While most focal drug delivery research is still in the preclinical stage, the field's frontrunner, Celsion Corporation, has requested FDA permission to launch U.S. clinical trials of its investigational liposome-encapsulated drug, ThermoDox. Conducted in partnership with Philips Healthcare, those studies will investigate the use of ThermoDox in focused ultrasound-mediated drug delivery treatments for patients with metastatic bone cancer. Read more.