Document 2829 DOCN M94A2829 TI Haplotype-matched peripheral blood mononuclear cell (PBMC) transfusions in patients with late-stage AIDS. DT 9412 AU Gomatos PJ; Reiter WM; Keller RH; Cimoch PJ; Vorce DE; Giannetti B; Uribe MR; Center for Special Immunology, Ft. Lauderdale, Florida. SO Int Conf AIDS. 1994 Aug 7-12;10(1):215 (abstract no. PB0290). Unique Identifier : AIDSLINE ICA10/94369746 AB OBJECTIVE: To determine the safety and tolerance of monthly transfusions of haplotype-matched, cross-matched PBMC's in patients with late-stage AIDS. METHODS: Patients with late-stage AIDS and history of multiple OI's or visceral KS received monthly transfusions of HIV hyperimmune plasma in which HIV was inactivated, followed by > 3 x 10(9) haplomatched, cross-matched PBMC's from an HIV negative donor. RESULTS: Sixteen patients, mean CD4 count 25 cells/mm3 at entry, were followed for an average of 4.1 months (range 1-7 months). During the treatment period, 7 remained stable (avg 6.1 transfusions), 1 withdrew after recovery from a TRALI reaction (1 transfusion), 3 withdrew for non-medical reasons (avg 1.7 transfusions) and 5 died (avg 3.2 transfusions). Manifestations possibly representing GVHD included: flu-like symptoms occurring 3-5 days after cell transfusion and lasting 2-5 days in all patients, sometimes with transient painful lymphadenopathy; episodes of watery diarrhea in 4; transient oral ulcers in 3; transient pruritic papular rash in 2 and an episode of hematemesis in 1 patient with chronic inflammation on GI biopsy, non-Hodgkins lymphoma and CMV colitis who was lost to follow-up and died from an unspecified cause. Remaining deaths were from OI's in 3 patients and neutropenia/sepsis in 1. Ten patients received 3 or more transfusions from the same donor (avg 5.6). Following 4 transfusions, 1 patient transiently developed an IgG antibody against donor T cell antigen, which subsequently cleared, allowing further transfusion from this donor. CONCLUSIONS: Repetitive transfusions of matched PBMC's in patients with late-stage AIDS were generally well-tolerated. In all but one subject with hematemesis, manifestations possibly representing GVHD were sporadic, mild and self-limited. Repetitive transfusions of cells from a single donor did not result in sustained sensitization in any recipient. An expanded phase I/II study has been initiated. DE Acquired Immunodeficiency Syndrome/*THERAPY Graft vs Host Disease/ETIOLOGY Haplotypes/GENETICS Hematemesis/ETIOLOGY Histocompatibility Testing Human Immunization *Leukocyte Transfusion/ADVERSE EFFECTS Leukocytes, Mononuclear/*TRANSPLANTATION Safety Treatment Outcome MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).