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Thread: taking Ivacaftor?

  1. #11
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    Thanks for all the responses! I was informed about the liver levels needing to be checked q3months. Also have an eye exam scheduled to check for cateracts. But the doctor never mentioned getting a sweat test. Should I ask and push for it? The pancreatic function wasn't mentioned but she has always been sufficient. Did your daughter feel any different Sarah?

  2. #12
    My husband (53 years old) has been on Kalydeco since its release in Feb. 2012 (He's G551D). He has not been given a sweat test at all, but wish he would have. However, this year is the first summer he has really needed antiperspirant in his life, so clearly he's really sweating and I'm thinking he's at the normal level! He's always just salted up, which made him the dog/cat magnet.

    He had an initial spike in his PFT's (up to like 83%), but it has gone back down as low as 63%, but he's back up (April) to 67%

    Weight gain is easy now and he's had no adverse side effects of K. Good Luck!

  3. #13
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    Totally get a sweat test. It proves it's working. My daughter is so healthy she didn't feel different.

  4. #14
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    Quote Originally Posted by LunaFaith View Post
    I just saw my healthcare team and was told that I qualify for an experimental treatment protocol, apparently Ivacaftor now covers 23 mutations and I have one of those mutations. I am still waiting to see if I get accepted into the study, but I was wondering if anyone is/has taken Ivacaftor and what you think of the medication. I have already had the discussion with my doctor but I really just want to hear from someone who has taken the medication
    Hi! I just saw in another post here that you have one of the splice mutations that Vertex want to discuss label expansion for, the 2789+5G->A ? Do you know the name of the study you would participate in? Iím curious because I also have a splice mutation (pancreatic sufficient) but my mutation is so rare it is never included in any trials but Iím hoping that if more and more residual function splice site mutations become included in the label, then eventually all residuals - even splice mutations - will get *a chance to try Kalydeco. I agree with everyone else here that you should absolutely seize the opportunity to try Kalydeco!!

  5. #15
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    on my consent paperwork has this on it, hopefully some part of this is helpful, I also have yet to be contacted so I may not have qualified, they ran some blood work to see if what they need to be ok, is ok, I have no better way to explain that one, lol I also don't know what all they were looking for though I do know one thing was liver function
    University of North Carolina at Chapel Hill Consent to Participate in an Experimental Treatment
    IRB Study #
    17-0197
    Title of Protocol Ivacaftor Therapy Expanded Access Program for Patients with Selected Residual Function Mutations on a CFTR allele

  6. #16
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    Here's some more information regarding Expanded Access Program offered by Vertex that I think you are referring to:

    Program designed for individuals 2 years or older with specific residual function genotypes and severe lung disease meeting the following criteria:

    • One of 23 residual function mutations: 2789+5G- > A, 3849+10kbC- > T, 3272-26A- > G, 711+3A- > G, E56K, P67L, R74W, D110E, D110H, R117C, L206W, R347H, R352Q, A455E, D579G, E831X, S945L, S977F, F1052V, R1070W, F1074L, D1152H, and D1270N.

    • FEV1 of less than 40% predicted OR decline of 20% predicted in a 6 month period and sustained for 1 month OR being evaluated for a lung transplant

    This program is offered by Vertex and doesn’t go through your insurance. It’s not a clinical trial so info. can’t be found on clinicaltrials.gov. It requires that your treating physician file an IRB submission and get approval.

    Physicians must submit an application to Vertex on behalf of one of their patients that meet specific criteria.

    missme-
    Although your mutation isn't included in this program, there is the possibility (although remote) that if you have severe disease you may qualify for consideration for expanded access. It's not a specific established "program" as described above. But the steps to apply for access are similar.
    Here’s some general guidance offered by FDA on expanded access programs:
    http://www.fda.gov/NewsEvents/Public...se/default.htm
    As far as I know, expanded access is not limited to the US patients.

    Here's an article I recently wrote for the CF Roundtable discussing Expanded Access:
    http://www.cfroundtable.com/spring-2...sletter/#jump1
    (Sadly, despite it being required by law, Vertex still does not have the required expanded access information on clinicaltrials.gov)

    Here's a recent published case report of someone from Italy with severe disease who carries a splice mutation that has had great success with Kalydeco. I'm not sure how she obtained it, I'm guessing it was through the expanded access program that was described above.
    Poster Sessions
    42 Effects of ivacaftor in an adult patient with cystic fibrosis who carries the 3272-26A → G mutation, resulting in residual functioning protein, and has severe lung disease
    http://www.cysticfibrosisjournal.com...17)30407-1/pdf

    Good Luck to both of you.
    45 y/o with CF (R334W and DF508)

  7. #17
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    Thanks Jeannine for your efforts to inform about the EAP! I don’t know if the Vertex’ EAP’s are valid in Europe but knowledge about these modulator drugs is really lacking here… So these are only for investigational drugs? And for drugs that have been approved but not yet for some mutations or age groups? What about when a country hasn’t yet agreed on a price for Orkambi? Would people with less than 40% FEV1 be able to benefit from the EAP/compassionate use while waiting for an agreement? *

    This particular EAP on residuals must have changed a bit since most of the mutations listed above have been approved by the FDA recently. The 2789+5G->A that Lunafaith has is among the 5 splicing mutations with residual function that Vertex is still discussing with the FDA, so they would clearly be included in a EAP. ( These are the 5 splicing mutations I referred to: 3849+10kbC->T, 2789+5G->A, 3272-26A->G, 711+3A->G, E831X). I am just wondering if they have included even more splice mutations than those 5? I still don’t know why they have been so slow at including splicing mutations with residual function (class V)? Does someone know why? I also read somewhere that in vitro testing on class V splicing mutations with modulators (that can only be Kalydeco) is less reliable than in vitro testing on other mutations. Does anyone know anything about this? If so, then using organoids to achieve personalized medicine for rare mutations is going to be miss leading if the in vitro shows no effect whereas the in vivo effect could have been great. I wonder if this is the reason why splicing mutations are the last residuals that are investigated for the use of Kalydeco and that only lab tests weren’t enough for the FDA to get their approval? In that case they should offer N-of-1-trials for every single individual with a class V mutation!

    LunaFiath: fingers crossed you will be accepted for this EAP!

  8. #18
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    I thought I'd tag everyone in this tread to make sure they are aware of lastest Vertex press release:
    http://forums.cysticfibrosis.com/sho...ions?p=1083508

    LunaFaith- it looks like you'll be trying Kalydeco soon! Please give us updates on your response.
    45 y/o with CF (R334W and DF508)

  9. #19
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    My daughter just had her eye exam today and it went well! Now we just wait for the rest to process. I'm getting nervous about her starting Kalydeco. I have high expectations for this to be the "miracle" that other people have experienced. Nervously anticipating the unknown!!

  10. #20
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    Quote Originally Posted by Jeannie85 View Post
    My daughter just had her eye exam today and it went well! Now we just wait for the rest to process. I'm getting nervous about her starting Kalydeco. I have high expectations for this to be the "miracle" that other people have experienced. Nervously anticipating the unknown!!

    I hope she does well with it. I remember how exciting that first dose was. I was so hopeful that it would work, but yet so worried that it wouldn’t-- lots of mixed emotions. I know you had concerns because you weren’t sure how to know it was working because she doesn’t have symptoms. I’m not sure what you decided to do in regard to getting a post-Kalydeco sweat test done to assess response; but I wanted to mention that you can have a clinical response to Kalydeco without much change in sweat chloride levels. My sweat chloride decreased some, but it wasn’t dramatic. But my symptom improvement was dramatic. I’m not saying it’s a bad idea to get a sweat test post-Kalydeco to compare the results. If there is a decrease, that’s an indicator that it may be working. But just keep in mind if there isn’t much change, that doesn’t necessarily mean that it’s not working. It was mentioned in another thread how one of these residual function mutations, A455E, actually showed a very significant increase in sweat chloride (+27) in a few people after starting Kalydeco, which was shocking and concerning. There's no data to tell us what happens clinically when there's a significant increase in sweat chloride, but it would seem that it may worsen symptoms. I really hope Vertex and/or the CFF are carefully tracking post-marketing data since some of these mutations weren’t represented in the study and they based results on preclinical in-vitro laboratory data.

    I was reading that the Lung Clearance Index is a test that's being used on younger children to assess early lung damage that isn’t yet measurable on PFTs. It’s a very sensitive test that detects changes in small airways (site of early CF lung damage).
    So I’m wondering if it would make sense to get this prior to starting Kalydeco to have something to compare down the road. I don’t know much about this test at all. I’m not sure what’s involved, how invasive it is, or how expensive it is. But I thought I’d mention it so that you can discuss it with your doctor.

    Here’s an case report abstract that also demonstrates that no change in sweat chloride can still equate to a very positive clinical response:
    http://www.cysticfibrosisjournal.com...17)30407-1/pdf
    Last edited by jricci; 08-07-2017 at 11:37 AM.
    45 y/o with CF (R334W and DF508)

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