WO2011093810A2 - Dry powder pharmaceutical composition comprising tiotropium and mometasone - Google Patents

Dry powder pharmaceutical composition comprising tiotropium and mometasone Download PDF

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Publication number
WO2011093810A2
WO2011093810A2 PCT/TR2011/000012 TR2011000012W WO2011093810A2 WO 2011093810 A2 WO2011093810 A2 WO 2011093810A2 TR 2011000012 W TR2011000012 W TR 2011000012W WO 2011093810 A2 WO2011093810 A2 WO 2011093810A2
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WO
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Prior art keywords
dry powder
capsule
particle size
mean particle
powder form
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PCT/TR2011/000012
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French (fr)
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WO2011093810A3 (en
Inventor
Bilgic Mahmut
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Bilgic Mahmut
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Priority claimed from TR2010/00619A external-priority patent/TR201000619A2/en
Priority claimed from TR2010/00730A external-priority patent/TR201000730A2/en
Application filed by Bilgic Mahmut filed Critical Bilgic Mahmut
Publication of WO2011093810A2 publication Critical patent/WO2011093810A2/en
Publication of WO2011093810A3 publication Critical patent/WO2011093810A3/en
Priority to US13/531,972 priority Critical patent/US8834931B2/en

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    • 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
    • A61K9/007—Pulmonary tract; Aromatherapy
    • A61K9/0073—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy
    • A61K9/0075—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy for inhalation via a dry powder inhaler [DPI], e.g. comprising micronized drug mixed with lactose carrier particles
    • 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
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/439—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom the ring forming part of a bridged ring system, e.g. quinuclidine
    • 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
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • 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
    • A61K9/145—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 compounds

Definitions

  • the present invention relates to a pharmaceutical composition in dry powder form comprising tiotropium and mometasone and/or their pharmaceutically acceptable derivatives as active agents so as to be used in the treatment of respiratory tract diseases especially in asthma and chronic obstructive pulmonary disease (COPD), and the delivery of this pharmaceutical composition.
  • a pharmaceutical composition in dry powder form comprising tiotropium and mometasone and/or their pharmaceutically acceptable derivatives as active agents so as to be used in the treatment of respiratory tract diseases especially in asthma and chronic obstructive pulmonary disease (COPD), and the delivery of this pharmaceutical composition.
  • COPD chronic obstructive pulmonary disease
  • bronchia are the channels which function to distribute the inhaled air into the lung tissues.
  • stimulants such as allergen, infection, good and bad smell, smoke, genetic factors and exercise cause contractions in the airway muscles (bronchoconstruction) and/or excessive secretion in glands and results in contractions in the airway; hence, respiration gets more difficult as the inhaled air cannot be exhaled.
  • Corticosteroids which are used in the treatment of asthma and COPD are synthetic and strong anti-inflammatory drugs that are similar to natural corticosteroid hormones produced by adrenal glands. They prevent both the transcription of the inflammatory gene and the activation of the anti-inflammatory gene. They are known to be the most effective drug in the treatment of asthma.
  • Mometasone froate which was first described in the patent application US4472393, is a corticosteroid having the chemical name (1 l ,16a)-9,21-Dichloro-l 1 -hydroxy- 16- methyl-3,20 dioxopregna-l,4-diene-17-yl-2-furoate.
  • Corticosteroids are not preferred in acute asthma crises as they do not have rapid onset of action. Since inhaled corticosteroids may prevent growth in children, they are advised to be used in the lowest possible amount. Long-term use of corticosteroids may cause cataract and glaucoma. In addition, they may cause some serious side-effects such as osteoporosis, high cholesterol, edema, encepholalgia, weight gain, insomnia and some skin problems. 1 000012
  • Anticholinergics are the other active agents which are utilized in the treatment of respiratory disorders. Anticholinergics affect muscarinic receptors and prevent the obliteration in the bronchia due to excessive secretion. These drugs are categorized into two groups as long-acting and short-acting. Short-acting anticholinergics including ipratropium bromide and oxitropium bromide have an onset of action of 15 minutes and their duration of action is 6-8 hours. The long- acting anticholinergic agent is tiotropium.
  • Tiotropium having the chemical name (1R, 2R, 4S, 5S, 7S)-7-[(hydroxidi-2- thienylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo [3.3.1.0 2 ' 4 ] nonane, was first described in the patent application EP0418716. Tiotropium's onset of action is 20 minutes but its duration of action is 24 hours. Thus, it is enough to take it once a day. Xerostomia, blurred vision, glaucoma and dry cough are its side-effects.
  • combination drugs in the treatment of respiratory diseases such as asthma and COPD is very effective particularly in decreasing asthma attacks. It is possible that the severity or occurrence possibility of the abovementioned side effects decreases as the active substances that are used in combinations are more effective at lower doses compared to the active substances used alone.
  • the medicaments used in the formulations should be selected in a way to give the best combination and furthermore, they should be in the most stable form.
  • the compositions comprising them should be formulated in such a way that the composition is stable and also it reaches to the target area in the most efficient way.
  • the inventor has found that therapeutic benefits are obtained through the use of the combination comprising of tiotropium bromide with water content less than or equal to 2.5%, and mometasone furoate together in dry powder form for simultaneous or sequential administration in the prevention or treatment of respiratory diseases.
  • the amount of active agents used in the composition is carefully adjusted in order to prevent the side effects that might arise from these agents and it was seen that the adhesive force between the particles forming the composition is reduced and hence, the amount of inhaled particles and the efficacy of the formulation increases in addition to observing minimum side effects, when tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate present in the composition is used in an amount such that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight.
  • the particle size of the agents should be adjusted. Although large particle size provides ease in the manufacture of the dry powder, it may accumulate in throat and lead to insufficient intake of the medicament. Very fine particles, on the other hand, may reach the lungs. However, they might not have a good flow property, which causes problems in providing dose accuracy in turn. To prevent these problems, the active agents should have an optimum average particle size. The inventors have found that tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate combination wherein the mean particle size of the active agents is in the range of 1.5 to 4.5 ⁇ reaches the lungs effectively and also no problems related to flow properties of the dry powder are observed.
  • mean particle size refers to particles wherein the particle size of 50% of the total number of particles is less than the average particle size.
  • the present invention is related to dry powder formulations comprising a combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate are present in the composition in an amount that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight and wherein the mean particle size of the active agents (i.e.
  • tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 ⁇ .
  • the drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate may also contain effective amounts of excipients and/or additional agents apart from active agents.
  • the dry powder formulation comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is transmitted to the patient in dry powder form.
  • Said dry powder formulations also contain some physiologically acceptable excipients along with the active agent. These excipients can be monosaccharides (glucose, etc.), disaccharides (lactose, saccharose, maltose, etc.), oligosaccharides and polysaccharides (dextran, etc.), polyalcohols (sorbitol, mannitol, xylitol, etc.), salts (sodium chloride, calcium carbonate, etc.) or a mixture thereof.
  • excipients can be monosaccharides (glucose, etc.), disaccharides (lactose, saccharose, maltose, etc.), oligosaccharides and polysaccharides (dextran, etc.), polyalcohols (sorb
  • compositions according to present invention in other words in compositions comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 ⁇ and wherein tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate are present in the composition in an amount that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight, using lactose as the one and only carrier provides optimum homogeneity and flow properties to the dry powder and this way dose accuracy is maintained.
  • lactose is used as the one and only carrier in dry powder formulations comprising combinations of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form.
  • lactose plays an important role in delivery of the medicament to the target area, i.e. lungs, effectively in compositions according to present invention. It was found that when lactose having a mean particle size less than or equal to 100 ⁇ is used in compositions comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 ⁇ and wherein said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively, the adhesive forces present between the lactose particles and the active agents having a mean particle size in the range of 1.5 to 4.5 ⁇ are minimized and thus, an effective inhalation of the active agents takes place.
  • the present invention provides a composition comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier.
  • Lactose which has a mean particle size less than 100 ⁇ is preferably used as a mixture of particles which have two different mean particle sizes. Accordingly, lactose which has a mean particle size less than 100 ⁇ can be present as a mixture of particles having a mean particle size less than 10 ⁇ (finer) and particles having a mean particle size in the range of 10 ⁇ to 100 ⁇ (coarser). The inventors have observed that when lactose which has two different mean particle sizes is used, the adhesive force between the active agents and lactose is even less.
  • the ratio between the finer lactose particles which have a mean particle size less than 10 ⁇ and the coarser lactose particles which have a mean particle size in the range of 10 ⁇ to 100 ⁇ is in the range of 20:80% and 40:60% by weight.
  • the amount of pharmaceutically acceptable carrier is preferably in the range of 0-50 mg.
  • the finer lactose particles have a mean particle size less than 10 ⁇ , preferably between 2 ⁇ and 8 ⁇ and the coarser lactose particles have a mean particle size less than 100 ⁇ , preferably between 30 ⁇ and 80 ⁇ .
  • the medicament composition of the present invention is in dry powder form and it is inhaled via dry powder inhalers. Accordingly, the medicament can be inhaled from a reservoir containing dry powder, a blister pack in which many blisters are placed in an order or a capsule. Among these, the inhalers that enable the intake of a single dose in an accurate manner were found to give the best results. This condition is provided by the dosage forms wherein each dose of the medicament is stored in a single unit of dosage form. Accordingly, the medicament combination according to the present invention is stored in blister packs consisting of blisters or capsules and is inhaled via dry powder inhalation devices where blisters or capsules are used.
  • the inventor has surprisingly found that administering the dry power drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier as stored in a blister pack or capsule via a dry powder inhaler in order to prevent and treat respiratory diseases provides the transmission of the exact and the effective dose to the target area and elimination and/or alleviation of the known side effects of the therapeutic agents. Hence, maximum therapeutic benefit is provided due to the efficacy of the transmission method.
  • the present invention provides a dry powder drug comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and 11 000012
  • lactose which has mean particle size less than 100 ⁇ is used as carrier which realizes a simultaneous inhalation from the blister pack or capsule that can guarantee a single dose intake at once in order to achieve dose sufficiency.
  • the present invention provides inhalation of the dry powder drug comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier via a simple, low cost, trustable dry powder inhaler.
  • the present invention provides a drug that provides to realize the use of a composition comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier as stored together in a peelable blister or pierceable capsule pack in the treatment of respiratory diseases such as asthma and COPD.
  • the inventors have found that by storing the dry powder medicament pertaining to the present invention in blister packs comprising blisters and capsules which have the specified properties pertaining to the present invention; • equal dose intake is provided in each use as the dry powder formulation is filled into the blisters or capsules with a good dosage accuracy in the factory after the manufacture,
  • the drug is transmitted to the target area, which is the lungs, without absorbing moisture as the blister or capsule pertaining to the present invention is peeled/torn/pierced immediately before use,
  • devices containing blisters or capsules provide ease of use to the patients as they are small in size resulting from the fact that they work with simple mechanical components compared to other devices.
  • the present invention relates to a delivery method of a drug composition
  • a drug composition comprising a composition of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier which is particularly used in the treatment of people suffering respiratory diseases such as asthma, COPD and allergic rhinitis, as stored in a blister or capsule package via a dry powder inhaler.
  • the piercing components which exist in the device to prepare the dry powder drug carried in a capsule for inhalation, pierce the capsule when the device is triggered and the dry powder drug kept in the capsule becomes ready for inhalation. After the inhalation is completed, the empty capsule is ejected from the device and a new capsule is placed immediately before the following inhalation takes place.
  • the capsule package which is preferred to be used in scope of the present invention, consists of two intertwining parts.
  • the inventors have found that the ideal inhalation conditions are achieved when the volume of the capsule, which comprises the dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier mometasone furoate, is in the range of 0.1 to 0.52 ml, preferably in the range of 0.1 to 0.45 ml, more preferably in the range of 0.15 to 0.42 ml.
  • the capsule that is used to store and transmit the combination comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier is characterized in having a cavity volume in the range of 0.1 to 0.52 ml, preferably 0.1 to 0.45 ml, more preferably in the range of 0.15 to 0.42 ml.
  • the capsule package which has high protection against moisture and other negative external factors has a moisture rate between 10%-20%, preferably 15%-20%.
  • both the active composition is protected from external factors and the probability of moisture arising from the capsule's own structure are prevented.
  • the most effective transmission to the patient is enabled by preventing the agglomeration of the dry powder.
  • the capsule which is preferred to be used in scope of the present invention, can be made of a substance chosen from a group including gelatine, chitosan, starch and/or starch derivatives, cellulose and/or cellulose derivatives or synthetic polymers as well as consisting intertwined upper and lower parts. These upper and lower parts of said capsule can be produced of identical or different materials.
  • the capsule material can be selected from, but not limited to, a group comprising hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose.
  • the capsule material can be selected from, but not limited to, a group including polyethylene, polyetheleneteraphtalate, polycarbonate or polypropylene.
  • capsule material used in the present invention is gelatine
  • additional agents such as polyethylene glycol, sorbitol, glycerol, propylene glycol, polyethylene oxide - polypropylene oxide block copolymers and/or other polyalcohols or polyethers at different molecular weights can be added into it.
  • the present invention is characterized in that the capsule cavity used to provide an effective inhalation of the dry powder medicament is filled up to 0.01% to 25% of its total volume, preferably 0.1 to 20% of its total volume, more preferably 0.5 to 17% of its total volume.
  • the present invention comprises dry powder formulations containing tiotropium and mometasone furoate and/or pharmaceutically acceptable derivatives and their administration to patients from a capsule having a total cavity volume in the range of 0.1 to 0.52 ml and wherein the capsule cavity is filled up to 0.01% to 25% of the total volume, via a dry powder inhaler.
  • the capsule pack pertaining to the present invention can be in any color or shape as long as it has the properties described above.
  • the capsule or the blister pack which comprises the formulation pertaining to the present invention, can be used with any dry powder inhalation device, for example with devices as described in the patent applications numbered TR2008/03522, TR2008/03523, TR2010/03091 , TR2010/04311.
  • blister packs can be used as the package for the dry powder medicament according to the invention.
  • Blister packages can be a) torn b) pierced or c) peeled to be opened according to the structure of the device and the blister.
  • the inventors have found that it is difficult to use dry powder inhalers which contain pierceable or tearable blister packs for patients as these devices require additional components which increase the size, volume and the complexity of the device.
  • the amount of uninhaled dry powder formulation remaining in the blister cavity increases due to the roughness resulting from being torn and therefore, the rate of utilization from the present dry powder formulation decreases in tearable blisters.
  • the amount of dry powder remaining in the blister cavity decreases as said dry powder combination is transmitted much more effectively with a high discharge capacity in the case that peelable blisters are used.
  • the dry powder medicament pertaining to the present invention can be carried in peelable blister packages.
  • Blister packs are comprised of orderly placed blisters each of which contains minimally one dose of the dry powder drug.
  • the blister pack or one of the blisters in the pack is peeled and the drug in dry powder form is prepared for inhalation.
  • the cavity volume of the blisters that are arranged side by side in a certain order on the blister pack which provides to carry and store the drug in dry powder from is 17 to 30 mm 3 , preferably 18 to 23 mm 3 , most preferably 19 to 21 mm 3 .
  • the cavity volume of the blisters pertaining to the present invention which provide to transmit and store the dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier is in the range of 17-30 mm 3 , preferably in the range of 18-23 mm 3 , most preferably in the range of 19-21 mm 3 and each blister cavity having the volume described above is filled up to 25-100 %, preferably up to 70-100 %, most preferably up to 90-100 % of said volume in order to meet the specified needs for an effective inhalation.
  • the lid and the base sheets of said blister pack constituted by the blisters having the specified properties, in which the drug in dry powder form pertaining to the present invention is stored, are closed very tightly by any suitable method to provide impermeability.
  • the lid and the base sheets constituting the blister package consist of several layers.
  • Polymeric layers, aluminum foil and preferably Aclar® fluoropoylmer film are among the layers that form the lid and the base sheet.
  • Aclar® fluoropolymer film is a polymeric film which is used in blister packs and provides excellent moisture barrier. This chemically inert polymeric film does not cause any change in the taste of the formulation when it is in contact with the dry powder formulation. In addition, it easily constitutes a layered structure with the other polymeric layers which are composed of various polymers. It is appropriate to be transacted with heat.
  • desiccant agents are added to the polymeric layers to preserve the stability of the dry powder formulation stored in blisters that are arranged in an order on the blister package. Silica gel, zeolite, alumina, bauxite, anhydrous calcium sulfate, activated carbon and clay which have the property of water absorption can be given as examples to desiccant agents.
  • the thickness of the aluminum foil that is used in the lid and the base sheets of the blister pack is chosen to be in the range of 10 to 40 ⁇ , preferably of 15 to 30 ⁇ .
  • the polymeric layers in the lid and the base sheets of the blister pack mentioned in the present invention are composed of the same or different polymers.
  • the thickness of these polymeric layers varies according to the type of the polymeric substance used and its properties. Therefore, the thickness of the polymeric layer varies in the range of 15-60 ⁇ , preferably of 20-35 ⁇ depending on the type of the polymer used.
  • the blisters which constitute the blister pack in which the dry powder drug pertaining to the present invention is stored can be in any shape as long as they have the properties described above.
  • the dry powder particles Due to the electrostatic interactions between the dry powder particles and the inside layer of the blister cavity or the capsule material which is in contact with the dry powder formulation, the dry powder particles mainly adhere to said inside layer of the blister cavity or said capsule material. Since some uninhaled dry powder formulation is remained in the blister cavity or the capsule during inhalation, sufficient amount of the dry powder formulation for an effective therapy cannot reach to the lungs. Therefore, the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material.
  • antistatic material refers to a material which eliminates the buildup of static electricity.
  • the antistatic material used herein encloses a material which is antistatic itself or which is not antistatic itself but contains antistatic agent(s).
  • an antistatic agent is used for treatment of the layer or their surfaces in order to reduce or eliminate the buildup of static electricity generally caused by the triboelectric effect (charge generation by friction). Its role is to make the surface or the material itself slightly conductive, either by being conductive itself, or by absorbing moisture from the air. Therefore, some humectants can be used.
  • the molecules of an antistatic agent often have both hydrophilic and hydrophobic areas similar to those of a surfactant. The hydrophobic side interacts with the surface of the material while the hydrophilic side interacts with the air moisture and binds the water molecules.
  • Antistatic agents are basically classified into two groups: internal antistatic agents and external antistatic agents. Internal antistatic agents are designed to be mixed directly into the material whereas external antistatic agents are applied to the surface.
  • Antistatic agents used within the scope of the invention are selected from a group comprising long-chain aliphatic amines (optionally ethoxylated) and amides, glycerol monostearate (GMS), saturated fatty acids, (poly)unsaturated fatty acids, quaternary ammonium salts (e.g., behentrimonium chloride or cocamidopropyl betaine), sulfonated organic compounds, esters of phosphoric acid, polyethylene glycol esters, polyols and combinations thereof. Also, some commercially available antistatic additives such as OnCapTM, Larostat ®, EntiraTM, Nourymix®, can be used as antistatic agents. It is also possible to use conductive polymers like PEDOT:PSS and conducting polymer nanofibers, particularly polyaniline nanofibers.
  • the present invention provides a medicament comprising a composition of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier as stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material.
  • tiotropium bromide with water content less than or equal to 2.5% which is one of the active agents of the medicament formulation comprising the active agent combination, includes its pharmaceutically acceptable solvates, polymorphs, crystal forms, amorphous forms and/or combinations thereof.
  • mometasone furoate which is one of the active agents of the medicament formulation comprising the active agent combination, includes its pharmaceutically acceptable solvates, hydrates, enantiomers, racemates, free base, polymorphs, crystal forms, amorphous forms and/or combinations thereof.
  • the amount of tiotropium bromide with water content less than or equal to 2.5% is in the range of 1 to 40 ⁇ g per dose, preferably in the range of 1 to 30 g per dose in the medicament formulation in dry powder form comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate and/or pharmaceutically acceptable derivatives thereof.
  • the dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
  • said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
  • lactose which has a mean particle size less than 100 ⁇ is used as carrier as stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material according to the present invention can be used in the treatment of several respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD) and allergic rhinitis.
  • COPD chronic obstructive pulmonary disease
  • these respiratory diseases can be, but not limited to, allergic and non-allergic asthma at any phases, acute lung injury (ALI), acute respiratory distress syndrome (ARDS), intensifying of airways hyperactivity, bronchiectasis, chronic obstructive pulmonary, airways or lung disease including amphizem and chronic bronchitis, pneumokoniosis, aluminosis, antracosis, asbetosis, calicosis, phytilosis, ciderosis, silicosis, tabacosis, bissnosizn.
  • This treatment can be prophylactic or symptomatic.
  • said composition is preferably used for symptomatic treatment of asthma, COPD and allergic rhinitis.
  • a method for preparing the pharmaceutical composition according to the present invention comprises micronizing tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate, preferably by air jet mill, mixing micronized tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate with lactose, then blending the composition to obtain a homogeneous dry powder mixture, and then filling the obtained dry powder mixture into capsules or blisters.
  • the dry powder formulation which is appropriate for a gelatine capsule used in the capsule inhalator comprises 12 parts of tiotropium bromide with water content less than or equal to 2.5% and 200 parts of mometasone furoate that are micronized by an air jet mill to obtain micronized particles with a mean particle size of 1.5 to 4.5 ⁇ ⁇ ⁇ ; and then the micronized particles are mixed with 4500 parts of lactose as carrier which have a mean particle size below ⁇ .
  • Tiotropium bromide bromide with water content less than or equal to 2.5% given in this example comprises its all pharmaceutically acceptable solvates, polymorphs, amorphous forms and crystalline forms.
  • Mometasone furoate given in this example comprises its all pharmaceutically acceptable solvates, hydrates and/or enantiomers, polymorphs, amorphous and crystal forms.
  • Lactose, which is used as carrier, can optionally be added in a higher or a lower amount.
  • the capsule described in the example is made of gelatine and it can optionally be made of chitosan, starch and/or starch derivatives, cellulose and/or cellulose derivatives or synthetic polymers and the inside of the capsule is coated with an antistatic material.
  • a dry powder formulation which is suitable to be stored in blisters so as to be used in a multiple dosing inhalator comprises 18 parts of tiotropium bromide with water content less than or equal to 2.5% and 400 parts of mometasone furoate that are micronized by an air jet mill to obtain particles with a mean particle size of 1.5-4.5 ⁇ , and then the micronized particles are mixed with 10200 pieces of lactose having a mean particle size of less than 100 ⁇ as a carrier.
  • Tiotropium bromide with water content less than or equal to 2.5% given in this example comprises its all pharmaceutically acceptable solvates, polymorphs, amorphous forms and crystalline forms.
  • Mometasone furoate given in this example comprises its all pharmaceutically acceptable solvates, hydrates and/or enantiomers, polymorphs, amorphous and crystal forms. Lactose, which is used as carrier, can optionally be added in a higher or a lower amount.
  • the example can be repeated by replacing the amounts in Example 20 with the amounts given in the table below.

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Abstract

The present invention relates to pharmaceutical compositions in dry powder form comprising tiotropium and mometasone furoate and/or their pharmaceutically acceptable derivatives as active agents, and capsule and blister forms containing these pharmaceutical compositions so as to be used in treatment of respiratory tract diseases.

Description

DRY POWDER PHARMACEUTICAL COMPOSITION COMPRISING
TIOTROPIUM AND MOMETASONE
The present invention relates to a pharmaceutical composition in dry powder form comprising tiotropium and mometasone and/or their pharmaceutically acceptable derivatives as active agents so as to be used in the treatment of respiratory tract diseases especially in asthma and chronic obstructive pulmonary disease (COPD), and the delivery of this pharmaceutical composition.
Airways, in other words bronchia, are the channels which function to distribute the inhaled air into the lung tissues. In the case of respiratory diseases such as asthma or chronic obstructive pulmonary disease (COPD), stimulants such as allergen, infection, good and bad smell, smoke, genetic factors and exercise cause contractions in the airway muscles (bronchoconstruction) and/or excessive secretion in glands and results in contractions in the airway; hence, respiration gets more difficult as the inhaled air cannot be exhaled.
Corticosteroids which are used in the treatment of asthma and COPD are synthetic and strong anti-inflammatory drugs that are similar to natural corticosteroid hormones produced by adrenal glands. They prevent both the transcription of the inflammatory gene and the activation of the anti-inflammatory gene. They are known to be the most effective drug in the treatment of asthma.
Mometasone froate, which was first described in the patent application US4472393, is a corticosteroid having the chemical name (1 l ,16a)-9,21-Dichloro-l 1 -hydroxy- 16- methyl-3,20 dioxopregna-l,4-diene-17-yl-2-furoate.
Corticosteroids are not preferred in acute asthma crises as they do not have rapid onset of action. Since inhaled corticosteroids may prevent growth in children, they are advised to be used in the lowest possible amount. Long-term use of corticosteroids may cause cataract and glaucoma. In addition, they may cause some serious side-effects such as osteoporosis, high cholesterol, edema, encepholalgia, weight gain, insomnia and some skin problems. 1 000012
Anticholinergics are the other active agents which are utilized in the treatment of respiratory disorders. Anticholinergics affect muscarinic receptors and prevent the obliteration in the bronchia due to excessive secretion. These drugs are categorized into two groups as long-acting and short-acting. Short-acting anticholinergics including ipratropium bromide and oxitropium bromide have an onset of action of 15 minutes and their duration of action is 6-8 hours. The long- acting anticholinergic agent is tiotropium. Tiotropium, having the chemical name (1R, 2R, 4S, 5S, 7S)-7-[(hydroxidi-2- thienylacetyl)oxy]-9,9-dimethyl-3-oxa-9-azoniatricyclo [3.3.1.02'4] nonane, was first described in the patent application EP0418716. Tiotropium's onset of action is 20 minutes but its duration of action is 24 hours. Thus, it is enough to take it once a day. Xerostomia, blurred vision, glaucoma and dry cough are its side-effects.
The use of combination drugs in the treatment of respiratory diseases such as asthma and COPD is very effective particularly in decreasing asthma attacks. It is possible that the severity or occurrence possibility of the abovementioned side effects decreases as the active substances that are used in combinations are more effective at lower doses compared to the active substances used alone.
However, decreasing the side effects that arise from the active agents is not sufficient to provide effective treatment for respiratory diseases. The medicaments used in the formulations should be selected in a way to give the best combination and furthermore, they should be in the most stable form. Moreover, the compositions comprising them should be formulated in such a way that the composition is stable and also it reaches to the target area in the most efficient way.
The inventor has found that therapeutic benefits are obtained through the use of the combination comprising of tiotropium bromide with water content less than or equal to 2.5%, and mometasone furoate together in dry powder form for simultaneous or sequential administration in the prevention or treatment of respiratory diseases.
It was seen that a combination comprising tiotropium bromide with water content less than or equal to 2.5%, and mometasone furoate in dry powder form provides the most stable and therapeutically beneficial combination for simultaneous or sequential administration in the prevention or treatment of respiratory diseases. R2011/000012
Furthermore, the amount of active agents used in the composition is carefully adjusted in order to prevent the side effects that might arise from these agents and it was seen that the adhesive force between the particles forming the composition is reduced and hence, the amount of inhaled particles and the efficacy of the formulation increases in addition to observing minimum side effects, when tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate present in the composition is used in an amount such that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight.
In order to ensure effective absorption of the active agents into the lung tissue, the particle size of the agents should be adjusted. Although large particle size provides ease in the manufacture of the dry powder, it may accumulate in throat and lead to insufficient intake of the medicament. Very fine particles, on the other hand, may reach the lungs. However, they might not have a good flow property, which causes problems in providing dose accuracy in turn. To prevent these problems, the active agents should have an optimum average particle size. The inventors have found that tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate combination wherein the mean particle size of the active agents is in the range of 1.5 to 4.5 μηι reaches the lungs effectively and also no problems related to flow properties of the dry powder are observed.
The term "mean particle size" refers to particles wherein the particle size of 50% of the total number of particles is less than the average particle size.
In one aspect, the present invention is related to dry powder formulations comprising a combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate are present in the composition in an amount that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight and wherein the mean particle size of the active agents (i.e. tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate) is in the range of 1.5 to 4.5 μηι. According to the present invention, the drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate may also contain effective amounts of excipients and/or additional agents apart from active agents.
According to the present invention, the dry powder formulation comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is transmitted to the patient in dry powder form. Said dry powder formulations also contain some physiologically acceptable excipients along with the active agent. These excipients can be monosaccharides (glucose, etc.), disaccharides (lactose, saccharose, maltose, etc.), oligosaccharides and polysaccharides (dextran, etc.), polyalcohols (sorbitol, mannitol, xylitol, etc.), salts (sodium chloride, calcium carbonate, etc.) or a mixture thereof.
The inventors have found that in compositions according to present invention, in other words in compositions comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and wherein tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate are present in the composition in an amount that the ratio of tiotropium bromide with water content less than or equal to 2.5% to mometasone furoate is in the range of 1 :3 to 1 :40 by weight, using lactose as the one and only carrier provides optimum homogeneity and flow properties to the dry powder and this way dose accuracy is maintained.
In other words, it is another aspect of the present invention that lactose is used as the one and only carrier in dry powder formulations comprising combinations of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form.
It was also seen that the mean particle size of lactose plays an important role in delivery of the medicament to the target area, i.e. lungs, effectively in compositions according to present invention. It was found that when lactose having a mean particle size less than or equal to 100 μηι is used in compositions comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and wherein said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively, the adhesive forces present between the lactose particles and the active agents having a mean particle size in the range of 1.5 to 4.5 μπι are minimized and thus, an effective inhalation of the active agents takes place.
In another aspect, the present invention provides a composition comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate in dry powder form wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier.
Lactose which has a mean particle size less than 100 μηι is preferably used as a mixture of particles which have two different mean particle sizes. Accordingly, lactose which has a mean particle size less than 100 μηι can be present as a mixture of particles having a mean particle size less than 10 μιη (finer) and particles having a mean particle size in the range of 10 μηι to 100 μηι (coarser). The inventors have observed that when lactose which has two different mean particle sizes is used, the adhesive force between the active agents and lactose is even less.
The ratio between the finer lactose particles which have a mean particle size less than 10 μη and the coarser lactose particles which have a mean particle size in the range of 10 μπι to 100 μηι is in the range of 20:80% and 40:60% by weight.
According to the present invention, the amount of pharmaceutically acceptable carrier is preferably in the range of 0-50 mg.
The finer lactose particles have a mean particle size less than 10 μιη, preferably between 2 μηι and 8μιη and the coarser lactose particles have a mean particle size less than 100 μηι, preferably between 30 μηι and 80 μηι. The medicament composition of the present invention is in dry powder form and it is inhaled via dry powder inhalers. Accordingly, the medicament can be inhaled from a reservoir containing dry powder, a blister pack in which many blisters are placed in an order or a capsule. Among these, the inhalers that enable the intake of a single dose in an accurate manner were found to give the best results. This condition is provided by the dosage forms wherein each dose of the medicament is stored in a single unit of dosage form. Accordingly, the medicament combination according to the present invention is stored in blister packs consisting of blisters or capsules and is inhaled via dry powder inhalation devices where blisters or capsules are used.
The inventor has surprisingly found that administering the dry power drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier as stored in a blister pack or capsule via a dry powder inhaler in order to prevent and treat respiratory diseases provides the transmission of the exact and the effective dose to the target area and elimination and/or alleviation of the known side effects of the therapeutic agents. Hence, maximum therapeutic benefit is provided due to the efficacy of the transmission method.
According to another aspect, the present invention provides a dry powder drug comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and 11 000012
• lactose which has mean particle size less than 100 μιη is used as carrier which realizes a simultaneous inhalation from the blister pack or capsule that can guarantee a single dose intake at once in order to achieve dose sufficiency.
According to another aspect, the present invention provides inhalation of the dry powder drug comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μιη and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier via a simple, low cost, trustable dry powder inhaler.
According to another aspect, the present invention provides a drug that provides to realize the use of a composition comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μιη is used as carrier as stored together in a peelable blister or pierceable capsule pack in the treatment of respiratory diseases such as asthma and COPD.
The inventors have found that by storing the dry powder medicament pertaining to the present invention in blister packs comprising blisters and capsules which have the specified properties pertaining to the present invention; • equal dose intake is provided in each use as the dry powder formulation is filled into the blisters or capsules with a good dosage accuracy in the factory after the manufacture,
• the drug is transmitted to the target area, which is the lungs, without absorbing moisture as the blister or capsule pertaining to the present invention is peeled/torn/pierced immediately before use,
• inhalation of inadequate or excessive dose is prevented and inhalation of a unit dose is ensured as it is single dose,
• the dry powder formulation pertaining to the present invention is effectively transmitted to the lungs from the blisters or capsules pertaining to the present invention via a dry powder inhaler, and
• devices containing blisters or capsules provide ease of use to the patients as they are small in size resulting from the fact that they work with simple mechanical components compared to other devices.
The present invention relates to a delivery method of a drug composition comprising a composition of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μιη and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μιτι is used as carrier which is particularly used in the treatment of people suffering respiratory diseases such as asthma, COPD and allergic rhinitis, as stored in a blister or capsule package via a dry powder inhaler.
If capsule is used as the package for the dry powder medicament according to the invention, the piercing components, which exist in the device to prepare the dry powder drug carried in a capsule for inhalation, pierce the capsule when the device is triggered and the dry powder drug kept in the capsule becomes ready for inhalation. After the inhalation is completed, the empty capsule is ejected from the device and a new capsule is placed immediately before the following inhalation takes place.
The capsule package, which is preferred to be used in scope of the present invention, consists of two intertwining parts.
In the present invention, the inventors have found that the ideal inhalation conditions are achieved when the volume of the capsule, which comprises the dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier mometasone furoate, is in the range of 0.1 to 0.52 ml, preferably in the range of 0.1 to 0.45 ml, more preferably in the range of 0.15 to 0.42 ml.
Accordingly, the capsule that is used to store and transmit the combination comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μπι is used as carrier is characterized in having a cavity volume in the range of 0.1 to 0.52 ml, preferably 0.1 to 0.45 ml, more preferably in the range of 0.15 to 0.42 ml.
According to another aspect, the capsule package which has high protection against moisture and other negative external factors has a moisture rate between 10%-20%, preferably 15%-20%. In the case that the capsules having this characteristic are used, both the active composition is protected from external factors and the probability of moisture arising from the capsule's own structure are prevented. Thus, the most effective transmission to the patient is enabled by preventing the agglomeration of the dry powder.
The capsule, which is preferred to be used in scope of the present invention, can be made of a substance chosen from a group including gelatine, chitosan, starch and/or starch derivatives, cellulose and/or cellulose derivatives or synthetic polymers as well as consisting intertwined upper and lower parts. These upper and lower parts of said capsule can be produced of identical or different materials.
In the case that the capsule used in the present invention is made of cellulose or its derivatives, the capsule material can be selected from, but not limited to, a group comprising hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose.
In the case that the capsule used in the present invention is synthetic polymer, the capsule material can be selected from, but not limited to, a group including polyethylene, polyetheleneteraphtalate, polycarbonate or polypropylene.
In the case that the capsule material used in the present invention is gelatine, additional agents such as polyethylene glycol, sorbitol, glycerol, propylene glycol, polyethylene oxide - polypropylene oxide block copolymers and/or other polyalcohols or polyethers at different molecular weights can be added into it.
According to another aspect, the present invention is characterized in that the capsule cavity used to provide an effective inhalation of the dry powder medicament is filled up to 0.01% to 25% of its total volume, preferably 0.1 to 20% of its total volume, more preferably 0.5 to 17% of its total volume.
According to this, the present invention comprises dry powder formulations containing tiotropium and mometasone furoate and/or pharmaceutically acceptable derivatives and their administration to patients from a capsule having a total cavity volume in the range of 0.1 to 0.52 ml and wherein the capsule cavity is filled up to 0.01% to 25% of the total volume, via a dry powder inhaler.
In addition, the capsule pack pertaining to the present invention can be in any color or shape as long as it has the properties described above.
The capsule or the blister pack, which comprises the formulation pertaining to the present invention, can be used with any dry powder inhalation device, for example with devices as described in the patent applications numbered TR2008/03522, TR2008/03523, TR2010/03091 , TR2010/04311.
In another aspect, blister packs can be used as the package for the dry powder medicament according to the invention. Blister packages can be a) torn b) pierced or c) peeled to be opened according to the structure of the device and the blister. As a result of the studies and experiments that they conducted, the inventors have found that it is difficult to use dry powder inhalers which contain pierceable or tearable blister packs for patients as these devices require additional components which increase the size, volume and the complexity of the device. In addition, the amount of uninhaled dry powder formulation remaining in the blister cavity increases due to the roughness resulting from being torn and therefore, the rate of utilization from the present dry powder formulation decreases in tearable blisters. In contrast, the amount of dry powder remaining in the blister cavity decreases as said dry powder combination is transmitted much more effectively with a high discharge capacity in the case that peelable blisters are used.
The dry powder medicament pertaining to the present invention can be carried in peelable blister packages. Blister packs are comprised of orderly placed blisters each of which contains minimally one dose of the dry powder drug. When the device is triggered, the blister pack or one of the blisters in the pack is peeled and the drug in dry powder form is prepared for inhalation.
According to the present invention, the cavity volume of the blisters that are arranged side by side in a certain order on the blister pack which provides to carry and store the drug in dry powder from is 17 to 30 mm3, preferably 18 to 23 mm3, most preferably 19 to 21 mm3.
The cavity volume of the blisters pertaining to the present invention, which provide to transmit and store the dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μπι is used as carrier is in the range of 17-30 mm3, preferably in the range of 18-23 mm3, most preferably in the range of 19-21 mm3 and each blister cavity having the volume described above is filled up to 25-100 %, preferably up to 70-100 %, most preferably up to 90-100 % of said volume in order to meet the specified needs for an effective inhalation.
The lid and the base sheets of said blister pack constituted by the blisters having the specified properties, in which the drug in dry powder form pertaining to the present invention is stored, are closed very tightly by any suitable method to provide impermeability.
According to the present invention, the lid and the base sheets constituting the blister package consist of several layers. Polymeric layers, aluminum foil and preferably Aclar® fluoropoylmer film are among the layers that form the lid and the base sheet.
Aclar® fluoropolymer film is a polymeric film which is used in blister packs and provides excellent moisture barrier. This chemically inert polymeric film does not cause any change in the taste of the formulation when it is in contact with the dry powder formulation. In addition, it easily constitutes a layered structure with the other polymeric layers which are composed of various polymers. It is appropriate to be transacted with heat. In order to decrease the gas and moisture permeability of the layer, preferably desiccant agents are added to the polymeric layers to preserve the stability of the dry powder formulation stored in blisters that are arranged in an order on the blister package. Silica gel, zeolite, alumina, bauxite, anhydrous calcium sulfate, activated carbon and clay which have the property of water absorption can be given as examples to desiccant agents.
As it is common to use aluminum in lid and base sheets of high protection blister packs, aluminum is used both in the lid and the base sheets of the blister pack of the present invention in order to provide high moisture and gas protection. These aluminum foils must be thick enough to provide the desired protection for the stability of the moisture sensitive dry powder formulation stored in the blister cavity. Due to this reason, the thickness of the aluminum foil that is used in the lid and the base sheets of the blister pack is chosen to be in the range of 10 to 40 μιη, preferably of 15 to 30 μη .
According to the present invention, the polymeric layers in the lid and the base sheets of the blister pack mentioned in the present invention are composed of the same or different polymers. The thickness of these polymeric layers varies according to the type of the polymeric substance used and its properties. Therefore, the thickness of the polymeric layer varies in the range of 15-60 μηι, preferably of 20-35 μηι depending on the type of the polymer used.
The blisters which constitute the blister pack in which the dry powder drug pertaining to the present invention is stored can be in any shape as long as they have the properties described above.
Due to the electrostatic interactions between the dry powder particles and the inside layer of the blister cavity or the capsule material which is in contact with the dry powder formulation, the dry powder particles mainly adhere to said inside layer of the blister cavity or said capsule material. Since some uninhaled dry powder formulation is remained in the blister cavity or the capsule during inhalation, sufficient amount of the dry powder formulation for an effective therapy cannot reach to the lungs. Therefore, the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material. Within the scope of the invention, the term "antistatic material" refers to a material which eliminates the buildup of static electricity. The antistatic material used herein encloses a material which is antistatic itself or which is not antistatic itself but contains antistatic agent(s).
According to the present invention, an antistatic agent is used for treatment of the layer or their surfaces in order to reduce or eliminate the buildup of static electricity generally caused by the triboelectric effect (charge generation by friction). Its role is to make the surface or the material itself slightly conductive, either by being conductive itself, or by absorbing moisture from the air. Therefore, some humectants can be used. The molecules of an antistatic agent often have both hydrophilic and hydrophobic areas similar to those of a surfactant. The hydrophobic side interacts with the surface of the material while the hydrophilic side interacts with the air moisture and binds the water molecules.
Antistatic agents are basically classified into two groups: internal antistatic agents and external antistatic agents. Internal antistatic agents are designed to be mixed directly into the material whereas external antistatic agents are applied to the surface.
Antistatic agents used within the scope of the invention are selected from a group comprising long-chain aliphatic amines (optionally ethoxylated) and amides, glycerol monostearate (GMS), saturated fatty acids, (poly)unsaturated fatty acids, quaternary ammonium salts (e.g., behentrimonium chloride or cocamidopropyl betaine), sulfonated organic compounds, esters of phosphoric acid, polyethylene glycol esters, polyols and combinations thereof. Also, some commercially available antistatic additives such as OnCap™, Larostat ®, Entira™, Nourymix®, can be used as antistatic agents. It is also possible to use conductive polymers like PEDOT:PSS and conducting polymer nanofibers, particularly polyaniline nanofibers.
Processing conditions, polymer base, relative humidity of the environment, material thickness and active agents used in the dry powder formulation play an important role in selecting the most appropriate antistatic agent. Also, the bloom rate (the rate of migration of the antistatic agent to the surface) varies greatly among the antistatic agent choices. The antistatic agents in the material, which is the inside layer of the blister cavity or capsule material, are present in a range from 0,1% to 5% by weight of said material. In another aspect, the present invention provides a medicament comprising a composition of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μιη and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier as stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material.
According to the present invention, tiotropium bromide with water content less than or equal to 2.5%, which is one of the active agents of the medicament formulation comprising the active agent combination, includes its pharmaceutically acceptable solvates, polymorphs, crystal forms, amorphous forms and/or combinations thereof.
According to the present invention, mometasone furoate, which is one of the active agents of the medicament formulation comprising the active agent combination, includes its pharmaceutically acceptable solvates, hydrates, enantiomers, racemates, free base, polymorphs, crystal forms, amorphous forms and/or combinations thereof.
According to the present invention, the amount of tiotropium bromide with water content less than or equal to 2.5% is in the range of 1 to 40 μg per dose, preferably in the range of 1 to 30 g per dose in the medicament formulation in dry powder form comprising the combination of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate and/or pharmaceutically acceptable derivatives thereof.
According to the present invention, the amount of mometasone furoate in the range of 50 to 600μg per dose, preferably in the range of 150 to 500 μg per dose in the medicament formulation in dry powder form comprising the combination of tiotropium and mometasone furoate and/or pharmaceutically acceptable derivatives thereof. 0012
The dry powder drug comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μηι is used as carrier as stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material according to the present invention can be used in the treatment of several respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD) and allergic rhinitis. Accordingly, these respiratory diseases can be, but not limited to, allergic and non-allergic asthma at any phases, acute lung injury (ALI), acute respiratory distress syndrome (ARDS), intensifying of airways hyperactivity, bronchiectasis, chronic obstructive pulmonary, airways or lung disease including amphizem and chronic bronchitis, pneumokoniosis, aluminosis, antracosis, asbetosis, calicosis, phytilosis, ciderosis, silicosis, tabacosis, bissnosizn. This treatment can be prophylactic or symptomatic. In addition, said composition is preferably used for symptomatic treatment of asthma, COPD and allergic rhinitis.
A method for preparing the pharmaceutical composition according to the present invention comprises micronizing tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate, preferably by air jet mill, mixing micronized tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate with lactose, then blending the composition to obtain a homogeneous dry powder mixture, and then filling the obtained dry powder mixture into capsules or blisters.
The pharmaceutical composition pertaining to the present invention can be explained with, but not limited to, the examples given below. EXAMPLE 1
The dry powder formulation which is appropriate for a gelatine capsule used in the capsule inhalator comprises 12 parts of tiotropium bromide with water content less than or equal to 2.5% and 200 parts of mometasone furoate that are micronized by an air jet mill to obtain micronized particles with a mean particle size of 1.5 to 4.5 μηι; and then the micronized particles are mixed with 4500 parts of lactose as carrier which have a mean particle size below ΙΟΟμιη.
Tiotropium bromide bromide with water content less than or equal to 2.5% given in this example comprises its all pharmaceutically acceptable solvates, polymorphs, amorphous forms and crystalline forms. Mometasone furoate given in this example comprises its all pharmaceutically acceptable solvates, hydrates and/or enantiomers, polymorphs, amorphous and crystal forms. Lactose, which is used as carrier, can optionally be added in a higher or a lower amount. The capsule described in the example is made of gelatine and it can optionally be made of chitosan, starch and/or starch derivatives, cellulose and/or cellulose derivatives or synthetic polymers and the inside of the capsule is coated with an antistatic material.
The amounts given in the table below can be replaced with the amounts given in example 1 :
Figure imgf000018_0001
10 21 200 5750
11 21 300 4750
12 21 400 4200
13 21 250 5200
14 12 300 5500
15 12 225 4600
16 11 375 4800
17 1 1 350 6000
18 1 1 250 6000
19 15 400 4750
EXAMPLE 20
A dry powder formulation which is suitable to be stored in blisters so as to be used in a multiple dosing inhalator comprises 18 parts of tiotropium bromide with water content less than or equal to 2.5% and 400 parts of mometasone furoate that are micronized by an air jet mill to obtain particles with a mean particle size of 1.5-4.5 μιη, and then the micronized particles are mixed with 10200 pieces of lactose having a mean particle size of less than 100 μηι as a carrier.
Tiotropium bromide with water content less than or equal to 2.5% given in this example comprises its all pharmaceutically acceptable solvates, polymorphs, amorphous forms and crystalline forms. Mometasone furoate given in this example comprises its all pharmaceutically acceptable solvates, hydrates and/or enantiomers, polymorphs, amorphous and crystal forms. Lactose, which is used as carrier, can optionally be added in a higher or a lower amount.
The example can be repeated by replacing the amounts in Example 20 with the amounts given in the table below. Amount of Amount of Amount of
Example Tiotropium Bromide Mometasone Furoate Lactose
(parts) (parts) (parts)
21 11 225 1 1000
22 11 350 12000
23 11 200 14000
24 20 300 15000
25 20 275 13000
26 20 200 12500
27 15 350 15000
28 15 400 15500
29 15 280 12000
30 1 1 220 12500
31 11 380 16000
32 1 1 400 17000
33 18 250 16750
34 18 275 12500
35 15 200 13500
36 12 300 14500
37 12 400 17000
38 18 300 16500

Claims

1. A medicament composition in dry powder form characterized in that said dry powder medicament composition comprises tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μη is used as carrier and said composition is stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material.
2. The medicament composition in dry powder form according to claim 1, wherein tiotropium bromide with water content less than or equal to 2.5% comprises its pharmaceutically acceptable solvates, polymorphs, crystal forms and amorphous forms and/or combinations thereof.
3. The medicament composition in dry powder form according to claim 1, wherein mometasone furoate comprises its pharmaceutically acceptable solvates, hydrates, enantiomers, racemates, polymorphs, crystal forms and amorphous forms and/or combinations thereof.
4. The medicament composition in dry powder form according to claim 2, wherein the amount of tiotropium bromide with water content less than or equal to 2.5% is in the range of 1 to 40 μg per dose.
5. The medicament composition in dry powder form according to claim 3, wherein the amount of mometasone furoate and/or pharmaceutically acceptable derivatives of its is in the range of 50 to 600 g per dose.
6. The medicament composition in dry powder form according to claim 1, wherein lactose which has a mean particle size less than 100 μηι is used as a mixture of particles having two different mean particle sizes.
7. The medicament composition in dry powder form according to claim 6, wherein lactose which has a mean particle size less than 100 μιη is present as a mixture of particles having a mean particle size less than 10 μηι (finer) and particles having a mean particle size in the range of 10 μιτι to 100 μηι (coarser).
8. The medicament composition in dry powder form according to claim 7, wherein the finer lactose particles have a mean particle size between 2 μη and 8μηι and the coarser lactose particles have a mean particle size between 30 μιη and 80 μηι.
9. The medicament composition in dry powder form according to claim 7 or 8, wherein the ratio of the finer lactose particles which have a mean particle size less than 10 μηι to the coarser lactose particles which have a mean particle size in the range of 10 μηι to 100 μηι is in the range of 20:80% and 40:60% by weight.
10. The medicament composition in dry powder form according to claim 1, wherein the amount of lactose is in the range of 0-50 mg.
1 1. The medicament composition in dry powder form according to claim 1 , wherein the antistatic material is a material which is antistatic itself or is not antistatic itself but contains antistatic agent(s).
12. The medicament composition in dry powder form according to claim 11, wherein the antistatic agents are selected from a group comprising long-chain aliphatic amines (optionally ethoxylated) and amides, glycerol monostearate (GMS), saturated fatty acids, (poly)unsaturated fatty acids, quaternary ammonium salts (e.g., behentrimonium chloride or cocamidopropyl betaine), sulfonated organic compounds, esters of phosphoric acid, polyethylene glycol esters, polyols and combinations thereof.
13. The medicament composition in dry powder form according to claim 1, wherein said composition in dry powder form can be stored in blister packs.
14. The blister pack according to claim 13, wherein each blister cavity constituting the blister pack contains at least one dose.
15. The blister pack according to claim 13, wherein the cavity volume of the blister is in the range of 17-30 mm .
16. The blister pack according to any of the claims 14 and 15, wherein the blister cavity is filled up to 25-100% of the total volume.
17. The medicament composition in dry powder form according to claim 1, wherein said pharmaceutical composition in dry powder form can be stored in capsules.
18. The capsule according to claim 17, wherein said capsule is made of a material selected from a group consisting of gelatine, chitosan, starch and/or starch derivatives, cellulose and/or cellulose derivatives or synthetic polymers.
19. The capsule according to claim 17, wherein the capsule material can be selected from a group consisting of hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, hydroxymethyl cellulose,hydroxy ethyl cellulose, in the case that said capsule is made of cellulose or cellulose derivatives.
20. The capsule according to claim 17, wherein the capsule material can be selected from a group consisting of polyethylene, polyester, polyethyleneterephythalate, polycarbonate or polypropylene, in the case that said capsule is made of synthetic polymer.
21. The capsule according to claim 17, wherein polyethylene glycol, sorbitol, glycerol, propylene glycol, polyethylene oxide, polypropylene oxide block copolymer and/or other polyalcohols and polyether which have various molecular weights can be added into the capsule as adjuvant, in the case that said capsule is made of gelatin.
22. The capsule package according to claim 17, wherein the moisture rate is in the range of 10 to 20%.
23. The capsule package according to claim 17, wherein the volume of said capsule pack is in the range of 0.1 to 0.52 ml.
24. The capsule package according to claim 17, wherein the capsule cavity is filled up to 0.01 to 25% of the total volume.
25. The medicament composition in dry powder form comprising tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate wherein;
• the mean particle size of tiotropium bromide with water content less than or equal to 2.5% and mometasone furoate is in the range of 1.5 to 4.5 μηι and
• said active agents are present in the composition with the ratio of 1 :3 to 1 :40 respectively and
• lactose which has a mean particle size less than 100 μιη is used as carrier and said composition is stored in capsules or blisters wherein the inside layer of the blister cavity or the capsule material that is in contact with the dry powder formulation is an antistatic material for use in treatment of respiratory diseases especially asthma, allergic rhinitis, chronic obstructive pulmonary disease (COPD).
PCT/TR2011/000012 2009-12-25 2011-01-28 Dry powder pharmaceutical composition comprising tiotropium and mometasone WO2011093810A2 (en)

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