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Scientists tie third clinical trial death to experimental Alzheimer ’s drug
As enthusiasm mounts for a new experimental antibody that appears to slow cognitive decline in some Alzheimer’s patients, a third death linked to the drug during its clinical testing may amplify concerns about its safety. Science has obtained medical records showing a 79-year-old Florida woman participating in an ongoing trial of the antibody died in mid-September after experiencing extensive brain swelling and bleeding, as well as seizures. Multiple neuroscientists who reviewed the records at Science ’s request believe her death was likely caused by the antibody, lecanemab. “The brain swelling and t...
Source: ScienceNOW - December 21, 2022 Category: Science Source Type: news

Second death linked to potential antibody treatment for Alzheimer ’s disease
A 65-year-old woman who was receiving a promising experimental treatment to slow the cognitive decline caused by her early Alzheimer’s disease recently died from a massive brain hemorrhage that some researchers link to the drug. The clinical trial death, described in an unpublished case report Science has obtained, is the second thought to be associated with the antibody called lecanemab. The newly disclosed fatality intensifies questions about its safety and how widely lecanemab should be prescribed if ultimately approved by regulators. The woman, who received infusions of the antibody as part of the trial, s...
Source: ScienceNOW - November 28, 2022 Category: Science Source Type: news