The purpose of this study is to determine whether patients with advanced cancers who receive AVR118 solution for injection into the skin can achieve improvement in quality of life. Based on a study in patients with AIDS, possible benefits may include improved appetite and strength; weight gain; improved mood; and decreased fatigue. For the first three weeks, some patients receive AVR118, and others receive placebo (an injection expected to have no benefits). After three weeks, all patients will be offered the opportunity to take injections of AVR118.