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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02355951
Recruitment Status : Completed
First Posted : February 4, 2015
Last Update Posted : February 2, 2016
Information provided by (Responsible Party):

Brief Summary:


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.


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.

Condition or disease Intervention/treatment Phase
Chronic Hepatitis B Other: blood draw Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 166 participants
Primary Purpose: Screening
Study Start Date : December 2014
Actual Primary Completion Date : February 2016
Actual Study Completion Date : February 2016

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Immunology analysis: Serum titers of Adenovirus serotypes 5 (Ad5) neutralizing antibodies (nAb) [ Time Frame: Day 1 ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02355951

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Montréal, Canada
Grenoble, France
Lyon, France
Nancy, France
Paris, France
Strasbourg, France
Freiburg, Germany
Hamburg, Germany
Hannover, Germany
Mainz, Germany
München, Germany
Sponsors and Collaborators
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Responsible Party: Transgene Identifier: NCT02355951    
Other Study ID Numbers: TG1050.01
First Posted: February 4, 2015    Key Record Dates
Last Update Posted: February 2, 2016
Last Verified: February 2016
Additional relevant MeSH terms:
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Hepatitis A
Hepatitis B
Hepatitis B, Chronic
Hepatitis, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Blood-Borne Infections
Communicable Diseases
Hepadnaviridae Infections
DNA Virus Infections