Clinical impact using low dose mycophenolate mofetil with tacrolimus on acute rejection, infectious diseases and non-infectious complications in renal transplant: A Single Hospital Experience in Mexico.

Background. The evidence supporting a starting dose of 2 g/day of mycophenolate mofetil (MMF) in combination with tacrolimus (TAC) in renal transplant (RT) is still limited but maintaining the dose of less than 2g could result in worse clinical outcomes in terms of acute rejection (AR). Research Question: This study aim was to determine the association between AR, infectious and non-infectious complications after RT with the dose of 1.5g vs. 2g of MMF. Design. A prospective cohort was performed with a 12-month follow-up in recipients of RT from living donors with low doses of MMF (1.5 g/day) or use of standard dosage (2 g/day). The association between adverse effects and complications and doses of MMF were examined in Cox proportional hazard models and survival free of AR, infectious diseases, and non-infectious complications was evaluated by the Kaplan-Meier test. Results. At the end of the follow-up, the incidence of infectious diseases was 52% vs. 50% (p=0.71) and AR was 5% vs. 5% (p=0.86), respectively. Survival free of GI complications requiring medical attention was higher in the low dose group compared to the standard dose (88% vs. 45%, respectively; p<0.001). Discussion. The use of 1.5 g/day of MMF is safe in Mexican population with RT from living donors without increasing the risk of AR, and it confers a reduction of adverse events.