Lilly Launches Its First Phase III Trial for Treatment of Alzheimer's Disease
News Apr 02, 2008
Eli Lilly and Company has announced the start of a Phase III clinical trial studying LY450139, an investigational gamma secretase inhibitor for the treatment of mild to moderate Alzheimer's disease.
LY450139 is being tested to see if it can slow the progression associated with Alzheimer's disease by inhibiting gamma-secretase, an enzyme that can create a sticky protein called amyloid beta. Current Alzheimer's disease theory is that subtypes of amyloid beta clump together into plaques that eventually kill off brain cells. By blocking gamma secretase, there is less amyloid beta formed, potentially slowing brain-cell death.
Slowing the rate of disease progression could preserve independent functioning and quality of life for Alzheimer's patients in the milder stages of the disease, potentially delaying the onset of the severe stages of the disease. Currently available treatments for Alzheimer's disease have no documented effect on amyloid beta. They provide modest improvements in symptoms but do not slow the underlying disease process.
The IDENTITY Trial - Interrupting Alzheimer's Dementia by EvaluatiNg Treatment of AmyloId PaThologY
IDENTITY is a randomized, double-blind, placebo-controlled trial that will be conducted in the U.S. and 21 additional countries. As part of IDENTITY, 1,500 patients will be studied for 21 months, and an open-label extension will be available to all participants completing the study.
Patients who are taking currently available symptomatic treatments for Alzheimer's disease can continue treatment during their participation in IDENTITY. Because the IDENTITY study also incorporates a "randomized delayed start" design, even those subjects initially assigned to the placebo arm of the study will be started on active LY450139 treatment sometime before the end of the 21-month study period. Both the subjects and investigators will be blinded to the exact timing of this delayed start of study drug administration.
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