Tranexamic acid formulations
DC CAFCFirst Claim
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1. A tranexamic acid oral dosage form comprising:
- tranexamic acid or a pharmaceutically acceptable salt thereof; and
a modified release material which provides for the modified release of the tranexamic acid or pharmaceutically acceptable salt thereof from the dosage form such that the dosage form is suitable for administration on a two or three times a day basis;
wherein the modified release material comprises a polymer selected from the group consisting of hydroxyalkylcelluloses, alkylcelluloses, cellulose ethers, partial esters thereof, and mixtures thereof;
wherein the modified release material is present in the formulation in an amount from about 10% to about 35% by weight of the formulation;
wherein said dosage form provides an in-vitro dissolution release rate of the tranexamic acid or pharmaceutically acceptable salt thereof, when measured by a USP 27 Apparatus Type II Paddle Method @ 50 RPM in 900 ml water at 37±
0.5°
C., of less than about 40% tranexamic acid or pharmaceutically acceptable salt thereof released at about 15 minutes, less than about 70% by weight tranexamic acid or pharmaceutically acceptable salt thereof released at about 45 minutes and not less than about 50% by weight of said tranexamic acid or pharmaceutically acceptable salt thereof released by about 90 minutes; and
wherein each tranexamic acid oral dosage form provides a dose of about 650 mg of tranexamic acid.
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Abstract
Disclosed are modified release oral tranexamic acid formulations and methods of treatment therewith.
72 Citations
57 Claims
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1. A tranexamic acid oral dosage form comprising:
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tranexamic acid or a pharmaceutically acceptable salt thereof; and a modified release material which provides for the modified release of the tranexamic acid or pharmaceutically acceptable salt thereof from the dosage form such that the dosage form is suitable for administration on a two or three times a day basis; wherein the modified release material comprises a polymer selected from the group consisting of hydroxyalkylcelluloses, alkylcelluloses, cellulose ethers, partial esters thereof, and mixtures thereof; wherein the modified release material is present in the formulation in an amount from about 10% to about 35% by weight of the formulation; wherein said dosage form provides an in-vitro dissolution release rate of the tranexamic acid or pharmaceutically acceptable salt thereof, when measured by a USP 27 Apparatus Type II Paddle Method @ 50 RPM in 900 ml water at 37±
0.5°
C., of less than about 40% tranexamic acid or pharmaceutically acceptable salt thereof released at about 15 minutes, less than about 70% by weight tranexamic acid or pharmaceutically acceptable salt thereof released at about 45 minutes and not less than about 50% by weight of said tranexamic acid or pharmaceutically acceptable salt thereof released by about 90 minutes; andwherein each tranexamic acid oral dosage form provides a dose of about 650 mg of tranexamic acid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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24. A tranexamic acid oral dosage form comprising:
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tranexamic acid or a pharmaceutically acceptable salt thereof; and hydroxypropylmethylcellulose in an amount from about 10% to about 35% by weight of the dosage form; wherein the formulation provides an in-vitro dissolution release rate of the tranexamic acid or pharmaceutically acceptable salt thereof, when measured by the USP 27 Apparatus Type II Paddle Method @ 50 RPM in 900 ml water at 37±
0.5°
C. of less than about 40% tranexamic acid or pharmaceutically acceptable salt thereof released at about 15 minutes, less than about 70% by weight tranexamic acid or pharmaceutically acceptable salt thereof released at about 45 minutes, and not less than about 50% by weight tranexamic acid or pharmaceutically acceptable salt thereof released by about 90 minutes;and wherein each dosage form provides a dose of about 650 mg of tranexamic acid. - View Dependent Claims (25, 26, 46, 47, 48, 49, 50, 51)
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27. A tranexamic acid oral dosage form comprising:
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tranexamic acid or a pharmaceutically acceptable salt thereof; and hydroxypropylmethylcellulose in an amount from about 10% to about 35% by weight of the formulation; wherein the formulation releases from about 10% to about 25% by weight tranexamic acid or pharmaceutically acceptable salt thereof every 15 minutes when measured in vitro utilizing the USP 27 Apparatus Type II Paddle Method @ 50 RPM in 900 ml water at 37±
0.5°
C. such that not less than about 60% of the tranexamic acid or pharmaceutically acceptable salt thereof is released by about 90 minutes;and wherein the amount of tranexamic acid or pharmaceutically acceptable salt thereof included in the dosage form provides a dose of about 650 mg of tranexamic acid. - View Dependent Claims (28, 29, 52, 53, 54, 55, 56, 57)
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Specification