that results in dramatic regression and elimination of a wide range of solid tumors in animals without damaging healthy tissues or organs. GL-ONC1 encodes Green Fluorescent Protein (GFP) to enable highly selective imaging of tumors and metastases as an aid in the diagnosis and staging of cancer. GL-ONC1 is currently under evaluation in Phase I/II human clinical trials in the United States and Europe, and additional US and European-based trials are set to begin in the near future. GL-ONC1 is proving well-tolerated with minimal side effects and showing early signs of anti-tumor activity.