Quetiapine formulations
First Claim
Patent Images
1. A solid dosage formulation comprising a matrix wherein the matrix comprises:
- a therapeutically effective amount of quetiapine or a pharmaceutically acceptable salt thereof; and
a wax material.
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Abstract
The invention provides novel dosage forms of quetiapine and its salts, particularly quetiapine hemifumarate including wax dosage forms, press-coat dosage forms, and sprinkle dosage forms, and other novel dosage forms. The invention also provides sustained release and pulsed release dosage forms of quetiapine and its salts. Methods of making novel quetiapine dosage forms are given. Methods of treating schizophenia and other neuropsychiatric disorders by administering an effective amount of the dosage forms disclosed herein, either alone or in combination with one or more other medicaments, are also provided by the invention
38 Citations
100 Claims
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1. A solid dosage formulation comprising a matrix wherein the matrix comprises:
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a therapeutically effective amount of quetiapine or a pharmaceutically acceptable salt thereof; and
a wax material. - View Dependent Claims (2, 3, 4, 5, 11)
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6-10. -10. (canceled)
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12-17. -17. (canceled)
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18. A press-coat dosage form comprising
a core composition comprising an active agent, which active agent is quetiapine or a pharmaceutically acceptable salt thereof, a wax material; - and
a coating composition comprising a hydrophilic polymer, wherein the coating composition is press-coated onto the core composition. - View Dependent Claims (19, 23)
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20-22. -22. (canceled)
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24-44. -44. (canceled)
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45. A controlled release dosage form comprising a pharmaceutically effective amount of quetiapine or a pharmaceutically acceptable salt thereof and at least one excipient,
exhibiting a dissolution profile such that at 4 hours after combining the dosage form with a dissolution media 50 to 95% of the quetiapine or the pharmaceutically acceptable salt thereof is released.
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47-57. -57. (canceled)
- 58. An oral dosage form comprising quetiapine or a pharmaceutically acceptable salt thereof in controlled release form which provides a maximum quetiapine plasma concentration (Cmax) and an quetiapine plasma concentration at about 24 hours after administration (C24), wherein the ratio of Cmax to C24 is less than about 4:
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60-65. -65. (canceled)
- 66. An oral dosage form comprising quetiapine or a pharmaceutically acceptable salt thereof in sustained release form, which, at steady-state, provides a first maximum quetiapine plasma concentration (Cmax1) between 0 hours and about 12 hours after administration, and a second maximum quetiapine plasma concentration (Cmax2) between about 12 hours and about 24 hours after administration.
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68-75. -75. (canceled)
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78. (canceled)
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79. An oral dosage form comprising quetiapine or a pharmaceutically acceptable salt thereof in sustained release form, which, at steady-state, provides a first AUC (AUC1) between 0 and about 12 hours and a second AUC (AUC2) between about 12 hours and about 24 hours, wherein difference between AUC2 and AUC1 is less than about 50%.
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80-98. -98. (canceled)
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100. (canceled)
Specification