Complex sentence: There are several new clinical trials in the works that are offering hope to patients and their families, one being dendritic cell immunotherapy which uses the patient's tumor cells and white blood cells to produce a chemotherapy that directly attacks the tumor.
Split into simpler sentences: There are several new clinical trials in the works that are offering hope to patients and their families. One such trial being dendritic cell immunotherapy which uses the patient's tumor cells and white blood cells to produce a chemotherapy that directly attacks the tumor.