On March 9, 2026 MaaT Pharma (EURONEXT: MAAT – the "Company"), a clinical-stage biotechnology company and a leader in the development of Microbiome Ecosystem TherapiesTM (MET) dedicated to enhancing survival for patients with cancer through immune modulation, reported that clinical data and updates from key programs within its hemato‑oncology pipeline will be presented at the 2026 EBMT Annual Meeting, taking place March 22–25, 2026 in Madrid, Spain.

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An oral presentation, scheduled during the Presidential Plenary Session, will detail the final results, including overall survival data, from the Company’s lead asset MaaT013, which is currently under review by the European Medicines Agency (EMA) following the submission of a Marketing Authorization Application in June 2025.

In addition, MaaT Pharma will present three poster communications, featuring:

Key results from CHRONOS, a multicenter retrospective cohort study describing real‑world outcomes in third‑line acute gastrointestinal GvHD, and
The study designs of two clinical trials (PHOEBUS and THRASSA – pediatric study announced in March 2025) advancing the Company’s therapeutic pipeline.
With this broad clinical data presentation at the 2026 EBMT Annual Meeting, MaaT Pharma reaffirms its position in hemato‑oncology across the full care continuum of HCT and its commitment to improving outcomes for patients undergoing allogeneic transplantation.

During this year’s Congress, Clinigen, MaaT Pharma’s strategic commercial partner for MaaT013’s Early Access Program and commercialization in Europe pending EMA approval, will host a dedicated symposium on Advancing Management of Steroid Refractory aGvHD with GI Involvement: From Unmet Need to a Potential Third Line Option. MaaT013 is currently under regulatory review and not yet approved.

The symposium will be chaired by Florent Malard, MD, PhD, hematology professor at Saint-Antoine Hospital and Sorbonne University and Fabio Ciceri, MD, PhD, Associate Professor of Hematology, University Vita-Salute San Raffaele. It will also feature renowned hematology experts such as Zinaida Peric, MD, hematologist University of Rijeka (Croatia); Chair, GvHD Subcommittee, Transplant Complications Working Party, EBMT, Ernst Holler, Professor at University Medical Center Regensburg (Germany) and Jaime Sanz, MD, hematologist and coordinator of the Bone Marrow Transplant Unit at the University Hospital La Fe in Valencia (Spain). The details of the Symposium are below:

Title: Advancing Management of Steroid Refractory aGvHD with GI Involvement: From Unmet Need to a Potential Third Line Option
Date: Sunday, March 22, 2026
Time: 12:30 – 14:00 CET
Room: N101–102
Professor Malard will also speak at a workshop session dedicated to the Current state of microbiota transplantation in allogeneic HCT, independently from any activities related to the Company, on Monday, March 23, 2026, from 11:00am – 11:20am CET in Velazquez location (W02 Workshop | GVHD beyond immunosuppression – Regulation, repair, and innovation).

EBMT abstracts are now available at www.ebmt.org. Details of the MaaT Pharma presentations are as follow:

Oral presentation:

Title: MaaT013 for Ruxolitinib-Refractory Acute Graft-versus-Host Disease with Gastrointestinal Involvement: Final Results from the ARES Phase III Trial
Abstract number: GS2-8
Session: GS2 Presidential Symposium
Session Date/Time: Monday, March 23, 2026 – 17:33 – 17:42 CET
Location: VELAZQUEZ
Presenter: Prof. Florent Malard, MD, PhD, hematology professor at Saint-Antoine Hospital and Sorbonne University and ARES Trial lead investigator
Poster Presentations:

PHOEBUS

Title: MaaT033 for Gut Microbiota Optimization To Improve Survival after Allogeneic HCT: the Phoebus Trial
Abstract number: A093
Session: Transplant and Cellular Therapies – Clinical
Session Date/Time: Monday, March 23, 2026 – 18:00 – 19:00 CET
Location: VELAZQUEZ
Presenter: Prof. Florent Malard, MD, PhD, hematology professor at Saint-Antoine Hospital and Sorbonne University and PHOEBUS Trial lead investigator
CHRONOS

Title: Key results from CHRONOS, a multicenter retrospective cohort study describing real-world outcomes in third-line acute gastrointestinal GvHD
Abstract number: B005
Session: Graft-versus-Host Disease – Clinical
Session Date/Time: Tuesday, March 24, 2026 – 18:00 – 19:00
Location: VELAZQUEZ
Presenter: Johannes Clausen, MD, hematologist at Ordensklinikum Linz Elisabethinen, Hematology Department, Linz, Austria
THRASSA

Title: THRASSA, 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
Abstract number: P222
Session: Paediatrics – Clinical
Session Date/Time: Sunday, March 22, 08:30 – 18:00 CET
Location: e-Poster area
Presenter: Marion Bruelle, Clinical Scientist at MaaT Pharma

(Press release, MaaT Pharma, MAR 9, 2026, View Source [SID1234663368])