Haven't had a chance to read this but it looks like a step in the right direction.
http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1001819
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On April 14, 2015, the World Health Organization (WHO) published a new statement on the public disclosure of clinical trial results (S1 Text) [1]. The WHO statement not only re-affirms the ethical imperative of clinical trial results reporting, it also defines reporting timeframes, calls for results-reporting of older but still unpublished trials, and outlines steps to improve linkages between clinical trial registry entries and their published results. This updates and expands WHO’s 2005 statement that “the registration of all interventional trials is a scientific, ethical, and moral responsibility”
http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1001819
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