Principal Investigator: Juan  Gallegos-Orozco
Keywords: Hepatitis , Hepatitis C Department: Gastroenterology
IRB Number: 00057304 Co Investigator:  
Specialty: Gastroenterology
Sub Specialties: Hepatology
Recruitment Status: Recruiting

Contact Information

Tiffany Tomkinson

Brief Summary


The study objective is to evaluate the clinical utility of the Cepheid HCV assay as an aid in the management of patients chronically infected with hepatitis C and undergoing antiviral therapy.

Negative predictive value (NPV) and positive predictive value (PPV) for achieving a sustained viral response (SVR), and odd ratios of an association between viral loads during treatment and SVR, will be calculated based on achievement of rapid viral response (RVR) at week 4 of therapy, early viral response (EVR) at week 12 of therapy, and extended rapid viral response (eRVR) based on type of therapy as defined in section 6.

Concordance in virologic response, including RVR, EVR, eRVR, treatment futility, and SVR between the Cepheid HCV assay and the viral load assay that is the standard of care at the institution will also be calculated.

Proposed Intended Use and Indications for Use

Proposed Intended Use

The Cepheid Hepatitis C virus (HCV) assay is an in vitro nucleic acid amplification real-time polymerase chain reaction (PCR) assay for the quantitative determination of HCV nucleic acid in human K2EDTA plasma and serum of HCV-infected individuals using the Cepheid instrument for automated sample processing, amplification and detection. Specimens containing HCV genotypes 1 – 6 have been validated for quantitation in the assay.

Proposed Indications for Use

The Cepheid HCV assay is intended for use as an aid in the management of HCV-infected individuals undergoing antiviral therapy. The assay measures HCV RNA levels at baseline and during treatment and can be used to predict sustained and non-sustained virologic response to HCV therapy. The results from the Cepheid HCV assay must be interpreted within the context of all relevant clinical and laboratory findings.

This assay is not intended for use as a screening test for the presence of HCV in blood or blood products or as a diagnostic test to confirm the presence of HCV infection.

Inclusion Criteria

Inclusion criteria

• Subject clinical history is available for review by sponsor, FDA or other regulatory agencies.
• Signed and dated informed consent
• Age ≥ 18 years at time of blood draw
• Serologic evidence of genotype 1, 2, or 3 chronic HCV infection
• Subject had measurable HCV-RNA at baseline
• Subjects with genotype 2 or 3 will undergo treatment with peginterferon plus ribavirin or sofosbuvir plus ribavirin
• Subjects with genotype 1 will undergo treatment with telaprevir, sofosbuvir, or simeprevir and peginterferon plus ribavirin, or ledipasvir/sofosbuvir
• Subjects with genotype 1 are treatment naïve or prior relapsers

Exclusion Criteria

Exclusion Criteria

Co-infection with HIV at enrollment

Co-infection with HBV at enrollment

Genotype 1 subjects that are prior partial or null responders

Prior participation in this study (i.e. subjects may not be enrolled more than once in this study)

Current or planned participation in an investigational device or drug study within the duration of this study

Missing or <6 mL sample from >1 required time point (ie: baseline, weeks 4 and 12 of treatment, end of treatment, and end of follow-up)

Sample not collected, processed or stored as required by this protocol


o Type of sample (serum or plasma) may vary between subjects, but all samples for a given subject must be of the same sample type.

o Lower sample volumes may be acceptable by protocol waiver and with prior approval of the Sponsor study manager.

o Collection of a week 24 on-treatment sample is not required for treatments going longer than 24 weeks, but collection of a sample at the patient’s week 24 visit may be necessary to ensure collection of the end of therapy sample for those subjects whose therapy is determined to be complete at week 24.

o For prospectively collected samples, K2EDTA tubes will be provided by the Sponsor. Serum or K2EDTA plasma is acceptable for stored samples that meet all other inclusion/exclusion criteria, including documentation of appropriate sample collection, handling and storage.