• Andrew Bottomley, Dave Jones, and Lily Claassens.
• EORTC Quality of Life Department, EORTC Headquarters, Avenue E. Mounierlaan, 83/11, Brussels 1200, Belgium. andrew.bottomley@eortc.be
• Eur. J. Cancer. 2009 Feb 1; 45 (3): 347-53.

AimsPatient-reported outcomes (PROs) have recently gained greater credibility with regulatory bodies aiming to standardise their use and interpretation in RCTs, thereby supporting medicinal product submissions. For this reason, the United States (US) Food and Drug Administration (FDA) and the European Medicines Agency (EMEA) have released guidelines. This review paper provides an overview of the current perspectives and views on these guidelines.MethodTo evaluate the FDA and EMEA PRO guidelines, 47 expert responses to the FDA guidance were qualitatively reviewed. Two reviewers independently extracted data from these letters and checked these responses to warrant consistency and agreement in the evaluation process. A PubMed literature review was systematically examined to obtain supporting evidence or related articles for both the guidance documents.ResultsGenerally, there is agreement between regulatory authorities and the research community on the contents of the FDA and EMEA PRO draft guidance. However, disagreements exist on significant philosophical topics (e.g. the FDA focuses more on conceptual models and symptoms than the EMEA) and design topics (e.g. the FDA is more restrictive on issues of recall bias, blinding of oncology trials and degrees of psychometric validation than researchers and the EMEA). This could influence the approval of PRO claims.ConclusionPRO guidance from the EMEA and FDA has been valuable, and has raised the profile and active debate of PROs in oncology. However, our review of the current opinion shows that there are controversial aspects of the guidance. Consequently, greater latitude should be given to how the guidance is interpreted and applied.

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