IP Library Patent Application 17418003
Patent Application
App. No. 17/418,003

Therapeutic Drug for Disease Accompanied by Disorders in Retinal Cells or Retinal Tissue

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Patent No.
US None
App. No.
17/418,003
Abstract

The present invention relates to a therapeutic drug for a disease accompanied by a disorder in retinal cells or a retinal tissue, the drug including a retinal tissue, the retinal tissue being of an allogeneic origin and having a three-dimensional structure, wherein an intended patient to be given the therapeutic drug is a patient affected by a disease accompanied by a disorder of retinal cells or a retinal tissue, to be given systemically, for 1 month or more after the administration of the therapeutic drug, no immunosuppressive agent aimed at preventing graft rejection.

Claims (14)

1 . A therapeutic drug for a disease accompanied by a disorder in retinal cells or a retinal tissue, wherein the drug comprises a retinal tissue being of an allogeneic origin and having a three-dimensional structure,

wherein an intended patient to be given the therapeutic drug is a patient affected by a disease accompanied by a disorder of retinal cells or a retinal tissue, to be given systemically no immunosuppressive agent aimed at preventing graft rejection for 1 month or more after the administration of the therapeutic drug.

2 . The therapeutic drug according to claim 1 , wherein the intended patient is a patient to be given systemically no immunosuppressive agent aimed at preventing graft rejection before, during, and/or after the administration of the therapeutic drug.

3 . The therapeutic drug according to claim 1 , wherein the intended patient is a patient to be given locally no immunosuppressive agent aimed at preventing graft rejection, other than a steroidal anti-inflammatory drug and a calcineurin inhibitor before, during, and/or after the administration of the therapeutic drug.

4 . The therapeutic drug according to claim 1 , wherein the intended patient is a patient to be given locally one or more immunosuppressive agents selected from the group consisting of triamcinolone, fluocinolone, and a calcineurin inhibitor, aimed at preventing graft rejection before, during, and/or after the administration of the therapeutic drug,.

5 . The therapeutic drug according to claim 3 , wherein the intended patient is a patient to be given locally none of a steroidal anti-inflammatory drug and/or a calcineurin inhibitor, aimed at preventing graft rejection at least 1 month after the administration of the therapeutic drug.

6 . The therapeutic drug according to claim 1 , wherein the intended patient is a patient to be given no immunosuppressive agent aimed at preventing graft rejection before, during, and/or after the administration of the therapeutic drug.

7 . The therapeutic drug according to claim 1 , wherein the therapeutic drug comprises substantially no retinal pigment epithelial cells.

8 . The therapeutic drug according to claim 1 , wherein TGFβ is present at least on a surface of the retinal tissue.

9 . The therapeutic drug according to claim 1 , wherein a diameter in the major axis direction of the retinal tissue is 0.2 mm or more.

10 . The therapeutic drug according to claim 1 , wherein a total number of cells contained in a piece of the retinal tissue is 1×10 4 cells or more.

11 . The therapeutic drug according to claim 1 , wherein the surface of the retinal tissue has 50% or more by area of a continuous epithelial structure.

12 . The therapeutic drug according to claim 1 , wherein 50% or more of the total number of cells contained in a piece of the retinal tissue are cells expressing at least one of PAX6, Chx10, and Crx.

13 . The therapeutic drug according to claim 1 , wherein the retinal tissue is derived from a pluripotent stem cell.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2025
From: SUMITOMO PHARMA CO., LTD.
To: RACTHERA CO., LTD.
Reel/Frame 072399/0820 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 062212 FRAME: 0380. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jan 25, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 066371/0033 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2024
From: SUMITOMO CHEMICAL COMPANY, LIMITED
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 066212/0380 →
CHANGE OF NAME Recorded Jul 14, 2022
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD
Reel/Frame 060507/0750 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2021
From: SUGITA, SUNAO; MANDAI, MICHIKO; TAKAHASHI, MASAYO; YAMASAKI, SUGURU
To: RIKEN; SUMITOMO DAINIPPON PHARMA CO., LTD.; SUMITOMO CHEMICAL COMPANY, LIMITED
Reel/Frame 056659/0705 →