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  • Title: Comparison of low-dose deferoxamine versus standard-dose deferoxamine for treatment of aluminium overload among haemodialysis patients.
    Author: Kan WC, Chien CC, Wu CC, Su SB, Hwang JC, Wang HY.
    Journal: Nephrol Dial Transplant; 2010 May; 25(5):1604-8. PubMed ID: 19948879.
    Abstract:
    BACKGROUND: Patients on maintenance haemodialysis are at high risk of aluminium overload. While deferoxamine (DFO) has potential adverse effects, lower DFO dosages may afford good efficacy with fewer side effects. We evaluated the therapeutic response of low-dose (2.5 mg/kg/week) DFO among haemodialysis patients with aluminium overload. METHODS: We recruited the participants via basal predialysis serum aluminium (Al) levels of >or=20 microg/L with clinical suspicion of aluminium toxicity or hyperparathyroidism indicating parathyroidectomy and positive DFO tests. Patients were randomly divided into standard-dose (5 mg/kg/week) and low-dose (2.5 mg/kg/week) groups. We compared the differences of mineral biochemical and haematological parameters before and after DFO treatment. Successful treatment was defined as a serum aluminium increase of <50 microg/L by DFO test. Adverse events during DFO therapy between the groups were also compared. RESULTS: In total, 42 haemodialysis patients completed treatment (standard-dose group, n = 21; low-dose group, n = 21). The demographic characteristics of the groups did not differ. Serum corrected calcium and ferritin decreased in both groups, while serum total alkaline phosphatase increased in both groups. Serum phosphorus increased in low-dose group (P = 0.029), while plasma intact parathyroid hormone increased in standard-dose group (P = 0.004). The successful treatment response rates did not differ between the two groups (standard-dose: 12/21, 57% vs low-dose: 13/21, 62%; P = 0.75). CONCLUSIONS: Low-dose DFO may offer similar therapeutic effects as standard-dose DFO therapy.
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