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V. Van Der Noort



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    ESMO-IASLC Best Abstracts (ID 61)

    • Event: ELCC 2018
    • Type: Best Abstract session
    • Track:
    • Presentations: 1
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      109O - Health-related quality of life (QoL) after prophylactic cranial irradiation (PCI) vs no PCI for stage III NSCLC patients: Results from the NVALT-11/DLCRG-02 study (ID 273)

      16:45 - 18:30  |  Author(s): V. Van Der Noort

      • Abstract
      • Presentation
      • Slides

      Background:
      The NVALT-11/DLCRG-02 randomized phase III study compared PCI to observation after chemo-radiotherapy for stage III NSCLC and showed a significant decrease in time to develop symptomatic brain metastases in the PCI arm at the expense of more low-grade mostly neurological toxicity (HR 0.25 95% CI 0.11–0.58). We here report on the QoL.

      Methods:
      EORTC QLQ-C30 and EuroQol 5D (EQ-5D) data measured before PCI and 3, 12, and 24 months thereafter were compared for both arms. Specifically, functional scales and global health status scores (QLQ-C30) as well as VAS and utility scores (EQ-5D) were analysed using non-parametric tests.

      Results:
      In total, 86 and 88 patients were included in the PCI and observational arm respectively, accumulating to 853 observations (five observations completely missing). Baseline QoL was similar between both arms, except for emotional (p = 0.025) and cognitive functioning (p = 0.039) which showed a significantly better score in the PCI arm. At three months, the observational arm scored significantly better on the EQ-VAS (median 70 vs 60, p = 0.017), while EQ-5D utility scores (Dutch tariff) were similar. At three months, QLQ-C30 showed that physical functioning, cognitive functioning, and global disease specific QoL were significantly better in the observational arm (median 83 vs 73, p = 0.003, median 100 vs 83, p = 0.006 and median 67 vs 67, p = 0.017). At later time-points, except for significantly better cognitive functioning at 24 months in the observational arm (median 83 vs 67, p = 0.017), no significantly different QoL (either QLQ-C30 or EQ-5D) was observed between the two arms.Table:Median scores of functional scales and global health status scores of QLQ-C30 and VAS and utility scores of EQ-5D

      Median (PCI)Median (Observation)
      T0T3T12T24T0T3T12T24
      QLQ-C30
      Physical7773878080838077
      Role6767676767676767
      Emotional8383839275888388
      Cognitive100838367831008383
      Social83831008383838392
      Global QoL6767676767676767
      EQ-5D
      Utility score0.8430.7750.8050.8430.8110.8110.7750.843
      VAS score6560707570706970


      Conclusions:
      In conclusion, despite substantially reducing the incidence of brain metastases in NSCLC patients, PCI impairs short term generic QoL as well as disease specific QoL. The impact on long term QoL is limited to problems concerning cognitive functioning only.

      Clinical trial identification:


      Legal entity responsible for the study:
      Nederlandse Vereniging van Artsen voor Longziekten en Tuberculose (NVALT)

      Funding:
      Has not received any funding

      Disclosure:
      All authors have declared no conflicts of interest.

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