Study of NS-9 in Patients With Liver Metastases

This study is to investigate the safety of NS-9 and to see how well it is tolerated in patients with cancer that has metastasized (spread) to the liver from another primary tumor. NS-9 is a drug developed to go to the liver to cause cell death specifically in tumor cells. This study is also set up to determine the best dose to use.

This study requires subjects to undergo 2 treatment cycles of NS-9. Each cycle consists of once daily, 1-hour I.V. infusions of the drug for 5 days followed by a 23-day rest period. During the rest period, subjects are seen at the clinic once weekly for evaluation. Subjects having favorable or stable results after 2 cycles may continue to receive NS-9 in the extension phase of the study until the disease progresses or until they get a side effect that prevents them from continuing with therapy. After each two cycles, if appropriate, the liver tumor will be measured by radiologic imaging to compare it to its pre-treatment size.