Epidemiological Study In Tuberculosis-Endemic Urban Area in Senegal

NCT ID: NCT03767946

Last Updated: 2022-07-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-07-27

Study Completion Date

2022-07-27

Brief Summary

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A cross-sectional childhood M. tuberculosis infection survey of age-specific rates (defined by positivity to the test QuantiFERON-TB Gold Plus) will be conducted in Senegal to collect information on the local TB endemic to inform site selection, sample size, and recruitment strategies for a future efficacy trial of vaccine candidate MTBVAC in young children.

Detailed Description

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MTBVAC is a new TB vaccine candidate based on an attenuated clinical isolate of M. tuberculosis. The clinical development consortium of this EDCTP program is preparing for future years an MTBVAC efficacy trial by setting up a network of three African sites in South Africa, Senegal and Madagascar. Each site has established an operational clinical research infrastructure. As a first step, Senegal site needs to collect crucial epidemiological data on TB in children, to allow a rapid transition to a phase 3 trial in infants.

The primary objective is to estimate the prevalence of TB infection by the QuantiFERON-TB Gold Plus technique in 500 children splined in 1-year, 2-year, 5-year, and 12-year-old age groups living in the study area (Saint Louis, Senegal).

Secondary objectives are:

* To study the socio-demographic characteristics, the vaccination history of each subject and the possible tuberculous contacts he has.
* To map selected populations (from GPS residence data) according to the status (infected or uninfected) of each subject.
* To ensure the orientation of children found positive by the QuantiFERON-TB Gold Plus test for care and follow-up related to the TB diagnosis and treatment at one of the Health Centers (THC) located in the study areas.
* To estimate the number of tuberculosis cases detected in children aged up to 12 years and resident in the study area from THC registries and data from the National Tuberculosis Control Plan (PNB).

Conditions

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Tuberculosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Group 1

Children both genders according to age:

\*1-year old children (12 months -1/+4 months); n=125 at the date of recruitment.

Quantiferon Gold Plus Test

Intervention Type DIAGNOSTIC_TEST

Small volume of whole blood incubated with specific TB antigen and then dosage of Interferon gamma production.

Group 2

Children both genders according to age:

\*2-year-old children (24 months -1/+4 months); n=125 at the date of recruitment.

Quantiferon Gold Plus Test

Intervention Type DIAGNOSTIC_TEST

Small volume of whole blood incubated with specific TB antigen and then dosage of Interferon gamma production.

Group 3

Children both genders according to age:

\*5-year old children (60 months +/- 6 months); n=125 at the date of recruitment.

Quantiferon Gold Plus Test

Intervention Type DIAGNOSTIC_TEST

Small volume of whole blood incubated with specific TB antigen and then dosage of Interferon gamma production.

Group 4

Children both genders according to age:

\*12-years old children (12 years old +/- 6 months); n=125 at the date of recruitment.

Quantiferon Gold Plus Test

Intervention Type DIAGNOSTIC_TEST

Small volume of whole blood incubated with specific TB antigen and then dosage of Interferon gamma production.

Interventions

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Quantiferon Gold Plus Test

Small volume of whole blood incubated with specific TB antigen and then dosage of Interferon gamma production.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Children resident in the study area (St Louis City)
* Obtaining written consent from one of the parents / guardians.
* Children meeting one the following age criterion:

* 1-year old child (12 months -1/+4 months);
* 2-year-old child (24 months -1/+4 months);
* 5-year old child (60 months +/-6 months);
* 12-year old child (12 years old +/-6 months);

Exclusion Criteria

* Child resident outside the study area.
* Participation refusal by one of the parents / guardians.
* Objection of the child belonging to the 12-year old group.
* Child with a known chronic pathology (severe asthma, epilepsy, type 1 diabetes, severe immunosuppression ...)
* Child considered by the Principal Investigator as medically unfit to participate in the study.
Minimum Eligible Age

11 Months

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Biofabri, S.L

INDUSTRY

Sponsor Role collaborator

TuBerculosis Vaccine Initiative

OTHER

Sponsor Role collaborator

Universidad de Zaragoza

OTHER

Sponsor Role collaborator

University of Cape Town

OTHER

Sponsor Role collaborator

Institut Pasteur de Madagascar

OTHER

Sponsor Role collaborator

Biomedical Research Center EPLS

OTHER

Sponsor Role lead

Responsible Party

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Gilles Riveau, PharmD, PhD

CEO

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Amadou T LY

Role: PRINCIPAL_INVESTIGATOR

Biomedical Research Center EPLS

Locations

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Biomedical Research Center EPLS

Saint-Louis, , France

Site Status

Countries

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France

References

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Arbues A, Aguilo JI, Gonzalo-Asensio J, Marinova D, Uranga S, Puentes E, Fernandez C, Parra A, Cardona PJ, Vilaplana C, Ausina V, Williams A, Clark S, Malaga W, Guilhot C, Gicquel B, Martin C. Construction, characterization and preclinical evaluation of MTBVAC, the first live-attenuated M. tuberculosis-based vaccine to enter clinical trials. Vaccine. 2013 Oct 1;31(42):4867-73. doi: 10.1016/j.vaccine.2013.07.051. Epub 2013 Aug 17.

Reference Type BACKGROUND
PMID: 23965219 (View on PubMed)

Marinova D, Gonzalo-Asensio J, Aguilo N, Martin C. MTBVAC from discovery to clinical trials in tuberculosis-endemic countries. Expert Rev Vaccines. 2017 Jun;16(6):565-576. doi: 10.1080/14760584.2017.1324303. Epub 2017 May 12.

Reference Type BACKGROUND
PMID: 28447476 (View on PubMed)

Cuevas LE, Browning R, Bossuyt P, Casenghi M, Cotton MF, Cruz AT, Dodd LE, Drobniewski F, Gale M, Graham SM, Grzemska M, Heinrich N, Hesseling AC, Huebner R, Jean-Philippe P, Kabra SK, Kampmann B, Lewinsohn D, Li M, Lienhardt C, Mandalakas AM, Marais BJ, Menzies HJ, Montepiedra G, Mwansambo C, Oberhelman R, Palumbo P, Russek-Cohen E, Shapiro DE, Smith B, Soto-Castellares G, Starke JR, Swaminathan S, Wingfield C, Worrell C. Evaluation of tuberculosis diagnostics in children: 2. Methodological issues for conducting and reporting research evaluations of tuberculosis diagnostics for intrathoracic tuberculosis in children. Consensus from an expert panel. J Infect Dis. 2012 May 15;205 Suppl 2(Suppl 2):S209-15. doi: 10.1093/infdis/jir879. Epub 2012 Apr 3.

Reference Type BACKGROUND
PMID: 22476719 (View on PubMed)

Nemes E, Rozot V, Geldenhuys H, Bilek N, Mabwe S, Abrahams D, Makhethe L, Erasmus M, Keyser A, Toefy A, Cloete Y, Ratangee F, Blauenfeldt T, Ruhwald M, Walzl G, Smith B, Loxton AG, Hanekom WA, Andrews JR, Lempicki MD, Ellis R, Ginsberg AM, Hatherill M, Scriba TJ; C-040-404 Study Team and the Adolescent Cohort Study Team. Optimization and Interpretation of Serial QuantiFERON Testing to Measure Acquisition of Mycobacterium tuberculosis Infection. Am J Respir Crit Care Med. 2017 Sep 1;196(5):638-648. doi: 10.1164/rccm.201704-0817OC.

Reference Type RESULT
PMID: 28737960 (View on PubMed)

Other Identifiers

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RIA2016V-1637

Identifier Type: -

Identifier Source: org_study_id

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