Background: Ilmofosine is an ether lipid with antineoplastic activity
in experimental systems. Since there is no established systemic treatm
ent for metastatic renal cell cancer, a trial with this new agent seem
ed to be warranted. Patients and Methods: Patients with measurable met
astatic renal cell cancer without prior systemic treatment received il
mofosine between 150 and 300 mg per day orally until disease progressi
on. Results: There have been no objective responses among the 19 evalu
able patients. Dose-limiting toxicity was gastrointestinal intolerance
. Conclusions: Oral ilmofosine is ineffective in metastatic renal cell
cancer.