title: A preliminary report of neoadjuvant chemotherapy NSH-7 study in osteosarcoma: preoperative salvage chemotherapy based on clinical tumor response and the use of granulocyte colony-stimulating factor.
abstract: Eleven patients with high-grade osteosarcoma of an extremity were treated with neoadjuvant chemotherapy with NSH-7 protocol. NSH-7 is a refinement of the T-12 Rosen protocol. Preoperative chemotherapy is initiated with a doxorubicin (ADM) and high-dose methotrexate combination. If the primary tumor progresses after the first cycle, the preoperative chemotherapy is switched to a combination of cisplatin and ADM. Postoperative adjuvant chemotherapy was selected based on histological response of the primary tumor. In addition, recombinant human granulocyte colony-stimulating factor was used to prevent leukocytopenia and to increase the dose intensity of the chemotherapy. In 1 patient, preoperative chemotherapy was switched to salvage treatment. Of the 156 courses given, there were 10 delays and 4 dose reductions. Leukocytopenia accounted for only 1 delay. All 11 patients completed the chemotherapy and 5 patients were fully able to tolerate the protocol without delay or dose reduction. Nine patients remained alive and continuously free of disease at an average follow-up of 35 months. The rate of continuous disease-free survival at 3 years was 81%, which was significantly better than that of the T-12 study of our group. These observations suggest that the NSH-7 protocol is a safe and effective treatment regimen for osteosarcoma.
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Wada
authors.forename: K
authors.initials: K
authors.lastname: Isu
authors.forename: N
authors.initials: N
authors.lastname: Takeda
authors.forename: M
authors.initials: M
authors.lastname: Usui
authors.forename: S
authors.initials: S
authors.lastname: Ishii
authors.forename: S
authors.initials: S
authors.lastname: Yamawaki
mesh_terms: D000293:Adolescent; D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D001859:Bone Neoplasms / Q000188:drug therapy* / Q000601:surgery*; D017024:Chemotherapy, Adjuvant; D002648:Child; D002945:Cisplatin / Q000008:administration & dosage; D003131:Combined Modality Therapy; D004305:Dose-Response Relationship, Drug; D004317:Doxorubicin / Q000008:administration & dosage; D004334:Drug Administration Schedule; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D016179:Granulocyte Colony-Stimulating Factor / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage; D012516:Osteosarcoma / Q000188:drug therapy* / Q000601:surgery*; D011300:Preoperative Care; D016879:Salvage Therapy
chemical_list: D016179:Granulocyte Colony-Stimulating Factor; D004317:Doxorubicin; D002945:Cisplatin; D008727:Methotrexate