Todd, Kudzu, Gregg, ClusteredChef, and Michael,
Thank you for the SITREPs and the results of your 25(OH)D labs while on the anti-inflammatory regimen. This is really helping to define the optimum 25(OH)D range for CH'ers and the efficacy of this regimen. That includes reports that "It's not working" or "No Change" as they help define the lower bounds.
I've been collecting data on 25(OH)D levels reported here at CH.com and by direct email with respect to CH activity for the last few months.
For the CH'ers who were experiencing active CH attacks and had the lab test for 25(OH)D done either before starting this regimen or within a few days after starting it. So far, all were ≤ 105 nmol/L (42 ng/mL). In short, this data supports a general statement, that all of the CH'ers who reported their results of this lab test with active CH, were vitamin D3 deficient...
Think about that for a minute... Is the relationship coincidental as most of us are vitamin D3 deficient unless we're supplementing or one of the outside trades out in the sun with skin exposed for several hours a day... or is the relationship causal?
Could CH be like Rickets where a vitamin D deficiency or impaired metabolism of vitamin D3 causes a softening of bones in children... or in our case, where something in the pathophysiology of cluster headache is enabled by the same deficiency or impaired metabolism of vitamin D3, magnesium, phosphorus or calcium? You decide...
CH'ers who have gone pain free dosing on vitamin D3 at 10,000 I.U./day and had this test done after 30 to 90 days while on this regimen reported 25(OH)D levels in a range of 150 nmol/L, (60 ng/mL) up to 225 nmol/L, (90 ng/mL)... Todd, you're in the zone... Good on you...
We still have exceptions... One CH'er who has been working closely with his primary care physician and having his 25(OH)D as well as Chem panel and CBC tests done monthly, reported his 25(OH)D at 295 nmol/L (118 ng/mL) at the 90 day mark while dosing at 10,000 IU/day vitamin D3.
As high as these levels may sound, they're well below the vitamin D3 intoxication threshold of 500 nmol/L (200 ng/mL). Although he's not completely free of his CH, he's not lost any time away from work because of them and the few CH he does have are easily managed with oxygen therapy.
We're learning a lot about the effect of this regimen on CH... and there's clearly more to be learned. Time to a therapeutic response, (experiencing a significant reduction in the frequency and severity of their CH or going pain free), has been reported by most at between two days and three weeks with the majority experiencing relief from their CH by the end of the second week. A few have taken longer.
We've also learned from a number of studies that we would need to take significantly higher doses of vitamin D3 than 10,000 I.U./day to reach the lower threshold for vitamin D3 intoxication.
The Vitamin D Council at Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to
or
lists the toxicity threshold level at 500-750 nmol/L, (200-250 ng/mL). Lots of great information about vitamin D3 and the cofactor mineral supplements on this site.
Another great site for vitamin D3 information is Grassroots Health at Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to
or
Their home page features a plot of 3667 people who have had lab tests for 25(OH)D collected every six months during their participation in an international survey hosted by GrassRoots Health that started in 2008.
The voluntary participants in this survey have been taking a range of vitamin D3 doses from zero to 10,000 I.U./day while having their 25(OH)D level tested every six months. There's a $60 fee each 6 months for sponsorship in the 5 year project which includes a complete new 25(OH)D test kit, new questionnaire entry and reporting of results.
The most significant finding from this survey is all participants dosing at ≤ 10.000 I.U./day vitamin D3 have remained below the vitamin D3 intoxication threshold of 500 nmol/L (200 ng/mL) 25(OH)D.
I found the attached paper on Anticancer Research titled:
Vitamin D Supplement Doses and Serum 25-Hydroxyvitamin D in the Range Associated with Cancer Prevention that used data from the GrassrootsHealth survey above. It has a table that shows that over 300 participants have been dosing at 10,000 IU/day as illustrated in the graph on the GrassrootsHealth home page, many for more than a year at this point... and all remain below the vitamin D3 threshold for toxicity.
I've sent the authors of this paper an email asking for a breakout of participants dosing at 10,000 I.U./day with their 25(OH)D response curve over time in six-month increments as far out in months as the data supports... I'll let you know if and how they respond...
The raw efficacy of the anti-inflammatory regimen as a CH preventative is encouraging... As of the end of October, nearly 100 CH'ers have reported starting this regimen here at CH.com, at ClusterBusters, or directly to me by email. 70% reported a significant reduction in the frequency and severity of their CH and most of them have gone pain free.
Granted these results are anecdotal and some of the successes could be due to end of cycle or to a lesser extent, the placebo effect... as Michael pointed out. Nonetheless, the dramatic change in quality of life experienced by the 70% while on this regimen is difficult to explain any other way...
9 CH'ers have reported it didn't work and stopped taking the regimen. None of them reported having their 25(OH)D levels tested. 4 of these 9 gave up after two weeks. 2 of the 9 may have experienced allergic reactions to one or more of the anti-inflammatory regimen supplements. The remaining 3 reported other medical problems. It's possible that some comorbid conditions interfere with this regimen.
It's comments like this that add more definition to the efficacy not to mention good reason to see your PCP or neurologist about this regimen. And when you do, have the 25(OH)D and other labs done if you've been on this regimen for more than a month and have not experienced a reduction in the frequency or intensity of your CH.
The remaining 21% are still in the hunt. They haven't experienced the same favorable response as the others, but they're still taking this regimen... and building 25(OH)D levels... That implies a margin of uncertainty to the 70% efficacy of ±21% as these CH'ers could go either way...
The simple fact is we don't know if CH'ers in this category are going to respond more completely or not at all to higher 25(OH)D levels. The good news is the Grassroots Health data appears to give us room to try without fear of experiencing vitamin D3 intoxication...
That said, even though dosing on vitamin D3 at 10,000 I.U./day is far less risky than taking verapamil, depakote (Valproic Acid), or the off-label anticonvulsants frequently prescribed to prevent CH... pushing 25(OH)D levels higher than 200 nmol/L (80 ng/mL) should be done under a physician's supervision with monthly labs for 25(OH)D, Chemistry Panel and CBC.
I think Michael hit on an important point... Giving our body what it needs to combat CH may be a lot better than taking the more invasive prescription medications with onerous side effects to control the symptoms...
That brings me to the closing point... I'm just an old retired fighter pilot and not a doctor even though I did stay at a Holiday Inn a few years ago... but I've learned a few things over the years that tend to keep life in balance... A 70% solution is like low hanging fruit... if it works... go for it and stick with it... If you screw up... unscrew it if possible...
Moreover, one of life's more enjoyable moments for a pilot is walking out the door saying... "I'm out to launch" like Michael did... then take a sail plane up for a few hours of breathtaking circuits over the Alps... with only the sound of your breath and wind over the canopy in your ears... Awesome...
There's little in life that compares with strapping on an aircraft and slipped the surely bonds... as the prayer goes... Flying through the sky leaving life's problems behind you on the ground does something to you...
The joy of flying and sense of freedom it brings is so exhilarating it leaves you with a heightened sense of awareness... In that respect, it's a lot like going pain free from cluster headaches and knowing why... You're in control...
Thanks again and take care.
V/R, Batch