Moving forward into 2019 and beyond, we are going to be getting more sophisticated and targetted with our clinical trials for Parkinson’s. We are gradually moving away from the days when a drug was tested on anyone in the Parkinson’s-affected community, and heading for an age of sub-type specific treatments (Click here for a previous SoPD post on subtyping efforts for PD).
As part of this shift, there are a series of ongoing studies that are trying to identify not only the clinical & biological characteristics of those Parkinson’s sub-types, but also individuals who may already be in those groupings.
One such study is called “Rapsodi” – and it is focused on the identification of people with a particular genetic risk factor of PD – the GBA gene – who also demonstrate the early signs of Parkinson’s.
In today’s post, we will discuss what GBA is, how it is associated with Parkinson’s, and why the Rapsodi study is worthy of the PD community’s attention.
Ambroxol. Source: Skinflint
The clinical trial of Ambroxol in Parkinson’s that has been conducted in London (UK) is close to announcing their final results. The Ambroxol study report should be published in early 2019.
What is the ambroxol study?
Started in February 2017, the Ambroxol study (named AiM-PD – Ambroxol in Disease Modification in Parkinson Disease) is a phase IIA prospective, single-centre, open label clinical trial to evaluate the safety, tolerability and pharmacodynamic effects of Ambroxol in Parkinson’s (Click here to read more about this trial and click here for the press release announcing the start of the study).
This trial, which is funded by the Cure Parkinson’s Trust and the Van Andel Research Institute (USA), has been conducted at the Royal Free Hospital in London (UK). The study has involved 20 people with Parkinson’s self-administering Ambroxol (in 60 mg per tablet) over a 6 month time frame. The participants were given 5 escalating doses of the drug for the first few weeks of the study (from 60 mg three times per day, gradually building up to 420 mg three times a day after the first month of the study).
But hang on a second. What is exactly is Ambroxol?
New research published in the last week provides further experimental support for numerous clinical trials currently being conducted, including one by the biotech company Sanofi Genzyme.
Researchers have demonstrated that tiny proteins which usually reside on the outer wall of cells could be playing an important role in the protein clustering (or aggregation) that characterises Parkinson’s.
In today’s post we will look at this new research and discuss what it could mean for the on going clinical trials for Parkinson’s.
The proverb ‘When the cat is away, the mice will play’ has Latin origins.
Dum felis dormit, mus gaudet et exsi litantro (or ‘When the cat falls asleep, the mouse rejoices and leaps from the hole’)
It was also used in the early fourteenth century by the French: Ou chat na rat regne (‘Where there is no cat, the rat is king’).
And then Will Shakespeare used it in Henry the Fifth(1599), Act I, Scene II:
Westmoreland, speaking with King Henry V, Gloucester, Bedford, Exeter and Warwick
“But there’s a saying very old and true,
‘If that you will France win,
Then with Scotland first begin:’
For once the eagle England being in prey,
To her unguarded nest the weasel Scot
Comes sneaking and so sucks her princely eggs,
Playing the mouse in absence of the cat,
To tear and havoc more than she can eat”
Interesting. But what does any of this have to do with Parkinson’s?