WO2001051029A1 - Composition d'itraconazole et procede de preparation - Google Patents
Composition d'itraconazole et procede de preparation Download PDFInfo
- Publication number
- WO2001051029A1 WO2001051029A1 PCT/FR2001/000113 FR0100113W WO0151029A1 WO 2001051029 A1 WO2001051029 A1 WO 2001051029A1 FR 0100113 W FR0100113 W FR 0100113W WO 0151029 A1 WO0151029 A1 WO 0151029A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formulation according
- itraconazole
- copolymer
- ethylene oxide
- formulation
- Prior art date
Links
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- 229960004130 itraconazole Drugs 0.000 title claims description 30
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- 238000004519 manufacturing process Methods 0.000 title description 9
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- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 18
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims abstract description 14
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- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 11
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- 229930195725 Mannitol Natural products 0.000 claims description 3
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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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/4965—Non-condensed pyrazines
- A61K31/497—Non-condensed pyrazines containing further heterocyclic rings
-
- 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
- A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
- A61K9/146—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic macromolecular compounds
-
- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/4841—Filling excipients; Inactive ingredients
- A61K9/4866—Organic macromolecular compounds
Definitions
- the present invention relates to an oral formulation of Itraconazole whose solubility is improved, as well as to a process for its preparation based on a method by fusion of the active principle.
- a first means of improving the solubility of insoluble or very slightly soluble active principles consists in formulating them in a dispersion or a solid solution using hydrophilic agents.
- a second means of improving the solubility is the formation of microemulsion in vivo in contact with the physiological fluid using suitable excipients.
- the excipients preferably used in this case are mixtures of fatty acids polyglycosilés, commercialized under the name ® Gélucires. These excipients are solid at room temperature; but in molten form, they can be put into capsules with a suitable filling machine.
- thermoplastic excipients which are solid at room temperature
- solid dispersion dates back to the 1960s (Chem.
- the formulation of solid dispersions is identified as a means of improving the solubilization of insoluble active agents, a parameter limiting the bioavailability of the active principle.
- the use of surfactants or the micronization of particles are alternative methods.
- PEG polyethylene glycol
- mannitol East. Pharm. 1997; 40; 129-131; Drug Dev. Ind. Pharm. 1984; 10 (10); 1709-1724), xylitol (Int. J. Pharm. 1990; 66; 71-77; Int. J. Pharm. 1993; 90; 105-118), sorbitol (Drug Dev. Ind. Pharm. 1984; 10 (10); 1709-1724) used alone or as a mixture.
- - coating polymers are described in the literature as solid dispersing agents. There are, for example, cellulose derivatives, including hydroxypropylmethylcellulose (HPMC). Polymers with pH-dependent solubility, hydroxypropylmethylcellulose phthalate (HP-55 ® ), make it possible to obtain a controlled release of the active agent (Chem. Pharm. Bull. 1996; 44 (3); 568-571). - poloxamers are also used in this type of application (J. Pharm. Sci. 1976; 65; 1753-1758, Pharm. Dev. Technolo. 1997; 2; 403-407). Their action is improved by the gelling properties of certain grades and interactions with the functional groups of molecules.
- HPMC hydroxypropylmethylcellulose
- Surfactants can allow the transition to a solid solution state (Int. J. Pharm. 1991; 69; 53-62), depending in part on the critical micellar concentration measured with each hydrophilic polymer (Int. J. Pharm. 1996 ; 142; 189-198).
- adjuvants such as colloidal silica or a disintegrating agent may have a favorable or unfavorable effect on the solubilizing properties of the dispersions obtained (Int. J. Pharm. 1989; 54; 161 -170).
- EP 806 202 relates to the production of “stabilized lipophilic matrices” aiming to obtain a controlled release.
- the invention combines two distinct compounds, the mixture of which results in the stabilization of the matrix: a gelucire and an HPMC.
- the teaching of this document applies to all asset classes including antifungals.
- the process for obtaining comprises four stages: fusion of the fatty substance, incorporation of a stabilizing agent, incorporation of the active agents and excipients, placing in gelatin capsule at controlled temperature.
- WO 95/08983 and EP 670,715 describe a pharmaceutical composition capable of forming an in-situ microemulsion and comprising, in addition to an active ingredient, the following compounds: a lipid phase consisting of a mixture of glycerides and fatty acid esters, a surfactant, a co-surfactant and a hydrophilic phase.
- a lipid phase consisting of a mixture of glycerides and fatty acid esters
- a surfactant a co-surfactant and a hydrophilic phase.
- SMEDDS ® The originality of this form is linked to an increase in bioavailability for the active ingredients which are sparingly or not soluble, in the form of microemulsion.
- Patent applications describe the manufacture of coated microgranules.
- the principle is based on the spraying of a solution or a suspension of Itraconazole on neutrals, said solution possibly including a binding agent or a compound capable of modifying the solubility of the active principle.
- WO 94/05263 describes the preparation and the composition of microgranules of Itraconazole in a Fluidized Air Bed. The process includes a phase of mounting the asset on neutral (600-700 ⁇ m) by spraying of an organic solution (methylene chloride / ethanol) in which Pltraconazole is dissolved with a cellulose polymer, preferably HPMC. The immediate granules thus obtained are put into capsules.
- WO 98/42318 improves the manufacturing process described in WO
- WO 97/44014 describes the production of a solid dispersion obtained by melt extrusion.
- the advantage of this form is to offer a form "one day intake", independent of food intake.
- This form includes Itraconazole and one or more polymers.
- these polymers are cited cellulose derivatives (HPMC, methylcellulose), carboxymethylcellulose and its salts, polyethylene or polypropylene oxides and copolymers of ethylene oxide and propylene oxide (poloxamer).
- HPMC cellulose derivatives
- the polymer preferably used is HPMC.
- the mixture heated to a temperature of 120 ° C to 300 ° C is then extruded, ground and sieved.
- the final form is an immediate release tablet.
- Itraconazole is in an amorphous state and has increased bioavailability.
- FR 2 569 107 and FR 2 609 391 describe the preparation of bioadhesive suppositories of antifungal agents.
- This form includes a hydrocolloid (HPMC or sodium carboxymethylcellulose) and a suppository base with a low melting point. The principle is based on the formation of a water / oil emulsion. When the suppository melts, the two phases separate, the hydrocolloid is released with the antifungal agent and adheres to the membrane.
- One of the patents describes a form having a long-lasting action.
- WO 95/08993 describes an oral form comprising an antifungal agent included in a water-soluble cyclodextrin, hydroxypropyl- ⁇ - cyclodextrin (HP- ⁇ -CD), an acid solution in aqueous phase, and an alcoholic cosolvent (propylene glycol).
- an antifungal agent included in a water-soluble cyclodextrin, hydroxypropyl- ⁇ - cyclodextrin (HP- ⁇ -CD), an acid solution in aqueous phase, and an alcoholic cosolvent (propylene glycol).
- the objective of the present invention is to improve the acceptability, the masking, the bioavailability and the stability of an Itraconazole formulation.
- WO 93/19061 and WO 94/16733 propose the preparation of a highly soluble inclusion complex containing a cyclodextrin, an active ingredient and an acidic compound.
- the cyclodextrin can be a ⁇ , ⁇ or ⁇ -cyclodextrin, a HP- ⁇ -CD, dimethyl- ⁇ -CD or methylated ⁇ -CD.
- WO 98/55148 describes the preparation of an Itraconazole-based composition with high bioavailability, by adding a water-soluble acid compound and a water-soluble organic solvent.
- One way of increasing the solubility of an active ingredient such as Itraconazole is the formation of a solid dispersion obtained by coprecipitation of the active ingredient and of a hydrophilic polymer.
- WO 97/04749 describes the preparation of a solid dispersion of medicinal agents in a hydrophilic transport agent.
- the active ingredient is dissolved in a volatile organic solvent comprising a very hydrophilic cyclic amide (PVP), then the solution is evaporated to dryness (LAF) in order to obtain a coprecipitate.
- a nonionic surfactant (Polysorbate 80 ® , Crumophor ® ) can be added to the mixture.
- the active ingredient is present at a concentration of between 5 and 20% (w / w). The kinetics of dissolution depend on the content of the active ingredient in the co-precipitate.
- WO 99/33467 describes according to the same procedure, the production of a solid dispersion of Itraconazole and of a hydrophilic polymer.
- EP 422 290 relates to a semi-solid oral form having the consistency of "pudding".
- Formula includes non-aqueous liquid
- WO 96/39835 relates to the manufacture of Itraconazole microspheres making it possible to increase its bioavailability.
- the solvents used are volatile organic acids.
- WO 96/39835 also describes the preparation of microspheres.
- WO 98/52547 describes the preparation of microspheres using a polymer insoluble in water.
- the outer layer of these microspheres is composed of a cationic polymer.
- WO 98/57967 relates to a manufacturing process making it possible to obtain Itraconazole in an amorphous form, with increased solubility.
- the active ingredient is in the form of particles of size between 0.1 and 10 ⁇ m.
- the preparation method includes dissolving the active ingredient in an organic solvent, then nebulizing it in a suitable granulator or dryer. The active ingredient is then included in a pharmaceutical composition.
- EP 625 899 describes the preparation of Itraconazole liposomes.
- the formulation which is the subject of the present invention is a solid dispersion of Itraconazole and of a hydrophilic polymeric excipient, characterized in that it has a percentage of dissolution in vitro greater than 40%, preferably greater than 60%, after 2 hours, measured in a continuous flow cell at pH 1.2 D, at a flow rate of 16 ml / mim.
- the hydrophilic polymeric excipient is advantageously a copolymer of ethylene oxide and propylene oxide, for example Poloxamer 188, or a mixture of copolymer of ethylene oxide and of copolymer of propylene oxide.
- Poloxamers are a group of substances endowed with surfactant properties, the use of which makes it possible to increase the solubility and the bioavailability of insoluble active principles, or the increase in contact time between the preparation and an absorption site specific to the selected molecule.
- poloxamers are defined as synthetic copolymers of ethylene oxide and propylene oxide, represented by the following formula:
- Each type of poloxamere is characterized by its number of ethylene oxide units (a), its number of propylene oxide units (b), and by the content of ethylene oxide units (a) expressed percentage.
- the poloxamere preferentially used is Poloxamere 188, defined in the Pharmacopoeia
- the active ingredient is preferably in amorphous form.
- the copolymer ethylene oxide / propylene oxide / Itraconazole mass ratio or of the mixture of ethylene oxide copolymer and propylene oxide / Itraconazole copolymer may be between 1/18 and 18/1 , preferably between 5/1 and 1/1, more preferably still equal to approximately 3/1.
- Itraconazole represents between 5 and 95% (w / w), preferably between 10 and 40% (w / w), more preferably 20% (w / w) of the composition.
- the formulation of the invention may contain a second non-polymeric excipient chosen from mannitol, xylitol, sorbitol, lactitol, maltitol and their mixtures. Sorbitol is preferred.
- the formulation contains both sorbitol and a copolymer of ethylene oxide and propylene oxide or a mixture of copolymer of ethylene oxide and copolymer of propylene oxide. Sorbitol and copolymers of ethylene oxide and propylene oxide are capable of forming solid dispersions with insoluble active ingredients.
- the combination of the two excipients in the form of a solid dispersion makes it possible to obtain a speed of solubilization greater than the sum of the speeds of solid dispersions based on each excipient taken separately. It is not an addition of the effects of the excipients, but a synergistic effect of the combination of the two to improve the solubility of Itraconazole.
- Sorbitol represents 5 to 50% (w / w), preferably 10 to 30% (w / w), more preferably about 20% (w / w) of the composition.
- the formulation may also contain an adjuvant chosen from a surfactant, an acidifying agent, an antioxidant agent or their mixtures.
- It preferably contains a surfactant, such as sodium lauryl sulfate, an acidifying agent, such as citric acid and an antioxidant agent.
- a surfactant such as sodium lauryl sulfate
- an acidifying agent such as citric acid and an antioxidant agent.
- the final form is a capsule containing the solid dispersion in multiparticulate or monolithic form, preferably monolithic.
- the present invention also relates to a process for preparing the formulation described above.
- This preparation process includes a step of melting Itraconazole.
- the fusion of the active principle allows the passage from the crystalline state to the amorphous state of the active principle.
- the active principle and the excipients are melted and the solution obtained is kept under stirring in a feed hopper. We then proceed to direct filling by gravity of capsules and solidification of the dispersion by cooling to controlled temperature.
- the final form is a capsule containing the solid dispersion in monolithic form. According to this process, the final form is obtained without additional shaping step, unlike Melt extrusion or nebulization which require formulating a tablet.
- This preparation process does not require the use of organic solvents.
- the active principle and the molten excipients are cooled. The mass obtained is ground and the powder is poured into capsules.
- the final form is a capsule containing the solid dispersion in multiparticulate form.
- FIG. 1 shows the dissolution profiles of the formulation of Example 1 (curve 1) and the prior art specialty Sporanox ® (curve 2).
- FIG. 2 shows the dissolution profiles of the formulations of Example 1, Example 2 and the specialty Sporanox ®
- FIG. 3 shows the dissolution profiles of the formulation of Example 3 and the specialty Sporanox ® (respectively curves 1 and 2).
- Example 1 The present invention is illustrated by the following examples with reference to the figures.
- Example 1 The present invention is illustrated by the following examples with reference to the figures.
- a dispersion of Itraconazole is prepared by combining sorbitol and the poloxamer as hydrophilic agents in a poloxamer / sorbitol / ltraconazole ratio of 3/1/1.
- Curves 1 and 2 of FIG. 1 respectively represent the dissolving profiles of the formulation of Example 1 and of the prior art marketed by Janssen under the brand name Sporanox ® 100 mg.
- Sodium lauryl sulfate (LSNa) and citric acid are tested as adjuvants in the solid sorbitol / poloxamer / ltraconazole dispersion of Example 1.
- Citric acid is added to the dispersion as an acidifying agent.
- the pKa of Itraconazole is low so that it is ionized at acidic pH.
- the solubility of Itraconazole is slightly higher in acid pH.
- Itraconazole is found at a content of 20% (w / w).
- the three batches have a faster dissolution profile than the reference product Sporanox ® (see Figure 2).
- 2 shows the dissolution profiles of lots 1, 2A and 2B and that of the art Sporanox ® (curves 1-4, respectively).
- Example 1 has a higher dissolution rate than the batches of Example 2 including an adjuvant.
- Example 3 Capsule testing.
- a semi-solid capsule form is prepared by direct filling of the preparation.
- the results obtained are shown in Figure 3.
- the curves 1 and 2 represent the dissolution profiles of lot 3 and Sporanox ® specialty.
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AU2001231895A AU2001231895A1 (en) | 2000-01-14 | 2001-01-15 | Itraconazole composition and production method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR00/00455 | 2000-01-14 | ||
FR0000455A FR2803748A1 (fr) | 2000-01-14 | 2000-01-14 | Composition d'itraconazole et procede de preparation |
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WO2001051029A1 true WO2001051029A1 (fr) | 2001-07-19 |
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PCT/FR2001/000113 WO2001051029A1 (fr) | 2000-01-14 | 2001-01-15 | Composition d'itraconazole et procede de preparation |
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AU (1) | AU2001231895A1 (fr) |
FR (1) | FR2803748A1 (fr) |
WO (1) | WO2001051029A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1312358A1 (fr) * | 2001-11-16 | 2003-05-21 | SHERMAN, Bernard Charles | Compositions pharmaceutiques solides pour l'administration orale contenant de l'itraconazole |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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GB0015239D0 (en) * | 2000-06-21 | 2000-08-16 | Biochemie Gmbh | Organic compounds |
PT1438960E (pt) * | 2003-01-14 | 2007-06-19 | Cimex Pharma Ag | Composição de itraconazole disperso num polímero hidrofílico possuindo biodisponibilidade melhorada |
FR2857591B1 (fr) * | 2003-07-17 | 2007-11-02 | Ethypharm Sa | Particules comprenant un principe actif sous forme de co-precipite |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997004749A1 (fr) * | 1994-07-26 | 1997-02-13 | Laboratoires Effik | Procede de preparation de formes pharmaceutiques seches et les compositions pharmaceutiques ainsi realisees |
WO1997018839A1 (fr) * | 1995-11-23 | 1997-05-29 | Janssen Pharmaceutica N.V. | Melanges solides de cyclodextrines prepares par fusion-extrusion |
WO1997044014A1 (fr) * | 1996-05-20 | 1997-11-27 | Janssen Pharmaceutica N.V. | Compositions antifongiques avec biodisponibilite amelioree |
WO1999033467A1 (fr) * | 1997-12-31 | 1999-07-08 | Choongwae Pharma Corporation | Procede et composition d'une preparation orale d'itraconazole |
WO2000000179A1 (fr) * | 1998-06-27 | 2000-01-06 | Won Jin Biopharma Co., Ltd. | Preparation a dispersion solide d'un medicament faiblement hydrosoluble contenant de l'huile, un acide gras ou leurs melanges |
-
2000
- 2000-01-14 FR FR0000455A patent/FR2803748A1/fr not_active Withdrawn
-
2001
- 2001-01-15 WO PCT/FR2001/000113 patent/WO2001051029A1/fr active Application Filing
- 2001-01-15 AU AU2001231895A patent/AU2001231895A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997004749A1 (fr) * | 1994-07-26 | 1997-02-13 | Laboratoires Effik | Procede de preparation de formes pharmaceutiques seches et les compositions pharmaceutiques ainsi realisees |
WO1997018839A1 (fr) * | 1995-11-23 | 1997-05-29 | Janssen Pharmaceutica N.V. | Melanges solides de cyclodextrines prepares par fusion-extrusion |
WO1997044014A1 (fr) * | 1996-05-20 | 1997-11-27 | Janssen Pharmaceutica N.V. | Compositions antifongiques avec biodisponibilite amelioree |
WO1999033467A1 (fr) * | 1997-12-31 | 1999-07-08 | Choongwae Pharma Corporation | Procede et composition d'une preparation orale d'itraconazole |
WO2000000179A1 (fr) * | 1998-06-27 | 2000-01-06 | Won Jin Biopharma Co., Ltd. | Preparation a dispersion solide d'un medicament faiblement hydrosoluble contenant de l'huile, un acide gras ou leurs melanges |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1312358A1 (fr) * | 2001-11-16 | 2003-05-21 | SHERMAN, Bernard Charles | Compositions pharmaceutiques solides pour l'administration orale contenant de l'itraconazole |
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AU2001231895A1 (en) | 2001-07-24 |
FR2803748A1 (fr) | 2001-07-20 |
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