, usually at baseline.
Define the natural history of the older, non-transplanted child with biliary atresia
Understanding the natural history of a disease is a prerequisite to interpreting disease severity, identifying patterns of illness, identifying early predictors of outcome and understanding the advantages or trade-offs of therapeutic interventions.
Time frame: Observational information collected at entrance into study as well as at each yearly follow-up visit.
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University of California at San Francisco
San Francisco, California, United States
COMPLETEDChildren's Hospital Colorado
Aurora, Colorado, United States
RECRUITINGChildren's Healthcare of Atlanta - Emory University
Atlanta, Georgia, United States
RECRUITINGAnn & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, United States
RECRUITINGRiley Children's Hospital
Indianapolis, Indiana, United States
COMPLETEDJohns Hopkins School of Medicine
Baltimore, Maryland, United States
COMPLETEDWashington University School of Medicine
St Louis, Missouri, United States
COMPLETEDMount Sinai Medical Center
New York, New York, United States
COMPLETEDChildren's Hospital Medical Center
Cincinnati, Ohio, United States
RECRUITING...and 6 more locations