. 2009 Feb;11(1).
doi: 10.1186/bcr2209.

Are we HER-ting for innovation in neoadjuvant breast cancer trial design?

Natasa Snoj 1 Philippe L Bedard  Evandro de Azambuja  Fatima Cardoso  Martine Piccart  
  • PMID: 19216727
  •     58 References
  •     3 citations


Through the use of surrogate markers of efficacy, neoadjuvant studies may facilitate the implementation of new treatments into clinical practice. However, disease-free survival is the current standard outcome endpoint for registration of a novel treatment. The coupling of smaller neoadjuvant 'proof of principle' studies with larger adjuvant registration trials offers the promise of speeding up the time to market of new therapies. Clever new designs, such as the 'biological window' and 'learn on the way', can provide valuable insight regarding mechanisms of action and resistance of these novel drugs by identifying patients who are most likely to respond to a novel therapy early in the drug development process. Using the ongoing neoadjuvant trials with HER2 (human epidermal growth factor receptor 2)-directed therapy as a paradigm, this article discusses recent innovations in study design and the challenges of conducting translational research in the neoadjuvant setting.

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