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TBTC Study 23B:Intensive PK of the Nelfinavir Rifabutin Interaction in Patients With HIV-TB

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ClinicalTrials.gov Identifier: NCT00023400
Recruitment Status : Completed
First Posted : September 10, 2001
Last Update Posted : September 5, 2005
Sponsor:
Collaborator:
VA Office of Research and Development
Information provided by:
Centers for Disease Control and Prevention

Study Description
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Brief Summary:

Primary Objective:

To define the impact of nelfinavir (given at 1250mg bid as part of a combination antiretroviral regimen) on peak levels and area under the curve for rifabutin and the rifabutin metabolite, 25-O-desacetyl rifabutin when rifabutin is given at 300 mg bi-weekly as part of tuberculosis chemotherapy.

Secondary Objectives:

To compare the pharmacokinetics of nelfinavir given twice daily at 1250 mg bid with twice-weekly isoniazid and rifabutin to the pharmacokinetics of nelfinavir 1250 mg twice-daily in historical HIV-infected patients not receiving isoniazid and rifabutin.

To evaluate the correlation between pharmacokinetic parameters of rifabutin and 25-O-desacetyl rifabutin and the occurrence of toxicity attributed to rifabutin in patients with HIV-related tuberculosis.

To define detailed pharmacokinetics of isoniazid given at 15mg/kg or 900 mg in patients with HIV-related tuberculosis.

To attempt to derive optimal sampling times for nelfinavir and rifabutin pharmacokinetic studies.


Condition or disease Intervention/treatment Phase
HIV Infections Tuberculosis Drug: Nelfinavir Drug: Rifabutin Phase 4

Study Design
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Study Type : Interventional  (Clinical Trial)
Enrollment : 20 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: TBTC Study 23B:Intensive Pharmacokinetics of the Nelfinavir Rifabutin Interaction in Patients With HIV-Related Tuberculosis Treated With a Rifabutin-Based Regimen
Study Start Date : February 2000
Study Completion Date : February 2002

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Arms and Interventions
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Outcome Measures
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Primary Outcome Measures :
  1. Impact of nelfinavir (given at 1250mg bid as part of a combination antiretroviral regimen) on area under the curve for rifabutin and 25-O-desacetyl rifabutin when rifabutin is given 300 mg bi-weekly as part of tuberculosis chemotherapy.

Secondary Outcome Measures :
  1. To compare the pharmacokinetics of nelfinavir given twice daily at 1250 mg bid with twice-weekly isoniazid and rifabutin to the pharmacokinetics of nelfinavir 1250 mg twice-daily in historical HIV-infected patients not receiving isoniazid and rifabutin.

Eligibility Criteria
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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria
  • Patients with HIV-related tuberculosis
Contacts and Locations
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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): NCT00023400


  Show 23 Study Locations
Sponsors and Collaborators
Centers for Disease Control and Prevention
VA Office of Research and Development
Investigators
Study Chair: Debra Benator, MD Washington, D.C. VAMC
More Information
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Additional Information:
(Click here for more information about the Tuberculosis Trials Consortium(TBTC)  This link exits the ClinicalTrials.gov site

ClinicalTrials.gov Identifier: NCT00023400     History of Changes
Other Study ID Numbers: CDC-NCHSTP-2587
23B
First Posted: September 10, 2001    Key Record Dates
Last Update Posted: September 5, 2005
Last Verified: September 2005

Keywords provided by Centers for Disease Control and Prevention:
tuberculosis
TB

Additional relevant MeSH terms:
HIV Infections
Tuberculosis
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Mycobacterium Infections
Actinomycetales Infections
Gram-Positive Bacterial Infections
Bacterial Infections
 Nelfinavir
Rifabutin
HIV Protease Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Anti-Bacterial Agents
Antibiotics, Antitubercular
Antitubercular Agents