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Leukocyte-Reduced Red Blood Cell Transfusions in Patients With Anemia and Human Immunodeficiency Virus Infection
The Viral Activation Transfusion Study: A Randomized Controlled Trial
Ann C. Collier, MD;
Leslie A. Kalish, ScD;
Michael P. Busch, MD, PhD;
Terry Gernsheimer, MD;
Susan F. Assmann, PhD;
Thomas A. Lane, MD;
David M. Asmuth, MD;
Michael M. Lederman, MD;
Edward L. Murphy, MD, MPH;
Princy Kumar, MD;
Meera Kelley, MD;
Timothy P. Flanigan, MD;
Deborah K. McMahon, MD;
Henry S. Sacks, MD, PhD;
Melanie S. Kennedy, MD;
Paul V. Holland, MD;
for the Viral Activation Transfusion Study Group
JAMA. 2001;285:1592-1601.
Context Allogeneic blood transfusions have immunomodulatory effects and have been associated with activation of human immunodeficiency virus (HIV) and cytomegalovirus (CMV) in vitro and of HIV in small pilot studies. Retrospective studies suggest that transfusions adversely affect the clinical course of HIV. Data in selected non–HIV-infected patients requiring blood transfusion have suggested clinical benefit with leukocyte-reduced red blood cells (RBCs).
Objective To compare the effects of leukoreduced and unmodified RBC transfusions on survival, complications of acquired immunodeficiency syndrome, and relevant laboratory markers in HIV-infected patients.
Design and Setting Double-blind randomized controlled trial conducted in 11 US academic medical centers from July 1995 through June 1999, with a median follow-up of 12 months (24 months in survivors).
Patients A total of 531 persons infected with HIV and CMV, aged 14 years or older, who required transfusions for anemia; 259 received leukoreduced transfusions and 262 received unmodified transfusions (10 did not receive the planned transfusion).
Main Outcome Measures Survival and change in plasma HIV RNA level 7 days after transfusion, compared by type of transfusion.
Results At entry, the groups were similar in demographic, clinical, and relevant laboratory characteristics. A total of 3864 RBC units were transfused. Two hundred eighty-nine deaths occurred (151 with leukoreduced transfusion; 138 with unmodified transfusion); median survival was 13.0 and 20.5 months, respectively (relative hazard [RH], 1.20; 95% confidence interval [CI], 0.95-1.51; log-rank P = .12). Analyses adjusted for prognostic factors suggested possible worse survival with leukoreduction (RH, 1.35; 95% CI, 1.06-1.72). There was no difference in time to new opportunistic event/death or frequency of transfusion reactions. No changes in plasma HIV RNA level were seen in either group at days 7, 14, 21, or 28, even in patients not taking antiretroviral drugs. There were no differences in trends between groups in CMV DNA, CD4 cell counts, activated (CD38% or human leukocyte antigen-DR) CD8 cell counts, or plasma cytokine levels.
Conclusions We found no evidence of HIV, CMV, or cytokine activation following blood transfusion in patients with advanced HIV infection. Leukoreduction provided no clinical benefit in these patients. These data demonstrate the importance of conducting controlled studies of effects of leukoreduction in different patient populations, since smaller studies in other patient populations have suggested leukoreduction may be beneficial.
Author Affiliations: School of Medicine, University of Washington, Seattle (Drs Collier and Gernsheimer); New England Research Institutes, Watertown, Mass (Drs Kalish and Assmann); Blood Centers of the Pacific, San Francisco, Calif (Dr Busch); School of Medicine, University of California, San Francisco (Drs Busch and Murphy); Puget Sound Blood Center, Seattle, Wash (Dr Gernsheimer); School of Medicine, University of California, San Diego (Dr Lane); School of Medicine, University of Texas, Galveston (Dr Asmuth); School of Medicine, Case Western Reserve University, Cleveland, Ohio (Dr Lederman); School of Medicine, Georgetown University, Washington, DC (Dr Kumar); School of Medicine, University of North Carolina, Chapel Hill (Dr Kelley); School of Medicine, Brown University, Providence, RI (Dr Flanigan); School of Medicine, University of Pittsburgh, Pittsburgh, Pa (Dr McMahon); School of Medicine, Mount Sinai, New York, NY (Dr Sacks); Ohio State University Medical Center, Columbus (Dr Kennedy); and Sacramento Medical Foundation Blood Centers, Sacramento, Calif (Dr Holland).
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