Method and composition for administering an NMDA receptor antagonist to a subject
DC CAFCFirst Claim
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1. A method of administering memantine to a human subject in need thereof comprising:
- administering to said subject once daily a sustained release oral dosage form comprising 5 to 40 mg of memantine or a pharmaceutically acceptable salt thereof and a component that sustains release of said memantine or salt thereof,wherein said sustained release memantine provides a change in plasma concentration as a function of time (dC/dT) that is less than about 50% of the dC/dT provided by the same quantity of an immediate release form of memantine, wherein the dC/dT is measured in a single dose human PK study between the time period of 0 to Tmax of the immediate release form of memantine;
and wherein the subject has a condition selected from the group consisting of Alzheimer'"'"'s disease, dementia, Parkinson'"'"'s disease, and neuropathic pain.
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Abstract
The invention provides methods and compositions for administering an NMDA receptor antagonist (e.g., memantine) to a subject.
103 Citations
18 Claims
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1. A method of administering memantine to a human subject in need thereof comprising:
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administering to said subject once daily a sustained release oral dosage form comprising 5 to 40 mg of memantine or a pharmaceutically acceptable salt thereof and a component that sustains release of said memantine or salt thereof, wherein said sustained release memantine provides a change in plasma concentration as a function of time (dC/dT) that is less than about 50% of the dC/dT provided by the same quantity of an immediate release form of memantine, wherein the dC/dT is measured in a single dose human PK study between the time period of 0 to Tmax of the immediate release form of memantine; and wherein the subject has a condition selected from the group consisting of Alzheimer'"'"'s disease, dementia, Parkinson'"'"'s disease, and neuropathic pain. - View Dependent Claims (2, 3, 4, 5)
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6. A method of reducing the potential for an adverse effect while administering memantine to a human subject in need thereof, comprising:
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orally administering to the human subject once per day a sustained release oral dosage form comprising 5-40 mg of memantine or a pharmaceutically acceptable salt thereof and a component that sustains release of the memantine or salt thereof, wherein said sustained release memantine provides a change in plasma concentration as a function of time (dC/dT) that is less than about 50% of the dC/dT provided by the same quantity of an immediate release form of memantine, wherein the dC/dT is measured in a single dose human PK study between the time period of 0 to Tmax of the immediate release form of memantine; and wherein the subject has a condition selected from the group consisting of Alzheimer'"'"'s disease, dementia, Parkinson'"'"'s disease, and neuropathic pain. - View Dependent Claims (7, 8, 9)
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10. A method of administering memantine to a human subject in need thereof comprising:
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administering to said subject once daily a sustained release oral dosage form comprising 5 to 40 mg of memantine or a pharmaceutically acceptable salt thereof and a component that sustains release of said memantine or salt thereof, wherein said sustained release memantine provides a change in plasma concentration as a function of time (dC/dT) in a defined time period of 0 to 6 hours after administration as measured in a single dose human PK study that is less than about 50% of the dC/dT provided by the same quantity of an immediate release form of memantine in said defined time period; and wherein the subject has a condition selected from the group consisting of Alzheimer'"'"'s disease, dementia, Parkinson'"'"'s disease, and neuropathic pain. - View Dependent Claims (11, 12, 13, 14)
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15. A method of reducing the potential for an adverse effect while administering memantine to a human subject in need thereof, comprising:
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orally administering to the human subject once per day a sustained release oral dosage form comprising 5-40 mg of memantine or a pharmaceutically acceptable salt thereof and a component that sustains release of the memantine or salt thereof, wherein said sustained release memantine provides a change in plasma concentration as a function of time (dC/dT) in a defined time period of 0 to 6 hours after administration as measured in a single dose human PK study that is less than about 50% of the dC/dT provided by the same quantity of an immediate release form of memantine in said defined time period; and wherein the subject has a condition selected from the group consisting of Alzheimer'"'"'s disease, dementia, Parkinson'"'"'s disease, and neuropathic pain. - View Dependent Claims (16, 17, 18)
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Specification