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EP2015728A2 - Liquid pharmaceutical formulation - Google Patents

Liquid pharmaceutical formulation

Info

Publication number
EP2015728A2
EP2015728A2 EP07724362A EP07724362A EP2015728A2 EP 2015728 A2 EP2015728 A2 EP 2015728A2 EP 07724362 A EP07724362 A EP 07724362A EP 07724362 A EP07724362 A EP 07724362A EP 2015728 A2 EP2015728 A2 EP 2015728A2
Authority
EP
European Patent Office
Prior art keywords
weight
formulation according
beta
pharmaceutical formulation
bisoprolol
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Withdrawn
Application number
EP07724362A
Other languages
German (de)
French (fr)
Inventor
Venkata-Rangarao Kanikanti
Gerald Beddies
Georg Schulte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Animal Health GmbH
Original Assignee
Bayer Animal Health GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer Animal Health GmbH filed Critical Bayer Animal Health GmbH
Publication of EP2015728A2 publication Critical patent/EP2015728A2/en
Withdrawn legal-status Critical Current

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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
    • A61K9/08—Solutions
    • 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
    • A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
    • A61K9/0095—Drinks; Beverages; Syrups; Compositions for reconstitution thereof, e.g. powders or tablets to be dispersed in a glass of water; Veterinary drenches
    • 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
    • A61K31/13—Amines
    • A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
    • 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
    • A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
    • A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
    • A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/12—Antihypertensives

Definitions

  • No. 5,484,776 describes a preparation process for controlled-release formulations of beta-blockers which are suitable for oral administration, the beta-blocker being reacted with a polysaccharide, preferably xanthan, in water, usually at elevated temperatures.
  • WO 99/16417 describes aerosol sprays and soft gelatin capsules for buccal administration. As described, the described formulations are suitable for a broad spectrum of active ingredients.
  • Beta-blockers are usually given for chronic indications, so that treatment can take months or years to complete. Further, the body weight of the treated animals (e.g., dogs or cats) will vary, so that variable dosability is also desirable. There is therefore a need for formulations for beta-blockers which combine high animal acceptance, good meterability and good long-term stability.
  • a liquid water-based drug formulation for oral administration comprising at most 1% by weight of a beta-blocker in dissolved form, the formulation having rapid bioavailability.
  • beta-blockers The drug group of beta-blockers is well known to those skilled in the art.
  • beta-blockers include: carvedilol, atenolol, acebutolol, propranolol, pindolol, metoprolol, betaxolol, esmolol, nebivolol and bisoprolol.
  • beta-blockers There are several subgroups of beta-blockers, such as B. beta-1 selective, beta-2 selective and unselective.
  • Beta-1-selective beta-blockers are particularly suitable for the purposes of this invention, for example: atenolol, acebutolol, betaxolol, esmolol, metoprolol, nebivolol and in particular bisoprolol,
  • the beta-blockers are used in the formulation according to the invention only in low concentrations, and usually in concentrations of at most 1 wt .-%, preferably at most 0.5 wt .-%. Typical concentration ranges for the beta-blockers are therefore from 0.001 to 1% by weight, preferably from 0.005 to 0.5% by weight, particularly preferably from 0.01 to 0.5% by weight.
  • the solutions have a viscosity of 2 to 20 cP, preferably 4 to 15 cP, particularly preferably 5 to 10 cP.
  • the pharmaceutical formulations of the invention may contain flavorings and / or flavorings.
  • examples are sugars (usual concentration: 2 to 10 wt .-%, preferably 3 to 8 wt .-%) and vanilla flavor (usual concentration: 0.05 to 0.3 wt .-%, preferably 0.1 to 0, 2% by weight).
  • sweeteners such as aspartame, cyclamate, saccharin, acesulfame, sucralose, thaumatin, neohesperidin, etc. used become.
  • the recommended concentrations of the different sweeteners vary; but they belong to the generally available expertise.
  • saccharin, especially the sodium salt is preferred. It is usually used in a concentration of 0.01-0.5 wt .-%, preferably 0.02-0.3 wt .-%.
  • preservatives are chosen to work against bacteria and fungi.
  • preservatives are organic acids, such as p-hydroxybenzoic acid esters, sorbic acid, benzoic acid, propionic acid, or their salts; Alcohols such. As benzyl alcohol, butanol or ethanol and quaternary ammonium compounds such as benzalkonium chloride.
  • An example of a particularly suitable preservative is sodium benzoate.
  • the preservative is usually in the inventive preparations in an amount of 0.01 to 1 wt .-%, preferably 0.02 to 0.6 wt .-%, particularly preferably from 0.02 to 0.4 wt .-% based included on the total weight of the preparation.
  • aqueous solution by the addition of suitable buffer substances to a defined pH, usually in the range 2 to 10, preferably 3 to 9.
  • weakly acidic pH values in the range from 3 to 7, in particular 3 to 5, are preferred.
  • the pharmaceutical formulations according to the invention may contain further customary pharmaceutical auxiliaries and additives. It is also conceivable to add to the formulations, in addition to the beta-blocker, further active ingredients which improve the effect or extend the spectrum of action to other indications.
  • the medicaments according to the invention have a rapid bioavailability. Accordingly, they are characterized in vitro by rapid release kinetics, i. at least 75% active substance is released within 30 minutes (measurement method see “Dissolution”, “Apparatus 2" in US Pharmacopeia 29 [2006]).
  • the active ingredient reaches a high proportion in the blood plasma and the desired site of action and not z.
  • the formulations according to the invention have good bio-digestibility, which is generally comparable to the bioavailability on intravenous administration.
  • dose linearity Especially at low dosages should also be a linear (so-called “dose linearity") and accurate correlation between administered drug amount and resulting plasma concentration can be achieved to allow targeted dosing.
  • formulations according to the invention are generally administered regularly over longer periods of time (eg daily), they should enable a repeated, precisely dosed application over a relatively long period of time.
  • the pharmaceutical formulations according to the invention can be prepared by mixing the individual components in the required amounts. It can be z. For example, it is possible to introduce a part of the solvent, to mix in the other components, if necessary to adjust the pH and then to fill up to the required final volume with further solvent. Preferably, temperatures are in the production of about + 4O 0 C, preferably above +30 0 C avoided.
  • the pharmaceutical preparations according to the invention are generally suitable for use in humans and animals. They are preferably used in animal husbandry and animal breeding in livestock, breeding, zoo, laboratory, experimental and hobby animals.
  • the pharmaceutical formulations according to the invention are usually used for the treatment of cardiovascular diseases in animals, in particular in the treatment of heart failure.
  • the livestock and breeding animals include mammals such as e.g. Cattle, horses, sheep, pigs, goats, camels, water buffalo, donkeys, rabbits, fallow deer, reindeer, fur animals such as e.g. Mink, chinchilla, raccoon and birds such as e.g. Chickens, geese, turkeys, ducks, pigeons and bird species for home and zoo keeping.
  • mammals such as e.g. Cattle, horses, sheep, pigs, goats, camels, water buffalo, donkeys, rabbits, fallow deer, reindeer, fur animals such as e.g. Mink, chinchilla, raccoon and birds such as e.g. Chickens, geese, turkeys, ducks, pigeons and bird species for home and zoo keeping.
  • Laboratory and experimental animals include mice, rats, guinea pigs, golden hamsters, dogs and cats.
  • the hobby animals include rabbits, hamsters, guinea pigs, mice, horses, reptiles, corresponding birds, dogs and cats.
  • the preparations according to the invention are preferably used in hobby animals such as horses, cats and dogs. They are particularly suitable for use in cats and especially dogs.
  • Examples of preferred farm animals are beef, sheep, pork and chicken.
  • formulations described herein are preferably for oral use.
  • the formulations can be prepared by dissolving all components except the bisoprolol compound in an amount of phosphate buffer that is slightly less than the target final volume. Then the bisoprolol compound is dissolved in the batch, the pH adjusted and filled with phosphate buffer to the final volume.
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.20% by weight
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.25 wt% vanilla flavor
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.15% by weight of vanilla flavor
  • vanilla flavor 0.15% by weight of vanilla flavor

Landscapes

  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Neurosurgery (AREA)
  • Neurology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

The invention relates to a liquid pharmaceutical formulation for beta blockers, which is particularly suitable for oral application in animals.

Description

Flüssige ArzneimittelformulierungLiquid drug formulation
Die Erfindung betrifft eine flüssige Arzneimittelformulierung für Betablocker, die sich insbesondere für die orale Anwendung bei Tieren eignet.The invention relates to a liquid drug formulation for beta-blockers, which is particularly suitable for oral use in animals.
Betablocker (auch als Betarezeptorenblocker bezeichnet) wie z.B. Bisoprolol, Carvedilol und Atenolol sind in der Humanmedizin lange bekannt zur Behandlung von Bluthochdruck und in neuerer Zeit der Herzinsuffizienz. Auch eine Nutzung der Betablocker in der Veterinärmedizin wird erwogen.Beta-blockers (also referred to as beta-receptor blockers) such as beta-blockers. Bisoprolol, carvedilol and atenolol have long been known in human medicine for the treatment of hypertension and, more recently, heart failure. A use of beta-blockers in veterinary medicine is also considered.
US 5 484 776 beschreibt ein Herstellungsverfahren für „controlled-release" Formulierungen von Betablockern, die sich zur oralen Anwendung eignen. Der Betablocker wird dabei mit einem PoIy- saccharid, vorzugsweise Xanthan, in Wasser üblicherweise bei erhöhten Temperaturen umgesetzt.No. 5,484,776 describes a preparation process for controlled-release formulations of beta-blockers which are suitable for oral administration, the beta-blocker being reacted with a polysaccharide, preferably xanthan, in water, usually at elevated temperatures.
WO 99/16417 beschreibt Aerosolsprays und Weichgelatinekapseln zur buccalen Anwendung. Laut Beschreibung eignen sich die beschriebenen Formulierungen für ein breites Spektrum von Wirkstoffen.WO 99/16417 describes aerosol sprays and soft gelatin capsules for buccal administration. As described, the described formulations are suitable for a broad spectrum of active ingredients.
WO 03/041696 offenbart Mittel, die angereichertes (S)-Bisoprolol enthalten, und deren An- wendung zur Behandlung von Herz-Kreislauf-Erkrankungen.WO 03/041696 discloses agents containing enriched (S) -bisoprolol and their use for the treatment of cardiovascular diseases.
Insbesondere im Fall der oralen Applikation sind in der Tiermedizin die Anforderungen an Arzneimittelformulierungen besonders hoch, da sie eine ausreichende Palatabilität aufweisen müssen, so dass das Tier die gesamte Dosis aufnimmt. Betablocker werden in der Regel bei chronischen Indikationen gegeben, so dass sich die Behandlung über Monate oder Jahre hinziehen kann. Weiterhin variiert das Körpergewicht der behandelten Tiere (z.B. Hunde oder Katzen), so dass eine variable Dosierbarkeit ebenfalls wünschenswert ist. Es besteht daher ein Bedarf an Formulierungen für Betablocker, die hohe Akzeptanz beim Tier, gute Dosierbarkeit und gute Langzeitstabilität in sich vereinen.Especially in the case of oral administration, the requirements for drug formulations are particularly high in veterinary medicine, since they must have sufficient palatability, so that the animal absorbs the entire dose. Beta-blockers are usually given for chronic indications, so that treatment can take months or years to complete. Further, the body weight of the treated animals (e.g., dogs or cats) will vary, so that variable dosability is also desirable. There is therefore a need for formulations for beta-blockers which combine high animal acceptance, good meterability and good long-term stability.
Die Aufgabe wird gelöst durch:The task is solved by:
Flüssige Arzneimittelformulierung auf Wasserbasis zur oralen Verabreichung enthaltend höchstens 1 Gew.-% eines Betablockers in gelöster Form, wobei die Formulierung eine schnelle Bioverfügbarkeit aufweist.A liquid water-based drug formulation for oral administration comprising at most 1% by weight of a beta-blocker in dissolved form, the formulation having rapid bioavailability.
Die Wirkstoffgruppe der Betablocker ist dem Fachmann gut bekannt. Als Beispiele für Betablocker seien genannt: Carvedilol, Atenolol, Acebutolol, Propanolol, Pindolol, Metoprolol, Betaxolol, Esmolol, Nebivolol und Bisoprolol. Es gibt verschiedene Untergruppen von Betablockern, wie z. B. beta-1 -selektive, beta-2-selektive und unselektive. Im Rahmen dieser Erfindung eignen sich insbesondere beta-1 -selektive Betablocker, wie zum Beispiel: Atenolol, Acebutolol, Betaxolol, Esmolol, Metoprolol, Nebivolol und insbesondere Bisoprolol,The drug group of beta-blockers is well known to those skilled in the art. Examples of beta-blockers include: carvedilol, atenolol, acebutolol, propranolol, pindolol, metoprolol, betaxolol, esmolol, nebivolol and bisoprolol. There are several subgroups of beta-blockers, such as B. beta-1 selective, beta-2 selective and unselective. Beta-1-selective beta-blockers are particularly suitable for the purposes of this invention, for example: atenolol, acebutolol, betaxolol, esmolol, metoprolol, nebivolol and in particular bisoprolol,
Aufgrund ihrer hohen Wirksamkeit werden die Betablocker in der erfindungsgemäßen Formulierung nur in geringen Konzentrationen eingesetzt und zwar üblicherweise in Konzentrationen von höchstens 1 Gew.-%, bevorzugt höchstens 0,5 Gew.-%. Übliche Konzentrationsbereiche für die Betablocker sind daher 0,001 bis 1 Gew.-%, bevorzugt 0,005 bis 0,5 Gew.-%, besonders bevorzugt 0,01 bis 0,5 Gew.-%Because of their high effectiveness, the beta-blockers are used in the formulation according to the invention only in low concentrations, and usually in concentrations of at most 1 wt .-%, preferably at most 0.5 wt .-%. Typical concentration ranges for the beta-blockers are therefore from 0.001 to 1% by weight, preferably from 0.005 to 0.5% by weight, particularly preferably from 0.01 to 0.5% by weight.
„Auf Wasserbasis" bedeutet, dass die erfindungsgemäßen Formulierungen als ein wesentliches Lösungsmittel Wasser enthalten, und zwar üblicherweise mindestens 40 Gew.-%, bevorzugt mindestens 50 Gew.-%, besonders bevorzugt mindestens 70 Gew.-%, ganz besonders bevorzugt mindestens 80 Gew.-%."Water-based" means that the formulations according to the invention contain water as an essential solvent, usually at least 40% by weight, preferably at least 50% by weight, particularly preferably at least 70% by weight, very particularly preferably at least 80% by weight .-%.
Abgesehen von Wasser kann die erfindungsgemäße Formulierung gegebenenfalls weitere ge- eignete wassermischbare Lösungsmittel enthalten.Apart from water, the formulation according to the invention may optionally contain further suitable water-miscible solvents.
Für die Applikation der erfindungsgemäßen Arzneimittelformulierung ist es in der Regel wünschenswert, dass sie leicht viskos ist. Aus diesem Grund enthalten die erfϊndungsgemäßen Arzneimittelformulierungen vorzugsweise einen wasserlöslichen/wassermischbaren Verdicker, z. B. Glycerin oder vorzugsweise wasserlösliche Cellulosederivate wie z.B. Hydroxypropyl- cellulose oder Hydroxypropylmethylcellulose. Die erforderlichen Konzentrationen an Verdicker zur Herstellung einer Formulierung mit geeigneter Viskosität sind im Prinzip bekannt. So sind Gelbildner, wie z. B. die wasserlöslichen Cellulosederivate üblicherweise in Konzentrationen von 1 bis 10 Gew.-%, bevorzugt 1 bis 5 Gew.-% enthalten. Falls der Verdicker ein wassermischbares Lösungsmittel, wie z. B. Glycerin, ist, sind auch höhere Konzentrationen von 1 bis 70 Gew.-%, bevorzugt 1 bis 60 Gew.-% denkbar.For the application of the pharmaceutical formulation according to the invention it is generally desirable that it is slightly viscous. For this reason, the pharmaceutical formulations according to the invention preferably contain a water-soluble / water-miscible thickener, eg. Glycerol or, preferably, water-soluble cellulose derivatives such as e.g. Hydroxypropyl cellulose or hydroxypropylmethylcellulose. The required concentrations of thickener for preparing a formulation of suitable viscosity are known in principle. So are gel formers, such as. As the water-soluble cellulose derivatives usually in concentrations of 1 to 10 wt .-%, preferably 1 to 5 wt .-%. If the thickener is a water-miscible solvent, such. As glycerol, is also higher concentrations of 1 to 70 wt .-%, preferably 1 to 60 wt .-% conceivable.
Vorzugsweise haben die Lösungen eine Viskosität von 2 bis 20 cP, bevorzugt 4 bis 15 cP, besonders bevorzugt 5 bis 10 cP.Preferably, the solutions have a viscosity of 2 to 20 cP, preferably 4 to 15 cP, particularly preferably 5 to 10 cP.
Zur Verbesserung der Palatabilität können die erfindungsgemäßen Arzneimittelformulierungen Geschmacks- und/oder Aromastoffe enthalten. Als Beispiele seien Zucker (übliche Konzentration: 2 bis 10 Gew.-%, bevorzugt 3 bis 8 Gew.-%) und Vanillearoma (übliche Konzentration: 0,05 bis 0,3 Gew.-%, bevorzugt 0,1 bis 0,2 Gew.-%) genannt. Es können auch Süßstoffe, wie z. B. Aspartam, Cyclamat, Saccharin, Acesulfam, Sucralose, Thaumatin, Neohesperidin etc. verwendet werden. Die empfehlenswerten Konzentrationen der verschiedenen Süssstoffe variieren; sie gehören aber zum allgemein verfügbaren Fachwissen. Von den Süßstoffen ist Saccharin, insbesondere das Natriumsalz bevorzugt. Es wird üblicherweise in einer Konzentration von 0,01- 0,5 Gew.-%, bevorzugt 0,02-0,3 Gew.-% eingesetzt.To improve palatability, the pharmaceutical formulations of the invention may contain flavorings and / or flavorings. Examples are sugars (usual concentration: 2 to 10 wt .-%, preferably 3 to 8 wt .-%) and vanilla flavor (usual concentration: 0.05 to 0.3 wt .-%, preferably 0.1 to 0, 2% by weight). It can also sweeteners such. As aspartame, cyclamate, saccharin, acesulfame, sucralose, thaumatin, neohesperidin, etc. used become. The recommended concentrations of the different sweeteners vary; but they belong to the generally available expertise. Of the sweeteners, saccharin, especially the sodium salt, is preferred. It is usually used in a concentration of 0.01-0.5 wt .-%, preferably 0.02-0.3 wt .-%.
Um die Langzeitstabilität zu gewährleisten, ist der Einsatz von Konservierungsstoffen empfehlenswert. Vorzugsweise werden die Konservierungsstoffe so gewählt, dass sie gegen Bakterien und Pilze wirken. Beispiele für Konservierungsmittel sind organische Säuren, wie zum Beispiel p- Hydroxybenzoesäureester, Sorbinsäure, Benzoesäure, Propionsäure, oder deren Salze; Alkohole wie z. B. Benzylalkohol, Butanol oder Ethanol und Quartäre Ammoniumverbindungen wie zum Beispiel Benzalkoniumchlorid. Ein Beispiel für einen besonders geeigneten Konservierungsstoff ist Natriumbenzoat. Das Konservierungsmittel ist in den erfindungsgemäßen Zubereitungen üblicherweise in einer Menge von 0,01 bis 1 Gew.-%, bevorzugt 0,02 bis 0,6 Gew.-%, besonders bevorzugt von 0,02 bis 0,4 Gew.-% bezogen auf das Gesamtgewicht der Zubereitung enthalten.To ensure the long-term stability, the use of preservatives is recommended. Preferably, the preservatives are chosen to work against bacteria and fungi. Examples of preservatives are organic acids, such as p-hydroxybenzoic acid esters, sorbic acid, benzoic acid, propionic acid, or their salts; Alcohols such. As benzyl alcohol, butanol or ethanol and quaternary ammonium compounds such as benzalkonium chloride. An example of a particularly suitable preservative is sodium benzoate. The preservative is usually in the inventive preparations in an amount of 0.01 to 1 wt .-%, preferably 0.02 to 0.6 wt .-%, particularly preferably from 0.02 to 0.4 wt .-% based included on the total weight of the preparation.
Weiterhin kann es sinnvoll sein, die wässrige Lösung durch Zusatz von geeigneten Puffer- Substanzen auf einen definierten pH-Wert einzustellen, üblicherweise im Bereich 2 bis 10, bevorzugt 3 bis 9.Furthermore, it may be useful to adjust the aqueous solution by the addition of suitable buffer substances to a defined pH, usually in the range 2 to 10, preferably 3 to 9.
Insbesondere bei Verwendung von Natriumbenzoat als Konservierungsmittel sind schwach saure pH-Werte im Bereich von 3 bis 7, insbesondere 3 bis 5 bevorzugt.Particularly when using sodium benzoate as a preservative, weakly acidic pH values in the range from 3 to 7, in particular 3 to 5, are preferred.
Darüber hinaus können die erfϊndungsgemäßen Arzneimittelformulierungen weitere übliche pharmazeutische Hilfs- und Zusatzstoffe enthalten. Auch ist es denkbar, den Formulierungen zusätzlich zu dem Betablocker weitere Wirkstoffe zuzusetzen, welche die Wirkung verbessern oder das Wirkungsspektrum auf andere Indikationen erweitern.In addition, the pharmaceutical formulations according to the invention may contain further customary pharmaceutical auxiliaries and additives. It is also conceivable to add to the formulations, in addition to the beta-blocker, further active ingredients which improve the effect or extend the spectrum of action to other indications.
Die erfindungsgemäßen Arzneimittel weisen eine schnelle Bioverfügbarkeit auf. Entsprechend sind sie in vitro durch eine schnelle Freisetzungskinetik charakterisiert, d.h. es werden mindestens 75% Wirkstoff innerhalb von 30 Minuten freigesetzt (Messmethode siehe „Dissolution", „Apparatus 2" in US-Pharmacopeia 29 [2006]).The medicaments according to the invention have a rapid bioavailability. Accordingly, they are characterized in vitro by rapid release kinetics, i. at least 75% active substance is released within 30 minutes (measurement method see "Dissolution", "Apparatus 2" in US Pharmacopeia 29 [2006]).
In vivo lässt sich die schnelle Bioverfügbarkeit durch das Erreichen der maximalen Plasmakonzentration (Cm»*) des Wirkstoffs beschreiben. Diese sollte innerhalb von 2 Stunden, bevorzugt 1,5 Stunden erreicht sein.In vivo rapid bioavailability can be described by reaching the maximum plasma concentration (C m »*) of the drug. This should be reached within 2 hours, preferably 1.5 hours.
Abgesehen von einer schnellen Bioverfügbarkeit wird auch eine hohe Bioverfügbarkeit angestrebt; das bedeutet, dass der Wirkstoff zu einem hohen Anteil in das Blutplasma und an die gewünschte Wirkstelle gelangt und nicht z. B. mangels Resorption direkt ausgeschieden oder durch Metabolisierung unwirksam wird. Die erfindungsgemäßen Formulierungen weisen auch bei oraler Verabreichung eine gute Bioverftigbarkeit auf, die in der Regel vergleichbar ist mit der Bioverfügbarkeit bei intravenöser Verabreichung.Apart from rapid bioavailability, a high bioavailability is also sought; this means that the active ingredient reaches a high proportion in the blood plasma and the desired site of action and not z. B. excreted directly due to lack of absorption or by Metabolism becomes ineffective. Even when administered orally, the formulations according to the invention have good bio-digestibility, which is generally comparable to the bioavailability on intravenous administration.
Gerade bei geringen Dosierungen sollte auch eine lineare (sogenannte „Dosislinearität") und genaue Korrelation zwischen verabreichter Wirkstoffmenge und resultierender Plasmakonzentration erreicht werden, um eine zielgerechte Dosierung zu ermöglichen.Especially at low dosages should also be a linear (so-called "dose linearity") and accurate correlation between administered drug amount and resulting plasma concentration can be achieved to allow targeted dosing.
Da die erfindungsgemäßen Formulierungen in der Regel über längere Zeiträume regelmäßig (z. B. täglich) verabreicht werden, sollten sie eine wiederholte, genau dosierte Anwendung auch über einen längeren Zeitraum ermöglichen.Since the formulations according to the invention are generally administered regularly over longer periods of time (eg daily), they should enable a repeated, precisely dosed application over a relatively long period of time.
Die erfindungsgemäßen Arzneimittelformulierungen können durch Mischen der einzelnen Komponenten in den erforderlichen Mengen hergestellt werden. Dabei kann z. B. so vorgegangen werden, dass man einen Teil des Lösungsmittels vorlegt, die anderen Komponenten untermischt, ggf. den pH-Wert einstellt und dann mit weiterem Lösungsmittel auf das erforderliche Endvolumen auffüllt. Vorzugsweise werden bei der Herstellung Temperaturen über +4O0C, bevorzugt über +300C vermieden.The pharmaceutical formulations according to the invention can be prepared by mixing the individual components in the required amounts. It can be z. For example, it is possible to introduce a part of the solvent, to mix in the other components, if necessary to adjust the pH and then to fill up to the required final volume with further solvent. Preferably, temperatures are in the production of about + 4O 0 C, preferably above +30 0 C avoided.
Die erfindungsgemäßen Arzneimittelzubereitungen eignen sich generell für die Anwendung bei Mensch und Tier. Bevorzugt werden sie in der Tierhaltung und Tierzucht bei Nutz-, Zucht-, Zoo-, Labor-, Versuchs- und Hobbytieren eingesetzt.The pharmaceutical preparations according to the invention are generally suitable for use in humans and animals. They are preferably used in animal husbandry and animal breeding in livestock, breeding, zoo, laboratory, experimental and hobby animals.
Die erfindungsgemäßen Arzneimittel formulierungen werden üblicherweise eingesetzt zur Be- handlung von Herz-Kreislauferkrankungen bei Tieren und zwar insbesondere bei der Behandlung der Herzinsuffizienz.The pharmaceutical formulations according to the invention are usually used for the treatment of cardiovascular diseases in animals, in particular in the treatment of heart failure.
Zu den Nutz- und Zuchttieren gehören Säugetiere wie z.B. Rinder, Pferde, Schafe, Schweine, Ziegen, Kamele, Wasserbüffel, Esel, Kaninchen, Damwild, Rentiere, Pelztiere wie z.B. Nerze, Chinchilla, Waschbär sowie Vögel wie z.B. Hühner, Gänse, Puten, Enten, Tauben und Vogelarten für Heim- und Zoohaltung.The livestock and breeding animals include mammals such as e.g. Cattle, horses, sheep, pigs, goats, camels, water buffalo, donkeys, rabbits, fallow deer, reindeer, fur animals such as e.g. Mink, chinchilla, raccoon and birds such as e.g. Chickens, geese, turkeys, ducks, pigeons and bird species for home and zoo keeping.
Zu Labor- und Versuchstieren gehören Mäuse, Ratten, Meerschweinchen, Goldhamster, Hunde und Katzen.Laboratory and experimental animals include mice, rats, guinea pigs, golden hamsters, dogs and cats.
Zu den Hobbytieren gehören Kaninchen, Hamster, Meerschweinchen, Mäuse, Pferde, Reptilien, entsprechende Vogelarten, Hunde und Katzen. Bevorzugt werden die erfindungsgemäßen Zubereitungen bei Hobbytieren wie Pferden, Katzen und Hunden eingesetzt. Besonders eignen sie sich für die Anwendung bei Katzen und insbesondere Hunden.The hobby animals include rabbits, hamsters, guinea pigs, mice, horses, reptiles, corresponding birds, dogs and cats. The preparations according to the invention are preferably used in hobby animals such as horses, cats and dogs. They are particularly suitable for use in cats and especially dogs.
Beispiele für bevorzugte Nutztiere sind Rind, Schaf, Schwein und Huhn.Examples of preferred farm animals are beef, sheep, pork and chicken.
Die hier beschriebenen Formulierungen sind vorzugsweise für die orale Anwendung vorgesehen. The formulations described herein are preferably for oral use.
BeispieleExamples
Die Formulierungen können hergestellt werden, indem man alle Komponenten ausgenommen die Bisoprolol-Verbindung in einer Menge Phosphatpuffer löst, die etwas geringer ist als das angestrebte Endvolumen. Dann wird die Bisoprolol-Verbindung in dem Ansatz gelöst, der pH- Wert eingestellt und mit Phosphatpuffer auf das Endvolumen aufgefüllt.The formulations can be prepared by dissolving all components except the bisoprolol compound in an amount of phosphate buffer that is slightly less than the target final volume. Then the bisoprolol compound is dissolved in the batch, the pH adjusted and filled with phosphate buffer to the final volume.
Beispiel 1example 1
0,008 Gew.-% Bisoprolol-hemifumarat,0.008% by weight bisoprolol hemifumarate,
0,20 Gew.-% Natriumbenzoat,0.20% by weight of sodium benzoate,
0,20 Gew.-% Natriumpropionat,0.20% by weight of sodium propionate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
5,00 Gew.-% Zucker,5.00% by weight of sugar,
4,00 Gew.-% HPM-Cellulose 5 cP4.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 2Example 2
0,05 Gew. -% Bisoprolol-hemifumarat,0.05% by weight of bisoprolol hemifumarate,
0,2 Gew.-% Natriumbenzoat,0.2% by weight of sodium benzoate,
0,20 Gew.-% Vanillearoma,0.20% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 3Example 3
0,40 Gew.-% Bisoprolol-hemifumarat,0.40% by weight bisoprolol hemifumarate,
0,20 Gew.-% Natriumbenzoat,0.20% by weight of sodium benzoate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP ad 100 Gew.-% Phosphatpuffer pH 4,02.00% by weight HPM cellulose 5 cP ad 100% by weight of phosphate buffer pH 4.0
Beispiel 4Example 4
0,02 Gew.-% Bisoprolol-hemifumarat,0.02% by weight bisoprolol hemifumarate,
0,20 Gew.-% Natriumbenzoat,0.20% by weight of sodium benzoate,
0,20 Gew.-% Natriumpropionat,0.20% by weight of sodium propionate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 5Example 5
0,005 Gew.-% Bisoprolol-hemifumarat,0.005% by weight of bisoprolol hemifumarate,
0,20 Gew.-% Natriumbenzoat,0.20% by weight of sodium benzoate,
0,20 Gew.-% Natriumpropionat,0.20% by weight of sodium propionate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
5,00 Gew.-% HPM-Cellulose 5 cP5.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 6Example 6
0,02 Gew.-% Bisoprolol-hemifumarat,0.02% by weight bisoprolol hemifumarate,
0,14 Gew.-% 4-Hydroxybenzoesäuremethylester (Methylparaben)0.14% by weight of methyl 4-hydroxybenzoate (methylparaben)
0,02 Gew.-% 4-Hydroxybenzoesäurepropylester (Propylparaben)0.02% by weight of propyl 4-hydroxybenzoate (propylparaben)
0,02 Gew.-% Butylhydroxyanisol0.02% by weight of butylhydroxyanisole
50 Gew.-% Glycerin50% by weight of glycerol
0,25 Gew.-% Vanillearoma0.25 wt% vanilla flavor
ad 100 Gew.-% Phosphatpuffer pH 6,5 Beispiel 7ad 100% by weight of phosphate buffer pH 6.5 Example 7
0,02 Gew.-% Bisoprolol-hemifumarat,0.02% by weight bisoprolol hemifumarate,
0,30 Gew.-% Natriumbenzoat,0.30% by weight of sodium benzoate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 8Example 8
0,02 Gew.-% Metoprolol-tartrat,0.02% by weight of metoprolol tartrate,
0,30 Gew.-% Natriumbenzoat,0.30% by weight of sodium benzoate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 9Example 9
0,02 Gew.-% Bisoprolol-hemifumarat,0.02% by weight bisoprolol hemifumarate,
0,20 Gew.-% Natriumbenzoat,0.20% by weight of sodium benzoate,
0,20 Gew.-% Natriumpropionat,0.20% by weight of sodium propionate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
5,00 Gew.-% Zucker,5.00% by weight of sugar,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 10Example 10
0,005 Gew.-% Bisoprolol-hemifumarat,0.005% by weight of bisoprolol hemifumarate,
0,05 Gew.-% Natriumbenzoat, 0,15 Gew.-% Vanillearoma,0.05% by weight of sodium benzoate, 0.15% by weight of vanilla flavor,
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 11Example 11
0,01 Gew.-% Bisoprolol-hemifumarat,0.01% by weight bisoprolol hemifumarate,
0,075 Gew.-% Natriumbenzoat,0.075% by weight of sodium benzoate,
0,15 Gew.-% Saccharin-Natriumsalz0.15% by weight saccharin sodium salt
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 12Example 12
0,08 Gew.-% Bisoprolol-hemifumarat,0.08% by weight bisoprolol hemifumarate,
0,075 Gew.-% Natriumbenzoat,0.075% by weight of sodium benzoate,
0,15 Gew.-% Saccharin-Natriumsalz0.15% by weight saccharin sodium salt
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 13Example 13
0,33 Gew.-% Bisoprolol-hemifumarat,0.33% by weight bisoprolol hemifumarate,
0,075 Gew.-% Natriumbenzoat,0.075% by weight of sodium benzoate,
0,15 Gew.-% Saccharin-Natriumsalz0.15% by weight saccharin sodium salt
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Beispiel 14Example 14
0,05 Gew.-% Bisoprolol-hemifumarat, 0,3 Gew.-% Natriumbenzoat,0.05% by weight bisoprolol hemifumarate, 0.3% by weight of sodium benzoate,
0,15 Gew.-% Vanillearoma,0.15% by weight of vanilla flavor,
0,05 Gew.-% Saccharin-Natriumsalz0.05% by weight saccharin sodium salt
2,00 Gew.-% HPM-Cellulose 5 cP2.00% by weight HPM cellulose 5 cP
ad 100 Gew.-% Phosphatpuffer pH 4,0ad 100% by weight of phosphate buffer pH 4.0
Biologische BeispieleBiological examples
A. Pharmakokinetische UntersuchungenA. Pharmacokinetic studies
Es wurde eine Studie mit insgesamt 18 adulten Hunden, 6 pro Gruppe, durchgeführt. Die Testsub- stanz wurde den Hunden einmalig oral in Dosierungen von 0,01 mg/kg; 0,05 mg/kg und 0,1 mg/kg Körpergewicht verabreicht. Nach Verabreichung des Wirkstoffs wurden Blutproben von ca. 4 mL genommen, und zwar zu den Zeitpunkten: 15, 30, 45, 60, 90 Minuten, 2, 4, 6, 8, 12 und 24 Stunden nach Verabreichung des Wirkstoffs.A study was conducted with a total of 18 adult dogs, 6 per group. The test substance was orally administered to the dogs orally at doses of 0.01 mg / kg; 0.05 mg / kg and 0.1 mg / kg body weight. After administration of the drug, blood samples of approximately 4 mL were taken at times: 15, 30, 45, 60, 90 minutes, 2, 4, 6, 8, 12 and 24 hours after drug administration.
Die Ergebnisse mit der Formulierung des Beispiels 6 sind graphisch in Fig. 1 dargestellt. Aufge- tragen ist die mittlere Serumkonzentration an Bisoprolol (in μg/L) gegen die Zeit (in Stunden). Die drei Kurven geben den Serumkonzentrationsverlauf für verschiedene Dosierungen wieder, Dosierung Gruppe 1 : 0.01 mg/kg Bisoprolol; Gruppe 2: 0,05 mg/kg Bisoprolol; Gruppe 3: 0,1 mg/kg Bisoprolol.The results with the formulation of Example 6 are shown graphically in FIG. The mean serum concentration of bisoprolol (in μg / L) versus time (in hours) is shown. The three curves represent the serum concentration course for different doses, dosage group 1: 0.01 mg / kg bisoprolol; Group 2: 0.05 mg / kg bisoprolol; Group 3: 0.1 mg / kg bisoprolol.
B. Vergleich der Bioverfügbarkeit orale versus intravenöse VerabreichungB. Comparison of bioavailability oral versus intravenous administration
In einer weiteren Studie mit 24 Hunden wurden jeweils 12 Hunden 0,2 mg/kg Körpergewicht Bisoprolol-Hemifumarat oral (Formulierung gemäß Beispiel 14) bzw. intravenös verabreicht. Nach der Verabreichung wurde zu verschiedenen Zeitpunkten der Bisoprolol-Plasmaspiegel bestimmt. Die Ergebnisse sind in Fig. 2 dargestellt, dort sind die gemittelten Serumkonzentrationen in μg/L gegen die Zeit in Stunden aufgetragen. Es zeigt sich, dass bei oraler Gabe eine ungewöhnlich hohe Bioverfügbarkeit erreicht wird, die fast so hoch ist, wie bei direkter intravenöser Applikation. In another study with 24 dogs, 12 dogs each were administered 0.2 mg / kg body weight of bisoprolol hemifumarate orally (formulation according to Example 14) or intravenously. After administration, bisoprolol plasma levels were determined at various times. The results are shown in FIG. 2, where the averaged serum concentrations in μg / L are plotted against time in hours. It turns out that when given orally, an unusually high bioavailability is achieved, which is almost as high as with direct intravenous administration.

Claims

Patentansprüche claims
I . Flüssige Arzneimittel formulierung auf Wasserbasis zur oralen Verabreichung enthaltend höchstens 1 Gew.-% eines Betablockers in gelöster Form, wobei die Formulierung eine schnelle Bioverfugbarkeit aufweist.I. A water-based liquid drug formulation for oral administration comprising at most 1% by weight of a beta-blocker in dissolved form, which formulation has rapid bioavailability.
2. Arzneimittelformulierung gemäß Anspruch 1 enthaltend höchstens 0,5 Gew.-% eines Betablockers.2. A pharmaceutical formulation according to claim 1 containing at most 0.5 wt .-% of a beta-blocker.
3. Arzneimittelformulierung gemäß einem der vorstehenden Ansprüche enthaltend Bisoprolol als wasserlöslichen Betablocker.3. A pharmaceutical formulation according to any one of the preceding claims comprising bisoprolol as a water-soluble beta-blocker.
4. Arzneimittelformulierung gemäß einem der vorstehenden Ansprüche enthaltend zusätzlich einen wasserlöslichen Verdicker.4. Medicament formulation according to one of the preceding claims additionally containing a water-soluble thickener.
5. Arzneimittelformulierung gemäß einem der vorstehenden Ansprüche enthaltend zusätzlich einen oder mehrere Geschmacks- und/oder Aromastoffe.5. A pharmaceutical formulation according to any one of the preceding claims additionally containing one or more flavoring and / or flavoring agents.
6. Arzneimittelformulierung gemäß einem der Ansprüche 4 oder 5, enthaltend als Verdicker einen Gelbildner.6. Medicament formulation according to one of claims 4 or 5, comprising as thickener a gelling agent.
7. Arzneimittelformulierung gemäß Anspruch 6, enhaltend 1 bis 10 Gew.-% an Gelbildner.7. A pharmaceutical formulation according to claim 6, containing 1 to 10 wt .-% of gelling agent.
8. Arzneimittelformulierung gemäß einem der Ansprüche 6 oder 7, enthaltend als Gelbildner ein wasserlösliches Cellulosederivat.8. Medicament formulation according to one of claims 6 or 7, comprising as gelling agent a water-soluble cellulose derivative.
9. Arzneimittelformulierung gemäß Anspruch 8, enthaltend als Gelbildner Hydroxypropylcellulose.9. A pharmaceutical formulation according to claim 8, containing as gelling agent hydroxypropylcellulose.
10. Arzneimittelformulierung gemäß Anspruch 8, enthaltend als Gelbildner Hydroxypropylmethylcellulose.10. A pharmaceutical formulation according to claim 8, containing as gelling agent hydroxypropylmethylcellulose.
I 1. Verwendung der Arzneimittelformulierung gemäß einem der vorstehenden Ansprüche zur Herstellung von Arzneimitteln zur Behandlung von Herz-Kreislauf-Erkrankungen bei Tieren. I 1. Use of the pharmaceutical formulation according to any one of the preceding claims for the preparation of medicaments for the treatment of cardiovascular diseases in animals.
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