Classifications

• • 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
  • A61K31/33—Heterocyclic compounds
  • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
  • A61K31/337—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
  • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
  • A61K47/40—Cyclodextrins; Derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
  • A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
  • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
  • A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
  • A61K47/6949—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
  • A61K47/6951—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes using cyclodextrin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/0012—Galenical forms characterised by the site of application
  • A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/08—Solutions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K9/00—Medicinal preparations characterised by special physical form
  • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
  • A61K9/19—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents

Definitions

• the present invention is directed to a composition
• a composition comprising (a) cabazitaxel and (b) sulfobutyl ether beta cyclodextrin.
• Such composition exhibits unexpectedly desirable stability in aqueous media, thus permitting therapeutic dosages of the drug to be administered without need of ethanol and surfactants.
• cabazitaxel Due to its poor solubility in water, the commercial formulation of cabazitaxel (JEVTANA®) employs polysorbate 80 (a surfactant) as a solubilizer and ethanol as a diluent. Due to the presence of such surfactant and ethanol this formulation requires that a patient be premedicated with an antihistamine, a corticosteroid and an H 2 antagonist. Such formulation further requires a two-step preparation process prior to infusion into a patient. In the first step a vial containing cabazitaxel and an excipient must be mixed with another vial containing ethanol; in the second step, this mixed solution is then diluted with saline or 5% dextrose. According to its label, the JEVTANA® dosing solution must be used within eight hours at room temperature, or within 24 hour if refrigerated. Both time limits include infusion time of approximately 1 hour.
• the complexes are prepared as follows: docetaxel dissolved in ethanol is added into water solution of cyclodextrin via stirring, until docetaxel is completely dissolved; said solution is filtered in 0.2-04 ⁇ microporous membrane then ethanol is removed through reduced pressure to obtain the inclusion complex in a liquid form; or ethanol, followed by water is removed through reduced pressure, then dried to obtain the inclusion complex in a solid form.
• docetaxel dissolved in ethanol is added into water solution of cyclodextrin via stirring, until docetaxel is completely dissolved; said solution is filtered in 0.2-04 ⁇ microporous membrane then ethanol is removed through reduced pressure to obtain the inclusion complex in a liquid form; or ethanol, followed by water is removed through reduced pressure, then dried to obtain the inclusion complex in a solid form.
• the present invention is directed to a composition
• a composition comprising (a) cabazitaxel and (b) sulfobutyl ether beta cyclodextrin ("SBECD").
• the weight ratio of cabazitaxel to SBECD is between 1:30 and 1: 1000; preferably, such ratio is between 1:90 and 1:200.
• the composition of this invention comprises cabazitaxel and SBECD in weight ratio around 1: 133.
• composition may optionally further comprise additional components added to improve its pharmaceutical properties.
• an acid, a base, and/or a salt can be added to the composition to adjust the pH and the tonicity of the composition. It is particularly preferred that HC1, NaOH, citric acid and NaCl are used to adjust the pH and the tonicity of the composition.
• the composition is a sterile liquid aqueous solution suitable for administration by intravenous injection or infusion and comprises between 0.5% and 70% SBECD, preferably between 1% and 40% SBECD, and more preferably between 2% and 20% SBECD.
• composition of this invention is in the form of sterile solid lyophilizate or in the form of an aqueous solution comprising between 2% and 70% SBECD, preferably between 20% and 60%; both of which forms are suitable for storage.
• compositions of this invention may be prepared by mixing cabazitaxel with an aqueous solution of SBECD. Such compositions are typically mixed at room temperature, although higher or lower temperatures may be employed. The mixture is then typically filtered and stored. If desired the filtered solution may be freeze dried for storage.
• Example 1 Cabazitaxel solubility in aqueous SBECD
• a solution containing 2.02 mg/mL cabazitaxel in 20% aqueous SBECD was prepared by sequential dissolving SBECD in water, and cabazitaxel in the resulting solution, followed by filtration through a 0.22 ⁇ filter. Portions of the solution was subsequently diluted with water to form three solutions comprising 1%, 4.8% and 10% SBECD, respectively. The solutions were incubated at temperature 23 °C and at selected time points were analyzed using the HPLC. The results are presented in the table below. All solutions were stable.
• Example 5 The solution of the Example 3 was frozen quickly using dry ice. The frozen material was freeze dried. Example 5. Reconstitution of cabazitaxel composition in isotonic NaCl solution.
• mice Female Sprague-Dawley rats, 8 animals per group, received 1 hour i.v. infusion of solution of the Example 3, or solution comprising cabazitaxel, polysorbate 80, ethanol and water, equivalent to the commercial composition of cabazitaxel. Both compositions were administered at the dose 8 mg/kg. Blood samples were collected at 0.5, 1, 1.08, 1.25, 1.5, 2, 3, and 4 hours post beginning of the infusion; three samples from each animal were taken during the sampling. Plasma levels of cabazitaxel in each sample were determined using HPLC. The results are presented in the table below.
• mice were inoculated i.v. with murine 3LL cells (200,000) and treated with i.v. injection of 10 mg/kg of solution of the Example 3, or solution comprising cabazitaxel, polysorbate 80, ethanol and water, equivalent to the commercial composition of cabazitaxel, on day 1, 4 and 7 after inoculation. Saline injection was used in the control group. Mice body weights were recorded to evaluate tolerability to the treatment. No mortalities were recorded. The animals were sacrificed on day 18 and the metastases in lungs were counted. The results are presented in the table below.
• MDA-MB-231 cells (500,000 cells per site) in cell culture medium containing 30% Matrigel were subcutaneously inoculated at 2 sides of the flank (in the mid-flank) of nude Balb/c mice. After 16 days, when tumors reached 0.5-0.8 cm, the animals were randomly divided to three groups and treated on day 1, 4 and 7 with saline (control) or with 7.5 mg/kg of solution of the Example 3, or solution comprising cabazitaxel, polysorbate 80, ethanol and water, equivalent to the commercial composition of cabazitaxel. The tumor sizes and body weights were recorded during study, and tumors were removed and weighted upon study termination. The results are presented in the tables below.
• Human prostate carcinoma DU-145 cells (2,000,000 cells per site) in cell culture medium containing 50% Matrigel were subcutaneously inoculated at 2 sides of the mid-flank of SCID mice. After 21 days (when tumors reached 0.5-0.8 cm) the animals were randomly divided to three groups and treated on day 1, 4 and 7 after that with saline (control) or with 7.5 mg/kg of solution of the Example 3, or solution comprising cabazitaxel, polysorbate 80, ethanol and water, equivalent to the commercial composition of cabazitaxel. The tumor sizes and body weights were recorded. The results are presented in the tables below.

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• Health & Medical Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Veterinary Medicine (AREA)
• Medicinal Chemistry (AREA)
• Public Health (AREA)
• General Health & Medical Sciences (AREA)
• Pharmacology & Pharmacy (AREA)
• Life Sciences & Earth Sciences (AREA)
• Epidemiology (AREA)
• Engineering & Computer Science (AREA)
• Bioinformatics & Cheminformatics (AREA)
• Inorganic Chemistry (AREA)
• Dermatology (AREA)
• Organic Chemistry (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• General Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Preparation (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

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• 2013
  • 2013-12-23 DK DK13874815.7T patent/DK2934593T3/da active
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  • 2013-12-23 BR BR112015015202A patent/BR112015015202B8/pt active IP Right Grant
  • 2013-12-23 WO PCT/IB2013/003255 patent/WO2014122498A2/en not_active Ceased
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