Press release

Menlo Park, CA

Orca Bio to Present New Clinical Data on Orca-T at the 63rd American Society of Hematology Annual Meeting

Oral and poster presentations will include one-year follow-up data from an expanded group of patients and an analysis of treatment outcomes in patients with myelofibrosis

MENLO PARK, CA, November 4, 2021 – Orca Bio, a clinical-stage biotechnology company developing purified, high-precision cell therapies for cancer, autoimmune and genetic blood disorders, today announced that new data will be presented from a single-center Phase 2 trial and a multi-center Phase 1b trial at the American Society of Hematology (ASH) Annual Meeting. Specifically, pooled data from patients treated with Orca-T, an investigational high-precision cell therapy product being studied in patients with hematologic malignancies, will be shared in an oral presentation. Additionally, results of Orca-T in a subset of patients with myelofibrosis from those same trials will be shared in a poster presentation. “Our clinical experience with Orca-T has grown significantly over the past year and we are pleased to present data on an expanded group of patients who now have one year of follow-up with Orca-T,” said Ivan Dimov, Ph.D., cofounder and chief executive officer of Orca Bio. “We look forward to presenting these important findings at ASH as we continue to work to deliver on our promise of maximizing patient survival while minimizing the compromise of toxicities to enable better outcomes.” The ASH abstracts are now available at www.hematology.org. Details of the Orca Bio presentations follow: Oral Presentation: Orca-T Results in High GVHD-Free and Relapse-Free Survival Following Myeloablative Conditioning for Hematological Malignancies: Results of a Single Center Phase 2 and a Multicenter Phase 1b Study Abstract Number: 98 Session: 722. Allogeneic Transplantation: Acute and Chronic GVHD, Immune Reconstitution: Prevention of graft vs. host disease after allogeneic hematopoietic cell transplantation Presentation Date: Saturday, December 11, 2021, at 9:45 AM EST Location: Georgia World Congress Center, B302-B303 Poster Presentation: Outcomes for Myelofibrosis Patients Following Myeloablative Allogeneic Stem Cell Transplantation Using the Orca-T Graft from HLA-Matched Related and Unrelated Donors Abstract Number: 1819 Session: 722. Allogeneic Transplantation: Acute and Chronic GVHD, Immune Reconstitution: Poster I Presentation Date: Saturday, December 11, 2021, at 5:30 PM – 7:30 PM EST Location: Georgia World Congress Center, Hall B5

“We look forward to presenting these important findings at ASH as we continue to work to deliver on our promise of maximizing patient survival while minimizing the compromise of toxicities to enable better outcomes.”

Ivan Dimov, Ph.D., cofounder and chief executive officer of Orca Bio.

About Orca Bio


Orca Bio is a late-stage biotechnology company developing purified, high-precision cell therapies for the treatment of cancer, autoimmune diseases and genetic blood disorders. Our investigational therapies are designed to deliver better survival rates with dramatically fewer risks than the standard of care. At Orca Bio, we hope to not only replace patients' blood and immune systems with healthy ones, but restore their quality of life. For more information, visit www.orcabio.com and follow Orca Bio on Twitter: @orcabio.



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