Status
Conditions
Treatments
About
To evaluate the safety and immunological effects of polyethylene glycolated-interleukin-2 (PEG-IL-2) on asymptomatic (without symptoms) HIV-seropositive patients who are taking zidovudine (AZT). To enhance measures of immune function with well-tolerated doses of PEG-IL-2, an immunomodulator, in a regimen designed to allow its use in outpatients with normal daily activity (i.e., full-time employment, etc.). Recombinant IL-2 (without PEG modification) was administered to HIV-infected patients by daily intradermal injection. At the low doses used, this was non-toxic, well-tolerated, and gave a systemic response as measured by natural killer cell and lymphokine-activated killer cell activity, but required daily administration. In the current study, the PEG modification of IL-2 is used since it has a much longer prolonged half-life compared with the non-PEG compound, without loss of functional activity.
Full description
Recombinant IL-2 (without PEG modification) was administered to HIV-infected patients by daily intradermal injection. At the low doses used, this was non-toxic, well-tolerated, and gave a systemic response as measured by natural killer cell and lymphokine-activated killer cell activity, but required daily administration. In the current study, the PEG modification of IL-2 is used since it has a much longer prolonged half-life compared with the non-PEG compound, without loss of functional activity.
In the first, dose-escalation phase of the study, PEG-IL-2 is injected into the skin of the back by either the intradermal (ID) or subcutaneous (SC) route, to establish an optimal dose (which when given ID results in local induration = or > 25 mm without significant toxicity). The ID and SC routes are compared for systemic effect and toxicity. In the second phase of the study, the PEG-IL-2 is administered for 6-8 weeks using the optimal dosage, frequency, and route determined in the initial phase (probably 2-3 times per week) while local and systemic effects are monitored. These include measures of viral titer, peripheral blood mononuclear cell phenotype, CBC and CD4 counts, and in vitro cytotoxicity assays.
Sex
Ages
Volunteers
Inclusion and exclusion criteria
Inclusion Criteria
Concurrent Medication:
Allowed:
Patients must have:
Prior Medication:
Allowed:
Exclusion Criteria
Co-existing Condition:
Patients with the following conditions or symptoms are excluded:
Concurrent Medication:
Excluded:
Patients with the following are excluded:
Prior Medication:
Excluded within 12 weeks prior to study entry:
Active drug or alcohol abuse.
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal