US20080254036A1 - Combination anticoagulant therapy with a compound that acts as a factor xa inhibitor - Google Patents

Combination anticoagulant therapy with a compound that acts as a factor xa inhibitor Download PDF

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US20080254036A1
US20080254036A1 US12/101,644 US10164408A US2008254036A1 US 20080254036 A1 US20080254036 A1 US 20080254036A1 US 10164408 A US10164408 A US 10164408A US 2008254036 A1 US2008254036 A1 US 2008254036A1
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Uma Sinha
Stanley J. Hollenbach
Patrick Andre
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Millennium Pharmaceuticals Inc
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Millennium Pharmaceuticals Inc
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Assigned to MILLENNIUM PHARMACEUTICALS, INC. reassignment MILLENNIUM PHARMACEUTICALS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANDRE, PATRICK, HOLLENBACH, STANLEY J., SINHA, UMA
Publication of US20080254036A1 publication Critical patent/US20080254036A1/en
Priority to US13/213,912 priority patent/US8455440B2/en
Priority to US13/889,982 priority patent/US20130315897A1/en
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    • 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
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4402—Non condensed pyridines; Hydrogenated derivatives thereof only substituted in position 2, e.g. pheniramine, bisacodyl
    • 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
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • 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
    • A61K31/4353—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 ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/4365—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 ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system having sulfur as a ring hetero atom, e.g. ticlopidine
    • 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
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445—Non condensed piperidines, e.g. piperocaine
    • A61K31/4465—Non condensed piperidines, e.g. piperocaine only substituted in position 4
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00—Medicinal preparations containing peptides
    • A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
    • A61K38/12—Cyclic peptides, e.g. bacitracins; Polymyxins; Gramicidins S, C; Tyrocidins A, B or C
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K39/395—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
    • A61K39/39533—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals
    • A61K39/3955—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals against proteinaceous materials, e.g. enzymes, hormones, lymphokines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
    • 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
    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis

Definitions

  • the present invention relates generally to novel pharmaceutical compositions and methods for treating thrombotic diseases using a combination of a factor Xa inhibitor and other agents.
  • This invention is particularly concerned with blood coagulation and ways in which coagulation assists in maintaining the integrity of mammalian circulation after injury, inflammation, disease, congenital defect, dysfunction or other disruption.
  • Clot formation involves the conversion of fibrinogen to fibrin which polymerizes into a network to restore hemostasis after injury. A similar process results in occluded blood vessels in thrombotic diseases.
  • the conversion of fibrinogen to fibrin is catalyzed by thrombin, the end product of a series of reactions in the blood coagulation cascade.
  • Factor Xa a serine protease, is the sole enzyme responsible for sustained thrombin formation in the vasculature. Thus, inhibition of factor Xa is considered to be an efficient anticoagulant strategy.
  • combination therapies that combine a fixed dose of anticoagulant agent with an antiplatelet agent that have enhanced efficacy. Further, there is a need for combination therapies for patients having thrombotic disease(s) with other co-existing conditions, such as high blood pressure or inflammation.
  • This invention provides methods and pharmaceutical compositions of combined therapies comprising a factor Xa inhibitor, having the following structure:
  • This compound has been shown to have the ability to treat conditions associated with undesired thrombosis.
  • a patient undergoing treatment for undesired thrombosis are often in need of receiving additional cardiac and/or vascular therapy.
  • Compound A has been shown to have predictable levels of anticoagulation as measured by pharmacodynamic assays. This is more thoroughly described in Examples 2 and 3. Thus, it is contemplated that Compound A can surprisingly and unexpectedly be used in a fixed, non-dose-titrated manner in combination with other therapeutic agents for the treatment of thrombotic disease. It is further contemplated that Compound A when provided in combination with certain other therapeutic agents shows a synergistic effect illustrated by superior efficacy or safety profile.
  • the present invention provides novel methods for treating a condition in a mammal characterized by undesired thrombosis, comprising administering to said mammal a therapeutically effective amount of the Compound A, [2-( ⁇ 4-[(dimethylamino)iminomethyl]phenyl ⁇ carbonylamino)-5-methoxyphenyl]-N-(5-chloro(2-pyridyl))carboxamide, or a pharmaceutically acceptable salt thereof, and a therapeutically effective amount of another therapeutic agent.
  • the other therapeutically effective agent is selected from an antiplatelet agent, an anticoagulant agent, an inflammatory agent, a blood pressure lowering agent and combinations thereof.
  • Compound A and the other therapeutic agent can be combined with another agent selected from a thrombin inhibitor, a thrombolytic agent, an antiarrhythmic agent, a cholesterol or triglyceride agent and combinations thereof.
  • compositions comprising a compound of the following formula:
  • FIG. 1 and FIG. 2 show the correlation of Compound A plasma concentration and inhibition of thrombin generation in human studies.
  • FIG. 3 shows the correlation of Compound A plasma concentration and anti-factor Xa units in a human study.
  • This invention relates to methods and compositions for treating a condition in a mammal characterized by undesired thrombosis using a combination of Compound A with another therapeutic agent.
  • compositions and methods include the recited elements, but do not exclude others.
  • Consisting essentially of when used to define compositions and methods, shall mean excluding other elements of any essential significance to the combination for the intended use. Thus, a composition consisting essentially of the elements as defined herein would not exclude trace contaminants from the isolation and purification method and pharmaceutically acceptable carriers, such as phosphate buffered saline, preservatives, and the like.
  • Consisting of shall mean excluding more than trace elements of other ingredients and substantial method steps for administering the compositions of this invention. Embodiments defined by each of these transition terms are within the scope of this invention.
  • the invention provides methods of treating a condition in a mammal characterized by undesired thrombosis using a combination therapy having Compound A and other therapeutic agents.
  • Treat” or “treating” or “treatment” of a disease or condition in a patient refers to 1) preventing the disease or condition from occurring in a mammal, in particular, a mammal who is predisposed or does not yet display symptoms of the disease or condition; 2) inhibiting the disease or condition or arresting its development; or 3) ameliorating or causing regression of the disease or condition.
  • mammal includes organisms which express factor Xa. Examples of mammals include mice, rats, cows, sheep, pigs, goats, horses, bears, monkeys, dogs, cats and, preferably, humans. Transgenic organisms which express factor Xa are also included in this definition.
  • a condition characterized by undesired thrombosis refers to any of, but is not limited to the following: (a) thrombotically mediated acute coronary syndrome including myocardial infarction, unstable angina, refractory angina, occlusive coronary thrombus occurring post-thrombolytic therapy or post-coronary angioplasty, (b) thrombotically mediated cerebrovascular syndrome including embolic stroke, thrombotic stroke or transient ischemic attacks, (c) thrombotic syndrome occurring in the venous system including deep venous thrombosis or pulmonary embolus occurring either spontaneously or in the setting of malignancy, surgery or trauma, (d) coagulopathy including disseminated intravascular coagulation (including the setting of septic shock or other infection, surgery, pregnancy, trauma or malignancy and whether associated with multi-organ failure or not), thrombotic thrombocytopenic purpura, thromboangiitis obliterans, or thro
  • renal dialysis e.g., cardiopulmonary bypass or other oxygenation procedure, plasmapheresis
  • thrombotic complications associated with instrumentation e.g. cardiac or other intravascular catheterization, intra-aortic balloon pump, coronary stent or cardiac valve
  • those involved with the fitting of prosthetic devices e.g., those involved with the fitting of prosthetic devices.
  • “Therapeutically effective amount” means an amount of Compound A or the co-administered therapeutic agent of the present invention that is effective to treat a target disease or condition when administered in combination.
  • therapeutically effective amount is the amount of each agent in the combination that is sufficient for the combination therapy to be effective in reducing, treating or preventing undesired thrombosis. It is contemplated that in some embodiments, the therapeutically effective amounts of the one or all agents in the combination therapy are lower than the amounts needed to produce the same level of effect when the agents are used alone.
  • the therapeutically effective amount will vary depending upon the specific combination, the subject and disease condition being treated, the weight and age of the subject, the severity of the disease condition, the dosing regimen to be followed, timing of administration, the manner of administration and the like, all of which can be determined readily by one of ordinary skill in the art.
  • “Sub-therapeutic dosage” refers to a dosage that is lower than the optimal dosage for a therapeutic agent when used as a single agent, but when used in the combinations described herein, provides a therapeutic result.
  • Antiplatelet agents or “platelet inhibitors” are agents that block the formation of blood clots by preventing the aggregation of platelets.
  • GP IIb/IIIa antagonists such as abciximab (ReoPro®), eptifibatide (Integrilin®), and tirofiban (Aggrastat®); P2Y 12 receptor antagonists, such as clopidogrel (Plavix®), ticlopidine (Ticlid®), cangrelor, ticagrelor (also known as AZD 6140), and prasugrel (also known as CS-747 and LY640315); phosphodiesterase III (PDE III) inhibitors, such as cilostazol (Pletal®), dipyridamole (Persantine®) and Aggrenox® (aspirin/extended-release dipyridamole); thromboxane synthase inhibitors, such
  • Anticoagulant agents are agents that prevent blood clot formation.
  • anticoagulant agents include, but are not limited to, specific inhibitors of thrombin, factor IXa, factor Xa, factor XIa, factor XIIa or factor VIIa, heparin and derivatives, vitamin K antagonists, and anti-tissue factor antibodies.
  • specific inhibitors of thrombin include hirudin, bivalirudin (Angiomax®), dabigatran (Pradaxa®), argatroban and lepirudin (Refludan®).
  • heparin and derivatives examples include unfractionated heparin (UFH), low molecular weight heparin (LMWH), such as enoxaparin (Lovenox®), dalteparin (Fragmin®), and danaparoid (Orgaran®); and synthetic pentasaccharide, such as fondaparinux (Arixtra®)
  • vitamin K antagonists include warfarin (Coumadin®), phenocoumarol, acenocoumarol (Sintrom®), clorindione, dicumarol, diphenadione, ethyl biscoumacetate, phenprocoumon, phenindione, and tioclomarol.
  • injectable anticoagulants are anticoagulant agents that are administered to a mammal through injections.
  • injectable anticoagulants are unfractionated heparin, low molecular weight heparins, and synthetic pentasaccharides.
  • Anti-inflammatory agents are agents used for the treatment of inflammatory conditions or diseases.
  • anti-inflammatory agents include non-steroidal anti-inflammatory agents, acetylsalicylic acid (Aspirin®), piroxicam (Feldene®), indomethacin (Indocin®), mesalamine (Pentasa®, Rowasa®, Asacol®), sulfasalazine (Azulfidine®), methotrexate (Rheumatrex®), leflunomide (Arava®); tumor necrosis factor antagonists, such as adalimubab (Humira®), etanercept (Enbrel®), and infliximab (Remicade®); interleukin 1 receptor antagonist, such as anakinra (Kineret®); cyclooxygenase-2 inhibitors and rheumatoid arthritis agents.
  • Blood pressure lowering agents or “anti-hypertensive agents” are agents that are used to treat hypertension, a condition in which the blood pressure is chronically higher than normal. Persistent hypertension is one of the risk factors for strokes, heart attacks, heart failure and arterial aneurysm, and is a leading cause of chronic renal failure.
  • blood pressure lowering agents include calcium channel blockers, such as verapamil (Calan®, Isoptin®), diltiazem (Cardizem®), amlodipine (Norvasc®), and nifedipine (Adalat®), Procardia®); diuretics, such as hydrochlorothiazide, metolazone (Zaroxolyn®), furosemide (Lasix®), bumetanide (Bumex®), spironolactone (Aldactone®), and eplerenone (Inspra®); beta-adrenergic antagonists (beta blockers), such as metoprolol (Lopressor®), nadolol (Corgard®), pindolol (Visken®) propranolol (Inderal®), timolol (Blocadren®), and Betaxolol (Betoptic®); angiotensin converting enzyme (ACE) inhibitors,
  • Thrombolytic agents or “fibrinolytic agents” are agents that are able to break down an existing blood clot.
  • thrombolytic agents include natural and recombinant tissue plasminogen activators, anistreplase, dual and single chain urokinases (urokinase-type plasminogen activators (uPA)), streptokinase, tenecteplase (TNK), lanoteplase (nPA), factor VIIa inhibitors, PAI-1 inhibitors (inactivators of tissue plasminogen activator inhibitors), and alpha2 anti-plasmin inhibitors.
  • tissue plasminogen activators anistreplase
  • dual and single chain urokinases urokinase-type plasminogen activators (uPA)
  • streptokinase streptokinase
  • TNK tenecteplase
  • nPA lanoteplase
  • factor VIIa inhibitors factor VIIa inhibitor
  • Antiarrhythmic agents are agents that are used to treat disorders of the heart rate and rhythm.
  • antiarrhythmic agents include Class I agents which interfere with the sodium channel, such as quinidine (Apo-Quinidine®), procainamide (Pronestyl®), propafenone (Rythmol®), lidocaine (Xylocalne®) and disopyramide (Norpace®); Class II agents which are beta blockers, such as carvedilol (Coreg®) and propranolol (Inderal®); Class III agents which block the potassium channels, such as sotalol (Badorece®), dofetilide (Tikosyn®), amiodarone (Cordarone®), azimilide and ibutilide (Corvert®); Class IV agents which are calcium channel blockers, such as verapamil (Calan®, Verelan®) and diltiazem (Cardizem®) and cardiac glycosides, such as digoxin (Lanoxin®); and
  • “Cholesterol and triglyceride lowering agents” are agents used to lower the amount of cholesterol or lipid present in the blood. Abnormally high levels of cholesterol are associated with atherosclerosis, which is a major cause of coronary heart diseases and other forms of cardiovascular disease.
  • cholesterol lowering agents include resins (bill acid binders or bile acid sequestrants), such as cholestyramine (Questran®, Prevalite®, Lo-Cholest®), colestipol (Colestid®), colesevelam (WelChol®); fibrates, such as ciprofibrate (Modalim®), gemfibrozil (Lopid®), fenofibrate (TriCor®) and bezafibrate (Bezalip®); statins, such as atorvastatin (Lipitor®), fluvastatin (Lescol®), lovastatin (Mevacor®, Altocor®), itavastatin (also known as, NK-104 or nisvastatin or nisbastatin), mevastatin (Capactin®), pitavastatin (Livalo®, Pitava®), pravastatin (Pravachol®, Lipostat®), rosuvastatin (Crestor), and simva
  • salts are meant to include salts of the active compounds which are prepared with relatively nontoxic acids or bases, depending on the particular substituents found on the particular therapeutic agents described herein.
  • base addition salts can be obtained by contacting the neutral form of such compounds with a sufficient amount of the desired base, either neat or in a suitable inert solvent.
  • salts derived from pharmaceutically-acceptable inorganic bases include aluminum, ammonium, calcium, copper, ferric, ferrous, lithium, magnesium, manganic, manganous, potassium, sodium, zinc and the like.
  • Salts derived from pharmaceutically-acceptable organic bases include salts of primary, secondary and tertiary amines, including substituted amines, cyclic amines, naturally-occurring amines and the like, such as arginine, betaine, caffeine, choline, N,N′-dibenzylethylenediamine, diethylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, glucamine, glucosamine, histidine, hydrabamine, isopropylamine, lysine, methylglucamine, morpholine, piperazine, piperidine, polyamine resins, procaine, purines, theobromine, triethylamine, trimethylamine, tripropylamine, tromethamine and the like.
  • acid addition salts can be obtained by contacting the neutral form of such compounds with a sufficient amount of the desired acid, either neat or in a suitable inert solvent.
  • pharmaceutically acceptable acid addition salts include those derived from inorganic acids like hydrochloric, hydrobromic, nitric, carbonic, monohydrogencarbonic, phosphoric, monohydrogenphosphoric, dihydrogenphosphoric, sulfuric, monohydrogensulfuric, hydriodic, or phosphorous acids and the like, as well as the salts derived from relatively nontoxic organic acids like acetic, propionic, isobutyric, malonic, benzoic, succinic, suberic, fumaric, mandelic, phthalic, benzenesulfonic, p-tolylsulfonic, citric, tartaric, methanesulfonic, and the like.
  • salts of amino acids such as arginate and the like, and salts of organic acids like glucuronic or galactunoric acids and the like (see, e.g., Berge, S. M., et al, “Pharmaceutical Salts”, Journal of Pharmaceutical Science, 1977, 66: 1-19).
  • Certain specific therapeutic agents contain both basic and acidic functionalities that allow the compounds to be converted into either base or acid addition salts.
  • the acid is preferably selected from the group consisting of hydrochloric, lactic, maleic, phenoxyacetic, propionic, succinic, adipic, ascorbic, camphoric, gluconic, phosphic, tartric, citric, methanesulfonic, fumaric, glycolic, naphthalene-1,5-disulfonic, gentisic and benzenesulfonic.
  • the acid is selected from the group consisting of hydrochloric, lactic, maleic, phenoxyacetic, propionic, and succinic.
  • the acid is maleic acid.
  • the ion form of the salt is used. For example, if Compound A forms a salt with maleic acid, the salt is referred to as the maleate salt.
  • One embodiment of the maleate salt of Compound A exists as Formula I
  • the salt of Formula I may exist in a crystalline polymorph as disclosed in U.S. Patent Publication US2007/0112039.
  • One crystalline polymorph form of Formula I exhibits a powder X-ray diffraction pattern having at least four and preferably eight of the following approximate characteristic peak locations: 4.9, 9.7, 13.8, 14.1, 15.2, 17.6, 18.5, 20.8, 21.6, 22.7, 24.1, 26.3, 26.8 degrees 20.
  • the powder X-ray diffraction pattern has approximate characteristic peak locations of 4.9, 9.7, 11.8, 13.8, 14.1, 15.2, 17.6, 18.5, 19.9, 20.8, 21.6, 22.7, 24.1, 25.0, 26.3, 26.8 degrees 20.
  • the neutral forms of the therapeutic agents may be regenerated by contacting the salt with a base or acid and isolating the parent therapeutic agent in the conventional manner.
  • the parent form of the therapeutic agent differs from the various salt forms in certain physical properties, such as solubility in polar solvents, but otherwise the salts are equivalent to the parent form for the purposes of the present invention.
  • certain therapeutic agents are in a prodrug form.
  • Prodrugs of the therapeutic agents are those compounds that readily undergo chemical changes under physiological conditions to provide the compound having therapeutic activities.
  • prodrugs can be converted to the active compound by chemical or biochemical methods in an ex vivo environment. For example, prodrugs can be slowly converted to the active compound described in the invention when placed in a transdermal patch reservoir with a suitable enzyme or chemical reagent.
  • Certain therapeutic agents described in the invention can exist in unsolvated forms as well as solvated forms, including hydrated forms.
  • the solvated forms are equivalent to unsolvated forms and are intended to be encompassed within the scope of the present invention.
  • Certain therapeutic agents may exist in multiple crystalline or amorphous forms. In general, all physical forms are equivalent for the uses contemplated by the present invention and are intended to be within the scope of the present invention.
  • “Pharmaceutically acceptable carriers” refers to any diluents, excipients, or carriers that may be used in the compositions of the invention.
  • Pharmaceutically acceptable carriers include ion exchangers, alumina, aluminum stearate, lecithin, serum proteins, such as human serum albumin, buffer substances, such as phosphates, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethylcellulose, polyacrylates, waxes, polyethylene-polyoxypropylene-block polymers, polyethylene glycol and wool fat.
  • Suitable pharmaceutical carriers are described in Remington's Pharmaceutical Sciences , Mack Publishing Company, a standard reference text in this field. They are preferably selected with respect to the intended form of administration, that is, oral tablets, capsules, elixirs, syrups and the like, and consistent with conventional pharmaceutical practices.
  • the present invention provides novel methods for treating a condition in a mammal characterized by undesired thrombosis, comprising administering to said mammal a therapeutically effective amount of the Compound A, having the following formula:
  • the other therapeutically effective agent is selected from an antiplatelet agent, an anticoagulant agent, an inflammatory agent, a blood pressure lowering agent and combinations thereof.
  • Compound A and the other therapeutic agent can be combined with another agent selected from a thrombin inhibitor, a thrombolytic agent, an antiarrhythmic agent, a cholesterol or triglyceride agent and combination thereof.
  • the invention provides a method for treating a condition in a mammal characterized by undesired thrombosis comprising administering to said mammal a therapeutically effective amount of:
  • the antiplatelet agent is a GP IIb/IIIa receptor antagonist.
  • the antiplatelet agent is a P2Y 12 receptor antagonist.
  • the antiplatelet agent is a phosphodiesterase III inhibitor.
  • the antiplatelet agent is a thromboxane synthase inhibitor.
  • the antiplatelet agent is a thromboxane A2 receptor antagonist.
  • the antiplatelet agent is a thrombin receptor antagonist.
  • the antiplatelet agent is an inhibitor of p selectin.
  • the antiplatelet agent is selected from the group consisting of: abciximab, eptifibatide, tirofiban, acetylsalicylic acid, cangrelor, ticagrelor, clopidogrel, ticlopidine, prasugrel, dipyridamole, aggrenox, SCH530348, PSI-697, ifetroban, cilostazol, isbogrel, furegrelate, ramatroban, ridogrel, terbogrel, Servier S 18886 and ozagrel.
  • the antiplatelet agent is eptifibatide.
  • the antiplatelet agent is clopidogrel.
  • the invention provides a method for treating a condition in a mammal characterized by undesired thrombosis comprising administering to said mammal a therapeutically effective amount of:
  • the anticoagulant agent is selected from the group consisting of specific inhibitors of thrombin, factor IXa, factor XIa, factor XIIa or factor VIIa, synthetic pentasaccharides, low molecular weight heparin, anti-tissue factor antibody and combinations thereof.
  • the anticoagulant agent is an injectable anticoagulant agent.
  • the anticoagulant agent is selected from the group consisting of bivalirudin, dabigatran, argatroban, lepirudin, warfarin, and phenocoumarol.
  • the anticoagulant agent is selected from the group consisting of fondaparinux, danaparoid, enoxaparin, dalteparin and unfractionated heparin.
  • the anticoagulant agent is enoxaparin.
  • the invention provides a method for treating a condition in a mammal characterized by undesired inflammation or undesired thrombosis comprising administering to said mammal a therapeutically effective amount of:
  • the anti-inflammatory agent is selected from the group consisting of non-steroidal anti-inflammatory agents, tumor necrosis factor antagonists, interleukin 1 receptor antagonists, cyclooxygenase-2 inhibitors and rheumatoid arthritis agents.
  • the anti-inflammatory agent is selected from the group consisting of acetylsalicylic acid, piroxicam, indomethacin, mesalamine, sulfasalazine, methotrexate, leflunomide, etanercept, infliximab, adalimubab, and anakinra.
  • the anti-inflammatory agent is acetylsalicylic acid.
  • the invention provides a method for treating a condition in a mammal characterized by undesired thrombosis comprising administering to said mammal a therapeutically effective amount of:
  • the blood pressure lowering agent is selected from the group consisting of diuretics, beta blockers, angiotensin converting enzyme inhibitors, angiotensin 2 receptor antagonists, and calcium channel blockers.
  • the blood pressure lowering agent is verapamil.
  • the blood pressure lowering agent is diltiazem.
  • the blood pressure lowering agent is amiodarone.
  • the blood pressure lowering agent is metoprolol.
  • the blood pressure lowering agent is carvedilol.
  • At least one of the therapeutic agents is administered in a sub-therapeutic dosage.
  • both of the therapeutic agents are administered in sub-therapeutic dosages.
  • the two therapeutic agents are administered simultaneously.
  • the two therapeutic agents are administered sequentially.
  • the pharmaceutically acceptable salt of [2-( ⁇ 4-[(dimethylamino)iminomethyl]phenyl ⁇ carbonylamino)-5-methoxyphenyl]-N-(5-chloro(2-pyridyl))carboxamide is the maleate salt.
  • the method further comprises administering to said mammal a therapeutically effective amount of:
  • a therapeutic agent selected from other antiplatelet agents, anticoagulant agents, thrombin inhibitors, thrombolytic agents, anti-arrhythmic agents, blood pressure lowering agents, cholesterol, and triglyceride lowering agents.
  • the condition is selected from the group consisting of: acute coronary syndrome, myocardial infarction, unstable angina, refractory angina, occlusive coronary thrombus occurring post-thrombolytic therapy or post-coronary angioplasty, a thrombotically mediated cerebrovascular syndrome, embolic stroke, thrombotic stroke, transient ischemic attacks, venous thrombosis, deep venous thrombosis, pulmonary embolus, coagulopathy, disseminated intravascular coagulation, thrombotic thrombocytopenic purpura, thromboangiitis obliterans, thrombotic disease associated with heparin-induced thrombocytopenia, thrombotic complications associated with extracorporeal circulation, thrombotic complications associated with instrumentation, and thrombotic complications associated with the fitting of prosthetic devices.
  • compositions comprising a compound of the following formula:
  • the invention provides a pharmaceutical composition comprising:
  • the antiplatelet agent is a GP IIb/IIIa receptor antagonist.
  • the antiplatelet agent is a P2Y 12 receptor antagonist.
  • the antiplatelet agent is a phosphodiesterase III inhibitor.
  • the antiplatelet agent is a thromboxane synthase inhibitor.
  • the antiplatelet agent is a thromboxane A2 receptor antagonist.
  • the antiplatelet agent is a thrombin receptor antagonist.
  • the antiplatelet agent is an inhibitor of p selectin.
  • the antiplatelet agent is selected from the group consisting of: abciximab, eptifibatide, tirofiban, acetylsalicylic acid, cangrelor, ticagrelor, clopidogrel, ticlopidine, prasugrel, dipyridamole, aggrenox, SCH530348, ifetroban, cilostazol, isbogrel, furegrelate, ramatroban, ridogrel, terbogrel, Servier S18886 and ozagrel.
  • the antiplatelet agent is eptifibatide.
  • the antiplatelet agent is clopidogrel.
  • the invention provides a pharmaceutical composition comprising:
  • the anticoagulant agent is selected from the group consisting of specific inhibitors of thrombin, factor IXa, factor Xa, factor XIIa, factor XIa or factor VIa, synthetic pentasaccharide, low molecular weight heparin, anti tissue factor antibodies and combinations thereof.
  • the anticoagulant agent is an injectable anticoagulant agent.
  • the anticoagulant agent is selected from the group consisting of bivalirudin, dabigatran, argatroban, lepirudin, warfarin, and phenocoumarol.
  • the anticoagulant agent is selected from the group consisting of fondaparinux, danaparoid, enoxaparin, dalteparin and unfractionated heparin.
  • the anticoagulant agent is enoxaparin.
  • the invention provides a pharmaceutical composition comprising:
  • the anti-inflammatory agent is selected from the group consisting of non-steroidal anti-inflammatory agents, tumor necrosis factor antagonists, interleukin 1 receptor antagonists, cyclooxygenase-2 inhibitors and rheumatoid arthritis agents.
  • the anti-inflammatory agent is selected from the group consisting of acetylsalicylic acid, piroxicam, indomethacin, mesalamine, sulfasalazine, methotrexate, leflunomide, etanercept, infliximab, adalimubab, and anakinra.
  • the anti-inflammatory agent is acetylsalicylic acid.
  • the invention provides a pharmaceutical composition comprising:
  • the blood pressure lowering agent is selected from the group consisting of diuretics, beta blockers, angiotensin converting enzyme inhibitors, angiotensin 2 receptor antagonists and calcium channel blockers.
  • the blood pressure lowering agent is verapamil.
  • the blood pressure lowering agent is diltiazem.
  • the blood pressure lowering agent is amiodarone.
  • the blood pressure lowering agent is metoprolol.
  • the blood pressure lowering agent is carvedilol.
  • At least one of the therapeutic agents is present in a sub-therapeutic dosage.
  • both of the therapeutic agents are present in sub-therapeutic dosages.
  • the pharmaceutically acceptable salt of [2-( ⁇ 4-[(dimethylamino)iminomethyl]phenyl ⁇ carbonylamino)-5-methoxyphenyl]-N-(5-chloro(2-pyridyl))carboxamide is the maleate salt.
  • composition further comprises:
  • a therapeutic agent selected from other antiplatelet agents, other anti-coagulants, thrombin inhibitors, thrombolytic agents, anti-arrhythmic agents, blood pressure lowering agents, cholesterol or triglyceride lowering agents.
  • the invention provides a kit comprising:
  • a first container wherein said container contains [2-( ⁇ 4-[(dimethylamino)iminomethyl]phenyl ⁇ carbonylamino)-5-methoxyphenyl]-N-(5-chloro(2-pyridyl))carboxamide, or a pharmaceutically acceptable salt thereof, and
  • said container contains another therapeutic agent selected from the group consisting of antiplatelet agents, anticoagulant agents, and anti-inflammatory agents.
  • the invention provides a kit further comprising:
  • the pharmaceutically acceptable salt of [2-( ⁇ 4-[(dimethylamino)iminomethyl]phenyl ⁇ carbonylamino)-5-methoxyphenyl]-N-(5-chloro(2-pyridyl))carboxamide is the maleate salt.
  • At least one of the therapeutic agents is present in a sub-therapeutic dosage.
  • both of the therapeutic agents are present in sub-therapeutic dosages.
  • the present invention provides methods of treating a condition in a mammal characterized by undesired thrombosis using a combination of Compound A with another therapeutic agent.
  • a combination of Compound A with an antiplatelet agent, eptifibatide, at concentrations which individually do not produce significant inhibition of thrombosis under the experimental conditions, has been shown to have substantially enhanced antithrombotic activity in flow based assay systems (Example 4).
  • Example 5 shows the synergism between Compound A and clopidogrel, an antagonist of the platelet P2Y 12 receptor in inhibition of rat arterial thrombosis.
  • Example 13 corroborates the antithrombotic effect of factor Xa and P2Y 12 dual inhibition by showing that a significantly lower plasma concentration of Compound A was able to produce a significant delay in thrombosis formation and occlusion times in mice with deficient P2Y 12 expression on platelet as compared to the plasma concentration of Compound A needed to produce similar levels of delay in wild-type mice.
  • a combination of Compound A and an injectable anticoagulant agent will provide superior safety profile for a given level of anticoagulation, leading to improved clinical results.
  • an antiplatelet agent e.g. combination of a GP IIb/IIIa antagonist with unfractionated heparin or a GP IIb/IIIa antagonist with specific thrombin inhibitor bivalirudin
  • an anticoagulant agent e.g. combination of a GP IIb/IIIa antagonist with unfractionated heparin or a GP IIb/IIIa antagonist with specific thrombin inhibitor bivalirudin
  • Compound A has been shown to have a wider dose range (80 mg and 30 mg/day) in a Phase II trial.
  • Compound A at doses of 30 mg and 80 mg/day was effective in preventing venous thromboembolic events such as symptomatic or asymptomatic deep vein thrombosis and pulmonary embolism.
  • More on the effective unit dose of Compound A can be found in PCT/US2007/084887 filed Nov. 15, 2007, entitled “Unit Dose Formulation and Methods of Treating Thrombosis with an Oral Factor Xa Inhibitor,” Attorney Docket No. 070545-1510.
  • the level of antithrombotic efficacy was comparable to that attained by the low molecular weight heparin enoxaparin (Example 6) (Turpie, AG, et al, Abstract # P-T-652, XXIst Congress of the International Society of Thrombosis and Homeostasis, Geneva, July, 2007).
  • data from the trial show a wider safety margin than is available with current anticoagulant agents.
  • Recent data evaluating bleeding time in monkeys show that therapeutic levels of Compound A (plasma concentrations between 5 to 25 ng/mL) did not cause extension of bleeding (see Example 7).
  • the novel combination of Compound A with an existing antiplatelet agent inhibits thrombus formation with a wider safety margin.
  • Compound A is considered a potential bridging oral anticoagulant agent to be used in combination with low molecular weight heparin or pentasaccharide.
  • a combination of Compound A and a standard anti-inflammatory agent provides superior efficacy profile for reduction in levels of circulating cytokines, which can lead to improved therapeutic responses in diseases such as atherosclerosis which are known to be mediated by inflammatory stimuli.
  • Oral anticoagulants such as warfarin are not capable of reduction of circulating markers of inflammation and achieving systemic effects in the vasculature.
  • the responses of endothelial cell activation include, induction of the expression of tissue factor, a membrane glycoprotein that promotes thrombosis, and of E-selectin, a cell adhesion molecule that promotes inflammation. It was demonstrated that synergistic interactions between factor Xa and the pro-inflammatory cytokines, tumor necrosis factor, interleukin 1 or CD40L, enhanced expression of tissue factor and E-selectin in endothelial cells (PNAS). These synergistic interactions led to amplification of cytokine-induced inflammatory activity such as activation of endothelial cells.
  • Compound A a factor Xa inhibitor
  • Compound A did not exhibit a statistically significant effect on the reduction of the amount of cytokine released from blood cells in an ex vivo human whole blood system when used alone.
  • Compound A when Compound A was added to blood from aspirated donors, it provided additional suppression of cytokine release over that provided by aspirin alone in a dose responsive manner (see Example 9).
  • This shows that a combination of Compound A with anti-inflammatory agents has the potential of achieving additional anti-inflammatory therapeutic benefit since cytokines are among the principal mediators of inflammation.
  • blood pressure lowering drugs such as beta blockers or calcium channel blockers and Compound A may be used concomitantly.
  • Drugs like verapamil are known inhibitors of p-glycoprotein function.
  • Compound A has been identified to be a substrate of p-glycoprotein in in vitro evaluations.
  • experimental results of the present invention in telemeterized dogs using a combination of Compound A and verapamil show that the plasma concentrations of Compound A in dogs with dual treatment were about two times higher than those on single treatment.
  • Compound A did not change the measures of blood pressure upon coadministration with verapamil, providing evidence that Compound A may be safely used with a blood pressure reducing agent such as verapamil. See Example 10.
  • the method of treatment using a combination of Compound A and another therapeutic agent will not produce undesired drug-drug interaction or other additional side effects over the agents alone.
  • the combination can offer an efficacy or safety advantage over the agents alone and/or produces a synergic effect.
  • Synergism can be in terms of increased antithrombotic efficacy, improved safety profile, or other beneficial effect of the combination as compared with the individual agent. It occurs when the therapeutic effect of the compounds when administered in combination is greater than the additive effect of the compounds when administered alone as a single agent. In such a case, the therapeutically effective amount of the agents in the combination therapy may be lower than the effective or optimal amount needed when the agents are used alone.
  • the combination preferably allows one of the therapeutic agents to be used at a sub-therapeutic dosage. In one embodiment, the combination allows both therapeutic agents to be used at sub-therapeutic dosages.
  • Compound A and the other therapeutic agent may be formulated into two separate pharmaceutical compositions. They may be administered at the same time or sequentially in any order. Preferably, when administered sequentially, the two agents are administered sufficiently closely in time so that the desired therapeutic effect can be provided. Compound A and the other therapeutic agent may also be formulated into a single pharmaceutical composition. Compound A and two other therapeutic agents may also be administered at the same time or sequentially in any order. Preferably, when administered sequentially, the three agents are administered sufficiently closely in time so that the desired therapeutic effect can be provided. They may also be formulated into a single pharmaceutical composition or any two of them may be formulated into a single pharmaceutical composition.
  • the present invention further provides a novel composition
  • a novel composition comprising Compound A or a pharmaceutically acceptable salt thereof, another therapeutic agent, and a pharmaceutically acceptable carrier.
  • compositions of the invention can be manufactured by methods well known in the art such as conventional granulating, mixing, dissolving, encapsulating, lyophilizing, or emulsifying processes, among others.
  • Compositions may be produced in various forms, including granules, precipitates, or particulates, powders, including freeze dried, rotary dried or spray dried powders, amorphous powders, tablets, capsules, syrup, suppositories, injections, emulsions, elixirs, suspensions or solutions.
  • Formulations may optionally contain stabilizers, pH modifiers, surfactants, bioavailability modifiers and combinations of these.
  • compositions may be prepared as liquid suspensions or solutions using a sterile liquid, such as oil, water, alcohol, and combinations thereof.
  • a sterile liquid such as oil, water, alcohol, and combinations thereof.
  • Pharmaceutically suitable surfactants, suspending agents or emulsifying agents, may be added for oral or parenteral administration.
  • Suspensions may include oils, such as peanut oil, sesame oil, cottonseed oil, corn oil and olive oil.
  • Suspension preparation may also contain esters of fatty acids, such as ethyl oleate, isopropyl myristate, fatty acid glycerides and acetylated fatty acid glycerides.
  • Suspension formulations may include alcohols, such as ethanol, isopropyl alcohol, hexadecyl alcohol, glycerol and propylene glycol.
  • Ethers such as poly(ethyleneglycol), petroleum hydrocarbons, such as mineral oil and petrolatum, and water may also be used in suspension formulations.
  • compositions of this invention are formulated for pharmaceutical administration to a mammal, preferably a human being.
  • Such pharmaceutical compositions of the invention may be administered orally, parenterally, by inhalation spray, topically, rectally, nasally, buccally, vaginally or via an implanted reservoir.
  • parenteral as used herein includes subcutaneous, intravenous, intramuscular, intra-articular, intra-synovial, intrasternal, intrathecal, intrahepatic, intralesional and intracranial injection or infusion techniques.
  • the compositions are administered orally or intravenously.
  • the formulations of the invention may be designed as short-acting, fast-releasing, long-acting, sustained-releasing.
  • compounds can be administered in a local rather than systemic means, such as administration (e.g., injection) as a sustained release formulation.
  • Sterile injectable forms of the compositions of this invention may be aqueous or oleaginous suspension. These suspensions may be formulated according to techniques known in the art using suitable dispersing or wetting agents and suspending agents.
  • the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example as a solution in 1,3-butanediol.
  • the acceptable vehicles and solvents that may be employed are water, Ringer's solution and isotonic sodium chloride solution.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose, any bland fixed oil may be employed including synthetic mono- or di-glycerides.
  • Fatty acids such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions.
  • These oil solutions or suspensions may also contain a long-chain alcohol diluent or dispersant, such as carboxymethyl cellulose or similar dispersing agents which are commonly used in the formulation of pharmaceutically acceptable dosage forms including emulsions and suspensions.
  • Other commonly used surfactants such as Tweens, Spans and other emulsifying agents or bioavailability enhancers which are commonly used in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms may also be used for the purposes of formulation.
  • Compounds may be formulated for parenteral administration by injection such as by bolus injection or continuous infusion.
  • a unit dosage form for injection may be in ampoules or in multi-dose containers.
  • compositions of this invention may be in any orally acceptable dosage form, including capsules, tablets, aqueous suspensions or solutions.
  • carriers that are commonly used include lactose and corn starch.
  • Lubricating agents such as magnesium stearate, are also typically added.
  • useful diluents include lactose and dried cornstarch.
  • aqueous suspensions are required for oral use, the active ingredient is combined with emulsifying and suspending agents. If desired, certain sweetening, flavoring or coloring agents may also be added.
  • compositions of this invention may be in the form of suppositories for rectal administration. These may be prepared by mixing the agent with a suitable non-irritating excipient which is solid at room temperature but liquid at rectal temperature and therefore will melt in the rectum to release the drug.
  • suitable non-irritating excipient include cocoa butter, beeswax and polyethylene glycols.
  • compositions of this invention may also be in a topical form, especially when the target of treatment includes areas or organs readily accessible by topical application, including diseases of the eye, the skin, or the lower intestinal tract. Suitable topical formulations are readily prepared for each of these areas or organs.
  • Topical application for the lower intestinal tract may be effected in a rectal suppository formulation (see above) or in a suitable enema formulation. Topically-transdermal patches may also be used.
  • the pharmaceutical compositions may be formulated in a suitable ointment containing the active component suspended or dissolved in one or more carriers.
  • Carriers for topical administration of the compounds of this invention include, but are not limited to, mineral oil, liquid petrolatum, white petrolatum, propylene glycol, polyoxyethylene, polyoxypropylene compound, emulsifying wax and water.
  • the pharmaceutical compositions may be formulated in a suitable lotion or cream containing the active components suspended or dissolved in one or more pharmaceutically acceptable carriers. Suitable carriers include mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters, wax, cetyl alcohol, 2-octyldodecanol, benzyl alcohol and water.
  • the pharmaceutical compositions may be formulated as micronized suspensions in isotonic, pH adjusted sterile saline, or, preferably, as solutions in isotonic, pH adjusted sterile saline, either with or without a preservative, such as benzylalkonium chloride.
  • the pharmaceutical compositions may be formulated in an ointment, such as petrolatum.
  • compositions of this invention may also be administered by nasal aerosol or inhalation.
  • Such compositions are prepared according to techniques known in the art of pharmaceutical formulation and may be prepared as solutions in saline, employing benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, fluorocarbons and/or other conventional solubilizing or dispersing agents.
  • a therapeutically effective dose may vary depending upon the route of administration and dosage form.
  • the preferred combination of the invention is a formulation that exhibits a high therapeutic index.
  • the therapeutic index is the dose ratio between toxic and therapeutic effects which can be expressed as the ratio between LD 50 and ED 50 .
  • the LD 50 is the dose lethal to 50% of the population and the ED 50 is the dose therapeutically effective in 50% of the population.
  • the LD 50 and ED 50 are determined by standard pharmaceutical procedures in animal cell cultures or experimental animals.
  • Combination therapies of this invention may be administered in a single daily dose, or may be administered two, three, or four times daily.
  • Compound A or a salt or mixture of salts of Compound A is compounded with a physiologically acceptable vehicle, carrier, excipient, binder, preservative, stabilizer, dye, flavor etc., as called for by accepted pharmaceutical practice.
  • a physiologically acceptable vehicle, carrier, excipient, binder, preservative, stabilizer, dye, flavor etc. as called for by accepted pharmaceutical practice.
  • Compound A and the co-administrating agent are formulated into a single pharmaceutical composition, about 0.5 to 500 mg of the co-administering agent is added to the above composition.
  • the amount of the active ingredient(s) in these compositions is such that a suitable dosage in the range indicated below is obtained.
  • a typical dosage of Compound A in the combination therapies will range from about 0.001 mg/kg to about 1000 mg/kg, preferably from about 0.01 mg/kg to about 2.0 mg/kg, and more preferably from about 0.1 mg/kg to about 1.5 mg/kg, and even more preferably from about 0.4 mg/kg to about 1.2 mg/kg. Still more preferably, the dosage of Compound A in the combinations is lower than 0.5 mg/kg.
  • the dosages of the other therapeutic agents when used alone are known to or can be obtained by those skilled in the art. It is contemplated that the dosages of these agents when used in combination with Compound A will not exceed the maximum dosages of the individual agents. Preferably, the dosages in the combination therapies are less than the maximum dosages and more preferably, the dosages in the combination therapies are sub-therapeutic dosages. It is contemplated that the dosages of Compound A or the other therapeutic agents may be adjusted to reflect the synergism of the combination therapies, which can be determined by one skilled in the art based on the information provided herein.
  • compositions described above are generally known to those skilled in the art and are included in the invention. It should be understood that a specific dosage and treatment regimen for any particular patient will depend upon a variety of factors, including the activity of the specific compound employed in the combination, the age, body weight, general health, sex and diet, renal and hepatic function of the patient, and the time of administration, rate of excretion, combination with other drugs, judgment of the treating physician or veterinarian and severity of the particular disease being treated. The amount of active ingredients will also depend upon the therapeutic agent combined with Compound A.
  • the invention further provides a novel kit or package.
  • the kit of the present invention comprises: (a) a first container containing Compound A or pharmaceutically acceptable salt forms thereof, and (b) a second container containing another therapeutic agent.
  • the kit further contains (c) a package insert stating that the two pharmaceutical agents can be used together for the treatment of a condition characterized by undesired thrombosis.
  • the kit also comprises a third container containing a third therapeutic agent and may further comprise a package insert stating that the three pharmaceutical agents can be used in combination to treat a condition characterized by undesired thrombosis.
  • the first, second and/or third container may be a bottle, jar, vial, flask, syringe, tube, bag, or any other container used in the manufacture, storage, or distribution of a pharmaceutical product.
  • the package insert can be a label, tag, marker, or the like, that recites information relating to the pharmaceutical composition of the kit. The information recited will usually be determined by the regulatory agency governing the area in which the pharmaceutical composition is to be sold, such as the United States Food and Drug Administration. Preferably, the package insert specifically recites the indications for which the pharmaceutical composition has been approved.
  • the package insert may be made of any material on which a person can read information contained therein or thereon.
  • the package insert is a printable material, such as paper, adhesive-backed paper, cardboard, foil, or plastic, and the like, on which the desired information has been printed or applied.
  • Phosphorous oxychloride (23.3 kg, 1.20 eq) was charged to the contents of the reactor via a metering pump, while maintaining a temperature of 25° C. (22-28° C.).
  • the metering pump and lines were rinsed forward with acetonitrile (12.5 kg, 0.5 parts), while keeping the temperature at 25° C. (22-28° C.).
  • the reaction mixture normally turned from a slurry to a clear solution after the addition of about 1 ⁇ 3 of the POCl 3 . At the end of the addition, it became turbid.
  • the reaction mixture was agitated at 25° C. (22-28° C.) for ca. 1 hr, at which time HPLC analysis confirmed reaction completion.
  • the solution was cooled to 15° C. (12-18° C.) and drinking water (156.3 kg, 6.25 parts) was charged slowly while keeping reaction temperature between 12 and 30° C.
  • the reaction mixture was then adjusted to 22° C. (19 to 25° C.) and agitated for ca. 5 hrs until exotherm ceased. Formation of a slurry was visually confirmed and the contents of the reactor were filtered onto a pressure nutsche fitted with filter cloth.
  • the reactor, pump, and lines were washed forward onto the pressure nutsche with two portions of drinking water (62.5 kg, 2.5 parts each).
  • the filtrate had a pH value of 7.
  • the product (41.8 kg) was dried under vacuum with a maximum temperature of water bath (to heat dryer jacket) of 50° C. After ca. 12 hrs, in-process LOD analysis indicated a solvent content of 0.72%.
  • the dry product (3) was discharged (34.4 kg) with 88.2% yield and 99.1% purity by HPLC.
  • the contents of the reactor were circulated through a conditioned celite pad (0.2-0.5 kg celite conditioned with 20-55 kg dichloromethane) prepared in an 8′′ sparkler filter to remove the platinum catalyst.
  • the reactor and celite bed were rinsed forward with two portions of dichloromethane (83 kg, 2.5 parts each).
  • the filtrate was transferred to and concentrated in a 570 L GLMS reactor under an atmospheric pressure to ca. 132 L (4 parts volume).
  • Ethanol (69 kg, 2.1 parts) was charged and concentration continued under atmospheric pressure to ca. 99 L (3 parts volume).
  • In-process NMR indicated that the dichloromethane content was 39%.
  • Ethanol (69 kg, 2.1 parts) was charged again and concentration continued again to ca. 99 L (3 parts volume).
  • the 4-cyanobenzoyl chloride/THF solution was charged to the reactor, keeping the temperature at ⁇ 30° C. and rinsing forward with THF (ca. 10 kg).
  • the resulting yellow-colored slurry was agitated at 22° C. (19 to 25° C.) for ca 2 hrs.
  • In-process HPLC taken after 2 hrs showed a compound 4 content of 0%, indicating completion of the reaction.
  • the slurry was filtered onto a pressure nutsche fitted with filter cloth.
  • the reactor, pump, lines, and wet cake were rinsed with three portions of ethanol (ca. 15 kg each).
  • the wet filter cake was discharged (65.4 kg) and transferred back to the reactor for slurry wash in ethanol (317 kg, 12 parts) at 22° C. (19 to 25° C.) for ca. 1 hr.
  • the slurry was filtered onto the pressure nutsche and the reactor, pump, lines, and wet filter cake were rinsed with two portions of ethanol (ca. 15 kg each) and two portions of THF (ca. 15 kg each).
  • the wet filter cake was dried under vacuum with a maximum temperature of warm glycol bath (to heat the reactor jacket) of 40° C. After 14.5 hrs of drying, LOD was 0.75%.
  • the dried material was milled (screen 0.125′′) to give 31.8 kg of compound 6, which was dried under vacuum for another 10.5 hrs. LOD after drying was 1.8%, and the product was discharged (31.5 kg) in 74.8% yield (expected 60-90%).
  • HPLC showed 100% purity.
  • a slurry of compound 6 (455 g, 1.0 eq.) in THF (4.67 kg, 10.3 parts) was prepared and adjusted to ⁇ 10° C.
  • Lithium dimethyl amide was prepared as follows: hexyllithium (2.3 N/hexane, 2.45 L, 5.5 eq.) was added to dimethylamine solution (2 N/THF, 2.8 L, 5.5 eq.) maintaining ⁇ 10° C.
  • the lithium dimethyl amide solution was charged into the slurry containing the compound 6 keeping the pot temperature of ⁇ 10° C.
  • the reaction progress was monitored by in-process HPLC which confirmed that the amount of compound 6 was ⁇ 1.0%.
  • a buffer solution of NaHCO 3 (490 g, 1.1 parts, 5.7 eq.) and Na 2 CO 3 (490 g, 1.1 parts, 4.5 eq.) in deionized water (6.6 kg, 14.51 parts) was prepared, and above reaction mixture was transferred to this aqueous solution maintaining ⁇ 5° C.
  • the product precipitated out and the resulting slurry was adjusted to 20° C. over a period of 12 hr.
  • the solid was filtered, and the resulting wet cake was washed with 3.5 kg (7.7 parts) of deionized water.
  • the solid was filtered off using a coarse frit glass bench filter, and rinsed forwarded with cold (0-5° C.) absolute ethanol (628 g, 1.4 parts).
  • the product Compound A was dried at 30-35° C. Dry product was obtained in 458 g (73% yield).
  • human plasma samples containing the peptide gly-pro-arg-pro (Pefabloc FG, Centerchem) as an anticlotting agent were treated with tissue factor (Innovin, Dade Behring) to initiate the generation of thrombin. After 10 min, the reaction was stopped by addition of EGTA. A chromogenic peptide substrate (Spectrozyme TH, American Diagnostica) specific for thrombin was added to measure the activity of thrombin generated during the tissue factor treatment period. After allowing the substrate cleavage reaction to proceed for 2 min, the samples were quenched with glacial acetic acid. The plasma samples were analyzed in triplicate in a 96-well plate format. Control samples containing pooled platelet poor plasma with or without added Compound A were assayed in quadruplicate on each plate. The control samples were used to establish plate acceptance criteria. Absorbance of each sample well was measured at 405 nm.
  • Thrombin generation (% Inhibition) was calculated from absorbance at 405 nm (A405) by the following equation:
  • the Baseline in the equation was the mean absorbance at 405 nm produced by pooled plasma in the absence of Compound A.
  • the coefficient of variation (CV) for both control and clinical samples was 20%. Since thrombin generation inhibition values were reported as a percentage there is no lower limit of quantitation in this assay.
  • FIG. 1 shows the % inhibition of thrombin generation produced by human plasma samples from healthy volunteers who were administered single ascending doses of Compound A.
  • FIG. 2 shows the % inhibition of thrombin generation produced by human plasma samples from healthy volunteers who were administered multiple ascending doses of Compound A.
  • the anti-factor Xa (anti-fXa) assay was adapted from a commercial kit (Diapharma COATEST LMW Heparin) and modified to a 96-well format. A low molecular weight heparin, dalteparin, included in the kit was used to construct a standard curve according to the manufacture's instruction using pooled platelets poor plasma. All samples and standards were assayed in duplicate. The limit of quantitation was 0.05 U/mL and results below 0.05 U/mL were reported as below the limit of quantitation. The upper limit of measurement for the plate assay was 1.0 U/mL and samples with anti-factor Xa units higher than 1.0 U/mL were re-assayed after dilution. The coefficient of variation (CV) for both standards and clinical samples were 10%.
  • CV coefficient of variation
  • FIG. 3 shows the anti-factor Xa units generated by plasma samples from healthy volunteers who were administered multiple ascending doses of Compound A.
  • Table 1 shows the dose responsive inhibition of thrombosis by Compound A and eptifibatide, a platelet GP IIb/IIIa receptor antagonist, upon perfusion of whole human blood over a collagen and tissue factor coated surface. Quantitation of fluorescently labeled fibrinogen/fibrin is shown for five blood donors.
  • a therapeutic concentration of the antiplatelet agent is not sufficient to inhibit thrombosis under the assay conditions.
  • ex vivo addition of the factor Xa inhibitor Compound A provides additional antithrombotic activity in a dose responsive manner.
  • administration of Compound A as a concomitant medication during the use of antiplatelet agents is likely to provide additional benefits of antithrombotic efficacy.
  • Table 2 shows that, when administered alone, Compound A produced a dose responsive inhibition of thrombosis as measured by the proportion of animals whose carotid artery does not occlude during the experiment. In particular, at 0.03 ⁇ M Compound A concentration a 30% inhibition of rat thrombosis (3 out of 10 tested animals did not occlude) was produced.
  • VTE venous thromboembolism
  • Safety endpoints included the incidence of major and clinically significant nonmajor bleeds through the day after venography. All efficacy and bleeding endpoints were adjudicated by a blinded, independent central adjudication committee.
  • Injectable heparins are often dose limited by their bleeding consequences which result in a narrow therapeutic window for treatment effects.
  • Agents such as enoxaparin have reduced bleeding at doses used for prophylaxis of venous thromboembolic diseases (30 mg dosed subcutaneously, 0.4 mg/kg) but produce hemorrhagic side effects at doses which are used to treat acute coronary syndrome patients (1 mg/kg).
  • Ex vivo clotting assays were carried out in pooled human plasma to study the combination anticoagulant effect of Compound A and enoxaparin.
  • Addition of a standard dose of low molecular weight heparin 0.5 U/mL enoxaparin, corresponding to the plasma concentration attained by a 30 mg dose
  • Addition of 10 nM or 15 nM of Compound A to the enoxaparin treated plasma provided an additional anticoagulant effect, as demonstrated by a 9 to 13% extension of aPTT values.
  • Cytokines released from the blood cells were quantitated in a Multiplexed Biomarker Immunoassay for Luminex Instrumentation (Millipore USA). Representative results for two cytokines (interleukin 6 and 8) are shown in Tables 6 and 7. When blood samples for healthy donors were treated with Compound A, the single treatment did not produce statistically significant inhibition of cytokine release in the blood samples. For example, in the plasma samples from six donors, the mean amount of interleukin 4 was 28.4 pg/mL in the untreated control and 26.8 to 29.4 pg/mL in the Compound A treated samples.
  • the study was designed to evaluate the in vivo effect of Compound A upon co-administration with a selective L type calcium channel blocker, verapamil.
  • Three beagle dogs were implanted with Data Science Telemetry transmitters (DSI model # TL11M2-D70-PCT) to measure conscious (un-anaesthetized) and unrestrained systolic and diastolic blood pressure following oral dosing with Compound A, verapamil or a combination of the two.
  • the study design was a three way crossover with one week between doses to ensure complete elimination of residual agents from the dogs' circulatory system. Data was analyzed for a twelve hour period, starting with one hour pre-oral dosing of Compound A and ending with eleven hours post-dosing. Data acquisition and analysis was performed using LDS Life Science Suite Ponemah P3 plus V 4.20 software with results reported as 10 minute averages for each animal.
  • AUC Area under the curve
  • PPP Human platelet poor plasma
  • PRP platelet rich plasma
  • thrombin generation in 100 ⁇ L reaction mixture 75 ⁇ L PRP was first mixed with CaCl 2 , convulxin, and Z-Gly-Gly-Arg-aminomethylcoumarin (Z-GGR-AMC, a thrombin fluorogenic substrate) for 3 minutes at 37° C., followed by adding tissue factor (Innovin, Dade Behring) to initiate the generation of thrombin.
  • a typical reaction mixture contained 15 mM Ca 2+ , 0.1 ⁇ g/mL convulxin, 100 ⁇ M Z-GGR-AMC, and 0.1 nM TF (tissue factor) (Innovin).
  • Thrombin formation was monitored continuously at 37° C. by a fluorometric plate reader (Molecular Devices) measuring the relative fluorescence units (RFU). Inhibitors were pre-incubated with plasma for 20 minutes at room temperature before adding CaCl 2 and convulxin.
  • Non-ASA represents result from donors free of aspirin.
  • ASA represents results from donors taken aspirin for at least three days.
  • Compound A was administered by intravenous infusions and aspirin was administered as an intravenous bolus approximately 30 min prior to the start of the experiment.
  • Ex vivo platelet aggregation induced by 10 ⁇ g/mL of collagen and clotting times were measured over the experimental time course (90 min) in all animals.
  • Compound A when administered alone, produced a dose responsive inhibition of thrombosis as measured by the proportion of animals whose carotid artery does not occlude during the experiment.
  • Compound A at plasma concentrations of 0.03, 0.1, and 0.3 ⁇ M produced a 30, 60, and 90% inhibition of rat thrombosis, respectively.
  • 3 out of 32 vehicle control animals did not occlude during the experiment yielding a 9.4% inhibition of thrombosis in the rat.
  • P2Y 12 antagonists such as clopidogrel are prescribed at doses that block 40-50% of the P2Y 12 receptors on platelets of treated patients. It has been shown that P2Y 12 +/ ⁇ mice which express 50% of the receptor on their platelets compared to wild type control (P2Y 12 +/+ ), display an intermediate thrombosis phenotype between wild type and mice completely deficient in P2Y 12 (P2Y 12 ⁇ / ⁇ ). (Andre, P., et al., J Clin Invest, 2003. 112(3):398-406). P2Y 12 regulates platelet adhesion/activation, thrombus growth, and thrombus stability in injured arteries. The effect of Compound A was studied in a thrombosis model with P2Y 12 +/ ⁇ mice to effectively mimic the combination of dual dosing of factor Xa inhibitor and P2Y 12 antagonist in humans.
  • Thrombosis on mouse mesenteric arteries was performed and recorded as previously described (Andre, P., et al., J Clin Invest, 2003. 112(3):398-406). Platelets were labeled in situ using rhodamine 6G (0.2 mg/mL) and administered through the tail vein 10 min before visualization of the arteries. Vessel-wall injury was triggered by a 1 ⁇ 1-mm filter paper saturated with a 10% FeCl 3 solution. After 5 minutes, the filter paper was removed and mesenteric arteries rinsed with warmed saline (37° C.).

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CA2683793A1 (en) 2008-10-23
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US20130315897A1 (en) 2013-11-28
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