TBTC Study 25PK: Intensive Pharmacokinetic Study of Three Doses of Rifapentine and 25-Desacetyl Rifapentine

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ClinicalTrials.gov Identifier: NCT00023387

Recruitment Status : Completed

First Posted : September 10, 2001

Last Update Posted : September 13, 2005

Sponsor:

Collaborator:

VA Office of Research and Development

Information provided by:

Centers for Disease Control and Prevention

Study Description

Brief Summary:

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 standard dose of isoniazid and the occurrence of toxicity attributed to anti-tuberculosis treatment.

Condition or disease	Intervention/treatment	Phase
Tuberculosis	Drug: Rifapentine Drug: 25-desacetyl Rifapentine Drug: Isoniazid	Not Applicable

Detailed Description:

We will enroll 24-36 patients, 8-12 at each dose of 600, 900 and 1200 mg rifapentine Admissions for pharmacokinetic studies will take place during the continuation phase of tuberculosis therapy. Patients participating in a double-blinded trial of the tolerability and safety of higher doses of rifapentine during continuation phase therapy and consenting to participate in the pharmacokinetic study may be admitted to a Clinical Research Center (CRC) to allow for frequent blood sampling over a 24-hour period. Otherwise, patients will be evaluated in the clinic.

Study Design


Study Type :	Interventional (Clinical Trial)
Enrollment :	36 participants
Allocation:	Randomized
Intervention Model:	Parallel Assignment
Masking:	Double
Primary Purpose:	Treatment
Official Title:	Intensive Pharmacokinetic Study of Three Doses of Rifapentine (600, 900 and 1200mg) During Continuation Phase Therapy of Tuberculosis in HIV-Negative Adults
Study Start Date :	March 2000
Study Completion Date :	May 2001

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Tuberculosis

Drug Information available for: Rifapentine

Genetic and Rare Diseases Information Center resources: Tuberculosis

U.S. FDA Resources

Arms and Interventions

Outcome Measures

Primary Outcome Measures :

Compare the pharmacokinetics of rifapentine and 25-desacetyl rifapentine at three difference doses: 600 mg, 900 mg, and 1200 mg

Secondary Outcome Measures :

Describe any correlation between pharmacokinetic parameters of three different doses of rifapentine plus a standard dose of isoniazid and the occurrence of toxicity attributed to anti-tuberculosis treatment.

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:	18 Years and older (Adult, Senior)
Sexes Eligible for Study:	All
Accepts Healthy Volunteers:	No

Criteria

Inclusion:

Patients enrolled in TBTC Study 25 Informed consent

Exclusion:

Severe anemia (Hct <25%) Any severe adverse event related to study drugs in TBTC Study 25

Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00023387

Show 23 Study Locations

Sponsors and Collaborators

Centers for Disease Control and Prevention

VA Office of Research and Development

Investigators


Principal Investigator:	Marc Weiner, MD	Audie L. Murphy VA Medical Center, San Antonio TX

More Information

Additional Information:

(Click here for more information about the Tuberculosis Trials Consortium(TBTC) This link exits the ClinicalTrials.gov site

Publications:

Weiner M, Bock N, Peloquin CA, Burman WJ, Khan A, Vernon A, Zhao Z, Weis S, Sterling TR, Hayden K, Goldberg S; Tuberculosis Trials Consortium. Pharmacokinetics of rifapentine at 600, 900, and 1,200 mg during once-weekly tuberculosis therapy. Am J Respir Crit Care Med. 2004 Jun 1;169(11):1191-7. Epub 2004 Feb 12.


ClinicalTrials.gov Identifier:	NCT00023387 History of Changes
Other Study ID Numbers:	CDC-NCHSTP-2558 TBTC Study 25PK
First Posted:	September 10, 2001 Key Record Dates
Last Update Posted:	September 13, 2005
Last Verified:	September 2005

Additional relevant MeSH terms:


Tuberculosis Mycobacterium Infections Actinomycetales Infections Gram-Positive Bacterial Infections Bacterial Infections Isoniazid Rifapentine Rifampin Antitubercular Agents Anti-Bacterial Agents Anti-Infective Agents Fatty Acid Synthesis Inhibitors Hypolipidemic Agents	Antimetabolites Molecular Mechanisms of Pharmacological Action Lipid Regulating Agents Antibiotics, Antitubercular Leprostatic Agents Nucleic Acid Synthesis Inhibitors Enzyme Inhibitors Cytochrome P-450 CYP2B6 Inducers Cytochrome P-450 Enzyme Inducers Cytochrome P-450 CYP2C8 Inducers Cytochrome P-450 CYP2C19 Inducers Cytochrome P-450 CYP2C9 Inducers Cytochrome P-450 CYP3A Inducers

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