ClinicalTrials.Veeva

Menu

TBTC Study 22: Efficacy of Once-Weekly Rifapentine and Isoniazid in Treatment of Tuberculosis

Centers for Disease Control and Prevention (CDC) logo

Centers for Disease Control and Prevention (CDC)

Status and phase

Completed
Phase 3

Conditions

Pulmonary Tuberculosis

Treatments

Drug: Rifapentine
Drug: Isoniazid

Study type

Interventional

Funder types

Other U.S. Federal agency

Identifiers

NCT00023335
TBTC Study 22
CDC-NCHSTP-1427

Details and patient eligibility

About

Primary Objective: To compare, at the completion of the follow-up phase, the clinical and bacteriologic relapse rates associated with the two study regimens.

Secondary Objectives:

To compare the clinical and bacteriologic failure rates of the two study regimens at the completion of the study phase therapy.

To compare the clinical and bacteriologic response rates for the two study regimens among patients who began study phase therapy with signs and symptoms of tuberculosis or cultures positive for M. tuberculosis.

To compare the toxicity associated with the two study regimens by comparing discontinuation rates due to adverse events and occurrence rates of signs and symptoms associated with adverse events during study phase therapy.

To compare mortality rates of the two study regimens. To compare the rates of completion of therapy within 22 weeks for the two study regimens.

To compare the rate of development of drug-resistant tuberculosis in the two study regimens among study patients classified as treatment failures or relapses.

To compare all of the above performance characteristics for the two study regimens in a small subset of HIV seropositive patients.

To compare attitudes and beliefs about participation in this study between patients who complete study therapy and those who fail to complete study therapy.

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

  • Culture-positive, drug-susceptible pulmonary tuberculosis

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

Trial contacts and locations

23

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems