WO2002062321A2 - Procede de fabrication d'un comprime flottant incluant de l'alfuzosine - Google Patents
Procede de fabrication d'un comprime flottant incluant de l'alfuzosine Download PDFInfo
- Publication number
- WO2002062321A2 WO2002062321A2 PCT/FR2002/000474 FR0200474W WO02062321A2 WO 2002062321 A2 WO2002062321 A2 WO 2002062321A2 FR 0200474 W FR0200474 W FR 0200474W WO 02062321 A2 WO02062321 A2 WO 02062321A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- process according
- tablet
- alfuzosin
- manufacturing process
- derivatives
- 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
-
- 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
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
- A61K9/0065—Forms with gastric retention, e.g. floating on gastric juice, adhering to gastric mucosa, expanding to prevent passage through the pylorus
-
- 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
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/517—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
-
- 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
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2022—Organic macromolecular compounds
- A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
- A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/08—Drugs for disorders of the urinary system of the prostate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/10—Drugs for genital or sexual disorders; Contraceptives for impotence
-
- 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
Definitions
- the present invention relates to a method of manufacturing a floating tablet including, as active ingredient, alfuzosin.
- the invention also covers the tablet obtained.
- alfuzosin hydrochloride used in particular in the treatment of benign enlarged prostate and in the treatment of premature ejaculation, controlled release is even more necessary.
- This molecule with a short elimination half-life has the characteristic of being absorbed preferentially in the upper part of the gastrointestinal tract, more particularly in the duodenum and the jejunum.
- This second layer is suitably compressed and includes auxiliary substances so that the alfuzosin hydrochloride is released within a predetermined time interval.
- a third layer also consisting of hydrophilic polymers so as to protect the layer containing alfuzosin hydrochloride and to slow the release, at least at the start.
- Such a tablet has drawbacks. Indeed, the tablet is initially heavier than the density of the gastric fluids in which it is immersed.
- One risk is that of seeing the tablet entrained before having acquired sufficient flotation power.
- the swelling kinetics of hydrophilic polymers are slow, of the order of half an hour, and this period is sufficient for there to be evacuation.
- the sufficient swelling which would prevent passage through the pylorus is reached several hours after ingestion so that the dimensional characteristics and the possible mechanical restraint cannot overcome the problem of initial non-flotation.
- the gastric stay also depends on the anatomy of the individual, size of the pylorus, opening and closing rhythms, so that all these considerations make it possible to note strong variations. In conclusion, it is difficult to have a controlled release under such conditions.
- French patent application No. 2 784 583 describes a multilayer tablet, improved in that it comprises an effervescent couple which generates carbon dioxide in contact with gastric fluids. These carbon dioxide bubbles give the tablet flotation capabilities which allow it to stay in the stomach in a less random manner.
- the effervescent couple used contains sodium, the contribution of which is undesirable, in particular in the case of a low-sodium diet, which is another drawback.
- the manufacturing process according to the present invention of a tablet containing alfuzosin makes it possible to guarantee an optimal residence time in the stomach of the individual by an immediate flotation, a controlled release according to a profile whose kinetics can vary and be adapted, in particular, between kinetics of order 0 or 1, and to complete the retention by flotation by means of swelling.
- the tablet obtained by the method according to the present invention can be manufactured at reduced costs and does not require delicate storage conditions.
- the manufacturing process according to the invention of a tablet containing alfuzosin, is characterized in that it comprises the following stages: - preparation of a given quantity of alfuzosin according to the dosage for a given dissolution period,
- the excipient being chosen from at least one compound from the family of cellulose derivatives and / or derivatives povidone and / or polyvinyl acetate derivatives, and
- the excipient is present in an amount of 70.00 to 99.00% of the total mass of the tablet.
- Alfuzosin is in the form of alfuzosin hydrochloride.
- Compression is direct compression. To improve the homogeneity of the mixture and the compressibility of the grain, compression is preceded by wet or dry granulation.
- hydroxypropylmethylcellulose is more particularly retained and after granulation, this hydroxypropylmethylcellulose is added in the external phase.
- Alfuzosin chlorhyldrate is introduced at a rate of 1 to 100 mg and more particularly 2.5; 5 or 10 mg.
- the tablet has a weight of between 50 and 800 mg, preferably between 200 and 400 mg.
- the invention also covers the monolithic tablet obtained comprising alfuzosin hydrochloride.
- FIG. 1 shows the table of flotation of a tablet obtained by the process, with variations in the compression force in three batches (A-.
- - Figure 2 shows a dissolution curve obtained with the tablet from lot A of the compositions in the table in Figure 1
- - Figure 3 is a table of flotation of a tablet with lactose integration, in two lots (D , E).
- the process for manufacturing a tablet based on alfuzosin and for the examples which follow of alfuzosin hydrochloride consists in directly compressing the powder or in compressing granules obtained by wet or dry granulation.
- the mixture of alfuzosin hydrochloride and a low density compound makes it possible to produce a monolithic, homogeneous pellet, such that the density of this tablet is less than that of gastric fluids.
- the compression force must be adapted to respect the density of the homogeneous monolithic pellet, which must remain lower than that of gastric fluids.
- a mixture of 10 mg alfuzosin hydrochloride and a hydroxypropylmethylcellulose or HPMC derivative is prepared. It is possible to use as derivative of hydroxypropylmethylcellulose, the commercial product known under the name Metolose 90SH, with a viscosity of 4,000 centipoises. The mixture is compressed directly. The tablet has a final weight of 400 mg.
- the table in Figure 1 shows that the buoyancy is immediate for the composition compressed to 104 N.
- a fraction of hydroxypropylmethylcellulose derivative (Metolose 90SH, 4,000 centipoises) is substituted for a disintegrating agent, namely lactose. Compression is direct compression. The values are determined by known laboratory tests.
- the table in FIG. 3 shows that the flotation is immediate for the compressive forces applied 50 to 70 N, whether the lactose is present at 30 or 50%.
- On the curve of FIG. 4 (percentage of Active Principle released as a function of time t in hours), it is natural to note that the more disintegrating agent there is, the less the kinetics of dissolution are linear. The amount of lactose should be adjusted according to the desired dissolution profile.
- a tablet is produced as in Example 1 but by choosing another derivative of hydroxypropylmethylcellulose.
- a mixture of 10 mg alfuzosin hydrochloride is prepared and the product sold under the same name Metolose 90SH, but with a viscosity of 15,000 centipoise, is used as derivative.
- the pellet has an identical final weight of 400 mg.
- the compression force is 82 N.
- the compression is a direct compression determined from known laboratory tests.
- the dissolution curve is not affected by the choice of viscosity.
- Example 1 the tablet of Example 1 is used, but the total weight of the tablet is limited to 200 mg, with the same direct compression force.
- the tablet has immediate flotation.
- the dissolution curve is not affected.
- the active principle Prior to its compression, the active principle is suspended in an appropriate solvent and granulated with a retardant polymer belonging to the family of polymethacrylates (in particular that marketed under the name Eudragit RS 30 D)
- the active ingredient is dried and then passed through a 0.8 mm grid.
- An hydroxypropylmethylcellulose derivative is added externally and the mixture thus obtained is compressed. Immediate flotation is obtained.
- the release profile shows a 24-hour slowdown as shown in Figure 2. We could thus, by slowing down the kinetics, tend towards a constant release speed, that is to say towards a more linear profile.
- Example 6 A test is now carried out using a polyvinyl acetate derivative marketed under the name Kollidon SR.
- This commercial derivative comprises about 80% polyvinyl acetate and 19% povidone and 1% stabilizers. With this excipient, direct compression is facilitated and the use of a diluent is not necessary.
- a test is then carried out with a granulation step prior to compression.
- a granulation solution is prepared in an aqueous medium in which the active principle is dissolved, in this example, up to 20%.
- a mixture of 90% of Kollidon SR and 10% of a pre-gelatinized starch sold under the name Sepistab ST200 is produced.
- the granulation step is carried out by spraying the wetting solution described above.
- the grain is then dried in a fluidized air bed until a water content of less than 2% is obtained.
- the grain is then calibrated and lubrication is carried out externally before compression.
- the granulation stage makes it possible to improve the homogeneity of the mixture and the compressibility of the grain. It is noted that the process makes it possible to obtain a tablet with a monolithic and homogeneous pellet, with immediate flotation and with a substantially regular release of the active principle.
- the dosage of the active ingredient can be between 1 and 100 mg and more particularly 2.5; 5 and 10 mg.
- the weight of the tablet obtained is preferably between 50 and
- Hydroxypropylmethylcellulose or its derivatives and / or derivatives of povidone and polyvinyl acetate are present in an amount of 50.00 to 99.00% of the total mass of the tablet.
- a disintegrating agent can be added in an amount of 1 to 50% by weight.
- excipients can be added to modulate the release kinetics such as clays, crosslinked polyvinylpyrrolidone, or certain cellulose derivatives in small proportions such as hydroxypropylcellulose, crosslinked carbomethylcellulose, or compounds of the N-acetylglucosamine family in particular. chitosan.
- agents making it possible to accelerate the kinetics of dissolution are the hydrophilic agents added in external phase: mannitol, lactose, starch and modified starch, sorbitol, xylitol, or microcrystalline cellulose.
- hydrophilic agents added in external phase mannitol, lactose, starch and modified starch, sorbitol, xylitol, or microcrystalline cellulose.
- liposoluble diluting agents on the contrary make it possible to slow down the release of the active principle such as: palmitates, castor oil, glycerol monostearate. These agents help to make the tablet obtained even more floating by reducing the density of the system.
- the release kinetics can also be slowed down by ensuring granulation of the active principle with retarding agents such as polyvinylpyrrolidone, gelatin, ethylcellulose, polymethacrylate derivatives, alginic acid and its salts.
- retarding agents such as polyvinylpyrrolidone, gelatin, ethylcellulose, polymethacrylate derivatives, alginic acid and its salts.
- hydroxypropylmethylcellulose added externally.
- lubricants such as: glycerol monostearate, polyoxyethylene glycol derivatives, glycerol behenate as well as flow agents such as derived from colloidal silica. It is understood that the simplified manufacturing process makes it possible to reduce costs significantly. Not only are the stages less numerous but the execution conditions are less complex, due in particular to the absence of effervescent couple.
- the kinetics of dissolution of alfuzosin hydrochloride can be adjusted at least between an order of 0 and 1.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Physiology (AREA)
- Nutrition Science (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Urology & Nephrology (AREA)
- Gynecology & Obstetrics (AREA)
- Endocrinology (AREA)
- Reproductive Health (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE60211486T DE60211486D1 (de) | 2001-02-08 | 2002-02-07 | Verfahren zur herstellung einer schwimmfähigen tablette mit alfuzosin |
| AU2002235990A AU2002235990A1 (en) | 2001-02-08 | 2002-02-07 | Method for producing a floating tablet containing an active principle |
| US10/467,410 US20040115259A1 (en) | 2001-02-08 | 2002-02-07 | Method for producing a floating tablet containing an active principle and the tablet obtained |
| EP02702462A EP1368002B1 (fr) | 2001-02-08 | 2002-02-07 | Procede de fabrication d'un comprime flottant incluant de l'alfuzosine |
| CA002437630A CA2437630A1 (fr) | 2001-02-08 | 2002-02-07 | Procede de fabrication d'un comprime flottant incluant de l'alfuzosine |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR01/01711 | 2001-02-08 | ||
| FR0101711A FR2820318B1 (fr) | 2001-02-08 | 2001-02-08 | Procede de fabrication d'un comprime flottant incluant un principe actif et comprime obtenu |
| FR01/16705 | 2001-12-21 | ||
| FR0116705A FR2820319B3 (fr) | 2001-02-08 | 2001-12-21 | Procede de fabrication d'un comprime flottant incluant de l'alfuzosine et comprime obtenu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002062321A2 true WO2002062321A2 (fr) | 2002-08-15 |
| WO2002062321A3 WO2002062321A3 (fr) | 2003-02-27 |
Family
ID=26212870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/000474 Ceased WO2002062321A2 (fr) | 2001-02-08 | 2002-02-07 | Procede de fabrication d'un comprime flottant incluant de l'alfuzosine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040115259A1 (fr) |
| EP (1) | EP1368002B1 (fr) |
| AT (1) | ATE326217T1 (fr) |
| AU (1) | AU2002235990A1 (fr) |
| CA (1) | CA2437630A1 (fr) |
| DE (1) | DE60211486D1 (fr) |
| FR (1) | FR2820319B3 (fr) |
| WO (1) | WO2002062321A2 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2874325A1 (fr) * | 2004-08-19 | 2006-02-24 | Sanofi Synthelabo | Composition pharmaceutique sous forme de comprime a residence gastrique contenant de l'alfuzosine |
| WO2008073388A3 (fr) * | 2006-12-11 | 2008-12-31 | Mutual Pharmaceutical Co | Formulations d'alfuzosine, procédés de fabrication et procédés d'utilisation de celles-ci |
| US7588774B2 (en) | 2003-05-12 | 2009-09-15 | Becton, Dickinson And Company | Molecules enhancing dermal delivery of influenza vaccines |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253220C (zh) | 2001-06-29 | 2006-04-26 | 贝克顿迪肯森公司 | 通过微管在真皮内输入疫苗和基因治疗剂 |
| CN1720026A (zh) * | 2002-10-22 | 2006-01-11 | 兰贝克赛实验室有限公司 | 含有阿夫唑嗪的缓释组合物 |
| US20060062845A1 (en) * | 2004-09-17 | 2006-03-23 | Cimex Pharma Ag | Alfuzosin tablets and synthesis |
| US20060062846A1 (en) * | 2004-09-17 | 2006-03-23 | Cimex Pharma Ag | Alfuzosin tablets and synthesis |
| ITMI20050391A1 (it) * | 2005-03-11 | 2006-09-12 | Ph & T S P A | Formulazioni a rilascio controllato di alfuzosin |
| US20080318910A1 (en) * | 2005-10-04 | 2008-12-25 | Mistral Pharma, Inc. | Controlled-Release Oral Dosage Form |
| US20070292505A1 (en) * | 2006-06-15 | 2007-12-20 | Abrika Pharmaceuticals, Inc. | Controlled release alfuzosin hydrochloride formulation |
| US20080003286A1 (en) * | 2006-06-29 | 2008-01-03 | Sathya Narayana Vemula | Sustained delivery alfuzosin compositions |
| US20100092556A1 (en) * | 2006-12-11 | 2010-04-15 | Kristin Arnold | Alfuzosin formulations, methods of making, and methods of use |
| WO2008102235A1 (fr) * | 2007-02-20 | 2008-08-28 | Aurobindo Pharma Limited | Formulations d'alfuzosine à libération contrôlée |
| JP5773651B2 (ja) * | 2007-12-21 | 2015-09-02 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | 内部固形コア中に成長ホルモンを含有する固形脂質マイクロカプセル |
| CN114209668B (zh) * | 2022-01-13 | 2023-01-31 | 山东新时代药业有限公司 | 一种盐酸阿夫唑嗪缓释制剂及其制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH630257A5 (en) * | 1975-03-17 | 1982-06-15 | Hoffmann La Roche | Sustained release formulation |
| GB9311191D0 (en) * | 1993-05-29 | 1993-07-14 | Danbiosyst Uk | Controlled release drug formulation |
| CN100335057C (zh) * | 1996-08-29 | 2007-09-05 | 圣诺菲-安万特 | 阿夫唑嗪盐酸盐受控释放的片剂 |
| FR2784583B1 (fr) * | 1998-10-16 | 2002-01-25 | Synthelabo | Composition pharmaceutique a residence gastrique et a liberation controlee |
| TWI265925B (en) * | 1999-10-11 | 2006-11-11 | Pfizer | Pyrazolo[4,3-d]pyrimidin-7-ones useful in inhibiting type 5 cyclic guanosine 3',5'-monophosphate phosphodiesterases(cGMP PDE5), process and intermediates for their preparation, their uses and composition comprising them |
-
2001
- 2001-12-21 FR FR0116705A patent/FR2820319B3/fr not_active Expired - Lifetime
-
2002
- 2002-02-07 DE DE60211486T patent/DE60211486D1/de not_active Expired - Lifetime
- 2002-02-07 WO PCT/FR2002/000474 patent/WO2002062321A2/fr not_active Ceased
- 2002-02-07 AU AU2002235990A patent/AU2002235990A1/en not_active Abandoned
- 2002-02-07 AT AT02702462T patent/ATE326217T1/de not_active IP Right Cessation
- 2002-02-07 CA CA002437630A patent/CA2437630A1/fr not_active Abandoned
- 2002-02-07 EP EP02702462A patent/EP1368002B1/fr not_active Expired - Lifetime
- 2002-02-07 US US10/467,410 patent/US20040115259A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7588774B2 (en) | 2003-05-12 | 2009-09-15 | Becton, Dickinson And Company | Molecules enhancing dermal delivery of influenza vaccines |
| FR2874325A1 (fr) * | 2004-08-19 | 2006-02-24 | Sanofi Synthelabo | Composition pharmaceutique sous forme de comprime a residence gastrique contenant de l'alfuzosine |
| WO2006021692A1 (fr) * | 2004-08-19 | 2006-03-02 | Sanofi-Aventis | Composition pharmaceutique sous forme de comprime a residence gastrique contenant un principe actif |
| EA012981B1 (ru) * | 2004-08-19 | 2010-02-26 | Санофи-Авентис | Фармацевтическая композиция в форме таблетки для нахождения в желудке, содержащая активное вещество |
| AU2005276307B2 (en) * | 2004-08-19 | 2011-02-24 | Sanofi-Aventis | Pharmaceutical composition in the form of a gastric-resident tablet containing an active principle |
| WO2008073388A3 (fr) * | 2006-12-11 | 2008-12-31 | Mutual Pharmaceutical Co | Formulations d'alfuzosine, procédés de fabrication et procédés d'utilisation de celles-ci |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1368002A2 (fr) | 2003-12-10 |
| ATE326217T1 (de) | 2006-06-15 |
| AU2002235990A1 (en) | 2002-08-19 |
| WO2002062321A3 (fr) | 2003-02-27 |
| FR2820319B3 (fr) | 2003-12-05 |
| FR2820319A1 (fr) | 2002-08-09 |
| EP1368002B1 (fr) | 2006-05-17 |
| US20040115259A1 (en) | 2004-06-17 |
| CA2437630A1 (fr) | 2002-08-15 |
| DE60211486D1 (de) | 2006-06-22 |
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