Safety and Tolerance of Zidovudine With Probenecid and the Effect of Probenecid on Zidovudine Pharmacokinetics Over Four Weeks
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Purpose
To evaluate the interaction of probenecid with zidovudine (AZT). Because AZT is eliminated quickly from the body, it must be taken frequently. A previous study showed that probenecid slowed the elimination of AZT without side effects, but that study lasted only 5 days. This study is to see whether this effect continues for 1 month and whether the continuation of probenecid and AZT is free of side effects over 1 month.
| Condition | Intervention |
|---|---|
|
HIV Infections |
Drug: Probenecid Drug: Zidovudine |
| Study Type: | Interventional |
| Study Design: | Endpoint Classification: Pharmacokinetics Study Masking: Open Label Primary Purpose: Treatment |
| Official Title: | Safety and Tolerance of Zidovudine With Probenecid and the Effect of Probenecid on Zidovudine Pharmacokinetics Over Four Weeks |
| Estimated Enrollment: | 16 |
| Study Completion Date: | July 1989 |
Because AZT is eliminated quickly from the body, it must be taken frequently. A previous study showed that probenecid slowed the elimination of AZT without side effects, but that study lasted only 5 days. This study is to see whether this effect continues for 1 month and whether the continuation of probenecid and AZT is free of side effects over 1 month.
Patients are hospitalized overnight on three separate occasions. On the first admission, AZT is administered every 4 hours. On the second day, 15 blood samples are taken to determine how fast the AZT enters and is removed from the bloodstream (pharmacokinetics). On the second day, after all the blood specimens have been collected, patient starts taking probenecid by mouth every 8 hours, and is discharged from the research unit. The AZT dose is then taken every 8 hours. One week later and again 3 weeks after that, patient is readmitted overnight and the blood sampling to measure AZT levels is repeated. AMENDED: 8 additional patients will be enrolled using the same doses of AZT but a lower dose of probenecid.
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria
Concurrent Medication:
Allowed:
- Interferon.
- Aerosolized pentamidine for Pneumocystis carinii pneumonia (PCP) prophylaxis.
Concurrent Treatment:
Allowed:
- Radiation for skin lesions.
Patients with symptomatic HIV infection taking zidovudine (AZT) five or six times a day as therapy. Includes patients with AIDS who have history of cytologically confirmed Pneumocystis carinii pneumonia (PCP), patients with advanced AIDS related complex (ARC), and HIV antibody positive patients.
Patients must be able to give written informed consent.
Exclusion Criteria
Co-existing Condition:
Patients with the following are excluded:
- Allergy to probenecid.
- Any underlying medical condition sufficient, in the investigator's opinion, to prevent adequate compliance with study therapy.
- History of urinary tract urate stones or gout.
- Becoming acutely ill, unstable, or febrile.
Concurrent Medication:
Excluded:
- Methotrexate.
- Antiretroviral drugs.
- Ganciclovir.
- Amphotericin.
- Experimental drugs.
- Isoniazid.
- Pyrazinamide.
- Flucytosine.
- Intravenous pentamidine.
- Dapsone.
- Fansidar.
- Antineoplastic drugs not specifically allowed.
- Trimethoprim / sulfamethoxazole.
- Valproic acid.
- Opiates.
- Rifampin.
- Sulfonylureas.
Concurrent Treatment:
Excluded:
- Radiation not specifically allowed.
Patients with the following are excluded:
- Allergy to probenecid.
- Any underlying medical condition sufficient, in investigator's opinion, to prevent adequate compliance with study therapy.
- History of urinary tract urate stones or gout.
- Becoming acutely ill, unstable, or febrile.
Contacts and Locations| United States, California | |
| UCD Med Ctr | |
| Sacramento, California, United States, 95817 | |
| United States, Maryland | |
| Johns Hopkins Hosp | |
| Baltimore, Maryland, United States, 21287 | |
| Study Chair: | BG Petty | |
| Study Chair: | DM Kornhauser | |
| Study Chair: | PS Lietman | |
| Study Chair: | JG Bartlett |
More Information
Additional Information:
Publications:
| Responsible Party: | National Institute of Allergy and Infectious Diseases (NIAID) |
| ClinicalTrials.gov Identifier: | NCT00000670 History of Changes |
| Other Study ID Numbers: | ACTG 107, 11082 |
| Study First Received: | November 2, 1999 |
| Last Updated: | March 15, 2012 |
| Health Authority: | United States: Federal Government |
Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
|
Probenecid Drug Evaluation Drug Interactions Acquired Immunodeficiency Syndrome Zidovudine |
Additional relevant MeSH terms:
|
HIV Infections Acquired Immunodeficiency Syndrome Zidovudine Lentivirus Infections Retroviridae Infections RNA Virus Infections Virus Diseases Sexually Transmitted Diseases, Viral Sexually Transmitted Diseases Immunologic Deficiency Syndromes Immune System Diseases Slow Virus Diseases Probenecid Uricosuric Agents |
Gout Suppressants Antirheumatic Agents Therapeutic Uses Pharmacologic Actions Renal Agents Antimetabolites Molecular Mechanisms of Pharmacological Action Reverse Transcriptase Inhibitors Nucleic Acid Synthesis Inhibitors Enzyme Inhibitors Anti-Retroviral Agents Antiviral Agents Anti-Infective Agents Anti-HIV Agents |
ClinicalTrials.gov processed this record on May 16, 2013