No, there is no scientific research to back that up, simply a concern that that would happen. We haven't been told by Rx&D that that's definitely what would happen. You'd have to see what would happen with the changes in the bill to know that that would be the result, though there is economic evidence, and certainly pharmaceutical companies and other patent holders make it really clear that their investment in developing products is really contingent on having strong patent protections.
On October 7th, 2010. See this statement in context.