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Amgen To Discuss Details Of The Biologics License Application For Talimogene Laherparepvec For Patients With Metastatic Melanoma
At the meeting,
"The incidence of melanoma, the most serious form of skin cancer, has continued to rise over the last 30 years, even as many other cancers are in decline," said
Talimogene laherparepvec is an investigational oncolytic immunotherapy designed to selectively replicate in tumors (but not normal tissue) and to initiate an immune response to target cancer cells that have metastasized. Talimogene laherparepvec was designed to work in two important and complementary ways. First, it is injected directly into tumors where it replicates inside the tumor's cells causing the cell to rupture and die in a process called lysis. Then, the rupture of the cancer cells can release tumor-derived antigens, along with granulocyte-macrophage colony-stimulating factor (GM-CSF), which can stimulate a system-wide immune response where white blood cells are able to seek out and target cancer that has spread throughout the body.
According to the
OPTiM Study Design and Results
Study 005/05, referred to as
In the 436-patient study, talimogene laherparepvec significantly improved DRR with 16.3 percent of talimogene laherparepvec patients achieving a complete response (CR) or partial response (PR) within the first 12 months of treatment and maintaining it continuously for at least six months compared to 2.1 percent of patients treated with GM-CSF (p <0.001).
- Improved overall (CR + PR) response rate compared with GM-CSF, 26.4 percent vs. 5.7 percent, respectively. In particular, the CR rate was higher in the talimogene laherparepvec arm than in the GM-CSF arm (10.8 percent vs. 0.7 percent, respectively).
- A strong trend in overall survival (OS). The median OS was 4.4 months longer in the talimogene laherparepvec arm than in the GM-CSF arm (hazard ratio: 0.79; p=0.051).
- Evidence of a systemic effect. Eight of 71 patients (11.3 percent) with visceral lesions that could not be injected (predominately in the lung and liver) had an overall decrease in those lesions of more than 50 percent.
The most commonly reported treatment-related adverse events were fatigue, chills, pyrexia, nausea, influenza-like illness, and injection-site pain. Most adverse reactions reported were mild or moderate in severity and generally resolved within 72 hours. The most common serious adverse reaction was cellulitis.
Forward Looking Statements
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No forward-looking statement can be guaranteed and actual results may differ materially from those we project. Discovery or identification of new product candidates or development of new indications for existing products cannot be guaranteed and movement from concept to product is uncertain; consequently, there can be no guarantee that any particular product candidate or development of a new indication for an existing product will be successful and become a commercial product. Further, preclinical results do not guarantee safe and effective performance of product candidates in humans. The complexity of the human body cannot be perfectly, or sometimes, even adequately modeled by computer or cell culture systems or animal models. The length of time that it takes for us and our partners to complete clinical trials and obtain regulatory approval for product marketing has in the past varied and we expect similar variability in the future. We develop product candidates internally and through licensing collaborations, partnerships and joint ventures. Product candidates that are derived from relationships may be subject to disputes between the parties or may prove to be not as effective or as safe as we may have believed at the time of entering into such relationship. Also, we or others could identify safety, side effects or manufacturing problems with our products after they are on the market. Our business may be impacted by government investigations, litigation and product liability claims. If we fail to meet the compliance obligations in the corporate integrity agreement between us and the U.S. government, we could become subject to significant sanctions. We depend on third parties for a significant portion of our manufacturing capacity for the supply of certain of our current and future products and limits on supply may constrain sales of certain of our current products and product candidate development.
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The scientific information discussed in this news release related to our product candidates is preliminary and investigative. Such product candidates are not approved by the
American Cancer Society. Cancer Facts & Figures 2014. http://www.cancer.org/cancer/skincancer-melanoma/detailedguide/melanoma-skin-cancer-key-statistics. Accessed April 13, 2015.
American Cancer Society. Melanoma Skin Cancer. http://www.cancer.org/cancer/skincancer-melanoma/detailedguide/melanoma-skin-cancer-survival-rates. Accessed April 13, 2015.
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