Topotecan is an anticancer agent that is used in the treatment of ovarian, cervical and small cell lung cancers. In the product label for intravenous Hycamtin® (topotecan) a variety of doses are prescribed which require as many as five consecutive days of intravenous administration.  The U.S. Food and Drug Administration, or FDA, allowed our Investigational New Drug Application, or IND, in March 2017.