Company profile for Diagonal Therapeutics

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About

Diagonal Therapeutics is a trailblazing biotech firm revolutionizing the discovery and development of agonist antibodies. Leveraging our proprietary DIAGONAL platform, we integrate cutting-edge computational and experimental methods to overcome longstanding obstacles in agonist antibody drug discovery. Our burgeoning pipeline, crafted through the DIAGONAL platform, holds promise in delivering transformative treatments to patie...
Diagonal Therapeutics is a trailblazing biotech firm revolutionizing the discovery and development of agonist antibodies. Leveraging our proprietary DIAGONAL platform, we integrate cutting-edge computational and experimental methods to overcome longstanding obstacles in agonist antibody drug discovery. Our burgeoning pipeline, crafted through the DIAGONAL platform, holds promise in delivering transformative treatments to patients, including therapies tailored for hereditary hemorrhagic telangiectasia and pulmonary arterial hypertension.

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CONTACT DETAILS

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Country
Country
U.S.A
Address
Address
Floor 8, Cambridge, MA 02139
Telephone
Telephone
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Twitter

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NEWS #PharmaBuzz

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https://www.globenewswire.com/news-release/2026/01/08/3215162/0/en/Diagonal-Therapeutics-Announces-Oversubscribed-125-Million-Series-B-Financing-to-Advance-Clinical-Development-of-Disease-Modifying-Clustering-Antibody-Pipeline.html

GLOBENEWSWIRE
08 Jan 2026

https://www.globenewswire.com/news-release/2025/12/04/3199709/0/en/Diagonal-Therapeutics-to-Present-Insights-from-HHT-IMPACT-a-Natural-History-Study-Initiated-in-Partnership-with-Cure-HHT-at-ASH-2025.html

GLOBENEWSWIRE
04 Dec 2025

https://www.globenewswire.com/news-release/2025/07/10/3113099/0/en/Diagonal-Therapeutics-Announces-Publication-of-Data-Characterizing-the-Healthcare-System-Cost-and-Impact-of-Hereditary-Hemorrhagic-Telangiectasia-HHT-in-the-American-Journal-of-Hem.html

GLOBENEWSWIRE
10 Jul 2025

https://www.globenewswire.com/news-release/2025/07/08/3111593/0/en/Diagonal-Therapeutics-Appoints-John-Lee-M-D-Ph-D-as-Chief-Medical-Officer.html

GLOBENEWSWIRE
08 Jul 2025

https://www.globenewswire.com/news-release/2025/06/18/3101304/0/en/Diagonal-s-First-in-Class-Clustering-Antibody-DIAG723-Receives-Orphan-Drug-Designation-ODD-from-U-S-FDA-and-an-ODD-Positive-Opinion-from-EMA-for-Treatment-of-Hereditary-Hemorrhagic.html

GLOBENEWSWIRE
18 Jun 2025

https://www.globenewswire.com/news-release/2025/06/12/3098057/0/en/Diagonal-Therapeutics-to-Present-New-Preclinical-Data-Demonstrating-Disease-Modifying-Potential-of-Receptor-Clustering-Antibody-Approach-in-HHT-at-EHA-2025-Congress.html

GLOBENEWSWIRE
12 Jun 2025

Drugs in Development

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Details:

The Series B financing for DIAG723, an unconjugated antibody targeting ALK-1 receptor, will advance the treatment of Hereditary Hemorrhagic Telangiectasia (HHT).


Lead Product(s): DIAG723

Therapeutic Area: Genetic Disease Brand Name: Undisclosed

Study Phase: PreclinicalProduct Type: Antibody, Unconjugated

Sponsor: Sanofi Ventures | Janus Henderson Investors | Track Capital

Deal Size: $125.0 million Upfront Cash: Undisclosed

Deal Type: Series B Financing January 08, 2026

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Annual COG
Not Confirmed
Annual COG
Not Confirmed

Lead Product(s) : DIAG723

Therapeutic Area : Genetic Disease

Highest Development Status : Preclinical

Partner/Sponsor/Collaborator : Sanofi Ventures | Janus Henderson Investors | Track Capital

Deal Size : $125.0 million

Deal Type : Series B Financing

Details : The Series B financing for DIAG723, an unconjugated antibody targeting ALK-1 receptor, will advance the treatment of Hereditary Hemorrhagic Telangiectasia (HHT).

Product Name : Undisclosed

Product Type : Antibody, Unconjugated

Upfront Cash : Undisclosed

January 08, 2026

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Details:

‍DIAG723 is a bispecific antibody designed to address HHT and PAH, in which dysregulated ALK1 signaling in endothelial cells drives the formation of arteriovenous malformations.


Lead Product(s): DIAG723

Therapeutic Area: Genetic Disease Brand Name: DIAG723

Study Phase: IND EnablingProduct Type: Antibody, Unconjugated

Sponsor: Undisclosed

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable June 18, 2025

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Annual COG
Not Confirmed
Annual COG
Not Confirmed

Details : ‍DIAG723 is a bispecific antibody designed to address HHT and PAH, in which dysregulated ALK1 signaling in endothelial cells drives the formation of arteriovenous malformations.

Product Name : DIAG723

Product Type : Antibody, Unconjugated

Upfront Cash : Inapplicable

June 18, 2025

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Details:

The financing proceeds fund the clinical advancement of Diagonal's lead program, a TGF beta receptor agonist for the treatment of hereditary hemorrhagic telangiectasia.


Lead Product(s): Undisclosed

Therapeutic Area: Genetic Disease Brand Name: Undisclosed

Study Phase: PreclinicalProduct Type: Undisclosed

Sponsor: BVF Partners

Deal Size: $128.0 million Upfront Cash: Undisclosed

Deal Type: Financing April 03, 2024

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03

Annual COG
Not Confirmed
Annual COG
Not Confirmed

Details : The financing proceeds fund the clinical advancement of Diagonal's lead program, a TGF beta receptor agonist for the treatment of hereditary hemorrhagic telangiectasia.

Product Name : Undisclosed

Product Type : Undisclosed

Upfront Cash : Undisclosed

April 03, 2024

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