The investigator is looking for patients who have been diagnosed with stage 1-4 cancer to enroll in a five year Quality of Life clinical trial study in which the participant has previously elected to use Insulin Potentiation Targeted Low Dose (IPTLD) as a means to treat their illness. This study is a quality of life study and not a treatment study. Participants participating in the study will be asked to complete quality of life questionnaires. The questionnaires completed by the patients will measure mood, energy level, ability to function, level of pain, and other measures that indicate how a patient feels about the quality of their daily living.