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Hepatitis ANCT02112890

Study to Assess Seroprevalence of Hepatitis A, Hepatitis B and Bordetella Pertussis in Mexico

An observational study of Hepatitis A and Viral Hepatitis Vaccines, run by GlaxoSmithKline at 1 site in Mexico.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will assess the seroprevalence of hepatitis A virus (HAV), hepatitis B virus (HBV) and Bordetella pertussis (B. pertussis) in adolescents and young adults in Mexico. Read more about this study

Who is it for?
Ages 10 to 25 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis A, Viral Hepatitis Vaccines
What is being tested?
Data collection
How many people
1,603 participants
Where
1 siteMexico
Study dates
10 Dec 2014to 2 May 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 10 to 25 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Study population: Subjects constituting adolescents and young adults (≥10 - ≤25 years of age) from the total population that participated in the ENSANUT 2012 in Mexico.

Who may be able to join

  • Written informed consent for the ENSANUT 2012 was obtained according to local regulations from the subject/ from the parent(s)/ legally acceptable representative (LAR) of the subject.
  • A male or female between and including 10 and 25 years of age, who previously participated in the ENSANUT 2012 in Mexico.

Who cannot join

  • Information required for the study is not available or incomplete.
  • Inadequate or insufficient serum sample to perform the laboratory tests for this study.
  • Serum sample is wrongly identified.

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • GSK Investigational Site

    Cuernavaca, Morelos

Other trials in Mexico

About this study

Official title: Seroprevalence of Hepatitis A, Hepatitis B and Bordetella Pertussis in Mexico

This study will assess the seroprevalence of hepatitis A virus (HAV), hepatitis B virus (HBV) and Bordetella pertussis (B. pertussis) in adolescents and young adults in Mexico.

Read the detailed description

A random sample of subjects constituting adolescents and young adults (≥10 - ≤25 years of age) will be selected from the total population that participated in the Encuesta Nacional de Salud y Nutrición (ENSANUT) 2012 in Mexico.

Data (through structured questionnaires and interviews) and stored serum samples of the selected subjects obtained from the ENSANUT 2012 will be used in this study. A subset database will be designed by the National Institute of Public Health (NIPH) for the purpose of this study. Extracted data and laboratory results of the selected subjects will be captured in this database.

Being tested
Data collection
Keywords
Mexico, Adolescents, Hepatitis, Seroprevalence, Pertussis, Young adults
Medical subject headings
Hepatitis A, Hepatitis, Whooping Cough

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Data collectionOther

    Data of the selected subjects (through structured questionnaires and interviews) and stored serum samples obtained from the ENSANUT 2012. A subset database will be designed by the NIPH for the purpose of this study. Extracted data and laboratory results of the selected subjects will be captured in the study database.

Study groups in NCT02112890
Study groupRoleWhat they receive
Study GroupA random sample of subjects constituting adolescents and young adults (≥10 - ≤25 years of age) that participated in the ENSANUT 2012 in Mexico.
Receives: Other: Data collection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Assessment of seropositivity status (defined as the percentage of subjects with antibody titres positive) for anti-HAV

    Measured: During the study (approximately 12 months)

  2. Assessment of seropositivity status (defined as the percentage of subjects with antibody titres positive) for anti-HBV (Hepatitis B core antibody [anti-HBc], Hepatitis B surface antigen [HBsAg]) and Hepatitis B surface antibody (anti-HBs)

    Measured: During the study (approximately 12 months)

  3. Assessment of seropositivity status (defined as the percentage of subjects with antibody titres positive) for Pertussis antibodies

    Measured: During the study (approximately 12 months)

Secondary outcomes (1)
  1. Assesment of the difference in HAV, HBV and B. pertussis seropositivity rates among - Socioeconomic strata, - Regions, - Age groups, - Genders, - Risk groups, - Vaccination status for B. pertussis (if available)

    Measured: During the study (approximately 12 months)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Apr 2014 (estimated)
  2. Study start10 Dec 2014
  3. Primary completion2 May 2016
  4. Study completion2 May 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
1,603 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02112890
Sponsor's protocol ID
201076
Status last verified
Jun 2019
First submitted
10 Apr 2014
Last updated
27 Jun 2019
Results posted
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Hepatitis A and Viral Hepatitis Vaccines, run by GlaxoSmithKline at 1 site in Mexico.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Jun 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Mexico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Assessment of seropositivity status (defined as the percentage of subjects with antibody titres positive) for anti-HAV (time frame: During the study (approximately 12 months)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jun 2019.

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