The impact of reduced immunosuppression on graft outcomes in elderly renal transplant recipients.
Optimal immunosuppression (IS) for elderly kidney transplant recipients is unknown. We conducted a retrospective cohort study of recipients aged 60 yr or older to examine the impact of reduced IS on graft outcomes. Group 1 patients (n = 101) were initiated on mycophenolate mofetil 2 g/d and tacrolimus, target level 10-12 ng/mL; Group 2 patients (n = 88) with 1 g/d and 8-10 ng/mL, respectively. Dose adjustments were made as required. The groups were comparable except for diabetes, end-stage renal disease duration, and induction. Mycophenolate mofetil dose was reduced in 62% and 38% of the patients, respectively (p < 0.01). Patients were followed for 23.8 +/- 14.2 and 21.3 +/- 11.8 months post-transplant (p = 0.2). Twenty-seven cases in Group 1 (26.7%) and eight in Group 2 (9.1%) lost their grafts (p = 0.01); 19 (18.8%) and 7 (8.0%) cases in each group because of death, respectively (p = 0.09). Sixteen patients in Group 1 (15.8%) and 18 in Group 2 (20.5%) experienced acute rejection (p = 0.36). Patients in Group 2 had a lower risk of graft loss compared with those in Group 1 [adjusted hazard ratio (HR): 0.27, p = 0.006, 95% CI: 0.11-0.69]. There were no significant differences between the groups regarding graft function, BK virus nephropathy, and CMV infection. Our results suggest that reduction in overall IS in this group was associated with improved graft and patient survival.
Badowski
Melissa
M
Department of Pharmacy, University of Maryland Medical Center, Baltimore, MD, USA.
Gurk-Turner
Cheryle
C
Cangro
Charles
C
Weir
Matthew
M
Philosophe
Benjamin
B
Klassen
David
D
Haririan
Abdolreza
A
D000368:Aged; D004305:Dose-Response Relationship, Drug; D005260:Female; D006084:Graft Rejection / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D007165:Immunosuppression Therapy / Q000379:methods*; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D007676:Kidney Failure, Chronic / Q000601:surgery; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013997:Time Factors; D014184:Transplantation, Homologous; D016896:Treatment Outcome
D007166:Immunosuppressive Agents