The important thing here is transparency and access. Right now, an awful lot of data that comes forward to Health Canada the public never sees and the doctors never see. Negative trials are usually not published. One of the issues related to finding out that, for example, SSRIs don't work better than placebos is that the negative trial data was never published. The trial data that said this product wasn't helping never made it into a publication. Now, that might have been because it was actively suppressed or because the study wasn't of high enough quality to merit inclusion, but for whatever reason.... Also, a good proportion of those negative studies were reinterpreted as positive. This is the sleight of hand in science known as creative writing.
On March 13th, 2008. See this statement in context.