IP Library Granted Patent US 9,750,715
Granted Patent B2
US 9,750,715 · App. 12/162,558 · Granted Sep 5, 2017

Method of reversing, preventing, delaying or stabilizing soft tissue calcification

Inventors: Keith Chan (Rockville, MD); Winston Town (Hong Kong, HK); Shou Shan Chiang (Linkou Shiang, TW)
Assignee: Panion & Biotech Inc.
A61K31/295A61K9/143A61K31/555A61K33/26
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Quick Facts
Patent No.
US 9,750,715
App. No.
12/162,558
Granted
Sep 5, 2017
Kind
B2
Abstract

The present invention provides methods of treating soft tissue calcification in a subject, comprising a step of administering to said subject an effective amount of ferric organic compound, such as ferric citrate. The claimed methods may prevent, reverse, delay or stabilize soft tissue calcification in a subject having chronic kidney disease. Affected soft tissue calcification includes soft tissue calcification in the joint, skin, eye, in cardiovascular system such as heart valve, myocardium, coronary arteries and arteriole, or in internal organs such as kidney and lung.

Claims (13)

1. A method of reversing soft tissue calcification in a subject, comprising administering to said subject an effective amount of ferric citrate having a dissolution rate of at least 2 mg/cm 2 /min, wherein soft tissue calcification is reversed.

2. The method of claim 1 , wherein the ferric citrate has a dissolution rate from about 2 mg/cm 2 /min to about 4 mg/cm 2 /min.

3. The method of claim 1 , wherein the soft tissue is selected from soft tissue in a joint, the skin, an eye, a heart valve, the myocardium, a coronary artery, a coronary arteriole, a kidney and a lung.

4. The method of claim 3 , wherein the soft tissue is eye tissue.

5. The method of claim 1 , wherein the ferric citrate is formulated for oral administration.

6. The method of claim 5 , wherein the ferric citrate is formulated as a tablet, a powder, a suspension, an emulsion, a capsule, a lozenge, a granule, a troche, a pill, a liquid, a spirit or a syrup.

7. The method of claim 1 , wherein the effective amount of ferric citrate is 2 grams per day.

8. The method of claim 1 , wherein the effective amount of ferric citrate is 4 grams per day.

9. The method of claim 1 , wherein the effective amount of ferric citrate is 6 grams per day.

10. The method of claim 1 , wherein calcification is reversed by up to 40%.

11. The method of claim 1 , wherein calcification is reversed by up to 56%.

12. The method of claim 1 , wherein calcification is reversed by up to 67%.

13. The method of claim 1 , wherein calcification is reversed by up to 100%.

Assignments (19)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jun 25, 2024
From: BIOPHARMA CREDIT PLC
To: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
Reel/Frame 067839/0134 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jan 29, 2024
From: BIOPHARMA CREDIT PLC
To: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
Reel/Frame 066377/0741 →
FIFTEENTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jan 4, 2024
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 066205/0143 →
THIRTEENTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 29, 2023
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 063189/0065 →
TWELFTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Nov 29, 2022
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 062012/0561 →
ELEVENTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Aug 22, 2022
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 061297/0238 →
TENTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jun 16, 2022
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 060529/0168 →
SECURITY INTEREST Recorded Dec 15, 2021
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 058399/0055 →
SEVENTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Sep 12, 2021
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 057474/0770 →
SIXTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jun 11, 2021
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 056544/0468 →
FIFTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 30, 2021
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 055776/0491 →
FOURTH AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 17, 2020
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 054793/0455 →
THIRD AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Sep 10, 2020
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 054173/0451 →
SECOND AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Sep 2, 2020
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 053671/0221 →
SECURITY INTEREST Recorded Apr 2, 2020
From: AKEBIA THERAPEUTICS, INC.; KERYX BIOPHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 052295/0662 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2011
From: GLOBOASIA, LLC
To: PANION & BF BIOTECH INC.
Reel/Frame 026121/0809 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2011
From: CHAN, KEITH; TOWN, WINSTON
To: PANION & BF BIOTECH INC.
Reel/Frame 026121/0716 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2009
From: CHIANG, SHOU SHAN
To: PANION & BIOTECH, INC.
Reel/Frame 023324/0594 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2009
From: CHAN, KEITH; TOWN, WINSTON
To: GLOBOASIA, LLC
Reel/Frame 023286/0402 →
Priority Claims (1)
WO PCT/US2006/032585 · Aug 18, 2006 · international
Continuity (2)
Provisional Application 60763253 · Jan 30, 2006
Related Publication 20090326060A1 · Dec 31, 2009