Sustained delivery of leuprolide using an implantable system
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United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
Jan 30, 1997
filing date -
Feb 2, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention is directed to a device for delivering an active agent formulation for a predetermined administration period. An impermeable reservoir is divided into a water-swellable agent chamber and an active agent formulation chamber. Fluid from the environment is imbibed through a semipermeable plug into the water-swellable agent chamber and the active agent formulation is released through a back-diffusion regulating outlet. Delivery periods of up to 2 years are achieved.
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