Positive outcomes from Alzheimer’s drug in Phase 1 scientific trial extension

The pharmaceutical firm Biogen has as we speak introduced the outcomes of an prolonged part 1b scientific trial of the potential Alzheimer’s illness drug, aducanumab. Results from the prolonged early stage trial, have been introduced as we speak at Clinical Trials in Alzheimer’s Disease (CTAD) convention in Boston.

Aducanumab is an antibody that targets amyloid, a protein that builds up within the brains of individuals with Alzheimer’s illness. Several medication have been designed to focus on this course of, however none has but succeeded in enhancing outcomes for folks residing with Alzheimer’s illness.

Last 12 months, researchers printed outcomes from a 54-week trial wherein 165 folks with early Alzheimer’s illness obtained month-to-month injections of aducanumab, at doses of both 1, three, 6 or 10 mg/kg, or a placebo injection of saline resolution. The findings indicated that individuals who obtained the drug had decrease ranges of amyloid within the mind on mind scans and a slower decline in reminiscence and pondering expertise. Those who obtained the best, 10mg/kg dose, confirmed the strongest indicators of a profit.

The researchers have continued to work with this group of individuals, and now have outcomes from sufferers who’ve been taking the drug for as much as 36 months. The findings offered on the convention as we speak level to a continued profit over the extension interval, with additional reductions in amyloid ranges, and slower decline in reminiscence and pondering expertise in individuals who took larger doses of the drug. In one check of reminiscence and pondering expertise, individuals who obtained 10mg/kg all through the three years of the examine skilled round half the decline as those that obtained a placebo adopted by a low dose.

The trial extension concerned sufferers who have been receiving a placebo therapy all through the unique trial and who switched to obtain aducanumab for the 2-year extension interval. These outcomes present that individuals who had been handled with the drug initially as a part of the trial, continued to have slower decline than these moved over to the drug from placebo in a while. This is a way utilized in scientific trials to discover whether or not a drug could also be slowing a illness fairly than simply enhancing the signs.

In the unique trial, round 1 / 4 of individuals who obtained the drug skilled a situation known as ARIA, which is characterised by leakage of fluid from the blood into the mind. The researchers report that there have been no new instances of ARIA in individuals who continued on the identical dose of aducanumab within the extension, however that they noticed the same proportion of instances in individuals who transferred from the placebo therapy.


Aducanumab is at present being examined additional in part III scientific trials. These trials are at present recruiting folks within the UK who’ve a confirmed prognosis of delicate cognitive impairment (MCI) or delicate Alzheimer’s illness. Volunteers have to be keen to bear testing for threat genes and have a number of badessments together with mind scans and blood exams. Anyone can signal as much as Join Dementia Research at www.joindementiaresearch.nihr.ac.uk or by calling Alzheimer’s Research UK on 0300 111 5111.

Dr Carol Routledge, Director of Research at Alzheimer’s Research UK, stated:

“It has been over 15 years for the reason that final Alzheimer’s therapy got here to market and the therapies which can be at present out there solely provide modest, non permanent advantages. The outcomes of this small extension examine add to earlier promising indicators from the trial that aducanumab may act on underlying illness processes in Alzheimer’s.

“Not solely did aducanumab badist to clear the amyloid protein from the mind, however the truth that the advantages of the drug have been larger for these individuals who took the drug over 36 months in comparison with 24 months is an encouraging signal. Other medication which have proven promise at this stage of testing haven’t gone on to achieve later stage trials, so we’ll solely know what the longer term holds for aducanumab after we see outcomes from the bigger ongoing part III trials.

“Alzheimer’s Research UK is committed to bringing about life-changing treatments for dementia but this will only be possible if enough people volunteer to take part in research. Anyone interested in volunteering for dementia research, including the current phase III trial of aducanumab, can sign up to Join Dementia Research at www.joindementiaresearch.nihr.ac.uk or by calling Alzheimer’s Research UK on 0300 111 5 111.”


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Provided by:
Alzheimer’s Research UK


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