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Clinical Performance of Abbott RealTime Hepatitis C Virus (HCV) Genotype II Test

This study has been completed.
Sponsor:
Collaborators:
Abbott Diagnostics Division
National Science Council, Taiwan
Department of Health, Executive Yuan, R.O.C. (Taiwan)
Information provided by (Responsible Party):
National Taiwan University Hospital
ClinicalTrials.gov Identifier:
NCT00979979
First received: September 16, 2009
Last updated: October 19, 2014
Last verified: October 2014
  Purpose

Hepatitis C virus (HCV) infection, a leading cause of cirrhosis, hepatocellular carcinoma (HCC) and liver transplantation, affects approximately 170 million individuals worldwide. Combination of peginterferon plus ribavirin therapy has become the current standard of care for chronic hepatitis C (CHC) patients, with an overall sustained virologic response (SVR) rate of 54-63% and more favorable response rates in patients with genotype 2/3 infection than those with genotype 1/4 infection. Therefore, accurate pre-treatment HCV genotype evaluation is of paramount importance to facilitate individualized therapy in the era of response guide therapy and specific-targeted antiviral therapy for HCV (STAT-C).

Currently, direct HCV genetic sequencing for both the 5' untranslated terminal region (5'UTR) and non-structural 5B (NS5B) regions with subsequent phylogenetic tree analysis is considered the gold standard for determining HCV genotype and subtype. However, it is time-consuming and need special laboratory settings. Several commercial available reverse hybridization with type-specific probing assay (Inno-LiPA II) or simplified direct sequencing of the 5'UTR region were used to replace the two region sequencing method (Trugene HCV 5' NC genotyping kit). Nonetheless, data on the overall diagnostic accuracy varied.

The Abbott RealTime HCV Genotype II is an in vitro reverse transcription-polymerase chain reaction (RT-PCR) assay for determining the genotype(s) of HCV in plasma and serum from HCV-infected individuals. Based on genetic similarity, HCV has been classified into six major genotypes (1-6) and numerous subtypes. HCV genotype is predictive of the response of HCV-infected patients to peginterferon plus ribavirin combination therapy. The Abbott RealTime HCV Genotype II assay uses the Abbott m2000sp instrument for processing samples and the Abbott m2000rt instrument for amplification and detection. Furthermore, the Abbott m2000sp provides automated sample transfer and reaction assembly of the assay reagents in the Abbott 96-Well Optical Reaction Plate.

The investigators aimed to evaluate the overall diagnostic accuracy of the currently available commercial HCV genotype kits (Abbott RealTime HCV Genotype II) by using 5'UTR and NS5A gene amplification and direct sequencing as the gold standard.


Condition
Hepatitis C

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Cross-Sectional
Official Title: Clinical Performance of Abbott RealTime HCV Genotype II Test

Resource links provided by NLM:


Further study details as provided by National Taiwan University Hospital:

Primary Outcome Measures:
  • Diagnostic accuracy for HCV genotype testing [ Time Frame: 7 days ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples Without DNA

Patient stored serum with detectable HCV RNA levels


Enrollment: 255
Study Start Date: July 2009
Study Completion Date: October 2013
Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)
Groups/Cohorts
HCV patients
HCV patients with detectable viremia; all sera are tested both by Abbott RealTime HCV genotype II test and by direct HCV sequencing both at 5'UTR and NS5B
Non-HCV patients
Patient without evidence of HCV infection (negative both for anti-HCV and HCV RNA); all sera are both tested by Abbott RealTime HCV genotype II test and by direct HCV sequencing at 5'UTR and NS5B

Detailed Description:

Hepatitis C virus (HCV) infection, a leading cause of cirrhosis, hepatocellular carcinoma (HCC) and liver transplantation, affects approximately 170 million individuals worldwide. Therefore, prevention of HCV transmission and early intervention of HCV infection are urgently needed to reduce or halt the liver-related morbidity and mortality. Combination of peginterferon plus ribavirin therapy has become the current standard of care for chronic hepatitis C (CHC) patients, with an overall sustained virologic response (SVR) rate of 54-63% and more favorable response rates in patients with genotype 2/3 infection than those with genotype 1/4 infection. Therefore, accurate pre-treatment HCV genotype evaluation is of paramount importance to facilitate individualized therapy in the era of response guide therapy and specific-targeted antiviral therapy for HCV (STAT-C).

Currently, direct HCV genetic sequencing for both the 5' untranslated terminal region (5'UTR) and non-structural 5B (NS5B) regions with subsequent phylogenetic tree analysis is considered the gold standard for determining HCV genotype and subtype. However, it is time-consuming and need special laboratory settings. Several commercial available reverse hybridization with type-specific probing assay (Inno-LiPA II) or simplified direct sequencing of the 5'UTR region were used to replace the two region sequencing method (Trugene HCV 5' NC genotyping kit). Nonetheless, data on the overall diagnostic accuracy varied.

The Abbott RealTime HCV Genotype II is an in vitro reverse transcription-polymerase chain reaction (RT-PCR) assay for determining the genotype(s) of HCV in plasma and serum from HCV-infected individuals. Based on genetic similarity, HCV has been classified into six major genotypes (1-6) and numerous subtypes. HCV genotype is predictive of the response of HCV-infected patients to peginterferon plus ribavirin combination therapy. The Abbott RealTime HCV Genotype II assay uses the Abbott m2000sp instrument for processing samples and the Abbott m2000rt instrument for amplification and detection. Furthermore, the Abbott m2000sp provides automated sample transfer and reaction assembly of the assay reagents in the Abbott 96-Well Optical Reaction Plate.

The investigators aimed to evaluate the overall diagnostic accuracy of the currently available commercial HCV genotype kits (Abbott RealTime HCV Genotype II) by using 5'UTR and NS5A gene amplification and direct sequencing as the gold standard.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

255 HCV patients both positive for anti-HCV and HCV RNA and 18 patients without ant-HCV and HCV RNA; all 255 patients were tested for Abbott RealTime genotype II test and direct HCV sequencing at 5'UTR and NS5B for the sensitivity, specificity, and the overall diagnostic accuracy.

Criteria

Inclusion Criteria:

  • HCV patients with both positive for anti-HCV and HCV RNA (Cobas Taqman, Roche Diagnostics, LOQ:25 IU/mL and LOD:10 IU/mL)
  • Patients with signed informed consent

Exclusion Criteria:

  • Patients without signed informed consent
  • HCV patients without detectable HCV RNA (Cobas Taqman, Roche Diagnostics)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00979979

Locations
Taiwan
National Taiwan University Hospital, Yun-Lin Branch
Douliou, Taiwan
Far Eastern Memorial Hospital
Taipei, Taiwan
National Taiwan University Hospital
Taipei, Taiwan
Taipei Municipal Hospital, Ren-Ai Branch
Taipei, Taiwan
Sponsors and Collaborators
National Taiwan University Hospital
Abbott Diagnostics Division
National Science Council, Taiwan
Department of Health, Executive Yuan, R.O.C. (Taiwan)
Investigators
Study Chair: Chen-Hua Liu, MD National Taiwan University Hospital
Study Director: Jia-Horng Kao, MD, PhD National Taiwan University Hospital
Principal Investigator: Chun-Jen Liu, MD, PhD National Taiwan University Hospital
Principal Investigator: Cheng-Chao Liang, MD, BS Far Eastern Memorial Hospital
Principal Investigator: Chih-Lin Lin, MD, BS Taipei Municipal Hospital, Ren-Ai Branch
Principal Investigator: Chen-Hua Liu, MD National Taiwan University Hospital, Yun-Lin Branch
  More Information

No publications provided

Responsible Party: National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT00979979     History of Changes
Other Study ID Numbers: 200906047D
Study First Received: September 16, 2009
Last Updated: October 19, 2014
Health Authority: Taiwan: Department of Health

Keywords provided by National Taiwan University Hospital:
Hepatitis C
Genotype
Realtime PCR

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

ClinicalTrials.gov processed this record on November 20, 2014