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P. Dorfmuller



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    O27 - Clinical Trials and Practice (ID 142)

    • Event: WCLC 2013
    • Type: Oral Abstract Session
    • Track: Other Topics
    • Presentations: 1
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      O27.07 - Molecular multidisciplinary tumor board (MMTB) for lung cancer patients: 2-year experience report (ID 2865)

      16:15 - 17:45  |  Author(s): P. Dorfmuller

      • Abstract
      • Presentation
      • Slides

      Background
      Molecular analysis (MoA) of non-small cell lung cancer has led to definition of many subgroups that require dedicated treatments, strategy and trials. We created a monthly MMTB dedicated to lung cancer patients (pts) with potential driving molecular abnormalitie(s). MMTB includes physicians from the lung tumor board and the phase I unit, pathologists and biologists. A medical report summarizes the findings and treatment recommendations. We report 2 years of activity of MMTB.

      Methods
      All consecutive files discussed in MMTB in Gustave Roussy were reviewed. Tumor and pts characteristics were collected as well as treatment. Pts outcome was calculated from the MMTB.

      Results
      245 pt files were discussed between February 2010 and March 2012. 53% were male, 27% never-smokers, 89% had PS 0 or 1, median age was 59. Clinical initial stage was III-IV in 17 pts (7%) and 78%/11%/11% were adenocarcinoma/squamous cell carcinomas/others NSCLC. Time from diagnosis to MMTB was 7 months (m) (1-222), 102 (42%) of pts received more than 1 line of treatment before MMTB. Biopsy for MoA mostly came from CT guided biopsies (61%), surgery (22%) or endoscopy (15%). Biopsy was repeated in 20% of pts to get enough material for MoA. The MoA results were ALK rearrangement in 10%, exon 18/19/21 EGFR mutation (mut) in 2/14/8%, KRAS mut in 30%, PI3KCA mut in 0.4%, BRAF mut in 3%, HER2 mut in 1%, FGFR1 amplification in 3%, other rare mutations in 14%. MMTB recommendations were: a clinical trial in 75 pts (31%), receive an EMA-approved drug in 49 pts (20%), an off-label commercial drug in 18 pts (7%), an expanded access program in 18 pts (7%), none in 85 pts (35%). Out of the 160 MMTB pts with treatment recommendations, 63 (42%) received the proposed targeted therapy and 16 (11%) might receive it at the time of disease progression. After MMTB, 84 pts (34%) received 1 line, 66 pts (27%) 2 lines or more, 56 pts (23%) no treatment (unknown in 39 pts). Median follow-up is 20.6 m. Progression-free (in 224 pts) and overall survivals (OS, in 221 pts) from MMTB are 3.5 and 13.4 m. In univariate analysis for OS, the pts who received the recommended treatment from the MMTB had a better prognosis (hazard ratio [HR]: 0.56, p=0.002), confirmed in multivariate analysis (HR=0.61 [95% confidence interval: 0.42-0.88], p=0.009) after taking into account histology, previous platinum-based treatment and the number of previous treatment lines.

      Conclusion
      MMTB leads to treatment recommendations in a majority of the pts, fosters inclusion in clinical trials or expanded access programs, and limits the use of off labelled drugs. Updated data will be presented

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