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US4961931A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for the management of hyperplasia

Assignee: Alza Corp
•
Filing: 1988-09-09
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Granted: 1990-10-09
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Expires: 2008-09-09
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Abstract

Abstract The invention is for a vaginal dispenser comprising a wall surrounding an internal lumen and having a pair of ends with one end placed inside the other end to form a closed dispenser. A vaginally administrable beneficial agent is housed in the lumen for release by the dispenser over time.

Inventors

  • 👤 Patrick S.-L. Wong

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 00:12
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/0036; A61M; A61M31/00; A61M31/002

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 179 words
A method for administering an estrogenic composition for estrogen replacement in a woman exhibiting a decrease in estrogen secretion, and for administering a progestational composition for the management of endometrial hyperplasia in said woman, which method comprises: (a) placing in the vagina of said woman a vaginal dispenser adapted and shaped for easy placement and comfortable retention in the vagina, the dispenser comprising: (1) a multiplicity of tubes with each tube comprising a wall that surrounds an internal space, said wall comprising a member selected from the group consisting of olefin, vinyl, condensation, addition and rubber diffusion and microporous polymers; (2) a composition in the internal space, said composition comprising about 2 mcg to 7.5 g of an estrogenic steroid, pharmaceutically acceptable mass transfer carrier for said steroids; (b) administering the estrogenic steroid through the wall from the dispenser into the vagina in a therapeutically effective amount for replacing the estrogen in said woman; and, (c) administering the progestational steroid through the wall in a therapeutically effective amount from the dispenser for substantially lessening endometrial hyperplasia in said woman.
Claim 2
Independent Claim 179 words
A method for administering an estrogenic composition for estrogen replacement in a woman exhibiting a decrease in estrogen secretion, and for administering a progestational composition for the management of endometrial hyperplasia in said woman, which method comprises: (a) placing in the vagina of said woman a vaginal dispenser adapted and shaped for easy placement and comfortable retention in the vagina, the dispenser comprising: (1) a multiplicity of tubes with each tube comprising a wall that surrounds an internal space, said wall comprising a member selected from the group consisting of olefin, vinyl, condensation, addition and rubber diffusion and microporous polymers; (2) a composition in the internal space, said composition comprising about 2 mcg to 7.5 g of an estrogenic steroid, pharmaceutically acceptable mass transfer carrier for said steroids; (b) administering the estrogenic steroid through the wall from the dispenser into the vagina in a therapeutically effective amount for replacing the estrogen in said woman; and, (c) administering the progestational steroid through the wall in a therapeutically effective amount from the dispenser for substantially lessening endometrial hyperplasia in said woman.
Claim 3
Independent Claim 193 words
A method of estrogen replacement for a woman in need of estrogen replacement, and for progestin management of endometrium hyperplasia responsive to a progestin in said woman, which method comprises: (a) placing in the vagina of said woman a dispenser comprising: (2) at least one tube comprising a wall composition that surrounds an internal lumen, said wall composition vinyl, condensation, and addition polymer that releases a steroid by passage through micropores in the wall, which micropores are formed by leaching a pore former from the wall, said dispenser adapted and shaped for easy placement and comfortable retention in the vagina; (2) a pharmaeutically acceptable carrier in the lumen, said carrier comprising a member selected from the group consisting of solid, liquid and semi-liquid carriers and comprising up to 7.5 g of dissolved and undissolved estrogen and progestin steroids; (b) administering the estrogen steroid from the dispenser through micropores in the wall into the vagina in a therapeutically effective amount for at least five days for replacing estrogen in said woman; and, (c) administering the progestin steroid from the dispenser through micropores in the wall into the vagina in endometrium hyperplasia in said woman.
Claim 4
Independent Claim 193 words
A method of estrogen replacement for a woman in need of estrogen replacement, and for progestin management of endometrium hyperplasia responsive to a progestin in said woman, which method comprises: (a) placing in the vagina of said woman a dispenser comprising: (2) at least one tube comprising a wall composition that surrounds an internal lumen, said wall composition vinyl, condensation, and addition polymer that releases a steroid by passage through micropores in the wall, which micropores are formed by leaching a pore former from the wall, said dispenser adapted and shaped for easy placement and comfortable retention in the vagina; (2) a pharmaeutically acceptable carrier in the lumen, said carrier comprising a member selected from the group consisting of solid, liquid and semi-liquid carriers and comprising up to 7.5 g of dissolved and undissolved estrogen and progestin steroids; (b) administering the estrogen steroid from the dispenser through micropores in the wall into the vagina in a therapeutically effective amount for at least five days for replacing estrogen in said woman; and, (c) administering the progestin steroid from the dispenser through micropores in the wall into the vagina in endometrium hyperplasia in said woman.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-10-08 1994-04-09 1994-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-10-08 1998-04-09 1998-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-10-08 2002-04-09 2002-10-09 $7700.00 Window Closed / Lapsed

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