HIV Clinical Trial - Optimizing Clinical Outcomes in HIV-Infected Adults &

Status Completed

Clinical Trial Summary

This is a study to evaluate Xpert MTB/RIF as the first-line TB diagnostic test in HIV-infected adults and pediatric patients as a means to obtain faster, more accurate TB diagnosis.

Clinical Trial Description

This study will evaluate Xpert Mycobacterium Tuberculosis/Rifampicin (MTB/RIF) as the first-line Tuberculosis (TB) diagnostic test in Human Immunodeficiency Virus (HIV)-infected adults and pediatric patients in peri-urban settings and determine its impact on accurate case detection and treatment initiation in these settings. In addition, the Determine TB-Lipoarabinomannan (LAM) Ag® will be used to model added diagnostic value when used alone or in combination with Xpert MTB/RIF, within the TB diagnostic algorithm for HIV infected patients in Zambia.

A quasi-experimental "before-after" study design will be used at two similar peri-urban district hospitals. Each site will initially implement the Standard of Care (SOC) phase, in which a prospective cohort of HIV-infected adult and pediatric TB suspects will be screened for TB according to the current standard of care in Zambian HIV care clinics. This will be followed by a 4-week "intervention wash-out" period to allow completion of the diagnostic work-up of all patients recruited during the last month of the SOC phase.

The second phase (Xpert MTB/RIF phase) will start immediately following the "intervention wash-out" period. In this phase, a second cohort of HIV-infected adult and pediatric TB suspects will be screened for TB using the Xpert MTB/RIF algorithm. Each phase will last approximately 6 months, or until the target sample size for adults is reached. Mycobacterial culture will be performed during the study to confirm TB diagnosis and determine whether appropriate treatment was given. "Appropriate treatment" means the patient was initiated on ATT within 4 weeks of screening initiation for culture-positive patients or a correct diagnosis of not having TB in culture-negative patients. Culture results will be released from the CIDRZ Lab for patient care as soon as results are available.

During both study phases participants will be asked to submit a urine sample for testing with the Determine TB-LAM Ag® assay. Urine specimens will be collected at the study site and all procedures will be carried out at the CIDRZ Central Laboratory in Lusaka using standard laboratory protocols and quality assurance procedures. Since Determine TB-LAM Ag® has not yet been endorsed by the World Health Organization (WHO) nor approved by the Zambian Ministry of Health for TB diagnosis, results from the Determine TB-LAM Ag® assay will not be used for patient care. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02043080
Study type	Interventional
Source	University of North Carolina, Chapel Hill
Contact
Status	Completed
Phase	N/A
Start date	August 2012
Completion date	April 2017

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Optimizing Clinical Outcomes in HIV-Infected Adults & Children

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms