A Phase I Clinical Trial To Assess The Safety And Efficacy Of Intraperitoneal PV701 Administrations In Patients With Advanced Or Recurrent Malignancy Largely Confined To The Peritoneal Cavity

OBJECTIVES:

• Determine the dose-limiting toxicity and maximum tolerated dose of intraperitoneal PV701 after desensitization in patients with advanced or recurrent malignancy largely confined to the peritoneal cavity these patients.
• Determine the optimal desensitization dose of intravenous PV701 in these patients.
• Determine the safety of this drug, in terms of cumulative toxicity, in these patients.
• Determine, preliminarily, the antitumor activity of this drug in these patients.
• Determine the presence and duration of viral shedding, viremia, and immunogenicity of this drug.

OUTLINE: This is an open-label, dose-escalation study comprising 2 different treatment schedules.

• Schedule I (optimal desensitization dose): Patients receive PV701 IV over 30 minutes on day 1 followed by intraperitoneal (IP) PV701 on days 4, 7, and 9. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.

Cohorts of 3-6 patients receive escalating doses of PV701 IV and IP until the optimal desensitization dose (ODD) is determined. The ODD is defined as the dose preceding that at which at least 2 of 6 patients experience dose-limiting toxicity (DLT).