title: Carboplatin and etoposide followed by once-daily thoracic radiotherapy in limited disease small-cell lung cancer: unsatisfactory results.
abstract: OBJECTIVE
  There has been a trend to replace cisplatin with carboplatin in the treatment of small-cell lung carcinoma. The goal of the present study was to determine the efficacy of carboplatin and etoposide followed by thoracic radiotherapy in patients with previously untreated limited disease small-cell lung carcinoma.
  
  
  METHODS
  From February 2001 to March 2007, 47 patients with limited disease small-cell lung cancer were enrolled in the study. Etoposide, 100 mg/m2, was administrated intravenously on days 1-3 in combination with carboplatin, AUC 6, on day 1 every 21 days for 6 cycles. In cases considered to have non-progressive disease following induction chemotherapy, thoracic radiotherapy was given with in a once daily fraction of 2.0 Gy, 5/wk, up to 50-60 Gy.
  
  
  RESULTS
  Forty-one patients were evaluated. Median age was 62 (range, 40-78), 88% of patients were male. ECOG PS was 0-1 in 38 patients. Seven of the 41 patients (17.5%) had pleural effusion (one malignant) and 7 patients (17.5%) had involved supraclavicular lymph nodes. Ninety percent of patients had elevated serum lactate dehydrogenase levels. Median follow-up was 13.5 mo. A total of 209 cycles of chemotherapy was administered (median, 6; range, 1-6). Thoracic irradiation was given to 33 patients. The overall response rate to combined modality on an intention-to-treat basis was 73%. Median survival time was 13.7 months (95% CI, 10.3-17.1), and median progression-free survival was 9.5 months (95% CI, 8.6-10.4). Two- and four-year overall survival was 23% and 7%, respectively. Grade 3-4 neutropenia and leukopenia were the most common adverse events and occurred in 46.0% and 24.0% of the patients, respectively. Six (14%) patients experienced febrile neutropenia. Three patients (7%) died of sepsis and neutropenic fever. Non-hematological toxicities were mild.
  
  
  CONCLUSIONS
  Carboplatin and etoposide chemotherapy followed by thoracic radiotherapy in LD-SCLC appears to be unsatisfactory.
authors.affiliation: Department of Pulmonary Medicine, Suat Seren Chest Disease and Surgery Training and Research Hospital, Izmir, Turkey. drufukyilmaz@ekolay.net
authors.forename: Ufuk
authors.initials: U
authors.lastname: Yilmaz
authors.forename: Ceyda
authors.initials: C
authors.lastname: Anar
authors.forename: Esra
authors.initials: E
authors.lastname: Korkmaz
authors.forename: Sena
authors.initials: S
authors.lastname: Yapicioglu
authors.forename: Ilker
authors.initials: I
authors.lastname: Karadogan
authors.forename: Serdar
authors.initials: S
authors.lastname: Ozkök
mesh_terms: D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D016190:Carboplatin / Q000008:administration & dosage / Q000009:adverse effects; D018288:Carcinoma, Small Cell / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000401:mortality; D018572:Disease-Free Survival; D005047:Etoposide / Q000008:administration & dosage / Q000009:adverse effects; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D013902:Radiography, Thoracic
chemical_list: D005047:Etoposide; D016190:Carboplatin