Sunbird Bio Inc.’s Neural EV-tau aggregate assay demonstrated 92% correlation with PET scans in identifying individuals with Alzheimer’s disease, a study presented at the Alzheimer’s Association International Conference in Philadelphia, on July 30 found.

Data on C2N Diagnostic LLC’s new blood test combining a proprietary p-tau217 measurement with the amyloid beta (a-beta) 42/40 ratio, a component of C2N’s commercially available PrecivityAD blood test, could help to predict people at risk for Alzheimer’s disease (AD) – even at the earliest stages.

The controversial approval of Biogen Inc.’s Aduhelm (aducanumab) in June sharply increased the interest in developing a quick, painless method of diagnosing Alzheimer’s disease (AD). Now, more than half a dozen blood-based diagnostic assays are in development and one is commercially available, albeit without FDA clearance.

According to Todd Haim, chief of the Office of Small Business Research at the National Institute on Aging (NIA), Alzheimer’s disease (AD) is a major issue. In his opening remarks on a BIO Digital panel, titled “Brave Innovations: public and private solutions to advance Alzheimer’s therapeutics and diagnostics in a risk-averse climate,” he provided data showing why new treatments for AD and AD-related dementias (ADRD) are desperately needed.

C2n Diagnostics LLC has received a $20 million investment in its Alzheimer’s blood test, APTUS-Aβ, from the philanthropy group GHR Foundation. The test measures various types of amyloid beta in the blood and then factors in additional data, such as age, to develop a probability score for amyloid-related pathology in the brain.