NCT04325542

Brief Summary

Chronic Hepatitis B virus (HBV) infection is a neglected disease with devastating consequences, particularly in countries with limited resources for the health sector. Mother-to-child-transmission (MTCT) is responsible for around 50 % of the HBV infections in Tanzania which, in 90 % of the cases, lead to a chronic HBV infection of the child. This infection rate could be reduced with an active immunization directly after birth which is recommended by the World Health Organization (WHO). However, the Tanzanian national immunization programme schedules the first Hepatitis B vaccination for the fourth week after birth which is too late to prevent a perinatal transmission. The aim of the study is to determine the prevalence of Hepatitis B surface antigen (HBsAg) in pregnant women in rural and urban study sites in the region of Mwanza, Tanzania. The blood from the positive -testing mothers should be further examined for viral load, genotype of the virus and for liver transaminases in order to conceive a better understanding of the progression of the infection. Beside the laboratory parameters, risk factors for the infection should be determined with the use of a questionnaire. Furthermore we would like to assess the number of children who were already infected, during the intrauterine period or during birth.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
743

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2014

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
2.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2018

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

November 14, 2019

Completed
4 months until next milestone

First Posted

Study publicly available on registry

March 27, 2020

Completed
7 months until next milestone

Results Posted

Study results publicly available

October 26, 2020

Completed
Last Updated

October 26, 2020

Status Verified

October 1, 2020

Enrollment Period

5 months

First QC Date

November 14, 2019

Results QC Date

September 29, 2020

Last Update Submit

October 23, 2020

Conditions

Keywords

Hepatitis B in pregancyHepatitis B vertical transmissionHepatitis B TanzaniaHepatitis B

Outcome Measures

Primary Outcomes (1)

  • HBsAG Prevalence

    Number of women attending antenatal clinic at the Bugando Medical Center in Mwanza, Tanzania with Hepatitis B surface antigen (HBsAg) rapid test positive result.

    Day 1

Study Arms (1)

HBSAG positive with rapid test

OTHER

Newborns from woman who are positive with HBSAG rapid test got WHO recommended HBV vaccination at birth to avoid HBV transmission

Diagnostic Test: HBSAg (sure screen test)

Interventions

Diagnostic test for Hepatitis B

HBSAG positive with rapid test

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 years or above.
  • Signed consent form

You may not qualify if:

  • Psychiatric disorders

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Bugando Medical Center

Mwanza, Tanzania

Location

MeSH Terms

Conditions

Hepatitis B

Condition Hierarchy (Ancestors)

Blood-Borne InfectionsCommunicable DiseasesInfectionsHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitisLiver DiseasesDigestive System Diseases

Results Point of Contact

Title
Dr Christa Kasang
Organization
Medical Mission Institute

Study Officials

  • Samuel Kalluvya, Prof

    Bugando Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: Hepatitis B prevalence study of woman attending antenatal care
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Coordinator

Study Record Dates

First Submitted

November 14, 2019

First Posted

March 27, 2020

Study Start

October 1, 2014

Primary Completion

March 1, 2015

Study Completion

February 1, 2018

Last Updated

October 26, 2020

Results First Posted

October 26, 2020

Record last verified: 2020-10

Locations