CONTROLLED RELEASE FORMULATIONS WITH CONTINUOUS EFFICACY
First Claim
Patent Images
1. A pharmaceutical composition comprising:
- a) a matrix composition having a cylindrical shape and, optionally, one or more tapered end, the matrix composition comprising;
i) an active drug substance which is an analgesic; and
ii) at least one polyglycol; and
b) a coating substantially surrounding the matrix composition and having at least one opening exposing at least one surface of said matrix, said coating being substantially impermeable to an aqueous medium;
wherein the pharmaceutical composition provides a steady state C24 of the active drug substance that is at least 20% of steady state Cmax of the active drug substance.
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Abstract
The present invention relates to pharmaceutical compositions, which provide controlled release of a drug. The compositions are suitable for continuous administration as they remain effective throughout the treatment regimen. The present invention also relates to the use of the compositions for preparation of a medicament for continuous treatment of an individual.
141 Citations
48 Claims
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1. A pharmaceutical composition comprising:
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a) a matrix composition having a cylindrical shape and, optionally, one or more tapered end, the matrix composition comprising; i) an active drug substance which is an analgesic; and ii) at least one polyglycol; and b) a coating substantially surrounding the matrix composition and having at least one opening exposing at least one surface of said matrix, said coating being substantially impermeable to an aqueous medium; wherein the pharmaceutical composition provides a steady state C24 of the active drug substance that is at least 20% of steady state Cmax of the active drug substance. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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2. A pharmaceutical composition for treatment of a clinical condition, wherein the medicament is prepared for administration once daily for at least 3 days, the pharmaceutical composition comprising:
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a) a matrix composition having a cylindrical shape and, optionally, one or more tapered end, the matrix composition comprising; i) an active drug substance; and ii) at least one polyglycol; and b) a coating substantially surrounding the matrix composition and having at least one opening exposing at least one surface of said matrix, said coating being substantially impermeable to an aqueous medium.
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47. A method for continuously treating pain in an individual in need thereof, said method comprising continuously administering to said individual once daily, a pharmaceutical composition comprising:
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a) a matrix composition having a cylindrical shape and optionally including one or more tapered end(s), the matrix composition comprising; i) an active drug substance which is an analgesic; and ii) at least one polyglycol; and b) a coating substantially surrounding said matrix composition and having at least one opening exposing at least one surface of said matrix, said coating being impermeable to water; wherein the composition provides a steady state C24 of the active drug substance that is at least 20% of steady state Cmax of the active drug substance.
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48. Use of a composition of an active drug substance for the preparation of a medicament for continuous treatment of pain in an individual in need thereof, wherein the medicament is prepared for continuous administration once daily, and wherein steady state C24 of the active drug substance is at least 20% of steady state Cmax of the active drug substance and the composition comprises:
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a) a matrix composition having a cylindrical shape and optionally including one or more tapered end(s), the matrix composition comprising; i) an active drug substance which is an analgesic; and ii) at least one polyglycol; and b) a coating substantially surrounding said matrix composition and having at least one opening exposing at least one surface of said matrix, said coating being impermeable to water.
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Specification