Moving the goalposts

My neuro has confirmed we need to wait to be sure my lymphocytes are safely over 1.0 before initiating any depleting treatment. No doubt wise, but frustrating never the less.

The good thing is that having waited so long, there may yet be a licensed treatment available and off-label treatment might not be necessary after all. Last April phase 3 trial results were published for siponimod:

http://multiple-sclerosis-research.blogspot.com/2017/04/aan-siponimod-phase-iii-positive-in.html

Siponimod is the me-too, younger brother and imroved version of fingolimod. You may recall I had an aborted attempt at starting fingolimod back in summer 2014:

https://annoniemouse1970.blogspot.co.uk/2017/06/2005-in-pre-ms-days.html

I've never paid that much attention to siponimod, assuming it would also be contra-indicated. But, reading more carefully, this drug is selective for activity in the brain and lymph nodes, leaving heart tissue less affected.

So how do the 'imod' drugs work? They are chemical analogues of an endogenous chemical messenger known as sphingosine-1-phosphate (S1P). S1P binds to protein recepters on various cells including lymph nodes, cardiac myocytes (heart muscle) and cells in the CNS (neurones, astrocytes and oligiodendrocytes). The primary treatment effect of fingolimod in RRMS is to trap lymphocytes in lymph nodes and stop them getting into the CNS. A major side effect is bradycardia (slowing of heartbeat), especially after first dose hence you have to be monitored for the first few hours.

The protein recepters on different types of cell vary slightly and have been identified as 5 distinct types. Of particular relevance:

S1P-1   lymph nodes (and CNS cells)
S1P-3   cardiac myocytes
S1P-5   CNS cells             
                                           (over simplified)

Siponimod was found to be S1P-1 and S1P-5 selective in animal models. As S1P-5 has potential for neuroprotection and remyelination, clinical trials followed for secondary progressive MS in 2016 (BOLD phase 2 small study) and 2017 (EXPAND large phase 3 study).

There are, as yet, no treatments licensed for secondary progressive (later stage) MS so this is long awaited.

A letter to my MP

I am 47 years old and have MS. I retired early at age 45 and my mobility is deteriorating. Yet my worst symptom by far is invisible central neuropathic pain. 

I am therefore very moved to have learned today about a lady called Vicky, the exact same age as me, whose MS has taken a most aggressive course:

http://multiple-sclerosis-research.blogspot.com/2018/02/guest-post-argument-for-legalising.html?m=1

hansard.parliament.uk/Commons/2017-10-10/debates/DD48FD3C-C652-4ABB-BE9E-ADDECA878E27/LegalisationOfCanna

I urge you, please, to attend the house on Friday 23 February when this private members biĺl is read and vote to support. 

I would be happy to meet up with you and try to explain first hand the problem of intractable neuropathic pain if that would help.

With kind regards




Ok, it was an e-mail. Probably stands even less chance of being read, let alone acted upon. But this is such a desperate tale, I urge you to do the same. Private members bills notoriously get nowhere, although this one may have a huge weight of public opinion behind it and fare better.

On the up

For those who didn't know, I went to London last week and had the results from my MRI scan from last September. Scan showed lots of lesions in brain but we don't know how long they've been there. None of the lesions were active at the time of scan. Active means catching lymphocytes in action as they push through the blood brain barrier. I understand this can be picked up for 2 to 4 weeks during a typical relapse. So that's good news on one hand, or bad news from the point of view of ticking boxes to qualify for licensed treatments. Had my previous scan from 5 years ago with me, but apparently that's too long ago to usefully  compare with. Seems they keep on the case with yearly monitoring (at least of brain, spinal cord gets left out) up in the big city, down here life pootles on at a slower pace.....
So I now have a baseline scan for future monitoring. New lesions next time have to be from the last year.

In other news, had some more blood tests and am delighted to report that at last, two years post dimethylfumarate (Tecfidera), my total lymphocytes have leapt to a count of 0.9 good news indeed 😁 now waiting for an update to see if at long last I can start on off-label  cladribine injections.

Happy New Year 2018!

Driving on around Lake Arenal to the west we reached our next stop Monteverde. Couldn't find an accessible trail through any of the reserves but did discover the Original Canopy Tour:

Being high up in the canopy with the birds and views to the Pacific ocean was exhilarating beyond measure.

This was Costa Rica's first zip wire tour of the rainforest canopy established back in 1994. Unlike other tours this one goes tree to tree through the forest so only involves one 15 minute hike to the first tree platform. Me, hike uphill for 15 minutes?!

So I lied and signed the form to say I was physically capable of doing it. Somehow, with John and Ali each side supporting my arms and taking most of my weight and all I had to do was walk my feet over the ground (advantages of me being 5ft tiny, whilst John and Ali are 6ft strong) I got there. Our wonderful guide Pedro decided we should be a private tour (just the three of us) and with no time pressure encouraged us to take frequent breaks. He then positioned us so that Ali always went first:

Ali took to it like a duck to water

and John last:

So cool!

In this way there were always two people to help me on the platform. To be honest I found the zips tough to say the least, my right arm struggling to pull down on the wire to brake:

Not exactly a controlled landing!

This bit was optional, so sat it out on the platform and waited for them all to climb back up via rope ladder 

Keiver always went first and proved a dab hand at filming. 'He's a pro' Pedro assured me. 

He's never dropped a phone, yet....

Keiver, Pedro, me and Ali

It was New Year's Eve.

Fabulous to finish 2017 on top of the world!

Costa Rica pura vida!

We've taken advantage of the Christmas holidays and all meet up with Louise in Costa Rica for two weeks. Fantastic to see the wonderful country we've heard so much about at last. So much wildlife! Spent the first few days near Arenal Volcano (not that the cloud ever cleared to give much of a view). Arenal Observatory Lodge includes some reasonably accessible trails for an all-terrain wheelchair like Mac and someone like myself able to walk short distances (currently up to about 100m or 5 minutes total standing time). As I've said so often before, there is a huge difference between being a wheelchair user and being wheelchair bound.

This was as far as I got while the rest of them legged it down steep and slippy steps to swim in the waterfall far below. I'd have been there in a former life and did consider trying to clamber down....

So if I look wet in the photos I hadn't been swimming it's because it rains (heavily) frequently in between spells of beautiful sunshine. Guess that's why it's called a rainforest.

Arenal Volcano is behind us! 

Christmas tandems

Three Kings, two reindeer and 

a camel.

Not forgetting the pantomime favourites....

Dick Whittington and his Cat. This one's better without the cycling gear.

This was our Tandem Club Taunton group Christmas lunch on Sunday 10th December. There should have been about twenty tandems but the weather was so dreadful just three did a very short ride before all enjoyed a lovely lunch together.  Rather a late post, it's been crazily busy. I'm not complaining, we're off on the holiday of a lifetime shortly meeting Louise in Costa Rica. This will be the first-time we've ever been away for two weeks or done winter sun. Then there have been cards to write, presents to wrap, family and friends to visit....

It's been a pretty good year all in all, still no MS treatment but next neurologist appointment lined up for January.

Happy Christmas to all 🎄😊

This could have been me #tecfidera

Here's a snapshot from a recently published clinical commentary about dimethylfumarate (dmf or brandname Tecfidera) and prolonged lymphopaenia (low total lymphocyte count) that I pinched from a neurologist's Twitter feed this morning. Fact: neurologists tweet, friends and family do Facebook; meanwhile clubs, charities and anyone wanting to sell you something do both!

Anyway, what the report points out is that dmf causes marked lymphopaenia that persists after drug discontinued. Like me, this patient had switched to dmf after beta interferon and, also like me, only took dmf for four months. Clearly, dmf lymphopaenia has no bearing on how effective the drug is as this patient had a severe relapse despite her lymphopaenia. I know from my own experience that two years post dmf short course total lymphocytes remain low and from the flow cytometry  (measuring lymphocyte subsets) the cell group particularly low are the CD8 T cells. Dmf must deplete memory B cells to a moderate extent whist being taken for it to be moderately effective. It would seem to me that at the expense of long term lymphopaenia in particular low CD8 count this drug is not worth the risk.

Sorry folks, next post will have some photos..... here's a clue #tandem #christmas #fancydress