Non-investigational Study to Evaluate Adenovirus Serotype 5 (Ad5) Neutralizing Antibodies (nAb) in Patients With Chronic Hepatitis B Virus (HBV) Mono-infection

Objectives:

Primary Objective:

To identify and preselect patients with chronic HBV mono infection, who are undetectable for anti-Ad5 nAb, currently being treated with nucleo(t)sides, for participation in the TG1050.02 Phase1/1b First in Man (FIM) study.

Secondary Objectives:

To assess the prevalence of undetectable anti-Ad5 nAb in chronic HBV mono-infected patients.

Methodology:

Patients with chronic HBV mono-infection, who are currently being treated with nucleo(t)sides for their HBV infection, will be enrolled in this study to measure Ad5 nAb levels. A single peripheral blood collection (4 mL) will be obtained and Ad5 nAb titers will be measured by a central laboratory using a newly validated assay.

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Key information

Conditions

Chronic Hepatitis B Blood-Borne Infections Chronic Disease Communicable Diseases DNA Virus Infections Digestive System Diseases Disease Attributes Hepadnaviridae Infections Hepatitis Hepatitis B Hepatitis B, Chronic Hepatitis, Chronic Hepatitis, Viral, Human Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Virus Diseases

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Montreal, Canada

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

18 through 65 years of age, inclusive
Patients mono-infected with HBV and currently on HBV treatment for at least 2 years with either the nucleos(t)ide tenofovir (TDF) or entecavir (ENT)
HBV DNA < lower limit of quantification (LLOQ) (eg, HBV deoxyribonucleic acid (DNA) < 20 IU/mL using the Roche COBAS TaqMan assay) within 6 last months
Signed, written Independent Ethics Committee (IEC)-approved informed consent

Exclusion criteria

Patients with either medical history or evidence of cirrhosis, as documented in the medical source, who had: a) any biopsy showing cirrhosis; or b) any transient elastography score of ≥ 10.5 kPa or Fibrosure® / FibroTest ® score of ≥ 0.48 with either test result within past 2 years.

Treatment and study plan

Blood Draw

Other

Primary outcomes

Immunology analysis: Serum titers of Adenovirus serotypes 5 (Ad5) neutralizing antibodies (nAb)

Time frame: Day 1

Sponsors and collaborators

Lead sponsor

Transgene

Industry

Registry information

Important dates

Study start: 2014
Primary completion: 2016
Study completion: 2016
First posted: Feb 4, 2015
Registry last updated: Feb 2, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed