Evaluating the Role of Interdigitated Neoadjuvant Chemotherapy and Radiation in the Management of High-Grade Soft-Tissue Sarcoma: The Johns Hopkins Experience

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Abstract

Objectives:

High-grade soft-tissue sarcoma (STS) has a poor prognosis. The goal of this study was to review treatment outcomes of patients with high-grade STS treated with interdigitated neoadjuvant chemotherapy (CT) and radiation at our institution.

Materials and Methods:

Patients with high-grade STS (1997 to 2010) were planned for treatment with 3 cycles of neoadjuvant CT, interdigitated preoperative radiation therapy (44 Gy administered in split courses with a potential 16 Gy postoperative boost), and 3 cycles of postoperative CT. Cancer control outcomes at 3 years were analyzed.

Results:

Sixteen patients with high-grade STS were evaluated. Median age was 53 years, the median longest tumor diameter was 14.6 cm, and median follow-up was 33 months. All 16 patients received 2 or 3 cycles of neoadjuvant CT and all patients completed neoadjuvant RT. The estimated 3-year rate for local control was 100%, disease-free survival 62.5%, and overall survival 73.4%.

Conclusions:

Patients with high-grade STS treated with interdigitated neoadjuvant CT and radiation before surgical resection had excellent rates of local control, along with disease-free survival and overall survival similar to previously published reports. This combined-modality approach continues to have a role in the treatment of patients with high-grade STS.

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