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Bapineuzumab is given as periodic intravenous infusions, and the companies have said they are stopping development of that form but continuing to test a version that can be given as a shot.

More results on this drug and a similar one — Eli Lilly & Co.’s solanezumab — will be presented at a conference in Boston next month. Lilly recently announced that combined results of two large studies of solanezumab suggested some benefit on cognition.