Acetylon's ective histone deacetylase inhibitors to be showcased at 54th ASH annual meeting

Published on November 21, 2012 at 3:35 AM · No Comments

Acetylon Pharmaceuticals Inc., a leader in targeted epigenetic drug discovery and development for enhanced therapeutic outcomes, today announced that its selective histone deacetylase (HDAC) inhibitors will be featured in five posters and one oral presentation at the 54th Annual Meeting of the American Society of Hematology (ASH), taking place December 8-11, 2012, in Atlanta, Georgia. These presentations will highlight three of Acetylon's development programs: ACY-1215, a selective HDAC6 inhibitor currently in two Phase 1b clinical trials for the treatment of relapsed or relapsed/refractory multiple myeloma, preclinical studies of ACY-1215 for the treatment of lymphoma, and a selective HDAC1/2 inhibitor in preclinical studies for sickle cell disease and beta-thalassemia.

"Acetylon is broadening its impact in epigenetic drug discovery and development with the expansion of ACY-1215 into lymphoma and the addition of an HDAC1/2 inhibitor in development for sickle cell disease and beta-thalassemia," said Walter C. Ogier, President and Chief Executive Officer and co-founder of Acetylon. "The lymphoma program is supported by three presentations at ASH from leading academic research groups, who demonstrate ACY-1215's synergistic effects with various other anti-cancer drugs in preclinical studies of lymphoma. The potential ability of ACY-1215 to enhance the activity of multiple anti-cancer drugs in multiple myeloma and lymphoma is highly encouraging for clinical development in these indications."

The details of the presentations are as follows:

Multiple Myeloma

Date: Monday, December 10, 2012
Time: 7:45 am ET (oral presentation)
Location: Thomas Murphy Ballroom 4
Session: 652. Myeloma - Pathophysiology and Pre-Clinical Studies, excluding Therapy: Modulating the Microenvironment in Multiple Myeloma
Abstract #: 328
Title: Role of Selective HDAC6 Inhibition on Multiple Myeloma Bone Disease
Authors Affiliated with the Following Institutions: Massachusetts General Hospital, Duke University, Harvard Medical School, Dana-Farber Cancer Institute, Beth Israel Deaconess Medical Center, Harvard School of Dental Medicine and Acetylon Pharmaceuticals Inc.
Description: In vitro data and the in vivo results from the xenograft models of human multiple myeloma in SCID mice, as well as data in HDAC6 genetic knock-out mice, indicate a potential beneficial role of HDAC6 inhibition on multiple myeloma-related bone disease.

Date: Monday, December 10, 2012
Time: 6:00-8:00 pm ET
Location: Hall B1-B2
Session: 653. Myeloma - Therapy, excluding Transplantation: Poster III
Abstract #: 4061
Title: Rocilinostat (ACY-1215), a Selective HDAC6 Inhibitor, Alone and in Combination with Bortezomib in Multiple Myeloma: Preliminary Results from the First-in-Humans Phase I/II Study
Authors Affiliated with the Following Institutions: Massachusetts General Hospital, Medical College of Wisconsin, University of Pennsylvania Perelman School of Medicine, Mount Sinai School of Medicine, University of Texas MD Anderson Cancer Center, Harvard Medical School, Rho Inc, Emory University and Acetylon Pharmaceuticals Inc.
Description: Preliminary results from this first clinical evaluation of ACY-1215 suggest that selective inhibition of HDAC6 with ACY-1215, alone or in combination with bortezomib and dexamethasone, may provide a well-tolerated treatment option for relapsed or relapsed/refractory multiple myeloma.

Lymphoma

Date: Saturday, December 8, 2012
Time: 5:30-7:30 pm ET
Location: Hall B1-B2
Session: 625. Lymphoma - Pre-Clinical - Chemotherapy and Biologic Agents: Poster I
Abstract #: 1660
Title: Combination of ACY-1215, a Selective Histone Deacetylase 6 (HDAC6) Inhibitor with the Bruton Tyrosine Kinase (BTK) Inhibitor, Ibrutinib, Represents a Novel Therapeutic Strategy in Mantle Cell Lymphoma (MCL)
Authors Affiliated with the Following Institutions: H. Lee Moffitt Cancer Center & Research Institute, Weill Cornell Medical College and Acetylon Pharmaceuticals Inc.
Description: The viability of mantle cell lymphoma (MCL) cells was decreased when they were treated in vitro with either PCI-32765 or ACY-1215. However, combination of these two agents resulted in a 3-fold increase in apoptosis induction, pointing to a synergistic effect of BTK and HDAC6 inhibition in MCL. The additional findings that this approach can increase the immunogenicity of MCL cells and anti-MCL immune responses has provided the proper framework for combining the selective HDAC6 inhibitor ACY-1215 with BTK inhibition as a novel therapeutic strategy in MCL.

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