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- Title
Prospective Randomized Multicenter Trial of Sevelamer Hydrochloride and Calcium Carbonate for the Treatment of Hyperphosphatemia in Hemodialysis Patients in Japan.
- Authors
Koiwa, Fumihiko; Onoda, Noritaka; Kato, Hitoshi; Tokumoto, Akihide; Okada, Tomoyuki; Fukagawa, Masashi; Shigematsu, Takashi
- Abstract
A prospective, randomized open-label trial of sevelamer hydrochloride with or without calcium carbonate (CC) involved 86 hemodialysis patients in Japan. The dosage of CC was fixed at 3.0 g/day for the 12-week study. After the first 4 weeks all subjects were changed from CC to sevelamer 3.0 g/day for another 4 weeks, then allocated randomly to three groups for the final 4 weeks: group A, sevelamer 6.0 g/day; group B, sevelamer 3.0 g/day and CC 3.0 g/day; group C, CC 3.0 g/day. The target serum phosphorous concentration (P) = 5.5 mg/dL and the corrected calcium concentration (Ca) was 9.0–10.0 mg/dL. Of the 86 patients, 62 finished the study without a change of dosage and their data were analyzed (group A, N = 16; group B, N = 26; group C, N = 20). At week 8 compared with week 4, the concentration of P increased from 5.7 ± 1.4 to 6.4 ± 1.7 mg/dL in group A, and decreased significantly in groups B and C, and in group B compared with groups A and C; groups A and C had similar concentrations at week 8. The Ca concentration decreased significantly from 9.7 ± 1.0 to 9.1 ± 0.7 mg/dL after the change to sevelamer. At week 8 Ca was not significantly changed in group A, whereas a significant increase occurred in groups B and C. Side-effects with sevelamer administration occurred in 34 of the 86 patients and 24 dropped out of the study, with a high frequency in group A (13/29; 44.8%). In conclusion, there was an additive effect of sevelamer for the treatment of hyperphosphatemia with CC. The combination therapy was better tolerated and showed higher patient compliance than CC or sevelamer monotherapy.
- Subjects
CALCIUM carbonate; THERAPEUTICS; HEMODIALYSIS patients; JAPANESE people; PHOSPHATES; HYPERVITAMINOSIS; CLINICAL trials; DISEASES
- Publication
Therapeutic Apheresis & Dialysis, 2005, Vol 9, Issue 4, p340
- ISSN
1744-9979
- Publication type
Article
- DOI
10.1111/j.1744-9987.2005.00294.x