Colorectal Cancer Metastatic Clinical Trial
Official title:
In-Situ Cancer Vaccine: Phase IIA, Open-Label Study to Assess the Safety of AlloStim® Immunotherapy Alone and in Combination With Cryoablation as Third Line Therapy for Metastatic Colorectal Cancer
This is a single center, open label dose frequency escalation study of CryoVax®. personalized anti-tumor vaccine protocol combining the cryoablation of a selected metastatic lesion with intra-lesional immunotherapy with AlloStim®. The in-situ (in the body) cancer vaccine step combines killing a single metastatic tumor lesion by use of cryoablation in order to cause the release of tumor-specific markers to the immune system and then injecting bioengineered allogeneic immune cells (AlloStim®) into the lesion as an adjuvant in order to modulate the immune response and educate the immune system to kill other tumor cells where ever they reside in the body.
Colorectal cancer (CRC) ranks as the third most common cancer worldwide. Metastasis is the main reason of death in CRC patients. The current drugs used to treat colorectal cancer provide important treatment options for patients, their limitations including drug resistance, poor efficacy and severe side effects. Development of new therapeutic strategies for KRAS mutant as well as BRAF mutant tumors are therefore highly needed in order to offer a new category of drug (immunotherapy). This study targets the population of mCRC patients that have progressed after two lines of chemotherapy and are not eligible for targeted therapies. The study will assess six different dosing schedules. A standard 3 plus 3 study design will be used. The starting frequency for each dosing schedule will be escalated in subsequent groups of patients. The study will evaluate safety of increased frequency of AlloStim® dosing and anti-tumor effect of the new proposed dose and frequency schedule. ;
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