ERYTECH (ERYP) Reports TRYbeCA-1 Phase 3 Trial in 2L Pancreatic Cancer to Continue to Final Analysis

February 8, 2021 5:56 AM EST
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ERYTECH Pharma (NASDAQ: ERYP), a clinical-stage biopharmaceutical company developing innovative therapies by encapsulating therapeutic drug substances inside red blood cells, today announced that TRYbeCA-1, a Phase 3 clinical trial evaluating eryaspase in second-line pancreatic cancer, will continue without modification following a planned interim superiority analysis conducted by an Independent Data Monitoring Committee (IDMC).

The interim analysis was triggered when two-thirds of the total number of events had occurred and allowed the potential for stopping the trial early if the primary endpoint reached statistical significance, adjusting the statistical threshold for the interim review. As with the three previous IDMC reviews, no safety issues have been identified and the Company remains blinded to the primary and secondary endpoint efficacy data. The TRYbeCA-1 trial is fully enrolled and the Company continues to expect the final analysis in the fourth quarter of 2021.

“This IDMC review was the first combined efficacy and safety review. We are pleased that no safety issues were raised.” said Gil Beyen, Chief Executive Officer of ERYTECH Pharma. “The trial will now continue to the final efficacy analysis. With 512 patients enrolled, the trial has approximately 90% power to detect the trial’s design hazard ratio of 0.725. Second-line pancreatic cancer is a devastating disease and remains a large unmet medical need. We are hopeful that TRYbeCA-1 can confirm the survival benefit we observed in the Phase 2b clinical trial and eryaspase can be a potential treatment for these patients. We look forward to sharing final results later this year.”

About TRYbeCA-1

TRYbeCA-1 is a randomized, controlled Phase 3 clinical trial evaluating eryaspase in second-line metastatic pancreatic cancer. The trial has enrolled 512 patients, slightly above the target enrollment of 482 patients, at approximately 90 clinical sites in Europe and the United States. Eligible patients were randomized 1-to-1 to receive eryaspase in combination with standard chemotherapy (gemcitabine/nab-paclitaxel or an irinotecan-based regimen) or chemotherapy alone.

The primary endpoint is overall survival (OS). At the target enrollment of 482 patients, the trial is powered to detect an OS benefit, measured as a hazard ratio (HR), of 0.725 (i.e. a reduction in risk of death rate by 27.5%) with 88% probability. The trial protocol includes one interim efficacy analysis, to be performed by the IDMC upon the accrual of 261 death events, and a final efficacy analysis upon reaching a total of 390 events.

About Pancreatic Cancer

Pancreatic cancer is a disease in which malignant (cancer) cells are found in the tissues of the pancreas. It is a particularly aggressive cancer, with a five-year survival rate below 10%. Pancreatic cancer currently the fourth leading cause of cancer death in the United States and is projected to rise to the second leading cause by 2030.

Every year, approximately 200,000 new cases of pancreatic cancer are diagnosed in the United States and Europe. Approximately half of these patients are diagnosed with metastatic disease for which limited therapeutic options are currently available. Notwithstanding significant efforts, very little innovation has occurred in advanced pancreatic cancer. Chemotherapy remains the main treatment modality. Approximately 40-50% of the patients treated with chemotherapy are eligible for second-line treatment.

About ERYTECH and eryaspase

ERYTECH is a clinical-stage biopharmaceutical company developing innovative red blood cell-based therapeutics for severe forms of cancer and orphan diseases. Leveraging its proprietary ERYCAPS® platform, which uses a novel technology to encapsulate drug substances inside red blood cells, ERYTECH is developing a pipeline of product candidates for patients with high unmet medical needs. ERYTECH’s primary focus is on the development of product candidates that target the altered metabolism of cancer cells by depriving them of amino acids necessary for their growth and survival.

The Company’s lead product candidate, eryaspase, which consists of L-asparaginase encapsulated inside donor-derived red blood cells, targets the cancer cells’ altered asparagine and glutamine metabolism. Eryaspase is in Phase 3 clinical development for the treatment of second-line pancreatic cancer and in Phase 2 for the treatment of triple-negative breast cancer. An investigator sponsored Phase 2 trial in acute lymphoblastic leukemia recently reported positive results, and an investigator sponsored Phase 1 trial in first-line pancreatic is ongoing.

The U.S. Food and Drug Administration (FDA) and the European Medicines Agency granted eryaspase orphan drug status for the treatment of pancreatic cancer and ALL. Eryaspase received Fast Track designation from the FDA for the treatment of second line pancreatic cancer.

ERYTECH produces its product candidates for treatment of patients in Europe at its GMP-approved manufacturing site in Lyon, France, and for patients in the United States at its GMP manufacturing site in Princeton, New Jersey, USA. Eryaspase is not an approved medicine.



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