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  • Title: [Clinical effects of trandolapril in chronic glomerulonephritis patients with renal insufficiency].
    Author: Yoshida A, Takeda A, Fukuda M, Toda S, Morozumi K.
    Journal: Nihon Jinzo Gakkai Shi; 2000 May; 42(4):333-7. PubMed ID: 10897592.
    Abstract:
    Trandolapril is a newly developed angiotensin converting enzyme inhibitor (ACEI) whose characteristic is that it undergoes hepatic excretion. ACEI appears to have a specific reno-protective and antiproteinuric role in patients with chronic glomerulonephritis(CGN). Although renally excreted ACEI tend to accumulate and cause side-effects in patients with renal dysfunction, the pharmacokinetics of trandolapril were not affected by renal dysfunction. We compared the effect of other renally excreted ACEI with those of trandolapril on serum creatinine (s-Cr), creatinine clearance(Ccr), proteinuria and total protein(TP) in CGN patients who switched from another ACEI to trandolapril. Twelve hypertensive patients with chronic renal failure(nine males and three females, ranging from 30 to 72 years of age) who were treated by other renally excreted ACEIs for long periods(2 to 8 years) with some effects on proteinuria and renal function, were enrolled in the present study. After ACEI therapy, s-Cr had decreased(2.09 to 1.80 mg/dl, p < 0.01) as well as proteinuria(1.65 to 0.71 g/day, p < 0.01). A single daily oral dose of 1 mg of trandolapril was administered to these patients regardless of their blood pressure status and renal functions. After change to trandolapril therapy, s-Cr(2.25 to 2.06 mg/dl, p < 0.01) and urinary protein(1.82 to 1.34 g/day, p < 0.05) significantly decreased. On the contrary, both Ccr and TP significantly increased at the level of 39.4 to 44.4 ml/min(p < 0.05) and 6.80 to 7.02 g/dl (p < 0.01), respectively. No apparent side effects, such as hyperkalemia, hyponatremia, anemia or worsening of the existing renal dysfunction except for coughing, were observed in these patients. Furthermore, none of the 12 patients treated with trandolapril required discontinuation of the compound. In conclusion, it was shown from this study that trandolapril is effective for the treatment of hypertensive patients with renal insufficiency irrespective of the original diseases. Thus, it can be envisaged that trandolapril is one of the most appropriate agents compared to other renally excreted ACEI for these patients with renal insufficiency. We recommend the change from other ACEIs to trandolapril, when renal dysfunction might be due to ACEI accumulation.
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