Magenta Therapeutics, Inc.

Heidelberg Pharma Research Gmbh

Vor Biopharma Inc.

Crispr Therapeutics Ag

Edigene Biotechnology Inc.

Anthony Boitano

Rahul Palchaudhuri

Sean McDonough

Michael Cooke

Bradley R Pearse

Michael P Cooke

Rajiv Panwar

Dwight Morrow

Adam Hartigan

Patrick C Falahee

Matthew Duncan Smith

Kevin A Goncalves

Megan D Hoban

Jonathan Philip Belk

Jacob Glanville

Paul Fredrick Widboom

Patricia Ann Cruite

Geoffrey O Gillard

Jennifer Lynn Proctor

Charlotte Fenton McDonagh

Hillary Adams

Disclosed are methods and compositions relating to the treatment of autoimmune diseases using anti-CD45 antibody drug conjugates (ADCs).

Methods and compositions for treating autoimmune diseases

The invention provides methods of using allogeneic cells in therapy by combining allogeneic cell therapy with anti-CD137 antibody drug conjugates (ADCs). Disclosed are methods of treating or preventing a host versus graft (HvG) rejection in a human subject receiving allogeneic cell therapy by administering to the human subject an anti-CD137 ADC.

Use of anti-CD137 antibody drug conjugate (ADC) in allogeneic cell therapy

Disclosed are anti-CD45 antibodies and antibody drug conjugates (ADCs) useful in therapeutic methods, including targeting CD45 expressing hematopoietic stem cells (HSCs) or immune cells prior to transplantation.

Anti-CD45 antibodies and conjugates thereof

The invention provides anti-CD5 antibodies, antigen-binding fragments thereof, and antibody drug conjugates thereof, for use in treating, for example, a stem cell disorder, cancer, or autoimmune disease, among other hematological and proliferative diseases. Compositions and methods for depleting populations of CD5+ cells, such as CD5+ cancer cells and CD5+ immune cells are described, and can be used to treat cancers and autoimmune diseases directly as stand-alone therapies by eradicating cancerous cells and autoreactive immune cells that express CD5 and/or to prepare a patient for hematopoietic stem cell transplantation, for instance, by depleting populations of CD5+ immune cells that cross-react with, and mount an immune response against, non-self hematopoietic stem cells.

Compositions and methods for the depletion of CD5+ cells

Disclosed are anti-CD45 antibodies, antigen binding fragments thereof, and antibody drug conjugates (ADCs) that specifically bind to human CD45. Such antibodies and ADCs are useful in therapeutic methods, including methods of depleting CD45+ cells from a patient. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD45+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy, and to improve the engraftment of hematopoietic stem cell transplants, by selectively depleting endogenous CD45+ cells prior to the transplant procedure.

The invention provides methods of depleting CD5+ cells in human patients undergoing chimeric antigen receptor (CAR) immunotherapy in order to promote acceptance of CAR expressing immune cells. Anti-CD5 antibody drug conjugates (ADCs) are administered as a conditioning regimen to a human patient receiving autologous or allogeneic CAR expressing immune cells such that the CAR expressing immune cells are accepted by the human patient. Compositions and methods of the invention can be used in combination with CAR therapy to treat a variety of pathologies, including autoimmune diseases and cancer.

Use of anti-CD5 antibody drug conjugate (ADC) in allogeneic cell therapy

The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, e.g., acute myeloid leukemia (AML) and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.

Compositions and methods for the depletion of CD117+ cells

The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.

Anti-CD117 antibodies and conjugates

The invention provides compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a donor, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the compositions and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various stem cell disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. In certain embodiments, the compositions and methods described herein lead to the mobilization of a population of CD34cells that have immunosuppressive effects and that can reduce the incidence of graft vs. host disease.

Dosing regimens for the mobilization of hematopoietic stem and progenitor cells

The invention provides methods of preventing and treating graft-versus-host-disease and autoimmune diseases, such as those arising from transplant therapy, by selective depletion of hematopoietic cells through the use of antibody-drug conjugates and ligand-drug conjugates that specifically bind CD137. The compositions and methods described herein can be used to treat a variety of pathologies, including stem cell disorders and other blood conditions.

Compositions and methods for the depletion of CD137+ cells

Described herein are compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a subject, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the composition and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others.

Growing community of inventors

Newton, MA, United States of America

Anthony Boitano