IP Library Granted Patent US 9,884,028
Granted Patent B2
US 9,884,028 · App. 14/683,901 · Granted Feb 6, 2018

Methods for treatment of bladder cancer

Inventors: Asher Holzer (Haifa, IL); Dorit Daniel (RaAnana, IL); Eran Hirszowicz (Ramat-Gan, IL)
Assignee: UroGen Pharma Ltd.
A61K9/70A61K9/0024A61K9/0034A61K31/7068A61K35/74A61K45/06A61L31/145A61M25/10A61M31/00A61N5/0603A61B1/012A61B5/4839A61M25/04A61M25/1011A61M2025/0096A61M2025/105A61M2210/1085
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Quick Facts
Patent No.
US 9,884,028
App. No.
14/683,901
Granted
Feb 6, 2018
Kind
B2
Abstract

Apparatus and methods for treatment of an internal cavity are provided. The internal cavity is coated with a treatment solution. The treatment solution can include a solidifiable matrix with or without a drug or combination of drugs incorporated therein, or a drug solution without a solidifiable matrix. The treatment solution is coated onto at least a portion of the internal cavity, and acts as a slow-release drug delivery system.

Claims (18)

1. A method of treating urinary bladder cancer comprising:

a) obtaining a treatment solution consisting of:

(i) at least one anticancer agent,

(ii) at least one polymer,

(iii) water, and

(iv) optionally at least one of:

(a) an antibiotic or

(b) a halobacter bacterium;

b) administering the treatment solution directly to an internal wall of a urinary bladder of a human in need thereof;

c) coating at least a portion of the internal wall of the urinary bladder of the human with the treatment solution; and

d) stabilizing the treatment solution in the urinary bladder of the human without contact with urine.

2. The method of claim 1 , wherein the anticancer agent is selected from the group consisting of bacillus calmett-guerin, thiotepa, doxorubicin, halobacter, gemcitabine, mitomycin C, epirubicin, paclitaxel and any combination thereof.

3. The method of claim 2 , wherein the anticancer agent is gemcitabine.

4. The method of claim 1 , wherein the at least one polymer is at least one of:

at least one hydrophilic polymer or

at least one hydrophobic polymer.

5. The method of claim 1 , wherein the at least one polymer is at least one of glycolic acid, polylactic acid, polyurethanes, polyphosphazines, polycaprolactone, poly[bis(pcarboxyphenoxy) propaneanhydride], polyethylene glycol, trirnethylene carbonated and polymerizable acrylic ester, homopolymers and copolymers of delta-valerolactone, and p-dioxanone, copolymers of delta-valerolactone, and p-dioxanone and caprolactone, deltavalerolactone, and p-dioxanone cross-linked with bis-caprolactone, polyanhydrides, or polyvinylpyrrolidone.

6. The method of claim 5 , wherein the anticancer agent is gemcitabine and the at least one polymer is polyethylene glycol, polylactic acid, and trimethylene carbonated and polymerizable acrylic ester.

Assignments (3)
AMENDED AND RESTATED PATENT SECURITY AGREEMENT Recorded Mar 6, 2025
From: UROGEN PHARMA LTD.
To: BIOPHARMA CREDIT PLC [COLLATERAL AGENT]
Reel/Frame 070434/0319 →
PATENT SECURITY AGREEMENT Recorded Mar 18, 2024
From: UROGEN PHARMA LTD.
To: BIOPHARMA CREDIT PLC
Reel/Frame 066805/0346 →
SECURITY INTEREST Recorded Mar 18, 2022
From: UROGEN PHARMA LTD.
To: BIOPHARMA CREDIT PLC
Reel/Frame 059302/0501 →
Continuity (3)
Continuation 13726162 · Dec 23, 2012
Division 10941942 · Sep 16, 2004
Related Publication 20150209300A1 · Jul 30, 2015