Classifications

• • 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
  • A61K31/63—Compounds containing para-N-benzenesulfonyl-N-groups, e.g. sulfanilamide, p-nitrobenzenesulfonyl hydrazide
  • A61K31/635—Compounds containing para-N-benzenesulfonyl-N-groups, e.g. sulfanilamide, p-nitrobenzenesulfonyl hydrazide having a heterocyclic ring, e.g. sulfadiazine
• • 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
  • A61K31/436—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 containing a six-membered ring having oxygen as a ring hetero atom, e.g. rapamycin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
  • A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
  • A61P17/02—Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
  • A61P17/04—Antipruritics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
  • A61P17/06—Antipsoriatics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
  • A61P17/10—Anti-acne agents
• • 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
  • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
  • A61P31/04—Antibacterial agents

Definitions

• the invention relates to pharmaceutical compositions, for use in particular in the treatment of skin diseases. It concerns a pharmaceutical composition comprising a macrolide T-cell immunomodulator or immunosuppressant and an antibacterial.
• macrolide T-cell immunomodulators and immunosuppressants when used in combination with antibacterials, are highly compatible or may even act synergistically, such that effective beneficial, especially antibacterial activity is seen upon co-administration at dosages which may be kept high but are free of negative interaction.
• compositions of the invention thus concerns novel pharmaceutical compositions comprising a macrolide T-cell immunomodulator or immunosuppressant in association or combination with an antibacterial, hereinafter briefly named "the compositions of the invention".
• a macrolide T-cell immunomodulator or immunosuppressant is to be understood herein as being a T-cell immunomodulator or T-cell immunosuppressant which has a macrocyclic compound structure including a lactone or lactam moiety. While it preferably has at least some T-cell immunomodulating or immunosuppressant activity, it may also exhibit concomitantly or predominantly further pharmaceutical properties, such as anti-inflammatory activity.
• An antibacterial is to be understood herein as being an agent directed against a pathogenic bacterium, namely a prokaryotic microbe which is capable of causing disease in animals, especially humans.
• compositions of the invention may be adapted for systemic, e.g. oral or intravenous, or for topical use; preferably they are adapted for topical use. They are useful for the known indications of the particular active agents incorporated therein. They are particularly indicated for use in diseases involving bacteria, optionally in connection with an inflammatory component or inflammatory complications, such as atopic, contact and seborrhoeic dermatitis, eczema, psoriasis, acne, rosacea, post-peel, skin burning, itching or inflammatory bowel disease (IBD), or in situations of bacterial resistance.
• IBD inflammatory bowel disease
• a suitable macrolide T-cell immunomodulator or immunosuppressant is for example an FKBP12-binding calcineurin inhibitor or mitogen-activated kinase modulator or inhibitor, in particular an asco- or rapamycin. It preferably is an ascomycin, especially an anti-inflammatory ascomycin derivative. While the macrolide preferably has at least some calcineurin- or mitogen-activated kinase modulating or inhibiting activity, it may also exhibit concomitantly or predominantly further pharmaceutical properties, such as antiinflammatory activity. It preferably is a compound, e.g. an ascomycin, having rather long-acting activity relatively to other members of the same structural class, e.g. it is metabolically degraded slowly to inactive products.
• an asco- or rapamycin is to be understood as asco- or rapamycin as such, or a derivative thereof.
• An asco- or rapamycin derivative is to be understood as being an antagonist, agonist or analogue of the parent compound which retains the basic structure and modulates at least one of the biological, for example immunological properties of the parent compound.
• an "anti-inflammatory ascomycin derivative” is defined herein as an ascomycin derivative that exhibits pronounced anti-inflammatory activity in e.g. animal models of allergic contact dermatitis but has only low potency in suppressing systemic immune response, namely, which has a minimum effective dose (MED) of up to a concentration of about 0.04 % w/v in the murine model of allergic contact dermatitis upon topical administration- while its potency is at least 10 times lower than for tacrolimus (MED 14 mg/kg) in the rat model of allogeneic kidney transplantation upon oral administration (Meingassner, J.G. et al., Br. J. Dermatol. 137 [1997] 568-579; Stuetz, A. Seminars in Cutaneous Medicine and Surgery 20 [2001] 233-241). Such compounds are preferably lipophilic.
• Suitable ascomycins are e.g. as described in EP 184162, EP 315978, EP 323042, EP 423714, EP 427680, EP 465426, EP 474126, WO 91/13889, WO 91/19495, EP 484936, EP 523088, EP 532089, EP 569337, EP 626385, WO 93/5059 and WO 97/8182; in particular:
• Suitable anti-inflammatory ascomycin derivatives are e.g.: (32-desoxy-32-epi-Nl-tetrazolyl)ascomycin (ABT-281); 5,6-dehydroascomycin; ASD 732; and pimecrolimus.
• rapamycins are e.g. as described in USP 3'929'992, WO 94/9010 and USP 5'258'389, preferably sirolimus (rapamycin; Rapamune R ) and everolimus (RADOOl; Certican R ).
• a particularly preferred macrolide T-cell immunomodulator or immunosuppressant is pimecrolimus; it is in free form unless specified otherwise.
• a suitable antibacterial is for example:
• salicylic acid or a salicylic acid derivative such as: 4-aminosalicylic acid (Apacil R ) or 5-aminosalicylic acid (mesalamine; mesalazin; Asacol R ) or derivatives thereof, e.g. olsalazin (dimer of mesalamine; 5,5'-azabis[salicylic acid]) or sulfasalazin (5-[p-(2-pyridylsulfamoyl)phenylazo]salicylic acid; Azulfidine R );
• sulfonamide such as sulfacetamide or sulfadiazin
• an antibiotic such as: a) a penicillin, e.g. penicillin as such or cloxacillin; b) an amoxicillin; a tetracyclin, e.g. tetracyclin as such, doxycyclin, oxytetracyclin or minocyclin; or a cephalosporin, e.g.
• ceftazidime or a cephalosporin as described in WO 96/35692, WO 98/43981 and WO 99/48896; c) a quinolone such as ciprofloxacin, ofloxacin, norfloxacin, levofloxacin or lomefloxacin; d) a macrolide antibiotic such as erythromycin; e) clindamycin; f) chloramphenicol or azidamfenicol (Leukomycin N R ); or g) an aminoglycoside such as gentamycin, kanamycin, neomycin or tobramycin; h) a polyene such as natamycin; i) a pseudomonic acid such as mupirocin (pseudomonic acid A); j) cefuroxim; k) omiganan (MBI-594; MBI-226) as described in WO 98/07745; or 1) a ple
• polypeptide glycopeptide such as batracin, polymyxin, e.g. polymyxin B, or tyrothricin; preferably a salicylic acid derivative, a penicillin, a quinolone, a macrolide antibiotic or an aminoglycoside; especially sulfasalazin, penicillin, ciprofloxacin, ofloxacin, erythromycin or gentamycin; especially sulfasalazin, ciprofloxacin, ofloxacin, erythromycin or gentamycin; even more preferably ciprofloxacin or erythromycin. It is e.g.
• gram-positive bacteria such as Streptococcus and Staphylococcus
• gram-negative bacteria such as Pseudomonas, Escherichia, Enterobacter, Klebsiella, Moraxella and Enterococcus.
• compositions of the invention comprise a macrolide T-cell immunomodulator or immunosuppressant, preferably an anti-inflammatory ascomycin derivative as defined above, especially pimecrolimus, in combination or association with an antibacterial other than the following antibacterials singly or collectively in any number:
• compositions of the invention wherein one or both components possess some degree of inherent anti-inflammatory activity.
• compositions comprising an ascomycin in combination with an antibacterial, especially 33-epichloro-33-desoxyascomycin in combination with sulfasalazin, ciprofloxacin, ofloxacin, erythromycin or gentamycin.
• the inflammatory condition is e.g. atopic, contact or seborrhoeic dermatitis, eczema, psoriasis, acne, rosacea, post-peel, skin burning, itching, or IBD (inflammatory bowel disease). .
• Treatment as used herein includes prevention, namely prophylactic as well as curative treatment.
• Antibacterial activity is e.g. determined in vitro in the Agar Dilution Test according to National Committee for Clinical Laboratory Standards (NCCLS) 13 (1993) (No. 25), Document M7-A3, 3rd Edition, or Document Ml 1-A3 for anaerobic bacteria.
• Synergy is e.g. calculated as described in Berenbaum, Clin. Exp. Immunol. 28 (1977) 1, using an interaction term to correct for differences in mechanism between the two drugs, as described in Chou et al., Transpl. Proc. 26 (1994) 3043.
• the index of synergy is calculated as: dose of A + dose of B + (dose of A) x (dose of B " )
• synergistic ratio expressed in terms of the ratio by weight of the two compositions at synergistic amounts along the isobologram, especially at or near the point ofmaximum synergy, can then be used to determine formulations containing an optimally synergistic ratio of the two compounds.
• Activity may e.g. be determined in known assay models for testing the individual components of the compositions. Suitable animal assay models are e.g. as described in: Infect. Immunol. 44 (1992) 2636-2640: Antimicrob. Agents Chemother. 44 (2000) 255-260; JAC 42 (1998) 257-260; JAC 49 (2002) 455-465; and Infect. Immunol. 68 (2000) 2880-2887.
• the invention also provides products and methods for co-administration of a macrolide T-cell immunomodulator or immunosuppressant, e.g. pimecrolimus or 5,6-dehydroascomycin, and an antibacterial, e.g. ciprofloxacin or erythromycin, at high compatible or synergistically effective dosages, e.g.:
• a macrolide T-cell immunomodulator or immunosuppressant e.g. pimecrolimus or 5,6-dehydroascomycin
• an antibacterial e.g. ciprofloxacin or erythromycin
• a method of treatment or prevention of diseases involving a bacterial or suspected or anticipated bacterial infection or a method for immunomodulation or immunosuppression in a condition in which bacterial or suspected or anticipated bacterial colonization plays a role or in situations of bacterial resistance, in a subject suffering from or at risk for such infection or condition, comprising co-administering high compatible or synergistically effective amounts of a composition of the invention;
• kits of parts comprising a macrolide T-cell immunomodulator or immunosuppressant and an antibacterial in separate unit dosage forms, preferably wherein the unit dosage forms are suitable for administration of the component compounds in synergistically effective amounts, together with instruction for use, optionally with further means for facilitating compliance with the administration of the component compounds, e.g. a label or drawings;
• an antibacterial in the manufacture of a pharmaceutical kit which is to be used for facilitating co-administration with a macrolide T-cell immunomodulator or immunosuppressant; - a macrolide T-cell immunomodulator or immunosuppressant and an antibacterial as a combined pharmaceutical preparation for simultaneous, separate or sequential use, preferably in synergistically effective amounts, e.g. for the treatment or prevention of a bacterial infection, or for immunomodulation or immunosuppression in a condition in which bacterial or suspected or anticipated bacterial colonization plays a role;
• composition comprising a macrolide T-cell immunomodulator or immunosuppressant in combination or association with an antibacterial, e.g. in synergistically effective amounts, together with at least one pharmaceutically acceptable diluent or carrier, e.g. for use in treatment or prevention of a bacterial infection, or for immunomodulation or immunosuppression in a condition in which bacterial or suspected or anticipated bacterial colonization plays a role, or in a situation of bacterial resistance; and
• composition of the invention comprising mixing a macrolide T-cell immunomodulator or immunosuppressant and an antibacterial, in combination or association with at least one pharmaceutically acceptable diluent or carrier.
• “synergistically effective amounts” is meant an amount of macrolide T-cell immunomodulator or immunosuppressant and an amount of antibacterial which are individually below their respective effective dosages for a relevant indication, but which are pharmaceutically active on co-administration, e.g. in a synergistic ratio, for example as calculated above.
• “synergistically effective amounts” may mean an amount of macrolide T-cell immunomodulator or immunosuppressant and an amount of antibacterial which are individually equal to their respective effective dosages for a relevant indication, and which result in a more than additive effect.
• the molar amount of macrolide T-cell immunomodulator or immunosuppressant present is from roughly similar to, to significantly less than the amount of antibacterial, preferably half as much or less.
• Compatible or synergistic ratios of macrolide T-cell immunomodulator or immunosuppressant to antibacterial by weight are thus suitably from about 10:1 to about 1:50, preferably from about 5:1 to about 1:20, most preferably from about 1:1 to about 1:15, e.g. about 1:12.
• the compositions of the invention can be administered as a free combination, or the drugs can be formulated into a fixed combination, which greatly enhances the convenience for the patient.
• Absolute dosages of the compounds will vary depending on a number of factors, e.g. the individual, the route of administration, the desired duration, the rate of release of the active agent and the nature and severity of the condition to be treated.
• the amount of active agents required and the release rate thereof may be determined on the basis of known in vitro and in vivo techniques, determining how long a particular active agent concentration in the blood plasma remains at an acceptable level for a therapeutic effect.
• an initial dosage of about 2-3 times the maintenance dosage is suitably administered, followed by a daily dosage of about 2-3 times the maintenance dosage for a period of from one to two weeks, and subsequently the dose is gradually tapered down at a rate of about 5 % per week to reach the maintenance dosage.
• compatible or synergistically effective amounts of 33-epichloro-33-desoxyascomycin and antibacterial such as ciprofloxacin on oral administration for use in prevention and treatment of atopic dermatitis or acne or bacterial diseases in larger animals, e.g.
• 33-epichloro-33-desoxy-ascomycin of up to about 2 mg/kg/day, e.g. from about 0.01 mg/kg/day to about 2 mg/kg/day, preferably about 0.5 mg/kg/day, in combination or co-administration with amounts of antibacterial such as ciprofloxacin of up to about 50 mg/kg/day, e.g. from about 0.25 mg/kg/day to about 50 mg/kg/day, preferably about 2.5 mg/kg/day, in a synergistic ratio, as described.
• Suitable unit dosage forms for oral co-administration of these compounds thus may contain on the order of from about 0.5 mg to about 100 mg, preferably about 3 mg to about 30 mg of 33-epichloro-33-desoxyascomycin, and from about 0.1 mg to about 10 mg, preferably about 1 mg to about 3 mg of antibacterial.
• the daily dosage for oral administration is preferably taken in a single dose, but may be spread out over two, three or four dosages per day. For i.v. administration, the effective dosage is lower than that required for oral administration, e.g. about one fifth the oral dosage.
• co-administration administration of the components of the compositions of the invention together or at substantially the same time, e.g. within fifteen minutes or less, either in the same vehicle or in separate vehicles, so that upon oral administration, for example, both compounds are present simultaneously in the gastrointestinal tract.
• the compounds are administered as a fixed combination.
• Preferred such further pharmaceutically active components for combination or association are retinoids.
• a suitable retinoid is for example:
• retinal retinal (retinaldehyde; retinene; vitamin A aldehyde);
• vitamin A acid vitamin A acid
• tretinoin retinoic acid
• vitamin A Retinol R
• Zorac R - tazarotene
• Tazorac R synthetic acetylenic retinoid
• etretinate isotretinoin or tazarotene; especially isotretinoin or tazarotene.
• compositions of the invention include compositions suitable for administration by any conventional route, in particular compositions suitable for administration either enterally, for example, orally, e.g. in the form of solutions for drinking, tablets or capsules, or parenterally, e.g. in the form of injectable solutions or suspensions; or topically, e.g. for the treatment of inflammatory or bacterial conditions of the skin or mucosae, e.g. in the form of a dermal cream, ointment, ear drops, mousse, shampoo, solution, lotion, gel, emulgel or like preparation, e.g.
• each component in a concentration of from about 0.1 % to about 4 % by weight of each component, especially in combination or association with penetration enhancing agents, as well as for application to the eye, e.g. in the form of an ocular cream, gel or eye-drop preparation, for treatment of inflammatory or bacterial or suspected or anticipated bacterial conditions of the lungs and airways, e.g. in the form of inhalable compositions, and for mucosal application, e.g. in the form of vaginal tablets.
• compositions of the invention are suitably emulsions, microemulsions, emulsion preconcentrates or microemulsion preconcentrates, or solid dispersions, especially water-in-oil microemulsion preconcentrates or oil-in-water microemulsions, comprising the macrolide T-cell immunomodulator or immunosuppressant and the antibacterial in a synergistic ratio.
• compositions of the invention can be prepared in conventional manner, e.g. by mixing a macrolide T-cell immunomodulator or immunosuppressant and an antibacterial, in combination or association with at least one pharmaceutically acceptable diluent or carrier.
• the active agent components may be in free form or pharmaceutically acceptable salt form as appropriate.
• Example 1 Cream
• the preparation follows the conventional manufacturing procedures for an emulsion.
• the drug substances are added to the heated homogeneous oily phase which contains triglycerides medium chain, oleyl alcohol, sodium cetylstearyl sulfate, cetyl alcohol , stearyl alcohol and glyceryl monostearate.
• the water phase containing benzyl alcohol, propylene glycol, citric acid and sodium hydroxide is heated at the same temperature as the oily phase.
• the oily phase is added to the water phase and homogeneisation is performed.
• the resultant cream is cooled to room temperature.

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• 2003
  • 2003-04-04 GB GBGB0307862.3A patent/GB0307862D0/en not_active Ceased
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