Author of

• 18975

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  P3.01 - Advanced NSCLC (ID 621)

  • Event: WCLC 2017
  • Type: Poster Session with Presenters Present
  • Track: Advanced NSCLC
  • Presentations: 1
  • Moderators:
  • Coordinates: 10/18/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)

  • 23921

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    P3.01-062 - The Perceived Value of Avoiding Biopsy: Patients' Willingness to Pay for Circulating Tumour DNA T790M Testing (ID 10004)

    09:30 - 09:30  |  Author(s): N. Perera-Low
    • Abstract
    • Slides

    Background:
    Plasma detection of circulating tumour DNA (ctDNA) with T790M mutation in the context of EGFR tyrosine kinase resistance has been shown to have high concordance with tissue biopsy specimens. In a public healthcare system, patients’ perceived value of a test and willingness to pay can inform policy decisions regarding implementation and funding of a novel technology.
    
    Method:
    As part of screening for the ASTRIS clinical trial (NCT02474355), Canadian patients were invited to participate in a national validation study of blood-based ctDNA T790M testing. Eligible patients had acquired resistance to EGFR TKI and consented to collection of blood samples, demographic data, and completion of a structured interview measuring their perceived value of blood-based ctDNA testing as an alternative to tumour biopsy. They were asked about their willingness to pay for testing using both open-ended and iterative bidding approaches. The study was supported by a grant from AstraZeneca.
    
    Result:
    60 patients were accrued to the study. Median age of the cohort is 64 years (range 31-87); 69% are Asian (40/58); 55% (33/60) are male. All patients had received prior EGFR kinase inhibitor treatment, with 67% (45/60) receiving gefitinib. 17% of patients also received chemotherapy (10/60). A median of 1 prior line of therapy had been received (range 1-6). All patients preferred to have the blood test over repeat tumour biopsy. Patients estimated a mean reasonable price to pay for the test of $954; median $300 (range 0-10,000; IQR 150-800). Patients were personally willing to pay a mean of $281; median $100 (range 0-2500; IQR 33-350).
    
    Conclusion:
    In a public health system that covers the cost of standard diagnostic tests, Canadian patients indicated a willingness to pay out of pocket for peripheral blood detection of ctT790M. Patients have high perceived value of ctDNA and prefer it to tumor biopsy.
    
    

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