title: Effectiveness of activated vitamin D3 on improving prognosis of osteosarcoma patients.
abstract: We examined the survival prognosis of patients with osteosarcoma after orally administering the active form of vitamin D3, 1alpha (OH) D3 (alphaD3). The 29 patients, ranging in age from 9 to 58 years (mean, 19 years), with osteosarcoma were treated in our department between 1983 and 1995. The surgical stage was IIB in all patients. Among the 29 patients, alphaD3 was administered to 18 patients, and the remaining 11 patients served as controls. These patients underwent chemotherapy mainly with adriamycin and cisplatin, and wide tumor resection. In the alphaD3-treated group, the 5- or 10-year survival rate was 61.1%, while in the untreated group, the 5-year survival rate was 63.6%, and 10-year survival rate was 33.9%. Prognosis of the patients treated with alphaD3 tended to be better than that of untreated patients, but there was no significant difference in the survival rate between the groups (p=0.3823). The survival rate in the group treated with a total dose of alphaD3 more than 1,500 microg was also higher than that in the untreated group, but the difference was not significant (p=0.0740). Therefore, we concluded that alphaD3 at the dose used in this study was not effective in improving the prognosis of osteosarcoma patients.
authors.affiliation: Department of Orthopaedic Surgery, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nozaki
authors.forename: K
authors.initials: K
authors.lastname: Kusuzaki
authors.forename: H
authors.initials: H
authors.lastname: Takeshita
authors.forename: S
authors.initials: S
authors.lastname: Nakamura
authors.forename: S
authors.initials: S
authors.lastname: Hashiguchi
authors.forename: H
authors.initials: H
authors.lastname: Murata
authors.forename: Y
authors.initials: Y
authors.lastname: Hirasawa
mesh_terms: D000293:Adolescent; D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001859:Bone Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000601:surgery*; D002112:Calcifediol / Q000627:therapeutic use*; D002648:Child; D002945:Cisplatin / Q000008:administration & dosage; D003131:Combined Modality Therapy; D004317:Doxorubicin / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000188:drug therapy* / Q000401:mortality / Q000601:surgery*; D011379:Prognosis; D015996:Survival Rate; D013997:Time Factors
chemical_list: D004317:Doxorubicin; D002112:Calcifediol; D002945:Cisplatin