The Alzheimer’s Disease Anti-Inflammatory Prevention Trial (ADAPT) was launched a decade ago to determine if an NSAID (naproxen 220 mg BID or celecoxib 200 mg BID) could delay the onset of AD (ADAPT Research Group et al. Alzheimers Dement 2009; 5: 93-104; free full text at www.ncbi.nlm.nih.gov/pmc/articles/PMC2866447/pdf/nihms185404.pdf). The trial was suspended in 2004 following the finding from the Adenoma Prevention with Celecoxib (APC) trial of an increased cardiovascular risk with celecoxib (Solomon et al. N Engl J Med 2005; 352: 1071-1080; free full text at www.nejm.org/doi/full/10.1056/NEJMoa050405).
Indeed, data from ADAPT subsequently suggested an increased cardiovascular and cerebrovascular risk with celecoxib and naproxen (ADAPT Research Group. PLoS Clin Trials 2006; 1: e33; free full text at www.ncbi.nlm.nih.gov/pmc/articles/PMC1851724/pdf/pctr.0010033.pdf).