TBTC Study 23C: Pharmacokinetics of Intermittent Rifabutin and Isoniazid With Daily Efavirenz

ClinicalTrials.gov ID: NCT00023413

Public ClinicalTrials.gov record NCT00023413. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

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ClinicalTrials.gov public records Last synced Jul 22, 2026, 9:09 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

TBTC Study 23C: Intensive Pharmacokinetic Study of Intermittent Rifabutin and Isoniazid With Daily Efavirenz in Combination With Two Nucleoside Analogs for Treatment of HIV and Tuberculosis Co-infections

Study identification

NCT ID: NCT00023413
Recruitment status: Completed
Study type: Interventional
Phase: Phase 2
Lead sponsor: Centers for Disease Control and Prevention; Federal
Enrollment: 20 participants

Conditions and interventions

Conditions

Interventions

Rifabutin Drug
Efavirenz Drug

Drug

Eligibility (public fields only)

Age range: 18 Years and older
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Oct 31, 1999
Primary completion: Jan 31, 2004
Completion: Jan 31, 2004
Last update posted: Jun 4, 2012

1999 – 2004

United States locations

U.S. sites: 20
U.S. states: 13
U.S. cities: 18

Facility	City	State	ZIP	Site status
Central Arkansas Veterans Health System	Little Rock	Arkansas	72205	—
LA County/USC Medical Center	Los Angeles	California	90033	—
University of California, San Francisco	San Francisco	California	94110	—
Denver Department of Public Health and Hospitals	Denver	Colorado	80204	—
Washington, D.C. VAMC	Washington D.C.	District of Columbia	20422	—
Chicago VA Medical Center (Lakeside)	Chicago	Illinois	60611	—
Hines VA Medical Center	Hines	Illinois	60141	—
Johns Hopkins University School of Medicine	Baltimore	Maryland	21287-0003	—
Boston Medical Center	Boston	Massachusetts	02118	—
New Jersey Medical School	Newark	New Jersey	07107-3001	—
New York University School of Medicine	New York	New York	10016	—
Columbia University/Presbyterian Medical Center	New York	New York	10032	—
Harlem Hospital Center	New York	New York	10037	—
Carolinas Medical Center	Charlotte	North Carolina	28203	—
Duke University Medical Center	Durham	North Carolina	34222	—
Nashville VA Medical Center	Nashville	Tennessee	37212-2637	—
University of North Texas Health Science Center	Fort Worth	Texas	76107-2699	—
Thomas Street Clinic	Houston	Texas	77009	—
Audi L. Murphy VA Hospital	San Antonio	Texas	78284	—
Seattle King County Health Department	Seattle	Washington	98104	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00023413, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Jun 4, 2012 · Synced Jul 22, 2026

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00023413 live on ClinicalTrials.gov.

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