IP Library › Granted Patent US 11,986,498
Granted Patent B2
US 11,986,498 · App. 14/056,101 · Granted May 21, 2024

Therapeutic products comprising vitalized placental dispersions

Inventors: Timothy Jansen (Baltimore, MD); Samson Tom (Baltimore, MD); Alla Danilkovitch (Columbia, MD); Dana Yoo (Sykesville, MD); Jaime Zerhusen (Columbia, MD)
Assignee: OSIRIS THERAPEUTICS, INC.
A61K35/28A01N1/0221A61K35/50A61K38/1825A61K38/1841A61K38/39A61K38/57C12N5/0605C12N2500/02C12N2501/115C12N2502/025
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Quick Facts
Patent No.
US 11,986,498
App. No.
14/056,101
Granted
May 21, 2024
Kind
B2
Abstract

This invention provides a fluid therapeutic placental product comprising placental cells and a placental dispersion comprising placental factors. The placental cells and the placental dispersion are derived from placental tissue. A placental tissue can optionally be an amnion, chorion, or a trophoblast-depleted chorion. The placental product of the present invention is useful in treating a patient with a tissue injury (e.g. wound or burn) by applying the placental product to the injury. Similar application is useful with ligament and tendon repair and for engraftment procedures such as bone engraftment.

Claims (12)

1. A previously refrigerated and cryopreserved placental product comprising:

a. a first fraction of placental cells isolated from a first portion of a chorionic membrane, the first fraction of placental cells comprising at least 70% viable cells of the cryopreserved placental product after thawing,

wherein the placental cells comprise at least two cell types comprising stromal cells and placental stem cells, and

wherein the first fraction of placental cells is not expanded ex vivo;

b. a disrupted chorionic membrane derived from a second portion of the chorionic membrane, the disrupted chorionic membrane comprising pieces of native chorionic membrane tissue that are greater than 100 μm in length, and a second fraction of placental cells,

wherein the disrupted chorionic membrane is depleted in functional CD14+ macrophages;

and

c. one or more placental factors comprised in or released by the first fraction of placental cells, the pieces of native chorionic membrane tissue, and the second fraction of placental cells,

wherein the placental product was refrigerated in a cryopreservation medium at a temperature of 2-8° C. for about 30 minutes to about 60 minutes prior to being cryopreserved.

2. The previously refrigerated and cryopreserved placental product of claim 1 , wherein the placental cells comprise at least about 80% viable cells in thawed placental product.

3. The previously refrigerated and cryopreserved placental product of claim 1 , wherein the placental product is further depleted of trophoblasts.

4. The previously refrigerated and cryopreserved placental product of claim 1 , wherein the product is comprised in a dermatologically acceptable pharmaceutical formulation.

Assignments (7)
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA DELETE JENNIFER MICHELLE MARCONI AND JIN-QIANG KUANG PREVIOUSLY RECORDED ON REEL 67309 FRAME 970. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNORS INTEREST. Recorded Jun 12, 2024
From: TOM, SAMSON; DANILKOVITCH, ALLA; YOO, DANA; JANSEN, TIMOTHY
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 067701/0865 →
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA REMOVE ASSIGNORS JIN-QIANG KUANG AND JENNIFER MICHELLE MARCONI PREVIOUSLY RECORDED ON REEL 67311 FRAME 436. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNORS INTEREST. Recorded Jun 12, 2024
From: TOM, SAMSON; DANILKOVITCH, ALLA; YOO, DANA; JANSEN, TIMOTHY
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 067701/0751 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2024
From: JANSEN, TIMOTHY; TOM, SAMSON; DANILKOVITCH, ALLA; YOO, DANA; ZERHUSEN, JAIME
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 067311/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2024
From: TOM, SAMSON; DANILKOVITCH, ALLA; YOO, DANA; JANSEN, TIMOTHY; MARCONI, JENNIFER MICHELLE; KUANG, JIN-QIANG
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 067309/0970 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2024
From: TOM, SAMSON; DANILKOVITCH, ALLA; YOO, DANA; JANSEN, TIMOTHY; KUANG, JIN-QIANG; MARCONI, JENNIFER MICHELLE
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 067311/0436 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2020
From: JANSEN, TIMOTHY; TOM, SAMSON; YOO, DANA; ZERHUSEN, JAIME
To: OSIRIS THERAPEUTICS
Reel/Frame 052923/0722 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2014
From: DANILKOVITCH, ALLA
To: OSIRIS THERAPEUTICS, INC.
Reel/Frame 034104/0405 →
Continuity (5)
Continuation 13030580 · Feb 18, 2011
Provisional Application 61369562 · Jul 30, 2010
Provisional Application 61338489 · Feb 18, 2010
Provisional Application 61338464 · Feb 18, 2010
Related Publication 20140037598A1 · Feb 6, 2014