Remission of disseminated cancer after systemic oncolytic virotherapy.

Russell, Stephen J; Federspiel, Mark J; Peng, Kah-Whye; Tong, Caili; Dingli, David; Morice, William G; Lowe, Val; O'Connor, Michael K et al. · Mayo Clin Proc · 2014

case_report · Level V

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Abstract

MV-NIS is an engineered measles virus that is selectively destructive to myeloma plasma cells and can be monitored by noninvasive radioiodine imaging of NIS gene expression. Two measles-seronegative patients with relapsing drug-refractory myeloma and multiple glucose-avid plasmacytomas were treated by intravenous infusion of 10(11) TCID50 (50% tissue culture infectious dose) infectious units of MV-NIS. Both patients responded to therapy with M protein reduction and resolution of bone marrow plasmacytosis. Further, one patient experienced durable complete remission at all disease sites. Tumor targeting was clearly documented by NIS-mediated radioiodine uptake in virus-infected plasmacytomas. Toxicities resolved within the first week after therapy. Oncolytic viruses offer a promising new modality for the targeted infection and destruction of disseminated cancer.

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