EP2059231A1 - Pharmazeutische zusammensetzungen mit cefquinom - Google Patents
Pharmazeutische zusammensetzungen mit cefquinomInfo
- Publication number
- EP2059231A1 EP2059231A1 EP07802951A EP07802951A EP2059231A1 EP 2059231 A1 EP2059231 A1 EP 2059231A1 EP 07802951 A EP07802951 A EP 07802951A EP 07802951 A EP07802951 A EP 07802951A EP 2059231 A1 EP2059231 A1 EP 2059231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cefquinome
- composition according
- cetostearyl ether
- macrogol cetostearyl
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- A61K9/0034—Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
-
- 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
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
-
- 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
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
Definitions
- the present invention is concerned with a pharmaceutical composition for intrauterine administration of cefquinome and its use for the treatment of metritis in mammalian animals.
- Acute postpartum metritis ranks among the top health problems of fresh cows in dairy farming. At least one-fourth of all fresh cows experience acute metritis, an inflammation of the entire uterine wall caused by bacterial infection. Acute puerperal metritis occurs within two weeks postpartum. It results from contamination of the reproductive tract at parturition and often, but not invariably, follows complicated parturition.
- the causative organisms in cattle are most frequently Escherichia coli, Arcanobacterium (Actinomyces) pyogenes in association with gram-negative anaerobic bacteria such as Fusobacterium necrophorum and Prevotella spp. Metritis can cause reduced fertility and can lead to higher culling rates of female animals, especially cows.
- the severity of uterine inflammation varies from an acute septic metritis involving the entire thickness of the uterine wall to a mild superficial endometritis. (Bretzlaff K, "Rationale for Treatment of Endometritis in the Dairy Cow", Veterinary Clinics of North America: Food Animal Practice - VoI 3, No. 3, 593-607, 1987).
- Cefquinome is the first fourth-generation cephalosporin developed for use in veterinary medicine. It is a semi-synthetic aminothiazolyl cephalosporin resembling cefotaxime, but with a bicyclic pyridinium group at the C-3 position.
- Cefquinome proved highly effective against the most commonly isolated metritis pathogens (Sheldon, I et al "Minimum inhibitory concentrations of some antimicrobial drugs against bacteria causing uterine infections in cattle" The Veterinary Record, 155, 383-387, 2004).
- Such an advantageous pharmaceutical composition needs to be active against the major pathogens present, non- irritant to the uterine tissue, and should have an activity persisting for enough time to treat the infection successfully.
- the present invention provides a composition for cefquinome with such advantageous properties that causes effective levels of the antibiotic in the uterus of the mammal that are suitable for the control of important pathogens over a sufficient time.
- the present invention provides a topical pharmaceutical composition for intrauterine administration, characterised in that it comprises cefquinome in a base, said base comprising at least one medium chain triglyceride, at least one thickener and at least one macrogol cetostearyl ether.
- cefquinome when used herein includes pharmaceutically acceptable salts and esters thereof.
- a typical pharmaceutical composition according to the invention comprises 1 to 20 % by weight of cefquinome.
- the pharmaceutical composition comprises 2 to 10 % by weight of cefquinome, especially 2.5 to 6.0 %, most preferred 3.0 to 4.2 % by weight of cefquinome.
- cephalosporin salts can be incorporated in the current pharmaceutical composition.
- Various crystalline cephalosporin salts have been disclosed e.g. in European Patent No. EP 280157 and European Patent No. EP 71 1774.
- the current invention provides a pharmaceutical composition characterised in that the cefquinome is cefquinome sulphate.
- the base is selected so as to be non-irritant to the uterine tissue, veterinary acceptable, compatible with the antibacterial agent, and of a viscosity to permit administration, using a syringe at ambient temperature, including low winter temperatures.
- the base comprises a pharmaceutical acceptable low viscosity oily medium, such as medium chain triglyceride or a mixture of medium chain triglycerides.
- Medium chain triglycerides MCT oil
- MCT oil have fatty acid chains of 6 - 12 carbon atoms and for the medically refined grades of MCT oil each chain has 8 - 10 carbon atoms.
- the MCT oil may comprise either triglycerides of the C8-C10 fatty acids, or propylene glycoldiesters of these fatty acids or a mixture of both triglycerides and propylene glycol diesters.
- these C8 -C10 fatty acids are fully saturated, such as n-caprylic and n-capric acids.
- oils are for example: Aldo® MCT KFG, Aldo® TC, Calgene CC-33, Calgene CC-33-F, Calgene CC-33-L, Calgene CC-33-S, Captex® 300, Captex® 355, Crodamol GTCC, Estasan GT 8-40 3578, Estasan GT 8-60 3575, Estasan GT 8-60 3580, Estasan GT 8-65 3577, Estasan GT 8-65 3581 , Estasan GT 8-70 3579, Labrafac® LIPO, Labrafac® lipophile WL 1349, Lexol® GT-855, Lexol® GT-865, Miglyol® 810, Miglyol® 812, Myritol® 312, Myritol® 318, Neobee® 1053, Neobee® M-5, Neobee® O, Pelemol® CCT, Standamul® 318, Standa
- the composition according to the invention comprises a thickener.
- a thickener in a pharmaceutical formulation in general is useful to provide good suspending properties and increases the viscosity of the composition without negatively affecting the syringeability.
- the thickener is hydrogenated castor oil. In another embodiment the thickener is glycerol dibehenate. Alternatively combination thereof or mixtures with other thickening agents known in the art are employed.
- the composition has a viscosity that is not very temperature dependent to have a good syringeability also under cooler temperature conditions as during winter time.
- composition according to the present invention comprises 0.2 to 2.0% of the thickener.
- the base further comprises one or more macrogol cetostearyl ether.
- Macrogol cetostearyl ethers Polyoxyethylated cetylstearyl alcohols
- Macrogol cetostearyl ethers are non- ionic emulsifiers. In general they are used to stabilize oil in water emulsions.
- Macrogol cetostearyl ethers are manufactured by reacting higher saturated fatty alcohols with ethylene oxide. In the current composition they promote the dispersion of the oily suspension in the aqueous content of the uterus. They are e.g.
- a combination of Macrogol cetostearyl ether 12 (degree of ethoxylation 12, e.g. Eumulgin B1 PH, US DMF No. 17079) and Macrogol cetostearyl ether 20 (degree of ethoxylation 20, e.g. Eumulgin B2 PH, US dMF 17198, or SIMULSOL 58 PHA, Fa. SEPPIC, Polyoxyl 20 cetostearyl ether, 20 EO units) is employed.
- the ratio of Macrogol cetostearyl ether 12 and Macrogol cetostearyl ether 20 is from 1 : 10 to 10:1 , preferably 1 :5 to 5:1 , more preferably 1 :2 to 2:1.
- composition according to the present invention comprises 0.5 to 5.0% of the macrogol cetostearyl ether
- the pharmaceutical composition according to the current invention may further comprise additional pharmaceutical excipients known in the art. Such pharmaceutical excipients are e.g. described in "Gennaro, Remington: The Science and Practice of Pharmacy” (20. Edition, 2000) incorporated by reference herein.
- a more specific composition according to the present invention typically contains 1 to 10 % of cefquinome sulphate, 0.5 to 3 % of macrogol cetostearyl ether, 0.1 to 3 % hydrogenated castor oil and up to 100 % of Miglyol® grade 812.
- composition contemplated herein can, if desired, include more than one pharmacologically active ingredient.
- the current invention furthermore provides a process for preparing a veterinary composition as claimed in any of the preceding claims comprising the steps of mixing the medium chain triglyceride, thickener and macrogol cetostearyl ether to create the base and suspending the cefquinome in said base.
- the current invention provides a process according to the invention characterised in that the hydrogenated castor oil and macrogol cetostearyl ether are added to the medium chain triglyceride under gentle stirring and heating to form the base and the mixture is allowed to cool before adding the cefquinome.
- the current invention provides the use of the pharmaceutical composition according to the current invention for the manufacture of a medicament for the treatment or prevention of metritis, especially acute metritis in mammalian animals, especially in cows after parturition.
- Example 6 shows a pharmacokinetic study after intrauterine administration of the composition according to the invention.
- the composition according to the invention proved highly effective against the most commonly isolated metritis pathogens, (£. coli, A. pyogenes, Prevotella spp., Fu so bacterium spp.).
- an antibiotic should be present at a minimum concentration level in tissues or biological fluids, which is characterized by its MIC (Minimum Inhibitory Concentration) against a pathogen.
- the minimum concentration level, in the lochia and endometrium of postpartum cows that is considered to be efficacious, is determined by the MICs of cefquinome against the different pathogens.
- MIC Minimum Inhibitory Concentration
- Example 7 shows another pharmacokinetic study after intrauterine administration of the composition according to the invention compared with a known cefquinome sulphate formulation for intramammary administration in lactating cows.
- This Cobactan LC formulation contains 75 mg Cefquinome sulphate in a paraffinum liquidum base.
- example 7 shows that a topical formulation developed for other body cavities (udder) is less suitable for intrauterine administration.
- the veterinary composition according to the invention can be applied in general to all mammalian species that need treatment or prevention of metritis and bacterial infections of the uterus such as e.g. pigs, cattle, camel, buffalo, horses, goats, sheep, and companion animals such as cats, dogs, but especially to cows.
- the chosen formulation may be filled into the tube or syringe packs of the conventional type for intrauterine administration, i.e. connected to a catheter for insertion to allow extrusion directly into the uterus via the cervical canal.
- a single dose of the composition will normally contain 1 to 50 gram, preferably 15 to 35 gram of the composition.
- the particular amount of composition required for a particular treatment will vary, depending upon the species, age and weight of the host animal being treated, the particular disease to be guarded against, or treated, as well as the specific antimicrobial agent selected for the treatment, the route and the frequency of administration.
- the dose of cefquinome sulphate for the treatment of acute metritis in post partum cows is 900 mg of cefquinome for intrauterine administration.
- Example 1 Preparation of a cefquinome sulphate composition (100 kg)
- the manufacturing process encompasses the following steps:
- Example 2 Preparation of cefquinome sulphate composition (100 kg) 3.60 kg Cefquinome as sulphate
- Example 1 The composition is manufactured as disclosed in Example 1
- Example 4 Preparation of a cefquinome sulphate composition (100 kg) 3.60 kg Cefquinome as sulphate
- composition is manufactured as disclosed in Example 4.
- Cefquinome concentrations from the pharmacokinetic studies were compared to MICs of cefquinome against acute metritis pathogens.
- Cefquinome concentrations in lochia and endometrium were determined with validated microbiological assays. Cefquinome concentrations in plasma were determined with a validated HPLC assay.
- strains used to determine the MICs were isolated between 2000 to 2005, from cows with acute metritis from different European countries (France, Germany, Hungary and Netherlands). Strains were collected by intra-uterine swabbing, before any treatment.
- Table 1 MIC 5 O snd MIC 90 ( ⁇ g/mL of cefquinome) against key acute metritis pathogens.
- the median cefquinome concentration was above or equal to the MIC 50 of 3 of the main acute metritis pathogens for up to 72 hours after treatment, and above the MIC 90 for at least 48 hours after treatment.
- the median concentration of cefquinome was above the MIC 90 of the main acute metritis pathogens for more than 24 hours after treatment. Prolonged presence of cefquinome at antibacterial concentrations in endometrium and lochia can prevent dissemination of the bacteria beyond the uterus cavity and can decrease the intra-uterine bacterial load, allowing the cow to recover from the infection.
- cefquinome plasma concentrations measured can be considered as a marker for the endometrial tissue cefquinome concentration.
- the availability of cequinome within endometrial tissue is important for the successful treatment of metritis.
- Cobactan IU formulation according to the invention gives more plasmatic diffusion than the Cobactan LC formulation (also 600 mg), and therefore, leads to higher endometrial tissue concentrations.
- Cobactan IU Compared to Cobactan LC (with 600 mg cefquinome), Cobactan IU, provides a lower concentration (sufficient for antimicrobial activity), and with a prolonged release, which makes the Cobactan IU formulation more suitable for the control of metritis than the Cobactan LC formulation.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gynecology & Obstetrics (AREA)
- Reproductive Health (AREA)
- Urology & Nephrology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07802951A EP2059231A1 (de) | 2006-08-30 | 2007-08-28 | Pharmazeutische zusammensetzungen mit cefquinom |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84138706P | 2006-08-30 | 2006-08-30 | |
EP06119765 | 2006-08-30 | ||
EP07802951A EP2059231A1 (de) | 2006-08-30 | 2007-08-28 | Pharmazeutische zusammensetzungen mit cefquinom |
PCT/EP2007/058933 WO2008025773A1 (en) | 2006-08-30 | 2007-08-28 | Pharmaceutical compositions comprising cefquinome |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2059231A1 true EP2059231A1 (de) | 2009-05-20 |
Family
ID=38515712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07802951A Withdrawn EP2059231A1 (de) | 2006-08-30 | 2007-08-28 | Pharmazeutische zusammensetzungen mit cefquinom |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2059231A1 (de) |
AU (1) | AU2007291308A1 (de) |
CA (1) | CA2661099C (de) |
WO (1) | WO2008025773A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009012423A1 (de) * | 2009-03-10 | 2010-09-16 | Bayer Animal Health Gmbh | Zubereitung auf Ölbasis |
CN113952298B (zh) * | 2021-12-08 | 2023-02-17 | 江苏农牧科技职业学院 | 硫酸头孢喹肟纳米混悬液及其制备方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0898477B1 (de) * | 1996-05-10 | 2002-12-18 | PHARMACIA & UPJOHN COMPANY | Topische verabreichung von premafloxacin zur behandlung von systemischen bakteriellen erkrankungen |
WO2003063877A1 (en) * | 2002-02-01 | 2003-08-07 | Akzo Nobel N.V. | Cefquinome composition for intra-mammary administration in cattle |
BR0315513A (pt) * | 2002-10-25 | 2005-08-23 | Akzo Nobel Nv | Composição farmacêutica injetável, processo para preparação de composição farmacêutica, e, uso de cefquinoma em um veìculo com liberação prolongada |
DE60320034T2 (de) * | 2002-12-16 | 2009-05-14 | Intervet International Bv | Behandlung von mastitis mit einer kombination aus prednisolon und cephalosporin |
US6911441B2 (en) * | 2002-12-16 | 2005-06-28 | Akzo Nobel N.V. | Prolonged release pharmaceutical composition |
US7842791B2 (en) * | 2002-12-19 | 2010-11-30 | Nancy Jean Britten | Dispersible pharmaceutical compositions |
-
2007
- 2007-08-28 EP EP07802951A patent/EP2059231A1/de not_active Withdrawn
- 2007-08-28 WO PCT/EP2007/058933 patent/WO2008025773A1/en active Application Filing
- 2007-08-28 CA CA2661099A patent/CA2661099C/en not_active Expired - Fee Related
- 2007-08-28 AU AU2007291308A patent/AU2007291308A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008025773A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2661099A1 (en) | 2008-03-06 |
CA2661099C (en) | 2012-01-24 |
AU2007291308A1 (en) | 2008-03-06 |
WO2008025773A1 (en) | 2008-03-06 |
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Legal Events
Date | Code | Title | Description |
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Effective date: 20090330 |
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AX | Request for extension of the european patent |
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17Q | First examination report despatched |
Effective date: 20111206 |
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DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20120417 |