Investigation of a Novel Approach to Improve Treatment Success Rates for Tuberculosis Patients in Senegal

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: NCT00412009
Recruitment Status : Completed
First Posted : December 15, 2006
Last Update Posted : December 15, 2006
Information provided by:
Institut de Recherche pour le Developpement

Brief Summary:

Tuberculosis (TB) patients who receive inadequate treatment or do not complete therapy are more likely to remain infectious, thus contributing to the continuous spread of TB infection in communities. Despite the widespread use of Directly Observed Therapy, defaulters remain an important problem in TB control programmes. In Sénégal, defaulters rate reach 30%, which is hampering dramatically the effectiveness of control. New strategies to deliver treatment to TB patients and ensure proper adherence that are adapted to the local situations are urgently needed.


The overall objective of the project is to improve tuberculosis treatment success rates in Sénégal. The specific objectives are:

  1. to assess the current situation of tuberculosis (TB) in Sénégal
  2. to identify the determinants of cure,
  3. to develop measures to improve patient’s compliance with the treatment that are adapted to the local situation, acceptable, affordable and sustainable
  4. to evaluate the impact of these measures on TB control.


The proposed research seeks to develop and test innovative methods to improve cure rates in TB patients. It will explore the factors of success of TB treatment using inter-disciplinary approach, integrating social sciences and economic analyses into TB research. The project is composed of 3 comprehensive phases:

  • Phase 1: baseline assessment of the TB situation.
  • Phase 2: anthropological study, investigating various domains contributing to patients cure using a range of qualitative research methods. At the end of this investigation, it is expected that determinants of care will be clearly identified. On this basis, suitable methods for improving patients’ adherence to treatment will be tailored and developed.
  • Phase 3: these methods will be tested and compared using a cluster randomised controlled trial design, in populations served by defined health centres. Their efficacy will be measured in terms of improvement of the classical TB control programme indicators (cure rate, defaulter rate, failure rate, death rates). The methods will also be evaluated on their acceptability by the TB patients and the communities and on their feasibility (duration : 24 months).

Expected results:

Methods to improve patients’ adherence to treatment that are affordable, acceptable and sustainable will be developed and tested according to qualitative and quantitative criteria.

Condition or disease Intervention/treatment Phase
Tuberculosis Procedure: Comprehensive package of activities Phase 4

  Show Detailed Description

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 1500 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Investigation of a Novel Approach to Improve Adherence to Treatment and Treatment Success Rates for Tuberculosis Patients in Senegal
Study Start Date : May 2003
Estimated Study Completion Date : January 2005

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Tuberculosis
U.S. FDA Resources

Primary Outcome Measures :
  1. TB treatment success rate (cure + completed treatment)
  2. Treatment defaulting rates

Secondary Outcome Measures :
  1. treatment failure rate
  2. death rate

Information from the National Library of Medicine

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Ages Eligible for Study:   15 Years to 65 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • newly diagnosed sputum-smear positive pulmonary TB (at least two positive specimens), aged 15 years or more, and living in the district served by the District Health Centre.

Exclusion Criteria:

  • Smear-negative tuberculosis cases
  • extra-pulmonary tuberculosis cases
  • TB re-treatment cases

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): NCT00412009

Programme National de Lutte Anti-tuberculeuse
Dakar, Senegal
Sponsors and Collaborators
Institut de Recherche pour le Developpement
Principal Investigator: Moustapha Ndir, MD Programme de Lutte anti-tuberculeuse, Dakar, Senegal
Principal Investigator: Christian Lienhardt, MD Institut de Recherche pour le Developpement, Paris, France

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00412009     History of Changes
Other Study ID Numbers: PAL+ 2671
First Posted: December 15, 2006    Key Record Dates
Last Update Posted: December 15, 2006
Last Verified: December 2006

Keywords provided by Institut de Recherche pour le Developpement:

Additional relevant MeSH terms:
Mycobacterium Infections
Actinomycetales Infections
Gram-Positive Bacterial Infections
Bacterial Infections