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Preoperative chemotherapy for osteogenic sarcoma: selection of postoperative adjuvant chemotherapy based on the response of the primary tumor to preoperative chemotherapy.

Abstract：

:Since June 1978, 57 patients with primary osteogenic sarcoma of an extremity were treated with high-dose methotrexate (HDMTX) and citrovorum factor rescue (CFR), Adriamycin, and the combination of bleomycin, cyclophosphamide and dactinomycin (BCD) given for 4-16 weeks prior to definitive surgery. Histologic examination of the resected primary tumor determined the effect of preoperative chemotherapy with many primary tumors showing greater than 90% tumor necrosis attributable to preoperative chemotherapy. All patients having this favorable effect of chemotherapy on the primary tumor were continued on the same chemotherapy regimen postoperatively (regimen B). However, in those patients not having a good effect of preoperative chemotherapy on the primary tumor, HDMTX with CFR was subsequently deleted from their postoperative chemotherapy and they were placed on a regimen containing cisplatinum at the dose of 120mg/M2 with mannitol diuresis combined with Adriamycin in addition to BCD (regimen A). In the current study, 35 of the 57 patients did not demonstrate a good effect of chemotherapy on the primary tumor and were assigned to regimen A postoperatively. Of these 35 patients, 32 (91%) have remained continuously free of recurrent or metastatic disease from 6-34 months following the start of therapy. Among the 22 remaining patients having a good histologic response and treated with regimen B postoperatively, there has been only one relapse in a patient who had a local recurrence in the area of an inadequately resected primary tumor three months after the cessation of chemotherapy. Thus, 53 of 57 patients (93%) are continuously with no evidence of recurrent or metastatic disease from 6-35 months (median, 20 months) from the start of treatment. This study demonstrates the value of thorough histologic examination in predicting survival in responding patients and in helping identify patients whose disease-free survival rate can be substantially increased if they are given alternative postoperative adjuvant chemotherapy after failing to have a good response to preoperative chemotherapy. This individualized chemotherapeutic strategy has yielded the highest disease-free survival rate reported to date for osteogenic sarcoma.

journal_name

Cancer

journal_title

Cancer

authors

Rosen G,Caparros B,Huvos AG,Kosloff C,Nirenberg A,Cacavio A,Marcove RC,Lane JM,Mehta B,Urban C

doi

10.1002/1097-0142(19820315)49:6<1221::aid-cncr2820

subject

Has Abstract

pub_date

1982-03-15 00:00:00

pages

1221-30

issue

eissn

0008-543X

issn

1097-0142

journal_volume

pub_type

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Preoperative chemotherapy for osteogenic sarcoma: selection of postoperative adjuvant chemotherapy based on the response of the primary tumor to preoperative chemotherapy.