MXPA00001205A - Product comprising at least a double stranded rna combined with at least an antiviral agent - Google Patents

Product comprising at least a double stranded rna combined with at least an antiviral agent

Info

Publication number
MXPA00001205A
MXPA00001205A MXPA/A/2000/001205A MXPA00001205A MXPA00001205A MX PA00001205 A MXPA00001205 A MX PA00001205A MX PA00001205 A MXPA00001205 A MX PA00001205A MX PA00001205 A MXPA00001205 A MX PA00001205A
Authority
MX
Mexico
Prior art keywords
product according
hepatitis
dsrna
interferon
viral hepatitis
Prior art date
Application number
MXPA/A/2000/001205A
Other languages
Spanish (es)
Inventor
De Paillette Evelyne Deschamps
Original Assignee
De Paillette Evelyne Deschamps
Societe De Conseils De Recherches Et D'applications Scientifiques (Scras)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Paillette Evelyne Deschamps, Societe De Conseils De Recherches Et D'applications Scientifiques (Scras) filed Critical De Paillette Evelyne Deschamps
Publication of MXPA00001205A publication Critical patent/MXPA00001205A/en

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Abstract

The invention concerns a product comprising at least a double stranded RNA (RNAdb) combined with at least an antiviral agent for therapeutic use in the treatment of a viral disease, in particular different types of hepatitis.

Description

- | Í? * É - * 7 * L PRODUCT THAT CONTIER? Líy? LESS ONE DOUBLE HEBREW RNA IN COMBINATION WITH AT LEAST AN ANTIVIRAL AGENT Description of the invention: - The present invention relates to a product that contains at least one double-stranded RNA (ARNds_L in combination with at least one antiviral agent, preferably an interferon, for therapeutic use, simultaneously, separately or in a period of time, in the treatment of a viral disease.) Such a product can be used in particular for the treatment of hepatitis The Applicant has found that the combination of dsRNA with an antiviral agent, and in particular with an interferon, results in an unexpected smérgico effect in the treatment of viral infections, in particular in the treatment of viral hepatitis. both an object of the invention is a product containing at least one dsRNA in combination with at least one antiviral agent for therapeutic use, simultaneously, separately or in a period of time, in the treatment of a viral disease. it is preferably understood a complex of polyadenyl ico acid with acid REF .: 32733 polyuridyl, also known as poly (A) -poly (U) or Poly-adenur®. Other dsRNAs can be used for the invention, in particular a complex of polyinosinic acid with polycytidylic acid, also known as poly (I) -poly (C), as well as these same complexes modified by the introduction of uridic acid within the chain of polycyclic acid, such as the product Ampligen® manufactured by the company HEMISPHERx (for a description of these products see in particular European Patent Application EP-0, 300, 580). The dsRNA used can be, for example, a mixture of dsRNAs as defined above. The dsRNAs are preferably prepared according to the procedure described in French Patent No. 2, 622, 586. In the present application, the term "antiviral agent" is understood to mean an agent acting directly on the virus, such as ribavirin. or lamivudine, and an immunomodulatory agent, for example an agent that weakens or strengthens immune defenses, such as cyclosporin or an interferon.The antiviral agents combined with the dsRNA can be chosen, for example, from an interferon, such as interferons a , ß or? or consensus interferons, and in particular, an interferon-a (INF-a), other lymphokines, such as interleukins, for example IL6 or IL9, ganciclovir, cumermicin Al, lamivudine, ribavirin, vidarabine, dideoxyinosine (DDI) ), azathioprine, prednisolone or cyclosporine.Preferably, the antiviral agent combined with the dsRNA will be an interferon.An interferon is understood to be one or more interferons to different, such as for example Interferons a-2a, a-2b, a-2c, a-ni, a-n3, or any other analog that has comparable immunological properties. By a consensus interferon is understood, for example, the interferons INF-conl, INF-con2 and INF-con3 (these consensus interferons are described in particular in U.S. Patent No. 5,372,808 and in PCT / O Patent Application 93 / 21229). By simultaneous therapeutic use is meant in the present Application, an administration of more active ingredients by the same route and at the same time. By separate use is meant, in particular, an administration of several active ingredients at about the same time by different routes. By therapeutic administration over a period of time it is understood the administration of several é? active ingredients at different times and in particular a method of administration to which the entire administration of one of the active ingredients is completed, before the administration of the other or of the others begins. In this way it is possible to administer one of the active ingredients for several months before administering the other or other active ingredients. In this case, simultaneous administration does not occur. Viral disease is understood in particular as viral hepatitis, and in particular hepatitis B or hepatitis C. Viral hepatitis treated with the product according to the invention may be chronic or acute in nature. Preferably, the product according to the invention is intended for chronic hepatitis. The invention in particular relates to a product that is characterized in that it comprises: i) a dsRNA in combination with: n) an antiviral agent, for prolonged therapeutic use over a period of time, in the treatment of a viral disease. Preferably, the use of the dsRNA takes place before the antiviral agent.
According to a preferred variant of the invention, the invention relates to a product that is characterized in that it comprises: i) a dsRNA in combination with ii) an interferon for prolonged therapeutic use over a period of time in the treatment of a disease viral. Preferably, the use of dsRNA takes place before the inferred. Preferably the interferon used will be interferon a. According to a particular aspect of the invention, the product contains at least one dsRNA in combination with at least one antiviral agent, which can be a mmunomodulatory agent and is characterized in that it also contains at least one antiviral agent that acts directly on viruses for the simultaneous or separate use with the immunomodulatory agent or agents in the treatment of a viral disease. Preferably, the immunomodulatory agent (s) are interferons. According to another variant of the invention, the product containing at least one dsRNA in combination with at least one antiviral agent is characterized in that it also contains at least one antiviral agent for therapeutic use that is extends over a "" period of time, and that takes place before the dsRNA in the treatment of a viral disease. Among the others, antiviral Uagents which can be used for this particular variant of the invention, there can be mentioned lymphokines different from interferons such as the methylleucins, for example, IL-6 or IL-9, ganciclovir, cumermicin Al, lamivudine, ribavirin, vidarabine, dideoxyinosine (DDI), azathioprine, prednisolone or cyclosporine. More particularly, the invention relates to a product characterized in that it comprises: i) an antiviral agent in combination with li) a dsRNA, and in) an inferred, which may be simultaneously or separately combined with an antiviral agent that acts directly on the viruses, for an administration that is separated in time and carried out in the order indicated above in the treatment of a viral disease, in particular hepatitis B. The various sequences of administration of the dsRNA and the antiviral agent can be considered. According to a particular method of + - & the invention, the dsRNA and the antiviral are not administered simultaneously. Preferably, the dsRNA is administered before the antiviral agent with which it is combined. The treatment with the dsRNA preferably extends over a period of 1 to 12 months or more, for example 6 months, and followed by administration of the antiviral agent in an equivalent or different period of time. An object of the invention is also pharmaceutical compositions containing, as an active ingredient, a product according to the invention, for example a product containing at least one dsRNA in combination with at least one antiviral agent, preferably an interferon, in combination with excipients or supports suitable for therapeutic use simultaneously, separately or in a period of time, in the treatment of viral diseases. Preferably, the viral disease treated by the pharmaceutical products and the compositions according to the invention will be viral hepatitis, such as hepatitis A, B, C or G or hepatitis' not A, not B, not C, not G " for example hepatitis of a different type to types A, B, C or G. The products and pharmaceutical compositions according to The invention is directed in particular to the treatment of hepatitis B or hepatitis C. In addition, viral hepatitis treated with the products and pharmaceutical compositions according to the invention can take the form of acute or chronic viral hepatitis and will preferably consist of chronic viral hepatitis. The viral hepatitis treated with the products and pharmaceutical compositions according to the invention will be particularly preferably chronic hepatitis B or C. The pharmaceutical compositions containing a product according to the invention can be in the form of a solid., for example powders, granules, tablets, capsules, liposomes or suppositories. Suitable solid supports can be, for example, calcium phosphate, magnesium stearate, talc, sugars, lactose, dextrin, starch, gelatin, cellulose, methylcellulose, sodium carboxymethylcellulose, polyvinylpyrrolidine or wax. Pharmaceutical compositions containing a product according to the invention can be presented in the form of a liquid, for example solutions, emulsions, suspensions or syrups. Appropriate liquid supports can fefct-? "IfcSM be, for example, water, organic solvents, such as glycerol or glycols, as well as their mixtures, in various proportions, in water. Finally, the invention relates to a product according to the invention, for example a product containing at least one dsRNA and at least one antiviral agent, for manufacturing a medicament for the treatment of viral diseases, and in particular viral hepatitis. Preferably, the viral disease treated by the product according to the invention will be hepatitis B or hepatitis C. Preferably, the antiviral agent combined with the dsRNA is an interferon. An interferon α (INF-cc) will be very particularly preferred. The method of administration of the product according to the invention is chosen from conventional administration methods. For example, administration of the dsRNA can take place, for example, by the topical route, oral or parenteral, by intravenous or intramuscular injection, or by the subcutaneous route. Similarly, antiviral agents can be administered by the same routes. For each of these compounds, a A person skilled in the art will select the appropriate administration method. The administration dose considered by the medicament according to the invention is between 5 0.1 mg and 10 g per administration, depending on the type of active compound used. In the case of dsRNA, in particular that of poly (A) -poly (U), a dose can preferably be considered between 10 mg and 3 g per doses The product can be administered daily or several times a week. For example, a dose of between 15 mg and 1.5 g can be administered, preferably of the order of 50 to 300 mg two or three times per week. The dose of interferon will in theory be that usually used by a person skilled in the art, and preferably between 0.5 and 60 million international units per dose. In the case of INF-a, for example, the dose may be between 1 and 50 million units, preferably between 1 and 10, and in particular between 3 and 6 million units. In addition, the administration can be daily or take place several times a week. In particular, two or more may be administered per week three administrations. For example, it is possible Choose to manage between 3 and 6 million units two or three times a week. According to another variant of the invention, it is also possible to precede the treatment with dsRNA by a treatment with an antiviral agent. For example, an interferon, lamivudine or ribavirin could be administered during the first period, the dsRNA during a second period and finally during a third period, an interferon optionally combined with at least one antiviral agent, such as ribavirin or lamivudine. The interferon used for the treatment will preferably be an INF-a. To choose the methods and dosage of administration, a person skilled in the art could also usefully consult the following article (and the references cited therein): Daniel Dhumeaux, La rev? E du pra ct i ci en, 45 pp. 2519-2522 (1995). Unless defined otherwise, all technical and scientific terms used herein have the same meanings as those generally understood by the ordinary specialist in the field to which this invention pertains. Similarly, all publications, patent applications, all patents and all other references mentioned herein are incorporated by reference.
Clinical properties of the products according to the invention Example 1 A group of ten patients suffering from hepatitis C was treated successively with poly (A) poly (U) and then with interferon. The treatment was carried out as follows: initially, patients received two weekly administrations of a 150 mg dose of poly (A) poly (U) administered by the intravenous route for 24 weeks; After this initial treatment, patients received a dose of 3 million units of interferon, administered by the intravenous route 3 times per week for 24 weeks. After this two-stage treatment, a remission of the disease was observed in 6 of the patients, a remission followed by a relapse in a seventh patient and the treatment had no effect only in three of the patients.
? ? "A» r By way of comparison, a treatment consisting of interferon alone, produced remission in only 20% to 30% of the treated cases (see Daniel Dhumeaux, La revue du pra cti ci en, 45 PP 2519- 5 2522 (1995).
Example 2 Two groups of patients suffering from chronic active hepatitis B, the first group consisting of 42 patients (group A), the second group consisting of 44 patients (group B) received the following treatments, starting on the same date: 15 - patients in group A received a dose of 150 mg of poly (A) -poly (U) administered by the intravenous route twice a week for 24 weeks, and then a dose of 6 million units of INF-a administered by the route Subcutaneously, 3 times a week for the next 24 weeks; patients in group B did not receive treatment for the first 24 weeks and then received 6 million units of INF-a üs ^ y¡XhMtí L? &. ^ .. administered by the subcutaneous route 3 times a week for the next 24 weeks. The presence of HBV virus DNA and a serum HBe test were determined 24, 48 and 72 weeks after the date when treatment with poly (A) -poly (U) was started. The results, expressed in terms of the percentage of patients who responded to the treatment, are summarized in the following table: + P 0.001 p = 0.02 p = 0.006 Conclusion: in patients suffering from chronic, active hepatitis B, pretreatment with poly (A) -poly (U) before treatment with INF-a had the result of increasing the proportion of response to treatment for 6 months with INF- a and reduced the number of relapses after this treatment.
It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (15)

CLAIMS Having described the invention as above, the content of the following claims is claimed as property:
1. A product, characterized in that it comprises at least one double-stranded RNA (dsRNA) in association with at least one interferon for a prolonged therapeutic use over time, in the treatment of a viral hepatitis.
2. The product according to claim 1, characterized in that the use of the dsRNA takes place before that of the interferon.
3. The product according to claim 1, characterized in that the dsRNA is the polyadenylic acid formed in complex with the polyuridylic acid.
4. The product according to claim 1, characterized in that the dsRNA is an I, J7 : &7 »polyinosinic acid complex with polyidiidic acid.
5. The product according to any of claims 1, 3 or 4, characterized in that the interferon is chosen from the interferons a, β and γ. or the corresponding consensus interferons.
6. The product according to claim 5, characterized in that the interferon is an interferon a (INF-a).
7. The product according to any of claims 1 to 6, characterized in that it also comprises at least one other antiviral agent for a therapeutic use prolonged in time, and prior to that of dsRNA in the treatment of a viral hepatitis.
8. The product according to claim 7, characterized in that it comprises: i) an antiviral agent, in association with ii) a dsRNA, and iii) an interferon possibly associated simultaneously or separately "with an antiviral agent that acts directly on the viruses for a administration separated in time and carried out in the order indicated above in the treatment of a viral hepatitis.
9. The product according to any of claims 1 to 8, characterized in that the viral hepatitis is a chronic viral hepatitis.
10. The product according to any of claims 1 to 8, characterized in that the viral hepatitis is hepatitis B.
11. The product according to any of claims 1 to 8, characterized in that the viral hepatitis is hepatitis C.
12. A pharmaceutical composition, characterized in that it comprises, as an active principle, a product according to any of claims 1 to 11, in association with the appropriate excipients or carriers.
13. The use of a product according to any of claims 1 to 11, for manufacturing a medicament for treating viral hepatitis.
14. The use according to claim 13, characterized in that the viral hepatitis is hepatitis B.
15. The use according to claim 13, characterized in that the viral hepatitis is hepatitis C.
MXPA/A/2000/001205A 1997-08-04 2000-02-03 Product comprising at least a double stranded rna combined with at least an antiviral agent MXPA00001205A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR97/09975 1997-08-04
FR97/10644 1997-08-26
FR97/11543 1997-09-17

Publications (1)

Publication Number Publication Date
MXPA00001205A true MXPA00001205A (en) 2001-11-21

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