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MO07 - NSCLC - Targeted Therapies II (ID 114)
- Event: WCLC 2013
- Type: Mini Oral Abstract Session
- Track: Medical Oncology
- Presentations: 1
- Moderators:T. John, J.W. Riess
- Coordinates: 10/28/2013, 16:15 - 17:45, Bayside Auditorium B, Level 1
MO07.09 - Feasibility and clinical impact of re-biopsy in advanced non-small cell lung cancer: a prospective multicentric study in real world setting (GFPC study 12-01) (ID 1045)
16:15 - 17:45 | Author(s): G. Fraboulet
In case of progression under initial treatment, repeat biopsy is a new option procedure in advanced non-small cell lung cancer (NSCLC). Its justification is based on the assessment of biological markers (comparison to the initial status, emergence of resistance to chemotherapy or new biomarkers). The aim of this pragmatic prospective multicenter study was to assess feasibility and clinical utility of re-biopsy in real world setting in advanced NSCLC.
Patient’s main inclusion criteria was advanced NSCLC with an indication of repeat biopsy by the referent clinician. The primary outcome was the percentage of successful procedures; secondary outcomes were localization of the new biopsy, type of procedure, new biological status (comparison to initial status, new biomarkers, resistance biomarkers) and tolerance of the procedure.
From May 2012 to May 2013, 18 centers included 102 patients. The characteristics of the 67 first patients were: male: 40%; age: 64.8 ± 10.9 years; PS 0/1: 87%; adenocarcinoma: 85%; EGFR mutated: 46.2%; no biological available assessment: 16.4%; controlled disease as best response to first line: 70%. Repeat biopsy was possible in 80.6%. The main failure reasons were: inaccessible lesion: 4.5%, medical contraindications: 14.9%. Main procedures were: bronchial endoscopy: 48.1%, trans thoracic needle biopsy: 24.1%. The procedure permits to find, in EGFR wild type population, 3 patients with a driver oncogene (1 HER2, 1 Ros1, 1 EML4 ALK); in EGFR mutated patients, 2 T790M mutations and to obtain in 3 patients with no biological data’s at the diagnosis, a biological profile. Complications were very low: 2 cases of moderate bleeding and 1 case of pneumothorax.
Repeat biopsy is a feasible procedure with acceptable adverse events. Recommendations should be realized on the indications of re-biopsy, the timing and the recommended site (primary versus metastasis, progressive target versus no progressive). Analysis of the complete population (n=102) will be presented at the meeting. Supported by an academic grant from Boehringer Ingelheim Company and Hoffmann-La Roche Company.
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P1.14 - Poster Session 1 - Mesothelioma (ID 194)
- Event: WCLC 2013
- Type: Poster Session
- Track: Mesothelioma
- Presentations: 1
- Coordinates: 10/28/2013, 09:30 - 16:30, Exhibit Hall, Ground Level
P1.14-008 - Clinical features and current management of malignant pleural mesothelioma in France. TheGFPC 0804 study. (ID 2378)
09:30 - 16:30 | Author(s): G. Fraboulet
Malignant pleural mesothelioma (MPM) is a rare and aggressive primitive pleural tumour, which is associated with exposure to asbestos. Chemotherapy is the main part of therapy with new cytotoxic agents resulting in superior survival time. Recently the European Respiratory Society and the European Society of Thoracic Surgeons proposed practical and up-to-date guidelines on the management of MPM. The objective of this study was to assess the current management of MPM in France between January 2005 and December 2008.
Observational, multicentric, national, study. The medical records of patients with MPM diagnosed during the study period in the 37 participating centers were retrospectively reviewed. Epidemiological data, clinical data, diagnosis procedures and several components of management were recorded. Mains inclusion criteria’s were a new diagnosis of MPM, a histology diagnosis and a management in the center.
Four hundred and six patients (males: 76%) were included; median age: 68.9± 9.8 years; > 75 years: 27.8%; Asbestos exposure was found out in 259(63.8%) patients (251 professional exposure, 8 environmental exposure). Histological diagnosis was: epithelial MPM: 82.9%, sarcomatoid MPM: 10%, biphasic MPM 7.1%. The main diagnosis procedure was thoracoscopy (296 (73.1%)). Thirty patients underwent surgery (25 radical surgery, 5 pleurectomy). Pleurodesis was performed 191 times. Prophylactic drain site radiotherapy was performed in 268. Three hundred and three patients (74.6%) received first-line combination chemotherapy (mean cycles: 4.7 ± 1.7, median 6); 162 (40.2%) received second line chemotherapy (mean cycles: 3.5 ± 1.9, median 3); 56 ( 13 %) received third line chemotherapy (3.1± 2, median 3). One and two year survival rates will be updated at the congress.
This study provides an assessment of diagnosis modes and therapeutic strategies for the management of MPM in France. Further analyses are needed to model the management strategies and assess the cost-effectiveness of this disease.