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The problem of therapeutic use of unauthorised (investigational) drugs, always controversial, over recent years has become a topic of a particularly heated public debate. Most often referred to as expanded access (EA) or compassionate use, such treatment is usually performed in patients with serious including life-threatening diseases who cannot be treated satisfactorily with authorised drugs.1 Remarkably, EA, originally introduced with a view to enabling treatment of patients with unauthorised drugs in exceptional cases and on a rather small scale, over the last decade has tremendously developed and at present is clearly of growing importance to public health.
According to the recently published US Food and Drug Administration’s (FDA’s) data, the number of EA requests in the USA increased more than twofold between 2005 and 2014; these applications pertain to use of unauthorised drugs in a variety of medical specialties.2 While analogous data for the European Union are lacking, in the majority of European countries EA treatment is permitted by drug regulatory agencies and at least in some of these countries the role of EA in clinical practice also tends to be rising.3
Particularly relevant to public health are EA programmes and their relations with clinical trials. Such programmes, often involving hundreds or even more than a …
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