Galera Therapeutics Announces ASTRO Late-Breaker Presentation of Topline Safety and Efficacy Data from its Double-Blind, Placebo-Controlled Phase 1b/2a Clinical Trial of GC4419 in Combination with SBRT for Locally Advanced Pancreatic Cancer - Seite 2

Avasopasem is currently being studied in the ROMAN trial, a randomized, double blind, placebo-controlled Phase 3 trial of approximately 450 patients (NCT03689712, available at clinicaltrials.gov) to investigate the effects of avasopasem on radiation-induced OM in patients with locally advanced head and neck cancer. In Galera’s 223-patient, double-blind, randomized, placebo-controlled Phase 2b trial in patients with locally advanced head and neck cancer receiving concurrent radiation therapy, avasopasem produced a statistically significant reduction in duration of severe oral mucositis (SOM) from 19 days to 1.5 days (92 percent) in the 90 mg treatment arm. Avasopasem also demonstrated clinically meaningful reductions in SOM incidence through completion of radiation by 34 percent and in the severity of OM (incidence of Grade 4 OM) by 47 percent in the 90 mg treatment arm. The overall adverse event profile of avasopasem in the Phase 2b trial was similar to that of placebo and consistent with the known adverse effects of chemoradiation, with reductions of blood cell counts, particularly low lymphocyte counts, the most prominent adverse effects. Adverse events considered attributable to avasopasem were limited to mild, transient postural light-headedness or decreased blood pressure. Patients were followed for two years after enrollment and showed no difference in tumor outcomes between active and control, consistent with expectations for combinations with intensity-modulated radiation therapy (IMRT)/cisplatin, suggesting that the efficacy of the chemoradiation therapy was not compromised.

Avasopasem is also currently being studied in a Phase 2a trial for its potential to reduce the incidence of radiation-induced esophagitis in patients with lung cancer (NCT04225026, available at clinicaltrials.gov); and completed enrollment in a pilot Phase 1/2 trial (NCT03340974, available at clinicaltrials.gov) in combination with stereotactic body radiation therapy (SBRT) in patients with locally advanced pancreatic cancer.

The U.S. Food and Drug Administration granted Fast Track and Breakthrough Therapy designations to avasopasem for the reduction of SOM induced by radiotherapy.

About Galera Therapeutics

Galera Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on developing and commercializing a pipeline of novel, proprietary therapeutics that have the potential to transform radiotherapy in cancer. Galera’s lead product candidate is avasopasem manganese (GC4419), a highly selective small molecule superoxide dismutase (SOD) mimetic initially being developed for the reduction of radiation-induced severe oral mucositis (SOM). Avasopasem is being studied in the Phase 3 ROMAN trial for its ability to reduce the incidence and severity of SOM induced by radiotherapy in patients with locally advanced head and neck cancer (HNC), its lead indication. It is also being studied in a Phase 2a multi-center trial in Europe assessing the safety of avasopasem in patients with HNC undergoing standard-of-care radiotherapy, a Phase 2a trial for its ability to reduce the incidence of esophagitis induced by radiotherapy in patients with lung cancer and completed enrollment in a pilot Phase 1/2 trial in combination with stereotactic body radiation therapy (SBRT) in patients with locally advanced pancreatic cancer. The FDA granted Fast Track and Breakthrough Therapy designations to avasopasem for the reduction of SOM induced by radiotherapy. Galera is headquartered in Malvern, PA. For more information, please visit www.galeratx.com.