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Nevirapine Levels and Fluconazole

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00309582
Recruitment Status : Completed
First Posted : April 3, 2006
Last Update Posted : April 3, 2006
Information provided by:
Bamrasnaradura Infectious Diseases Institute

Brief Summary:
Nevirapine (NVP)-based antiretroviral therapy (ART) has been commonly used in many developing countries due to its affordability and feasibility. Nonetheless, the potential drug-drug interaction between NVP and fluconazole (FLU) is a major concern. NVP can induce cytochrome P450 isoenzymes in the liver while FLU inhibit the activity of this enzyme. The recent report has demonstrated that fluconazole significantly raises plasma NVP levels and may cause serious hepatotoxicity. Conversely, NVP does not significantly influence the plasma level of FLU. However, there have not been enough data or any recommendations to adjust NVP dosage for the concurrent use of both drugs in order to avoid the adverse events. A previous study has demonstrated that genetic disposition may play a role in NVP hypersensitivity reactions. There is little data of safety and tolerability for concurrent use of NVP and FLU in Asian populations. We therefore conducted this prospective observational study to compare the trough plasma NVP levels and frequencies of adverse events among antiretroviral HIV-infected patients who did not receive FLU and received FLU in different dosages for cryptococcosis prophylaxis or treatment; and subsequently received NVP-based ART regimens.

Condition or disease
Nevirapine Fluconazole Adverse Event

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Study Type : Observational
Observational Model: Defined Population
Time Perspective: Prospective
Official Title: Plasma Nevirapine Levels and Adverse Events Among HIV-Infected Patients Concurrently Receiving Nevirapine-Based Antiretroviral Therapy and Fluconazole

Resource links provided by the National Library of Medicine

Drug Information available for: Nevirapine

Information from the National Library of Medicine

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Ages Eligible for Study:   15 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. HIV-infected patients >15 years of age,
  2. naïve to antiretroviral therapy,
  3. were initiated with a NVP-based ART regimen,
  4. used NVP 200-mg once-daily lead-in dose, prior to escalation to 200 mg twice daily.

Exclusion Criteria:

  1. creatinine level was higher than 2.0 mg/ml
  2. liver aminotransferase enzyme was higher than five times of upper normal limit
  3. receiving a medication that has drug-drug interactions with NVP or FLU

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 identifier (NCT number): NCT00309582

Sponsors and Collaborators
Bamrasnaradura Infectious Diseases Institute
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Principal Investigator: Weerawat Manosuthi, MD Bamrasnaradura Infectious Diseases Institute
Layout table for additonal information Identifier: NCT00309582    
Other Study ID Numbers: BIR2405
First Posted: April 3, 2006    Key Record Dates
Last Update Posted: April 3, 2006
Last Verified: November 2005