Purpose: The purpose of this study is to test the safety of the GL-ONC1 vaccinia virus at different dose levels. The investigators want to find out what effects, good and/or bad, it has on the patient and the malignant pleural effusion. A malignant pleural effusion is a build up of fluid in the chest cavity cause by the cancer.
- Arms: Experimental: GL-ONC1
- This is an open-label, dose-escalating, non-randomized, single-center phase I study to determine the dose recommended for further evaluation of the genetically modified vaccinia virus GL-ONC1 when administered intrapleurally as a single dose to patients with malignant pleural effusion.
- Assigned Interventions:
- Biological: GL-ONC1. Patients will be enrolled in groups of three and individually assessed for safety and dose limiting toxicity (DLT).