"Results from the HEAT Study, one of the largest clinical trials ever conducted in primary liver cancer, reinforce the potential for ThermoDox® in combination with an optimized RFA regimen as a curative treatment for this deadly cancer," said Professor Lencioni. "With median overall survival of more than 6.5 years, or 79 months, data from the HEAT Study post-hoc analysis suggest a greater than two year median survival advantage for treatment with ThermoDox® plus optimized RFA, a meaningful finding given that few treatments are effective in prolonging survival in HCC."
As of July 15, 2015, data from the latest HEAT Study post-hoc overall survival analysis demonstrated that in a large, well bounded subgroup of patients (n=285, 41% of the HEAT Study patients), treatment with a combination of ThermoDox® and optimized RFA provided an average 58% improvement in overall survival compared to optimized RFA alone. The Hazard Ratio (HR) at this analysis was 0.63 (95% CI 0.43 - 0.93) with a p-value of 0.0198. Median overall survival for the ThermoDox® group has been reached, which translates into a 2.1 year survival benefit over the optimized RFA group (79 months for the ThermoDox® plus optimized RFA group versus 53.6 months for the optimized RFA only group).
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The presentations are available on Celsion's website at http://investor.celsion.com/events.cfm.
About The International Liver Cancer Association
The International Liver Cancer Association (ILCA) is the only international organization devoted exclusively to liver cancer research for experts from all related disciplines - medical, interventional and surgical oncology as well as hepatology. ILCA aspires to advance research in the pathogenesis, prevention and treatment of liver cancer.
About Celsion's Phase III OPTIMA Study
Celsion's Phase III OPTIMA Study is a global pivotal, double-blind, placebo-controlled study evaluating ThermoDox®, its proprietary heat-activated liposomal encapsulation of doxorubicin, in combination with optimized radiofrequency ablation (RFA) in HCC. The study is expected to enroll up to 550 patients in over 75 clinical sites in the North America, Europe, China and Asia Pacific, and will evaluate ThermoDox® in combination with optimized RFA, which will be standardized to a minimum of 45 minutes across all investigators and clinical sites for treating lesions three to seven centimeters, versus standardized RFA alone. The primary endpoint for the trial is overall survival, which is supported by post-hoc analysis of data from the Company's 701 patient HEAT Study, where optimized RFA has demonstrated the potential to significantly improve survival when combined with ThermoDox®. The statistical plan for the OPTIMA Study calls for two interim efficacy analyses by an independent Data Monitoring Committee (iDMC).
About Celsion Corporation
Celsion is a fully-integrated oncology company focused on developing a portfolio of innovative cancer treatments, including directed chemotherapies, immunotherapies and RNA- or DNA-based therapies. The Company's lead program is ThermoDox®, a proprietary heat-activated liposomal encapsulation of doxorubicin, currently in Phase III development for the treatment of primary liver cancer and in Phase II development for the treatment of recurrent chest wall breast cancer. The pipeline also includes GEN-1, a DNA-based immunotherapy for the localized treatment of ovarian and brain cancers. Celsion has two platform technologies for the development of novel nucleic acid-based immunotherapies and other anti-cancer DNA or RNA therapies, including TheraPlas™ and TheraSilence™. For more information on Celsion, visit our website: http://www.celsion.com.
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