Viral Therapy in Treating Young Patients With Relapsed or Refractory Solid Tumors

Unspecified Childhood Solid Tumor, Protocol Specific Clinical Trial

Official title: A Phase 1 Dose Escalation Study of Reolysin, a Replication Competent Reovirus, in Pediatric Patients With Relapsed or Refractory Solid Tumors

Status Completed

Clinical Trial Summary

This phase I trial studies the side effects and the best dose of viral therapy in treating young patients with solid tumors that have come back or that have not responded to standard therapy. Some tumors have cells with a genetic weakness that makes them unable to fight off a virus called wild-type reovirus. The virus causes cells with this weakness to die, and may therefore be able to kill tumor cells without damaging normal cells. Cyclophosphamide is a drug used in chemotherapy that stops tumor cells from dividing and causes them to die. Giving wild-type reovirus together with cyclophosphamide may kill more tumor cells.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. To estimate the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of REOLYSIN (wild-type reovirus) administered as an intravenous infusion daily for 5 days, every 28 days to children with relapsed or refractory solid tumors.

II. To define and describe the toxicities of Reolysin in these patients. III. To define the toxicity and tolerability of combining Reolysin with oral cyclophosphamide in these patients.

IV. To characterize the pharmacokinetics (time course of viral clearance) of Reolysin in children with refractory cancer.

SECONDARY OBJECTIVES:

I. To define the antitumor activity of Reolysin within the confines of a phase I study.

II. To evaluate the development of neutralizing antibodies to Reolysin following intravenous administration of Reolysin alone and in combination with cyclophosphamide.

III. To assess the biologic activity of Reolysin.

OUTLINE: This is a dose-escalation study of wild-type reovirus.

Patients receive wild-type reovirus intravenously (IV) over 60 minutes once daily (QD) on days 1-5. Some patients also receive cyclophosphamide orally (PO) on days 1-21. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up periodically for up to 1 year. ;

Study Design

Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Unspecified Childhood Solid Tumor, Protocol Specific

• NCT number: NCT01240538
• Study type: Interventional
• Source: National Cancer Institute (NCI)
• Status: Completed
• Phase: Phase 1
• Start date: December 2010