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OBJECTIVE: This study was a randomized, multicenter Phase II trial comparing the effect of perioperative implantation of 5-fluorouracil-releasing microspheres followed by early radiotherapy (Arm A) and early radiotherapy alone (Arm B) in patients with gross total resection of high-grade glioma. METHODS: Patients were randomized on clinical and radiological assumption of supratentorial high-grade glioma. All patients underwent surgery, and after resection and histological confirmation, patients randomized to Arm A received multiple injections of microsphere suspension (130 mg of 5-fluorouracil). Conventional fractionated radiotherapy (59.4 Gy) was initiated between the second and the seventh day after surgery for both arms. RESULTS: A total of 95 patients were randomized. Seventy-seven patients were treated and analyzed in intention to treat for efficacy and safety. Overall survival was 15.2 months in Arm A and 13.5 months in Arm B. In the subpopulation of patients with complete resection, overall survival was 15.2 months in Arm A versus 12.3 months in Arm B. However, these differences were not significant. Safety was acceptable with prophylactic high doses of corticosteroids. CONCLUSION: It may be hypothesized that the implantation of 5-fluorouracil-loaded microspheres in the wall of the cavity resection did increase the overall survival, but the present study was not designed and sufficiently powered to demonstrate this.
Meneï et al. (Fri,) studied this question.