IP Library Granted Patent US 12,630,640
Granted Patent B2
US 12,630,640 · App. 17/785,232 · Granted May 19, 2026

Bispecific caninized antibodies for treating atopic dermatitis

Inventors: Mohamad Morsey (Omaha, NE); Yuanzheng Zhang (Somerset, NJ); Anasuya Saha (Fremont, CA)
Assignee: INTERVET INC.
C07K16/2866A61P37/00C07K16/244C07K16/247C07K2317/20C07K2317/31C07K2317/52C07K2317/522C07K2317/64
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Quick Facts
Patent No.
US 12,630,640
App. No.
17/785,232
Granted
May 19, 2026
Kind
B2
Abstract

The present invention provides compositions for treating canine atopic dermatitis that comprise a caninized anti-proliferative antibody, a caninized anti-pruritic antibody, and a caninized anti-inflammatory antibody. The present invention further relates to compositions that comprise a bispecific antibody that comprises a caninized anti-pruritic antibody and a caninized anti-proliferative antibody or alternatively a bispecific antibody comprising a caninized anti-pruritic antibody and a caninized anti-inflammatory antibody.

Claims (13)

1 . A bispecific antibody comprising a monomer of a caninized anti-pruritic antibody and a monomer of a caninized anti-inflammatory antibody;

wherein the caninized anti-pruritic antibody is a caninized interleukin-31 receptor alpha (IL-31RA) antibody and the caninized anti-inflammatory antibody is a caninized interleukin-4 receptor alpha (IL-4R alpha) antibody;

wherein the caninized IL-4R alpha antibody comprises a light chain comprising the amino acid sequence of SEQ ID NO: 4 and a heavy chain comprising the amino acid sequence of SEQ ID NO: 18; and

wherein the caninized IL-31RA antibody comprises a light chain comprising the amino acid sequence of SEQ ID NO: 43 and a heavy chain comprising the amino acid sequence of SEQ ID NO: 42 or SEQ ID NO: 44.

2 . The bispecific antibody of claim 1 , wherein the light chain of the caninized IL-4R alpha antibody comprises a heavy chain constant domain 1 (CH1) in place of a light chain constant domain (CL); and wherein the heavy chain of the caninized IL-4R alpha antibody comprises the CL in place of the CH1.

3 . A composition comprising the bispecific antibody of claim 1 , wherein the composition further comprises a caninized anti-proliferative antibody.

4 . The composition of claim 3 , wherein the caninized anti-proliferative antibody is a caninized interleukin-22 (IL-22) antibody; wherein the caninized IL-22 antibody comprises a light chain comprising the amino acid sequence of SEQ ID NO: 24 and a heavy chain comprising the amino acid sequence of SEQ ID NO: 17 or SEQ ID NO: 25.

5 . The composition of claim 1 , further comprising one or more additional components selected from the group consisting of a Janus kinase (JAK) inhibitor, a spleen tyrosine kinase (SYK) inhibitor, and an antagonist to a chemoattractant receptor-homologous molecule expressed on TH2 cells.

6 . The composition of claim 5 , wherein the JAK inhibitor is

(a) a compound of the formula of:

where R 1 is C 1-4 alkyl optionally substituted with hydroxy, or a pharmaceutically acceptable salt thereof; or

(b) a compound having the structure of:

or a pharmaceutically acceptable salt thereof.

Assignments (15)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 073203/0532 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: SAHA, ANASUYA
To: MRL SAN FRANCISCO, LLC
Reel/Frame 073203/0576 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MRL SAN FRANCISCO, LLC
To: INTERVET INC.
Reel/Frame 073203/0603 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 073203/0634 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 073203/0671 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 073203/0720 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: SAHA, ANASUYA
To: MERCK SHARP & DOHME CORP.
Reel/Frame 073203/0738 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MERCK SHARP & DOHME CORP.
To: INTERVET INC.
Reel/Frame 073203/0742 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 073203/0762 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: SAHA, ANASUYA
To: MERCK SHARP & DOHME CORP.
Reel/Frame 073203/0856 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2025
From: MERCK SHARP & DOHME CORP.
To: INTERVET INC.
Reel/Frame 073203/0900 →
CHANGE OF ADDRESS Recorded Sep 26, 2023
From: INTERVET INC.
To: INTERVET INC.
Reel/Frame 065028/0818 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2022
From: MORSEY, MOHAMAD; ZHANG, YUANZHENG
To: INTERVET INC.
Reel/Frame 060222/0274 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2022
From: SAHA, ANASUYA
To: MRL SAN FRANCISCO, LLC
Reel/Frame 060222/0319 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2022
From: MRL SAN FRANCISCO, LLC.
To: INTERVET INC.
Reel/Frame 060222/0625 →
Continuity (7)
Provisional Application 63092294 · Oct 15, 2020
Provisional Application 63092296 · Oct 15, 2020
Provisional Application 63015220 · Apr 24, 2020
Provisional Application 63015209 · Apr 24, 2020
Provisional Application 62951778 · Dec 20, 2019
Provisional Application 62951793 · Dec 20, 2019
Related Publication 20230250177A1 · Aug 10, 2023
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