A Study of Foscarnet in the Treatment of HIV Infection in Patients Who Have Taken Zidovudine for a Long Time

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:
NCT00001002
First received: November 2, 1999
Last updated: March 28, 2012
Last verified: March 2012

November 2, 1999
March 28, 2012
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Complete list of historical versions of study NCT00001002 on ClinicalTrials.gov Archive Site
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A Study of Foscarnet in the Treatment of HIV Infection in Patients Who Have Taken Zidovudine for a Long Time
Intermittent Foscarnet Therapy for Human Immunodeficiency Virus Infection in Patients Receiving Long-Term Zidovudine Therapy

To study the toxicity, pharmacokinetics, and antiretroviral effectiveness of combined oral zidovudine (AZT) and intermittent intravenous foscarnet therapy in stable AIDS or AIDS related complex (ARC) patients who have already received AZT for 8 - 52 weeks.

It is hypothesized that the maximum AZT antiretroviral effect, which occurs at 8 weeks of therapy, will be enhanced by 2 weeks of foscarnet treatment, given at the same time by intermittent intravenous infusion. In addition, the further lowering of serum p24 antigen concentration that should occur during combined therapy might continue when oral AZT therapy is continued without foscarnet.

It is hypothesized that the maximum AZT antiretroviral effect, which occurs at 8 weeks of therapy, will be enhanced by 2 weeks of foscarnet treatment, given at the same time by intermittent intravenous infusion. In addition, the further lowering of serum p24 antigen concentration that should occur during combined therapy might continue when oral AZT therapy is continued without foscarnet.

There is a 4-week prestudy monitoring period during which AZT alone is administered on an outpatient basis, followed by a 2-week study period during which both intravenous foscarnet and oral AZT are administered in the hospital. During the subsequent 6-month follow-up period, oral AZT is administered and patients receive clinical evaluations. AZT is held for 48 hours on days before hospitalization and for 24 hours at the end of the hospitalization.

Interventional
Phase 1
Masking: Open Label
Primary Purpose: Treatment
HIV Infections
  • Drug: Zidovudine
  • Drug: Foscarnet sodium
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
12
June 1991
Not Provided

Inclusion Criteria

Concurrent Medication:

Allowed:

Medication necessary for the patient's welfare at the discretion of the investigator.

Patients must have the following:

  • Received zidovudine (AZT) 200 mg every 4 hours (q4h) continuously for 8 - 16 weeks without Grade 3 or higher toxicity.
  • Detectable p24 antigen in serum on at least 2 occasions during the prestudy period. All serum p24 antigen concentrations measured during the prestudy period must be at least twice the concentration cutoff value of the assay.
  • Capability of giving informed consent.
  • Per amendment of 890721, patients must enter the study period by September 30, 1989.

Exclusion Criteria

Co-existing Condition:

Patients with the following will be excluded:

  • A history of hypersensitivity reaction to foscarnet or zidovudine (AZT).
  • History of Grade 3 or 4 toxicity with AZT.
  • Current Grade 2 or higher AZT toxicity.
  • Osteomalacia, neoplasm metastatic to bone, or other known bone disease.
  • Active opportunistic infection requiring myelosuppressive or nephrotoxic therapy.

Concurrent Medication:

Excluded:

  • Antimetabolites.
  • Immunomodulators.
  • Nephrotoxins.
  • Antiviral therapy.
  • Myelosuppressive or nephrotoxic therapy.
  • Acetaminophen.

Patients with the following will be excluded:

  • A history of hypersensitivity reaction to foscarnet or zidovudine (AZT).
  • History of Grade 3 or 4 toxicity with AZT.
  • Current Grade 2 or higher AZT toxicity.
  • Osteomalacia, neoplasm metastatic to bone, or other known bone disease.
  • Active opportunistic infection requiring myelosuppressive or nephrotoxic therapy.
Both
18 Years and older
No
Contact information is only displayed when the study is recruiting subjects
United States
 
NCT00001002
ACTG 053, 11027
Not Provided
National Institute of Allergy and Infectious Diseases (NIAID)
National Institute of Allergy and Infectious Diseases (NIAID)
Not Provided
Study Chair: Jacobson MA
National Institute of Allergy and Infectious Diseases (NIAID)
March 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP