Saturday, October 6, 2018

Still Another One Bites the Dust

For several years there has been excitement that some blood pressure medications can remove amyloids and treat Alzheimer's disease.  Occasionally, people contact me with hopeful and promising stories about a blood pressure medication that might work.   

This past week's edition of ALZForum reported on a study to determine if the blood pressure drug nilvadipine would slow cognitive decline.  It was a great disappointment that the phase 3 trial showed no improvement in in the study population.  Recall that a phase 3 trial is final stage with the largest study population.  It's the one required for FDA approval of a treatment.

Not everyone is ready to abandon nilvadipine.  Some suggested that there may have been problems with the design of the study.  The dose may have been too low, the trial may have started too late in the progress of the disease, or inadequate screening of test subjects meant that the subject population included people who did not have Alzheimer's pathology.  But, who knows?

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