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.
Corporate profile
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.
Press Releases
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Press ReleasesFebruary 3, 2026: Monthly Information Regarding the Total Number of Voting Rights and Shares Comprising the Share Capital -
Press ReleasesJanuary 20, 2026: MaaT Pharma Announces First Patient Randomized in IMMUNOLIFE Phase 2 Study Sponsored by Gustave Roussy, To Explore the Role of the Gut Microbiome To Overcome ICI Resistance in Advanced NSCLC Patients with Antibiotic-Induced Dysbiosis -
Press ReleasesDecember 8, 2025: MaaT Pharma Presents Pivotal ARES Phase 3 Results for MaaT013 (Xervyteg®) in Acute GvHD at ASH 2025 Annual Congress and Announces 54% 1-Year Overall Survival -
Press ReleasesNovember 14, 2025: MaaT Pharma announces the successful completion of its Global Offering of €9.1 million -
Press ReleasesNovember 13, 2025: MaaT Pharma Launches a Capital Increase of Approximately €9 Million -
Press ReleasesNovember 5, 2025: MaaT Pharma Presents Updated Preclinical Data at SITC Annual Meeting Demonstrating Immune Activation and Anti-Tumor Activity of MaaT034
Media Coverage
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MediaNovember 28, 2025: French Tech : Maat Pharma, un anticancer issu du microbiote - BFM Business (French Only) -
MediaOctober 30, 2025: Éric Soyer – Directeur Financier MAAT PHARMA : Stratégie & actualités - Lyon Place Financière (French Only) -
MediaSeptember 22, 2025: Interview of Eric Soyer, CFO at MaaT Pharma - Boursier.com (French Only) -
MediaAugust 7, 2025: French Tech : Maat Pharma traite les complications de greffe de moelle osseuse - BFM Business (French Only) -
MediaJuly 21, 2025: World’s First Hemato-Oncology Microbiota Therapeutic Among Latest New EU Filings - Citeline -
MediaJune 25, 2025: Just the Two of Us: Creating Microbiomes to Fight Cancer, ALS, and More - Inside Precision Medicine
Posters
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PostersKey Results from the CHRONOS Multicentre Retrospective Cohort Study Describing Patient Outcomes in Third-Line Acute Gastrointestinal GvHD -
PostersTHRASSA, A Multicenter, Open-label Study Evaluating The Safety, Tolerability And Efficacy Of MaaT013 In Ruxolitinib-refractory Or Intolerant Paediatric/ Adolescent Participants With Gastrointestinal Acute Graft-versus-Host Disease -
PostersMaaT033 For Gut Microbiota Optimization To Improve Survival After Allogenic HCT: The PHOEBUS Trial -
PostersMaaT013 Pooled Fecal Microbiotherapy Improves Gastrointestinal Physiology And Controls Inflammation Which Delays GvHD In A Proof-Of-Concept Humanized Mouse Study -
PostersMaaT034, a new co-cultured microbiome ecosystem therapy candidate, potentiates anti-PD1 mediated antitumoral activity in germ-free mice -
PostersMaaT034, 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