Interferon-Beta Gene Transfer (Ad.hIFN-β) as Treatment for Refractory Colorectal Carcinoma With Liver Metastases

This trial is a clinical research study of Ad.hIFN-β, an investigational, replication-defective, recombinant adenovirus containing the human interferon beta gene, for people that have refractory colorectal carcinoma with liver metastases. Scientists have been exploring a variety of approaches to develop medications to treat patients with refractory colorectal carcinoma with liver metastases; a disease for which current treatment provides only limited relief, so there is a need for new medications.