Gastrointestinal Quality of Life Improvement of Renal Transplant Recipients Converted From Mycophenolate Mofetil to Enteric-Coated Mycophenolate Sodium Drugs or Agents: Mycophenolate Mofetil and Enteric-Coated Mycophenolate Sodium

[摘要]：Background. In renal transplant (RT) recipients, treatment with enteric-coated mycophenolate sodium (EC-MPS) improves gastrointestinal (GI) tolerability compared with mycophenolate mofetil(MMF). The impact of conversion from MMF to EC-MPS on patient's health-related quality of life (HRQoL) using GI-specific instruments has been scarcely evaluated in randomized trials. Methods. The present randomized, multicenter, open-labeled, 12-week study included RT recipients experiencing GI adverse events due to MMF treatment. Patients were randomized to continue with MMF(n=54) or change to EC-MPS (n=59). Patients were converted at equimolar doses, and dose was optimized between weeks 2 and 6 to achieve maximum tolerated dose. Results. Incidence of GI complications (particularly diarrhea) was significantly lower in the EC-MPS group (67.8% vs. 87.0%, P=0.015). The baseline-adjusted mean global scores at 12 weeks in GI quality of life index were significantly higher in the EC-MPS group versus MMF (P=0.014). Results at 12 weeks for all secondary scales indicated better HRQoL in the EC-MPS group compared with the MMF group (Gastrointestinal Symptom Rating Scale, Psychological General Well-Being Index, and overall treatment effect). In the EC-MPS group, a higher percentage of patients were receiving intermediate doses of mycophenolic acid (720 mg/day) at 12 weeks compared with MMF (55.4% vs. 27.4%, P=0.003), whereas no differences were observed for high doses (>720 mg/day). Conclusions. In RT patients with GI undesirable effects due to MMF, switching from MMF to EC-MPS may enable an increase in the maximum tolerated dose of mycophenolic acid and reduce GI complications, thus enhancing patients' GI HRQoL.

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