Time for a Complete Reset in Alzheimer’s Disease / Dementia Drugs Research: Never Too Late? (BBC News / Brain / NHS Digital)

Summary

A new type of dementia, previously misdiagnosed as Alzheimer’s Disease, has been discovered to be prevalent in the oldest of old persons.

Perhaps a third of elderly people earlier thought to have Alzheimer’s Disease may have had Limbic-predominant age-related TDP-43 encephalopathy “LATE” instead, which has some symptoms in common with Alzheimer’s Disease although with a more gradual decline in memory. LATE is associated with the accumulation of TDP-43 protein in the brain, unlike Alzheimer’s Disease which is linked to amyloid and tau proteins.

Researchers might in future be better able to develop suitable diagnostic tests and targeted treatments for this specific type of dementia. The newly recognised existence of LATE, and its probable role as a confounding variable in Alzheimer’s drug trials, may perhaps account for the failure to discover effective pharmacological treatments for Alzheimer’s Disease to date; decades worth of carefully conducted and expensive clinical trials might simply have been barking up the wrong tree, in part.

In the meantime, further exploratory research is required:

“Development of a disease biomarker would augment observational studies seeking to further define the risk factors, natural history, and clinical features of LATE, as well as eventual subject recruitment for targeted therapies in clinical trials”.

Full Text Link

Reference

Roberts, M. (2019). New type of dementia identified. London: BBC Health News, April 30th 2019.

This relates to:

Full Text Link

Reference

Nelson, PT. Dickson, DW. [and] Trojanowski, JQ. [et al] (2019). Limbic-predominant age-related TDP-43 encephalopathy (LATE): consensus working group report. Brain. April 30th 2019. [Epub ahead of print].

Further discussion, from NHS Behind the Headlines:

Full Text Link

Reference

New type of dementia identified. London: NHS Digital (previously NHS Choices); Behind the Headlines, May 1st 2019.

About Dementia and Elderly Care News

Dementia and Elderly Care News. Wolverhampton Medical Institute: WMI. (jh)
This entry was posted in BBC News, Diagnosis, For Doctors (mostly), For Nurses and Therapists (mostly), For Researchers (mostly), In the News, International, NHS Digital (Previously NHS Choices), Pharmacological Treatments, Quick Insights, UK, Universal Interest and tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . Bookmark the permalink.

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