Pharmacodynamics of evocalcet for secondary hyperparathyroidism in Japanese hemodialysis patients.


Journal

Clinical and experimental nephrology
ISSN: 1437-7799
Titre abrégé: Clin Exp Nephrol
Pays: Japan
ID NLM: 9709923

Informations de publication

Date de publication:
Feb 2019
Historique:
received: 12 06 2018
accepted: 15 08 2018
pubmed: 31 8 2018
medline: 18 6 2019
entrez: 31 8 2018
Statut: ppublish

Résumé

This study investigated the pharmacokinetics, pharmacodynamics, and safety of multiple doses of evocalcet in Japanese secondary hyperparathyroidism (SHPT) patients receiving hemodialysis. In this multicenter, open-label study, conducted between August 2013 and March 2014, 27 patients received multiple doses of 1 and 4 mg evocalcet for 14 days, followed by an extension period of multiple doses of 8 and 12 mg evocalcet for 7 days using an intra-patient dose escalation protocol. Pharmacodynamic parameters consisted of measurement of intact parathyroid hormone (PTH), serum-corrected calcium, serum phosphorus and intact fibroblast growth factor 23 concentrations. Safety was assessed by analysis of adverse events. Plasma evocalcet levels reached steady state 3 days after the first day of administration. Pharmacodynamic analyses showed that evocalcet effectively reduced intact PTH and serum-corrected calcium levels. Adverse events (AEs) occurred in 29.6 and 62.5% of patients receiving multiple doses of 1 or 4 mg, respectively. The AE 'blood calcium decreased' occurred in eight patients (33.0%) after multiple doses of 4 mg. All events were mild, except for one patient with a moderate AE (abnormal liver function) and one patient with a severe adverse drug reaction (blood calcium decreased). Multiple doses of evocalcet reduced intact PTH levels with a concomitant decrease in serum calcium levels. Evocalcet was well tolerated in SHPT patients receiving hemodialysis.

Sections du résumé

BACKGROUND BACKGROUND
This study investigated the pharmacokinetics, pharmacodynamics, and safety of multiple doses of evocalcet in Japanese secondary hyperparathyroidism (SHPT) patients receiving hemodialysis.
METHODS METHODS
In this multicenter, open-label study, conducted between August 2013 and March 2014, 27 patients received multiple doses of 1 and 4 mg evocalcet for 14 days, followed by an extension period of multiple doses of 8 and 12 mg evocalcet for 7 days using an intra-patient dose escalation protocol. Pharmacodynamic parameters consisted of measurement of intact parathyroid hormone (PTH), serum-corrected calcium, serum phosphorus and intact fibroblast growth factor 23 concentrations. Safety was assessed by analysis of adverse events.
RESULTS RESULTS
Plasma evocalcet levels reached steady state 3 days after the first day of administration. Pharmacodynamic analyses showed that evocalcet effectively reduced intact PTH and serum-corrected calcium levels. Adverse events (AEs) occurred in 29.6 and 62.5% of patients receiving multiple doses of 1 or 4 mg, respectively. The AE 'blood calcium decreased' occurred in eight patients (33.0%) after multiple doses of 4 mg. All events were mild, except for one patient with a moderate AE (abnormal liver function) and one patient with a severe adverse drug reaction (blood calcium decreased).
CONCLUSION CONCLUSIONS
Multiple doses of evocalcet reduced intact PTH levels with a concomitant decrease in serum calcium levels. Evocalcet was well tolerated in SHPT patients receiving hemodialysis.

Identifiants

pubmed: 30159688
doi: 10.1007/s10157-018-1635-6
pii: 10.1007/s10157-018-1635-6
pmc: PMC6510802
doi:

Substances chimiques

Calcimimetic Agents 0
Naphthalenes 0
PTH protein, human 0
Parathyroid Hormone 0
Pyrrolidines 0
Phosphorus 27YLU75U4W
Fibroblast Growth Factors 62031-54-3
Fibroblast Growth Factor-23 7Q7P4S7RRE
evocalcet E58MLH082P
Calcium SY7Q814VUP

Types de publication

Clinical Trial, Phase I Clinical Trial, Phase II Journal Article Multicenter Study

Langues

eng

Sous-ensembles de citation

IM

Pagination

258-267

Références

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Auteurs

Takashi Shigematsu (T)

Department of Nephrology, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8509, Japan. taki@wakayama-med.ac.jp.

Ryutaro Shimazaki (R)

R&D Division, Kyowa Hakko Kirin Co., Ltd., 1-9-2 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan.

Masafumi Fukagawa (M)

Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara-shi, Kanagawa, 259-1193, Japan.

Tadao Akizawa (T)

Division of Nephrology, Department of Medicine, Showa University School of Medicine, Namics 301, 4-24-51 Takanawa, Minato-ku, Tokyo, 108-0074, Japan.

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Classifications MeSH