Talaris Therapeutics Inc.

• US
• Talaris Therapeutics Inc.
• Health-Care

TALS

We are a late-clinical stage, cell therapy company developing an innovative method of allogeneic hematopoietic stem cell transplantation (allo-HSCT) that we believe has the potential to transform the standard of care in solid organ transplantation, certain severe autoimmune diseases and certain severe non-malignant blood, immune and metabolic disorders. In the organ transplant setting, which is our initial focus, we believe our proprietary therapeutic approach, which we call Facilitated Allo-HSCT Therapy, could prevent organ rejection without the morbidity and mortality that has been associated with the use of lifelong anti-rejection medicines, also known as chronic immunosuppression. Beyond the organ transplant setting, our Facilitated Allo-HSCT Therapy also has the potential to treat a range of severe autoimmune diseases and severe non-malignant blood, immune and metabolic disorders, in each case with potential for similar outcomes to what has previously been observed with HSCT, while mitigating the toxicities, morbidities and extended hospital stay associated with the conditioning regimen typically required by HSCT. We believe that our target indications, individually and collectively, represent a significant unmet need and commercial opportunity.

Our lead product candidate, FCR001, which is central to our Facilitated Allo-HSCT Therapy, is a novel allogeneic cell therapy comprised of stem and immune cells that are procured from a healthy donor, who is also the organ donor in the case of organ transplantation. FCR001 is rapidly processed in our GMP facility using our proprietary manufacturing methods. Then, at the time of transplant, FCR001 is administered to the recipient following nonmyeloablative conditioning, which is designed to be less toxic than myeloablative conditioning. A fully myeloablative conditioning regimen consists of a combination of agents and high doses of total body irradiation that destroy hematopoietic stem cells (HSCs) in the bone marrow and results in profound depletion of HSC-derived cells within one to three weeks following administration that is irreversible, and in most instances is fatal unless rescued by a stem cell transplant. The nonmyeloablative conditioning for FCR001 entails lower doses of chemotherapy and total body irradiation, causes less depletion of blood cells and does not require stem cell support for the recipient to resume the production of blood cells and platelets. We do not outsource any key aspect of our cell processing. We are developing FCR001 as a pipeline-in-a-product with the potential to address the therapeutic areas described above.

We are currently enrolling patients in FREEDOM-1, a randomized, controlled, open-label Phase 3 registration trial in the United States of FCR001 in 120 adult living donor kidney transplant (LDKT) recipients. The goal of this trial is to evaluate the potential of FCR001, when administered the day after the kidney transplant, to induce durable, drug-free immune tolerance in the recipient of the transplanted kidney. Inducing durable immune tolerance to a transplanted organ without the morbidities associated with lifelong immunosuppression is a goal that has been broadly referred to in the transplant field as the “Holy Grail” of solid organ transplant. The primary endpoint of FREEDOM-1 is the demonstration that the lower end of our confidence interval of FCR001 patients free from chronic immunosuppression and without biopsy-proven acute rejection (BPAR) at 24 months post-transplant. The secondary endpoint is to evaluate the change in renal function as measured by estimated glomerular filtration rate (eGFR), which estimates how much blood passes through the filters in the kidney that remove waste from the blood, from post-transplant baseline (month one) to month 24 in FCR001 recipients. 
 

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