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E. Pichon



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    MO03 - Thymic Malignancies (ID 123)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO03.03 - RYTHMIC: a nationwide network for thymic malignancies in France (ID 2631)

      10:40 - 10:45  |  Author(s): E. Pichon

      • Abstract
      • Presentation
      • Slides

      Background
      RYTHMIC (Réseau tumeurs THYMiques et Cancer) is a nationwide network for thymic malignancies, which was appointed in 2012 by the French National Cancer Institute, as part of its rare cancer program. The objectives of the network include a territorial coverage by regional expert centers, the dissemination of highest standards for the diagnostic and therapeutic management of patients, and the promotion of collaborative research. Registration in RYTHMIC of all patients diagnosed with thymic malignancy is recommended as part of good clinical practice for oncologists.

      Methods
      Starting January 2012, the management of all patients diagnosed with thymic malignancy in France has been discussed on a real-time basis at a reference national multidisciplinary tumor board (MTB), which is organized twice a month using a web-based conferencing system. Decision-making is based on consensual recommendations, that were originally established using available evidence, and are updated and approved each year by all members of the network. A prospective database of all patients is hosted by the French Thoracic Cancer Intergroup. We report the characteristics and treatment modalities of patients included during the first year.

      Results
      From January to December 2012, 257 patients were enrolled in RYTHMIC. There were 126 (49%) men and 131 (51%) women; mean age at diagnosis was 54.5 years. Among 214 cases, histology was thymoma for 146 (56%) patients (11 (5%) type A, 28 (13%) type AB, 22 (10%) type B1, 35 (16%) type B2, 24 (11%) type B3, 26 (12%) mixed type), and thymic carcinoma for 33 (15%) patients, 8 of which were neuroendocrine carcinomas; other histologies were diagnosed for 35 (16%) patients. Among 144 cases, Masaoka-Koga stage was I, IIA, IIB, III, IVA, and IVB in 34 (24%), 19 (13%), 20 (14%), 22 (15%), 35 (24%), and 14 (10%) patients, respectively. 44 (17%) patients presented with autoimmune disorder, consisting of myasthenia gravis in 28 cases. Surgery was performed for 166 patients, mostly using a median sternotomy approach (52% of cases). Postoperative radiotherapy was delivered to 42 patients; 71 patients received perioperative chemotherapy. Exclusive chemotherapy/radiotherapy was administered to 20 and 4 patients, respectively. Mature data will be presented at the meeting.

      Conclusion
      This first analysis of the RYTHMIC prospective cohort demonstrates the feasibility of a national MTB for thymic malignancies, that, besides ensuring all patients an equal access to highly specialized treatment, provides with a comprehensive tool to monitor dedicated actions to improve the management of patients in the future, increase the quality-of-care, and screen patients for future translational research and clinical trials. Supported by Institut National du Cancer

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    O18 - Cancer Control and Epidemiology II (ID 133)

    • Event: WCLC 2013
    • Type: Oral Abstract Session
    • Track: Prevention & Epidemiology
    • Presentations: 1
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      O18.03 - The BioCAST / IFCT-1002 study: a comprehensive overview of demographic, risk exposure and somatic mutations of non-small cell lung cancer occurring among French never smokers (ID 3293)

      10:50 - 11:00  |  Author(s): E. Pichon

      • Abstract
      • Presentation
      • Slides

      Background
      Lung cancer occurring in never-smoker (LCINS) is a particular entity. Although the definition is strict (less than 100 cigarette in lifetime) never-smokers are frequently misclassified and no study gives a comprehensive analysis of this group, particularly in a European setting.

      Methods
      All consecutive never-smoker patients diagnosed with a non-small cell lung cancer in one of the 75 participating centers throughout France, between November 2011 and January 2013, were included in this prospective survey. All patients underwent a detailed questionnaire supported by a trained staff during a phone interview. Somatic mutations and cancer clinical and histological data were also recorded from medical charts.

      Results
      Overall, 384 never-smokers were included and 336 interviews were completed. Most of them were women (n=319, 83.1%). The mean age at diagnosis was 69.8 ± 12.02 and 10.9% were under 55 years-old. None reported alternative smoking (pipe, cigar, water-pipe, gum, or cannabis). Most of them originated from Western and Southern Europe (90.5%). Overall, 219 (65.6%) reported a passive smoking exposure in a domestic setting (n=198; 59.3%), and/or at workplace (n=60; 18.0%). Patients had a personal history of pneumonia in 6.2%, tuberculosis in 8.3%, COPD in 13.0%, and a cancer at another site in 16.6%. Eighty patients reported at least two relatives with lung cancer (24.0%). Definite occupational exposure was observed in 12.0% (n=44) for diesel, 7,1% (n=26) for asbestos, 3.3% (n=12) for poly-aromatic hydrocarbons, 2.4% (n=9) for silica, 0.8% (n=3) for chrome, and 0.5% (n=2) for painting. Exposure to cooking oil was noted in 123 patients (36.8%) with a mean of 49.4 ± 356.7 cooking-dish year. Moreover, 79.7% (n=259) patients were ever exposed to solid fuel fumes for cooking or heating (21.2% during more than 50% of their lifetime). Among women, 91.7% already reached menopause (mean age 49.3 ± 5.6 years-old), 115 (41.7%) were ever-exposed to oral contraceptive (mostly oestrogen-containing drugs), and 25.5% to post-menopause hormone replacement therapy (oral or transdermal). Most of lung cancers were adenocarcinoma (n=327, 85.2%) followed by squamous cell carcinoma (n=29, 7.6%) and large cell carcinoma (n=17; 4.4%). Among adenocarcinoma, 71% were invasive, 4% in-situ, 2% minimally-invasive, 2% variant of invasive, and 20.0% were NOS. Cancer stage was I in 9.2%, II in 5.8%, III in 11.8% and IV in 73.2%. At least one biomarker was tested in 359 patients (93.5%). We found 148 patients with EGFR mutations (43.5% out of the EGFR-tested patients), 20 with KRAS mutations (6.8%), 24 with ALK translocation (12.5%), 10 with BRAF mutation (4.5%), 8 with HER2 mutation (4.0%) and 4 with PIK3CA (2.1%). Overall, 27.0% samples remain wild type, 2.1% with multiple mutations, 71.0% with a single mutation, and 20.6% with missing data.

      Conclusion
      We provide here the largest cohort of LCINS in a European setting with reliable data on tobacco intoxication, occupational exposure, and hormonal treatments, since collected by a trained staff through phone interview. In this perfectly clinically characterized cohort, molecular analyses showed that 72% of tumors exhibited oncogenic targetable mutations.

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    P3.09 - Poster Session 3 - Combined Modality (ID 214)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Combined Modality
    • Presentations: 1
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      P3.09-018 - IFCT-0803 Trial: a phase II study of cetuximab, pemetrexed, cisplatin and concurrent radiotherapy in patients with locally advanced, unresectable, stage III, non squamous, non-small cell lung cancer (NSCLC): preliminary safety analysis (ID 3281)

      09:30 - 09:30  |  Author(s): E. Pichon

      • Abstract

      Background
      Cisplatin-based chemotherapy and concurrent radiotherapy are the standard treatments for locally advanced unresectable NSCLC. New therapeutic combinations using molecular targeted drugs are needed. IFCT-0803 Trial is a phase II study evaluating the benefit of adding cetuximab to a combination of concomitant radio-chemotherapy with cisplatin and pemetrexed in patients with stage III, non-squamous NSCLC. Data on safety and tolerance during the first 16 weeks of treatment, available after the inclusion of the first 62 eligible patients, are presented.

      Methods
      Based on a two-stage Simon approach, 106 patients will be included in IFCT-0803 trial. An interim analysis of the first 34 patients authorized the continuation of the study. Eligible patients receive conformal thoracic radiation with no elective nodal irradiation (66 Gy in 33 fractions, ICRU) along with cisplatin (75 mg/m[2]) and pemetrexed (500 mg/m[2]) on day 1 administered intravenously every 21 days for four cycles; weekly cetuximab (400 mg/m[2] for the first week, then 250 mg/m[2]) is added from the first week of therapy for a total of 12 doses. The primary objective is to assess the disease control rate at the 16[th] week, one month after treatment completion

      Results
      62 patients were included (37 male, 56 years mean age), PS 0 = 39 and PS 1 = 23, ever smoker = 57, stage IIIA = 31 and IIIB = 31, adenocarcinoma = 50. Compliance for the first 62 patients included was as follows: Day 1 chemotherapy was administered to 100% of patients on cycles 1 and 2, to 98.4% on cycle 3 and to 96.6% on cycle 4. Radiotherapy protocol was respected: median was 33 for number of fractions, 66 Gy for total dose, 46 days for duration of treatment, 39 patients had a maximal toxicity of grade 3 and 6 of grade 4. Table 1 lists the number of patients for the main categories of toxicity.

      n=62 grade 1/2 grade 3 grade 4
      anemia 32 4 0
      neutropenia 24 20 5
      thrombocytopenia 30 4 2*
      general toxicity 42 13 0
      skin toxicity 51 9 0
      digestive toxicity (nausea and vomiting) 42 6 0
      esophageal toxicity 43 10 0
      febrile neutropenia - 5 0
      renal toxicity 4 3 0
      neurologic toxicity 11 0 0
      * :One patient died consecutively to a subdural hematoma caused by a fall, he had a grade 4 thrombocytopenia

      Conclusion
      IFCT-0803 trial is ongoing, the end of the inclusions is scheduled for October 2013. This combination therapy is feasible without any unexpected side effects.