Keros Therapeutics, Inc. · NASDAQ:KROS

Keros Therapeutics — Investor Presentation (November 2020)

27 slides from Keros Therapeutics's investor presentation, Nov 10, 2020

  1. Slide 1: Corporate Presentation November 2020

    Corporate Presentation November 2020

  2. Slide 2: Disclaimer

    Disclaimer Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. Words such as "anticipates," "believes," "expects," "intends," “plans,” “poten

  3. Slide 3: Harnessing the Powerful Biology of the TGF-β Superfamily

    Harnessing the Powerful Biology of the TGF-β Superfamily • Clinical-stage biopharmaceutical company developing novel therapeutics that target the TGF-β superfamily • Approach validated by marketed products, Infuse (BMP2) for spinal fusion and Reblozyl® (modified activin receptor IIB) for treatment o

  4. Slide 4: Keros is Developing Differentiated Clinical Assets in Hematological and Musculoskeletal Disorders

    Keros is Developing Differentiated Clinical Assets in Hematological and Musculoskeletal Disorders Phase of Development Next Program Asset Preclinical Phase 1 Phase 2 Phase 3 Status Milestones* Initiated Phase 2 Initial data: Myelodysplastic syndromes (MDS) clinical trial mid-2021 KER-050 (therapeuti

  5. Slide 5: KER-050

    KER-050 A novel treatment designed to address diseases arising from ineffective hematopoiesis • Myelodysplastic syndromes • Myelofibrosis 5

  6. Slide 6: Myelodysplastic Syndromes (MDS) Overview

    Myelodysplastic Syndromes (MDS) Overview • Hematologic malignancy predominantly affecting the elderly, resulting in multiple cytopenias (anemia, thrombocytopenia, neutropenia) due to ineffective hematopoiesis • 60,000-170,000 MDS patients in U.S.* • 15,000-20,000 newly diagnosed MDS patients in U.S.

  7. Slide 7: KER-050 is a Modified ActRII Fusion Protein

    KER-050 is a Modified ActRII Fusion Protein • Activin receptors are expressed on hematopoietic cells and modulate differentiation of precursor cells • KER-050 is a ligand trap composed of a modified extracellular domain of activin receptor IIA (ActRIIA) fused to the Fc region of human IgG • KER-050

  8. Slide 8: Treatment with RKER-050 Increased Erythropoiesis in Mice

    Treatment with RKER-50 Increased Erythropoiesis by Potentially Promoting Maturation at Multiple Stages and Increased Serum Erythropoietin • In a preclinical study conducted in mice, a single, subcutaneous 10 mg/kg dose of a mouse version of KER-050 (RKER-050) resulted in: • Rapid increase in RBCs •

  9. Slide 9: KER-050 Completed First-in-human Trial

    KER-050 Completed First-in-human Trial • First-in-human trial was designed to explore the safety, tolerability and PK in healthy volunteers with a secondary objective to evaluate changes in PD (hematology and bone biomarkers) • Observed that KER-050 drug levels were dose proportional in Part 1 of th

  10. Slide 10: KER-050 Phase 1 Clinical Trial Recapitulated Learnings from Preclinical Studies

    KER-050 Phase 1 Clinical Trial Recapitulated Learnings from Preclinical Studies • Single, subcutaneous administration of KER-050 in healthy volunteers • Observed rapid increase in red blood cell parameters is supportive of acceleration of maturation of late-stage precursors • Reticulocytes, red bloo

  11. Slide 11: KER-050 Treatment Led to Clinically Meaningful Changes in Platelets

    KER-050 Treatment was Observed to Lead to Clinically Meaningful Changes in Platelets after a Single Dose Mean Change from Baseline in Platelets at Each Dose 60 cells/L cells/L 40 9 30 x 109 cells/L SEM) 20 20 x 109 cells/L ± 0 (Mean (Mean Placebo 0.05 mg/kg -20 0.5 mg/kg Change in Platelets 10 X in

  12. Slide 12: KER-050 has a Potentially Differentiated Mechanism of Action

    KER-050 has a Potentially Differentiated Mechanism of Action • Robust and sustained increases observed in RBCs, hemoglobin and reticulocytes support the potential for administration of monthly or less frequent dosing • Observed sustained response potentially supports the dual mechanism of promoting

  13. Slide 13: Initiated a Phase 2 Trial of KER-050 in MDS

    Initiated a Phase 2 Trial of KER-050 in MDS Part 1: Dose Escalation Part 2: Dose Confirmation • Open label Phase 2 trial in two parts to explore (Open Label) (Open Label) changes in hematology with treatment in patients with MDS Dose 1 • Red blood cell parameters • Platelets Dose 2 • 12-week treatme

  14. Slide 14: Myelofibrosis (MF) is Characterized by Ineffective Hematopoiesis

    Myelofibrosis (MF) is Characterized by Ineffective Hematopoiesis • Molecular abnormalities in JAK-STAT pathway result in expansion of RBC and platelet precursors and subsequent ineffective hematopoiesis 16,000-18,500 • Megakaryocyte accumulation/breakdown is implicated in the inducement of bone Prev

  15. Slide 15: KER-047

    KER-047 A novel treatment designed to address: • Anemia resulting from iron imbalance • Iron deficiency anemia • IRIDA • Fibrodysplasia ossificans progressiva (FOP) 15

  16. Slide 16: KER-047: A Potentially Potent and Selective ALK2 Inhibitor

    KER-047: A Potentially Potent and Selective ALK2 Inhibitor • Small molecule inhibitor of the activin receptor-like kinase-2 KER-047 (ALK2) kinase domain • Potency: Low nanomolar IC50 • Selectivity: Highly selective over kinases outside of the TGF- superfamily as well as other, structurally similar

  17. Slide 17: ALK2 Regulates Hepcidin and Iron Homeostasis

    ALK2 Regulates Hepcidin and Iron Homeostasis • ALK2 signaling in the liver controls hepcidin expression, a hormone that controls iron homeostasis • Excessive ALK2 signaling results in high hepcidin and a shortage of iron availability for RBC production • ALK2 signaling requires BMP ligand and the co

  18. Slide 18: Keros ALK2 Inhibitors Shown to Resolve Anemia in the Mouse Model of IRIDA

    Keros ALK2 Inhibitors Shown to Resolve Anemia in the Mouse Model of IRIDA Mouse IRIDA Model Protocol Timeline • TMPRSS6 encodes MT-2, the protease that suppresses ALK2 signaling • MT-2/TMPRSS6 deficiency results in IRIDA • siRNA knockdown of TMPRSS6 in mice mimics changes seen in human IRIDA Mouse I

  19. Slide 19: KER-047: Expanded Phase 1 Clinical Trial Recapitulated Preclinical Observations

    KER-047: Expanded Phase 1 Clinical Trial Recapitulated the Observations from Preclinical Studies • All single ascending and multiple ascending dose cohorts evaluated (including additional cohort) (“expanded trial”) • The objective of the Phase 1 clinical trial was to evaluate the safety, tolerabilit

  20. Slide 20: Phase 2 Trials to Provide Proof-of-Concept for Anemia from Iron Imbalance

    Phase 2 Trials to Provide Proof-of-Concept for Treatment of Anemia Resulting from Iron Imbalance, Including IDA and IRIDA Iron Deficiency Anemia IRIDA • KER-047 is designed to re-establish normal iron • KER-047 is designed to normalize high hepcidin homeostasis by mobilizing iron out of tissues, lev

  21. Slide 21: ALK2 Mutation is a Driver of FOP

    ALK2 Mutation is a Driver of FOP • FOP is a rare genetic disease in which muscles and connective tissues transform into bone • No cure or effective treatments • Most patients are confined to a wheelchair by third decade of life • Typical life expectancy – 40 years • Caused by single amino acid mutat

  22. Slide 22: KER-012

    KER-012 A preclinical program designed to address • Bone loss disorders such as osteoporosis and osteogenesis imperfecta • Pulmonary arterial hypertension (PAH) 22

  23. Slide 23: KER-012: Preclinical Product Candidate

    KER-012: Preclinical Product Candidate • Proprietary selective activin receptor ligand trap in preclinical development for the treatment of pulmonary arterial hypertension (PAH) and bone disorders • In preclinical studies, KER-012: • Demonstrated high affinity for, and potent inhibition of, ligands

  24. Slide 24: Keros Summary

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  25. Slide 25: We Believe Keros is Positioned for Clinical and Commercial Success

    We Believe Keros is Positioned for Clinical and Commercial Success • Keros is focused on the development of novel TGF- therapeutics • Robust biology that has been validated in the clinic • Keros is well-positioned to harness the potential of the TGF- superfamily • ActRII program (KER-050) is in a

  26. Slide 26: Anticipated Key Milestones

    Anticipated Key Milestones* KER-050 • Present additional preclinical data on mechanism Q4 2020 (ASH 2020) • Announce initial data for Phase 2 trial in MDS Mid-2021 • Initiate Phase 2 trial in myelofibrosis 2021 KER-047 • Present Phase 1 healthy volunteer data Q4 2020 (ASH 2020) • Initiate Phase 2 tr

  27. Slide 27: Thank You

    eee ee elit’ peat eatin’ Thank You ' BAQUUOURIY t Menus

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