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Posts Tagged NCCAM

Tens of millions for CAM research — and it’s all on your dime

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The Federal Funding Accountability and Transparency Act (FFATA) was signed on September 26, 2006. The intent is to empower every American with the ability to hold the government accountable for each spending decision. The end result is to reduce wasteful spending in the government. The FFATA legislation requires information on federal awards (federal financial assistance and expenditures) be made available to the public via a single, searchable website, which is www.USASpending.gov.

And what subject is more deserving of being held accountable by the American people than complementary/alternative/integrative medicine? After all, in what other area of government spending does scientific implausibility – indeed, even scientific impossibility – offer no impediment to spending millions of taxpayer dollars in research funds? We’ve complained about the NCCAM’s wasteful spending on pseudomedicine here on SBM several times: here, here, here and here, among others. As you shall see, the problem doesn’t stop at that particular $2.5 billion. (more…)

Posted in: Acupuncture, Chiropractic, Clinical Trials, Energy Medicine, Homeopathy, Medical Academia, Naturopathy, Politics and Regulation

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Of the Trial to Assess Chelation Therapy, Bayes, the NIH, and Human Studies Ethics

An experiment is ethical or not at its inception; it does not become ethical post hoc—ends do not justify means.
~ Henry K. Beecher

tact

A couple of weeks ago, Dr. Josephine Briggs, the Director of the National Center for Complementary and Alternative Medicine (NCCAM), posted a short essay on the NCCAM Research Blog touting the results of the Trial to Assess Chelation Therapy (TACT) (italics added):

The authors found that those receiving the active treatment clearly fared better than those receiving placebo. The accompanying editorial in the AHJ reminds readers about the value of equipoise and the need to “test our beliefs against evidence.”

Most physicians did not expect benefit from chelation treatment for cardiovascular disease. I readily admit, initially, I also did not expect we would find evidence that these treatments reduce heart attack, strokes, or death. So, the evidence of benefit coming from analyses of the TACT trial has been a surprise to many of us. The subgroup analyses are suggesting sizable benefit for diabetic patients—and also, importantly, no benefit for the non-diabetic patient. Clearly subgroup analyses, even if prespecified, do not give us the final answer. But it is also clear that more research is needed to test these important findings.

And TACT findings are indeed a reminder of the importance of retaining equipoise [sic], seeking further research aimed at replicating the findings, and neither accepting nor rejecting findings based on personal biases. The scientific process is designed to weed out our preconceived notions and replace them with evidence.

Dr. Briggs concluded:

So, TACT is a reminder—an open mind is at the center of the scientific method.

Dr. Briggs’s title was “Bayes’ Rule and Being Ready To Change Our Minds”, a reference to a recent editorial that had accompanied one of the TACT papers. That editorial, by Dr. Sanjay Kaul, a physician and statistician from UCLA, begins with this quotation:

Preconceived notions are the locks on the door to wisdom.
~ Merry Browne

Here is the relevant passage from Dr. Kaul’s editorial (italics added):

Sixth, it has been argued that the trial was unethical because there was no compelling clinical or preclinical evidence that chelation therapy has significant efficacy against atherosclerotic cardiovascular disease, and given that chelation therapy can cause harm, the risk was not minimal. A Bayesian analysis would not look kindly on the results because of the low prior probability of treatment effect (the so-called implausibility argument).6 This is an uncharitable (and unwarranted) interpretation of the data because previous systematic reviews concluded, “insufficient evidence to decide on the effectiveness or ineffectiveness of chelation therapy in improving clinical outcomes among people with atherosclerotic cardiovascular disease.” It is axiomatic that absence of evidence of efficacy is not the same as evidence of the absence of efficacy.

From a Bayesian perspective, the strength of evidence is often summarized using a Bayes factor, which is a measure of how well 2 competing hypotheses (the null and the alternate) predict the data. The Bayes factor and the corresponding strength of evidence for the primary end point result in TACT overall, and diabetic cohorts are shown in Table 1. The p-value of 0.035 for TACT overall cohort translates into a Bayes factor of 0.108, which means the evidence supports the null hypothesis ≈1/9th as strongly as it does the alternative. This reduces the null probability from 50% pretrial (justified by suspension of one’s belief in treatment effect) to 10% post-trial. Although this does not represent strong evidence against the null, it does reduce the level of skepticism surrounding chelation therapy. In the diabetic cohort, the nominal p-value of 0.0002 translates into a Bayes factor of 0.002 (1/500), which reduces the extremely skeptical prior null probability of 95% to 4% post- trial, indicating very strong evidence against the null.

In concluding, Dr. Kaul states:

Finally, TACT highlights the double standard when it comes to accepting inconvenient results not aligned with our preconceived notions on so-called dubious quack cures such as chelation…

Closed minds?

Dr. Kaul’s reference “6” above is to a lengthy article that we published in 2008 titled “Why the NIH Trial to Assess Chelation Therapy Should Be Abandoned”. So, it seems, both Drs. Briggs and Kaul were chastising us for our biased, preconceived beliefs about so-called dubious quack cures. Our minds were, apparently, not open. Let’s examine this contention. (more…)

Posted in: Clinical Trials, Health Fraud, Medical Academia, Medical Ethics, Politics and Regulation

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What’s in a name?: NCCAM tries to polish a turd

turdpolish

What’s in a name? that which we call a rose
By any other name would smell as sweet;
So Romeo would, were he not Romeo call’d,
Retain that dear perfection which he owes
Without that title. Romeo, doff thy name,
And for that name which is no part of thee
Take all myself.

William Shakespeare, Romeo and Juliet, Act II, Scene 2

You can clean up a pig, put a ribbon on its tail, spray it with perfume, but it is still a pig.

You can paint a turd red, but it’s still a turd.

There’s a colloquial phrase commonly used to describe an effort to sell or promote something that is so inherently awful or at least so flawed as to be unsalvageable without either a radical rethinking or such a major overhaul that it would be impractical or impossible to do: Polishing a turd. In this, advocates of so-called “complementary and alternative medicine” (CAM) have been very successful. Mark Crislip, in his usual inimitable fashion, just reminded us why CAM is a turd that needs polishing. Unfortunately, on Friday, I learned that the National Center for Complementary and Alternative Medicine unveiled a proposal to help it be more efficient in polishing the turd that is CAM through the clever use of language, and it wants your feedback. There were lots of other things that happened over the last few days that tempted me to write about them that will likely have to appear over at my not-so-secret other blog, but this one caught my attention and held it, given that it goes to the very heart of the deceptive use of language that is at the heart of giving CAM the appearance of legitimacy. In this specific case, NCCAM wants a new name. Dr. Briggs wants to rename NCCAM the National Center for Research on Complementary and Integrative Health (NCRCI). (I have no idea why the abbreviation of the proposed new center name isn’t NCRCIH.) Here’s Dr. Briggs explaining the rationale for the proposal and urging feedback by June 6 at http://nccam.nih.gov/about/offices/od/comments. I urge you to watch the whole video, or at least read the transcript:

Thus does Dr. Briggs propose polishing the turd that is NCCAM.
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Posted in: Clinical Trials, Medical Academia, Politics and Regulation

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The return of the revenge of high dose vitamin C for cancer

Somehow, I’ve a feeling we’re not in Kansas anymore—except that we are, as you will soon see.

Because I’m the resident cancer specialist on this blog, it usually falls on me to discuss the various bits of science, pseudoscience, and quackery that come up around the vast collection of diseases known collectively as “cancer.” I don’t mind, any more than my esteemed colleague Dr. Crislip minds discussing infectious diseases and, of course, vaccines, the most effective tool there is to prevent said infectious diseases. In any case, there are certain things that can happen during a week leading up to my Monday posting slot on SBM that are the equivalent of the Bat Signal. Call them the Cancer Signal, if you will. One of these happened last week, thus displacing that post I’ve been meaning to write on a particular topic once again. At this rate, I might just have to find a way to write an extra bonus post. But not this week.

In any case, this week’s Cancer Signal consisted of a series of articles and news reports with titles like:

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Posted in: Basic Science, Cancer, Clinical Trials

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What’s in your supplement?

When you pick up a bottle of supplements, should you trust what the label says?  While there is the perception that supplements are effective and inherently safe, there are good reasons to be skeptical. Few supplements are backed by good evidence that show they work as claimed. The risks of supplements are often not well understood. And importantly, the entire process of manufacturing, distributing, and marketing supplements is subject to a completely different set of rules than for drugs.  These products may sit on pharmacy shelves, side-by-side with bottles of Tylenol, but they are held to significantly lower safety and efficacy standards. So while the number of products for sale has grown dramatically, so has the challenge to identify supplements that are truly safe and effective. (more…)

Posted in: Health Fraud, Herbs & Supplements, Politics and Regulation

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Congress will soon lose its foremost supporter of quackery, but will it matter?

I don’t much like Senator Tom Harkin (D-IA), and, I daresay, neither do any of my fellow bloggers here.

The reason should be painfully obvious. Arguably, no single elected official currently serving today (or ever) has done more over a longer period of time to promote quackery in the United States. I make this harsh assessment because Senator Harkin was the legislator who created the National Center for Complementary and Alternative Medicine (NCCAM) and has been its most powerful patron, promoter, and protector. It’s a center in the National Institutes of Health (NIH) of which we at this blog have regularly been quite critical, right from the very beginning, when I pointed out how our taxpayer dollars were being wasted on pseudoscience and quackery, while Wally Sampson provided some perspective on how this situation came to be and I gave a bit of history of NCCAM. Since then, we’ve been hammering away at NCCAM as a blight on the the science of the NIH, whether intramural or extramural.

Three years ago, we even managed to attract the notice of Josephine Briggs, the current director of NCCAM, who invited us to Bethesda for a meeting. It was a very cordial meeting, as described by Steve Novella and myself. Unfortunately, in the name of “balance,” Dr. Briggs turned right around and met with a bunch of homeopaths and then drew a false equivalency between us “skeptics” and proponents of quackery as represented by the homeopaths. Clearly, she didn’t get it, or, if she did get it, her position was such that she couldn’t bite the hand that feeds NCCAM. A year after that, NCCAM published a five year strategic plan, which I characterized as “let’s do some rigorous science for a change,” given that that’s about all it said. It’s a nice sentiment. We’ll see if it actually happens, although I doubt that it will. Although studying herbs is nothing but a form of pharmacognosy (natural products pharmacology) and studying lifestyle interventions is science-based medicine, neither of them are actually “CAM” per se, because there is nothing “alternative” about them other than their having been co-opted as a “foot in the door” grafted onto the more serious woo. Like a stray limb grafted onto Frankenstein’s monster, they don’t belong and don’t fit.

But I digress. NCCAM has that effect on me.

A Congressional champion of quackery decides to quack no more (after 2014, anyway)

It turns out that over the weekend, Senator Harkin announced that he will not seek a sixth term as a Senator:
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Posted in: Politics and Regulation

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Getting NCCAM’s money’s worth: Some results of NCCAM-funded studies of homeopathy

As hard as it is to believe, the Science-Based Medicine blog that you’re so eagerly reading is fast approaching its fifth anniversary of existence. The very first post here was a statement of purpose by Steve Novella on January 1, 2008, and my very first post was a somewhat rambling introduction that in retrospect is mildly embarrassing to me. It is what it is, however. The reason I mention this is because I want to take a trip down memory lane in order to follow up on one of my earliest posts for SBM, which was entitled The National Center for Complementary and Alternative Medicine (NCCAM): Your tax dollars hard at work. Specifically, I want to follow up on one specific study I mentioned that was funded by NCCAM.

Even though I not-so-humbly think that, even nearly five years later, my original post is worth reading in its entirety (weighing in at only 3,394 words, it’s even rather short—for me, at least), I’ll spare you that and cut straight to the chase, the better to discuss the study. It is a study of homeopathy. Yes, in contrast to the protestations of Dr. Josephine Briggs, the current director of NCCAM, that NCCAM doesn’t fund studies of such pure pseudoscience as homeopathy anymore (although she does apparently meet with homeopaths for “balance”), prior to Dr. Briggs’ tenure NCCAM actually did fund studies of the magic water with mystical memory known as homeopathy. Two grants in particular I singled out for scorn. The principal investigator for both grants was Iris Bell, who is faculty at Andrew Weil’s center of woo at the University of Arizona. The first was an R21 grant for a project entitled Polysomnography in homeopathic remedy effects (NIH grant 1 R21 AT000388).
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Posted in: Basic Science, Clinical Trials, Homeopathy

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The result of the Trial to Assess Chelation Therapy (TACT): As underwhelming as expected

Chelation therapy.

It’s one of the most common quackeries out there, used by a wide variety of practitioners for a wide variety of ailments blamed on “heavy metal toxicity.” Chelation therapy, which involves using chemicals that can bind to the metal ions and allow them to be excreted by the kidneys, is actually standard therapy for certain types of acute heavy metal poisoning, such as iron overload due to transfusion, aluminum overload due to hemodialysis, copper toxicity due to Wilson’s disease, acute heavy metal toxicity, and a handful of other indications.

My personal interest in chelation therapy developed out of its use by unscrupulous practitioners who blamed autism on the mercury-containing thimerosal preservative that used to be in many childhood vaccines until 2001 but has since all but disappeared from such vaccines except for one vaccine (the flu vaccine, for which a thimerosal-free alternative is available) and in trace amounts in some other vaccines. Mercury became a convenient bogeyman to add to the list of “toxins” antivaccinationists hype in vaccines. In fact, my very first post after I introduced myself on this very blog discussed the idea that mercury in vaccines was a significant cause of autism and autism spectrum disorders, and I’ve periodically written about such things ever since, in particular the bad science of Mark and David Geier, whose idea that chemical castration of children with Lupron “works” against “mercury-induced” autism is based on a chemically ridiculous idea that somehow testosterone binds mercury and makes it harder to chelate. Unfortunately, this particular autism quackery has real consequences and has been responsible for the death of a child.

Chelation isn’t just for autism, however. Despite many practitioners advertising it for autism, cancer (often with dubious studies that I might have to take a look at), Alzheimer’s disease (which Hugh Fudenberg has blamed on the flu vaccine, a claim parroted by Bill Maher, of course!), and just about every ailment under the sun, it’s easy to forget that the original use for chelation therapy promoted by “alternative medicine” practitioners was for cardiovascular disease. When it is used for coronary artery disease or autism, on a strictly stoichiometric and pharmacological basis, it is extremely implausible. Moreover, it is not without potential complications, including renal damage and cardiac arrhythmias due to sudden drops in calcium levels. Such arrhythmias can and have led to death in children, and in adults complications such as renal failure and death.
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Posted in: Clinical Trials

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The Trial to Assess Chelation Therapy: Equivocal as Predicted

The ill-advised, NIH-sponsored Trial to Assess Chelation Therapy (TACT) is finally over. 839 human subjects were randomized to receive Na2EDTA infusions; 869 were randomized to receive placebo infusions. The results were announced at this weekend’s American Heart Association meeting in Los Angeles. In summary, the TACT authors report a slight advantage for chelation over placebo in the “primary composite endpoint,” a combination of five separate outcomes: death, myocardial infarction, stroke, coronary revascularization, and hospitalization for angina:

 

Although that result may seem intriguing, it becomes less so when the data are examined more carefully. First, it barely achieved the pre-ordained level of statistical significance, which was P=.036. Second, none of the individual components of the composite endpoint achieved statistical significance, and most of the absolute difference was in coronary revascularization–which is puzzling:

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Posted in: Clinical Trials, Health Fraud, Medical Ethics, Politics and Regulation, Science and Medicine

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NCCAM on “integrative medicine”: What’s in a word?

I don’t know how I’ve missed this, given that it’s been in existence now for a month and a half, but I have. Regular readers (and even fairly recent readers, given that I write about this topic relatively frequently) know that I’m not a big fan of the National Center for Complementary and Alternative Medicine (NCCAM). (Come to think of it, neither is anyone else writing for this blog.) Just search this blog for “NCCAM” if you don’t believe me. I’ve explained the reasons many times, but the CliffsNotes version is that NCCAM is an enormous waste of taxpayer money, dedicated as it is to the study of modalities that are at best highly implausible and at worst break well-established laws of physics (i.e., “energy healing”). I do concede that, since the latest NCCAM director (Dr. Josephine Briggs) took over, there has been a noticeable attempt to bring more scientific rigor to NCCAM, and to some extent Dr. Briggs has succeeded. At the very least she is a legitimate scientist with an impressive pre-NCCAM track record, and I do fear who will succeed her when she moves on or retires given that there is enormous pressure from the CAM community to appoint one of their own as director.

Unfortunately, as rigorous a scientist as Dr. Briggs was in her former life, since coming to NCCAM she has gradually been assimilated into the culture of the place. Indeed, although it is good that NCCAM has backed away from studying woo like homeopathy and distance healing, the co-optation of science-based modalities such as exercise, diet, and natural products pharmacology has continued apace. Worse, the recently released five year strategic plan for NCCAM admitted that the science funded by NCCAM in the past was crap and, in essence, promised to do some real science for a change. That’s why on occasion I’ve jokingly said that we should take off and nuke NCCAM from orbit. It’s the only way to be sure. On the other hand, no doubt someone would think I seriously mean that we should nuke NCCAM. Of course, I’d never advocate that! NCCAM is located right smack dab in the middle of the NIH campus. The collateral damage would be unacceptable.

I keed. I keed. I’m not kidding, though, when I echo the questioning of why NCCAM still exists.
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Posted in: Clinical Trials, Medical Academia, Politics and Regulation

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