Intravaginal rings with insertable drug-containing core
First Claim
1. A vaginal ring, comprising:
- a vaginal ring body comprising a first polymeric material having at least one hollow internal channel defining an opening to the exterior of said vaginal ring body and which said hollow internal channel is adapted to receive an intravaginally administerable drug-containing core through said opening;
in combination with a drug-containing core positioned in said hollow internal channel, said drug-containing core containing a pharmaceutically effective amount of at least one intravaginally administerable drug dispersed in a second polymeric material, wherein said first and second polymeric materials may be the same or different;
wherein no portion of said drug-containing core is exposed to said exterior of said vaginal ring body.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a vaginal ring intended for the release of at least one drug over a prolonged time period. The vaginal ring contains a ring body made of a first polymeric material having at least one hollow internal channel defining an opening to the exterior of the ring body and which channel is adapted to receive a, drug-containing core through the opening, and an intravaginally administerable drug-containing core disposed in the channel. The core is positioned in the vaginal ring body suitably prior to use in order to substantially avoid initial bursts of drug into the tissues of the subject and resultant side effects such as nausea and vomiting. The core contains a pharmaceutically effective amount of at least one intravaginally administerable drug dispersed in a second polymeric material. The first and second polymeric materials may be the same or different. Representative drugs include contraceptive agents and other steroidal substances for use in hormone replacement therapy. Also disclosed are methods for preparing the vaginal rings, kits for assembling the vaginal rings, and methods of using the vaginal rings to achieve intravaginal delivery of drugs to a female.
-
Citations
30 Claims
-
1. A vaginal ring, comprising:
-
a vaginal ring body comprising a first polymeric material having at least one hollow internal channel defining an opening to the exterior of said vaginal ring body and which said hollow internal channel is adapted to receive an intravaginally administerable drug-containing core through said opening; in combination with a drug-containing core positioned in said hollow internal channel, said drug-containing core containing a pharmaceutically effective amount of at least one intravaginally administerable drug dispersed in a second polymeric material, wherein said first and second polymeric materials may be the same or different; wherein no portion of said drug-containing core is exposed to said exterior of said vaginal ring body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification