Abstract
Background
In April 2015, five types of phosphate binders (PBs) were available by prescription in Japan, namely calcium carbonate, sevelamer hydrochloride, lanthanum carbonate, bixalomer, and ferric citrate hydrate (FeC). FeC reduces serum phosphorus levels and increases the body’s iron stores. However, it is unclear whether FeC lowers serum phosphorus relative to other agents in a regional practical setting.
Methods
We performed a retrospective observational cohort study of regional hemodialysis surveillance in the western Saitama area of Japan, which included 1374 hemodialysis patients enrolled from 32 satellite dialysis units. The clinical data and prescribing information were retrospectively collected and analyzed. The difference in serum phosphorus among the groups administered five types of PBs (new or additional) from April to September 2015 was the primary outcome.
Results
As of April 2015, the median values of serum phosphorus, corrected calcium, and intact parathyroid hormone were 5.4 mg/dL, 9.1 mg/dL, and 147 pg/dL, respectively (N = 1374). Unexpectedly, with an increase in the number of PBs administered, serum phosphorous levels increased (p < 0.001). The significant changes in the serum phosphorus and hemoglobin levels were associated with the prescription of FeC but not with that of the other PBs.
Conclusions
This regional survey suggests that serum phosphorus is well managed and that FeC has the potential to reduce the serum phosphorus level relative to other PBs and to ameliorates anemia.
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Change history
25 September 2019
In the Original publication, Under the table 1, the number of participants in the April has been incorrectly published as 1373. The corrected table is given below.
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Acknowledgements
The authors acknowledge all hemodialysis facilities participated: Wakaba Internal Clinic, Ome Kidney Clinic, Musashimurayama Hospital, Koujinkai Takasaka Medical Clinic, Gyoda General Hospital, Ikebukuro Hospital, Ogose Medical Clinic, Kanetsu Hospital, Matsumoto Clinic, Kobayashi Internal Clinic, Tsurugashima Ekimae Clinic, Oka Hospital, Higashihanno Ekimae Clinic, Kamino Clinic, Kokusaiji Clinic, Yoriihoncyo Clinic, Sakura Memorial Hospital, Shalom Hospital, Gyoda Central General Hospital, Higashimatsuyama Kojin Clinic, Koujinkai Ogawa Hospital, Chichibu Municipal hospital, Okamura Memorial Hospital, Chichibu Daiichi Hospital, Musashidai Hospital, Minano Hospital.
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The contributing authors reported the following financial supports: Hirokazu Okada received Astellas Pharma Inc, Takeda Pharmacological Company, Pfizer Japan Inc, MSD Inc, Novartis Pharma Japan, Otsuka Pharmacological Inc, Kyowa Hakko Kirin, Daiichi Sankyo Inc, Mitsubishi Tanabe Parma, Cyugai Pharma, Torii Pharma, Bayer Yakuhin, Boehringer-Ingelheim Japan, and Eli Lilly Japan.
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All the procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee at which the studies were conducted (IRB approval number 16–023) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Amano, H., Ohno, Y., Inoue, T. et al. Regional prescription surveillance of phosphate binders in the western Saitama area: the substantial role of ferric citrate hydrate in improving serum phosphorus levels and erythropoiesis. Clin Exp Nephrol 23, 841–851 (2019). https://doi.org/10.1007/s10157-019-01715-8
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DOI: https://doi.org/10.1007/s10157-019-01715-8