Shares of biotech company Celsion (CLSN -7.34%) soared 10% in intraday trading after the company announced an agreement with Chinese drugmaker Zhejiang Hisun Pharmaceutical. With phase 3 clinical trial results for the company's flagship drug, ThermoDox, due to be released before the end of the month, this announcement has added a new dimension to this stock's story. In this video, our health care analysts Max Macaluso and Brenton Flynn break down the details of this agreement and discuss what investors must watch in the coming days.