MaaT Pharma has dosed first patient in a phase 2 clinical trial of its lead microbiome restoration candidate, MaaT013, in patients with steroid-resistant acute Graft-versus-Host-Disease (SR-aGvHD).
aGvHD is a leading cause of death following an allogeneic stem cell transplant due to the transplanted immune cells attacking the patient’s tissues. It results in a very dismal outcome and poor overall survival in patients not responding to first line therapy as there are no second-line treatments available.
MaaT013 is differentiated by its high microbial diversity and richness that can restore the patient’s functional microbiome with the goal of re-establishing homeostasis.
MaaT Pharma co-founder and CEO Hervé Affagard said: “The dosing of the first patient in our clinical trial, called HERACLES, marks an important milestone in MaaT Pharma’s objective to improve survival outcomes in patients undergoing allogeneic stem cell transplantation.
“Our strategy is to demonstrate that re-establishing healthy microbial networks in the gut can restore patient-microbiome symbiosis, which improves the patient’s ability to recover and increase their chance of survival.”
The clinical trial HERACLES is a prospective multi-center study in four European countries to include patients that have received a first-line standard treatment of corticosteroids following allogeneic hematopoietic stem cell transplantation.
The enema formulation MaaT013, developed through the MaaT Microbiome Restoration Biotherapeutic (MMRB) platform, will be administered at Day 2, 9 and 16 of the 28-day treatment period.
The primary endpoint of the study is to achieve gastro-intestinal and overall GvHD response by day 28 post-inclusion. Patient follow-up will be done 6 months and 12 months after inclusion.
HERACLES trial international coordinator professor Mohamad Mohty said: “The diversity and complex interactive networks in the microbial ecosystem within the patient are greatly compromised during the occurrence of severe aGvHD and restoring it has the potential to achieve therapeutic impact on survival.
“An accumulating body of evidence is corroborating our approach and we look forward to further validating the concept in this controlled European study.”
MaaT013 is the off-the-shelf, reproducible, enema formulation manufactured using MaaT Pharma’s integrated MaaT Microbiome Restoration Biotherapeutic (MMRB) platform.
The product has a stability of up to 18 months and is characterized by a high diversity and richness of microbial species derived from pooled healthy donors and manufactured at the company’s centralized European cGMP production facility. MaaT013 has been granted Orphan Drug Designation by the US Food and Drug Administration (FDA) and is already being administered in compassionate use.
Source: Company Press Release.