Access HBV Assays - European Union (EU) Clinical Trial Protocol -

Beckman Coulter

Status: Enrolling

Conditions: HBV

Treatments: Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Study type: Observational

Funder types: Industry

Identifiers

NCT04904835

HBV-EU-08-19 (Other Identifier)

DC-TR18-0408

Details and patient eligibility

About

The objective of this protocol is the collection and testing of clinical samples to determine the clinical performance of the Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer.

The study will involve a multicenter, prospective and retrospective collection of samples, and testing of samples with the investigational Hepatitis B Virus assays as required per the European Union Common Technical Specification. All samples collected will be anonymized or pseudo-anonymised, leftover, remnant samples. Pseudo-anonymised collection of samples will require documented patient consent (oral or written).

Full description

Sensitivity to final status on presumed HBV serological marker positive subjects will be calculated. Specificity will be calculated from hospitalized patients and blood donors specimens. False Initial Reactive Rate will be calculated on fresh hospitalized patient samples for Access HBsAg assay only (Qualitative).

Enrollment: 21,210 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Subject aged ≥ 18 years,

• Subject who has provided consent (oral or written) or sample collected under waiver

• With sufficient volume to perform clinical trial testing

• And belonging to one of the following enrollment groups:

  • Unselected blood donors
  • Hospitalized patients
  • Presumed HBsAg positive patients by Confirmatory testing of a CE-marked assay
  • Patients having recovered from natural HBV infection, presumed Anti-HBs positive (i.e. Anti-HBs and Anti-HBc Total positive by CE-marked assays)
  • Patients having received HBV vaccination, presumed Anti-HBs positive (confirmed by testing at the time of enrollment, i.e. positive for Anti-HBs and negative for Anti-HBc by CE-marked assays).
  • Presumed Anti-HBc Total positive patients by a CE-marked assay
  • Presumed Anti-HBc IgM positive patients by a CE-marked assay with acute/recent HBV infection 8
  • Presumed HBeAg positive patients by a CE-marked assay
  • Presumed Anti-HBe positive patients by a CE-marked assay
  • Patients with chronic HBV infection

Exclusion criteria

• Samples from subjects already included in the study* (* Patient can be included only once per HBV marker study, but can potentially be enrolled for several separate HBV marker studies.)

Trial design

21,210 participants in 10 patient groups

Unselected blood donors

Description:

leftover samples from unselected blood donors from at least 2 donation centers. Leftover samples to be tested by Access HBV serological marker assays and CE-marked (european compliance marked) predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Hospitalized patients

Description:

Leftover samples to be tested by Access HBV serological marker assays and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Presumed HBsAg positive patients

Description:

Leftover samples from patients at different stages of HBV infection (acute and chronic, minimum 10 per stage of infection), HBsAg positive by a Confirmatory testing of a CE-marked assay, including ≥ 25 "same day" fresh samples (tested ≤1 day after sampling), and minimum 20 high positive samples (\>26 IU/mL) and minimum 20 samples in the cut-off range. If not enough samples in the cut-off range are obtained during the clinical trial, additional HBsAg specimens in the cut-off range will be tested by Research \&Development to fit with Common Technical Specification requirements. Leftover samples to be tested by Access HBsAg assays and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Patients having recovered from natural HBV infection, presumed Anti-HBs positive

Description:

Leftover samples from Patients positive for Anti-HBs and Anti-HBc Total by CE-marked assays. Target is to have at least ¾ of them recovered without HBV antiviral treatment. Leftover samples to be tested by Access anti-HBs assay and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Patients having received HBV vaccination, presumed Anti-HBs positive

Description:

Leftover samples Confirmed as vaccinated by testing at the time of enrollment (i.e. positive for Anti-HBs and negative for Anti-HBc by CE-marked assays).Leftover samples to be tested by Access anti-HBs assay and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Presumed Anti-HBc Total positive patients

Description:

Leftover samples from Patients at different stage of infection (acute, chronic or recovered, minimum 10 per stage of infection) positive for Anti-HBc Total by a CE-marked assay, including ≥ 25 "same day" fresh samples (tested ≤1 day after sampling). Leftover samples to be tested by Access anti-HBc Total and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Presumed Anti-HBc IgM positive patients

Description:

left over samples from Patients with acute/recent HBV infection, positive for Anti-HBc IgM by a CE-marked assay. Leftover samples to be tested by Access anti-HBc IgM assay and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Presumed HBeAg positive patients

Description:

Leftover samples from Patients at different stages of infection (acute and chronic, minimum 5 per stage of infection), positive for HBeAg by a CE-marked assay. Leftover samples to be tested by Access HBeAg assay and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Presumed Anti-HBe positive patients7

Description:

Leftover samples from Patients at different stages of infection (chronic and recovered, minimum 5 per stage of infection), positive for Anti-HBe by a CE-marked assay. Leftover samples to be tested by Access anti-HBe assay and CE-marked predicate assays

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays

Patients with chronic HBV infection

Description:

Leftover samples to be tested by Access anti-HBc IgM assay and CE-marked predicate assay

Treatment:

Diagnostic Test: Access HBV serological marker assays on the DxI 9000 Access Immunoassay Analyzer and CE-marked predicate assays