Tamper resistant dosage forms
First Claim
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1. A method of producing a plurality of solid oral extended release pharmaceutical dosage forms, comprising the steps of:
- mixing at least one active agent and at least one polyethylene oxide (PEO) having an approximate molecular weight of from 1 million to 15 million, to provide a first PEO composition;
providing a second PEO composition comprising at least one low molecular weight PEO having an approximate molecular weight of less than 1 million;
compressing the first PEO composition to provide a plurality of shaped matrix compositions;
curing the shaped matrix compositions by exposure to heated air at a curing temperature that is at least the softening temperature of the high molecular weight PEO for a curing time of at least about 5 minutes, to provide a plurality of cured matrix compositions;
cooling the cured matrix compositions;
combining the first and second PEO compositions, before or after curing, to provide a plurality of combined matrix compositions; and
optionally combining any of the matrix compositions with at least one additive, before or after curing andoptionally providing the cured matrix compositions with at least one film coating, after curing and cooling;
wherein(a) the molecular weight of each PEO is based on rheological measurements;
(b) the total of high and low molecular weight PEO comprises at least about 50% (by weight) of each dosage form;
(c) the total weight of each dosage form is calculated by excluding the combined weight of any final coatings; and
(d) each cured matrix composition comprises a solid oral pharmaceutical dosage form that provides an extended release of at least one active agent.
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Abstract
The present invention relates to pharmaceutical dosage forms, for example to a tamper resistant dosage form including an opioid analgesic, and processes of manufacture, uses, and methods of treatment thereof.
243 Citations
30 Claims
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1. A method of producing a plurality of solid oral extended release pharmaceutical dosage forms, comprising the steps of:
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mixing at least one active agent and at least one polyethylene oxide (PEO) having an approximate molecular weight of from 1 million to 15 million, to provide a first PEO composition; providing a second PEO composition comprising at least one low molecular weight PEO having an approximate molecular weight of less than 1 million; compressing the first PEO composition to provide a plurality of shaped matrix compositions; curing the shaped matrix compositions by exposure to heated air at a curing temperature that is at least the softening temperature of the high molecular weight PEO for a curing time of at least about 5 minutes, to provide a plurality of cured matrix compositions; cooling the cured matrix compositions; combining the first and second PEO compositions, before or after curing, to provide a plurality of combined matrix compositions; and optionally combining any of the matrix compositions with at least one additive, before or after curing and optionally providing the cured matrix compositions with at least one film coating, after curing and cooling;
wherein(a) the molecular weight of each PEO is based on rheological measurements; (b) the total of high and low molecular weight PEO comprises at least about 50% (by weight) of each dosage form; (c) the total weight of each dosage form is calculated by excluding the combined weight of any final coatings; and (d) each cured matrix composition comprises a solid oral pharmaceutical dosage form that provides an extended release of at least one active agent. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10)
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7. A method according to claimed 6, wherein the low molecular weight PEO has an approximate molecular weight of 100,000 to 900,000;
- the curing temperature is from about 65°
C to about 90°
C and the curing time is about 10 to about 10 hours.
- the curing temperature is from about 65°
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11. A method of producing a plurality of solid oral extended release pharmaceutical tablets, comprising the steps of:
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mixing at least one active agent comprising an opioid or a pharmaceutically acceptable salt thereof, and at least one polyethylene oxide (PEO) having an approximate molecular weight of from 1 million to 8 million to provide a first PEO composition; providing a second PEO composition comprising at least one low molecular weight PEO having an approximate molecular weight of less than 1,000,000; compressing the first PEO composition to provide a plurality of tablet shaped matrix compositions; curing the shaped matrix compositions by exposure to heated air at a curing temperature that is at least about 60°
C. for a curing time of at least about 10 minutes, to provide a plurality of cured matrix compositions;cooling the cured matrix compositions; combining the first and second PEO compositions, before or after curing, to provide a plurality of combined matrix compositions; optionally combining any of the matrix compositions with at least one additive, before or after curing; and optionally providing the cured matrix compositions with at least one film coating, after curing and cooling;
wherein(a) the molecular weight of each PEO is based on rheological measurements; (b) the high molecular weight PEO comprises at least about 30% (by weight) of each tablet and the low molecular weight PEO comprises at least about 10% (by weight) of each tablet; (c) the total weight of each tablet is calculated by excluding the combined weight of any final coatings; and (d) each cured matrix composition comprises a solid oral pharmaceutical tablet that provides an extended release of at least one active agent. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification