ERYTECH Pharma (Nasdaq & Euronext: ERYP), a clinical-stage biopharmaceutical company, leader in red blood-cell based cancer therapeutics, announced today that the U.S. Food and Drug Administration (FDA) has granted eryaspase Fast Track designation for the treatment of acute lymphocytic leukemia (ALL) patients who have developed hypersensitivity reactions to E. coli-derived pegylated asparaginase (PEG-ASNase).