An adaptive design for a medical device clinical study is defined as a clinical trial design that allows for prospectively planned modifications based on accumulating study data without undermining the trial’s integrity and validity. Adaptive designs, when properly implemented, can reduce resource requirements and/or increase the chance of study success. This guidance provides sponsors and Food and Drug Administration (FDA) staff with guidance on how to plan and implement adaptive designs for clinical studies when used in medical device development programs.


This document addresses adaptive designs for medical device clinical trials and is applicable to premarket medical device submissions including Premarket Approval Applications (PMA), premarket notification (510(k)) submissions, de novo submissions (Evaluation of Automatic Class III Designation), Humanitarian Device Exemption (HDE) applications and Investigational Device Exemption (IDE) submissions. This guidance can be applied throughout the clinical development program of a medical device, from feasibility studies to pivotal clinical trials. This guidance does not apply to clinical studies of combination products or codevelopment of a pharmaceutical product with an unapproved diagnostic test. However, the underlying principles may be applicable to such studies. 



Posted on the FDA website on 15 May 2015