Are we overdosing Reclast???
Note: I have posted this elsewhere in comments but I don't think it was widely seen so I'm posting this here as it's own discussion.
Now to the point, YES, I think Reclast is being overdosed and that the the large dose given once a year is probably responsible for a lot of the bad side effects some people experience.
There is strong evidence in studies that lower dosages and altered infusion schedules produce very similar results and in one case superior results to the standard 5 mg dose of Reclast.
It becomes clear from studying the papers below that the motivating factors behind the 5mg yearly dose is convenience, patient compliance, money and they claim the greater good for the most people. They do not consider intelligent individualized medicine. Nor do any of these papers report anything other than temporary discomfort as a side effect. None of them seriously consider that a lower dose might be safer.
Before I list the papers supporting my argument that lower doses could be effectively and safely used I want to mention that maybe severe long term side effects are rare events and don't merit this attention. The short term flu like etc reactions are acknowledged but long term life changing side effects don't seem to be well reported for Reclast. I do not know how often or in what percentage of Reclast users these occur. Some reports could be coincidence and not due to Reclast at all. I do not know how to determine how real the threat of long term serious consequences is. So, for the purposes of this post I'm considering the serious long lasting adverse side effects of standard dosing of Reclast to be real, of unknown frequency and something to consider and try to avoid.
Here are three papers showing lower doses work just as well.
The first one compares 3 different doses and shows that 1mg does well, 2.5mg does best and 5mg does ALMOST as well as 2.5 mg. All three were one dose with result at one year.
https://academic.oup.com/jcem/article/97/1/286/2833555...
The second one alters dosing schedules depending on dosage. Combined with the paper above this is great information. They used dosages as small as 0.25mg quarterly with the same result as the large annual dose. It's behind a paywall but you can get a free account and get three free articles a month.
https://www.nejm.org/doi/pdf/10.1056/NEJMoa011807...
The third one compares 2mg to 4mg and concludes that we should stick with 4mg. BUT, if you dig into the details you see that there is reason to rethink their conclusion. Yes there is a tiny advantage to 4mg in the spine BUT there is a tiny advantage to the femur neck and total hip for the 2mg. Hardly what would make me call the 4mg superior and certainly not a significant difference. The difference in the spine is between 2mg gains 4.86% and 4mg gains 5.35%. So a gain of about 5% with either dose. As I said it flips the other way with the hips but they do not consider that even though their study shows it.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8420937/
What also needs to be considered is how often we are dosing Reclast and how the annual dose for osteoporosis may be too frequent and may be putting people at unnecessary risk of long term side effects.
I wanted to list a fourth paper showing that Reclast doesn't usually need to be given annually. That it often lasts as an effective dose for 18-24 months. I'm almost certain I saw a paper on this but I cannot find it now. What would be best IMO is to monitor CTX and only give another infusion when the CTX reaches a level indicating bone turnover is speeding up too much.
Interested in more discussions like this? Go to the Osteoporosis & Bone Health Support Group.
@awfultruth I like your alternative plan of risedronate, or alendronate in between two rounds of evenity. Hope you will use bone markers to monitor treatment progress. Keep us posted!
Just when I thought it was safe to be confident in my overdosing thesis I found this study (link below) suggesting that the greater the initial flu like symptoms (acute-phase reaction (APR)) to Reclast the more effective it seems to be in reducing fractures. BMD was not changed but somehow the greater reduction in fractures was in those who had the initial unpleasant and unwanted symptoms that everyone is trying to figure out how to avoid.
I'm not at all throwing out the idea that the dosing of Reclast is too high and too inflexible but, well,
the world is just so complicated. And of course this one paper is not proof positive by any means that more acute phase reaction is better, but it is definitely something to think about. The authors are quite reasonable and do not claim this to be "proven fact". I used to wonder about the same thing with covid shots - if I didn't have a reaction could I trust it was taking effect? Not to worry there as I typically had a day or so of feeling lousy.
Note that there is no discussion of the various long term bad reactions to Reclast that are talked about on forums. This is strictly in regard to those initial flu like symptoms.
Their summary suggests it may help those with an unpleasant 3-5 days after the infusion to know that they are getting extra benefit. They did not try to say those without reactions were not getting good benefit.
If you followed this logic you might forgo those efforts to mute reactions to Reclast like using Tylenol and Claritin. Though you certainly wouldn't forgo extra hydration because that's to help protect the kidneys. I'm not recommending this but just noting that if this were proven to be correct it might require rethinking a number of things.
BTW, one of the this papers authors (Ian Reid) was also an author for two of the papers about dosing of Reclast that this thread started with. Here's this new paper:
https://onlinelibrary.wiley.com/doi/epdf/10.1002/jbmr.4434
On that note, one of the winners of the Ig Noble prizes in 2024.
"fake medicine which causes painful side-effects can be more effective than fake medicine without side-effects"
In my experience, the initial reaction (I had 5 days fever on 20% dose) is not the problem. The longer term side effects are the problem. I would like to know whether they are dose dependent. If it is an immune or autoimmune reaction, I think it is possible that lower doses won't solve the issue.
@awfultruth just to be clear I agree about possible overdosing, I posted a similar thread about Evenity dosing. Results may tend to be better for most people, but for some of us, less is more.
I just don't think the system is going to change. Class action suites, reports to MedWatch and our complaints to doctors haven't changed the protocol. Again, I think the issues favoring the 5mg dose are money, time, convenience, compliance, and the need for infusions by cancer patients.
On an individual basis, we can ask our doctors for lower doses but they most likely will want to follow the protocol unless there is medical justification for a low dose (like my kidneys and afib). Failing that, a sort of guerilla tactic is to decline the full infusion (I declined the second Evenity shot twice). I think many people don't know they can do that: that is what I meant by "passive."
For many Reclast is not an evil drug and very helpful. Another endo- I forget his name but another poster sent it to me_ has a video on the positives of Reclast that was enlightening. My friends take it with no problems.
I happen to have severe reactions in the first 5 days and a variety of side effects (pins and needles, GERD, dizziness, neuropathy) that I don't like to discuss ordinarily but just to show I am in solidarity with those who are suffering. I have these even at a 20% dose which makes me wonder if dose is even relevant. I have lupus and a wonky immune system.
@windyshores I agree on the long term side effects being the big problem. It's certainly what I'm afraid of. If the only problem was flu like symptoms for 2-3 days I certainly wouldn't look forward to it but it would not scare me.
@windyshores On your thinking that the dosage may not be relevant you mention having side effects at a 20% dose so you wonder if dose is even relevant. Not to argue that you are wrong or in particular wrong about a drugs effect on your body - but I do think of it a bit differently.
And I think it is different for my body.
First thought was how do you know that you wouldn't have responded worse if you had a full dose?
Second thought along that line is that I've been extremely food and chemically sensitive for 40+ years. All those years if people asked me why don't you try just eating small amounts of a food and building up resistance to it. That could solve your problem. I would always reply that the dose didn't matter, I react to tiny amounts of foods I cannot eat (including those injections of minute amounts of whatever food was being tested). Anything I reacted to no matter the dose just made me more reactive for a few days. There was no build up of resistance or immunity.
Those discussions-arguments were sometimes pretty unpleasant to me and it was hard for me to have clarity and have a really nuanced discussion. I would argue that the tiny dose idea just would not work. I could react strongly to one blueberry I did not have to eat a bowl of them to react. There was not a safe dosage!
At my worst that was perhaps true. But looking back I think that probably a bowl of blueberries would probably have had worse consequences than the single blueberry. If you react to a single blueberry strongly it becomes difficult to judge things clearly.
I see I could go on forever with my thoughts about this. Maybe I can just say that even though emotionally I might have thought the dose didn't matter because one bite of something could make me feel bad for a day - in fact dose did matter and could make the reaction be stronger or last longer.
So this is not to argue against your experience but to suggest that there are many ways of reacting to drugs (and foods and all kinds of things) and that dosage could matter in different ways to different people. For me dosage does seem to clearly matter in most everyway I can think of. And of course that doesn't mean that a standard dose of Reclast will cause a problem for me but if I can get roughly the same benefit with a lesser dose of any powerful med I'm going to want that lesser dose.
@awful truth I honestly have no idea. I hope it was clear that I was wondering, speculating, just throwing it out there. I also react to foods, meds, etc. and some are dose dependent and some aren't. Intuitively, with Reclast it seems lower dose might have less side effects. I was surprised to have a fever for 5 days despite the low dose, one hour IV hydration, one hour infusion of 1 mg, etc. etc. My immune system is wonky so I always wonder what is due to that.
I think it's great that people are talking to doctors about side effects and requesting lower doses. My own doctor has adopted the Tymlos strategy of starting low with some patients as a result of our conversations. I expect that over time our individual accounts to our MD's could have an impact. But I continue to fear that the medical system will be slow to act or never act because it is financially and administratively difficult to give varied doses - unless the lower dose is once a year like the full dose, in which case no change for the system. We need definitive studies to show that that is indeed effective and safe, and those take time and money. I wonder if any studies are ongoing.
rn40, My sentiments exactly..."I would really like to find a doctor who knows more about osteoporosis treatments than I do, and who is open to discussion." Anyone out there know anyone in the Houston area?
I too would like to find a knowledgeable doctor in the Houston area! I'm on my 3rd endocrinologist in 3 years. The first moved to West Texas, the second failed to mention the helpful things to prep for a Reclast infusion such as hydration which is covered in the package insert and now I'm on number three. I liked three on my initial meeting but won't commit to her until I hear her take on the results of my November bone scan. If she's a keeper, I'll keep you posted.