WO1992001475A1 - Compositions a base de principes actifs de medicaments hydrophobes solubilisables dans un solvant aqueux - Google Patents
Compositions a base de principes actifs de medicaments hydrophobes solubilisables dans un solvant aqueux Download PDFInfo
- Publication number
- WO1992001475A1 WO1992001475A1 PCT/FR1991/000595 FR9100595W WO9201475A1 WO 1992001475 A1 WO1992001475 A1 WO 1992001475A1 FR 9100595 W FR9100595 W FR 9100595W WO 9201475 A1 WO9201475 A1 WO 9201475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- sulfate
- type
- lipophilic
- composition according
- Prior art date
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Classifications
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7004—Monosaccharides having only carbon, hydrogen and oxygen atoms
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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
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
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- 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
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- 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
- A61K39/39—Medicinal preparations containing antigens or antibodies characterised by the immunostimulating additives, e.g. chemical adjuvants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
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- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/04—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/04—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
- C07H13/06—Fatty acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
- C07H15/06—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical being a hydroxyalkyl group esterified by a fatty acid
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- 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
- A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
- A61K2039/55511—Organic adjuvants
- A61K2039/5555—Muramyl dipeptides
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- 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
- A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
- A61K2039/55511—Organic adjuvants
- A61K2039/55572—Lipopolysaccharides; Lipid A; Monophosphoryl lipid A
Definitions
- the invention relates to compositions comprising active principles of hydrophobic drugs, which can nevertheless be dissolved in an aqueous solvent.
- the invention also relates to a process for obtaining such compositions, and to their uses in particular as pharmaceutical compositions.
- This insolubility in an aqueous solvent is particularly disadvantageous for products intended to be administered in an aqueous physiological solution of the type of those usually used for injectable preparations. It is also applicable to products intended to be administered orally and which have reduced efficacy and bioavailability.
- these products are immunomodulators capable of increasing the specific immune response (adjuvanted vaccine), or reinforcing non-specific resistance (anti-infectious agent).
- adjuvant vaccine adjuvanted vaccine
- anti-infectious agent adjuvanted anti-infectious agent
- Very hydrophobic in nature they give aqueous suspensions which are difficult to disperse in a completely satisfactory manner (in particular with regard to the level of dispersion compatible with the possibility of injecting them into a patient), by using the various means of dissolution or aqueous dispersion. , based on known techniques, in particular mechanical treatments, or even the use of organic solvents or surfactants.
- the present invention specifically aims to provide means for the solubilization or homogeneous dispersion in an aqueous solvent of hydrophobic products, such as lipophilic uramyl-peptides, or other active ingredients of lipophilic drugs, carriers of hydrocarbon chains. These sometimes themselves contribute to the low solubility of these products in water, or even to the instability of their aqueous dispersions.
- hydrophobic products such as lipophilic uramyl-peptides, or other active ingredients of lipophilic drugs, carriers of hydrocarbon chains.
- the invention relates generally to a composition capable of being dissolved or dispersed in a homogeneous and stable manner in a pharmaceutically acceptable aqueous solution, characterized by the combination: on the one hand, of a lipophilic active principle of drug or "pharmacologically active substance", comprising at least one hydrocarbon group itself comprising at least 3 carbon atoms, and - on the other hand, of a solubilizing osidic derivative, itself water-soluble, pharmaceutically acceptable, itself carrying a hydrocarbon group having at least 3 carbon atoms and comprising one or more hydroxyl functions, at least one of which is substituted by a phosphate or sulfate group, this osidic derivative being in a sufficient proportion relative to the lipophilic active principle for promote the solubilization or dispersion of the entire composition in an aqueous solution.
- a lipophilic active principle of drug or "pharmacologically active substance” comprising at least one hydrocarbon group itself comprising at least 3 carbon atoms
- the dissolution or dispersion of the two above-defined constituents of the composition apparently involves the constitution of Van der Walls type bonds between their respective hydrocarbon chains. Often the connections of Van der Walls will be all the more effective as they are numerous and therefore, as the hydrocarbon chains will be longer. It goes without saying that these chain lengths must not, especially with regard to the water-soluble sugar derivative, exceed those which would have the effect of excessively increasing its lipophilicity.
- lipophilic must be understood as meaning that the substance concerned has in a two-phase system (aqueous solution - organic solution) a partition coefficient favorable to the organic phase; in other words, the lipophilic substance is more soluble in the organic solution than in the aqueous solution.
- the lipophilic substance can even be practically insoluble in water.
- water-soluble has the opposite meaning.
- the partition coefficient of the water-soluble substance in the above two-phase system is in favor of the aqueous phase.
- solubilizing power of the osidic derivative is attributable to the simultaneous presence in the structure of this osidic derivative of said (or said) group (s) of hypocarbon (s) and of (or) group (s) sulfate or phosphate.
- Hydrocarbon groups allow the establishment of Van der Waals type connections with the hydrocarbon chain (s) of the active principle and the sulfate or phosphate group (s) allows the solubilization of the non-covalent complex thus formed.
- the lengths of the hydrocarbon chains carried respectively by the lipophilic active substance on the one hand, the water-soluble solubilizing derivative, on the other hand, are chosen so as to favor the establishment of the above-mentioned Van der Waals type bonds.
- the pharmacologically active substance can consist of any substance meeting the criteria indicated above.
- the lipophilicity of the pharmacologically active substance can result either from the length of the hydrocarbon chains which it carries, or - and in particular when these hydrocarbon chains are short - from the number of these chains, or even , of course, the combination of the lengths and the number of these hydrocarbon chains.
- the active substance may comprise any derivative of muramyl-peptide containing a hydrocarbon chain tending to reduce the water solubility of ⁇ corresponding muramyl peptide therefore • that it is devoid of said hydrocarbon chain.
- a preferred category of such so-called "lipophilic" muramyl-peptides is further illustrated below.
- Another category of preferred compounds is constituted by saccharide derivatives or analogues, in particular mono- or di-saccharide lipid A. Certain preferred examples of these analogs are mentioned below.
- Other pharmaceutical substances can also be dissolved using the techniques of the invention.
- cyclic peptides of the cyclosporin family for example cyclosporin A (JF Borel et al, Agents Actions - 6 (1976) 1 + 68; is, Immumnology 32 (1977) 1017 ; PJ Tudchka et al., Blood 61 (1983) 318) but also cyclic pseudopeptides, for example valinomycin or polyene macrolides, for example lucensomycin, and the fat-soluble vitamins, in particular vitamins A, D, E, K,
- any pharmacologically active substance of the polyene, mono or polysaccharide, polypeptide, cyclic or non-cyclic, or even glycopeptide type, which carries at least one hydrocarbon chain as defined above, can be forming the lipophilic constituent of the compositions according to the invention.
- the invention applies in particular to the solubilization of pharmacologically active substances, the solubility of which would prove to be insufficient for medical application, whatever the route of administration envisaged, since it comprises a hydrocarbon chain which can be associated, via Van de Waals type bonds, with a corresponding hydrocarbon chain carried by an osidic derivative, as defined above.
- osidic As for the water-soluble osidic derivative, it should be noted that the expression "osidic” as used above, and in what follows, relates generally to any product comprising in its structure one (or more) residue ( saccharide (s). In general, any osidic derivative as defined above can be used in the compositions of the invention, provided that this derivative does not lead to a modification of the pharmacological properties of the above-mentioned active substance, such as this the latter would become inactive or toxic.
- hydrocarbon chains carried either by the pharmacologically active substance or by the oside derivative are advantageously themselves lipophilic groups. They notably include:
- branched hydrocarbon structure of 5 to 50, in particular of 10 to 50 carbon atoms, comprising where appropriate, one or more ether, ester, thioether, thioester, or amide bond (s), this branched structure being designated hereinafter by "type B" lipophilic group.
- a category of preferred sugar derivatives for the production of compositions in accordance with the invention are those which correspond to the following formula (I):
- R represents a hydrocarbon group comprising at least 3 carbon atoms, in particular a "type A” or “type B” lipophilic group,
- - represents H, or OH, or an acetamido, sulfate, sulfamido, phosphate, phosphamido group,
- R 3 and R 4 identical or different, represent either H, or OH, or OCH 3 , or else a sulfate or phosphate group,
- R represents either H, OH, or 0CH 3 , or else a dare or osamine residue whose anomeric carbon in position 1 (Cl) is engaged in a glycosidic bond, the positions C2, C3 and C4 being respectively substituted by groups R ' 2 , R' 3 , and R ' 4 respectively having the meanings given above for R 2 , R 3 , and R 4 , and the position C6 by a group R' having the meaning given above for
- R at least one of the groups R 2 , R'g / R 3 , R ' 3 , R 4 or R' representing a sulfate or phosphate residue.
- the lipophilic groups must not be of such a length or in such a number that the whole of the osidic derivative would tend to become insoluble.
- Preferred sugar derivatives are chosen from the following compounds:
- compositions in accordance with the invention will be even more - and in a non-limiting manner - illustrated below.
- the two hydrocarbon groups where appropriate, lipophilic by themselves, ensuring respectively a non-covalent association between the pharmacologically active substance and the oside derivative, are linear hydrocarbon structures.
- these groups are such that one of them is composed of a linear hydrocarbon structure, while the other consists of a branched hydrocarbon structure.
- the branched hydrocarbon structure is then preferably chosen from those consisting of a branched hydrocarbon chain, the branches of which arise on two adjacent carbon atoms, or at most separated by one carbon atom.
- the linear hydrocarbon structure must then, in order to associate with the branched hydrocarbon chain, have a sufficient length allowing the establishment of non-covalent bonds, in particular of the Van der Walls type, with at least one of the ramifications of the structure. branched hydrocarbon.
- association of the pharmacologically active substance and the osidic derivative is effected by means of their respective hydrocarbon or even lipophilic groups, as soon as non-covalent bonds are established which are sufficiently strong to allow the linear hydrocarbon structure, to be maintained in a so-called “sandwich" position between the two branches of the branched hydrocarbon structure.
- the linear hydrocarbon structure has a number of carbon atoms at most equal to the number of carbon atoms of the branches of the branched hydrocarbon structure.
- a more particular subject of the invention is any composition capable of being dissolved or homogeneously dispersed in an aqueous solvent, characterized in that it comprises:
- any pharmacologically active substance in particular of a nature insoluble in an aqueous solvent, and onto which is capable of being grafted at least one lipophilic group "type A” or “type B” mentioned above or more generally a shorter hydrocarbon chain, can be used as a pharmacologically active substance included in the compositions of the invention.
- - R represents H or CH 3 ;
- - R 6. represents a group -NH 2 , -OH or a group -OW
- W 1 being a hydrocarbon group having from 1 to 10 carbon atoms
- X represents an aminoacyl residue from the group comprising alanyl, valyl, isoleucyl, norleucyl, leucyl, threonyl, prolyl, glutaminyl, asparaginyl, ethionyl, tryptophanyl, phenylalanyl, tyrosyl, glycyl;
- Y represents either OH or NH 2 or a group -OW 2 , W 2 being a hydrocarbon group of 1 to 4 carbon atoms, or else a lipophilic group of type A or of type B,
- Z represents either H or a "type A” or “type B” lipophilic group, it being understood however that at least one of the two groups Y and Z is always constituted by a "type A” lipophilic group or "type B";
- n 2 identical or different, represent zero or 1,
- - A, and B are either identical or different groups respectively comprising from 1 to 3 aminoacyl residues, themselves identical or different from each other, or else a group -NH- (CH 2 ) p -CO- with values of p between 2 and 10.
- composition of the invention comprises compounds of the above-mentioned formula (II), in which
- composition of the invention comprises compounds of formula (II) mentioned above, in which: - n, and n represent zero,
- - R_ represents -OH, or -NH or On (CH 2 ) H with x ⁇ between 1 and 6, with a preference for x 1 ⁇ 4, -X is L or D-alanyl, L-threonyl, L-valyle ,
- the biologically active substance capable of being combined with the derivatives of osides, defined above, to form soluble or dispersible compositions in accordance with the invention may also belong to other categories of products. These are, for example immunomodulatory substances, selected from:
- constituents of bacterial origin inter alia constituents of the bacterial wall: derivatives of trehalose, in particular of the type of TDM (products of the class of trehalose dimycolates), and lipolysaccharides (LPS) which comprise on the one hand lipid chains and, on the other hand, at least one phosphate or sulfate group:
- lipid A derivatives or analogs mono- or di-saccharide, mono- or diphosphorylated, carrying branched chains or else linear hydrocarbon chains, which may themselves be substituted or not, by linear hydrocarbon chains with means of ester, thioester, ether or thioether bonds, products which, obtained by synthesis or hemisynthesis, have an attenuated toxicity compared to natural Lipid A.
- a first family is that of analogs or disaccharide derivatives of Lipid A, such as MPL (monophophoryl Lipid A, produced by Ribi immunochem, Research Inc.). These are very hydrophobic structures dispersible in water in a homogeneous manner, in the presence of the above-mentioned derivatives of osides.
- MPL monophophoryl Lipid A, produced by Ribi immunochem, Research Inc.
- R 4 and R' ⁇ represent H or P0 4 , with at least R 4 or R'.j being a group P0 4
- a second family is that of the analogs or monosaccharide derivatives of Lipid A, in particular MRL 953 (product described in PL stuetz et al, in Cellular and molecular aspects of endotoxin reaction A. Nowotny, JJ Spitzec, EJ Zlegler editors. (Elsevier Science Publishers ) 1990, pages 129-144).
- R. represents H or P0 3
- R represents P0 3 if R is not P0 3 , or H or one of the meanings given to R 2 and R 3 .
- Muramylpeptides For the same hydrophobicity reasons as already mentioned with regard to certain Muramylpeptides, their galenical formulation is often difficult. However, like lipophilic Muramylpeptides, they can lead to homogeneous aqueous solutions or dispersions in the presence of the above-mentioned oside derivative.
- the present invention therefore relates to the use of the compositions according to the invention either alone for stimulating the general defenses of the organism, or with an antigen.
- the oside derivative and the pharmacologically active substance are, in the combination, advantageously in a weight ratio of 0.25 to 5, in particular from 0.5 to 1.5.
- the subject of the invention is also the osidic derivatives of formula (I) themselves, since they comprise at least one sulphate group, as well as their process for obtaining according to methods which are conventionally used in synthetic chemistry of mono and oligosaccharides.
- this methodology proceeds in successive steps starting from the ose or the oligosaccharide to be chemically modified, in order to arrive at the desired derivative, specifically substituted in the desired position.
- the functions in positions CC 2 , C 3 , C 4 and C 6 of a ose and those corresponding to an oligosaccharide are temporarily protected by protective groups (such as benzyl, benzylidene, acetyl ...) introduced specifically and sequentially on the positions which will not ultimately be the subject of the envisaged chemical modification, taking advantage of the differences in reactivity of said functions.
- the introduction of the lipophilic groups “type A” or “type B” mentioned above or, moreover, of shorter hydrocarbon chains is advantageously carried out in the following manner: the (or the) primary unprotected hydroxyl functions, can react either in the form substituted by a tosyl group with a fatty acid salt, in the presence of crown ether, or in the free form with a fatty acid chloride, or with the carboxylic function of a fatty acid in the presence of 'a coupling reagent.
- the derivative obtained is released (deprotection step) from all of its protective groups to result in the desired mono or oligosaccharide derivative.
- the introduction of the phosphate groups (or groups) is carried out prior to the abovementioned deprotection step, by the so-called phosphite triester method described in Perich, JW et al, Tetrahedron Lett. , (1988), 29., 2369.
- the introduction of the sulphate group (s) is carried out after the deprotection step mentioned above, in particular by using the trimethylamine-sulfuric anhydride complex according to the method notably described in Ichikawa Y. et al, Carbohydrate Research, 172, (1988), 37-64.
- the invention also relates to pharmaceutical compositions comprising a composition of the type described above, or a mixture of these compositions, dispersed in a physiologically acceptable aqueous solvent.
- compositions of the invention can be lyophilized from their aqueous solution or dispersion, and are then in powder form.
- compositions in the form of dry powder are easily dissolved or dispersed again in an appropriate volume of aqueous solvent.
- the invention also relates to a method for modifying the solubility properties of a pharmacologically active substance of type (1) described above, this method consisting in the association of substance (1) with an osidic derivative of type (2). ) as described above, under conditions such that when this combination of (1) and (2) is placed in water, a solution (or a dispersion) is obtained which can be used in particular as an injectable preparation, when the the above-mentioned water is sterile.
- the solubilization of the phar ⁇ macologically active substance (1) is such that one obtains a fluid characterized by a weak opalescence (measurable by nephelometry), the latter being even often absent.
- This fluid behaves as a solution and is capable of being administered into the body as a solution for injection.
- the dispersion of a substance in an aqueous medium corresponds to a stable and homogeneous distribution of the molecules of this substance in the mass of this medium, resulting from total or partial solvation by water molecules, and not to a dispersion of this sedimentable substance over time. In particular, no change in physical state is observed in the dispersion within 24 hours of its preparation.
- compositions described above comprising:
- the process for obtaining the compositions of the invention is carried out by adding, under the conditions described above, the (or) derivative (s) of sugar to a specified quantity of one (or more) pharmacologically active substance (s).
- the chloroform solutions (A) and (B) are combined. 5 to 10 ml of distilled water are added and a stream of nitrogen is bubbled from the bottom of the tube containing the two phases, until complete elimination of the chloroform.
- the aqueous dispersion is lyophilized and the powder obtained is taken up in an aqueous solvent at the desired concentration. A dispersion of the same appearance and quality is obtained as previously.
- the dispersion obtained is mixed with 0.5 ml of an isotonic solution of ovalbumin at 20 mg / ml. 1 ml of mineral oil (Freund's Incomplete Adjuvant, AIF) is added and the emulsion is carried out.
- This preparation therefore contains per ml, 0.5 mg of adjuvant, 0.5 mg of P., and 5 mg of ovalbumin b) Methodology
- the control batches receive a) water / mineral oil emulsion containing the antigen alone, b) the same emulsion containing the adjuvant molecules alone (MDP-GDP).
- the experimental batches receive the emulsions containing the P sugar derivative.
- the injections are made subcutaneously in the rear plantar pads of Hartley male guinea pigs weighing 350 g.
- the animals receive intradermally 0.1 ml of physiological solution alone or containing 0.1 ml of ovalbumin.
- the induration diameter is measured, which is the sign of the establishment of a state of delayed hypersensitivity.
- the animals are sacrificed for cardiac puncture and the sera collected.
- the titration of the circulating antibodies is carried out by the Elisa method according to the conventional methods, in particular those described in: F.AUDIBERT, L. CHEDID, P. LEFRANCIER and J. CHOAY, Immunol. (1976), (21), 143; and M. JOLIVET, F. AUDIBERT, H. GRAS-MASSE, A. TARTAR, D. SCHLESSINGER, R. WITZ and L. CHEDID, Infect. Immunol. (1987), (55), 1498.
- the figures represent the maximum dilution of the serum allowing an optical density equal to that obtained by using a normal serum diluted 50 times.
- MDP-GDP is a strong adjuvant of the cell-mediated response and the humoral response and that the addition of P., did not modify their activity.
- Swiss mice received P MDP-GDP, or MDP-GDP + P 1 by vein 24 hours before infection with 1 x 10 4 Klebsiella pneumoniae.
- the solution of F. is added to the MDP-GDP to obtain a preparation containing an equivalent quantity of 2 products (weight / weight).
- TNF tumor necrosis factor
- LPS bacterial lipopolysaccharide
- Muramyl peptides stimulate the production of TNF in vitro, but they are clearly less effective than LPS. In vivo, the levels of serum TNF produced after administration of muramyl peptides are below or at the limit of detection possibilities.
- MDP-GDP and the other derivatives, which have an anti-infectious action, have the property of increasing the response to the LPS injected after, causing a considerable increase in the level of serum TNF.
- Table II shows the results of an experiment of this type. We see that the pretreatment is more effective 6 hours before the LPS, in particular in the case of the MDP-GPD + P- ,, association but that 16 hours before, the injection of MDP-GDP still has a potentiating effect. of the answer.
- the blood monocytes are isolated and incubated for 24 hours with different doses of product.
- the supernatants are removed to measure TNF and IL-6, cytokines which are produced by activated monocytes.
- Table III shows that the production of TNF is significant only with 10 ⁇ g / ml of MDP-GDP and that the product solubilized with the compound - ⁇ is of slightly higher activity.
- the assay of IL-6 gives clearer results and also shows a comparable stimulation of monocytes between MDP-GDP and MDP-GDP solubilized in association with P ⁇ d - Action on human polynuclear cells
- Muramyl-peptides have a direct action on polynuclear cells, which is demonstrated in particular by phagocytosis and the destruction of Candida albicans.
- the estimation of this action is made by the ability to incorporate glucose treated by the fungus cells that have remained viable.
- Polynuclear cells (lx 10 6 / ⁇ l) are incubated with the stimulants for 30 minutes and distributed in the microplate wells with a suspension of C. albicans at 1 x 10 4 / m. After 18 hours, the culture medium is eliminated and the incorporation of 3 HD-glucose by the Candida cells is measured after an incubation of 3 hours. 4) Influence of saccharide derivative of P 1 "pyrogenic effect of MDP-GDP.
- the pyrogenicity tests were carried out on New Zealand rabbits weighing 3 to 4 kg kept in a containment box. The animals received a dose of product in a volume of 0.5 ml / kg intravenously at time zero and their temperature recorded for 5 hours continuously.
- the recorded temperature differences were:. for group I: 0.15, 0.25; 0.25 ( ⁇ C), an average of: 0.22 ⁇ C ⁇ 0.06; . for group II: 0.40, 0.15, 0.30 ( ⁇ C), ie an average of: 0.28 "C ⁇ 0.12.
- the minimum pyrogenic dose of MDP-GDP previously determined is equal to: 2 ⁇ g / kg.
- a dose of 10 ⁇ g / kg was chosen, which gives an approximate temperature increase of 1 ° C.
- group I 10 ⁇ g / kg of MDP-GDP
- group II 10 ⁇ g / kg of MDP-GDP + 10 ⁇ g / kg of P- ,.
- the recorded temperature differences are:. for group I: 0.70, 0.50, 0.85 (° C), an average of: 0.68 ⁇ C ⁇ 0.18; . for group II: 1.15, 0.90, 0.65 ( ⁇ C), or an average of: 0.90 ° C ⁇ 0.25.
- the dispersed compositions obtained have pharmacological properties which are of the same nature as those reported above for the dispersions of the composition MDP-GDP-P- ,.
- the chloroform solutions (A) and (B) are combined. 2 to 3 ml of distilled water are added and a stream of nitrogen is bubbled from the bottom of the tube containing the two phases, until complete elimination of the chloroform. A homogeneous and stable, slightly opalescent aqueous dispersion is obtained.
- the aqueous dispersion is lyophilized and the powder obtained is taken up in an aqueous solvent at the desired concentration. A dispersion of the same appearance and quality is obtained as previously.
- MPL is dissolved according to the procedure recommended by Ribi immunochem. Research, Inc .. From a solution in the chloroform: methanol mixture (4: 1) of 20 mg of MPL, a stock solution containing 4 mg / ml of MPL is thus prepared, then by addition of physiological serum free of calcium, 2 mg / ml solution.
- Compound P 1 does not alter the protective effect of MPL against infection by K. pneumoniae.
- the chloroform solutions (A) and (B) are combined. 2 to 3 ml of water are added and a stream of nitrogen is bubbled from the bottom of the tube containing the two phases, until the chloroform is completely eliminated. A homogeneous and stable aqueous dispersion is obtained, very slightly opalescent.
- the aqueous dispersion is lyophilized and the powder obtained is taken up in an aqueous solvent at desired concentration.
- a dispersion of the same appearance and quality is obtained as above, b) Biological properties of the aqueous dispersion of the
- mice received the day before the intravenous injection:
- Figures l (a) and l (b) show that the protective effect of MRL 953 is comparable, regardless of the dispersion method used.
- Figures l (a) and l (b) indeed include curves representative of the variations in the percentages of surviving mice (% on the ordinate axes) as a function of time (T in days on the abscissa axes) when the substances studied (LPS and MPL953) were administered at the doses indicated on the right of the figures, in the form dispersed in: - a glucose solution (figure l (a)) - a solution of the derivative of oside P., (figure l (b))
- the invention also relates to the application of the compositions according to the invention to the modulation of biological properties of third-party compounds, administered concomitantly or not.
- Table VI presents the results obtained. As a result, the use of compound P does not decrease, but on the contrary increases the antiviral activity proper to MDP (Thr) 1 -GDP, and the effect of potentiating the antiviral activity of interferon by this. lipophilic muramylpeptide. TABLE VI
- TNF activity is evaluated by the cytotoxicity test being measured by the number of viable cells.
- One unit of TNF represents the concentration which produces 50% cytotoxicity under the given conditions.
- Aqueous suspensions of lipophilic MDP stimulate the TNF response to stimulation by LPS or by the aqueous dispersion of MRL 953 in the presence of P ,. This effect is slightly accentuated with the aqueous dispersions of these lipophilic MDPs in the presence of the compound P- ,.
- MDP-GDP suspended in 0.2 ml of physiological saline, alone, or in a glucose solution in the presence of pluronic acid (F 68, SERVA), or else in dispersion in 0.2 ml of physiological saline in presence of compound P 1f is administered intravenously with LPS (S. enteritidis) to Swiss adrenalecto isis mice.
- LPS S. enteritidis
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP91512552A JPH05508653A (ja) | 1990-07-18 | 1991-07-18 | 水性溶媒に可溶化し得る疎水性医薬の有効成分をベースとする組成物、その製法、及び特に医薬分野におけるその使用 |
CA002087536A CA2087536A1 (fr) | 1990-07-18 | 1991-07-18 | Compositions a base de principes actifs de medicaments hydrophobes solubilisables dans un solvant aqueux |
CS924074A CZ407492A3 (cs) | 1990-07-18 | 1992-12-31 | Farmaceutický prostředek |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9009172A FR2664813B1 (fr) | 1990-07-18 | 1990-07-18 | Compositions a base de substances hydrophobes, solubilisables dans un solvant aqueux, leur procede d'obtention, et leurs utilisations notamment dans le domaine pharmaceutique. |
FR90/09172 | 1990-07-18 | ||
FR91/01497 | 1991-02-08 | ||
FR9101497A FR2672496B3 (fr) | 1990-07-18 | 1991-02-08 | Compositions a base de substances hydrophobes, solubilisables dans un solvant aqueux, leur procede d'obtention, et leurs utilisations notamment dans le domaine pharmaceutique. |
Publications (1)
Publication Number | Publication Date |
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WO1992001475A1 true WO1992001475A1 (fr) | 1992-02-06 |
Family
ID=26228157
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Application Number | Title | Priority Date | Filing Date |
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PCT/FR1991/000595 WO1992001475A1 (fr) | 1990-07-18 | 1991-07-18 | Compositions a base de principes actifs de medicaments hydrophobes solubilisables dans un solvant aqueux |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0539457A1 (fr) |
JP (1) | JPH05508653A (fr) |
AU (1) | AU8282991A (fr) |
CA (1) | CA2087536A1 (fr) |
FR (1) | FR2672496B3 (fr) |
WO (1) | WO1992001475A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2692149A1 (fr) * | 1992-06-12 | 1993-12-17 | Vacsyn France Sa | Composition adjuvante de l'immunité humorale et à médiation cellulaire n'induisant pas de réponse vis-à-vis de déterminants auto-antigéniques. |
FR2706772A1 (en) * | 1993-06-22 | 1994-12-30 | Vacsyn Sa | Prevention and treatment of septic syndrome with an immunosuppressant, in particular cyclosporin. |
WO1996020222A1 (fr) * | 1994-12-27 | 1996-07-04 | Dimminaco Ag/Sa/Ltd. | Nouveaux derives de cyclodextrines et leurs procedes de preparation |
WO2000039137A3 (fr) * | 1998-12-28 | 2002-10-24 | Univ Iowa Res Found | Synthese regiospecifique de tensioactifs a base de glucose |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997011092A1 (fr) * | 1994-04-07 | 1997-03-27 | Nippon Shinyaku Co., Ltd. | Derives de phosphates de cyclosporine et composition medicinale |
US6491919B2 (en) * | 1997-04-01 | 2002-12-10 | Corixa Corporation | Aqueous immunologic adjuvant compostions of monophosphoryl lipid A |
WO2000003744A2 (fr) * | 1998-07-14 | 2000-01-27 | American Cyanamid Company | Compositions d'adjuvants et de vaccins contenant un lipide monophosphoryle a |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE655414A (fr) * | 1963-11-08 | 1965-03-01 | ||
US3808200A (en) * | 1969-07-29 | 1974-04-30 | Agriculture | Hexitol,glucose and surcose esters of alpha-sulfo fatty acids |
EP0165123A2 (fr) * | 1984-05-11 | 1985-12-18 | ANVAR Agence Nationale de Valorisation de la Recherche | Dérivés lipophiles de muramylpeptides ayant des propriétés d'activation des macrophages, compositions les contenant et procédé pour les obtenir |
US4612304A (en) * | 1985-06-11 | 1986-09-16 | Ss Pharmaceutical Co., Ltd. | Antitumor formulation containing lipopolysaccharide with trehalose derivatives |
EP0228612A2 (fr) * | 1985-12-16 | 1987-07-15 | Ss Pharmaceutical Co., Ltd. | Dérivé de l'alpha, alpha-tréhalose ainsi que procédé de préparation dudit composé |
EP0135376B1 (fr) * | 1983-08-22 | 1990-11-07 | Syntex (U.S.A.) Inc. | Adjuvants à base d'un polymère séquencé polyoxypropylène-polyoxyéthylène et leur application dans des vaccins |
-
1991
- 1991-02-08 FR FR9101497A patent/FR2672496B3/fr not_active Expired - Lifetime
- 1991-07-18 JP JP91512552A patent/JPH05508653A/ja active Pending
- 1991-07-18 WO PCT/FR1991/000595 patent/WO1992001475A1/fr not_active Application Discontinuation
- 1991-07-18 CA CA002087536A patent/CA2087536A1/fr not_active Abandoned
- 1991-07-18 EP EP91913281A patent/EP0539457A1/fr not_active Withdrawn
- 1991-07-18 AU AU82829/91A patent/AU8282991A/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE655414A (fr) * | 1963-11-08 | 1965-03-01 | ||
US3808200A (en) * | 1969-07-29 | 1974-04-30 | Agriculture | Hexitol,glucose and surcose esters of alpha-sulfo fatty acids |
EP0135376B1 (fr) * | 1983-08-22 | 1990-11-07 | Syntex (U.S.A.) Inc. | Adjuvants à base d'un polymère séquencé polyoxypropylène-polyoxyéthylène et leur application dans des vaccins |
EP0165123A2 (fr) * | 1984-05-11 | 1985-12-18 | ANVAR Agence Nationale de Valorisation de la Recherche | Dérivés lipophiles de muramylpeptides ayant des propriétés d'activation des macrophages, compositions les contenant et procédé pour les obtenir |
US4612304A (en) * | 1985-06-11 | 1986-09-16 | Ss Pharmaceutical Co., Ltd. | Antitumor formulation containing lipopolysaccharide with trehalose derivatives |
EP0228612A2 (fr) * | 1985-12-16 | 1987-07-15 | Ss Pharmaceutical Co., Ltd. | Dérivé de l'alpha, alpha-tréhalose ainsi que procédé de préparation dudit composé |
Non-Patent Citations (1)
Title |
---|
Chemical Abstracts, volume 112, no. 6, 5 février 1990, (Columbus, Ohio, US), L. Hahn et al.: "Solid surfactant solutions of active ingredients in sugar esters", voir page 435, abrégé 42458s, & Pharm. Res. 1989, 6(11), 958-60 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2692149A1 (fr) * | 1992-06-12 | 1993-12-17 | Vacsyn France Sa | Composition adjuvante de l'immunité humorale et à médiation cellulaire n'induisant pas de réponse vis-à-vis de déterminants auto-antigéniques. |
WO1993025236A1 (fr) * | 1992-06-12 | 1993-12-23 | Vacsyn S.A. | Composition adjuvante de l'immunite humorale et a mediation cellulaire n'induisant pas de reponse vis-a-vis de determinants auto-antigeniques |
FR2706772A1 (en) * | 1993-06-22 | 1994-12-30 | Vacsyn Sa | Prevention and treatment of septic syndrome with an immunosuppressant, in particular cyclosporin. |
WO1996020222A1 (fr) * | 1994-12-27 | 1996-07-04 | Dimminaco Ag/Sa/Ltd. | Nouveaux derives de cyclodextrines et leurs procedes de preparation |
WO2000039137A3 (fr) * | 1998-12-28 | 2002-10-24 | Univ Iowa Res Found | Synthese regiospecifique de tensioactifs a base de glucose |
Also Published As
Publication number | Publication date |
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AU8282991A (en) | 1992-02-18 |
JPH05508653A (ja) | 1993-12-02 |
EP0539457A1 (fr) | 1993-05-05 |
CA2087536A1 (fr) | 1992-01-19 |
FR2672496B3 (fr) | 1993-05-28 |
FR2672496A1 (fr) | 1992-08-14 |
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