Transdermal systems for the delivery of therapeutic agents including granisetron using iontophoresis
First Claim
1. A method of providing transdermal delivery of a plurality of doses of a charged therapeutic substance comprising:
- (a) providing a skin-worn device comprising;
(1) a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, said donor reservoir further including circuit elements configured to deliver a plurality of successive doses of a therapeutic substance by sequentially selectively connecting a plurality of separate sources of reactive material in said circuit in a manner such that each dose is delivered by a different source of reactive material;
(2) a counter reservoir;
(3) a source of electric power connected in a circuit between said donor reservoir and said counter reservoir; and
(4) a control system for controlling current flow in said circuit and configured to enable the plurality of successive doses of said therapeutic substance to be administered from said donor reservoir;
(b) applying said skin-worn device to the skin of a patient; and
(c) using said control system to control current flow in said circuit to provide a plurality of doses of said therapeutic substance.
4 Assignments
0 Petitions
Accused Products
Abstract
A disposable skin-worn device for the transdermal delivery at least one dose of charged therapeutic substances, including granisetron, by iontophoresis, the device comprising a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, a counter reservoir, a source of electric power connected in a circuit between the donor reservoir and the counter reservoir and a control system for controlling current flow in the circuit to enable at least one dose of the therapeutic substance to be delivered transdermally by iontophoresis and wherein the control system includes a control element selected from the group consisting of a sensor activated by an external signal and a switch.
44 Citations
26 Claims
-
1. A method of providing transdermal delivery of a plurality of doses of a charged therapeutic substance comprising:
-
(a) providing a skin-worn device comprising; (1) a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, said donor reservoir further including circuit elements configured to deliver a plurality of successive doses of a therapeutic substance by sequentially selectively connecting a plurality of separate sources of reactive material in said circuit in a manner such that each dose is delivered by a different source of reactive material; (2) a counter reservoir; (3) a source of electric power connected in a circuit between said donor reservoir and said counter reservoir; and (4) a control system for controlling current flow in said circuit and configured to enable the plurality of successive doses of said therapeutic substance to be administered from said donor reservoir; (b) applying said skin-worn device to the skin of a patient; and (c) using said control system to control current flow in said circuit to provide a plurality of doses of said therapeutic substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 24)
-
-
16. A method of administering granisetron to the body of a patient comprising:
-
(a) providing a disposable skin-worn patch device for the delivery of granisetron by iontophoresis, capable of providing a plurality of doses of granisetron to the body, comprising; (1) a donor reservoir containing granisetron, said donor reservoir further including circuit elements configured to deliver a plurality of successive doses of granisetron by sequentially selectively connecting a plurality of separate sources of reactive material in said circuit in a manner such that each dose is delivered by a different source of reactive material; (2) a counter reservoir; (3) a source of electrical power; and (4) a control system configured for controlling administration using a first completed circuit for supplying a primary dose of between about 300 μ
g and about 1000 μ
g of granisetron in a less than 2-hour time period upon application of the patch to the body surface, and user-operable device to allow user to self-administer sequentially an additional dose of between about 300 μ
g and about 1000 μ
g of granisetron;(b) applying said device to the skin of a patient; and (c) using said user operable device to administer an additional dose of granisetron when desired. - View Dependent Claims (17)
-
-
23. A disposable skin-worn device for the transdermal delivery of a plurality of doses of a charged therapeutic substance by iontophoresis comprising:
-
(a) a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, said donor reservoir further including elements configured to deliver a plurality of successive doses of a therapeutic substance by sequentially selectively connecting a plurality of separate sources of reactive material in said circuit in a manner such that each dose is delivered by a different source of reactive material; (b) a counter reservoir; (c) a source of electric power connected in a circuit between said donor reservoir and said counter reservoir; and (d) a user-operable control system configured to enable the plurality of successive doses of said therapeutic substance to be administered from said donor reservoir.
-
-
25. A method of providing transdermal delivery of a plurality of doses of a charged therapeutic substance to a patient, the method comprising:
-
(a) applying to a skin site of the patient a skin-worn device comprising; (i) a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, said donor reservoir further including circuit elements configured to deliver a plurality of successive doses of a therapeutic substance by sequentially selectively connecting a first and second electrode in a manner such that each dose is delivered by a different electrode; (2) a counter reservoir; (3) a source of electric power connected in a circuit between said donor reservoir and said counter reservoir; and (4) a control system for controlling current flow in said circuit and configured to enable the plurality of successive doses of said therapeutic substance to be administered from said donor reservoir; (b) controlling current flow in said circuit in a manner sufficient to iontophoretically deliver said therapeutic substance by said first electrode until said first electrode'"'"'s reactive species is depleted; and (c) controlling current flow in said circuit in a manner sufficient to iontophoretically deliver said therapeutic substance by said second electrode. - View Dependent Claims (26)
-
Specification