
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.
Thursday, September 3, 2009
Some Confusion Exists
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5:03 AM
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Labels: 23andme, deCODEme, francis collins, Helix Health of Connecticut, IOM, Muin Khoury, navigenics, pathway genomics
Wednesday, August 19, 2009
Family History, State of the Science

The NIH/CDC is hosting a conference next week. I conference I wish I could go to, but alas, I will be DOING family histories on my patients that week.
The conference will be held at the NIH in Bethesda. This is an NIH state of the science conference about Family History and its usefulness.
I for one, am very glad that the government is trying to address this super important issue. It is beyond due for an evaluation.
Why?
With the cost of a genome going to drop to 5000 USD by the late fall (trust me), we will soon see another level of DTC and Clinical lab set offering the genome as a predictive tool.
There are several reasons that Family History beats a Genome (For Now)
1. Phenotypic data of family history represents complex interplay of genes and environment
There is no way that a simple genome will be able to give us the story of how a human will develop. That is predicted by environment and genes, which are successfully covered by..... A family history.
2. 5000 USD is still more than what it costs to obtain a family history.
By the time the software tools are released, we will see that social networking and the internet will transform the costs of family history next to nothing. Which is still a long way to go for the genome scans.
3. We have no clue what most of the genome data means.
Indels or CNVs or SNPs, we have no freaking clue what most mean, we do know what a heart attack at 40 means.......
4. Even if we had everyone's genome scans, we would still need phenotypic data and pedigrees.
What's the one thing we do when we have an intellectually delayed child with an abnormal CMA/CGH? We test the parents. Looking for THEIR phenotypes to make sense of the genome mess.
Look, people always give me reasons why the genome is important and a family history is useless.
I've heard them.
-"We don't speak with that side of the family"
-"My father lived with his uncle, because his father died (secretly running the empire as Darth Vader)"
-"I was adopted by Bail Organa, only to find out I have a lost twin brother"
There is one thing that will always be certain over time, there will be some screwed up family dynamics making it difficult (BUT NOT IMPOSSIBLE) to obtain an accurate family history.
That being said, it is still often useful to capture those who you can. And still less expensive.
I look forward to the briefings from this conference, and Muin, if you are listening, I would love to have the link to the webcasts.... Oh wait, they have that too! Sweet.
If you can't be there, you can get the information you seek!
Once again, we need a state of the science on genome prediction, not a consensus statement a real eval of the state of the science. When placed side by side with the state of the science for a family history, we will soon see why family history is the preferred screening tool and will likely to continue that way, perhaps in conjunction with a genome scan, but genomes will NEVER replace family history.
The Sherpa Says: The press better be at this conference and report on Family History. And to the founders of Geni.com, you missed on this one when Tindall presented to you. Or maybe you just are going to steal the idea.........
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4:50 AM
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Labels: ancestry.com, CDC, family history, francis collins, gene genie, gene sherpa, geni.com, Helix Health of Connecticut, Muin Khoury, NIH
Wednesday, May 6, 2009
Lots to recap today.
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Steve Murphy MD
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5:30 AM
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Labels: 23andme, biologos, DNA direct, dna dynasty, drudge report, francis collins, Helix Health of Connecticut, navigenics
Saturday, February 7, 2009
Like I said........
If you have been following me at this blog for any amount of time, you know that I have been a careful watcher of these GWAS studies, and the testing companies who sprung up after them.
I have been skeptical of most of these studies unless they have had replication and fairly large Odds Ratios or Relative Risks........why? We are looking for clinical relevance and asking what can we do with this to better our patients lives........
Personalized medicine relies on several things but these 3 are absolutely needed: Prediction, Prevention and Privacy. It is rich in fields like Cancer Genetics, PGx, Preconception Genetics.
You see Personalized medicine is not just Prediction, which these DTC companies are touting, it is therapies and action......which, these tests unfortunately are lacking in.....
Unlike Pharmacogenomics....
To put it bluntly.....based on our current knowledge of what these SNPs are and what they do,
Consumer Genomic Testing is of:
Extremely Limited Clinical Value
We saw this with 9p21.3 one of the most significant findings in this arena.
Yesterday an article was released in PLOS which I just linked to which states that case pretty effectively.
I often say, that once a discovery is made of a gene or SNP or etc.....it will require at minimum 5 years to come to clinical utility.....So how could any company sell something prior to this under the auspices of medicine???
The conclusion from the PLOS paper:
Our analyses and examples show that strong association, although very valuable for establishing etiological hypotheses, does not guarantee effective discrimination between cases and controls. The scientific community should be cautious to avoid overstating the value of association findings in terms of personalized medicine before their time.
Association is NOT causation, nor is it actionable.......
Most of this small time SNP data comes through in guess what????
Family History!!!!! (five exclamation points for Daniel)
The Sherpa Says: Family History is FREE!!!! And Soon SNP testing will be too.
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1:05 AM
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Labels: 23 and me, barack obama, deCODEme, drudgereport, existence genetics, francis collins, Helix Health of Connecticut, navigenics
Wednesday, December 31, 2008
2009, Kansas is going Bye Bye!
Finally, what you all have been eagerly anticipating.
The Sherpa's Predictions for 2009.
Mind you they come in 3 groups. Highly likely, Possible and Ridiculous
Highly Likely:
1. Francis Collins will become the director of the NIH and collaborate with Kari from Iceland to create a national database of genomes. This is the only way to jumpstart personalized medicine. My feeling is that Kari knows how to do this, is a friend of Francis, and Obama is likely to give him the greenlight on this, despite public sentiment....
2. We will see our first lawsuit for a pharmacogenomic cause. My colleague over at ASU, Gary Marchant says it will only take one and the flood gates will open. The lawsuit will be based on something called "Loss of Chance" doctrine. The theory goes, "did you cause the patient to lose a chance at a better health outcome?" If the answer is yes, well then you can be sued. This recently has been the case for delayed diagnoses in several states (24 to be precise). All it takes is one smart, enterprising, hungry attorney to go after this....I can see it now.
Plantiff's attorney(PA) "Doctor, who is the FDA?"
Doctor(MD): "The US Food and Drug Administration"
PA "and what do they do?"
MD: "FDA provides safety information on drugs and other FDA-regulated products, and allows for adverse event reporting."
PA: "Would you use a drug that was not approved by the FDA?"
MD: "No"
PA: "Doctor, would you mind reading this label?"
MD: "…genetic variations in the CYP2C9 and VKORC1 enzymes may influence the response of the patient to warfarin.” In the “Dosage and Administration” section, it states that lower initial doses should be considered for patients with genetic variations in CYP2C9 and VKORC1."
PA: "Doctor, what is the genotype of the defendant Mr. X?"
MD: Silence....
PA: "Doctor?"
MD: "I do not know"
PA: "Doctor, why do you not know everything you need to know about a patient PRIOR to giving this deadly rat poison"
MD: Silence
PA: "Doctor, is there evidence showing that patients with poor metabolism would need a lower dose than the one you prescribed Mr. X?"
MD: "Yes, but......"
PA: "But what doctor? Why would the FDA put something on the label if there wasn't solid evidence behind it?"
PA: "furthermore, if you knew your patient had a liver problem with metabolizing the medication, would you give the dose you gave to Mr. X?"
MD: "Well, hepatic dysfunction is (cut off by attorney)
PA: "CYP2C9 genetic mutations ARE hepatic dysfunction doctor"
I think you get where I am headed. In economic lean times, people will try anything....and this sure is like the Statue of Liberty play. It WILL score a touchdown, that's why people still run it.
3. We will see George Church's Exome project results and they will certainly confuse all of us as to what it really means. We may even see a broken ladder?
Possible:
1. We will have an X-Prize winner. If PacBio and the black box known as Complete Genomics work out, this will be ready by November 2009. Seriously.....now, to sort out what the hell it means......We need a database, someone to actually take liability (Unlike the chickeSh!^ companies today), and someone to counsel on this.....do you really think 2700 people is enough???? That is only a cool 111,533 people per provider......at 2 hours per evaluation that is only 223,066 hours of work, only 9294 days of straight work, or 25 years straight!.....give me a freakin break NSGC/ABMG/ABGC/ACMG!
2. Mr. Stoicescu sues KNOME for a 345,000 USD refund. It could happen, the oligarchs lost a ton of money last year. I am sure he could use the money back in exchange for Complete Genomics Genome evaluation.
3. Oprah will have a third hoax on her hands as she discovers her genome scan was bogus. 3 strikes and your out Oprah!
Ridiculous:
1: Mark Cuban will buy the rights to 23andMe's database. If I have at least one thing, it is tenacity.....this one will happen
2: A new technology called next-next-next-next gen sequencing will debut and have your genome done in 15 minutes. They will say the technology will be ready for prime time in 2 years.
3. The United States will fracture into 6 territories controlled by Russia, Mexico, China, Canada....I think I played this game in the 1980s.
The Sherpa Says: Happy New Year! May the new year be as good for you as it already has been for me. Here's to personalized medicine in 2009!!!!!
Posted by
Steve Murphy MD
at
9:13 PM
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Labels: 23andme, barack obama, coriell personalized medicine collaborative, deCode, francis collins, Helix Health of Connecticut, navigenics, recession
Wednesday, December 24, 2008
We have no clue what it really means....Merry Christmas
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Steve Murphy MD
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3:17 AM
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Labels: 23 and me, brave new world, deCode, francis collins, iceland, navigenics
Wednesday, July 30, 2008
All people have time bombs!
I received an email from a colleague that said..."interesting.....click here."
Ok, so to anyone surfing on the internet probably not a good thing to do right? My friend likely has a virus on his cpu, right? Well, being the avid risk taker I am...I click. Guess what I find.
A blog called the Belligerati...interesting name, but the blog has argument is all wrong.
"Many will see the headline Congress Passes Bill to Bar Bias Based on Genes and be pleased.
The legislation, known as the Genetic Information Nondiscrimination Act, prohibits health insurance companies from using genetic information to deny benefits or raise premiums for individual policies. (It is already illegal to exclude individuals from a group plan because of their genetic profile.)
Employers who use genetic information to make decisions about hiring, firing or compensation could be fined as much as $300,000 for each violation.
Not me."
The blogger then goes on to detail why they think it is a bad thing. The major argument and one I have been seeing a lot of lately is based on pure fallacy and demonstrates how a very smart and educated person can be completely illiterate in genetics and genomics. I would say that about 10% of the population understands genetic risk when explained to them....that's about it.
From the blog:
There are many forms of luck in our society that we allow people to capitalize upon. For example, citizens keep the majority of the returns from wealthier parents, natural talents, being born into a rich and free society, their appearance, and temperament. Yet congress has passed a law that says that people may not capitalize upon their generic luck. This makes us less free, and ultimately less wealthy as well.
Genetics as luck....interesting. Perhaps they don't know that most heritable genetic changes are for the bad. Mistaken concept 1, in addition, Genotype + Environment = Phenome.
What sense of justice legitimizes forcing those who are poor but blessed with rich genetic endowment of healthy genes subsidize those that are middle class and endowed with a genetic propensity for several diseases? As I have said before on this blog, the way (the just way, if any) to address the suffering in our society is to give money to the poor. These back door methods, like this genetic non-discrimination rule, are often more unfair then the ills they prevent
This is super Bass-Ackwards. What sense of justice forces those with no control of their poor genetic make up to be excluded from health insurance....Man...this blogger is crazy.
His argument is that by genetic testing we should benefit from our "protective genetic make-up" and that GINA will prevent us from doing this.....
The second concept I want to clear up for everyone is this. "We can test for healthy genetic variation".....Let's get this straight. We know very little about the genes in our bodies that are protecting us from crappy environment. Eric Topol talks about this. For a cardiologist, this guy has done a great job of becoming a genetics Hacker! He says we should study the healthy, not the ill. I think he is right.
The third concept......we understand what genetic changes cause common disease. Let's get a clue. We know that several genetic changes have been weakly linked to (to be read as associated, not causative) common diseases. We also know of some very strong monogenic links to diseases like cancer and heart disease. But these are not the most common.
Francis Collins says "Everyone has at least 5 or 6 genetic time bombs in their genomes"
From the guy who headed the HGP....I'll take it at face value. We will only know this for sure by doing whole genome scans on everyone. By whole genome, I don't mean these chips that "claim to be whole genome" I mean, base by base, methylation by methylation, histone change by histone change, genome sequencing.
So if that is the case....why should insurers test for something that no one knows is a risk or protective allele. To them, it makes no sense to have meaningless data. But to have accurate tests for actuarial evaluation. That would be most worthwhile. My guess is that if they were to use this unvalidated and suspect data that everyone would be getting higher rates. So this argument from the Belligerati demonstrates the lack of genetic knowledge even in the most sophisticated and educated public.
There are other arguments against GINA. But I say, right now it is the best start we have at protecting our citizenry.
"GINA is the first major new civil rights bill of the new century," said Senator Edward Kennedy (D-MA), who cosponsored GINA in the Senate with Senator Olympia Snowe (R-ME). "Discrimination in health insurance and the fear of potential discrimination threaten both society's ability to use new genetic technologies to improve human health and the ability to conduct the very research we need to understand, treat, and prevent genetic disease," said Kennedy
I agree wholeheartedly. With so many people having at risk alleles.....in these SNP studies at least 1 % of the population has to carry these SNPs....That means 3 million people at a minimum are at risk of one thing or another. Genetic Discirimination is the new racism.....I hope not to see its ugly head rear for a very long time.
The Sherpa Says:
Confusion and misinformation can lead to making poor choices. That is why I advocate for education and guidance in the field of genomic medicine. How can we expect even the most sophisticated population to understand this on their own? It tooks me years of study to be where I am. And I learn something new every day! That's why we are going to launch a brand new wave of education and service shortly......
Posted by
Steve Murphy MD
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7:56 AM
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Labels: framingham heart study, francis collins, GINA, Helix Health of Connecticut
Thursday, June 26, 2008
ABC, Misinformation and Government Regulation
I have to comment on something. ABC news tonight covered the whole drama in California.....But they really didn't. In fact they gave 20 seconds (approx) to the fact that the government was finally regulating this industry....they did even manage to squeeze in that the FTC is investigating deceptive advertising.
Posted by
Steve Murphy MD
at
4:59 PM
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Labels: 23 and me, alzhemiers, alzmirror, deCode, deCODEme, DNA direct, francis collins, Helix Health of Connecticut, navigenics, rudy tanzi
Tuesday, June 17, 2008
A$$ Kicking
Article 17 (Tests predictive of genetic disease)
Tests which are predictive of genetic diseases or that may identify a genetic
predisposition to a disease may only be performed for health purposes or for scientific
research linked to health purposes.
the appropriate medical environment for providing information prior to
testing and relevant post-test counselling be in place prior to offering such
screening
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5:09 PM
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Labels: 23 and me, amy harmon, clia, deCode, DNA direct, francis collins, Helix Health of Connecticut, navigenics, SACGHS, Senate
Monday, March 3, 2008
New England Journal, Prostate Cancer and Babel
In a significant meta analysis it is shown that the OR if you have a first degree relative with prostate cancer is 2.5 I hope Genome-Boy and his trusty side kick Prosty are reading!
Well, this study and its shortcomings...There are some. This study Blows mere family history out of the water. This study, dubbed CAPS, evaluated Prostate Cancer in Sweden.
The analysis of SNPs revealed 5 SNPs which had significant risk implicated...Here's the kicker, if a person has 4 SNPs and Family History, then your Odds Ratio for Having Prostate Cancer is.....get this 9.46 compared to the men who had none of these factors.
Take That PSA and Digital Rectal Exam!
Now where does this study have shortcomings?
1. It is retrospective and this is subject to bias, therefore needing prospective analysis before we will use it.
2. This population is a relatively homogeneous population that breeds nationally
3. Only one of the SNPs has an identifiable gene. Without a gene, we can only guess what role the SNP may play let alone devise a medication or treatment to offset these effects
The Sherpa Says:
This is what I am talking about! When replicated prospectively...and this will be, this will be a powerful tool to use for risk stratification. To my journalistic friends, please don't report the Odds Ratio as if it were a relative risk! To my prostate prone friends....cheer up. Prostate Cancer is rarely a killer.
Posted by
Steve Murphy MD
at
5:30 PM
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Labels: 23 and me, barack obama, Craig Venter genes, deCODEme, DNA direct, dnatraits, drudge report, francis collins, Helix Health of Connecticut, hillary clinton
Friday, January 4, 2008
Garbage In, Gospel Out
Posted by
Steve Murphy MD
at
1:27 PM
2
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Labels: 23 and me, DNA direct, francis collins, Helix Health of Connecticut, herceptin, navigenics
Wednesday, January 2, 2008
2008 Here We Come!!!
On the contrary, personalized molecular medicine appears to be at our doorstep.
The Sherpa Says: The conclusions are coming. I think Yoda said it best "Patience" This year will require tremendous amounts of it. Francis Collins tells a joke "There is this woman who is married to a research geneticist. He keeps telling her how great their sex life WILL be." Thank you to a certain unnamed TV news series for thinking of me when covering Personal Genomics. I look forward to our discussions. Does anyone think the New Year's Ball looks like an AAV?
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8:16 AM
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Labels: DNA direct, duchenne muscular dystrophy, francis collins, Helix Health of Connecticut, NEJM, New england journal of medicine, personalized medicine





