WO1998026772A1 - Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation - Google Patents
Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation Download PDFInfo
- Publication number
- WO1998026772A1 WO1998026772A1 PCT/BE1997/000134 BE9700134W WO9826772A1 WO 1998026772 A1 WO1998026772 A1 WO 1998026772A1 BE 9700134 W BE9700134 W BE 9700134W WO 9826772 A1 WO9826772 A1 WO 9826772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutina
- active ingredient
- tramadol
- mixture
- weight
- Prior art date
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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2013—Organic compounds, e.g. phospholipids, fats
-
- 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
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
- A61K31/137—Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine or methadone
Definitions
- the present invention relates to prolonged-release pharmaceutical tablets containing, as active ingredient, tramadol and / or a pharmaceutically acceptable salt thereof, as well as to their preparation.
- Tramadol which has the chemical name of ( ⁇ ) - trans-2 - [(dimethylamino) methyl] -1- (3-methoxyphenyl) cyclohexanol, is a well-known orally active pain reliever.
- the tramadol molecule actually has two chiral centers, the active ingredient used being the optically inactive form.
- a cis-trans isomerism is however possible in certain formulations based on tramadol.
- sustained release pharmaceutical tablets based on tramadol currently uses several galenical techniques and more particularly the production of lipid matrices by a thermoplastic granulation process.
- This process frequently used for the production of lipid matrices, has the advantage that it is simple, rapid, inexpensive and that it makes it possible to produce the granule in a single step while avoiding the use of solvent.
- sustained release pharmaceutical formulations containing as active ingredient tramadol and / or a pharmaceutically acceptable salt thereof mixed with a lipid excipient produced on the basis of the above process have not been found to be very satisfactory, having given rise to problems with sticking to the punches during the compression of the tablet, either too rapid tramadol release rates or even a lack of control over the release of tramadol.
- Another extreme drawback The important thing about the formulations and more particularly of the usual sustained-release tramadol tablets produced with lipid matrices and / or excipients is that they contain quantities of the cis-tramadol impurity, at the limit of the authorization accepted, ie that is to say quantities of the order of 0.3 to 0.5%.
- the object of the present invention is to remedy the aforementioned drawbacks by providing a prolonged-release pharmaceutical tablet containing as active ingredient tramadol and / or a pharmaceutically acceptable salt thereof making it possible to easily modulate the release profile of tramadol and / or its pharmaceutically acceptable salt, giving no technological problem and in which the presence of the cis-tramadol impurity does not exceed an extremely small percentage.
- the tablet comprises, as a mixture with the active ingredient, at least hydrogenated castor oil known under the trade name of Cutina (registered trademark) HR.
- the active ingredient is tramadol hydrochloride.
- the above mixture comprises from 55 to 65 parts by weight of active ingredient and from 45 to 35 parts by weight of Cutina HR.
- said mixture comprises 61 parts by weight of tramadol hydrochloride and 39 parts by weight of Cutina HR and it comprises magnesium stearate, the amount of magnesium stearate being of the order 0.5% by weight of the mixture of tramadol hydrochloride and Cutina HR.
- the invention also relates to the preparation of these pharmaceutical tablets of the sustained-release type, which consists mixing the active ingredient and Cutina HR in the form of powders so as to obtain a granule, allowing the granule thus obtained to stand at room temperature, calibrating it at the appropriate particle size range, mixing the calibrated granule with the magnesium stearate and compress it to obtain a tablet of the desired weight and hardness.
- the active ingredient and Cutina HR powders are mixed gradually starting from a speed range of 180 to 200 revolutions / minute to arrive at a speed range of 270 to 440 revolutions / minute, the duration of mixing spanning a total period of time from 15 to 29 minutes, preferably 19 minutes.
- the prolonged-release pharmaceutical tablet containing, as active ingredient, tramadol and / or a pharmaceutically acceptable salt thereof comprises, in mixture with the active ingredient, hydrogenated castor oil of the designation Cutina (registered trademark) HR.
- Cutina (registered trademark) HR is a hardened, white to slightly yellow hydrogenated castor oil powder with good flowability.
- Tramadol is used in the pharmaceutical tablet as it is or in the form of a pharmaceutically acceptable salt such as tramadol hydrochloride.
- a pharmaceutically acceptable salt such as tramadol hydrochloride.
- Particularly interesting kinetics of tramadol release were obtained by mixing 55 to 65 parts by weight of tramadol or its pharmaceutically acceptable salt with 45 to 35 parts by weight of Cutina HR, the most suitable mixture consisting of 61 parts by weight. weight of tramadol hydrochloride and 39 parts by weight of Cutina HR.
- the pharmaceutical tablet of the invention will also contain a small amount of magnesium stearate as an additional excipient, generally at a rate of 0.5% by weight relative to the mixture of active ingredient, more particularly tramadol hydrochloride and from Cutina HR.
- tablets containing tramadol hydrochloride were made with lipid excipients other than Cutina HR.
- the excipients tested were respectively cetostearyl alcohol, glyceryl monostearate and Cutina HR, the tablets containing 40% tramadol hydrochloride and 60% lipid excipient.
- cetostearyl alcohol has given the punches serious problems of bonding.
- the in vitro dissolution results are illustrated in Figure 1. In fact, only Cutina HR was able to achieve the desired slow release rate.
- FIG. 2 shows that it is possible to very easily modulate the release rate of tramadol hydrochloride as a function of the amount of Cutina HR used.
- the various curves in FIG. 2 were in fact obtained with formulations corresponding to 40% of tramadol hydrochloride, respectively 15, 30, 45 or 60% of Cutina HR and the remaining percentage consisting of Emcompress (registered trademark), a soluble thinner.
- the preparation of the pharmaceutical tablet according to the invention is very specific and generally consists of mixing tramadol or its salt and Cutina HR in the form of powders so as to obtain a granule, to allow the granule obtained to stand at room temperature. , to calibrate it to the appropriate particle size range, to mix the calibrated granule with the quantity of magnesium stearate desired and to compress the calibrated granule thus obtained to obtain a tablet of desired weight and hardness.
- a non-limiting example of the manufacture of prolonged-release tablets according to the invention is given below.
- thermoregulating mixing tank A 65 liter double-wall thermoregulating mixing tank and a GP 65 electric motor mixer equipped with the microwave option were used. Five batches of 15 to 18 kg were produced using the following procedure:
- the granule is passed through an oscillating granulator fitted with a 1.5 mm sieve so as to destroy any agglomerates and the granule is calibrated using the particle size range from 400 to 600 micrometers and preferably 500 micrometers.
- 7 mm tablets were produced using an alternative press at a pressure of 6800 kg / cm 2 .
- the evolution of the product temperature and the power consumed by the electric motor were recorded in parallel.
- thermoregulable double wall of the tank to around 60 ° C. in fact makes it possible to accelerate the increase in the temperature of the product without modifying the bonding phenomena observed locally around the propeller of the mixer.
- microwaves increases the amount of energy supplied to the mixture. It was also verified that the microwaves did not induce isomeric transformation of tramadol (HPLC assay of the cis isomer: 0.045%).
- Cutina HR as a lipid excipient for the manufacture of tramadol hydrochloride prolonged-release tablets results in tablets containing substantially less cis-tramadol impurity than tablets of the same type. used so far. This is how that in tablets not containing Cutina HR, this impurity is present in quantities of the order of 0.3 to 0.5%, the authorized limit being 0.5%. In the tablets of the invention containing Cutina HR, the presence of this cis-tramadol impurity never) exceeded 0.05%, or ten times less than the usual tablets.
- Figure 4 gives for this purpose the curve of the chromatogram established on a tablet of the invention and shows that the amount of cis relative to trans-tramadol is 0.038%.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002274934A CA2274934A1 (fr) | 1996-12-16 | 1997-12-16 | Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation |
EP97949844A EP0946161A1 (fr) | 1996-12-16 | 1997-12-16 | Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation |
AU53049/98A AU5304998A (en) | 1996-12-16 | 1997-12-16 | Sustained release pharmaceutical tablets with tramadol base and their preparation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9601044 | 1996-12-16 | ||
BE9601044A BE1010803A3 (fr) | 1996-12-16 | 1996-12-16 | Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998026772A1 true WO1998026772A1 (fr) | 1998-06-25 |
Family
ID=3890146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BE1997/000134 WO1998026772A1 (fr) | 1996-12-16 | 1997-12-16 | Comprimes pharmaceutiques a liberation prolongee a base de tramadol et leur preparation |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0946161A1 (fr) |
AU (1) | AU5304998A (fr) |
BE (1) | BE1010803A3 (fr) |
CA (1) | CA2274934A1 (fr) |
WO (1) | WO1998026772A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003039561A1 (fr) * | 2001-11-02 | 2003-05-15 | Elan Corporation, Plc | Composition pharmaceutique |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8128957B1 (en) | 2002-02-21 | 2012-03-06 | Valeant International (Barbados) Srl | Modified release compositions of at least one form of tramadol |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0654263A1 (fr) * | 1993-11-23 | 1995-05-24 | Euro-Celtique S.A. | Composition pharmaceutique à libération prolongée et procédé de préparation |
WO1995014460A1 (fr) * | 1993-11-23 | 1995-06-01 | Euro-Celtique S.A. | Formulations d'opioides pour le traitement de la douleur |
WO1996014058A1 (fr) * | 1994-11-04 | 1996-05-17 | Euro-Celtique, S.A. | Formulations opioides administrables par voie orale et obtenues par fusion-extrusion |
-
1996
- 1996-12-16 BE BE9601044A patent/BE1010803A3/fr not_active IP Right Cessation
-
1997
- 1997-12-16 AU AU53049/98A patent/AU5304998A/en not_active Abandoned
- 1997-12-16 CA CA002274934A patent/CA2274934A1/fr not_active Abandoned
- 1997-12-16 WO PCT/BE1997/000134 patent/WO1998026772A1/fr not_active Application Discontinuation
- 1997-12-16 EP EP97949844A patent/EP0946161A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0654263A1 (fr) * | 1993-11-23 | 1995-05-24 | Euro-Celtique S.A. | Composition pharmaceutique à libération prolongée et procédé de préparation |
WO1995014460A1 (fr) * | 1993-11-23 | 1995-06-01 | Euro-Celtique S.A. | Formulations d'opioides pour le traitement de la douleur |
WO1996014058A1 (fr) * | 1994-11-04 | 1996-05-17 | Euro-Celtique, S.A. | Formulations opioides administrables par voie orale et obtenues par fusion-extrusion |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003039561A1 (fr) * | 2001-11-02 | 2003-05-15 | Elan Corporation, Plc | Composition pharmaceutique |
Also Published As
Publication number | Publication date |
---|---|
BE1010803A3 (fr) | 1999-02-02 |
AU5304998A (en) | 1998-07-15 |
CA2274934A1 (fr) | 1998-06-25 |
EP0946161A1 (fr) | 1999-10-06 |
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