Omega Therapeutics Announces Clinical Supply Agreement to Evaluate the Combination of OTX-2002 & Atezolizumab in Hepatocellular Carcinoma

Omega Therapeutics, Inc. recently announced a clinical supply agreement with Roche to evaluate OTX-2002, its lead candidate in development for the treatment of MYC-driven hepatocellular carcinoma (HCC), in combination with Roche’s anti-PD-L1 therapy, atezolizumab, as part of Omega’s Phase 1/2 MYCHELANGELO I clinical trial.

“This agreement with Roche represents continued execution of our clinical trial strategy and the next step toward realizing the transformative potential of OTX-2002, a first-in-class epigenomic controller designed to pre-transcriptionally downregulate the MYC oncogene, a historically undruggable target,” said Mahesh Karande, President and Chief Executive Officer of Omega Therapeutics. “In preclinical studies, OTX-2002 demonstrated synergistic antitumor activity with existing standard of care therapies for HCC, including anti-PD-1 and anti-PD-L1 immune checkpoint inhibitors, with minimal impact on safety and tolerability. Through the combination of two orthogonal treatments, OTX-2002 and atezolizumab, a leading anti-PD-L1 therapy, we aim to simultaneously disrupt multiple drivers of cancer progression with the goal of improving treatment outcomes. With Roche’s support and partnership, we look forward to assessing the ability of this novel combination approach to enhance antitumor immune response in patients with advanced HCC.”

The ongoing Phase 1/2 MYCHELANGELO I trial is designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity of OTX-2002 as a monotherapy (Part 1) and in combination with standard of care therapies (Part 2), in patients with relapsed or refractory HCC and other solid tumor types known for association with the MYC oncogene. Preliminary data from the Phase 1 monotherapy dose escalation portion of the study are anticipated in 2023.

Under the terms of this agreement, Roche will supply atezolizumab and Omega will evaluate the combination as part of the overall conduct of the trial.

OTX-2002 is a first-in-class Omega Epigenomic Controller in development for the treatment of hepatocellular carcinoma (HCC). OTX-2002 is a programmable epigenetic mRNA therapeutic delivered via lipid nanoparticles (LNPs) and is designed to downregulate MYC expression pre-transcriptionally through epigenetic modulation while potentially overcoming MYC autoregulation. MYC is a master transcription factor that regulates cell proliferation, differentiation and apoptosis and plays a significant role in more than 50% of all human cancers. OTX-2002 is currently being evaluated in the Phase 1/2 MYCHELANGELO I trial in patients with relapsed or refractory HCC and other solid tumor types known for association with the MYC oncogene; visit clinicaltrials.gov (NCT05497453) for more details.

Omega Therapeutics, founded by Flagship Pioneering, is a clinical-stage biotechnology company pioneering the development of a new class of programmable epigenetic mRNA medicines. The company’s OMEGA platform harnesses the power of epigenetics, the mechanism that controls gene expression and every aspect of an organism’s life from cell genesis, growth, and differentiation to cell death. Using a suite of technologies, paired with Omega’s process of systematic, rational, and integrative drug design, the OMEGA platform enables control of fundamental epigenetic processes to correct the root cause of disease by returning aberrant gene expression to a normal range without altering native nucleic acid sequences. Omega’s modular and programmable mRNA medicines, Omega Epigenomic Controllers (OECs), target specific epigenomic loci within insulated genomic domains, EpiZips, from amongst thousands of unique, mapped, and validated genome-wide DNA sequences, with high specificity to durably tune single or multiple genes to treat and cure diseases through unprecedented precision epigenomic control. Omega’s approach enables pre-transcriptional control of most human genes including historically undruggable, intractable, and difficult to treat targets. Omega’s pipeline of OEC candidates spans a range of disease areas, including oncology, regenerative medicine, multigenic diseases including immunology, and select monogenic diseases. For more information, visit omegatherapeutics.com.