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2008:
Forsyth Peter; Roldán Gloria; George David; Wallace Carla; Palmer Cheryl Ann; Morris Don; Cairncross Gregory; Matthews Maureen Vallee; Markert James; Gillespie Yancey; Coffey Matt; Thompson Brad; Hamilton Mark
A phase I trial of intratumoral administration of reovirus in patients with histologically confirmed recurrent malignant gliomas.
Molecular therapy : the journal of the American Society of Gene Therapy 2008;
16(
3):.
Reovirus is an oncolytic virus with activity in in vivo models of malignant gliomas (MGs). The primary aims were to determine the dose-limiting toxicity (DLT) and maximum tolerated dose (MTD) of intratumoral administration of reovirus in patients with recurrent MGs. Response, survival, and time to progression (TTP) were secondary aims. Patients were adults, had Karnofsky Performance score > or = 60, received prior radiotherapy with or without chemotherapy, and had up to the third recurrence of MG. Reovirus was administered intratumorally stereotactically at 1 x 10(7), 1 x 10(8), or 1 x 10(9) tissue culture infectious dose 50 (TCID50) in a volume of 0.9 ml. Twelve patients were treated at three dose levels (3, 6, and 3 patients, respectively). Seven were men, median Karnofsky Performance score was 80, and median age was 53.5 years. There were no grade III or IV adverse events (AEs) definitely or probably related to treatment. Ten patients had tumor progression, one had stabilization, and one was not evaluable for response. Median survival was 21 weeks (range, 6-234), and one is alive 54 months after treatment. Median TTP was 4.3 weeks (range, 2.6-39). An MTD was not reached. The intratumoral administration of the genetically unmodified reovirus was well tolerated using these doses and schedule, in patients with recurrent MG.
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