Merck said it aims to file in 2009 for regulatory approval of Rolofylline, a treatment for heart failureLooks like Merck will not file the NDA in 2009: Rolofylline Did Not Demonstrate Efficacy for Acute Heart Failure in Clinical Trial <a href="http://www.merck.com/newsroom/press_releases/research_and_development/2009_0605.html" rel="nofollow" target="_blank">http://www.merck.com/newsroom/press_releases/research_and_development/2009_0605.html</a>