WO2009047644A2 - Method of treating vitamin d insufficiency and deficiency - Google Patents

Method of treating vitamin d insufficiency and deficiency Download PDF

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Publication number
WO2009047644A2
WO2009047644A2 PCT/IB2008/003480 IB2008003480W WO2009047644A2 WO 2009047644 A2 WO2009047644 A2 WO 2009047644A2 IB 2008003480 W IB2008003480 W IB 2008003480W WO 2009047644 A2 WO2009047644 A2 WO 2009047644A2
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WIPO (PCT)
Prior art keywords
vitamin
supplement
hydroxyvitamin
serum
levels
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PCT/IB2008/003480
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English (en)
French (fr)
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WO2009047644A3 (en
Inventor
P. Martin Petkovich
Christian F. Helvig
Samir P. Tabash
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Cytochroma Inc
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Cytochroma Inc
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Priority to JP2010504912A priority Critical patent/JP5444212B2/ja
Priority to DK08837933.4T priority patent/DK2148684T3/da
Priority to US12/597,230 priority patent/US11752158B2/en
Priority to EP08837933A priority patent/EP2148684B1/en
Priority to PL08837933T priority patent/PL2148684T3/pl
Priority to KR1020097024309A priority patent/KR101495578B1/ko
Priority to ES08837933T priority patent/ES2403107T3/es
Priority to CN200880013367.XA priority patent/CN101668532B/zh
Priority to CA2683628A priority patent/CA2683628C/en
Publication of WO2009047644A2 publication Critical patent/WO2009047644A2/en
Publication of WO2009047644A3 publication Critical patent/WO2009047644A3/en
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/59—Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/59—Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
    • A61K31/592—9,10-Secoergostane derivatives, e.g. ergocalciferol, i.e. vitamin D2
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/59—Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
    • A61K31/593—9,10-Secocholestane derivatives, e.g. cholecalciferol, i.e. vitamin D3
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/02—Nutrients, e.g. vitamins, minerals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

  • the disclosure relates generally to methods and dosage forms for reducing toxicity associated with treatment using vitamin D 3 , the pro-hormone 25-hydroxyvitamin D 3 , active hormone 1 ,25-dihydroxyvitamin D3 or vitamin D 3 analogs (including hydroxy and dihydroxy forms).
  • the Vitamin D metabolites known as 25-hydroxyvitamin D 2 and 25- hydroxyvitamin D 3 are fat-soluble steroid prohormones to Vitamin D hormones that contribute to the maintenance of normal levels of calcium and phosphorus in the bloodstream.
  • the prohormone 25-hydroxyvitamin D 2 is produced from Vitamin D 2 (ergocalciferol)
  • 25-hydroxyvitamin D 3 is produced from Vitamin D 3 (cholecalciferol) primarily by one or more enzymes located in the liver.
  • the two prohormones can also be produced outside of the liver from Vitamin D 2 and Vitamin D 3 (collectively referred to as "Vitamin D") in certain cells, such as enterocytes, which contain enzymes identical or similar to those found in the liver.
  • the prohormones are further metabolized in the kidneys into potent hormones.
  • the prohormone 25-hydroxyvitamin D 2 is metabolized into a hormone known as l ⁇ ,25- dihydroxyvitamin D 2 ; likewise, 25-hydroxyvitamin D3 is metabolized into l ⁇ ,25- dihydroxyvitamin D 3 (calcitriol). Production of these hormones from the prohormones can also occur outside of the kidney in cells which contain the required enzyme(s).
  • Vitamin D hormones have essential roles in human health which are mediated by intracellular Vitamin D receptors (VDR).
  • VDR Vitamin D receptors
  • the Vitamin D hormones regulate blood calcium levels by controlling the absorption of dietary calcium by the small intestine and the reabsorption of calcium by the kidneys. Excessive hormone levels, whether transient or prolonged, can lead to abnormally elevated urine calcium (hypercalciuria), blood calcium (hypercalcemia), and blood phosphorus (hyperphosphatemia).
  • the Vitamin D hormones also participate in the regulation of cellular differentiation and growth, parathyroid hormone (PTH) secretion by the parathyroid glands, and normal bone formation and metabolism. Further, Vitamin D hormones are required for the normal functioning of the musculoskeletal, immune, and renin-angiotensin systems. Numerous other roles for Vitamin D hormones are being postulated and elucidated, based on the documented presence of intracellular VDR in nearly every human tissue and the variety of vitamin D responsive genes.
  • Vitamin D hormones on specific tissues depend on the degree to which they bind to (or occupy) the intracellular VDR in those tissues.
  • the prohormones 25-hydroxyvitamin Do and 25-hydroxyvitamin D 3 have essentially identical affinities for the VDR which are estimated to be at least 100-fold lower than those of the Vitamin D hormones.
  • physiological concentrations of 25-hydroxyvitamin D 2 and 25- hydroxyvitamin D 3 have little, if any, biological actions without prior metabolism to Vitamin D hormones.
  • supraphysiologic levels of 25-hydroxyvitamin Do and 25- hydroxyvitamin D 3 in the range of 10 to 1,000 fold higher than normal, may sufficiently occupy the VDR to exert actions like the Vitamin D hormones.
  • Blood levels of both the prohormones and the Vitamin D hormones are normally constant throughout the day, given a sustained, adequate supply of Vitamin D from sunlight exposure or an unsupplemented diet. Blood levels of 25-hydroxyvitamin D, however, can increase markedly after administration of currently available Vitamin D supplements, especially at doses which greatly exceed the minimum amounts required to prevent Vitamin D deficiency, rickets, or osteomalacia. Prohormone blood levels can also increase markedly after rapid intravenous administration of 25-hydroxyvitamin D 2 or 25- hydroxyvitamin D 3 , or after administration of immediate release forms of these compounds.
  • Vitamin D supply can cause serious bone disorders, including rickets and osteomalacia, and may contribute to the development of many other disorders including osteoporosis, non-traumatic fractures of the spine and hip, obesity, diabetes, muscle weakness, immune deficiencies, autoimmune disorders, hypertension, psoriasis, and various cancers.
  • AI Adequate Intake
  • Dietary Reference Intakes Dietary reference intakes: calcium, phosphorus, magnesium, vitamin D, and fluoride. Washington, DC: National Academy Press ( 1997)]
  • the AI for Vitamin D was defined primarily on the basis of a serum 25-hydroxyvitamin D level sufficient to prevent Vitamin D deficiency, rickets or osteomalacia (or at least 11 ng/niL).
  • the IOM also established a Tolerable Upper Intake Level (UL) for Vitamin D of 2,000 IU per day, based on evidence that higher doses are associated with an increased risk of hypercalciuria, hypercalcemia and related sequelae, including cardiac arrhythmias, seizures, and generalized vascular and other soft-tissue calcification.
  • UL Tolerable Upper Intake Level
  • Vitamin D 3 supplements are far from ideal for safely achieving and maintaining optimal blood 25-hydroxyvitamin D levels. These preparations typically contain 400 IU to 5,000 IU of Vitamin D 3 and are formulated for quick or immediate release in the gastrointestinal tract. When administered at chronically high doses, as is often required for Vitamin D repletion, these products may cause toxicity.
  • Vitamin D 3 supplementation above the UL is frequently needed in certain individuals; however, currently available oral Vitamin D 3 supplements are not well suited for maintaining blood 25-hydroxyvitamin D 3 levels at optimal levels given the problems of administering high doses of Vitamin D compounds which may give rise to toxicity.
  • 25-hydroxyvitamin D 3 can produce surges or spikes in blood and intracellular 25-hydroxyvitamin D levels, thereby promoting toxicity manifesting as hypercalcemia and hypercalciuria.
  • alternative approaches to Vitamin D supplementation are needed given the safety problems encountered with currently available oral Vitamin D supplements.
  • the present invention relates generally to methods for effectively and safely restoring blood 25-hydroxyvitamin D to optimal levels (defined for patients as >30 ng/niL 25-hydroxyvitamin D, or >75 nmol/L) and maintaining blood 25-hydroxyvitamin D levels at such optimal levels, methods for preventing the drop of blood 25-hydroxyvitamin D levels below such optimal levels, and methods for preventing or treating secondary hyperparathyroidism.
  • Excessive elevation of serum 25-hydroxyvitamin D 3 can give rise to toxicity.
  • One manifestation of such toxicity is attributable to elevated serum calcium levels, including cardiac arrhythmias, seizures, and generalized vascular and other soft-tissue calcification.
  • the present invention is based on the demonstration that toxicity associated with treatment using the pro-hormone 25-hydroxyvitamin D 3 can be reduced or eliminated by coadministration of 25-hydroxyvitamin Do.
  • the invention is also based on the concept that coadministration of 25-hydroxyvitamin D 3 along with 25-hydroxyvitamin D 2 can more effectively elevate serum levels of 25-hydroxyvitamin D without causing toxicity than administration of either alone.
  • the invention thus relates to methods, compositions, dosage forms, and kits that can be used to restore serum 25-hydroxyvitamin D levels to normal (at least 30 ng/ml) or higher than normal levels in a safe and effective manner, to prevent the occurrence or severity of subnormal levels of serum 25-hydroxyvitamin D, and/or to prevent or treat secondary hyperparathyroidism.
  • the methods of the invention include dosing a subject, an animal or a human patient, with a sufficient amount of one or more vitamin D 2 supplements to reduce vitamin D toxicity associated with administration of one or more vitamin D 3 supplements.
  • the vitamin D 3 supplement referred to herein is vitamin D 3 (cholecalciferol), 25-hydroxyvitamin D 3 , l ⁇ ,25-dihydroxyvitamin D 3 , or a vitamin D 3 analog (including all known hydroxy and dihydroxy forms), including, 1 ,25- dihydroxy-19-nor-vitamin D 3> l ⁇ -hydroxy vitamin D 3 , and other compounds known in the art.
  • the vitamin Di supplement referred to herein is ergocalciferol or 25-hydroxyvitamin D 2 or 1,25-dihydroxyvitamin Di, and other compounds known in the art.
  • the one or more vitamin D 2 supplements may be administered separately or in some combination during a course of treatment; similarly, the one or more vitamin D 3 supplements may be administered separately or in some combination during a course of treatment.
  • the vitamin D 3 supplement is administered in a therapeutically effective amount (e.g., amount effective to prevent or treat hypovitaminosis D and/or secondary hyperparathyroidism), while the vitamin Da supplement is administered in an amount effective to reduce vitamin D toxicity.
  • administration of the vitamin D2 supplement permits administration of the vitamin D 3 supplement in an amount that would normally be expected to result in adverse effects or toxicity.
  • the vitamin D 2 supplement and vitamin D 3 supplement can be administered by the same or different routes, e.g.
  • the vitamin D 2 supplement and vitamin D 3 supplement can be administered at the same time, or at different but overlapping times during a course of treatment (e.g., on alternating days or at different times in the same day).
  • the vitamin D 2 supplement and vitamin D 3 supplement are administered on the same day.
  • the ratio (by weight or molarity) of vitamin D 3 supplement to vitamin D 2 supplement can range from 100:1 to 1:20, e.g. 75:1 , 60:1, 50: 1, 40: 1, 30: 1, 20: 1, 15: 1, 10: 1 , 5: 1, 4: 1, 3: 1 , 2: 1, 1.5:1, 1: 1, 1:2, 1:3, 1:4, 1:5, 1: 10, or 1:15. While ratios tested herein were ratios measured by weight, the molecular weight of the D 2 and D 3 compounds tested is similar; it is expected that the activity is on a molar basis and thus the results apply similarly to ratios measured by molarity.
  • the methods of the invention involve providing a vitamin D 3 supplement to a patient, optionally in a therapeutically effective amount, and informing the patient that adverse effects related to administration of such vitamin D 3 supplement can be reduced by co-administration of a vitamin D 2 supplement.
  • the method involves co-administering a combination of 25-hydroxyvitamin D 3 and 25-hydroxyvitamin D 2 in a single combined formulation, or in two separate formulations through various routes including, intravenous, oral, topical, intraperitoneal and trans-dermal.
  • the 25- hydroxyvitamin D 3 is administered in a therapeutically effective amount to raise serum 25- hydroxyvitamin D levels, preferably to raise 25-hydroxyvitamin D 3 levels to 30 ng/mL or higher, and the 25-hydroxyvitamin D 2 is administered in a toxicity-reducing amount.
  • Coadministration of 25-hydroxyvitamin D 3 along with an amount of 25-hydroxyvitamin D 2 can effectively elevate serum 25-hydroxyvitamin D levels with a significantly reduced level of toxicity or a lower risk of toxicity as compared to the administration of 25-hydroxyvitamin D-, alone.
  • serum levels of 25-hydroxyvitamin D can be raised more rapidly and safely, and/or higher amounts of 25-hydroxyvitamin D 3 can be administered.
  • this invention provides methods for co-administration of ergocalciferol and cholecalciferol that will have safety advantages compared to the administration of cholecalciferol alone.
  • this invention provides methods for co-administering 25-hydroxyvitamin D 3 along with ergocalciferol or, co-administering cholecalciferol along with 25-hydroxyvitamin D 2 .
  • doses of vitamin D 2 supplement and vitamin D 3 supplement are administered together or separately within a time frame in which their administration achieves the safety benefit described in this invention.
  • 25- hydroxyvitamin D2 may be administered at one hour before, 6 hours before, 12 hours before, 24 hours before or 2 days before administration of 25-hydroxyvitamin D 3 .
  • 25- hydroxyvitamin D 3 may be administered at one hour before, 6 hours before, 12 hours before, 24 hours before or 2 days before administration of 25-hydroxyvitamin D 2 .
  • the patient may be given instructions to take 25-hydroxyvitamin D 3 one, two or three times per week and 25-hydroxyvitamin D 2 one, two or three times per week, so long as each vitamin D 2 supplement and vitamin D 3 supplement is taken at least once (or twice or three times) per week.
  • 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 or combinations thereof, optionally with other therapeutic agents, can be administered in accordance with the above described embodiments in cumulative dosage amounts of from about 1 to 100 ⁇ g per day, with the preferred dosage amounts of from about 5 to 50 ⁇ g per day, for example about 10 to 25 ⁇ g.
  • the invention provides compositions that contain both a vitamin D 2 supplement and a vitamin D 3 supplement.
  • the vitamin D 3 supplement is present in a therapeutically effective amount while the vitamin D 2 supplement is present in a toxicity-reducing amount.
  • the vitamin D 3 supplement is present at an amount that, if given alone, would be expected to result in adverse effects or toxicity.
  • the compositions may comprise any of the vitamin D 2 supplements and/or vitamin D 3 supplements described above, in any of the ratios described above.
  • the compositions are a cumulative unit dose (total amount of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D 3 together) ranging from about 1 to 100 ⁇ g per unit dose, e.g.
  • compositions are a unit dose containing about 10, 25, 50, 75 or 100 ⁇ g of 25-hydroxyvitamin D 3 , and an additional toxicity-reducing amount of 25-hydroxyvitamin D 2 .
  • an amount of 25-hydroxyvitamin D 2 along with 25-hydroxyvitamin D 3 is included in a formulation and is orally administered daily to a human or animal in need of treatment.
  • an amount of 25- hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 is included in an isotonic sterile formulation suitable for intravenous administration, and is gradually injected thrice weekly into a human or animal in need of treatment.
  • kits of the invention comprise a container comprising a vitamin D 3 supplement, optionally in a therapeutically effective amount, with labeling instructions informing the patient that adverse effects related to administration of such vitamin D 3 supplement can be reduced by co-administration of a vitamin D 2 supplement.
  • the kits can further comprise a vitamin Da supplement, optionally in toxicity-reducing amount.
  • Figure 1 shows the results of analysis of total 25-hydroxyvitamin D levels in rats administered various combinations of 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 .
  • * signifies P ⁇ 0.05
  • ** signifies P ⁇ 0.001
  • *** signifies P ⁇ 0.0001 statistical significance.
  • Figure 2 shows the results of analysis of serum calcium levels in rats administered various combinations of 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 .
  • Figure 3 shows the results of analysis of C YP24 levels in the kidney of rats administered various combinations of 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 .
  • Figure 4 shows the results of analysis of 1,25-dihydroxyvitamin D 3 levels in rats administered various combinations of 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 .
  • Figure 5 shows the results of analysis of levels of a metabolite of 25- hydroxyvitamin D 2 in rats administered various combinations of 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 .
  • Figure 6 shows the results in a different study of analysis of serum calcium levels in rats administered various combinations of 25-hydroxyvitamin D 2 and 25- hydroxyvitamin D 3 .
  • the present invention relates to a method for dosing a subject, an animal or a human patient, in need of Vitamin D supplementation with sufficient 25-hydroxyvitamin D 2 along with 25-hydroxyvitamin D 3 in a combination to effectively and safely restore blood 25- hydroxyvitamin D levels to optimal levels (defined for human subjects and patients as > 30 ng/mL 25-hydroxyvitamin D), to maintain blood 25-hydroxyvitamin D levels at such optimal levels, to prevent a drop in blood 25-hydroxyvitamin D to suboptimal levels, and to prevent or treat secondary hyperparathyroidism.
  • optimal levels defined for human subjects and patients as > 30 ng/mL 25-hydroxyvitamin D
  • the methods, compositions and kits of the present invention involve reduction or elimination of toxicity associated with administration of one or more vitamin D 3 supplements, by co-administration of one or more vitamin D 2 supplements.
  • Co- administration of a vitamin D 2 supplement along with a vitamin D 3 supplement may result in reduced induction of catabolic enzymes such as CYP24, and therefore result in a more effective elevation in serum levels of total 25-hydroxyvitamin D than administration of either alone.
  • the ratio of vitamin D 3 supplement to vitamin D 2 supplement is at least 1: 1, 1.5:1, 2: 1, 3: 1, 5: 1, 6: 1, 7: 1, 8: 1, 9: 1, 10:1 , 15: 1, 20: 1, 30: 1, 40:1, 50: 1, 60: 1, 75: 1, 100:1 or more, based on the observation that 25-hydroxyvitamin D 2 appears to be catabolized more readily to 24, 25-dihydroxyvitamin D 2 while the 25-hydroxyvitamin D 3 is metabolized catabolized more readily to the active 1, 25-dihydroxyvitamin D 3 form.
  • Co-administration of a vitamin D 3 supplement and a vitamin D 2 supplement may permit administration of the vitamin D 3 supplement in amounts that would otherwise be considered close to, at or above the upper limit for chronic administration for no adverse effect, or its equivalent (divided into once, twice or three times weekly dosages) of more than approximately 1 ⁇ g/kg/day (based on the UL) of vitamin D 3 , or the equivalent (divided into once, twice or three times weekly dosages) of more than 2-6 ⁇ g/kg/day of 25-hydroxyvitamin D 3 , or the equivalent (divided into once, twice or three times weekly dosages) of more than 0.01 to 0.02 ⁇ g/kg/day of 1 , 25-dihydroxyvitamin D 3 .
  • unit dosage forms containing greater than 50 ⁇ g of vitamin D 3 , greater than 50 ⁇ g of 25-hydroxyvitamin D 3 ,or greater than 1 ⁇ g of 1, 25-dihydroxyvitamin D 3 are contemplated.
  • co-administration when used with respect to a vitamin D 2 supplement or a vitamin D 3 supplement means that the two agents are administered in a manner that permits them both to exert their respective pharmacological effects during an overlapping period of time.
  • the agents may be administered in the same formulation or in different formulations, at the same time or at different times, by the same route or by different routes.
  • co- administration may involve administration of a vitamin D 3 supplement at a time, e.g. within 6 hours, 8 hours, 12 hours, 24 hours (1 day), or 2 days, following the administration of a vitamin D 2 supplement when either the vitamin D 2 supplement or at least one or all metabolic products are detectable in serum.
  • co- administration may involve administration of a vitamin D 2 supplement at a time, e.g.
  • the patient may be given general instructions to take the vitamin D3 supplement one, two or three times per week and the vitamin D 2 supplement one, two or three times per week, so long as each vitamin D 2 supplement and vitamin D 3 supplement is taken at least once (or twice or three times) per week.
  • a therapeutically effective amount depends on the patient's condition and is an amount effective to achieve a desired clinical effect, e.g. to maintain a laboratory test value within the normal range or the recommended range for that patient's condition, or an amount effective to reduce the occurrence or severity of a clinical sign or symptom of disease.
  • a therapeutically effective amount is an amount effective on average to maintain serum 25-hydroxyvitamin D levels or 25-hydroxyvitamin D 3 levels at about 30 ng/mL (equivalent to about 75 nmol/L) or higher. Such levels may be maintained for an extended period, for example at least one month, at least three months, at least six months, nine months, one year, or longer.
  • a therapeutically effective amount is an amount effective on average to achieve at least a 15%, 20%, 25% or 30% reduction in serum parathyroid hormone levels (iPTH) from baseline levels without treatment.
  • a therapeutically effective amount is an amount effective on average to reach CKD stage-specific iPTH target ranges which for Stage 3 is 35- 70 pg/mL (equivalent to 3.85-7.7 pmol/L), for Stage 4 is 70-110 pg/mL (equivalent to 7.7- 12.1 pmol/L), and for Stage 5 is 150-300 pg/mL (equivalent to 16.5-33.0 pmol/L) (defined in K/DOQI Guideline No. 1).
  • "therapeutically effective" can refer either to the effective amount of vitamin D 3 supplement when administered alone, or to the effective amount of vitamin D 3 supplement when administered in combination with a vitamin D 2 supplement.
  • Vitamin D toxicity is meant to refer to the adverse effects suffered from excessive administration of 25-hydroxyvitamin D and excessively elevated 25-hydroxyvitamin D blood levels, including nausea, vomiting, polyuria, hypercalciuria. hypercalcemia, and hypeiphosphatemia.
  • toxicity is manifested by serum calcium rising above 10.2 mg/dL, and/or serum phosphorus rising above 4.6 mg/dL, and/or serum calcium x phosphorus product rising above 55, and/or urine calciumxreatinine ratio rising above 300 mg/24 hours.
  • Vitamin D insufficiency and deficiency is generally defined as having serum 25-hydroxyviiamin D levels below 30 ng/niL (equivalent to about 75 nmol/L) (National Kidney Foundation guidelines, NKF, Am. J. Kidney Dis. 42:S1-S2O2 (2003), incorporated herein by reference).
  • 25-hydroxyvitamin D 2 /25-hydroxyvitamin D 3 as used herein is intended to encompass 25-hydroxyvitamin D 2 , 25-hydroxyvitamin D 3 , or a combination thereof.
  • 25-hydroxyvitamin D is intended to refer to 25- hydroxyvitamin DT and 25-hydroxyvitamin D 3 collectively.
  • an assayed blood level of 25-hydroxyvitamin D will include both 25-hydroxyvitamin D 2 and 25- hydroxyvitamin D 3 , if present.
  • vitamin D? supplement refers to a precursor, analog or derivative of ergocalciferol, 25-hydroxyvitamin D? or 1,25-dihydroxyvitamin D 2 that retains the ability to reduce vitamin D toxicity associated with administration of a vitamin D 3 supplement.
  • vitamin D 3 supplement refers to a precursor, analog or derivative of vitamin D 3 (cholecalciferol), 25-hydroxyvitamin D 3 , or l ⁇ ,25- dihydroxy vitamin D 3 , including, l ⁇ -hydroxy vitamin D3, that activates the vitamin D receptor or that can be metabolically converted in a human to a compound that activates the vitamin D receptor.
  • any numerical value recited herein includes all values from the lower value to the upper value, i.e., all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application.
  • a concentration range or a beneficial effect range is stated as 1 % to 50%, it is intended that values such as 2% to 40%, 10% to 30%, or 1% to 3%, etc., are expressly enumerated in this specification. These are only examples of what is specifically intended.
  • AI Adequate Intake
  • ⁇ g micrograms
  • IU International Units
  • the Food and Nutrition Board of the Institute of Medicine has set the tolerable upper intake level (UL) for vitamin D at 25 ⁇ g (1,000 IU) for infants up to 12 months of age and 50 ⁇ g (2,000 IU) for children, adults, pregnant, and lactating women.
  • ULs are set at the maximum daily intake unlikely to result in adverse health effects for vitamin D. Long term intakes above the UL may increase the risk of adverse health effects.
  • ULs for vitamin D for infants, children and adults are shown below in Table 2.
  • compositions, methods and kits of the invention are useful for treating any subject in need of vitamin D supplementation, either prophylactically to prevent vitamin D insufficiency or deficiency, or therapeutically to replete low serum vitamin 25(OH)D levels to normal range or above.
  • the compositions and methods of the invention are also useful for preventing or treating secondary hyperparathyroidism resulting from low vitamin D levels.
  • serum 25(OH)D values less than 5 ng/mL indicate severe deficiency associated with rickets and osteomalacia.
  • 30 ng/mL has been suggested as the low end of the normal range, more recent research suggests that PTH levels and calcium absorption are not optimized until serum total 25(OH)D levels reach approximately 40 ng/mL.
  • subject includes humans, mammals (e.g., dogs, cats, rodents, sheep, horses, cows, goats), veterinary animals and zoo animals.
  • Patients in need of vitamin D supplementation include healthy subjects and subjects at risk for vitamin D insufficiency or deficiency, for example, subjects with stage 1, 2, 3, 4 or 5 chronic kidney disease; infants, children and adults that do not drink vitamin D fortified milk (e.g.
  • lactose intolerant subjects subjects with milk allergy, vegetarians who do not consume milk, and breast fed infants
  • subjects with rickets subjects with dark skin (e.g., in the U.S., 42% of African American women between 15 and 49 years of age were vitamin D deficient compared to 4% of white women); the elderly (who have a reduced ability to synthesize vitamin D in skin during exposure to sunlight and also are more likely to stay indoors); institutionalized adults (who are likely to stay indoors, including subjects with Alzheimer's disease or mentally ill); subjects who cover all exposed skin (such as members of certain religions or cultures); subjects who always use sunscreen (e.g., the application of sunscreen with an Sun Protection Factor (SPF) of 8 reduces production of vitamin D by 95%, and higher SPFs may further reduce cutaneous vitamin D production); subjects with fat malabsorption syndromes (including but not limited to cystic fibrosis, cholestatic liver disease, other liver disease, gallbladder disease, pancreatic enzyme deficiency, Crohn's disease,
  • phenobarbital, carbamazepine, and rifampin subjects taking medications that reduce absorption of vitamin D, including cholestyramine, colestipol, orlistat, mineral oil, and fat substitutes; subjects taking medications that inhibit activation of vitamin D, including ketoconazole: subjects taking medications that decrease calcium absorption, including corticosteroids; subjects with obesity (vitamin D deposited in body fat stores is less bioavailable); subjects with osteoporosis and/or postmenopausal women.
  • food consumption data suggest that median intakes of vitamin D for both younger and older women are below current recommendations; data suggest that more than 50% of younger and older women are not consuming recommended amounts of vitamin D.
  • optionally excluded from the methods of the invention are therapeutic treatment of subjects suffering from renal osteodystrophy (including osteomalacia and osteitis fibrosa cystica),
  • compositions and methods of the invention are useful for prophylactic or therapeutic treatment of vitamin D-responsive diseases, i.e., diseases where vitamin D, 25(OH)D or active vitamin D (e.g., 1, 25(OH) 2 D) prevents onset or progression of disease, or reduces signs or symptoms of disease.
  • vitamin D-responsive diseases include cancer (e.g., breast, lung, skin, melanoma, colon, colorectal, rectal, prostate and bone cancer).
  • 1,25(OH) ⁇ D has been observed to induce cell differentiation and/or inhibit cell proliferation in vitro for a number of cells.
  • Vitamin D-responsive diseases also include autoimmune diseases, for example, type I diabetes, multiple sclerosis, rheumatoid arthritis, polymyositis, dermatomyositis, scleroderma, fibrosis, Grave's disease, Hashimoto's disease, acute or chronic transplant rejection, acute or chronic graft versus host disease, inflammatory bowel disease, Crohn's disease, systemic lupus erythematosis, Sjogren's Syndrome, eczema and psoriasis, dermatitis, including atopic dermatitis, contact dermatitis, allergic dermatitis and/or chronic dermatitis.
  • autoimmune diseases for example, type I diabetes, multiple sclerosis, rheumatoid arthritis, polymyositis, dermatomyositis, scleroderma, fibrosis, Grave's disease, Hashimoto's disease, acute or chronic transplant rejection, acute or chronic graft
  • Vitamin D-responsive diseases also include other inflammatory diseases, for example, asthma, chronic obstructive pulmonary disease, polycystic kidney disease (PKD), polycystic ovary syndrome, pancreatitis, nephritis, hepatitis, and/or infection. Vitamin D-responsive diseases have also been reported to include hypertension and cardiovascular diseases.
  • cardiovascular diseases for example, subjects with atherosclerosis, arteriosclerosis, coronary artery disease, cerebrovascular disease, peripheral vascular disease, myocardial infarction, myocardial ischemia, cerebral ischemia, stroke, congestive heart failure, cardiomyopathy, obesity or other weight disorders, lipid disorders (e.g.
  • hyperlipidemia dyslipidemia including associated diabetic dyslipidemia and mixed dyslipidemia hypoalphalipoproteinemia, hypertriglyceridemia, hypercholesterolemia, and low HDL (high density lipoprotein)
  • metabolic disorders e.g. Metabolic Syndrome, Type Il diabetes mellitus, Type I diabetes mellitus, hyperinsulinemia, impaired glucose tolerance, insulin resistance, diabetic complication including neuropathy, nephropathy, retinopathy, diabetic foot ulcer and cataracts
  • thrombosis e.g. Metabolic Syndrome, Type Il diabetes mellitus, Type I diabetes mellitus, hyperinsulinemia, impaired glucose tolerance, insulin resistance, diabetic complication including neuropathy, nephropathy, retinopathy, diabetic foot ulcer and cataracts.
  • the invention includes compositions comprising oral, intravenous and topical formulations of 25-hydroxyvitamin Di and 25-hydroxyvitamin D;, and methods of administering such formulations to treat 25-hydroxyvitamin D insufficiency and deficiency without causing serious side effects associated with Vitamin D supplementation, namely Vitamin D toxicity.
  • compositions of the present invention comprise highly stable pharmaceutical formulations into which 25-hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 is incorporated for convenient daily oral administration.
  • the disclosed compositions produce sustained blood levels of 25-hydroxyvitamin D with dual unexpected benefits with continued regular administration over a prolonged period of time of unsurpassed effectiveness in restoring blood 25-hydroxyvitamin D to optimal levels, and unsurpassed safety relative to heretofore known formulations of Vitamin D or 25-hydroxyvitamin D.
  • sterile, isotonic formulations of 25- hydroxyvitamin D? combined with 25-hydroxyvitamin D 3 may be prepared which are suitable for intravenous administration.
  • Such formulations are prepared by dissolving 25- hydroxyvitamin D 2 and 25-hydroxyvitamin D 3 in absolute ethanol, propylene glycol or other suitable solvents, and combining the resulting solutions with surfactants, salts and preservatives in appropriate volumes of water for injection.
  • Such formulations can be administered immediately, or slowly from syringes via heparin locks or by addition to larger volumes of sterile solutions (e.g., saline solution) being steadily infused over time.
  • the dosage forms may also contain adjuvants, such as preserving or stabilizing adjuvants. They may also contain other therapeutically valuable substances or may contain more than one of the compounds specified herein and in the claims in admixture.
  • combinations of a vitamin D 2 supplement and a vitamin D 3 supplement together with other therapeutic agents can be orally or intravenously administered in accordance with the above described embodiments in dosage amounts of from 1 to 200 meg per day, with the preferred dosage total amounts from 5 to 100 meg per day. If the compounds of the present invention are administered in combination with other therapeutic agents, the proportions of each of the compounds in the combination being administered will be dependent on the particular disease state being addressed.
  • the concentration of total 25-hydroxyvitamin D at 120 hours post initial dose was determined in serum samples using a high-performance liquid chromatographic method using tandem mass spectrometry detection. The method was utilized to determine the individual concentrations of 25-hydroxyvitamin D 3 and 25-hydroxyvitamin D 2 in serum and the total was determined as a sum of the concentrations.
  • serum collected from animals was analyzed for changes in levels of 25-hydroxyvitamin D 3 , 25- hydroxyvitamin D 2 and their metabolites.
  • CYP24 induction was measured in kidney as follows: One eighth (1/8) of kidney was sliced and homogenized for RNA isolation using the TRIzol method. After cDNA synthesis, the levels of Cyp24 mRNA were evaluated, and normalized to Gapdh niRNA, using a specific CYP24 probe by real time RT-PCR.
  • FIG. 1 25-hydroxyvitamin D levels, shows the elevation in total serum 25- hydroxyvitamin D when rats are administered either 25-hydroxyvitamin D 3 either alone or in combination with the indicated dosing, daily for a period of 5 days.
  • Table 4 shown below, indicates observed findings upon gross necropsy of animals following the 5 day dosing study. Severe signs of toxicity (blood in the lungs) was observed only in the group of animals receiving the highest dose of 25-hydroxyvitamin D 3 (6 ⁇ g/kg) alone.
  • Dosing was carried out at similar times each day, within a three hour window of the time of last dose. Blood was collected at day 0 (the first day of treatment) for analysis, and animals were monitored twice daily. Animals from all groups were euthanized on day 5. 24 hours after the last dose, and blood was collected by cardiac puncture. All rats were subjected to an abbreviated necropsy.
  • Serum calcium levels of the rats at day 5 of treatment are displayed in Figure 6 and confirm the data described above for Example 1.
  • doses of 4 ⁇ g/kg or 8 ⁇ g/kg 25-hydroxyvitamin D 3 alone resulted in hypercalcemia
  • a combined dose of 8 ⁇ g/kg and 8 ⁇ g/kg 25-hydroxyvitamin D 3 with 25-hydroxyvitamin D 2 resulted in normal serum calcium levels, indicating that the inclusion of the 25-hydroxyvitamin D 2 was able to alleviate the toxicity associated with the 25-hydroxyvitamin D 3 .
  • 25-hydroxyvitamin D 2 The efficacy and safety of an oral preparation of 25-hydroxyvitamin D 2 is examined in a 3-month study of patients with advanced prostate cancer being treated with high-dose calcitriol once per week.
  • 25-hydroxyvitamin D 2 was formulated in soft-gelatin capsules.
  • Forty patients with advanced prostate cancer undergoing treatment with high-dose calcitriol and Docetaxel were divided into two equal groups.
  • group #1 receives between 2-20 meg 25-hydroxyvitamin D 2
  • group #2 receives placebo.
  • Prior to enrolling all subjects provide two fasting morning blood samples, separated by at least one week, to establish pre-treatment baseline values of serum calcium, plasma intact PTH, and serum 25-hydroxyvitamin D.
  • Increased laboratory mean values for serum calcium are expected to be observed in the placebo (control) group over the course of the study, however, much lower changes in serum calcium levels (e.g., no change or reduced increase) are expected to be observed in the treatment group.
  • Subjects in the treatment group receiving 25- hydroxyvitamin D 2 are expected to exhibit progressively increasing serum 25- hydroxyvitamin D levels during the first 2-3 months of dosing, reaching steady state levels thereafter.
  • Episodes of hypercalcemia, defined as serum calcium above 10.2 mg/dL are expected to be more frequently observed in the placebo group than in the treatment group.
  • Data from this study are expected to demonstrate that elevation in serum calcium in the treatment of prostate cancer patients with high-dose calcitriol can be controlled or alleviated altogether by adding 25-hydroxyvitamin D 2 to the treatment regimen.
  • the efficacy and safety of an intravenous 25-hydroxyvitamin D 3 /25- hydroxyvitamin D 2 combination in restoring serum 25-hydroxyvitamin D to optimal levels are examined in a 3-month study of patients with end-stage renal disease (ESRD) requiring regular hemodialysis and diagnosed with Vitamin D insufficiency.
  • the formulations examined in this study are aqueous isotonic and sterile solutions containing either 20 meg of 25-hydroxyvitamin D 3 alone (test preparation #1) or in combination with 10 mcg 25-hydroxyvitamin Oi (test preparation #2).
  • the subjects are randomly assigned to one of three treatment groups, and they begin thrice weekly dosing with the test preparation #1 or #2, or with a matching placebo.
  • All dosing occurs during regularly scheduled hemodialysis sessions and is accomplished by gradual injection (over a period of 1 to 5 minutes) into the blood exiting from the hemodialysis machine. Additional fasting blood samples and 24-hour urine collections are obtained from each subject at quarterly intervals for determination of serum calcium, plasma intact PTH and serum 25-hydroxyvitamin D. Throughout the study, all subjects adhere to a daily intake of approximately 1,000 to 1 ,500 mg of elemental calcium (from self-selected diets and calcium supplements, as needed) under the ongoing guidance of a dietician. At the conclusion of the study, the laboratory data are analyzed by treatment group and by test formulation after appropriate correction for baseline values.
  • All groups are expected to have comparable mean baseline values for serum 25- hydroxyvitamin D (range: 10.7 to 11.9 ng/mL), plasma intact PTH (range: 45.3 to 52.1 pg/mL) and serum calcium (range: 8.72 to 9.31 mg/dL). No significant changes in any of the laboratory mean values are expected to be observed in the placebo (control) group over the course of the study. Subjects in the both treatment groups receiving 25-hydroxyvitamin D 3 alone or the 25-hydroxyvitamin D 3 /25-hydroxyvitamin D 2 combination are expected to exhibit progressively increasing serum 25-hydroxyvitamin D levels during the first 3 months of dosing, reaching steady state levels thereafter.
  • Mean serum calcium is expected to increase significantly from baseline in the treatment group receiving 25-hydroxyvitamin D 3 , and is expected to be significantly higher than those observed in the placebo group.
  • Subjects in the treatment group receiving the 25-hydroxyvitamin D 3 /25-hydroxyvitamin D 2 combination are expected to exhibit serum calcium levels significantly lower than those observed for the 25- hydroxyvitamin D 3 -alone treatment group but not significantly different than those observed in the placebo group.
  • Episodes of hypercalcemia, defined as serum calcium above 10.2 mg/dL, are expected to be more frequently observed in the treatment group receiving only 25-hydroxyvitamin D 3 .

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US12/597,230 US11752158B2 (en) 2007-04-25 2008-04-25 Method of treating vitamin D insufficiency and deficiency
EP08837933A EP2148684B1 (en) 2007-04-25 2008-04-25 Method of treating vitamin d insufficiency and deficiency
PL08837933T PL2148684T3 (pl) 2007-04-25 2008-04-25 Sposób leczenia niedoboru i deficytu witaminy D
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US20100120728A1 (en) 2010-05-13
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US11752158B2 (en) 2023-09-12
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WO2009047644A3 (en) 2009-05-28
JP5444212B2 (ja) 2014-03-19
HK1205936A1 (en) 2015-12-31
PT2148684E (pt) 2013-04-19
CN104257667B (zh) 2019-06-04
EP2148684A2 (en) 2010-02-03
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CA2683628A1 (en) 2009-04-16
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