Alzheimers Disease Clinical Trial
Official title:
A Randomized, Double-blind, Placebo-controlled, Two-cohort, Parallel Group Study to Evaluate the Efficacy of CAD106 and CNP520 in Participants at Risk for the Onset of Clinical Symptoms of Alzheimer's Disease.
The purpose of this study was to test whether two investigational drugs called CAD106 and CNP520, administered separately, could slow down the onset and progression of clinical symptoms associated with Alzheimer's disease (AD) in participants at the risk to develop clinical symptoms based on their age and genotype.
The study (also known as the Generation Study 1, GS1) was conducted as part of the Alzheimer's Prevention Initiative (API) program. This trial was a randomized, double-blind, placebo-controlled, parallel group, adaptive design with variable treatment duration planned in cognitively unimpaired APOE4 homozygotes (HMs) aged 60 to 75 years. Participants were enrolled into Cohort I (CAD106) or Cohort II (CNP520). The planned treatment period of 5 to 8 years was not achieved due to early study termination. The study was terminated due to unexpected changes in cognitive function, brain volume loss, and body weight loss. Cohort II (CNP520) treatment was stopped and evaluated through an off-treatment follow-up period. After the decision to terminate Cohort II of the study (CNP520), treatment with CAD106 (Cohort I) was also terminated. ;
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