Skip to content

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

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

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00023361
Enrollment
215
Registered
2001-09-10
Start date
1999-02-28
Completion date
2003-02-28
Last updated
2005-09-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections, Tuberculosis

Keywords

tuberculosis, TB

Brief summary

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).

Interventions

DRUGRifabutin

Sponsors

US Department of Veterans Affairs
CollaboratorFED
Centers for Disease Control and Prevention
Lead SponsorFED

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frame
Rate of confirmed treatment failure and relapse

Secondary

MeasureTime frame
Safety and tolerability
Response of HIV RNA to TB treatment
Paradoxical reactions

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026