ZKN-013 in development for treatment of recessive dystrophic epidermolysis bullosa (RDEB) and junctional epidermolysis bullosa (JEB)

Additional IND filing for ZKN-013 for treatment of familial adenomatous polyposis (FAP) expected in first half of 2023

Recent preclinical results have provided additional support for ZKN-013 in RDEB and FAP

WATERTOWN, MA, USA I March 28, 2023 I Eloxx Pharmaceuticals, Inc. (NASDAQ: ELOX), a leader in ribosomal RNA-targeted genetic therapies for rare diseases, today announced the submission of an Investigational New Drug (IND) application with the U.S. Food and Drug Administration for ZKN-013 for the treatment of recessive Dystrophic Epidermolysis Bullosa (RDEB) with nonsense mutations. RDEB is a rare skin disease characterized by mutations in Collagen7 gene.

“This IND application is an important milestone towards providing a treatment option for patients with RDEB and JEB, as there are currently no approved disease-modifying treatments,” said Sumit Aggarwal, President and Chief Executive Officer of Eloxx. “We look forward to advancing ZKN-013, our lead TURBO-ZM™ based molecule, into clinical development, as we believe it has the potential to have a positive impact on the treatment of these two painful and debilitating diseases.”

Recent preclinical results demonstrated read-through activity of ZKN-013 in multiple COL7 genotypes across multiple RDEB patient derived fibroblasts and keratinocytes. Read-through activity resulted in up to an 18-fold increase in full-length COL VII protein levels. Prolonged treatment with ZKN-013 further increased COL VII protein levels. Functionality of the restored full-length COL VII protein was confirmed. These results have been accepted for presentation at an upcoming medical conference.

An additional IND filing for ZKN-013 for the treatment of familial adenomatous polyposis (FAP) is planned in the first half of 2023. FAP, a rare inherited disease with no approved drug therapies, is characterized by proliferation of colon polyps. Eloxx is targeting a subset of patients that have nonsense mutations in the Adenomatous Polyposis Coli (APC) gene that is truncated in these patients.

In January 2023, Eloxx published positive results from a study in the APCMin (multiple intestinal neoplasia) model evaluating the potential of ZKN-013 to treat FAP. The APCMin mouse is a translationally validated model for drug development for FAP. In the APCMin model, treatment with ZKN-013 demonstrated a decrease in intestinal polyps and adenomas, resulting in increased survival. The publication also included in vitro and in vivo demonstrating that ZKN-013 inhibited the growth of human colon carcinoma cells with APC nonsense mutations, and promoted read through of premature stop codons in the APC gene, leading to functional restoration of full-length APC protein.

About Eloxx Pharmaceuticals

Eloxx Pharmaceuticals, Inc. is engaged in the science of ribosome modulation, leveraging its innovative TURBO-ZMTM chemistry technology platform in an effort to develop novel Ribosome Modulating Agents (RMAs) and its library of Eukaryotic Ribosome Selective Glycosides (ERSGs). Eloxx’s lead investigational product candidate, ELX-02, is a small molecule drug candidate designed to restore production of full-length functional proteins. The U.S. Food and Drug Administration (FDA) has granted Fast Track designation for ELX-02 for the treatment of CF patients with nonsense mutations. In addition, ELX-02 has also been granted Orphan Drug Designation for the treatment of CF patients with nonsense mutations by the FDA and orphan medicinal product designation by the European Commission. ELX-02 is in clinical development, focusing on cystic fibrosis (US Trial NCT04135495, EU/IL Trial NCT04126473). Eloxx also has preclinical programs focused on select rare diseases, including inherited diseases, cancer caused by nonsense mutations, kidney diseases, including autosomal dominant polycystic kidney disease, as well as rare ocular genetic disorders.

For more information, please visit www.eloxxpharma.com.

SOURCE: Eloxx Pharmaceuticals