"This is coming along," she told ABC News. "It's coming along pretty quickly relative to other agents, but this drug and all the others are not cures for the disease."
Alzheimer's patients like Henes are optimistic.
"I can't wait. I am so excited about the possibility," Henes said. "If I can stay the way I am now until a drug that comes along, I will be a lucky person."
To learn more about participating in the Phase III clinical trials of Dimebon, visit this site, or call 1.877.888.6386.