Methods and devices for providing prolonged drug therapy
DCFirst Claim
1. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject that comprises administering a pharmaceutically acceptable composition comprising methylphenidate or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier to a patient in a manner that achieves an ascending release rate of said methylphenidate beginning with a first periodic interval that begins at time t=0 and continuing through about 5.5 hours following said administration.
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Abstract
Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
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Citations
32 Claims
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1. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject that comprises administering a pharmaceutically acceptable composition comprising methylphenidate or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier to a patient in a manner that achieves an ascending release rate of said methylphenidate beginning with a first periodic interval that begins at time t=0 and continuing through about 5.5 hours following said administration.
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2. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject comprising orally administering a dosage form to said subject, wherein said dosage form comprises
an immediate release coating comprising methylphenidate hydrochloride; - and
a sustained release portion comprising methylphenidate hydrochloride and a pharmaceutically acceptable carrier, wherein; said dosage form provides release of said methylphenidate hydrochloride over a period comprising first, second, third, and fourth sequential, one-hour time intervals; and said sustained release portion releases more of said methylphenidate hydrochloride during said second interval than during said first interval, more of said methylphenidate hydrochloride during said third interval than during said second interval, and more of said methylphenidate hydrochloride during said fourth interval than during said third interval. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject comprising orally administering a dosage form to said subject, wherein said dosage form comprises
an immediate release portion comprising methylphenidate or a pharmaceutically effective salt thereof; - and
a sustained release portion comprising methylphenidate or a pharmaceutically effective salt thereof and a pharmaceutically acceptable carrier, wherein; said dosage form releases said methylphenidate over a period comprising first, second, and third sequential one-hour time intervals, and said sustained release portion releases more of said methylphenidate during said second interval than during said first interval, and more of said methylphenidate during said third interval than during said second interval. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject comprising orally administering a dosage form to said subject, wherein said dosage form comprises:
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an immediate release portion comprising methylphenidate or a pharmaceutically effective salt thereof; and a sustained release portion comprising methylphenidate or a pharmaceutically effective salt thereof and a pharmaceutically acceptable carrier, wherein said dosage form provides a substantially ascending blood plasma concentration of said methylphenidate or pharmaceutically effective salt thereof from 2.5 hours following administration to 5.5 hours following administration. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for treating Attention Deficit Disorder or Attention Deficit Hyperactivity Disorder in a subject comprising orally administering a dosage form to said subject, wherein said dosage form comprises:
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an immediate release portion comprising methylphenidate or a pharmaceutically effective salt thereof; and a sustained release portion comprising methylphenidate or a pharmaceutically effective salt thereof and a pharmaceutically acceptable carrier, wherein said dosage form provides a substantially ascending blood plasma concentration of said methylphenidate or pharmaceutically effective salt thereof from 2.5 hours following administration to 5.5 hours following administration and wherein; said dosage form releases said methylphenidate over a period comprising at least a first and a second sequential time intervals, and said sustained release portion releases more of said methylphenidate during said first interval than during said second interval.
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Specification