"The strength of the preclinical and clinical data to date reinforces our confidence in the potential of ThermoDox in HCC and for a successful trial outcome," stated Michael H. Tardugno, Celsion's chairman, president and chief executive officer. "We are extremely encouraged with the investigators' interest and enthusiasm for our approach. With the trial enrolling patients in 13 countries, and in 9 of up to 20 sites in the Peoples Republic of China, we remain focused on the efficient execution of the only active Phase III study in newly diagnosed HCC patients."

The OPTIMA Study
OPTIMA, a pivotal, double-blind, placebo-controlled Phase III clinical trial, is expected to enroll up to 550 patients at up to 75 sites in the North America, Europe, China and Asia Pacific. As of June 2016, the study has been successfully enrolling patients at more than 50 clinical sites in 13 different countries in North America, Europe and Asia Pacific. In December 2015, Celsion announced that it had received a Clinical Trial Application (CTA) approval from the China Food and Drug Administration (CFDA) to conduct the OPTIMA Study at up to 20 additional clinical sites in China, the country where approximately 50% of the 850,000 new cases of primary liver cancer are diagnosed each year and where the Company aims to enroll more than 200 patients in the China territory, the minimum number required by the CFDA to file a New Drug Application (NDA), assuming positive clinical results.
The primary endpoint for the OPTIMA Study is overall survival (OS). The statistical plan calls for two interim efficacy analyses by an independent Data Monitoring Committee (iDMC). The design of the OPTIMA Study is supported by the retrospective analysis of a large subgroup of 285 patients in the Company's previous 701 patient HEAT Study in primary liver cancer. The study is also designed to establish a clear path to approval in major liver cancer markets worldwide, with results from the OPTIMA Study, if successful, providing the basis for a global registration filing and marketing approval.

About LTLD (ThermoDox®)
Celsion's most advanced program is a heat-mediated, tumor-targeting drug delivery technology that employs a novel heat-sensitive liposome engineered to address a range of difficult-to-treat cancers. The first application of this platform is ThermoDox®, a lyso-thermosensitive liposomal doxorubicin (LTLD), whose novel mechanism of action delivers high concentrations of doxorubicin to a region targeted with the application of localized heat at 40°C, just above body temperature. In one of its most advanced applications, LTLD, when combined with radiofrequency thermal ablation (RFA), has the potential to address a range of cancers. For example, RFA in combination with ThermoDox® has been shown to expand the "treatment zone" with a margin of highly concentrated chemotherapy when treating individual primary liver cancer lesions. The goal of this application is to significantly improve efficacy.

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