A 6 week double blind study to compare the effects of the investigational new drug (PF-06946860) and a placebo on appetite and to find out how participants with advanced cancer and anorexia feel after receiving repeated doses injected under the skin (subcutaneously).
During the initial 6-week treatment period (Part A), a total of 2 doses of study drug or placebo will be administered 3 weeks apart. Each dose contains two injections. Part B is an optional 18-week open-label treatment period where up to 7 doses of study drug may be administered. Part B does not include placebo.
Assessments include:
* Measure the impact of the study drug on appetite, fatigue, and pain questionnaires
* Body weight measurements
* Blood samples to evaluate safety and additional endpoints including the amount of the study drug in the blood and the effects of the study drug on levels of a specific cytokine.
