WO2011126352A2 - Médicament contre la tuberculose sur la base d'un complexe d'inclusion de cyclodextrine et de rifampicine ainsi qu'un procédé de fabrication correspondant. - Google Patents
Médicament contre la tuberculose sur la base d'un complexe d'inclusion de cyclodextrine et de rifampicine ainsi qu'un procédé de fabrication correspondant. Download PDFInfo
- Publication number
- WO2011126352A2 WO2011126352A2 PCT/KZ2011/000004 KZ2011000004W WO2011126352A2 WO 2011126352 A2 WO2011126352 A2 WO 2011126352A2 KZ 2011000004 W KZ2011000004 W KZ 2011000004W WO 2011126352 A2 WO2011126352 A2 WO 2011126352A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rifampicin
- isoniazid
- inclusion complex
- mixture
- sensitive polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
-
- 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
- A61K31/4409—Non condensed pyridines; Hydrogenated derivatives thereof only substituted in position 4, e.g. isoniazid, iproniazid
-
- 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
- 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
- A61K47/50—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6949—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
- A61K47/6951—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes using cyclodextrin
-
- 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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
- A61K9/2077—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
-
- 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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
-
- 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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
- A61K9/2846—Poly(meth)acrylates
-
- 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
- A61P31/06—Antibacterial agents for tuberculosis
Definitions
- Anti-tuberculosis drug based on the inclusion complex of cyclodextrin with rifampicin and the method for its preparation
- the invention relates to the pharmaceutical industry and can be used in medical institutions for the treatment of tuberculosis.
- the disadvantage of this tool is its high toxicity (LD 5 o 280 mg / kg in rats) due to the simultaneous dissolution of rifampicin and isoniazid in the acidic environment of the stomach, leading to the formation of a toxic product of their interaction - isonicotylhydrazone rifampicin.
- a drug for oral administration comprising a cyclodextrin inclusion complex (CC) with rifampicin and a CD inclusion complex with isoniazid in amounts of 5 to 50% of the total weight of rifampicin and isoniazid, respectively, and an additional orange dye and sweetener aspartame, as well as a method for its preparation, including processing cyclodextrin with rifampicin and treatment with cyclodextrin with isoniazid, then mixing the resulting inclusion complexes — CD with rifampicin, CD with isoniazid, followed by the addition of a dye and sweetener and packaging dry mix in sachets (application PCT / WO jNb 2005/074937, class A 61K 31/4965, 2005).
- CC cyclodextrin inclusion complex
- CD inclusion complex with isoniazid in amounts of 5 to 50% of the total weight of rifampicin and isoniazid, respectively, and an additional orange dye and
- An object of the invention is to provide an anti-tuberculosis drug for oral administration that meets the standards of DOTs, a treatment acceptable to both adults and children, and a method for its preparation.
- the technical result consists in minimizing the first stage of drug absorption while maintaining the bioavailability of rifampicin (complete dissolution of rifampicin) with toxicity (LD ⁇ 5000 mg / kg).
- the technical result is achieved by an anti-TB drug consisting of two antibacterial components, the first of which is a inclusion complex of CD with rifampicin in a molar ratio of 1: 1, and the second is granular isoniazid with a pH-sensitive polymer, excipients and a mixture of moving substances (aerosil and calcium or magnesium stearate in their weight ratio 1: 1) in the following ratio of components, mg:
- auxiliary substances use a sweetener, disintegrator, hepatoprotector, antioxidant in the following content, wt.% from the average weight of the tablet:
- antioxidant - 0.43 - 1.25 as well as a method for its production, including treatment of CD with rifampicin, granulation of isoniazid with a pH-sensitive polymer with further mixing of the CD inclusion complex with rifampicin with granulated isoniazid, sweetener, disintegrator, hepatoprotector, antioxidant and dusting the resulting intermediate with a mixture of moving substances (aerosil and calcium or magnesium stearate 1: 1) and tableting.
- all components are administered in the following ratio, mg:
- the molar ratio in the inclusion complex of cyclodextrin with rifampicin is 1: 1
- the second antibacterial agent is granular isoniazid with a pH-sensitive polymer, and as an auxiliary substance, a disintegrator, hepatoprotector, antioxidant and dusting the intermediate add a mixture of moving substances (calcium or magnesium stearate and aerosil 1: 1) at the claimed ratios.
- the proposed method for the preparation of the drug differs from the prototype method in the molar ratio of the CD inclusion complex with rifampicin, granulation of isoniazid with a pH-sensitive polymer and further mixing with additionally introduced auxiliary substances - disintegrator, hepatoprotector, antioxidant and followed by dusting with a mixture of moving substances, taking into account the claimed ratios and further tableting of the intermediate.
- a pH-sensitive polymer As a pH-sensitive polymer, a mixture of Eudragit L100 and polyvinyl acetate phthalate or shellac is used. Mannitol or aspartame are used as a sweetener, sodium croscarmellose or crospovidone of the Polyplasdon XL-10 brand are used as a disintegrant, ascorbic acid or vitamin E or succinic acid are used as antioxidants, and bifendate is used as a hepatoprotector.
- Mannitol or aspartame are used as a sweetener
- sodium croscarmellose or crospovidone of the Polyplasdon XL-10 brand are used as a disintegrant
- ascorbic acid or vitamin E or succinic acid are used as antioxidants
- bifendate is used as a hepatoprotector.
- Example 1 Consistently sift all the components of the claimed drug.
- 300 g of isoniazid with 40 g of Eudragit L 100 and 28 g of polyvinyl acetate phthalate are granulated, the granules are mixed in a high-speed mixer - granulator with 1430 g of the previously prepared cyclodextrin complex with rifampicin in a 1: 1 molar ratio for 8 minutes, then 780 g are added sequentially.
- excipients 320 g of mannitol, 340 g of crospovidone brand Polyplasdon XL-10, 20 g of bifendate, 30 g of ascorbic acid and mixed for another 8 minutes, then the resulting mixture is poured into a double cone mixer, 50 g of a mixture of sliding substances are added (25 g of Aerosil and 25 g of magnesium stearate) and dust the intermediate for 20 minutes.
- the mass content of auxiliary substances for a specific example with an average tablet weight of 255 mg is, wt.%: Mannitol - 12.15; crospovidone brand Polyplasdon XL-10 -13.33, bifendate -0.78, ascorbic acid - 1.17.
- the obtained granulate is subjected to tabletting on a Manesta rotary tablet press, achieving the necessary technological parameters of the tablet — strength not less than 97.0%, disintegration less than 3 minutes, average tablet weight within normal limits.
- the toxicity (LD 5 o on white mice and rats) of the claimed drug is 5000 mg / kg, the dispersion time is 20 s, and the dissolution of rifampicin reaches 100% in 0.1 M HCl in 15 minutes.
- table 1 aspartame is used as a sweetener, in examples 5, 10, as a pH-sensitive shellac polymer, in examples 4, 7, a mixture of calcium stearate and aerosil is used as a moving substance, in example 9, croscarmellose sodium is used as a disintegrant, in example 10 as an antioxidant is vitamin E, in example 11, succinic acid, and in the remaining examples, analogously to example 1 described above.
- the claimed drug allows you to minimize the first stage of its absorption while maintaining the bioavailability of rifampicin due to the dispersibility of the target product, the complete and separate dissolution of rifampicin and isoniazid in different environments of the gastrointestinal tract.
- the proposed anti-tuberculosis drug based on the inclusion complex of cyclodextrin with rifampicin under the conditional code RIZEF-D passed preclinical tests in the laboratory of preclinical trials of the National Center for Examination of Medicines for acute toxicity and bioavailability of rifampicin.
- Acute toxicity studies are carried out in accordance with the approved protocol ° D-09-27 / b on white outbred adult mice of both sexes weighing 25.0-30.0 g and rats of both sexes weighing 150.0-200.0 g.
- a criterion Acceptable randomization is considered the absence of external signs of the disease and the homogeneity of the groups according to body weight ( ⁇ 20%).
- body weight ⁇ 20%.
- Table 2 presents data on groups of experimental animals for the study of acute toxicity of RIZEF-D.
- mice With the introduction of the studied drug RIZEF-D at a dose of 5000 mg / kg, two of the six animals fell to mice, which is 33.3%. In the animal JSTe 6, by the end of the study, a decrease in body weight of 0.3 g was observed. The average total weight gain in the experimental group was +1.4. The increase in body weight in the experimental group of mice exceeded that of the control group by +0.3 g.
- the inventive drug RIZEF-D-dispersible tablets are classified as low-toxic drugs, because their LD50 exceeds 5000 mg / kg for both animal species.
- the average comparative pharmacokinetic profile of rifampicin in the blood plasma of rabbits after a single oral administration of RIZEF-D 60/30 (T) and RIFAHTI GN 60 mg (R) is shown in FIG. 1.
- the time (t) per hour is indicated on the X axis, the maximum concentration of drugs C max in ⁇ g / ml on the ordinate axis.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nanotechnology (AREA)
- General Engineering & Computer Science (AREA)
- Communicable Diseases (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Biotechnology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oncology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
L'invention concerne un médicament contre la tuberculose sur la base d'un complexe d'inclusion de cyclodextrine et de rifampicine ainsi qu'un procédé de fabrication correspondant. Cette invention se rapport à l'industrie pharmaceutique et peut s'utiliser dans des établissements médicaux pour traiter la tuberculose. Le médicament est constitué d'un complexe d'inclusion de cyclodextrine et de rifampicine avec un rapport molaire 1 :1, d'isoniazide granulé avec un polymère sensible au pH, de substances auxiliaires, à savoir un édulcorant, un désintégrateur, un hépatoprotecteur, un antioxydant et un mélange de substances lubrifiantes, à savoir un stéarate de calcium ou de magnésium et une silice sublimée, avec un rapport déclaré des composants; il permet de réduire au minimum la première étape d'absorption du médicament tout en préservant la biodisponibilité de la rifampicine à faible toxicité (dose limite (50) 5000 mg/kg) et, partant, de l'administrer aux patients, enfants ou adultes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201201098A EA201201098A1 (ru) | 2010-04-07 | 2011-03-29 | Противотуберкулезный препарат на основе комплекса включения циклодекстрина с рифампицином и способ его получения |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KZ2010/0417.1 | 2010-04-07 | ||
| KZ20100417 | 2010-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011126352A2 true WO2011126352A2 (fr) | 2011-10-13 |
| WO2011126352A3 WO2011126352A3 (fr) | 2011-12-01 |
Family
ID=44763441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KZ2011/000004 Ceased WO2011126352A2 (fr) | 2010-04-07 | 2011-03-29 | Médicament contre la tuberculose sur la base d'un complexe d'inclusion de cyclodextrine et de rifampicine ainsi qu'un procédé de fabrication correspondant. |
Country Status (2)
| Country | Link |
|---|---|
| EA (1) | EA201201098A1 (fr) |
| WO (1) | WO2011126352A2 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA02003596A (es) * | 2000-08-09 | 2003-10-14 | Panacea Biotec Ltd | Composiciones farmaceuticas novedosas de farmacos anti tubercular y procedimiento para su preparacion. |
| US7001893B2 (en) * | 2002-10-28 | 2006-02-21 | Council Of Scientific And Industrial Research | Inclusion complex of Rifampicin, an anti-tubercular drug, with β-cyclodextrin or 2-hydroxypropyl β-cyclodextrin and a process thereof |
-
2011
- 2011-03-29 WO PCT/KZ2011/000004 patent/WO2011126352A2/fr not_active Ceased
- 2011-03-29 EA EA201201098A patent/EA201201098A1/ru unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EA201201098A1 (ru) | 2013-03-29 |
| WO2011126352A3 (fr) | 2011-12-01 |
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