Rifapentine Clinical Trials

TBTC Study 29: Rifapentine During Intensive Phase Tuberculosis (TB) Treatment
Protocol Synopsis The goal of this Phase 2 clinical trial is to evaluate the antimicrobial activity and safety of an experimental intensive phase (first 8 weeks of treatment) tuberculosis treatment regimen in which rifapentine is substituted for rifampin. Primary [more...] Objective - To compare the antimicrobial activity and safety of standard daily regimen comprised of rifampin (approximately 10 mg/kg/dose) + isoniazid + pyrazinamide + ethambutol (RHZE) to that of an experimental regimen comprised of rifapentine (approximately 10 mg/kg/dose) + isoniazid + pyrazinamide + ethambutol (PHZE). Secondary Objectives - To determine and compare for each regimen the time to culture-conversion, using data from 2-, 4-, 6-, and 8-week cultures (10, 20, 30, 40 doses). - To determine and compare for each regimen the proportion of patients with any Grade 3 or 4 adverse reactions - To determine the correlation of the MGIT/BACTEC liquid culture growth index and other mycobacterial and clinical biomarkers with time to culture conversion and treatment failure - To store serum for future assessment of biomarkers of TB treatment response and hypersensitivity to study drugs. - To compare adverse events and 2-month culture conversion rates among HIV-infected patients vs. HIV-uninfected patients Design This will be a prospective, multicenter, open-label clinical study. Adults suspected of having pulmonary tuberculosis who meet eligibility criteria will be randomized to receive either the experimental intensive phase tuberculosis treatment regimen or the standard intensive phase tuberculosis treatment regimen. Randomization will be stratified by presence/absence of cavitation on baseline chest radiograph, and by geographic continent. All doses of study drugs will be given under direct observation and administered 5 days per week. After a subject completes intensive phase therapy, he/she then will be treated with a non-experimental continuation phase tuberculosis treatment regimen. Subjects will have blood drawn for one pharmacokinetic determination of rifapentine concentration towards the end of intensive phase therapy.
Status: Recruiting Start Date: December 2008 Completion Date: September 2010

Study of Daily Rifapentine for Pulmonary Tuberculosis
The goal of this Phase 2 study is to determine the microbiological activity and safety of rifapentine when given as a component of multidrug intensive phase treatment of smear-positive pulmonary TB.
Status: Recruiting Start Date: April 2010 Completion Date: September 2012

Tuberculosis Prevention for HIV Infected Adults
This study compares three different tuberculosis (TB) prevention regimens against the standard regimen of 6 months of isoniazid. It is being conducted in Soweto, South Africa. People who are HIV positive and have a positive tuberculin skin test without signs of active [more...] tuberculosis may join.
Status: Active, not recruiting Start Date: September 2002 Completion Date: June 2009

Pharmacokinetic Issues of Moxifloxacin Plus Rifapentine
The purpose of this study is to determine the pharmacokinetics (how a drug is absorbed, distributed, and eliminated by the body) of moxifloxacin alone versus moxifloxacin given with rifapentine. Researchers believe that understanding how these tuberculosis drugs interact when [more...] given together may help to determine the best drug treatment plan for use in future studies. Volunteers will take moxifloxacin daily by mouth for the first part of the study and then moxifloxacin in combination with rifapentine during the second part of the study. Sixteen healthy men and women will be recruited from Johns Hopkins University School of Medicine to volunteer for this study. They will be required to stay in the inpatient unit twice, each time for 84 hours. Study procedures will include having a tube placed in a vein to draw several blood samples over time. Volunteers will participate in the study for a maximum of 48 days, including screening and follow-up visits.
Status: Active, not recruiting Start Date: June 2007 Completion Date: December 2007

Tolerance, Safety, and Activity of Rifapentine Alone and in Combination Therapy in AIDS Patients With Mycobacterium Avium Complex Bacteremia.
To determine the antimicrobial activity and tolerability of rifapentine alone and in combination therapy in patients with AIDS and disseminated Mycobacterium avium complex (MAC) bacteremia. To determine the pharmacokinetics of rifapentine and its metabolite, 25-desacetyl, alone and in combination [more...] therapy. To determine the pharmacokinetics of azithromycin and clarithromycin (and its 14-OH metabolite) in combination therapy.
Status: Completed Start Date: Completion Date:

TBTC Study 25: Study of the Tolerability of Higher Doses of Rifapentine in the Treatment of Tuberculosis
Randomized, double-blind study of the tolerability of three different doses of rifapentine
Status: Completed Start Date: July 1999 Completion Date: February 2003

TBTC Study 22: Efficacy of Once-Weekly Rifapentine and Isoniazid in Treatment of Tuberculosis
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 [more...] 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.
Status: Completed Start Date: April 1995 Completion Date: March 2001

High Dose Rifapentine Pharmacokinetics, Tolerability and Safety Dosage Rifapentine for Treatment of Tuberculosis
The primary objective of this study is to characterize rifapentine drug levels in patients with TB in relationship to its effectiveness in treating TB and any adverse effects experienced by participants.
Status: Completed Start Date: April 2009 Completion Date: May 2010

TBTC Study 25PK: Intensive Pharmacokinetic Study of Three Doses of Rifapentine and 25-Desacetyl Rifapentine
Primary objective: To compare the pharmacokinetics of rifapentine and 25-desacetyl rifapentine at three different doses: 600 mg, 900 mg, and 1200 mg. Secondary objective: To describe any correlation between pharmacokinetic parameters of three different doses of rifapentine plus a [more...] standard dose of isoniazid and the occurrence of toxicity attributed to anti-tuberculosis treatment.
Status: Completed Start Date: March 2000 Completion Date: May 2001

Clinical trials allow volunteers access to medical treatment options before they are available to the general public. Participants often receive the best healthcare available for their condition.

Risks are a reality, however, and may include more frequent doctor visits, health risks (possibly life-threatening), and/or the treatment being ineffective. Trials are federally regulated with strict guidelines to protect participants.

Rifapentine Clinical Trials Information presented on ClinicalTrialsSearch.org is not intended to be a substitute for qualified medical advice visit or treatment with a real physician. We are not physicians. Always consult with a medical doctor (MD). ClinicalTrialsSearch.org is a website dedicated to listing clinical research studies in human subjects, including those specifically related to Rifapentine. Clinical research trials and medical trials take place in hundreds of cities across the United States. A clinical trial or clinical study is a research project with human volunteer subjects. Clinical drug trials and pharmaceutical clinical trials generally measure the effectiveness of new treatments and drugs. The purpose of the studies is to answer specific human health questions. Clinical trials are a popular way for doctors, government agencies, and private sector companies to find treatments for all kinds of conditions. Clinical trials allow volunteers access to medical treatment options before they are available to the general public. Many times the participants receive treatment for free, and sometimes they are paid for their time. Participants often receive the best healthcare available possible for their condition. Risks are a reality, however, and may include more frequent doctor visits, health risks (possibly life-threatening), and/or the treatment being ineffective. U.S. - based Rifapentine studies are federally regulated with strict guidelines to protect patients.

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