Document 0980 DOCN M9470980 TI A phase I study of subcutaneous recombinant interleukin-2 in patients with advanced HIV disease while on zidovudine. DT 9409 AU McMahon DK; Armstrong JA; Huang XL; Rinaldo CR Jr; Gupta P; Whiteside TL; Pazin GJ; Tripoli C; Ho M; Department of Infectious Diseases and Microbiology, Graduate; School of Public Health, University of Pittsburgh, Pennsylvania; 15261. SO AIDS. 1994 Jan;8(1):59-66. Unique Identifier : AIDSLINE MED/94280705 AB OBJECTIVE: A Phase I study of subcutaneous recombinant interleukin-2 (rIL-2). DESIGN: Sixteen patients with advanced HIV infection receiving 600-1200 mg zidovudine per day were divided into three groups, which received sequentially 0.2 x 10(6), 0.7 x 10(6) or 2 x 10(6) units/m2 per day of rIL-2 subcutaneously 5 consecutive days. SETTING: Five-day admission to an academic tertiary care hospital. PATIENTS, PARTICIPANTS: Sixteen unblinded, non-randomized volunteers. INTERVENTIONS: Subcutaneous rIL-2. MAIN OUTCOME MEASURES: Tolerance, toxicity, hematologic, immunologic and antiviral responses. RESULTS: rIL-2 was well-tolerated at the highest dosage, except in two patients who developed significant lymphopenia by the second day of rIL-2 administration, with rebound within 48 h after rIL-2 therapy. The number of eosinophils, CD4+ and CD8+ cells, and percentage of CD16+ (natural killer) cells, remained elevated above baseline for up to 10 weeks. Circulating rIL-2 receptor levels increased transiently during and immediately following rIL-2 administration. A twofold increase in natural killer cell activity against uninfected and HIV-infected targets was observed, but did not persist beyond 10 weeks following rIL-2 administration. There was a transient decrease in blastogen