CN110876720A - Application of edetate to properly change surface tension of tiotropium bromide spray - Google Patents
Application of edetate to properly change surface tension of tiotropium bromide spray Download PDFInfo
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- CN110876720A CN110876720A CN201811038689.1A CN201811038689A CN110876720A CN 110876720 A CN110876720 A CN 110876720A CN 201811038689 A CN201811038689 A CN 201811038689A CN 110876720 A CN110876720 A CN 110876720A
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- Prior art keywords
- tiotropium bromide
- edetate
- surface tension
- spray
- propellant
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- 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 title claims abstract description 33
- 229960000257 tiotropium bromide Drugs 0.000 title claims abstract description 33
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229940009662 edetate Drugs 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 title abstract description 23
- 230000008859 change Effects 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003380 propellant Substances 0.000 claims abstract description 17
- 239000000443 aerosol Substances 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 239000008194 pharmaceutical composition Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003002 pH adjusting agent Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- UEAVLBXLOZNDHT-UHFFFAOYSA-K calcium;sodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate Chemical compound [Na+].[Ca+2].OC(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEAVLBXLOZNDHT-UHFFFAOYSA-K 0.000 claims description 2
- 150000004677 hydrates Chemical class 0.000 claims description 2
- 229940110309 tiotropium Drugs 0.000 claims description 2
- LERNTVKEWCAPOY-DZZGSBJMSA-N tiotropium Chemical compound O([C@H]1C[C@@H]2[N+]([C@H](C1)[C@@H]1[C@H]2O1)(C)C)C(=O)C(O)(C=1SC=CC=1)C1=CC=CS1 LERNTVKEWCAPOY-DZZGSBJMSA-N 0.000 claims description 2
- 208000006673 asthma Diseases 0.000 abstract description 7
- 230000001684 chronic effect Effects 0.000 abstract description 4
- 206010035664 Pneumonia Diseases 0.000 abstract description 2
- 206010044302 Tracheitis Diseases 0.000 abstract description 2
- 208000023504 respiratory system disease Diseases 0.000 abstract description 2
- 102000005962 receptors Human genes 0.000 description 10
- 108020003175 receptors Proteins 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
- 229940079593 drug Drugs 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- MQLXPRBEAHBZTK-SEINRUQRSA-M tiotropium bromide hydrate Chemical compound O.[Br-].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 MQLXPRBEAHBZTK-SEINRUQRSA-M 0.000 description 5
- 208000000884 Airway Obstruction Diseases 0.000 description 4
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 4
- 208000037883 airway inflammation Diseases 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 230000028327 secretion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000144 pharmacologic effect Effects 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- WWJHRSCUAQPFQO-UHFFFAOYSA-M 4-DAMP methiodide Chemical compound [I-].C1C[N+](C)(C)CCC1OC(=O)C(C=1C=CC=CC=1)C1=CC=CC=C1 WWJHRSCUAQPFQO-UHFFFAOYSA-M 0.000 description 2
- 102000017925 CHRM3 Human genes 0.000 description 2
- 101150060249 CHRM3 gene Proteins 0.000 description 2
- 102000017924 CHRM4 Human genes 0.000 description 2
- 206010028116 Mucosal inflammation Diseases 0.000 description 2
- 201000010927 Mucositis Diseases 0.000 description 2
- 208000007101 Muscle Cramp Diseases 0.000 description 2
- 206010030111 Oedema mucosal Diseases 0.000 description 2
- 208000005392 Spasm Diseases 0.000 description 2
- 101100107916 Xenopus laevis chrm4 gene Proteins 0.000 description 2
- 210000000424 bronchial epithelial cell Anatomy 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000037888 epithelial cell injury Diseases 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229940071648 metered dose inhaler Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 210000003097 mucus Anatomy 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 210000002460 smooth muscle Anatomy 0.000 description 2
- 229940124818 soft mist inhaler Drugs 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 102000017926 CHRM2 Human genes 0.000 description 1
- 102000017923 CHRM5 Human genes 0.000 description 1
- 101150064612 CHRM5 gene Proteins 0.000 description 1
- 101150012960 Chrm2 gene Proteins 0.000 description 1
- 101150112752 M5 gene Proteins 0.000 description 1
- 102000014415 Muscarinic acetylcholine receptor Human genes 0.000 description 1
- 108050003473 Muscarinic acetylcholine receptor Proteins 0.000 description 1
- 229940121948 Muscarinic receptor antagonist Drugs 0.000 description 1
- 206010072170 Skin wound Diseases 0.000 description 1
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 description 1
- 229960004373 acetylcholine Drugs 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 210000005091 airway smooth muscle Anatomy 0.000 description 1
- NDAUXUAQIAJITI-UHFFFAOYSA-N albuterol Chemical compound CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 NDAUXUAQIAJITI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000005557 antagonist Substances 0.000 description 1
- 230000001078 anti-cholinergic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000812 cholinergic antagonist Substances 0.000 description 1
- 230000001713 cholinergic effect Effects 0.000 description 1
- 230000002759 chromosomal effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940113960 edetate calcium Drugs 0.000 description 1
- 229940124274 edetate disodium Drugs 0.000 description 1
- 230000002729 effect on secretion Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 108010054561 gastric mucus glycoproteins Proteins 0.000 description 1
- 210000002175 goblet cell Anatomy 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 208000030603 inherited susceptibility to asthma Diseases 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000030214 innervation Effects 0.000 description 1
- 229960001361 ipratropium bromide Drugs 0.000 description 1
- KEWHKYJURDBRMN-ZEODDXGYSA-M ipratropium bromide hydrate Chemical compound 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 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000420 mucociliary effect Effects 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 230000001734 parasympathetic effect Effects 0.000 description 1
- RMHMFHUVIITRHF-UHFFFAOYSA-N pirenzepine Chemical compound C1CN(C)CCN1CC(=O)N1C2=NC=CC=C2NC(=O)C2=CC=CC=C21 RMHMFHUVIITRHF-UHFFFAOYSA-N 0.000 description 1
- 229960004633 pirenzepine Drugs 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 229940044551 receptor antagonist Drugs 0.000 description 1
- 239000002464 receptor antagonist Substances 0.000 description 1
- 229960002052 salbutamol Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 210000004878 submucosal gland Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 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
- A61K9/0078—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy for inhalation via a nebulizer such as a jet nebulizer, ultrasonic nebulizer, e.g. in the form of aqueous drug solutions or dispersions
-
- 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
- A61K31/46—8-Azabicyclo [3.2.1] octane; Derivatives thereof, e.g. atropine, cocaine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
- A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
- A61K47/183—Amino acids, e.g. glycine, EDTA or aspartame
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/06—Antiasthmatics
-
- 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
- A61K9/10—Dispersions; Emulsions
- A61K9/12—Aerosols; Foams
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pulmonology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dispersion Chemistry (AREA)
- Otolaryngology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Emergency Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention relates to a tiotropium bromide spray for treating respiratory diseases, in particular asthma, chronic obstructive pneumonia, tracheitis and the like, wherein the application of edetate serving as a medicine composition which does not contain a propellant and consists of tiotropium bromide or hydrate thereof and water in changing the surface tension is disclosed.
Description
The technical field is as follows:
the invention relates to a tiotropium bromide spray for treating respiratory diseases, in particular asthma, chronic obstructive pneumonia, tracheitis and the like, wherein the application of edetate serving as a medicine composition which does not contain a propellant and consists of tiotropium bromide or hydrate thereof and water in changing the surface tension is disclosed.
Background art:
asthma is a chronic airway inflammation characterized by reversible airway obstruction and airway reactivity increase, the airway obstruction is caused by two factors of secretion increase, mucosal edema and inflammation stimulation smooth muscle spasm caused by bronchial mucosa inflammation, and the airway reactivity increase is also a result of bronchial epithelial cell injury caused by airway inflammation.
Asthma is a chronic airway inflammation characterized by reversible airway obstruction and airway reactivity increase, the airway obstruction is caused by two factors of secretion increase, mucosal edema and inflammation stimulation smooth muscle spasm caused by bronchial mucosa inflammation, and the airway reactivity increase is also a result of bronchial epithelial cell injury caused by airway inflammation.
Among them, potent anticholinergic drugs having high selectivity for airway muscarinic acetylcholine receptors (M receptors) have been attracting attention in recent years, the transmitter of parasympathetic postganglionic neurons that innervate the airways is acetylcholine, and the receptor on the effector is the M receptor. From the pharmacological point of view, the compounds are classified into M1, M2, M3 and M4 according to their affinity for receptor subtype-specific antagonists. Among them, the receptor M1, which has high affinity for pirenzepine and 4-DAMP; m2 receptor with high affinity for AF-DXll 6; the receptor with high affinity for 4-DAMP is called M3 receptor; the receptor with high affinity to P-F-HHSID is called M4 receptor. However, there are at least 5 different mAChR-encoding genes, designated m1, m2, m3, m4, m5, and the human genes are at chromosomal locations 1lq l 2-13, 7q 35-36, lq 43-44, 11q 12-11.2, 15q 26, respectively. M1, M2, M3 and M4 correspond to pharmacological M1, M2, M3 and M4, respectively. The protein expressed by the M5 gene exists only in an independent area of the brain, and the corresponding functional pharmacological expression is not found at present, so that M5 is not found temporarily. Airway M receptors play important roles in regulating airway smooth muscle tone, mucus glycoprotein and mucus synthesis and secretion, mucociliary clearance, and the like. The distribution and the function of each subtype of M receptor in the airway are closely related, the M3 receptor is mainly used for dominating submucosal glands, the M2 receptor has a regulation effect on secretion, and the direct effects of the M4 receptor and the M5 receptor are not found at present. Cholinergic innervation may also occur in goblet cells. M receptor antagonists are capable of dilating bronchi and inhibiting mucus secretion, and are important in the treatment of COPD, bronchial asthma, and the like. Anticholinergic agents have been used as first line agents in the treatment of COPD.
Ipratropium bromide is a drug with a relatively short duration of action, typically only 4 to 8 hours. Administration may be by means of a Metered Dose Inhaler (MDI) or an aerosol. In addition, it can be used as the maintenance drug of COPD by putting salbutamol and the combined preparation prepared in the same device. It is mainly limited in asthma treatment to control the symptoms at the time of acute attack. Tiotropium bromide appeared in the early 2000 years and its duration of action was at least 24 hours, so once daily dosing was recommended as a maintenance medication for COPD. Tiotropium bromide can be inhaled in the form of a dry powder formulation (DPI), but recently a new administration form of Soft Mist Inhaler (SMI) has emerged. Common respiratory tract inhalation preparations for treating asthma and the like comprise aerosol and dry powder inhalants, wherein the aerosol refers to a preparation which is packaged in a pressure-resistant container with a special valve system together with emulsion or suspension containing medicaments and a proper propellant, and the content is sprayed out in the form of mist by the pressure of the propellant when the aerosol is used for lung inhalation; the dry powder inhalant is a drug dosage form which is prepared by one or more than one drug, enters respiratory tract in a dry powder form after being administrated by a special administration device and plays a role of whole body or local; the aerosol is liquid and uses propellant, while the dry powder inhalant is solid containing carrier, there are obvious differences between two formulations from the view point of formulation, the key point of the aerosol formulation is to study the uniformity and stability of emulsion or suspension, and the key point of the dry powder inhalant formulation is to study the particle science technology between different solid particles. Spray refers to a formulation that does not contain a propellant and sprays a liquid into a mist by means of the pressure of a manual pump. It is obvious that the spray and the aerosol are most different from the former spray by external force, and the latter spray by internal pressure and propellant. The latter has the following disadvantages compared with the former: 1 are costly (due to the internal pressure vessels, valve systems and special production equipment). 2 the propellant has refrigerating effect, and is not suitable for stimulation caused by being used on wounded skin wound for many times. 3 the propellant has certain toxicity and is not suitable for patients with heart disease to use as inhalation aerosol. 4, explosion easily occurs.
The edetate can be chelated with various divalent and trivalent metals, and can be used as medicine. Has the function of chelating heavy metals, and can also be used as an auxiliary material to avoid the transformation of active ingredients under the action of metal ions.
The invention content is as follows:
we have surprisingly found the use of edetate as a means of modifying the surface tension of a pharmaceutical composition of matter consisting of tiotropium bromide or its hydrate, water, in the absence of propellant.
As the tiotropium bromide monohydrate and the tiotropium bromide are all dissolved in water within the technical scheme, the tiotropium bromide monohydrate and the tiotropium bromide have no influence on the preparation.
Use of edetate as a means of altering the surface tension of a pharmaceutical composition comprising tiotropium bromide or its hydrate, water, and no propellant.
The application is characterized in that the surface tension of a composition consisting of tiotropium bromide or a hydrate thereof and water is adjusted to 52 +/-2 mN/m by edetate.
The application is characterized in that the edetate is one or more of edetate disodium and edetate calcium sodium.
The use as described above, characterized in that tiotropium bromide or its hydrates is present in an amount of 0.2-0.5 mg/ml calculated as tiotropium.
The application is characterized in that an acidic pH value regulator can be added. The use as described above, characterized in that the acidic pH adjusting agent adjusts the pH of the composition to 3.0. + -. 0.2. The application is characterized in that the acidic pH value regulator is one or more of hydrochloric acid, phosphoric acid and acetic acid.
A tiotropium bromide aerosol medicine composition without a propellant is characterized by comprising tiotropium bromide or a hydrate thereof, edetate, an inorganic acidic pH value regulator and water, wherein the surface tension of the tiotropium bromide aerosol medicine composition is regulated to 52 +/-2 mN/m by the edetate under the condition that the pH is 3.0 +/-0.2.
A tiotropium bromide aerosol medicine composition without a propellant is characterized by comprising tiotropium bromide or a hydrate thereof, edetate, an inorganic acidic pH value regulator and water, wherein the surface tension of the tiotropium bromide aerosol medicine composition is regulated to 52 +/-2 mN/m by the edetate under the condition that the pH value is 3.0 +/-0.2.
The surface tension in the present invention is measured using the pendant drop method.
Detailed Description
The surface tension in the examples of the invention was determined by the pendant drop method at 20 ℃ using the DSA25S from Kruss (kluss) germany.
Example 1
The preparation method comprises the following steps: tiotropium bromide or tiotropium bromide monohydrate is mixed with water with pH value regulated with hydrochloric acid, and disodium edetate is used to regulate the surface tension of the solution.
100ml of pharmaceutical formulation:
example 2
The preparation method comprises the following steps: tiotropium bromide or tiotropium bromide monohydrate is mixed with water with pH value regulated with hydrochloric acid, and calcium sodium edetate is used to regulate the surface tension of the water solution.
100ml of pharmaceutical formulation:
the preparation method is the same as example 1.
Comparative example 1
The preparation method comprises the following steps: mixing tiotropium bromide or tiotropium bromide monohydrate with water with pH value adjusted by hydrochloric acid, and adjusting surface tension of the water solution by using Tween or span.
The preparation method is the same as example 1.
Spray particle size test
The pharmaceutical compositions obtained in examples and comparative examples were sprayed with a BI spray device, neruole, and the spray droplet size was measured with a german SYMPATEC laser particle sizer (HELOS-spray). The detection method comprises spraying 2 times before discarding the medicinal composition, measuring the average spray droplet diameter after spraying the medicinal composition, standing for 4 days, spraying 10 times again, and measuring the average spray droplet diameter.
Spray time test
The test method comprises the following steps: the pharmaceutical compositions obtained in examples and comparative examples were sprayed using a spray device available from BI corporation, nerolida, and the time from the start to the end of spraying was measured 10 times and averaged.
Spray velocity test
An experimental instrument: particle Dynamics Analysis (PDA) from Danish Dantec Dynamics A/S Using phase Doppler technology
The test method comprises the following steps: the pharmaceutical compositions obtained in examples and comparative examples were sprayed using a BI spray device-nerolides, and the axial velocity of the spray was measured at 0.8 second after the start of spraying.
The application of the edetate salt to the surface tension of the aerosol pharmaceutical composition which does not contain the propellant and consists of the tiotropium bromide or the hydrate thereof and the water is proved by the above examples, and the surface tension of the pharmaceutical composition is proved to have better effect by a spray particle size test, a spray time test and a spray speed test.
Claims (9)
1. Use of edetate as a means of altering the surface tension of a pharmaceutical composition comprising tiotropium bromide or its hydrate, water, and no propellant.
2. Use according to claim 1, characterized in that the edetate is used to adjust the surface tension of a composition comprising tiotropium bromide or its hydrate, water to 52 ± 2 mN/m.
3. The use as claimed in claim 1, wherein edetate is one or more of disodium edetate and calcium sodium edetate.
4. Use according to claim 1, characterized in that tiotropium bromide or its hydrates is present in an amount of 0.2-0.5 mg/ml calculated as tiotropium.
5. Use according to claim 1, characterized in that an acidic pH regulator is also added.
6. The use according to claim 5, wherein the acidic pH adjuster adjusts the pH of the composition to 3.0 ± 0.2.
7. The use of claim 5, wherein the acidic pH adjusting agent is one or more of hydrochloric acid, phosphoric acid, and acetic acid.
8. A tiotropium bromide aerosol medicine composition without a propellant is characterized by comprising tiotropium bromide or a hydrate thereof, edetate, an inorganic acidic pH value regulator and water, wherein the surface tension of the tiotropium bromide aerosol medicine composition is regulated to 52 +/-2 mN/m by the edetate under the condition that the pH is 3.0 +/-0.2.
9. A tiotropium bromide aerosol medicine composition without a propellant is characterized by comprising tiotropium bromide or a hydrate thereof, edetate, an inorganic acidic pH value regulator and water, wherein the surface tension of the tiotropium bromide aerosol medicine composition is regulated to 52 +/-2 mN/m by the edetate under the condition that the pH value is 3.0 +/-0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038689.1A CN110876720A (en) | 2018-09-06 | 2018-09-06 | Application of edetate to properly change surface tension of tiotropium bromide spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038689.1A CN110876720A (en) | 2018-09-06 | 2018-09-06 | Application of edetate to properly change surface tension of tiotropium bromide spray |
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| Publication Number | Publication Date |
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| CN110876720A true CN110876720A (en) | 2020-03-13 |
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|---|---|---|---|
| CN201811038689.1A Pending CN110876720A (en) | 2018-09-06 | 2018-09-06 | Application of edetate to properly change surface tension of tiotropium bromide spray |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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