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The Safety and Effectiveness of Fozivudine Tidoxil in HIV-1 Infected Patients

This study has been completed.
Boehringer Mannheim
Information provided by:
NIH AIDS Clinical Trials Information Service Identifier:
First received: November 2, 1999
Last updated: June 23, 2005
Last verified: April 1999

To identify doses of fozivudine tidoxil that are well tolerated and produce measurable antiviral activity.

To identify the adverse event profile that defines the maximum tolerated dose. To characterize the single- and multiple-dose pharmacokinetics of fozivudine and its metabolites.

To correlate the adverse event profile and antiviral activity of fozivudine with pharmacokinetic parameters.

Condition Intervention
HIV Infections Drug: Fozivudine tidoxil

Study Type: Interventional
Study Design: Masking: Double
Primary Purpose: Treatment
Official Title: Multicenter, Rising, Multiple-Dose, Placebo-Controlled, Dose-Response Study to Evaluate the Safety, Tolerability, and Anti-Viral Activity of 4 Weeks of Treatment With 200-800 Mg Fozivudine Tidoxil in Patients With HIV-1 Infection (MF4314).

Resource links provided by NLM:

Further study details as provided by NIH AIDS Clinical Trials Information Service:

Estimated Enrollment: 60
Detailed Description:
In this double-blind, dose-escalating study, patients receive fozivudine tidoxil at one of 5 dosage levels for 4 weeks and are randomized with respect to once- or twice-daily administration (cohorts 2 vs. 3 and 4 vs. 5). Within each cohort, 10 patients are randomized to the study drug and 2 to the placebo. At least 9 of the 12 patients enrolled in Cohort 1 must complete the entire 4-week course before Cohorts 2 and 3 are enrolled. At least 18 of these 24 patients must complete 2 weeks of the 4-week course before Cohorts 4 and 5 are enrolled.

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

Inclusion Criteria

Concurrent Medication:


Primary and secondary prophylaxis for opportunistic infection if stable and initiated at least 3 months prior to study drug administration.

Patients must have:

  • HIV-positive status.
  • One HIV RNA count > 10,000 copies/ml within 30 days prior to entry, with a second count at least 3-fold above or below the first value.

Exclusion Criteria

Co-existing Condition:

Patients with the following conditions or symptoms are excluded:

  • Active medical problems including chronic diarrhea and active opportunistic infections such as cryptococcosis, Pneumocystis carinii, histoplasmosis, etc..
  • Malignancy for which systemic therapy or radiation therapy is expected to be required during the study.
  • Any other disease or condition that would place a patient at undue risk or confound the results of the study.

Concurrent Medication:


Systemic therapy for malignancy.

Prior Medication:


  • Zidovudine or any other nucleoside reverse transcriptase inhibitor.
  • Immunomodulators within one month prior to study drug administration.
  • Investigational drugs within 30 days prior to study drug administration.
  • Systemic cytotoxic chemotherapy within 3 months prior to study drug administration.

Prior Treatment:


  • Extended-field radiation therapy within 3 months prior to study drug administration.
  • Blood transfusion within 2 weeks prior to study drug administration.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided
  More Information Identifier: NCT00002385     History of Changes
Other Study ID Numbers: 277A
Study First Received: November 2, 1999
Last Updated: June 23, 2005

Keywords provided by NIH AIDS Clinical Trials Information Service:
Dose-Response Relationship, Drug
Cohort Studies
Anti-HIV Agents

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
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 processed this record on September 21, 2017