Non-uniform dose/time fractionated radiation therapy and chemotherapy for non-small cell lung cancer.
OBJECTIVE
A Non-uniform Fractionation schedule of large priming doses combined with concurrent chemotherapy and protracted RT was undertaken for the treatment of NSCLC. With several 5-year survivors, this study is reviewed with regard to local control, toxicity, and survival of patients.


METHODS
Forty-two patients with unresectable NSCLC were treated prospectively with initial priming doses followed by large field irradiation to the tumor and regional nodes to 3500 cGy. Patients were given a 1-week break and the treatment was repeated. A total dose of 7000 cGy was delivered over 9 weeks. Thirteen patients (Group A) were treated with RT alone. Twenty-nine patients (Group B) received concurrent chemotherapy; Cisplatin, 100 mg/m2, and 5-FU, 1 g/m2 for 24 h times 5 days. Sixteen patients also received Vinblastine, 3 mg/m2 on a weekly schedule. All patients have been followed more than 5 years.


RESULTS
Overall complete response rate was 36% and partial response rate was 57%. Absolute survival at 2 years was 26% and at 5 years was 14%. Local failure occurred in 28/42 (67%) patients. Late complications included pulmonary fibrosis (3), and osteochondritis (2).


CONCLUSIONS
This approach of high-dose Non-uniform fractionated radiation therapy has yielded an absolute 5-year survival of 14%, which appears better than the long-term results often seen in treatment of NSCL cancer.
Mohiuddin
M
M
Department of Radiation Medicine, A.B. Chandler Medical Center, University of Kentucky, Lexington 40536, USA.
Zeitzer
K L
KL
Moylan
D J
DJ
Yelovich
R M
RM
Rose
L
L
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002289:Carcinoma, Non-Small-Cell Lung / Q000188:drug therapy* / Q000532:radiotherapy*; D002945:Cisplatin / Q000008:administration & dosage; D003131:Combined Modality Therapy; D004334:Drug Administration Schedule; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage; D005500:Follow-Up Studies; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011446:Prospective Studies; D011879:Radiotherapy Dosage; D016019:Survival Analysis; D014747:Vinblastine / Q000008:administration & dosage
D014747:Vinblastine; D002945:Cisplatin; D005472:Fluorouracil