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M..R. Garcia-Campelo



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    P1.08 - Poster Session/ Thymoma, Mesothelioma and Other Thoracic Malignancies (ID 224)

    • Event: WCLC 2015
    • Type: Poster
    • Track: Thymoma, Mesothelioma and Other Thoracic Malignancies
    • Presentations: 1
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      P1.08-015 - Malignant Pleural Mesothelioma: Observational and Retrospective Analysis of Spanish Database (BEMME). The Spanish Lung Cancer Group (SLCG) (ID 2355)

      09:30 - 09:30  |  Author(s): M..R. Garcia-Campelo

      • Abstract
      • Slides

      Background:
      Malignant Pleural Mesothelioma (MPM) is a rare but aggressive malignancy of the pleura, with a strong causal link to asbestos exposure. Although in Spain asbestos was banned in 2002, it is estimated that occupationally related deaths due to MPM will continue to occur until 2040. BEMME (Base Epidemiológica Mesotelioma Maligno en España) is an observational and retrospective study sponsored by the Spanish Lung Cancer Group that aimed to characterize the patient’s and tumour’s features as well as the treatment modalities of patients diagnosed with mesothelioma in Spain.

      Methods:
      Clinical records of patients with malignant pleural and peritoneal mesothelioma were retrospectively reviewed to collect epidemiological data, diagnostic tests, treatment modalities and survival data into an electronic and anonymous database. Thirty-five Spanish hospitals participated in the project and 570 mesothelioma patients were included in the BEMME database. Here we present a descriptive analysis of MPM patients based upon these data.

      Results:
      From January 2008 to December 2013, 538 patients (p) had MPM. Most patients were males (77%) and 74% of patients were ≥ 60 years (60-70y: 33%, >70y: 41%). Most patients (49%) had a performance status 1 at diagnosis. Only 32% of patients were recorded as positive for asbestos exposure and 77% of patients were never-smokers. Dyspnoea (35%) and thoracic pain (26%) were reported as the most frequent symptoms at diagnosis. Epithelioid was the most frequent histological subtype (63%), followed by sarcomatoid (12%), biphasic (8%) and not specified (17%). Disease stages at diagnosis were: stage I, 7%; stage II, 9%; stage III, 17%; stage IV, 45%; not specified, 22%. Surgery was performed in 41p: extrapleural neumonectomy 16p, extended pleurectomy 15p and partial pleurectomy 10p. Palliative pleurodesis was performed in 22% of patients. A total of 70% of patients received chemotherapy (55% palliative, 11 neoadjuvant and 6% adjuvant). The median overall survival (OS) for all patients was 13.2 months (95% CI 12.2 – 15.2). There were no statistically significant differences in OS according to age, gender and asbestos exposure. In the univariate analysis, higher stage (III-IV vs. I-II, p=0.0003) and non-epithelioid subtype (non-epithelioid vs. epithelioid, p=0.00001) were significantly associated with shorter OS.

      Conclusion:
      In Spain, most MPM patients are diagnosed at advanced stages and are treated with palliative modalities: mainly chemotherapy and pleurodesis. Stage and histologic subtype were prognostic factors for survival. BEMME database is a helpful tool to describe the therapeutic strategies employed in MPM patients in Spain.

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