Transfusion Associated HCV in a Pediatric Population

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00005402
First received: May 25, 2000
Last updated: June 23, 2005
Last verified: April 2002
  Purpose

To identify a large cohort of children transfused in the decade prior to second-generation anti-hepatitis C virus (HCV) donor screening (1982-1992). This will not only identify cases for the study of persistent infection and chronic hepatitis in children, but will allow for the determination of the annualized risk of transfusion-associated hepatitis (TAH) infection in children, data that are not currently available.


Condition
Blood Transfusion
Hepatitis, Viral, Human

Study Type: Observational
Study Design: Observational Model: Natural History

Resource links provided by NLM:


Further study details as provided by National Heart, Lung, and Blood Institute (NHLBI):

Study Start Date: May 1996
Estimated Study Completion Date: April 2001
Detailed Description:

BACKGROUND:

Accumulating data indicate that 70 to 80 percent of adults infected with the hepatitis C virus (HCV) develop persistent infection that may be associated with chronic hepatitis, cirrhosis, hepatocellular carcinoma and end-stage liver disease. Despite these potential mortal outcomes, the progression is indolent, and serious chronic sequelae may not occur for 10 to 50 years, by which time many transfused adults have died of unrelated causes. Infants and children, on the other hand, are far more likely to survive their transfusion episode, to have a long life span after HCV acquisition and, by inference, to experience the decades-long evolution to HCV-related cirrhosis and hepatocellular carcinoma.

DESIGN NARRATIVE:

The years 1982-1992 have been selected because TAH incidence in adults was still high at that time and because all subjects would be under age 15 at enrollment and unlikely to have been exposed to sexual contact or IV drug use. Maternal testing is performed to exclude perinatal transmission. Sixty-five hundred children who meet the eligibility criteria of the study have been transfused at Children's National Medical Center (CNMC) during this period, and archival serum specimens are available for 22 percent. The total eligible cohort is contacted and asked to provide a blood sample that is tested for antibodies to HCV and to the newly discovered hepatitis G virus (HGV). Subjects found antibody positive on initial screen are enrolled in long-term followup that includes serial determinations for alanine aminotransferase (ALT), other liver-related assays, viral serology with confirmatory testing, PCR for HCV and HGV RNA, HCV genotyping and, in those with evidence of chronic hepatitis, liver biopsy. Biopsy may also be performed on a subset with chronic viremia, but normal ALT, pending approval of an advisory panel of liver experts. A serum repository will be established for evaluation of new diagnostic methods for HCV, HGV, and other etiologic agents of posttranstusion hepatitis.

This study will determine the minimal rate of transfusion-induced HCV and HGV infection and will allow for an annualized incidence estimate and a determination of the national burden of transfusion-induced hepatitis virus infection in children, a value that is currently unknown. In addition, by use of archival samples and the interval from transfusion to testing, the study will determine the duration of infection and rate of viral persistence. Finally, prospective followup with liver biopsy will establish the extent of disease in those chronically infected. If persistent infection and chronic liver disease are as common in children as in adults, this would have major implications for anti-viral therapy programs and might shift treatment emphasis to pediatric populations where response rates might be higher and where long-term benefit would be greater.

  Eligibility

Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

No eligibility criteria

  Contacts and Locations
No Contacts or Locations Provided
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00005402     History of Changes
Other Study ID Numbers: 4319
Study First Received: May 25, 2000
Last Updated: June 23, 2005
Health Authority: United States: Federal Government

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis, Viral, Human
Liver Diseases
Digestive System Diseases
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections

ClinicalTrials.gov processed this record on April 20, 2014