A Safety Study of Two Intratumoural Doses of Coxsackievirus Type A21 in Melanoma Patients (PSX-X03)

Summary

The purpose of the study is to determine the safety and tolerability of two doses of Coxsackievirus A21, administered 48 hours apart into a superficial melanoma tumour. Injected and non-injected tumours will be observed regarding change in tumour size. Coxsackievirus A21 (CVA21) is a naturally occurring virus, that is known to cause self limiting upper respiratory infections. CVA21 has been shown in cell culture to infect and kill human melanoma cancer cell lines. This property of CVA21 is due to the specific receptors CVA21 uses in order to attach to, and infect a cell. The 2 receptors CVA21 uses to infect a cell are Intracellular Adhesion Molecule 1 (ICAM-1) and Decay Accelerating Factor. Both of these surface proteins are expressed on melanoma cell lines as well as human melanoma tumours. Animal models of human melanoma tumours have demonstrated that CVA21 injection either intratumour or intravenous causes infection in the tumours, resulting in reduction of tumour size and growth.

Timeline

Start

2007-05-16

Primary completion

2009-08-28

Completion

2009-08-28

Publications

• Background Shafren DR, Au GG, Nguyen T, Newcombe NG, Haley ES, Beagley L, Johansson ES, Hersey P, Barry RD. Systemic therapy of malignant human melanoma tumors by a common cold-producing enterovirus, coxsackievirus a21. Clin Cancer Res. 2004 Jan 1;10(1 Pt 1):53-60. doi: 10.1158/1078-0432.ccr-0690-3.
• Background Au GG, Lindberg AM, Barry RD, Shafren DR. Oncolysis of vascular malignant human melanoma tumors by Coxsackievirus A21. Int J Oncol. 2005 Jun;26(6):1471-6. doi: 10.3892/ijo.26.6.1471.

Drugs

Indications