TBTC Study 23: Treatment of HIV-Related Tuberculosis Using a Rifabutin-Based Regimen

September 1, 2005 updated by: Centers for Disease Control and Prevention

Primary objective:

To determine the rate of confirmed treatment failure and relapse with an intermittent rifabutin-based regimen for the treatment of isoniazid and rifamycin-susceptible HIV-related tuberculosis (TB).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
215

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, Canada V5Z 4R4
        • University of British Columbia
    • Manitoba
      • Winnipeg, Manitoba, Canada, CANADA R3A 1R8
        • University of Manitoba
    • Quebec
      • Montreal, Quebec, Canada, H2X 2P4Pq Canada
        • Montreal Chest Institute McGill University
  • United States
    • Arkansas
      • Little Rock, Arkansas, United States, 72205
        • Central Arkansas Veterans Health System
    • California
      • Los Angeles, California, United States, 90033
        • LA County/USC Medical Center
      • San Francisco, California, United States, 94110
        • University of California, San Francisco
    • Colorado
      • Denver, Colorado, United States, 80204
        • Denver Department of Public Health and Hospitals
    • District of Columbia
      • Washington, District of Columbia, United States, 20422
        • Washington, D.C. VAMC
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Chicago VA Medical Center (Lakeside)
      • Hines, Illinois, United States, 60141
        • Hines VA Medical Center
    • Maryland
      • Baltimore, Maryland, United States, 21287-0003
        • Johns Hopkins University School Of Medicine
    • Massachusetts
      • Boston, Massachusetts, United States, 02118
        • Boston Medical Center
    • New Jersey
      • Newark, New Jersey, United States, 07107-3001
        • New Jersey Medical School
    • New York
      • New York, New York, United States, 10016
        • New York University School of Medicine
      • New York, New York, United States, 10037
        • Harlem Hospital Center
      • New York, New York, United States, 10032
        • Columbia University/Presbyterian Medical Center
    • North Carolina
      • Charlotte, North Carolina, United States, 28203
        • Carolinas Medical Center
      • Durham, North Carolina, United States, 34222
        • Duke University Medical Center
    • Tennessee
      • Nashville, Tennessee, United States, 37212-2637
        • Nashville VA Medical Center
    • Texas
      • Fort Worth, Texas, United States, 76107-2699
        • University of North Texas Health Science Center
      • Houston, Texas, United States, 77009
        • Thomas Street Clinic
      • San Antonio, Texas, United States, 78284
        • Audi L. Murphy VA Hospital
    • Washington
      • Seattle, Washington, United States, 98104
        • Seattle King County Health Department

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

  • Clinical diagnosis of pulmonary &/or extrapulmonary TB confirmed by a positive culture and susceptibility to rifampin. Patients having isoniazid or pyrazinamide (PZA)-resistant isolates are eligible to continue in the study on a modified regimen
  • Evidence of HIV infection confirmed by a positive serologic test (ELISA and Western Blot).
  • Absolute neutrophil count >500/mm3 (use of colony stimulating factors, filgrastim, or sargramostim is allowed)
  • > 18 years of age
  • Willingness to practice effective contraception if applicable
  • Signed informed consent

Exclusion Criteria

  • Pregnancy or breastfeeding
  • AST > 10 times the upper limit of normal
  • Bilirubin > 3.0 times the upper limit of normal
  • Creatinine > 3.0 times the upper limit of normal
  • Intolerance to any of the study drugs except isoniazid or pyrazinamide
  • Concomitant disorder that is contraindication to the use of the study drugs
  • More than 28 days of treatment for active tuberculosis within the 6 months prior to this course of therapy
  • Bone/joint tuberculosis or silicotuberculosis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Rate of confirmed treatment failure and relapse

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Safety and tolerability
Response of HIV RNA to TB treatment
Paradoxical reactions

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Centers for Disease Control and Prevention

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
US Department of Veterans Affairs

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: William Burman, MD, Denver Health and Hospitals

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 1999

Study Completion

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2003

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 6, 2001

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 8, 2001

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 10, 2001

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 5, 2005

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 1, 2005

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2005

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CDC-NCHSTP-2174
  • TBTC STUDY 23

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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