Phase II study of lonidamine in patients with metastatic renal cell carcinoma: a National Cancer Institute of Canada Clinical Trials Group Study.

The National Cancer Institute of Canada Clinical Trials Group conducted a phase II study of lonidamine, given in an escalating oral daily schedule in patients with measurable advanced renal cell carcinoma. Two responses were seen in 25 evaluable patients. Toxicity was mild or moderate in most patients and included myalgia, nausea, vomiting, somnolence, and testicular pain. Lonidamine was not myelosuppressive. This agent had only minimal activity against renal cell carcinoma when given in this oral schedule.