Opinion in 2012

In terms of drug development, the main driving force should be optimized benefit–risk to patients; however, no drug can be of real benefit unless it has achieved approval from the regulatory agencies. This Perspectives allows us a peek behind the door of one of those agencies (EMA) and outlines the hurdles that exist and that need to be overcome before we can have an efficient, biomarker-driven drug development program. Points for discussion in the community are raised and suggestions are put forward.

Antiangiogenic therapies have secured a role in the treatment of multiple cancers. However, the success of this targeted therapy is not as great as originally anticipated. In this Perspectives article, the authors use data from clinical trials to uncover where some of the problems with this therapy lie, discuss exciting recently published data and look to what the next steps should be.

The increasing reliance on hazard ratios for the assessment of clinical trial data prompted this Perspectives article, designed to outline the uses and misuses of this popular statistical value. The authors use real trial data and synthetic examples to explain how the hazard ratio is derived and why the numerical value of a survival measure should also be published alongside it.

Randomized controlled trials (RCTs) pose dilemmas in terms of the tension between the therapeutic obligations of the physician and the scientific obligations of the investigator. Clinical equipoise is often regarded as a solution to this problem. The authors critically evaluate clinical equipoise and highlight its flaws as an ethical requirement for RCTs and propose an alternative method of risk–benefit assessment.