US20030157028A1 - Formulations containing an anticholinergic drug for the treatment of chronic obstructive pulmonary disease - Google Patents
Formulations containing an anticholinergic drug for the treatment of chronic obstructive pulmonary disease Download PDFInfo
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- US20030157028A1 US20030157028A1 US10/204,307 US20430702A US2003157028A1 US 20030157028 A1 US20030157028 A1 US 20030157028A1 US 20430702 A US20430702 A US 20430702A US 2003157028 A1 US2003157028 A1 US 2003157028A1
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- 239000000203 mixture Substances 0.000 title claims abstract description 80
- 238000009472 formulation Methods 0.000 title claims abstract description 71
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 title claims abstract description 9
- 238000011282 treatment Methods 0.000 title claims description 11
- 239000000812 cholinergic antagonist Substances 0.000 title description 2
- 239000000443 aerosol Substances 0.000 claims abstract description 24
- 239000003380 propellant Substances 0.000 claims abstract description 20
- 239000006184 cosolvent Substances 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 47
- 229960001361 ipratropium bromide Drugs 0.000 claims description 31
- KEWHKYJURDBRMN-ZEODDXGYSA-M ipratropium bromide hydrate Chemical group O.[Br-].O([C@H]1C[C@H]2CC[C@@H](C1)[N@@+]2(C)C(C)C)C(=O)C(CO)C1=CC=CC=C1 KEWHKYJURDBRMN-ZEODDXGYSA-M 0.000 claims description 31
- 239000004480 active ingredient Substances 0.000 claims description 23
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 20
- 150000005828 hydrofluoroalkanes Chemical class 0.000 claims description 15
- 230000001078 anti-cholinergic effect Effects 0.000 claims description 11
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical group FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 10
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000008194 pharmaceutical composition Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 208000027775 Bronchopulmonary disease Diseases 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229940071648 metered dose inhaler Drugs 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 abstract description 8
- 239000003814 drug Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 21
- 239000000725 suspension Substances 0.000 description 9
- 238000003860 storage Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 230000001225 therapeutic effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 239000012456 homogeneous solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- YFMFNYKEUDLDTL-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoropropane Chemical compound FC(F)(F)C(F)C(F)(F)F YFMFNYKEUDLDTL-UHFFFAOYSA-N 0.000 description 3
- LERNTVKEWCAPOY-VOGVJGKGSA-N C[N+]1(C)[C@H]2C[C@H](C[C@@H]1[C@H]1O[C@@H]21)OC(=O)C(O)(c1cccs1)c1cccs1 Chemical compound C[N+]1(C)[C@H]2C[C@H](C[C@@H]1[C@H]1O[C@@H]21)OC(=O)C(O)(c1cccs1)c1cccs1 LERNTVKEWCAPOY-VOGVJGKGSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229960001609 oxitropium bromide Drugs 0.000 description 3
- LCELQERNWLBPSY-KHSTUMNDSA-M oxitropium bromide Chemical compound [Br-].C1([C@@H](CO)C(=O)O[C@H]2C[C@@H]3[N+]([C@H](C2)[C@@H]2[C@H]3O2)(C)CC)=CC=CC=C1 LCELQERNWLBPSY-KHSTUMNDSA-M 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229960000257 tiotropium bromide Drugs 0.000 description 3
- 208000009079 Bronchial Spasm Diseases 0.000 description 2
- 208000014181 Bronchial disease Diseases 0.000 description 2
- 206010006482 Bronchospasm Diseases 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 206010006458 Bronchitis chronic Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 208000011623 Obstructive Lung disease Diseases 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000012387 aerosolization Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000556 agonist Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 230000003182 bronchodilatating effect Effects 0.000 description 1
- 230000007883 bronchodilation Effects 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 208000023819 chronic asthma Diseases 0.000 description 1
- 208000007451 chronic bronchitis Diseases 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 ipratropium bromide Chemical class 0.000 description 1
- 238000012417 linear regression Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 210000003300 oropharynx Anatomy 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002525 ultrasonication Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- 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
- A61K9/008—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy comprising drug dissolved or suspended in liquid propellant for inhalation via a pressurized metered dose inhaler [MDI]
-
- 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
Definitions
- the present invention relates to formulations for administration through pressurized metered dose inhalers containing a quaternary ammonium salt with anticholinergic action in solution in a hydrofluorocarbon propellant, a cosolvent and a low volatility component. More particularly, the invention relates to formulations containing ipratropium bromide in solution, in which the concentration of active ingredient corresponds to single doses ranging from 80 to 320 ⁇ g and the amount of respirable particles is directly related to the dose itself. “Single dose” means the amount of active ingredient delivered by a single actuation of the inhaler.
- formulations of the invention can be useful for the treatment of any respiratory disease and in particular for the treatment of the chronic obstructive pulmonary disease.
- COPD chronic obstructive pulmonary disease
- Anticholinergic quaternary ammonium salts such as oxitropium bromide, tiotropium bromide and ipratropium bromide, are usually prescribed in the form of inhalatory formulations, for patients suffering from said disease, due to their bronchodilating, antisecretive and bronchospasm-preventive actions.
- Said drugs particularly ipratropium bromide, induce less prompt bronchodilation than conventional P2-agonists, but provide greater peak response and longer duration of action. Said characteristics make them particularly suitable for the chronic treatment rather than the acute one (Ferguson G. et al. N Engl J Med 1993, 328, 1017-1022).
- Wood et al also observed for doses of at least 160 ⁇ g a longer duration of action, up to 12 hours: such prolonged effect would allow for a bis in die (b.i.d.) (twice a day) administration with evident advantages in terms of patient compliance.
- the effectiveness of an aerosol device is a function of the dose deposited in the peripheral tract of the pulmonary tree, that is, in turn mainly affected by the particle size distribution.
- the particle size is quantified by measuring a characteristic equivalent sphere diameter, known as median aerodynamic diameter (MAD). Particles having a MAD ranging from 0.8 to 5 microns ( ⁇ m) are usually considered respirable, i.e. capable of being deposited into the lower airways. It has also been established that, in the case of anticholinergic drugs for use in obstructive pulmonary diseases, the optimal particle size should be approximately 3 ⁇ m (Zanen P et al. Int. J. Pharm. 1995, 114, 111-115 ; Thorax 1996, 51, 977-980).
- the size distribution of the delivered particles almost exclusively depends on the particle size distribution of the suspended particles, and hence on the process used for preparing them (milling or precipitation). Any kind of adjustments of the particle size of the delivered aerosol can be carried out by those skilled in the art, by suitably changing amounts and types of excipients, surface tension of the propellant, size of the metering chamber and diameter of the actuator orifice.
- the preparation of suspension formulations at higher concentrations of drugs aimed at delivering higher single doses could however involve problems intrinsically difficult to be solved. Under high concentration conditions, the suspended particles could, indeed, give rise to aggregation, particularly during storage, so to an increment of the size of particles.
- Hydrofluoroalkanes and in particular 1,1,1,2-tetrafluoroethane (HFA 134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFA 227) have been acknowledged to be the best candidates as substitutes for CFCs.
- High-dosage suspension formulations in which CFCs are replaced with HFAs would nevertheless exhibit the same pitfalls in term of physical stability and therapeutical efficacy as mentioned above; moreover, in the case of anticholinergic quaternary ammonium salts such as ipratropium bromide, the possibility of preparing formulations of adequate physical stability during storage would further be compromised or even prevented by the partial solubility of said active ingredient in HFA (Brambilla et al. Int J Pharm 1999, 186, 53-61); in fact, the size of the suspended particles could grow during storage as a consequence of the partial or total recrystallization of the small amount of dissolved solute, thus worsening the problems deriving from the lack of steady particle size distribution.
- solution compositions should unavoidably been used.
- Said compositions provide a number of advantages in that they are easier to be prepared and could allow to avoid the physical stability problems potentially linked to the high dosage suspension formulations.
- solution formulation are not rid of potential drawbacks as they can give rise, for instance, to more severe problems of chemical instability.
- the suspended particles no longer contribute to the total volume, the problem of ensuring a direct relationship between increase in dosage and increase in the drug deposited at the therapeutical site (respiratory tract) is even more dramatic.
- solution formulations comprising an anticholinergic drug, such as ipratropium bromide to be used with pressurised metered dose inhalers, in which the active ingredient concentration corresponds to single doses ranging from 80 to 320 ⁇ g, characterized by adequate chemical stability for pharmaceutical use and capable of providing, on actuation, an amount of respirable particles directly proportional to the delivered dose.
- Said formulations would turn out to be useful for the treatment of respiratory ailments such as chronic obstructive pulmonary disease.
- the object of the present invention is to provide solution formulations comprising an anticholinergic quaternary ammonium salt selected from oxitropium bromide, tiotropium bromide and especially ipratropium bromide, to be used with pressurized metered dose inhalers for the treatment of COPD, said solutions being chemically stable and capable of:
- the respirable fraction can favorably correspond to that of the CFC suspension formulations presently available on the market.
- a solution formulation comprising from 0.11% to 1.14% by weight of an anticholinergic quaternary ammonium salt and a carrier consisting of a hydrofluoroalkane propellant, a cosolvent and a low volatility component that also has solvent properties.
- the hydrofluoroalkane propellant is HFA 134a
- the cosolvent is ethanol
- the low volatility component is glycerol
- a solution formulation comprising from 0.14%-0.28% by weight of ipratropium bromide and a carrier consisting of HFA 134a as a propellant, 13% by weight of ethanol and 1% by weight of glycerol.
- WO 98/56349 the Applicant disclosed solution compositions for use in an aerosol inhaler, comprising an active ingredient, a propellant containing a hydrofluoroalkane (HFA), a cosolvent and further comprising a low volatility component to increase the median aerodynamic diameter (MAD) of the aerosol particles on actuation of the inhaler;
- HFA hydrofluoroalkane
- MAD median aerodynamic diameter
- Said formulations proved to be pharmaceutically equivalent to the presently marketed formulations, consisting of CFC suspensions (Ganderton D et al. J. Aerosol Med. 1999, 12, 119).
- a low volatility component allows to minimize the amount of cosolvent, in this case ethanol, added to the formulation and hence to avoid the negative effects on the respirable/therapeutically effective dose due to the increase of its relative percentage.
- the median aerodynamic diameter (MAD) of the droplets remains substantially unchanged at increasing concentrations, therefore the respirable dose is directly related to the dose obtained on actuation of the inhaler. As a consequence, the increase in the respirable fraction concentration remains steady. Contrary to what reported in the prior art (Dolovich M Aerosol Science and Technology 1995, 22, 392-399) it has in fact surprisingly been found that in the formulations of the invention the respirable fraction does not decrease as the single dose increases. Furthermore, by suitably adjusting the actuator orifice diameter, it is possible, as the delivered dose increases, to steadily increase the respirable dose so that this is also linearly related to the dose of the CFC suspension formulations presently available on the market. Said feature makes the formulations of the invention therapeutically preferable as they avoid possible problems related to a non-linear response, such as accumulation, greater side effects or vice versa less effective therapeutical action.
- WO 94/13262 generically disclosed and claimed aerosol HFA solution formulations comprising 0.001%-2.5% of ipratropium bromide in the presence of ethanol as cosolvent and of small amounts of organic or inorganic acids.
- the specific examples however only relate to formulations with active ingredient concentrations (0.0187%-0.0748% by weight) corresponding to doses for single actuation ranging from 10 to 40 ⁇ g and containing 15% by weight of ethanol.
- organic or inorganic acids are used for ensuring higher chemical stability of the active ingredient, and not for solving the technical problem related with the preparation of high dosage formulations providing a respirable dose therapeutically effective and directly related to the concentration.
- the formulations of the invention can be prepared as described in WO 98/56349 and comprise a quaternary ammonium salt provided of anticholinergic action, such as oxitropium bromide, tiotropium bromide, ipratropium bromide in a concentration that, depending on the characteristics of the active ingredient, ranges from 0.11% to 1.14% by weight and which, in turn, could give rise, by suitably adjusting the volume of the metering chamber, to single doses ranging from 60 to 640 ⁇ g. More preferably, the active ingredient is a quaternary ammonium salt provided with anticholinergic action in a concentration ranging from 0.12% to 0.56% by weight.
- a quaternary ammonium salt provided of anticholinergic action such as oxitropium bromide, tiotropium bromide, ipratropium bromide in a concentration that, depending on the characteristics of the active ingredient, ranges from 0.11% to 1.14% by weight and which, in turn,
- the active ingredient is ipratropium bromide in a concentration ranging from 0.14% to 0.28% by weight.
- the formulation containing 0.14% ipratropium bromide can be used for delivering single doses of 80 and 160 ⁇ g, while that containing 0.28% for single doses of 160 and 320 ⁇ g.
- the low volatility component has a vapor pressure at 25° C. not above 0.1 kPa, preferably not above 0.05 pKa.
- Particularly suitable for the use of the invention are glycols, in particular propylene glycol, polyethylene glycol and most preferably glycerol.
- the invention also comprises all the substances, alone or in admixture, having similar vapor pressure characteristics and suitable solvent power for the active ingredients belonging to the anticholinergic quaternary ammonium salts.
- the composition preferably contains at least 0.2%, more preferably 1% by weight of said component and anyway no more than 6%.
- the cosolvent has advantageously higher polarity than the propellant and is preferably an alcohol, more preferably ethanol.
- the amount of cosolvent in the composition is below 19% by weight, preferably it does not exceed 15% by weight more preferably it does not exceed 13% by weight.
- Preferred hydrofluoroalkane propellants are HFA 134a, HFA 227 or mixtures thereof.
- the formulations of the invention are preferably stored in pressurized inhalers for aerosol, part or all of their inner metal surfaces being made of anodized aluminium, stainless steel or coated with an inert organic coating agent. It has, in fact, been observed that in this type of cans the active ingredient remains chemically stable during storage, even at concentrations higher than 0.11% by weight.
- the inhalers can be equipped with any suitable conventional or unconventional dispensing valve, preferably a metered dose valve as well as any suitable conventional or unconventional metering chamber.
- the inhalers are equipped with an actuator with orifice diameter from 0.25 to 0.50 mm, preferably 0.3 mm and with a metering chamber with a volume from 25 ⁇ l to 100 ⁇ l.
- the volume of metering chamber and the orifice diameter of the actuator will be suitably selected by the person skilled in order to deliver the desired single dose as well as to the best performances in term of respirable dose.
- the invention relates to, the use of said formulations in the treatment of bronchopulmonary diseases, in particular chronic obstructive pulmonary disease.
- the invention refers also to a process for the preparation of pharmaceutical formulations according to claims 1-6 which consists in filling the components into the metered dose inhaler in the following order: active ingredient, low volatility component, cosolvent and finally propellant through the valve.
- aerosol formulations of the invention described below are prepared according to the following method.
- the components necessary to the formulation are transferred into 12 ml aerosol cans in the following order: drug, low volatility component, absolute ethanol.
- Results were obtained as a mean of 3-4 cans. For each device, 5-25 cumulative actuations were carried out after discarding the first 5.
- Deposition of the drug on each ACI plate was determined by high pressure liquid chromatography (HPLC).
- HPLC high pressure liquid chromatography
- Mean metered dose was calculated from the cumulative deposition in the actuator and ACI (stages); mean delivered dose was calculated from the cumulative deposition in the ACI.
- Mean respirable dose fine particle dose was obtained from the deposition on Stages 3 to filter corresponding to particles ⁇ 4.71 ⁇ m, divided by the number of actuations per experiment.
- MAD and associated GSD (standard geometric deviation) values were obtained from probit transformation of cumulative percent undersize—log (ACI effective cut-off particle size diameter) and linear regression analysis of the resultant data, (Ph. Eur. Supp 1999).
- MAD is substantially unaffected by the active ingredient concentration, so that the amount of droplets with size lower than 4.7 ⁇ m (respirable dose) is linearly related to the nominal dose.
- a Bespak BK357 valve is crimped onto the same aerosol bottle. Shaking and ultra-sonication ensured a homogeneous solution was formed before a pre-determined mass of HFA 134a is filled through the valve.
- Final formulations have a total volume into cans having a volume of 12 ⁇ 0.3 ml (20° C.), corresponding to that of the standard aerosol cans.
- the components are expressed as percentages by weight of the total formulation.
- Visual appearance of all manufactured formulations is assessed using a polarized light source immediately after preparation and again after 3 weeks storage at 4.0 ⁇ 0.4° C. Observations where further confirmed after 10 months storage at 4.0 ⁇ 0.4° C.
- Ipratropium bromide is found to crystallise for the following ethanol levels (% by weight): 14.7, 15.0, 16.8, 17.2, 17.5, 17.9 while is found not to crystallise for the following ethanol levels: 18.9, 19.2, 20.6, 21.0, 21.3, 22.2, 22.6, 23.0, 23.4, 24.5, 29.7, 38.9, 40.1.
- the formulation containing an ethanol level of 19% by weight depresses the respirable dose ( ⁇ 4.7 ⁇ m); it also reduces the MAD from 2.2-2.9 ⁇ m to 1.2-1.3 ⁇ m; and increases the Geometric Standard Deviation (GSD) from 2.1-2.6 to 4.3-6.2. TABLE 2 Performances of a the formulation without the low volatility component containing as active ingredient ipratropium bromide corresponding to nominal doses of 80 and 160 ⁇ g.
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Abstract
Formulations for the administration through pressurized metered dose aerosol inhalers containing an anticholineric drug in solution in a hydrofluorocarbon propellant, a cosolvent and a low volatility component, and the use thereof in chronic obstructive pulmonary disease.
Description
- The present invention relates to formulations for administration through pressurized metered dose inhalers containing a quaternary ammonium salt with anticholinergic action in solution in a hydrofluorocarbon propellant, a cosolvent and a low volatility component. More particularly, the invention relates to formulations containing ipratropium bromide in solution, in which the concentration of active ingredient corresponds to single doses ranging from 80 to 320 μg and the amount of respirable particles is directly related to the dose itself. “Single dose” means the amount of active ingredient delivered by a single actuation of the inhaler.
- The formulations of the invention can be useful for the treatment of any respiratory disease and in particular for the treatment of the chronic obstructive pulmonary disease.
- The term chronic obstructive pulmonary disease (COPD) refers to a spectrum of diseases such as chronic bronchitis, asthma and lung emphysema, characterized by bronchospasm, cough, hypersecretion and dyspnea which are more and more frequent also due to tabagism as well as an increase of atmospheric pollution. Such disease has social relevance in that it involves repeated, expensive treatments.
- Anticholinergic quaternary ammonium salts, such as oxitropium bromide, tiotropium bromide and ipratropium bromide, are usually prescribed in the form of inhalatory formulations, for patients suffering from said disease, due to their bronchodilating, antisecretive and bronchospasm-preventive actions.
- Said drugs, particularly ipratropium bromide, induce less prompt bronchodilation than conventional P2-agonists, but provide greater peak response and longer duration of action. Said characteristics make them particularly suitable for the chronic treatment rather than the acute one (Ferguson G. et al.N Engl J Med 1993, 328, 1017-1022).
- Although the single optimal dose for the administration of nebulized ipratropium bromide in the treatment of COPD has been established to be 0.4 mg (Gross N J et alAm Rev Respir Dis 1989, 139, 1188-1191), the dosage via pressurized metered dose inhalers has not yet been univocally established. Some authors (Ferguson G. et al, passim) have however suggested that treatment of said disease could benefit from use of higher doses than recommended ones (54-109 μg). Recent studies (Ikeda A et al. Thorax 1996, 51, 48-53; Shivaram U et al. Resp Med 1997, 91, 327-334; Wood F et al. Amer J Resp Crit Care Med 1999, 159, A 523) have demonstrated that the administration of single doses ranging from 80 to 320 μg is beneficial for the improvement in lung function, maximal workload and oxygen consumption.
- Wood et al also observed for doses of at least 160 μg a longer duration of action, up to 12 hours: such prolonged effect would allow for a bis in die (b.i.d.) (twice a day) administration with evident advantages in terms of patient compliance.
- The formulations currently available on the market in the form of metered dose aerosols in chlorofluorocarbons (Freon 11 and Freon 12) suspensions are able of delivering single doses of 20 or 40 μg and the recommended posology envisions the administration of 1-2 shots 3-4 times a day. Therefore, an increase of the frequency of administration to 4-6 times a day would be necessary to guarantee a higher daily dosage regimen, thus adversely affecting the patient compliance.
- On the other hand, the effectiveness of an aerosol device, particularly a pressurized metered dose aerosol, is a function of the dose deposited in the peripheral tract of the pulmonary tree, that is, in turn mainly affected by the particle size distribution. The particle size is quantified by measuring a characteristic equivalent sphere diameter, known as median aerodynamic diameter (MAD). Particles having a MAD ranging from 0.8 to 5 microns (μm) are usually considered respirable, i.e. capable of being deposited into the lower airways. It has also been established that, in the case of anticholinergic drugs for use in obstructive pulmonary diseases, the optimal particle size should be approximately 3 μm (Zanen P et al.Int. J. Pharm. 1995, 114, 111-115; Thorax 1996, 51, 977-980).
- In the suspension formulations, the size distribution of the delivered particles almost exclusively depends on the particle size distribution of the suspended particles, and hence on the process used for preparing them (milling or precipitation). Any kind of adjustments of the particle size of the delivered aerosol can be carried out by those skilled in the art, by suitably changing amounts and types of excipients, surface tension of the propellant, size of the metering chamber and diameter of the actuator orifice. The preparation of suspension formulations at higher concentrations of drugs aimed at delivering higher single doses could however involve problems intrinsically difficult to be solved. Under high concentration conditions, the suspended particles could, indeed, give rise to aggregation, particularly during storage, so to an increment of the size of particles. Larger size particles deposit more quickly and can give rise to the formation of compacted and fuse agglomerates (cakes) which, in turn may impair the possibility of re-suspending the product by simple agitation. Such drawback, could jeopardize both physical stability and therapeutic efficacy of the respective formulations; moreover, even after aerosolization, said cakes could turn out to be hard to be re-dispersed, so they will deposit mainly on the oropharynx tract, to the detriment of the fraction deposited on the peripheral respiratory tract (respirable fraction).
- It is known that the chlorofluorocarbon propellants such as Freon 11 and Freon 12, which for many years have been the preferred propellants used in the aerosols, are being phased out and also their use in medicinal formulations, although temporarily exempted, will be banished.
- Hydrofluoroalkanes (HFAs) and in particular 1,1,1,2-tetrafluoroethane (HFA 134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFA 227) have been acknowledged to be the best candidates as substitutes for CFCs.
- A number of documents concerning the preparation of HFA formulations of ipratropium bromide are disclosed in the prior art, for example WO 91/11495, WO 91/11496 (Boehringer), WO 93/05765 (Fisons), WO 96/19168 (Astra) and WO 98/34595 (Jago); these examples, however, relate to suspension formulations in which the active ingredient concentrations (0.08-0.1% by weight) correspond to single doses of 20-50 μg; furthermore, no data concerning physical stability during storage are provided. In other documents (EP 513217, WO 92/00107, EP 587790, EP 588897, WO 94/21228, WO 94/21229, WO 98/34596, WO 98/24420), formulations containing ipratropium bromide are only cited but not exemplified.
- High-dosage suspension formulations in which CFCs are replaced with HFAs would nevertheless exhibit the same pitfalls in term of physical stability and therapeutical efficacy as mentioned above; moreover, in the case of anticholinergic quaternary ammonium salts such as ipratropium bromide, the possibility of preparing formulations of adequate physical stability during storage would further be compromised or even prevented by the partial solubility of said active ingredient in HFA (Brambilla et al.Int J Pharm 1999, 186, 53-61); in fact, the size of the suspended particles could grow during storage as a consequence of the partial or total recrystallization of the small amount of dissolved solute, thus worsening the problems deriving from the lack of steady particle size distribution.
- In this scenario, solution compositions should unavoidably been used. Said compositions provide a number of advantages in that they are easier to be prepared and could allow to avoid the physical stability problems potentially linked to the high dosage suspension formulations. However, even solution formulation are not rid of potential drawbacks as they can give rise, for instance, to more severe problems of chemical instability. Furthermore, since the suspended particles no longer contribute to the total volume, the problem of ensuring a direct relationship between increase in dosage and increase in the drug deposited at the therapeutical site (respiratory tract) is even more dramatic. The preparation of homogeneous solution formulations requires indeed the addition of cosolvents such as ethanol which, due to their vapor pressure higher than the propellant, increase, proportionally to their concentration, the velocity of the aerosol droplets leaving the actuator orifice. The high velocity droplets extensively deposit into the oropharyngeal tract to the detriment of the dose which penetrates into the lower airways. The higher the dosage of the drug the higher is the amount of cosolvent necessary to solubilise, and hence the lesser is the percentage of therapeutically effective droplets (respirable dose).
- In consideration of the therapeutical requirements outlined above and problems thereof, it would be highly advantageous to provide solution formulations comprising an anticholinergic drug, such as ipratropium bromide to be used with pressurised metered dose inhalers, in which the active ingredient concentration corresponds to single doses ranging from 80 to 320 μg, characterized by adequate chemical stability for pharmaceutical use and capable of providing, on actuation, an amount of respirable particles directly proportional to the delivered dose. Said formulations would turn out to be useful for the treatment of respiratory ailments such as chronic obstructive pulmonary disease.
- The object of the present invention is to provide solution formulations comprising an anticholinergic quaternary ammonium salt selected from oxitropium bromide, tiotropium bromide and especially ipratropium bromide, to be used with pressurized metered dose inhalers for the treatment of COPD, said solutions being chemically stable and capable of:
- i) delivering high single doses, of at least 60 μg and preferably 80 μg;
- ii) provide an amount of respirable particles directly proportional to the delivered dose;
- iii) allow b.i.d. administration with evident advantages in terms of patient compliance.
- In the formulations of the invention, to make the transition from CFC formulations to HFA formulations easier, the respirable fraction can favorably correspond to that of the CFC suspension formulations presently available on the market.
- According to a first embodiment of the invention, there is provided a solution formulation comprising from 0.11% to 1.14% by weight of an anticholinergic quaternary ammonium salt and a carrier consisting of a hydrofluoroalkane propellant, a cosolvent and a low volatility component that also has solvent properties.
- In a preferred embodiment the hydrofluoroalkane propellant is HFA 134a, the cosolvent is ethanol and the low volatility component is glycerol.
- According to a more particular embodiment of the invention, there is provided a solution formulation comprising from 0.14%-0.28% by weight of ipratropium bromide and a carrier consisting of HFA 134a as a propellant, 13% by weight of ethanol and 1% by weight of glycerol.
- In WO 98/56349 the Applicant disclosed solution compositions for use in an aerosol inhaler, comprising an active ingredient, a propellant containing a hydrofluoroalkane (HFA), a cosolvent and further comprising a low volatility component to increase the median aerodynamic diameter (MAD) of the aerosol particles on actuation of the inhaler; the examples concerning ipratropium bromide however refer to formulations in which the active ingredient concentrations corresponded to the usual single doses (20-40 μg). Said formulations proved to be pharmaceutically equivalent to the presently marketed formulations, consisting of CFC suspensions (Ganderton D et al. J. Aerosol Med. 1999, 12, 119).
- It has now been found that by using a low volatility component with suitable solvent power for the active ingredient, homogeneous solution formulations are obtained even in the presence of concentrations of an anticholinergic quaternary ammonium salt comprised between 0.11% and 1.14% by weight (which equates to 0.11-1.14 g of active ingredient per 100 g of formulation). In particular, it is possible to prepare homogeneous solution formulations in the presence of 0.14%-0.28% by weight ipratropium bromide corresponding to single doses ranging from 80 to 320 μg.
- The use of a low volatility component allows to minimize the amount of cosolvent, in this case ethanol, added to the formulation and hence to avoid the negative effects on the respirable/therapeutically effective dose due to the increase of its relative percentage.
- In the formulations of the invention, the median aerodynamic diameter (MAD) of the droplets remains substantially unchanged at increasing concentrations, therefore the respirable dose is directly related to the dose obtained on actuation of the inhaler. As a consequence, the increase in the respirable fraction concentration remains steady. Contrary to what reported in the prior art (Dolovich M Aerosol Science and Technology 1995, 22, 392-399) it has in fact surprisingly been found that in the formulations of the invention the respirable fraction does not decrease as the single dose increases. Furthermore, by suitably adjusting the actuator orifice diameter, it is possible, as the delivered dose increases, to steadily increase the respirable dose so that this is also linearly related to the dose of the CFC suspension formulations presently available on the market. Said feature makes the formulations of the invention therapeutically preferable as they avoid possible problems related to a non-linear response, such as accumulation, greater side effects or vice versa less effective therapeutical action.
- WO 94/13262 generically disclosed and claimed aerosol HFA solution formulations comprising 0.001%-2.5% of ipratropium bromide in the presence of ethanol as cosolvent and of small amounts of organic or inorganic acids. The specific examples however only relate to formulations with active ingredient concentrations (0.0187%-0.0748% by weight) corresponding to doses for single actuation ranging from 10 to 40 μg and containing 15% by weight of ethanol. Furthermore, organic or inorganic acids are used for ensuring higher chemical stability of the active ingredient, and not for solving the technical problem related with the preparation of high dosage formulations providing a respirable dose therapeutically effective and directly related to the concentration.
- The Applicant has also proved that formulations prepared according to the teaching of said application, with high concentrations of ipratropium bromide, require the use of ethanol in remarkable percentages which significantly jeopardize the performances in terms of respirable fraction. It has been indeed demonstrated that, in solution formulation only consisting of HFA as a propellant and ethanol as a co-solvent, the amount of ethanol necessary to solubilize ipratropium bromide in concentrations corresponding to single doses ranging from 80 to 160 μg is of at least about 19% by weight. On the other hand, formulations containing such a large amount of ethanol, of at least 19% by weight, give rise to a reduced respirable dose and a decrease in the MAD.
- The formulations of the invention can be prepared as described in WO 98/56349 and comprise a quaternary ammonium salt provided of anticholinergic action, such as oxitropium bromide, tiotropium bromide, ipratropium bromide in a concentration that, depending on the characteristics of the active ingredient, ranges from 0.11% to 1.14% by weight and which, in turn, could give rise, by suitably adjusting the volume of the metering chamber, to single doses ranging from 60 to 640 μg. More preferably, the active ingredient is a quaternary ammonium salt provided with anticholinergic action in a concentration ranging from 0.12% to 0.56% by weight.
- Even more preferably, the active ingredient is ipratropium bromide in a concentration ranging from 0.14% to 0.28% by weight. According to the volume of the metering chamber, the formulation containing 0.14% ipratropium bromide can be used for delivering single doses of 80 and 160 μg, while that containing 0.28% for single doses of 160 and 320 μg. Advantageously, the low volatility component has a vapor pressure at 25° C. not above 0.1 kPa, preferably not above 0.05 pKa. Particularly suitable for the use of the invention are glycols, in particular propylene glycol, polyethylene glycol and most preferably glycerol. However, the invention also comprises all the substances, alone or in admixture, having similar vapor pressure characteristics and suitable solvent power for the active ingredients belonging to the anticholinergic quaternary ammonium salts. The composition preferably contains at least 0.2%, more preferably 1% by weight of said component and anyway no more than 6%.
- The cosolvent has advantageously higher polarity than the propellant and is preferably an alcohol, more preferably ethanol. In this case, the amount of cosolvent in the composition is below 19% by weight, preferably it does not exceed 15% by weight more preferably it does not exceed 13% by weight.
- All the percentages are expressed as gram per 100 g of formulation.
- Preferred hydrofluoroalkane propellants are HFA 134a, HFA 227 or mixtures thereof.
- The formulations of the invention are preferably stored in pressurized inhalers for aerosol, part or all of their inner metal surfaces being made of anodized aluminium, stainless steel or coated with an inert organic coating agent. It has, in fact, been observed that in this type of cans the active ingredient remains chemically stable during storage, even at concentrations higher than 0.11% by weight. The inhalers can be equipped with any suitable conventional or unconventional dispensing valve, preferably a metered dose valve as well as any suitable conventional or unconventional metering chamber. Advantageously, the inhalers are equipped with an actuator with orifice diameter from 0.25 to 0.50 mm, preferably 0.3 mm and with a metering chamber with a volume from 25 μl to 100 μl. However, the volume of metering chamber and the orifice diameter of the actuator will be suitably selected by the person skilled in order to deliver the desired single dose as well as to the best performances in term of respirable dose.
- Finally, the invention relates to, the use of said formulations in the treatment of bronchopulmonary diseases, in particular chronic obstructive pulmonary disease.
- Specific embodiments of the invention are described in detail in the following.
- The invention refers also to a process for the preparation of pharmaceutical formulations according to claims 1-6 which consists in filling the components into the metered dose inhaler in the following order: active ingredient, low volatility component, cosolvent and finally propellant through the valve.
- The aerosol formulations of the invention described below are prepared according to the following method. The components necessary to the formulation are transferred into 12 ml aerosol cans in the following order: drug, low volatility component, absolute ethanol.
- After crimping the valve onto the can, the propellant is added through the valve. The weight gain of the can after addition of each component is recorded to evaluate the weight percentage of each component in the formulation.
Amounts Dose of a single Per unit actuation Components mg % by weight μg Ipratropium bromide 19.2-38.4 0.14-0.28 80-320 Absolute ethanol 13 — Glycerol 1 — HFA 134a q.s. to 13714 — — - The aerodynamic particle size distribution of each tested formulation was characterized using a Multistage Cascade Impactor according to the procedure described in European Pharmacopoeia 2nd edition, 1995, part V.5.9.1, pages 15-17. In this specific case, an Andersen Cascade Impactor (ACI) was used.
- Results were obtained as a mean of 3-4 cans. For each device, 5-25 cumulative actuations were carried out after discarding the first 5.
- Deposition of the drug on each ACI plate was determined by high pressure liquid chromatography (HPLC). Mean metered dose was calculated from the cumulative deposition in the actuator and ACI (stages); mean delivered dose was calculated from the cumulative deposition in the ACI. Mean respirable dose (fine particle dose) was obtained from the deposition on Stages 3 to filter corresponding to particles ≦4.71 μm, divided by the number of actuations per experiment.
- MAD and associated GSD (standard geometric deviation) values were obtained from probit transformation of cumulative percent undersize—log (ACI effective cut-off particle size diameter) and linear regression analysis of the resultant data, (Ph. Eur. Supp 1999).
- The delivery characteristics of formulations containing increasing amounts of ipratropium bromide present in cans equipped with standard Bespack BK 360 actuators with 0.3 mm orifice diameter and a metering chamber volume of 50 μl are reported in Table 1. The use of a metering chamber volume of 100 μl allows a 320 kg strength variant of the 160 μg formulation.
- It can be observed that MAD is substantially unaffected by the active ingredient concentration, so that the amount of droplets with size lower than 4.7 μm (respirable dose) is linearly related to the nominal dose.
- Only at a nominal dose of 320 μg, a slight decrease of the respirable fraction is observed.
TABLE 1 Performances of formulations containing as active ingredient ipratropium bromide at different concentrations, such as to give raise to the reported nominal doses. Nominal Metered Delivered Respirable Respirable Dose(1) dose(2) dose(3) dose(4) fraction(5) MAD (μg) (μg) (μg) (μg) (%) (μm) GSD 20 20.6 ± 1.6 18.8 ± 1.6 6.8 ± 1.1 33.3 ± 3.8 2.4 ± 0.3 2.1 ± 0.8 40 42.2 ± 1.8 38.7 ± 1.9 11.7 ± 1.2 31.5 ± 3.8 2.2 ± 0.1 2.1 ± 0.1 80 78.5 ± 0.4 72.7 ± 0.6 23.3 ± 4.5 32.0 ± 6.1 2.7 ± 0.3 2.2 ± 0.1 160 161.1 ± 12.5 149.2 ± 10.7 45.2 ± 2.5 30.4 ± 3.5 2.5 ± 0.2 2.3 ± 0.1 320 321.4 ± 2.0 290.5 ± 1.9 73.2 ± 3.0 25.2 ± 1.2 2.9 ± 0.2 2.6 ± 0.1 - Determination of the Solubility of Ipratropium Bromide in Ethanol
- 20.1±0.2 mg of ipratropium bromide is weighed into Saint-Gobain aerosol bottles.
- Increased volumes of absolute ethanol are added to the same aerosol bottle using a Gilson variable pipette.
- A Bespak BK357 valve is crimped onto the same aerosol bottle. Shaking and ultra-sonication ensured a homogeneous solution was formed before a pre-determined mass of HFA 134a is filled through the valve.
- The individual weight of ipratropium bromide, ethanol, and HFA134a addition is recorded using a four-figure analytical balance.
- Final formulations have a total volume into cans having a volume of 12±0.3 ml (20° C.), corresponding to that of the standard aerosol cans. The components are expressed as percentages by weight of the total formulation. Visual appearance of all manufactured formulations is assessed using a polarized light source immediately after preparation and again after 3 weeks storage at 4.0±0.4° C. Observations where further confirmed after 10 months storage at 4.0±0.4° C.
- Ipratropium bromide is found to crystallise for the following ethanol levels (% by weight): 14.7, 15.0, 16.8, 17.2, 17.5, 17.9 while is found not to crystallise for the following ethanol levels: 18.9, 19.2, 20.6, 21.0, 21.3, 22.2, 22.6, 23.0, 23.4, 24.5, 29.7, 38.9, 40.1.
- Therefore about 19% by weight of ethanol is required to solubilise an amount of ipratropium bromide (0.14% by weight) which could give rise, by suitably selecting the volume of the metering chamber, to single doses of 80 and 160 μg within a HFA 134a formulation.
- The formula of the corresponding composition is reported below.
Amount Dose of a single Per unit actuation Components mg % by weight μg Ipratropium bromide 20.1 0.14 80-160 Absolute ethanol 2735 19 — HFA 134a q.s. to 14397 — — - Delivery performances of the HFA formulations corresponding to single nominal doses of 80 and 160 μg
- The delivery characteristics of the formulation in cans equipped with standard Bespack BK 360 actuators with 0.3 mm orifice diameter and a metering chamber volume of 50 μl are reported in Table 2. The use of a metering chamber volume of 100 μl allows a 160 μg strength variant of the 80 μg formulation.
- The relevant parameters were determined as described in Example 1.
- It can be observed that, the formulation containing an ethanol level of 19% by weight depresses the respirable dose (≦4.7 μm); it also reduces the MAD from 2.2-2.9 μm to 1.2-1.3 μm; and increases the Geometric Standard Deviation (GSD) from 2.1-2.6 to 4.3-6.2.
TABLE 2 Performances of a the formulation without the low volatility component containing as active ingredient ipratropium bromide corresponding to nominal doses of 80 and 160 μg. Nominal Metered Delivered Respirable Respirable Dose dose dose dose fraction MAD (μg) (μg) (μg) (μg) (%) (μm) GSD 80 76.6 ± 1.6 70.0 ± 1.0 20.0 ± 1.3 28.7 ± 1.5 1.2 ± 0.1 4.3 ± 0.4 160 158.5 ± 2.0 144.2 ± 1.7 31.4 ± 1.3 21.8 ± 1.1 1.3 ± 0.2 6.2 ± 0.2
Claims (7)
1. A pharmaceutical formulation for use in a metered dose aerosol inhaler, comprising an active ingredient consisting of an anticholinergic quaternary ammonium salt in solution in a mixture consisting of a hydrofluoroalkane propellant, a cosolvent and a low volatility component, wherein the concentration of the active in gredient ranges from 0.11% to 1.14% by weight and the single dose delivered on actuation ranges from 60 to 640 μg.
2. A formulation according to claim 1 , in which the active ingredient is ipratropium bromide in concentrations ranging from 0.14 to 0.28% by weight.
3. A formulation according to claims 1-2, in which the propellant is HFA 134a, the low volatility component is glycerol and the cosolvent is ethanol.
4. A formulation according to claims 1-3 in which the ethanol percentage is 13% by weight and that of glycerol is 1% by weight.
5. Pharmaceutical formulations according to claims 1-4 for use in pressurized metered dose aerosol inhalers in the treatment of bronchopulmonary diseases, and in particular chronic obstructive pulmonary disease.
6. Compositions according to any one of claims 1-5 contained in metered dose aerosol inhalers having part or all of the inner metal surfaces made of anodized aluminium, stainless steel or coated with an inert organic coating agent.
7. A process for the preparation of pharmaceutical formulations according to claims 1-6 which consists in filling the components into the metered dose inhaler in the following order: active ingredient, low volatility component, cosolvent and finally propellant through the valve.
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Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5653961A (en) * | 1995-03-31 | 1997-08-05 | Minnesota Mining And Manufacturing Company | Butixocort aerosol formulations in hydrofluorocarbon propellant |
US5683677A (en) * | 1988-12-06 | 1997-11-04 | Riker Laboratories, Inc. | Medicinal aerosol formulations |
US6006745A (en) * | 1990-12-21 | 1999-12-28 | Minnesota Mining And Manufacturing Company | Device for delivering an aerosol |
US6045778A (en) * | 1992-12-09 | 2000-04-04 | Boehringer Ingelheim Pharmaceuticals, Inc. | Stabilized medicinal aerosol solution formulations |
US6143277A (en) * | 1995-04-14 | 2000-11-07 | Glaxo Wellcome Inc. | Metered dose inhaler for salmeterol |
US6149892A (en) * | 1995-04-14 | 2000-11-21 | Glaxowellcome, Inc. | Metered dose inhaler for beclomethasone dipropionate |
US6253762B1 (en) * | 1995-04-14 | 2001-07-03 | Glaxo Wellcome Inc. | Metered dose inhaler for fluticasone propionate |
US6290930B1 (en) * | 1998-12-18 | 2001-09-18 | Baker Norton Pharmaceuticals, Inc. | Pharmaceutical solution aerosol formulations containing fluoroalkanes and budesonide |
US6413496B1 (en) * | 1996-12-04 | 2002-07-02 | Biogland Ireland (R&D) Limited | Pharmaceutical compositions and devices for their administration |
US6451285B2 (en) * | 1998-06-19 | 2002-09-17 | Baker Norton Pharmaceuticals, Inc. | Suspension aerosol formulations containing formoterol fumarate and a fluoroalkane propellant |
US20030066525A1 (en) * | 1998-11-25 | 2003-04-10 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (MDI) |
US20030190278A1 (en) * | 2002-04-08 | 2003-10-09 | Yan Mei Wang | Controlled deposition of nanotubes |
US20030206870A1 (en) * | 1997-06-13 | 2003-11-06 | Chiesi Farmaceutici S.P.A. | Pharaceutical aerosol composition |
US6645466B1 (en) * | 1998-11-13 | 2003-11-11 | Jago Research Ag | Dry powder for inhalation |
Family Cites Families (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3361306A (en) | 1966-03-31 | 1968-01-02 | Merck & Co Inc | Aerosol unit dispensing uniform amounts of a medically active ingredient |
US3622053A (en) | 1969-12-10 | 1971-11-23 | Schering Corp | Aerosol inhaler with flip-up nozzle |
MX3864E (en) | 1975-05-27 | 1981-08-26 | Syntex Corp | A PROCESS TO PREPARE THE CRYSTALLINE COMPOUND 6-FLUIRO-11B 21-DIHIROXI-16 17-ISOPROPILIDENDIOXIPREGNA-1 4-DIEN-3 20-DIONA |
US4185100A (en) | 1976-05-13 | 1980-01-22 | Johnson & Johnson | Topical anti-inflammatory drug therapy |
US4499108A (en) | 1983-06-08 | 1985-02-12 | Schering Corporation | Stable pleasant-tasting albuterol sulfate pharmaceutical formulations |
IT1196142B (en) | 1984-06-11 | 1988-11-10 | Sicor Spa | PROCEDURE FOR THE PREPARATION OF 16.17-ACETALS OF PREGNANIC DERIVATIVES AND NEW COMPOUNDS OBTAINED |
US5192528A (en) | 1985-05-22 | 1993-03-09 | Liposome Technology, Inc. | Corticosteroid inhalation treatment method |
GB8828477D0 (en) | 1988-12-06 | 1989-01-05 | Riker Laboratories Inc | Medical aerosol formulations |
IL97065A (en) | 1990-02-02 | 1994-01-25 | Fisons Plc | Aerosol propellant compositions |
EP0563048A1 (en) | 1990-12-19 | 1993-10-06 | Smithkline Beecham Corporation | Aerosol formulations |
EP0504112A3 (en) | 1991-03-14 | 1993-04-21 | Ciba-Geigy Ag | Pharmaceutical aerosol formulations |
WO1992020391A1 (en) | 1991-05-21 | 1992-11-26 | Abbott Laboratories | Aerosol inhalation device |
EP0601036B1 (en) | 1991-08-29 | 1999-04-28 | Broncho-Air Medizintechnik AG | Medical device for inhalating doses of spray |
NZ244439A (en) | 1991-09-25 | 1994-01-26 | Fisons Plc | Pressurised aerosol compositions comprising hydrofluoroalkane, dispersed |
IL104068A (en) | 1991-12-12 | 1998-10-30 | Glaxo Group Ltd | Surfactant-free pharmaceutical aerosol formulation comprising 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoro-n- propane as propellant |
NZ246421A (en) | 1991-12-18 | 1996-05-28 | Minnesota Mining & Mfg | Aerosol formulation containing a drug and a propellant and which is substantially free of surfactant |
DE4230876A1 (en) | 1992-03-17 | 1993-09-23 | Asta Medica Ag | COMPRESSED GAS PACKS USING POLYOXYETHYLENE GLYCERYL OLEATES |
SE9203743D0 (en) | 1992-12-11 | 1992-12-11 | Astra Ab | EFFICIENT USE |
AU4066693A (en) | 1992-12-23 | 1994-07-19 | Bernhard Hugemann | Compacted drug body for use in the mechanical generation of inhalable active-substance particles |
WO1994021228A1 (en) | 1993-03-17 | 1994-09-29 | Minnesota Mining And Manufacturing Company | Aerosol formulation containing a diol-diacid derived dispersing aid |
ES2122261T3 (en) | 1993-03-17 | 1998-12-16 | Minnesota Mining & Mfg | AEROSOL FORMULATION CONTAINING A DISPERSION ADJUVANT DERIVED FROM AN ESTER, AMIDA OR MERCAPTOESTER. |
US6596260B1 (en) | 1993-08-27 | 2003-07-22 | Novartis Corporation | Aerosol container and a method for storage and administration of a predetermined amount of a pharmaceutically active aerosol |
EP0735884B1 (en) | 1993-12-20 | 2000-04-26 | Minnesota Mining And Manufacturing Company | Flunisolide aerosol formulations |
GB9425160D0 (en) | 1994-12-10 | 1995-02-08 | Glaxo Group Ltd | Medicaments |
CN1088580C (en) | 1994-12-22 | 2002-08-07 | 阿斯特拉公司 | Aerosol drug formulations |
GB9426252D0 (en) | 1994-12-24 | 1995-02-22 | Glaxo Group Ltd | Pharmaceutical composition |
DE4446891A1 (en) | 1994-12-27 | 1996-07-04 | Falk Pharma Gmbh | Stable aqueous budesonide solution |
DK0820279T3 (en) | 1995-04-14 | 2002-10-07 | Smithkline Beecham Corp | Dosing metered inhaler for Albuterol |
GB9612297D0 (en) | 1996-06-11 | 1996-08-14 | Minnesota Mining & Mfg | Medicinal aerosol formulations |
EP0914143A1 (en) | 1996-07-08 | 1999-05-12 | Rhone-Poulenc Rorer Limited | Medicinal cyclosporin-a aerosol solution formulation |
WO1998003533A1 (en) | 1996-07-24 | 1998-01-29 | Oligos Etc. And Oligos Therapeutics, Inc. | Antisense oligonucleotides as antibacterial agents |
GB9616237D0 (en) | 1996-08-01 | 1996-09-11 | Norton Healthcare Ltd | Aerosol formulations |
GB9620187D0 (en) | 1996-09-27 | 1996-11-13 | Minnesota Mining & Mfg | Medicinal aerosol formulations |
AU726510B2 (en) | 1996-12-04 | 2000-11-09 | Consort Medical Plc | Pharmaceutical compositions and devices for their administration |
DK1014943T3 (en) | 1997-02-05 | 2002-10-14 | Jago Res Ag | Medical aerosol formulations |
US6126919A (en) | 1997-02-07 | 2000-10-03 | 3M Innovative Properties Company | Biocompatible compounds for pharmaceutical drug delivery systems |
US5891419A (en) | 1997-04-21 | 1999-04-06 | Aeropharm Technology Limited | Environmentally safe flunisolide aerosol formulations for oral inhalation |
GB2326334A (en) * | 1997-06-13 | 1998-12-23 | Chiesi Farma Spa | Pharmaceutical aerosol compositions |
BR7702049U (en) | 1997-09-05 | 1999-09-14 | Chiesi Farma Spa | Spray nozzle for use in an oral inhaler for aerosol medicines |
US5954047A (en) | 1997-10-17 | 1999-09-21 | Systemic Pulmonary Development, Ltd. | Methods and apparatus for delivering aerosolized medication |
US6045784A (en) | 1998-05-07 | 2000-04-04 | The Procter & Gamble Company | Aerosol package compositions containing fluorinated hydrocarbon propellants |
SE9802073D0 (en) | 1998-06-11 | 1998-06-11 | Astra Ab | New use |
AU759222B2 (en) | 1998-06-18 | 2003-04-10 | Boehringer Ingelheim Pharmaceuticals, Inc. | Pharmaceutical formulations for aerosols with two or more active substances |
US6241969B1 (en) | 1998-06-26 | 2001-06-05 | Elan Corporation Plc | Aqueous compositions containing corticosteroids for nasal and pulmonary delivery |
NZ509328A (en) | 1998-07-24 | 2002-11-26 | Jago Res A | Medicinal aerosol formulations |
ES2193726T3 (en) | 1998-08-04 | 2003-11-01 | Jago Res Ag | MEDICINAL AEROSOL FORMULATIONS. |
DE19847969A1 (en) | 1998-10-17 | 2000-04-20 | Boehringer Ingelheim Pharma | Stable liquid formulation of formoterol in solution or suspension medium, used after dilution for treatment of asthma by inhalation |
BR9914507A (en) | 1998-10-17 | 2001-06-26 | Boehringer Ingelheim Pharma | Active substance concentrate with formoterol, suitable for storage |
US6004537A (en) | 1998-12-18 | 1999-12-21 | Baker Norton Pharmaceuticals, Inc. | Pharmaceutical solution aerosol formulations containing fluoroalkanes, budesonide and formoterol |
SK286981B6 (en) | 1999-03-05 | 2009-08-06 | Chiesi Farmaceutici S.P.A. | Powder for use in a dry powder inhaler, carrier for the powder and method for the production of powder |
US6315985B1 (en) | 1999-06-18 | 2001-11-13 | 3M Innovative Properties Company | C-17/21 OH 20-ketosteroid solution aerosol products with enhanced chemical stability |
DE60019167T2 (en) | 1999-12-24 | 2006-05-11 | Glaxo Group Ltd., Greenford | PHARMACEUTICAL AEROSOL FORMULATION CONTAINING SALMETEROL AND FLUTICASONE |
IT1317846B1 (en) | 2000-02-22 | 2003-07-15 | Chiesi Farma Spa | FORMULATIONS CONTAINING AN ANTICOLINERGIC DRUG FOR THE TREATMENT OF CHRONIC OBSTRUCTIVE BRONCOPNEUMOPATHY. |
-
2000
- 2000-02-22 IT IT2000MI000312A patent/IT1317846B1/en active
-
2001
- 2001-02-19 AT AT01919303T patent/ATE308317T1/en not_active IP Right Cessation
- 2001-02-19 WO PCT/EP2001/001833 patent/WO2001062227A2/en active IP Right Grant
- 2001-02-19 CA CA002400691A patent/CA2400691A1/en not_active Abandoned
- 2001-02-19 ES ES01919303T patent/ES2249424T3/en not_active Expired - Lifetime
- 2001-02-19 BR BR0108584-0A patent/BR0108584A/en not_active Application Discontinuation
- 2001-02-19 EP EP01919303A patent/EP1257254B1/en not_active Expired - Lifetime
- 2001-02-19 DK DK01919303T patent/DK1257254T3/en active
- 2001-02-19 AU AU46450/01A patent/AU776742B2/en not_active Ceased
- 2001-02-19 DE DE60114571T patent/DE60114571T2/en not_active Expired - Fee Related
- 2001-02-19 US US10/204,307 patent/US6964759B2/en not_active Expired - Fee Related
- 2001-02-20 JO JO200126A patent/JO2381B1/en active
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5683677A (en) * | 1988-12-06 | 1997-11-04 | Riker Laboratories, Inc. | Medicinal aerosol formulations |
US5695743A (en) * | 1988-12-06 | 1997-12-09 | Riker Laboratories, Inc. | Medicinal aerosol formulations |
US6006745A (en) * | 1990-12-21 | 1999-12-28 | Minnesota Mining And Manufacturing Company | Device for delivering an aerosol |
US6045778A (en) * | 1992-12-09 | 2000-04-04 | Boehringer Ingelheim Pharmaceuticals, Inc. | Stabilized medicinal aerosol solution formulations |
US5653961A (en) * | 1995-03-31 | 1997-08-05 | Minnesota Mining And Manufacturing Company | Butixocort aerosol formulations in hydrofluorocarbon propellant |
US6143277A (en) * | 1995-04-14 | 2000-11-07 | Glaxo Wellcome Inc. | Metered dose inhaler for salmeterol |
US6149892A (en) * | 1995-04-14 | 2000-11-21 | Glaxowellcome, Inc. | Metered dose inhaler for beclomethasone dipropionate |
US6253762B1 (en) * | 1995-04-14 | 2001-07-03 | Glaxo Wellcome Inc. | Metered dose inhaler for fluticasone propionate |
US6413496B1 (en) * | 1996-12-04 | 2002-07-02 | Biogland Ireland (R&D) Limited | Pharmaceutical compositions and devices for their administration |
US20030206870A1 (en) * | 1997-06-13 | 2003-11-06 | Chiesi Farmaceutici S.P.A. | Pharaceutical aerosol composition |
US20030077230A1 (en) * | 1998-06-19 | 2003-04-24 | Blondino Frank E. | Pressurized metered dose inhalers and pharmaceutical aerosol fomulations |
US6451285B2 (en) * | 1998-06-19 | 2002-09-17 | Baker Norton Pharmaceuticals, Inc. | Suspension aerosol formulations containing formoterol fumarate and a fluoroalkane propellant |
US6645466B1 (en) * | 1998-11-13 | 2003-11-11 | Jago Research Ag | Dry powder for inhalation |
US20030066525A1 (en) * | 1998-11-25 | 2003-04-10 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (MDI) |
US20040096399A1 (en) * | 1998-11-25 | 2004-05-20 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (MDI) |
US6290930B1 (en) * | 1998-12-18 | 2001-09-18 | Baker Norton Pharmaceuticals, Inc. | Pharmaceutical solution aerosol formulations containing fluoroalkanes and budesonide |
US20030190278A1 (en) * | 2002-04-08 | 2003-10-09 | Yan Mei Wang | Controlled deposition of nanotubes |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030190287A1 (en) * | 1997-06-13 | 2003-10-09 | Chiesi Farmaceutici S.P.A. | Pharaceutical aerosol composition |
US20040062720A1 (en) * | 1997-06-13 | 2004-04-01 | Chiesi Farmaceutici S.P.A. | Pharmaceutical aerosol composition |
US8420058B2 (en) | 1997-06-13 | 2013-04-16 | Chiesi Farmaceutici S.P.A. | Pharmaceutical aerosol composition |
US20090311196A1 (en) * | 1997-06-13 | 2009-12-17 | Chiesi Farmaceutici S.P.A | Pharmaceutical aerosol composition |
US7601336B2 (en) | 1997-06-13 | 2009-10-13 | Chiesi Farmaceutici S.P.A. | Pharmaceutical aerosol composition |
US7347199B1 (en) | 1998-11-25 | 2008-03-25 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (MDI) |
US8142763B2 (en) | 1998-11-25 | 2012-03-27 | Chiesi Farmaceutici S.P.A. | Pressurized metered dose inhalers (MDI) containing a solution comprising ipratropium bromide, HFA propellant, and co-solvent and comprising a container with a specific internal surface composition and/or lining |
US20050142071A1 (en) * | 1998-11-25 | 2005-06-30 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (MDI) |
US20080115782A1 (en) * | 1998-11-25 | 2008-05-22 | Chiesi Farmaceutici S.P.A. | Pressurised metered dose inhalers (mdi) |
US20040033201A1 (en) * | 1999-06-18 | 2004-02-19 | 3M Innovative Properties Company | Process for making chemically stable C-17/21 OH 20-ketosteroid aerosol products |
US20050220717A1 (en) * | 1999-06-18 | 2005-10-06 | 3M Innovative Properties Company | Steroid solution aerosol products with enhanced chemical stability |
US6967017B1 (en) | 1999-07-23 | 2005-11-22 | Chiesi Farmaceutici S.P.A. | Formulations of steroid solutions for inhalatory administration |
US20050034720A1 (en) * | 2000-01-07 | 2005-02-17 | Gaetano Brambilla | Aerosol inhaler |
US6964759B2 (en) | 2000-02-22 | 2005-11-15 | Chiesi Farmaceutici S.P.A. | Formulations containing an anticholinergic drug for the treatment of chronic obstructive pulmonary disease |
US20030190289A1 (en) * | 2000-05-12 | 2003-10-09 | David Lewis | Formulations containing a glucocorticoid drug for the treatment of bronchopulmonary diseases |
US20060083693A1 (en) * | 2000-05-22 | 2006-04-20 | Chiesi Farmaceutici S.P.A. | Stable pharmaceutical solution formulations for pressurised metered dose inhalers |
US7018618B2 (en) | 2000-05-22 | 2006-03-28 | Chiesi Farmaceutici S.P.A. | Stable pharmaceutical solution formulations for pressurized metered dose inhalers |
US8168598B2 (en) | 2001-07-02 | 2012-05-01 | Chiesi Farmaceutici S.P.A. | Optimised formulation of tobramycin for aerosolization |
US20050163722A1 (en) * | 2001-07-02 | 2005-07-28 | Chiesi Farmaceutici S.P.A. | Optimised formulation of tobramycin for aerosolization |
US7696178B2 (en) | 2001-07-02 | 2010-04-13 | Chiesi Farmaceutici S.P.A. | Optimised formulation of tobramycin for aerosolization |
US20100098642A1 (en) * | 2001-07-02 | 2010-04-22 | Chiesi Farmaceutici S.P.A. | Optimised formulation of tobramycin for aerosolization |
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US20060205758A1 (en) * | 2002-09-13 | 2006-09-14 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Method for reducing the mortality rate |
US20040102469A1 (en) * | 2002-09-13 | 2004-05-27 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Method for reducing the mortality rate |
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Also Published As
Publication number | Publication date |
---|---|
EP1257254B1 (en) | 2005-11-02 |
IT1317846B1 (en) | 2003-07-15 |
AU4645001A (en) | 2001-09-03 |
DE60114571D1 (en) | 2005-12-08 |
ITMI20000312A0 (en) | 2000-02-22 |
ATE308317T1 (en) | 2005-11-15 |
DE60114571T2 (en) | 2006-06-08 |
ES2249424T3 (en) | 2006-04-01 |
WO2001062227A2 (en) | 2001-08-30 |
EP1257254A2 (en) | 2002-11-20 |
US6964759B2 (en) | 2005-11-15 |
WO2001062227A3 (en) | 2002-03-07 |
DK1257254T3 (en) | 2006-03-20 |
CA2400691A1 (en) | 2001-08-30 |
ITMI20000312A1 (en) | 2001-08-22 |
BR0108584A (en) | 2003-03-25 |
AU776742B2 (en) | 2004-09-23 |
JO2381B1 (en) | 2006-12-12 |
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