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Articles by K. Budde
Total Records ( 2 ) for K. Budde
  P Glander , C Sommerer , W Arns , T Ariatabar , S Kramer , E. M Vogel , M Shipkova , W Fischer , M Zeier and K. Budde

Background and objectives: Adequate early mycophenolic acid (MPA) exposure is an important determinant for effective rejection prophylaxis. This pharmacokinetic study investigated whether an intensified dosing regimen of enteric-coated mycophenolate sodium (EC-MPS) could achieve higher mycophenolic acid (MPA) exposure early after transplantation versus a standard dosing regimen.

Design, setting, participants, & measurements: De novo kidney transplant recipients (n = 75) who were treated with basiliximab induction and cyclosporine were randomly assigned to receive EC-MPS as either standard dosing (1440 mg/d; n = 37) or intensified dosing (days 0 through 14: 2880 mg/d; days 15 through 42: 2160 mg/d; followed by 1440 mg/d; n = 38). Full 12-hour pharmacokinetic and pharmacodynamic profiles were taken at six time points during the first 3 months. Exploratory analysis of inosine monophosphate dehydrogenase (IMPDH) activity was also performed for better understanding of the pharmacokinetic–pharmacodynamic relationship between MPA exposure and IMPDH activity in the early posttransplantation period. Preliminary efficacy parameters, safety, and tolerability were assessed.

Results: Exposure to MPA was significantly higher on days 3 and 10 after transplantation in the intensified versus standard EC-MPS group, with 52.9 versus 22.2% (P < 0.05) of patients reaching MPA exposure >40 mg/h per L in the first week. The intensified regimen resulted in significantly lower IMPDH activity on day 3 after transplantation, and the overall safety was comparable for both groups.

Conclusions: These pharmacokinetic and safety data support further research on the hypothesis that early adequate MPA exposure could improve clinical outcome.

  M Duerr , P Glander , F Diekmann , D Dragun , H. H Neumayer and K. Budde

Background and objective: The clinical manifestation of angioedema ranges from minor facial edema up to life-threatening swelling of mouth and throat. Hereditary defects, drugs, and food allergies may play a role in the development of angioedema. We systematically investigated the incidence of angioedema in renal allograft recipients treated with mTOR inhibitors (mTORis).

Design, setting, participants, & measurements: All patients in the authors' electronic database who had received mTORis (n = 309) between 2000 and 2008 were identified. Of these, 137 were additionally treated with angiotensin-converting enzyme inhibitors (ACEis).

Results: Nine patients (6.6%, 3.8 per 100 treatment years) developed angioedema after a mean period of 123 days under combined therapy with mTORi and ACEi. Among the remaining 172 patients on mTORi, including 119 patients treated with angiotensin-receptor blockers, only two developed angioedema (1.2%, 0.5 per 100 treatment years, P = 0.01). In patients receiving mycophenolate and ACEi (n = 462), 10 instances of angioedema were found (2.1%, 0.8 per 100 treatment years, P = 0.004).

Conclusions: This systematic investigation demonstrated a noticeable incidence of 6.6% angioedema under combined therapy with mTORi and ACEi in kidney transplant recipients. Treatment with either ACEi or mTORi alone resulted in a significantly lower incidence of angioedema, suggesting that this combination should be avoided.

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