Adjuvant adriamycin and cisplatin in newly diagnosed, nonmetastatic osteosarcoma of the extremity.

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Abstract
Twenty-two patients with newly diagnosed nonmetastatic osteosarcoma of the extremity were treated with an adjuvant chemotherapeutic regimen consisting of Adriamycin (Adria Laboratories, Columbus, Ohio), and cisplatin. Fourteen of the 22 patients remain continuously disease free for 65+ to 113+ months, with a median time on study of 70+ months. The 72-months disease-free survival estimate is 64%. Pulmonary metastases occurred in six patients, an isolated stump recurrence was seen in one patient, and one patient had a local recurrence following a limb-salvage procedure. For those patients in whom pulmonary metastases developed, the onset was late in three of six, and the number of metastases was three or fewer in all patients. Two patients with pulmonary metastases and one with a stump recurrence have apparently been salvaged, thus resulting in a 77% 72-month survival. Toxicity observed in patients treated with this regimen was in keeping with previous reports. This chemotherapeutic regimen is effective in the adjuvant therapy of nonmetastatic osteosarcoma of the extremity. It should be incorporated into other adjuvant protocols in an effort to continue to improve the outcome in patients with osteosarcoma.