PVSRIPO for Patients With Unresectable Melanoma

Melanoma Clinical Trial

Official title: A Phase I Trial of PVSRIPO for Patients With Unresectable Melanoma

Status Completed

Clinical Trial Summary

This study is a Phase I study of oncolytic polio/rhinovirus recombinant (PVSRIPO) to primarily characterize the safety and tolerability of PVSRIPO in patients with AJCC Stage IIIB, IIIC, or IV melanoma in a modified 3+3 phase 1 trial design. Lesion biopsies and blood samples will be obtained pre- and post-injection throughout the study for routine histology/molecular genetic testing and immunologic analysis, respectively. Exploratory objectives include describing the response rates of PVSRIPO-injected versus non-injected lesion(s), the number of CD8 positive T cells present in the tumor biopsies before and after injection of PVSRIPO, and after PVSRIPO administration: the pathologic response in tumor biopsies, changes in the tumor microenvironment, and how systemic immune cell populations may change.

Clinical Trial Description

The Primary Objective of the study is to determine the safety profile of PVSRIPO in Stage IIIB, IIIC, and IV recurrent melanoma patients as determined by DLTs by cohort, as well as in those retreated with PVSRIPO, when PVSRIPO is injected intralesionally into 1 to 3 or more cutaneous or subcutaneous lesions. As planned, up to 18 patients may be treated with PVSRIPO.

Biopsy material will be obtained from tumor tissue prior to and following virus administration, which may be subjected to routine histology along with molecular genetic testing and evaluation of pathological response. Whole blood for immunologic analyses will also be collected throughout the study period.

Routine study visits will occur through Day 126. Thereafter, visits will occur every 2-3 months for up to 2 years for subjects who do not progress. For patients with progressive disease, chart review only will occur every 3 months starting at the time of progression.

Patients who previously participated in Cohorts 0 through 3, who in the opinion of the investigator, may benefit from continued PVSRIPO administration, may be eligible to receive additional injections. ;

Related Conditions & MeSH terms

• Melanoma

• NCT number: NCT03712358
• Study type: Interventional
• Source: Istari Oncology, Inc.
• Status: Completed
• Phase: Phase 1
• Start date: November 26, 2018
• Completion date: March 23, 2021