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1. To determine risk factors for abnormal pharmacokinetic parameters for isoniazid and rifabutin.
2. To evaluate the correlation between pharmacokinetic parameters of isoniazid and rifabutin and the occurrence of toxicity attributed to antituberculous therapy.
3. To evaluate the correlation between pharmacokinetic parameters of isoniazid and rifabutin and the efficacy of TB therapy.
4. To define and correlate phenotypic INH acetylator status with the results of genotypic acetylator data obtained in the parent trial.
This study will seek to enroll every eligible patient enrolled in TBTC Study 23. Consenting patients will be asked to undergo measurements of isoniazid (if receiving), rifabutin and 25-OH desacetyl rifabutin levels at a time point in the study when steady state rifabutin levels are expected to have been achieved (at least two weeks following the start of rifabutin).
Allocation: Non-Randomized, Control: Historical Control, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Central Arkansas Veterans Health System
Centers for Disease Control and Prevention
Published on BioPortfolio: 2014-08-27T03:56:39-0400
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 ...
The aim of this trial is to study the efavirenz-rifabutin interaction. Thus, this trial will enroll patients with HIV and tuberculosis co-infections who are receiving a rifabutin-based re...
Primary objective: To determine the rate of confirmed treatment failure and relapse with an intermittent rifabutin-based regimen for the treatment of isoniazid and rifamycin-susceptible H...
Assess the mycobactericidal activity of PA-824 (given at 200 mg daily) when added to first-line TB treatment (isoniazid, pyrazinamide, and a rifamycin antibiotic) over 12 weeks of treatme...
Treatment of adults with chronic Mycobacterium avium-intracellulare complex lung infections who have failed or are intolerant of rifampin. Rifabutin may be a reasonable alternative agent ...
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Tuberculosis resistant to chemotherapy with two or more ANTITUBERCULAR AGENTS, including at least ISONIAZID and RIFAMPICIN. The problem of resistance is particularly troublesome in tuberculous OPPORTUNISTIC INFECTIONS associated with HIV INFECTIONS. It requires the use of second line drugs which are more toxic than the first line regimens. TB with isolates that have developed further resistance to at least three of the six classes of second line drugs is defined as EXTENSIVELY DRUG-RESISTANT TUBERCULOSIS.
A broad-spectrum antibiotic that is being used as prophylaxis against disseminated Mycobacterium avium complex infection in HIV-positive patients.
Inflammation of brain parenchymal tissue as a result of viral infection. Encephalitis may occur as primary or secondary manifestation of TOGAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; BUNYAVIRIDAE INFECTIONS; PICORNAVIRIDAE INFECTIONS; PARAMYXOVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RETROVIRIDAE INFECTIONS; and ARENAVIRIDAE INFECTIONS.
Viral infections of the leptomeninges and subarachnoid space. TOGAVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; RUBELLA; BUNYAVIRIDAE INFECTIONS; ORBIVIRUS infections; PICORNAVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RHABDOVIRIDAE INFECTIONS; ARENAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; JC VIRUS infections; and RETROVIRIDAE INFECTIONS may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, PHOTOPHOBIA, and signs of meningeal irritation. (From Joynt, Clinical Neurology, 1996, Ch26, pp1-3)
Infections with viruses of the family PARAMYXOVIRIDAE. This includes MORBILLIVIRUS INFECTIONS; RESPIROVIRUS INFECTIONS; PNEUMOVIRUS INFECTIONS; HENIPAVIRUS INFECTIONS; AVULAVIRUS INFECTIONS; and RUBULAVIRUS INFECTIONS.
Tuberculosis (TB) is an infectious disease caused by bacteria belonging to the Mycobacterium tuberculosis complex. Over nine million new cases of TB, and nearly two million deaths from TB, are estimated to occur around the world every year, and new inf...