May 1 (Reuters) - Helix Biopharma Corp HBP.TO :
* HELIX BIOPHARMA CORP - L-DOS47 PHASE II RANDOMIZED STUDY ADVANCES TO SECOND COHORT
* HELIX BIOPHARMA CORP - NO SERIOUS ADVERSE EVENTS OR DOSE LIMITING TOXICITIES WERE OBSERVED FROM FIRST DOSING COHORT OF LDOS003 STUDY