I have a great comment string going on with Daniel MacArthur over at his blog Genetic Future
I think there is some confusion going on here and I place blame on just about everyone in this space who has a mouthpiece.......
But mainly I lay blame on the marketing teams for the Direct to Consumer Genomics companies.
These companies have an interest in making you "think" that their products have some particular health relevance.
Otherwise, no one in their right mind would waste their time with these tests.......Other than the HUGE field of ancestry buffs like Blaine Bettinger J.D. (woohoo) We need clarity here.
From Daniel- "The American College of Medical Genetics is saying "Genetic tests of individuals or families for the presence of or susceptibility to disease are medical tests."
The fine print says:
"This guideline should not be considered inclusive of all proper procedures and tests or exclusive of other procedures and tests that are reasonably directed to obtaining the same results. In determining the propriety of any specific procedure or test, the geneticist should apply his or her own professional judgment to the specific clinical circumstances presented by the individual patient or specimen"
Meaning
"The judgement of what constitutes an inclusive test is left up to the physician"
In my opinion, there are Green tests, Yellow Tests and Red Tests. I think Ryan Phelan sized this up pretty eloquently in 2007 at a conference I spoke at with her.
Red means - Stop, does this test need analytic/clinical utility/validity? Yes, Go ahead and regulate, these are clinically validated/used clinically for a long time, tests which have a use in medicine. If this test is claiming to do so but does not, then this too should be a cause of regulation.
Yellow means - Well, this could be used but maybe hasn't yet. I think of Age Related Macular Degeneration testing. They could have clinical applicability and haven't been put to use yet. This category may also include low odds ratio common SNPs here which indicate risk FOR disease.
You should have some caution when selling/regulating these tests. The biggest problem is that with evidence evolving over time the low ORs may actually be overturned or fall into the Red category.
They key point is what the test claims to do here.
Does it claim to tell you a risk for a disease via algorithm etc.?
If yes, then it becomes a Red test.
If it says in huge disclaimers, this test DOES NOT PREDICT DISEASE RISK, in plain and clear writing on every piece of its marketing then Yellow tests stay Yellow.
Green Tests - Have absolutely nothing to do with a person's health. These tests do not need medical regulations. Ancestry could be here. Eye color/ear wax/height.
But the moment it is used for medicine or medical procedures (PGD for these things, scary but possible) it then becomes a Red test.
ACMG is talking about Red tests. It is also saying, if you as a clinician think a Yellow test is actually a Red test, then it is a Red test.
Which I agree is confusing. But ACMG is not the US or State Governments. Nor is it the UK or anywhere else's government......It is a professional organization.
My take is simple. If there is a risk for public harm, the government should protect its citizens from that harm in a reasonable manner. I emphasize, reasonable manner. What Techies in the Silicon Valley view as unreasonable regulation may very well be extremely reasonable in the view of physicians and hospitals......
There is no reason to get all crazy here. The New York Times is right, until the government or state governments step in to protect the citizens of risk, it IS Buyer Beware when it comes to genetic tests.....
In my mind, genetic tests need to prove their worth in the field of medicine. They do this by medical science and clinical science studies.
Without these, they are useless noise.
So, should you be able to buy useless noise?
Go ahead.
But the moment the noise whispers in your ear "PSSST, I can tell you your risk for diabetes for 50 dollars" Its A$$ should be regulated.
I hope that clears things up. The problem here is that you have a company selling you noise mixed with clinically valid tests. They are the first company whose A$$ should be told to hold up and split the products.
Then you have a company selling you noise all the while "inferring" it is actually predictive and useful in medicine by getting Doctors to use it in medicine should also be regulated.
Blame Marketers and Spin Men, just like "Thank You for Smoking"
The Sherpa Says: If you apply the Red, Yellow, Green interpretation scale you will soon understand why all the confusion exists. And how that confusion can be cleared up.
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