NantKwest Inc. shares rose by a record after the company’s CEO said its experimental cancer therapy had shown a dramatic result in one patient with pancreatic cancer. In an interview with Bloomberg Television, Chief Executive Office Patrick Soon-Shiong said one patient with metastatic pancreatic cancer had their tumors eradicated after treatment with the company’s experimental immune-system-based therapy. The patient had previously been treated unsuccessfully, and received the drug as a compassionate measure for people without other treatment options.