Clinical Evolution in the First 3 Months of Patients After Liver Transplantation in Maintenance Phase Converted From Mycophenolate Mofetil to Mycophenolate Sodium Due to Gastrointestinal Complications

The enteric-coated mycophenolate sodium (EC-MPS) is a new formulation of mycophenolic acid with a gastro-resistant enteric coating, which releases the drug in the intestine, reducing the incidence of the gastrointestinal (GI) adverse effects. The present work provided a summary of 20 patients with liver transplantation and more than a 1 year of treatment with mycophenolate mofetil (MMF) who, after presentation of GI complications, were converted to EC-MPS. The patients were followed over a 3-month period after beginning EC-MPS treatment. The mean age of the cohort was 53 ± 10 years and included 75% men. The reasons for transplantation were ethanol cirrhosis (70%), hepatitis C cirrhosis (30%), hepatocarcinoma (5%), and Wilson's disease (5%). At baseline, all patients were being treated with cyclosporine (CsA). CsA doses and levels were reduced during follow-up: baseline dose 179 mg/day versus 143 mg/day at 3 months; levels: 90.4 ng/mL versus 85.8 ng/mL, respectively (P = .017). The administered dose of EC-MPS was 720 mg/day in all cases. The GI complications at baseline were: diarrhea 60% (92% moderate-severe), abdominal discomfort 60% (58% moderate), abdominal pain 45% (44% moderate-severe), gas 40% (38% moderate-severe), nausea 20% (25% moderate), and dyspepsia 20% (mild). After 3 months of EC-MPS treatment, only two patients (10%) displayed moderate diarrhea. The renal evolution was favorable, serum creatinine was reduced, and 24-hour creatinine clearance significantly increased (creatinine: 1.78 ± 1.6 mg/dL at baseline versus 1.30 ± 0.3 mg/dL at 3 months, P = .002; creatinine clearance: 72.8 ± 18 mL/min versus 79.6 ± 13 mL/min, P = .001). Conversion of MMF to EC-MPS in liver transplant recipients solved the GI tolerability problems and improved renal function during the first 3 months, probably due to the concomitant reduction of anticalcineurinic dose.