Methods of vitamin d treatment

A technology of hydroxyvitamins and hydroxyvitamins, which is applied in the field of treatment of vitamin D-responsive diseases, and can solve problems such as elevated PTH

Pending Publication Date: 2018-11-23
OPKO IRELAND GLOBAL HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These products have significant and often severe limitations when administered chronically in high doses, as is often required for vitamin D supersaturation in CKD
Additionally, immediate-release formulations using calcifediol have not previously been shown to be effective in suppressing PTH elevations in clinical studies in patients with stage 3 or 4 CKD

Method used

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  • Methods of vitamin d treatment
  • Methods of vitamin d treatment
  • Methods of vitamin d treatment

Examples

Experimental program
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example 1

[0091]Extended Release 25-Hydroxyvitamin D 3 Phase III clinical trial in patients with CKD stage 3 or 4

[0092] 25-Hydroxyvitamin D 3 The efficacy and safety of the extended-release formulation (RAYALDEE, Opko Ireland Global Holdings Ltd.) was evaluated in two identical multicenter, randomized, placebo-controlled, double-blind studies in patients with secondary parathyroid High energy syndrome (iPTH>85pg / mL), stage 3 or 4 chronic kidney disease and related serum total 25-hydroxyvitamin D content ≥10ng / ml and ≤30ng / ml. Subjects were stratified by disease stage and randomized in a 2:1 ratio to receive an oral dose of RAYALDEE (or matching placebo) 30 micrograms once daily at bedtime for 12 weeks, followed by 30 or 60 micrograms once daily at bedtime. Microgram oral doses of RAYALDEE (or placebo) were treated for an additional 14 weeks. Each capsule contains the following excipients: mineral oil, mono- and diglycerides, paraffin, hypromellose, lauroyl polyoxyglycerides, dehy...

example 2

[0104] Pharmacokinetic Studies

[0105]To evaluate the pharmacokinetics of RAYALDEE in healthy subjects and subjects with Stage 3 or 4 CKD. Following repeated daily doses of RAYALDEE at bedtime to subjects with secondary hyperparathyroidism, chronic kidney disease and vitamin D insufficiency, exposure to calcifediol increased proportionally over the dose range of 30 to 90 micrograms. After about 3 months, a plateau of serum total 25-hydroxyvitamin D is reached. Following multiple dose administration of RAYALDEE, mean steady-state concentrations of serum total 25-hydroxyvitamin D were 53 ng / mL and 68 ng / mL for the 30 mcg and 60 mcg dose groups, respectively. In terms of distribution, calcifediol is extensively bound (>98%) to plasma proteins. Following a single oral dose of RAYALDEE, the mean apparent volume of distribution was 8.8 L in healthy subjects and after repeated dosing it was 30.1 L in subjects with Stage 3 or 4 chronic kidney disease. With regard to elimination,...

example 3

[0113] Extended Release 25-Hydroxyvitamin D 3 Clinical trial in patients with stage 5 CKD

[0114] A multicentre, randomized, double-blind, placebo-controlled clinical study in subjects with secondary hyperparathyroidism, vitamin D insufficiency, and stage 5 CKD undergoing thrice-weekly hemodialysis to evaluate Three weekly doses of 25-hydroxyvitamin D 3 Safety and Efficacy of Extended Release Formulations in Reducing Serum Intact Parathyroid Parathyroid (iPTH) by At Least 30% from Pre-Treatment Baseline Relative to Placebo. 25-Hydroxyvitamin D 3 The extended-release formulation is provided in capsules that have the same formulation as RAYALDEE but contain 150 micrograms of 25-hydroxyvitamin D 3 . Approximately 600 subjects were screened to divide approximately 280 eligible subjects balanced in severity of SHPT into four parallel groups in a 1:1:1:1 ratio to receive the following regimens for 52 weeks: (a) 300 per week micrograms of 25-hydroxyvitamin D 3 extended-relea...

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Abstract

Methods for treating vitamin D insufficiency and secondary hyperparathyroidism in patients having CKD comprising administering repeat doses of 25-hydroxyvitamin D are disclosed. The methods comprise administering 25-hydroxyvitamin D in an amount effective to safely raise the patient's serum 25-hydroxyvitamin D level to greater than 90 ng / ml and / or to control the patient's serum ratio of 25-hydroxyvitamin D to 24,25-dihydroxyvitamin D to less than 20.

Description

[0001] Cross References to Related Applications [0002] This application hereby claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application No. 62 / 314,359, filed March 28, 2016, the disclosure of which is incorporated herein by reference. Background technique [0003] Known as 25-Hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 Vitamin D metabolites (collectively "25-hydroxyvitamin D") are fat-soluble steroid prohormones that promote the maintenance of adequate vitamin D hormone, calcium and phosphorus levels in the bloodstream. Prohormone 25-hydroxyvitamin D 2 by vitamin D 2 (ergocalciferol), and 25-hydroxyvitamin D 3 (calcifediol) from vitamin D 3 (cholecalciferol), mainly by one or more enzymes located in the liver. Both prohormones can also be produced outside the liver by vitamin D in certain cells such as intestinal epithelial cells 2 and vitamin D 3 (collectively referred to as "vitamin D"), the cells contain the same or similar enzymes as tho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K31/592A61K31/593A61P3/02A61P13/12
CPCA61P3/02A61P13/12A61K9/0053A61K31/592A61K31/593A61P5/20A61K31/59
Inventor 乔尔·Z·梅尔尼克查理斯·W·比绍夫P·马丁·佩特科维奇斯蒂芬·A·斯特拉格内尔
Owner OPKO IRELAND GLOBAL HLDG LTD
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