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M. Takada, M. Fukuoka, M. Kawahara, T. Sugiura, A. Yokoyama, et al., “Phase III Study of Concurrent versus Sequential Thoracic Radiotherapy in Combination with Cisplatin and Etoposide for Limited-Stage Small-Cell Lung Cancer: Results of the Japan Clinical Oncology Group Study 9104,” Journal of Clinical Oncology, Vol. 20, No. 14, 2002, pp. 3054-3060. doi:10.1200/JCO.2002.12.071

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• TITLE: 18FDG-PET/CT Is a Useful Tool in Staging Procedure before Chemo-Radiotherapy in Patients with Limited Disease Small-Cell Lung Cancer. Pattern of Failure and Survival Is Analyzed

  AUTHORS: Anne Winther Larsen, Azza A. Khalil, Peter Meldgaard, Marianne M. Knap

  KEYWORDS: Small-Cell Lung Cancer; Limited Disease; Thoracic Radiotherapy; Positron Emission Tomography; Pattern of Failure

  JOURNAL NAME: Journal of Cancer Therapy, Vol.3 No.4A, September 12, 2012

  ABSTRACT: Background: The purpose of this study was to evaluate the use of 18FDG-PET/CT in staging procedure, the pattern of failure and survival in patients with small-cell lung cancer limited disease (LD-SCLC) undergoing chemo-radiotherapy. Methods: A total of 79 LD-SCLC patients were treated with a combination of chemotherapy and chest radiotherapy. Radiotherapy of the tumour and the pathological lymph nodes was performed either as 45 Gy twice-daily or 46 - 50 Gy once-daily. 18Fluro-2-deoxy-D-glucose (18FDG)-PET/CT was performed in 35 patients as part of the staging procedure. Results: With a median follow-up time of 17 months 6% developed isolated loco-regional failures while 57% developed distant metastases. No isolated regional failures were seen. Median overall survival was 22 months. Patients staged with a 18FDG-PET/CT had a significantly lower incidence of distant failures and a significantly improved overall survival compared with patients only staged with a CT scan (p = 0.03) (median overall survival of 34 versus 17 months, respectively). Conclusion: The pattern of failure showed a high risk of distant metastases but a low incidence of isolated loco-regional failures. Patients staged with an 18FDG-PET/CT had a significantly lower incidence of distant failures and better overall survival, indicating that 18FDG-PET could be beneficial in patients with LD-SCLC before deciding on treatment regimen.