Showing posts with label SLIT. Show all posts
Showing posts with label SLIT. Show all posts

Wednesday, May 14, 2014

Topping out on walnut for a while...

May 14, 2014
Day 355 (Almost a year!)

Well we hit the top dose today!  Woohoo!  2400mg of walnut flour.  We'll stay at this dose for a year.  I asked the allergist why it wasn't higher, and apparently this is the walnut protein equivalent of several nuts.  That was a shock, I had no idea it wasn't a one for one weight calculation.  (I thought we were still at less than one nut).  Everything seemed fine, we saw the somewhat normal redness right under his eyes, but no symptoms.  That didn't last long (also normal for him).  So we'll go in once a month now for a dose in office/monitoring/catch up.  After that year we will have his IgE levels retested and see if they've dropped enough to move on to the next nut.

That was a bit unexpected, but we've been so busy talking about school readiness that we missed that we were so close to this milestone :)

On that note - we've met with the elementary school nurse and assistant principal to discuss how we keep our little guy safe starting in two months (yikes!)  WCPSS (Wake County) has an allergy plan and an asthma plan that looks a bit like a choose your own adventure book (where you choose how you want them to handle certain situations like the lunch table and outside food).  Some of the choices were really non choices, and feel a little exclusive, but I get how a standard is much easier to implement.  (For instance he has to be able to either make his own food choices exclusive of an adult's input, or he can only eat food brought from home with no exceptions).  That's not a choice - he can't read labels, doesn't know all the places nuts can hide, and he's really too young to say no to all the tempting possibilities that will come up at school.  So only home food - always.  The bad part about that is the social exclusion from every party, event, candy handout, etc… for the whole year.  We're going to try to be the room parents so that we can offer to buy safe food/snacks for parties, but things will come up. We can have ice cream or things like frozen cupcakes stored at school and a snack box for the teacher to use in case of those surprise events, but he'll be different every time unless we bring in the food for the class.  So far he hasn't quite realized that he's going to be that kid.  It's time to start talking about it though, he has to get that he can't cheat the odds and take a bite of something.  We'd really prefer never to have to visit the ER again with him struggling to breathe.  At least all of the permanent staff and bus drivers are trained to use epinephrine. (yay!)  It also sounds like he can have an epi in room with him that will follow him around the school (they call this the red bag and in lower grades it follows the class everywhere - diabetes meds, epis, inhalers only).

The biggest points of contention so far (and they didn't really feel like an argument just things we have to sort out) are the school bus (does he self-carry on the bus and where is it kept), and what happens if there is a substitute (they are not epi-trained, anaphylaxis trained).  The bus I think we can sort out with them (and with the after care at the preschool).  They are willing for him to have it on him and that's a big deal.   Everyone likes to say the kids aren't allowed to eat on the bus.  Well, that's irrelevant since we are all well aware that they DO eat on the bus.  Some of them are on the bus for over an hour, we get it.  But we need for there to be an epi available.  Who knows what might be smeared on a seat where he puts his hands, or if he might give in and take a bite of something tempting?  The school wants it in his backpack front pocket, but that's too accessible to everyone IMHO.  We want it on his body (in a spi-belt).  That's what he's been wearing for months (with a trainer epinephrine injector with no needle).  It's under his shirt, small, and harder for another kid to get their hands on it.  The substitute issue is interesting.  For his Kindy year it's probably moot (there is an aide assigned to the class full time too, and the chance of them both being out is very low).  This is something the schools need to figure out.  Subs are not "normal" school employees, there are over 1000 in this county, and they are not epi trained (at least not unless you get lucky).  Leaving him in a class with a sub who doesn't know how to recognize or treat anaphylaxis at this age is not an option we're ok with.  The school didn't really have a good answer but said they'd look into it.   If they can't figure out something we may be picking him up if we find out they have a sub (and we may be asking for it in writing that they call us if his teacher and aide are both out).  We're willing to train a sub, but they aren't sure it will be allowed.  Ah the frustrations of HIPPA/FERPA, government policies, and ill thought out scenarios.

Other big news - for the time being we got denied for the trial at Stanford we were hoping to get into - but we're in their system and are watching (ok maybe stalking a little) as they continue to grow that research into Xolair and mass desensitizations.  Very very interesting stuff!

We did an allergy friendly easter egg hunt this year (no food) and the eldest kiddo at first was not happy until she realized that she was going to get a bunch of little toys instead of candy.  :)  That went well - and it was good to meet some other parents who know what it's like to have to stalk your kiddo at an egg hunt where there might be suspect candy.  We also met another little fellow at the allergist today doing peanut desensitization that I'm sure we'll be seeing every month since we're on the same schedule.

Any friends / fellow parents out there who are looking into this stuff, check out NC FACES on facebook or ping me and I'll get you on the group.  It is awesome to have a place to talk about this part of our world (when Enjoy Life Foods go on sale on zulily or amazon, what baseball games are nut free, how to navigate the local school system, 504 plans, etc…)

Thanks for listening - this one is getting long so I'll stop here and do another update soon!  We are so lucky to have friends and family that help us on this road.  Thank you all, you are blessings to all of us!
Alli

Thursday, March 20, 2014

Warning… science incoming!

March 20, 2014
Day 300
Dose 1500mg/day

300.  Sounds like it should be a milestone doesn't it?  It is!  We increased the dose yesterday to 1500mg and got some puffy eyes to show for it, but it faded a little at a time and no other symptoms cropped up.  The nurse and I kept a serious watch on him in the hours following the dose, but he's ok.  Nothing like a little mom anxiety to put your workday in perspective!   We also discovered this week that Chipotle uses no nuts in ANYTHING.  Boy that was kind of fun - told the kids to order anything they want on the menu with no reservations!  Very allergy friendly menu for most folks (not for soy, wheat).

So there's your minor update on our oral immunotherapy… now for the science geek out and hopeful research updates:

I've referred several times to the Stanford trials of OIT with multiple food allergens and specifically to the shortened OIT in combination with Xolair.  This supposedly is opening up to 4 other places in the US (although I can't officially find out where, I would imagine Arkansas Childrens, Hopkins, and UNC to be three of them… )   If we could desensitize more folks in far less time (and to up to 5 allergens at once), well wow.  It's frustrating as the news articles hint at things that you can't find on the Stanford or any other university websites, but I know it's all in progress research.  We would be thrilled if the trials were expanded into NC.  Heck we'd consider temporary relocation if we thought we could get into them even in California.  

Stanford blog post about allergy research (talks about the phase 2 Blinded study potential openings and potential future DNA tests that might show if OIT maintenance can be discontinued safely.  (It appears that for peanut allergy that is "cured" there are DNA changes - wow a safety screen test?!)

Presentation by Dr. Burks (formerly Duke, now UNC) on the state of food allergy research 12/18/2013.  This covers lots of the ongoing research for OIT, SLIT (sublingual immunotherapy), the Chinese herbal treatments (FAHF-2), Xolair (omalizumab) combined with OIT for milk allergy and for peanut, baked egg and baked milk trials, 

Blog post about FAHF-2 in combination with OIT (instead of Xolair) - this a great update about not only FAHF-2, but Stanford and Mt. Sinai research collaboration.

Perhaps I should consider a new career - I'm turning into a different kind of geek.  If anyone is as excited as I am about such things, send me a message and I'll show you lots of places to watch for updates.  Or maybe order a shirt from thinkgeek:




Until we meet again...
Alli

Friday, June 7, 2013

Day 11

Day 11!  
We've gotten WAY more questions and referrals to friends of friends with kids with new allergies than we expected.  It's great!  (and a little scary!)  
Some good links for parents of kids with food allergies:
http://community.kidswithfoodallergies.org/ (great forums for parents to ask and answer each other)
http://www.ncfaces.org (local support group for parents of kids with food allergies)

Links for useful stuff:
http://www.allergyapparel.com (order cases, cooling blankets, holsters, etc..)
http://www.stickyj.com/medical-emergency-childrens-medical-ids.html (medical ID bracelets - lots of kid friendly options)
http://www.enjoylifefoods.com/  - the only actually good soft cookies that are top-8 allergen free that we've found so far. :)  You can get bars on amazon, cookies at earth fare, whole foods type stores.




Tuesday, June 4, 2013

Day 8

June 4th

This morning went fine - this is slowly becoming normal to serve up a small dose of applesauce and "allergy medicine" every morning at breakfast.  Both kids are getting used to this and the commentary on it is less each day.

Q and A time - we've gotten a lot of questions so here's our attempt to answer them.

  • Why did we do this?  We feel that the risk is better taken now in a clinical and controlled setting than later (in school for instance) when we won't be right there to help Patrick take the right steps if he has an accidental ingestion.
  • How did you find out about all this?  We've been following some folks in the Duke/UNC peanut trials, watching for trials for tree nuts US wide, and tracking some of the studies out of stanford.  (wouldn't you hope for a "cure" if it was you!?
  • What are SLIT and OIT?
    • SLIT - sublingual immunotherapy is where they dissolve a small amount of the allergen in a liquid and place it under the tongue.  It is one of the two common methods of administering an oral allergen during desensitization therapy or clinical trials.
    • OIT - Oral Immunotharpy - the allergen is ground usually into a powder and mixed with some very simple food (applesauce is common) - then eaten by the patient.
  • What are you guys doing?  We are doing OIT with one nut (walnut powder) and mixing it with applesuace.  The doses are tiny.  (barely a whiff of powder).  Our protocol is pretty similar to the one for the walnut OIT study at Arkansas Children's. (see link below)
  • Where can I read about SLIT and OIT and what's going on in the news?
    • NY Times article -  Stanford's Dr. Kari Nadeau and multiple desensitization trial
    • Walnut OIT study- Arkansas Children's Hospital - essentially can desensitizing a patient to 5000mg of walnut also help with desensitizing them to a second nut that was not part of the trial. "Dosing begins with a one-day walnut oral desensitization protocol. Starting at 0.1 mg protein and increasing every thirty minutes until a maximum dose of 6 mg is reached or until allergic symptoms develop. After the initial escalation day, subjects achieving at least 1.5 mg and up to 6 mg of walnut protein, will continue daily dosing with dosing build-every two weeks to a maximum dose of 1500mg walnut protein at 34 weeks. A daily maintenance dose (1500mg or the highest dose reached by 34 weeks) will be given for 4 weeks followed by a 5 gram protein oral food challenge to walnut and a 5 gram protein oral food challenge to the second tree nut (at 38 weeks), after which the study will be unblinded. Active treatment subjects will continue on the 1500mg walnut protein daily dose for a maximum of 33 months."
    • Duke Peanut OIT - article on their current results from their peanut trial
    • Spring 2013 newsletter from FARE - has an article on evaluating immunotherapies -  SLIT and OIT.
  • Where are you doing this?  In our allergist's office in the beginning and then at home.  Whenever the dosage is increased we'll be in the doc's office.  Day 1 was the entire day, day 2 a few hours.
  • What's the current dose? We're at 6milligrams right now.  A milligram is a few grains of powder.  It's pretty tiny!  That's about 1/100th of a walnut.
  • What's the desired result?  Initially - just some minimum of protection if he were to accidentally ingest a bite of something with walnut in it.  Long term - we're hoping for true desensitization and retraining his immune system not to over react to walnuts (and later other nuts).
  • Is there a guarantee that this will work?  Simply put, no.  But we wouldn't be going through this if we didn't think it was worth it and would improve his risk and potentially quality of life.
  • Is this right for everyone?  Of course not.  It's scary.  There are risks.  But we feel like the controlled risks are greater than the uncontrolled ones (when he's in school for instance).  The cost is also prohibitive if you're not part of a study (and we are not).  Asthma also complicates being involved in a study and often precludes kids (we fall into this category).  Asthma needs to be well under control or the risks would be much higher.  We couldn't start until we sorted out our asthma issues for several months.
  • What's the timeframe?  Roughly two years per allergen (nut in our case) - so we're looking at potentially 6 years.
  • Why doesn't everyone do this? We can't be 100% sure it will work to the point that he can just eat walnuts one day, it's a crazy long process, it's a lot of work and time, and it's expensive.  It's not an FDA approved treatment yet.  One day...

Keep them coming friends... we'll answer whatever we can :)