NCT00293228

Brief Summary

The purpose of this study is to study the effect that treatment of dormant tuberculosis infection has on the immunological system. We expect to observe an impact over the production of cytokines by peripheral white blood cells which may be useful to know if treatment has been effective.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Feb 2007

Typical duration for phase_4

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 16, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 17, 2006

Completed
12 months until next milestone

Study Start

First participant enrolled

February 1, 2007

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2008

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2009

Completed
Last Updated

May 26, 2010

Status Verified

May 1, 2010

Enrollment Period

1.1 years

First QC Date

February 16, 2006

Last Update Submit

May 25, 2010

Conditions

Keywords

Latent tuberculosisbiomarkersisoniazidELISPOTPPD positive individuals

Outcome Measures

Primary Outcomes (1)

  • Frequency of Mtb antigen-specific IFNγ-producing T cells measured by ELISPOT assay

    9 months

Secondary Outcomes (1)

  • Gene expression profiling

    9 months

Study Arms (4)

A

EXPERIMENTAL

Recently converted contacts receiving isoniazid (5mg per kg up to 300 mg daily for 6 months) immediately after recruitment.

Drug: Isoniazid

B

ACTIVE COMPARATOR

B. Recently converted contacts receiving isoniazid (5mg per kg up to 300 mg daily for 6 months) three months after recruitment.

Drug: Isoniazid

C

EXPERIMENTAL

C. Remote contacts receiving isoniazid (5mg per kg up to 300 mg daily for 6 months) immediately after recruitment

Drug: Isoniazid

D

ACTIVE COMPARATOR

D. Remote contacts receiving isoniazid (5mg per kg up to 300 mg daily for 6 months) three months after recruitment.

Drug: Isoniazid

Interventions

Isoniazid (5mg per kg up to 300 mg daily for 6 months)

Also known as: treatment of latent tuberculosis infection
ABCD

Eligibility Criteria

Age10 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Informed consent
  • Age 10-45
  • Either sex
  • Resident in study area
  • Documented TST+ve (\>10mm, Mantoux method, 2TU, PPD Statens Serum Institute)
  • Normal chest radiograph
  • HIV negative test

You may not qualify if:

  • Active tuberculosis
  • Previous diagnosis of tuberculosis
  • Treatment for active or latent tuberculosis
  • Contact with TB patients harboring MDR or INH resistant isolates of Mtb
  • Diseases or therapies associated with immunosuppression
  • Diabetes mellitus
  • Abnormal liver enzyme levels.
  • HB below 8gr/dl
  • Pregnancy (ascertained by urinary β-HCG)
  • Allergy or intolerance to isoniazid
  • Peripheral neuropathy
  • Ingestion of drugs interacting with isoniazid

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Instituto Nacional de Salud Pública

Cuernavaca, Morelos, 62508, Mexico

Location

Related Publications (3)

  • Wilkinson KA, Kon OM, Newton SM, Meintjes G, Davidson RN, Pasvol G, Wilkinson RJ. Effect of treatment of latent tuberculosis infection on the T cell response to Mycobacterium tuberculosis antigens. J Infect Dis. 2006 Feb 1;193(3):354-9. doi: 10.1086/499311. Epub 2005 Dec 29.

    PMID: 16388482BACKGROUND
  • DeRiemer K, Garcia-Garcia L, Bobadilla-del-Valle M, Palacios-Martinez M, Martinez-Gamboa A, Small PM, Sifuentes-Osornio J, Ponce-de-Leon A. Does DOTS work in populations with drug-resistant tuberculosis? Lancet. 2005 Apr 2-8;365(9466):1239-45. doi: 10.1016/S0140-6736(05)74812-1.

    PMID: 15811457BACKGROUND
  • Torres M, Garcia-Garcia L, Cruz-Hervert P, Guio H, Carranza C, Ferreyra-Reyes L, Canizales S, Molina S, Ferreira-Guerrero E, Tellez N, Montero-Campos R, Delgado-Sanchez G, Mongua-Rodriguez N, Sifuentes-Osornio J, Ponce-de Leon A, Sada E, Young DB, Wilkinson RJ. Effect of isoniazid on antigen-specific interferon-gamma secretion in latent tuberculosis. Eur Respir J. 2015 Feb;45(2):473-82. doi: 10.1183/09031936.00123314. Epub 2014 Oct 30.

MeSH Terms

Conditions

TuberculosisLatent Tuberculosis

Interventions

Isoniazid

Condition Hierarchy (Ancestors)

Mycobacterium InfectionsActinomycetales InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsLatent Infection

Intervention Hierarchy (Ancestors)

HydrazinesOrganic ChemicalsIsonicotinic AcidsAcids, HeterocyclicHeterocyclic CompoundsPyridinesHeterocyclic Compounds, 1-Ring

Study Officials

  • Lourdes Garcia-Garcia, MD

    Instituto Nacional de Salud Pública

    PRINCIPAL INVESTIGATOR
  • Jose Sifuentes-Osornio, MD

    Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran

    PRINCIPAL INVESTIGATOR
  • Alfredo Ponce-de-Leon, MD

    Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran

    PRINCIPAL INVESTIGATOR
  • Eduardo Sada-Diaz, MD

    Instituto Nacional de Enfermedades Respiratorias

    PRINCIPAL INVESTIGATOR
  • Martha Torres-Rojas, MD

    Instituto Nacional de Enfermedades Respiratorias

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

February 16, 2006

First Posted

February 17, 2006

Study Start

February 1, 2007

Primary Completion

March 1, 2008

Study Completion

June 1, 2009

Last Updated

May 26, 2010

Record last verified: 2010-05

Locations