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Comparative Study
. 2011 Apr;82(2):211-6.
doi: 10.3109/17453674.2011.566141. Epub 2011 Mar 24.

Results of the Scandinavian Sarcoma Group XIV Protocol for Classical Osteosarcoma: 63 Patients With a Minimum Follow-Up of 4 Years

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Free PMC article
Comparative Study

Results of the Scandinavian Sarcoma Group XIV Protocol for Classical Osteosarcoma: 63 Patients With a Minimum Follow-Up of 4 Years

Sigbjørn Smeland et al. Acta Orthop. .
Free PMC article

Abstract

Background and purpose: The Scandinavian Sarcoma Group (SSG) XIV protocol is based on experience from previous SSG trials and other osteosarcoma intergroup trials, and has been considered the best standard of care for patients with extremity localized, non-metastatic osteosarcoma. We analyzed the outcome in 63 consecutive patients. Patients and methods From 2001 through 2005, 63 patients recruited from centers in Sweden, Norway, and Finland were included. They received preoperative chemotherapy consisting of 2 cycles of paired methotrexate (12 g/m²), cisplatin (90 mg/m²), and doxorubicin (75 mg/m²). 3 cycles were administered postoperatively, and poor histological responders were given 3 additional cycles of ifosfamide (10-12 g/m²) as a salvage strategy.

Results: With a median follow-up of 77 months for survivors, the estimated metastasis-free and sarcoma-related survival at 5 years was 70% and 76%, respectively. 53 patients were treated with limb salvage surgery or rotationplasty and 2 patients experienced a local recurrence. 3 toxic deaths were recorded, all related to acute toxicity from chemotherapy. The 5-year metastasis-free survival of poor histological responders receiving add-on treatment with ifosfamide was 47%, as compared to 89% for good histological responders.

Interpretation: Outcome from the SSG XIV protocol compares favorably with the results of previous SSG trials and other published osteosarcoma trials. However, salvage therapy given to poor responders did not improve outcome to a similar degree as for good responders. In a multi-institutional setting, more than four-fifths of the patients were operated with limb salvage surgery or rotationplasty, with few local recurrences.

Figures

Figure 1.
Figure 1.
Outline of treatment in the SSG XIV protocol.
Figure 2.
Figure 2.
Sarcoma-related (red) and metastasis-free (green) survival (n = 63).

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