We are a leading, late-stage clinical company focused on developing innovative gut microbiome-driven therapies to modulate the immune system and enhance cancer patient survival. Supported by a talented team committed to making a difference for patients worldwide, the Company was founded in 2014 and is based in Lyon, France.
As a pioneer, MaaT Pharma has reached a major milestone in its development in January 2025, with positive topline results from its Phase 3 clinical trial evaluating its microbiome-driven immunomodulator in oncology. Using its proprietary pooling and co-cultivation technologies, MaaT Pharma develops high diversity, standardized drug candidates, aiming at extending life of cancer patients. MaaT Pharma has been listed on Euronext Paris (ticker: MAAT) since 2021.
Enhancing Survival Through Innovative Immune Modulation
We are a late-stage clinical company developing microbiome therapies to modulate the immune system and improve cancer survival.
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Corporate profile
Press Releases
November 5, 2025: MaaT Pharma Presents Updated Preclinical Data at SITC Annual Meeting Demonstrating Immune Activation and Anti-Tumor Activity of MaaT034
MaaT Pharma Presents Updated Preclinical Data at SITC Annual Meeting Demonstrating Immune Activation and Anti-Tumor…
November 4, 2025: MaaT Pharma Reports Financial Results for the Third Quarter 2025 and Provides Financing Update
November 3, 2025: MaaT Pharma Announces Positive Phase 3 Results Evaluating Xervyteg® (MaaT013) in Acute Graft-versus-Host Disease Selected for Oral Presentation at ASH Congress 2025
Media Coverage
October 30, 2025: Éric Soyer – Directeur Financier MAAT PHARMA : Stratégie & actualités – Lyon Place Financière (French Only)
August 7, 2025: French Tech : Maat Pharma traite les complications de greffe de moelle osseuse – BFM Business (French Only)
July 21, 2025: World’s First Hemato-Oncology Microbiota Therapeutic Among Latest New EU Filings – Citeline
Posters
MaaT013 Pooled Fecal Microbiotherapy Improves Gastrointestinal Physiology And Controls Inflammation Which Delays GvHD In A Proof-Of-Concept Humanized Mouse Study
Poster coming soon!
MaaT034, a new co-cultured microbiome ecosystem therapy candidate, potentiates anti-PD1 mediated antitumoral activity in germ-free mice
MaaT034, a new co-cultured microbiome ecosystem therapy candidate, safely colonizes the gastro-intestinal tract of germ-free mice to restore a healthy gut physiology and stimulates immunity










