The #Qcollar jugular compression device is "FDA CLEARED" to "protect athletes' brains during head impacts." @US_FDA
Does this mean that it is safe, effective, and based on sound science?
Not quite! Before you believe the company's big claims, read this full thread!
Below is an index to my fully-referenced thread:
2/ A bit about what FDA cleared really means 3/ Critique of the study that got Qcollar FDA cleared 4/ Summary of problems w/ their other studies 5/ Qcollar's continued pattern of false claims 6/ Their plan to profit from taxpayers
2a/
Some semantics, note this isn't "FDA APPROVED" but rather "AUTHORIZED".
QCollar isn't claiming "approval," but many confuse these terms and assume this more stringent standard.
APPROVAL is more appropriate for Class III devices, which undergo more rigorous review.
2b/
Qcollar was granted market approval through "de novo request." It's like a registration to market the device.
This means it's a new device classification for FDA, not comparable to other devices. NOT saying it's as safe/effective as another device (eg, helmets).
2c/
Level of evidence required for FDA clearance is dependent on the device's risk classification.
QCollar is a Class II device, which means it is lower risk (not as stringent of a review process for Class III devices, which have greater risk).
The trial protocol was registered, but details aren't clear. For example, only generic description of brain MRI given, rather than specific regions.
Registered protocol mentions a control group of distance runners, but they are never mentioned in the paper. Why not?
3e/
Many of other issues in the study, esp. inconsistencies w/ other Qcollar studies, incl. a soccer study that seemed to come out of the same protocol. Similar issues as discussed in Part 4/
Nice summary tweet by @griz1 - I'm not the only skeptic!
Research on Qcollar is funded by the parent company, Q30 Innovations. That disclosed, but important! They paid >$3 MILLION for the data.
The research papers often say "cautious interpretation" is necessary, but such "caution" is not reflected in marketing materials.
4a/
Since 2017, I've published a number of peer-review papers discussing why the Qcollar is highly flawed.
Why? Bc, I don't want athletes to get duped into buying something that sounds scientific, but doesn't work, and for them to find that out once its too late (eg #CTE).
4b/
I've covered those papers in previous threads. Let's focus on the clinical data - the special MRI technique called DTI.
Read the thread linked below. It covers this COMPLEX topic in great detail.
The average consumer doesn't understand how to interpret. So, when Qcollar says "it protects the brain" people think the evidence is straightforward. It's not.
Here's a simpler explanation of why their data are wide open for interpretation. @ACSHorg
Prior to showing that the DTI data isn't solid evidence of "brain protection," I focused on the ORIGINAL claims that Qcollar made - that their product would REDUCE THE RISK OF CONCUSSION.
In a 2014 @nytimes editorial titled "Can animals help limit concussions?" the lead Qcollar research makes it sound like they have actually directly observed woodpeckers (i.e., "we have observed").
Here, they also specifically address "concussions"
I debunked these woodpecker claims in the peer-review literature. @BJSM_BMJ
Nobody else has ever claimed woodpeckers have this jugular compression mechanism, except for those behind the Qcollar (telling a cool, but made up story to investors).
After I debunked this claim in the peer-review literature and social media, they knew they got caught making up "facts" about woodpeckers that weren't true.
So, the story had to change - check out this Feb 2020 video, beginning at 6:35 or so.
5f/
He states that in the USA, "woodpeckers are an endangered species," and that is why they couldn't actually study them hand-on.
That's an easy one to objectively fact check. It's simply not true! (See next)
Creating new false claims to cover up previous false claims!
5g/
First off, "woodpecker" is not one species, there are many.
If you search the @USFWS Environmental Conservation Online System, you can find many different species of woodpeckers. ecos.fws.gov/ecp/
MOST are classified as "Not Listed" (i.e., Not Endangered).
Example
5h/
The other organization that decides if something is an "endangered species" is @IUCN. @IUCNRedList
And MOST (not all) species are "Least Concern" (LC) - which basically means "not endangered."
5i/
They studied woodpeckers...
until they didn't really... b/c they are endangered (even though they really aren't).
Many of their videos referencing woodpeckers have been removed. Delete the evidence of false claims!
How can we trust ppl behind Qcollar and their "science"?
5j/
Why does this woodpecker claim matter at this point?
Because it represents how they were willing to use false information to market a product.
If they're willing to invent a story about woodpeckers to sell product, what's stopping false claims about "brain protection"?
6a/
Since Qcollar doesn't protect against preventing concussion in sports, it also should not work for military applications (head impacts and blast injuries).
The goal has been to sell this non-sense technology to the DOD (at taxpayer expense!)
It's hard to know details about what this was for, but public information demonstrates those behind Qcollar have spent at least >$400,000 lobbying Congress regarding "Defense policy and acquisition matters."
If you don't understand the highly nuanced #MRI technique known as DTI, these results sound straightforward and convincing.
THEY ARE NOT. Don't be fooled by these numbers!🤔
I will dissect these in the thread below.
3a/
"No significant changes" is based AVERAGE response, not individual.
First, an easy-to-understand analogy below.
If half the sample experiences an increase and half experiences a decrease, they can cancel each other out to falsely suggest "no change" when one does exists!
The #Qcollar is based on the idea that jugular compression increases blood in the brain to create a "bubble wrap" effect, which prevents the it from bouncing around inside the skull.
According to the company, this mechanism is found in Nature. bit.ly/2KqTJvS
Thread/2b
From the company's promotional video, the device is justified based on reducing brain "slosh" by:
1) Replicating the animal adaptations (see 18:00 in video) 3) Replicating effects of "higher altitude" exposure (see 21:57, again at 36:00)