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Archive for Medical Academia

Crank “scientific” conferences: A parody of science-based medicine that can deceive even reputable scientists and institutions

If there’s one thing that purveyors of pseudoscientific medical modalities crave, probably above all else, it’s legitimacy. They want to be taken seriously as Real Scientists. Of course, my usual reaction to this desire is to point out that anyone can be take seriously as a real scientist if he is able to do science and that science actually shows that there is something to his claims. In other words, do his hypotheses make testable predictions, and does testing these predictions fail to falsify his hypotheses? That’s what it takes, but advocates of so-called “complementary and alternative medicine” (CAM) or “integrative medicine” (IM, or, as I like to refer to it: “integrating” quackery with scientific medicine) want their woo to be considered science without actually doing the hard work of science.

There are several strategies that pseudoscientists use to give their beliefs the appearance of science, a patina of “science-y” camouflage, if you will. One, of course, is the cooptation and corruption of the language of science, which has been a frequent topic on this blog, particularly in posts written by Drs. Atwood and Sampson. Another is to produce journals that appear to be science, but are anything but. I’ve discussed one example, the Journal of American Physicians and Surgeons and Medical Acupuncture, but others include Homeopathy, the Journal of Alternative and Complementary Medicine, and Medical Hypotheses, which recently was forced to retract a horrible paper by arch-HIV/AIDS denialist Peter Duesberg. What’s worse is that some of these journals are even published by what are considered major publishers, such as Mary Ann Liebert, Inc., and Elsevier.

There is, however, a third strategy. How do scientists communicate their findings to other scientists, as well as meeting and mingling with other scientists? Why, they hold scientific meetings, of course! These meetings can be small or even as large as the American Association for Cancer Research meeting, which is attended by around 15,000 cancer researchers each year. So, too, do cranks hold meetings. These meetings often have all the trappings of scientific meetings, with plenary sessions, smaller parallel sessions, poster sesssions, and an exhibition hall, complete with exhibits by sponsoring companies. Sometimes these meetings can even appear so much like the real thing that they take in legitimate researchers and legitimate universities. Here, I present two examples of such conferences.
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Posted in: Medical Academia, Public Health, Science and the Media, Vaccines

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“Gonzalez Regimen” for Cancer of the Pancreas: Even Worse than We Thought (Part II: Loose Ends)

Last week I discussed the dismal results of the “Gonzalez Trial” for cancer of the pancreas,* as reported in an article recently posted on the website of the Journal of Clinical Oncology. I promised that this week I’d discuss “troubling information, both stated and unstated [in the report],” and also some ethical issues. More has come to light in the past few days, including Nicholas Gonzalez’s own voluminous, angry response to the JCO article. I’ll comment upon that below, but first a brief review.

The trial was begun in 1999 under the auspices of Columbia University, after Rep. Dan Burton had pressured NCI Director Richard Klausner to fund it. It was originally conceived as a randomized, controlled trial comparing the “Gonzalez Regimen” to standard chemotherapy for cancer of the pancreas. In the first year, however, only 2 subjects had been accrued, purportedly because those seeking Gonzalez’s treatment were not willing to risk random assignment to the chemotherapy arm. In 2000, the protocol was changed to a “prospective, cohort study” to allow potential subjects to choose which treatment they would follow. Gonzalez himself was to provide the ‘enzyme’ treatments.

After that there was little public information about the trial for several years, other than a few determination letters from the Office of Human Research Protections and a frightening account of the experience of one subject treated by Gonzalez. By 2006 or so, those of us who pay attention to creeping pseudomedicine in the academy were wondering what had become of it. About a year ago we found out: the trial had been quietly “terminated” in 2005 after it met “pre-determined stopping criteria.” As explained here, that meant that the Gonzalez group had not fared well.

Four years after the trial’s ‘termination,’ the report was finally published: The Gonzalez cohort had not only fared much worse than the cohort that received chemotherapy, but it had fared worse than a comparable group of historical controls. Here, again, is the survival graph from the JCO paper:

Snapshot 2009-09-11 16-16-15

The Gonzalez group had also fared much worse in ‘quality of life’ scores, which included a measure of pain.

Now let’s read between the lines. Forgive me for taking shortcuts; I’m a little pressed for time. (more…)

Posted in: Clinical Trials, Health Fraud, Herbs & Supplements, Medical Academia, Medical Ethics, Science and Medicine, Science and the Media

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An open letter to Dr. J. Douglas Bremner

Peter Lipson wrote a post last week entitled Before You Trust That Blog…, which was a criticism of Dr. J. Douglas Bremner’s blog Before You Take That Pill. Dr. Bremner was not pleased, and posted a rebuttal entitled Response to Peter Lipson MD of “Science” Based Blogs, My Blog Does Not Suck, Yours Does. Given the kerfuffle and my role as managing editor of SBM, I felt the need to put my two cents in, which is why I’m posting this open letter to Dr. Bremner. This letter started as a much briefer response that I was going to e-mail to Dr. Bremner, but as I wrote it grew and grew to the point where I decided that, given the public nature of the disagreement between Dr. Lipson and Dr. Bremner, I might as well make my commentary public too. Consider it a bonus post from me. I still plan a post for my usual slot on Monday. In the meantime, here’s my open letter:
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Posted in: Medical Academia, Pharmaceuticals, Public Health, Science and the Media, Vaccines

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“Gonzalez Regimen” for Cancer of the Pancreas: Even Worse than We Thought (Part I: Results)

ResearchBlogging.org

Review

One of the more bizarre and unpleasant “CAM” claims, but one taken very seriously at the NIH, at Columbia University, and on Capitol Hill, is the cancer “detoxification” regimen advocated by Dr. Nicholas Gonzalez:

Patients receive pancreatic enzymes orally every 4 hours and at meals daily on days 1-16, followed by 5 days of rest. Patients receive magnesium citrate and Papaya Plus with the pancreatic enzymes. Additionally, patients receive nutritional supplementation with vitamins, minerals, trace elements, and animal glandular products 4 times per day on days 1-16, followed by 5 days of rest. Courses repeat every 21 days until death despite relapse. Patients consume a moderate vegetarian metabolizer diet during the course of therapy, which excludes red meat, poultry, and white sugar. Coffee enemas are performed twice a day, along with skin brushing daily, skin cleansing once a week with castor oil during the first 6 months of therapy, and a salt and soda bath each week. Patients also undergo a complete liver flush and a clean sweep and purge on a rotating basis each month during the 5 days of rest.

Veteran SBM readers will recall that in the spring of 2008 I posted a series of essays* about this regimen and about the trial that compared it to standard treatment for subjects with cancer of the pancreas. The NIH had funded the trial, to be conducted under the auspices of Columbia, after arm-twisting by Rep. Dan Burton [R-IN], a powerful champion of quackery, and much to the delight of the “Harkinites.”

In the fall of 2008 I posted an addendum based on a little-known determination letter that the Office for Human Research Protections (OHRP) had sent to Columbia during the previous June. The letter revealed that the trial had been terminated in October, 2005, due to “pre-determined stopping criteria.” This demonstrated that Gonzalez’s regimen must have been found to be substantially worse than the current standard of care for cancer of the pancreas, as ineffective as that standard may be. I urge readers who require a review or an introduction to the topic to read that posting, which also considered why no formal report of the trial had yet been made available.

Now, finally, the formal report has been published online by the Journal of Clinical Oncology (JCO):

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Posted in: Cancer, Clinical Trials, Health Fraud, Herbs & Supplements, Medical Academia, Medical Ethics, Politics and Regulation, Science and Medicine

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SBM in primary practice: one student’s experience

EDITOR’S NOTE: Dr. Jones is off this week; fortunately, we have this guest post by Tim Kreider, our science-based medical student. Enjoy!

My first clerkship of my third year of medical school was Family Medicine, and I had a great experience. After the first two years spent mostly with books and then a three-year interlude in a basic science lab, these past five weeks were my first extended foray into the world of patient care. I had a few lectures and seminars on campus, but most days were spent in a primary care office learning on the job. I was assigned to an office attached to a community hospital with a Family Medicine residency program, so I was able to work with both attending physicians and residents in training. I learned a lot and gained some much needed confidence regarding my clinical exam skills, which were rather rusty after grad school.

I have heard as a criticism of the SBM mission that practicing medicine “in the real world” is different from what evidence-obsessed, ivory tower dwellers think it should be. Therefore I approached my Family Medicine clerkship as my first chance to see the challenges and realities of practice outside the university setting. How would the practice of community-based physicians compare to the perhaps lofty ideals espoused by academics? (more…)

Posted in: Medical Academia, Science and Medicine

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Needles in the skin cause changes in the brain, but acupuncture still doesn’t work

ResearchBlogging.orgI don’t recall if I’ve mentioned it on SBM before, but I went to the University of Michigan. In fact, I didn’t go there just for undergraduate studies or medical school, but rather for both, graduating with a B.S. in Chemistry with Honors in 1984 and from medical school in 1988. In my eight years in Ann Arbor, I came to love the place, and I still have an affinity for it, even though it’s been over 20 years since I last walked about the campus as a student, although I have been back from time to time for various functions, most recently to see Brian Deer speak last winter. True, I’m not fanatical about it, as some of my contemporaries and friends who attened U. of M. with me back in the 1980s (and, sadly, the string of losses to Ohio State and the definitively mediocre last season Michigan had last year make it very hard to be a Michigan football fan these days). However, I do have considerable affection for the place. It molded me, trained me in science, taught me medicine, and provided me the basis for everything I do professionally today.
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Posted in: Acupuncture, Clinical Trials, Medical Academia, Science and the Media

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‘Acupuncture Anesthesia’ Redux: another Skeptic and an Unfortunate Misportrayal at the NCCAM

A Neglected Skeptic

Near the end of my series* on ‘Acupuncture Anesthesia’, I wrote this:

Most Westerners—Michael DeBakey and John Bonica being exceptions—who observed ‘acupuncture anesthesia’ in China during the Cultural Revolution seem to have failed to recognize what was going on right under their noses.

I should have added—and I now have—Arthur Taub’s name to that tiny, exceptional group. Taub, a neurologist and neurophysiologist at Yale, was a member of a delegation of Americans sent to China to observe ‘acupuncture anesthesia’ in May of 1974, about a year after Dr. Bonica‘s visit. The delegation included several prominent anesthesiologists. Their report,  Acupuncture Anesthesia in the People’s Republic of China: A Trip Report of the American Acupuncture Anesthesia Study Group, was published in 1976 and is available in its entirety here. Excerpts follow (emphasis added):

Pain is a subjective experience. Judging whether an individual is in a state of pain depends on observations of the subject’s behavior, including verbal reports to the observer…When there is no evidence of pain, the observer can adopt one of three positions: (more…)

Posted in: Acupuncture, Medical Academia, Science and Medicine, Science and the Media

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The clinician-scientist: Wearing two hats

About a week ago, Tim Kreider wrote an excellent post about the differences between medical school training and scientific training. As the only other denizen of Science-Based Medicine who has experienced both worlds, that of a PhD and that of an MD, and as the one who two decades further along the path than Tim (give or take a couple of years), his musings reminded me of similar musings I’ve had over the years, as well as emphasizing yet again something I’ve said time and time again: Most physicians are not scientists. They are not trained like scientists; they are trained to apply scientific knowledge to the care of their patients. That’s what science-based medicine is, after all, applying science to the care of patients. Not dogma. Not tradition. Not knowledge of antiquity. Science.

Leave dogma, tradition, and “ancient knowledge” to practitioners of “alternative medicine.” That’s where they all belong. Whether you want to call it “alternative medicine,” “complementary and alternative medicine” (CAM), or “integrative” medicine (IM), it rarely changes and almost never abandons therapies that science finds to be no better than placebo, whereas scientific medicine is, as it should be, ever changing, ever improving. I’ll grant you that the process is often messy. There are often false starts and blind alleys, and physicians are all too often reluctant to change their practices in response to the latest scientific findings. We sometimes even joke that for some practices, it takes the supplanting of one generation of physicians with a new generation to get rid of some practices. But change does come when the science and evidence are there. Indeed, for example, in response to evidence that a bacterium, H. pylori, causes duodenal ulcers, medical practice changed in a mere decade, which is about as fast as anyone could do the science and clinical trials to show the validity of the new concept. Although CAM practitioners like to hold up the example of Barry Marshall and Robin Warren, the researchers who discovered that H. pylori causes most duodenal ulcers, as an example of how researchers with radical ideas are ostracized, but that story is largely a myth, as our very own Kim Atwood showed.

The application of science to medicine is a difficult thing. It takes basic scientists and clinicians, but the two of them exist in different worlds. Or so it often seems. That’s why some individuals seek to straddle both worlds. Tim is one such person. So am I. Unfortunately, most people don’t understand what we do very well. We wear two hats. In my case, I’m a surgeon, and I’m a scientist. In Tim’s case, he’s a scientist and a physician, but he doesn’t yet know what kind of physician he will end up being. At the risk of sounding somewhat arrogant, I believe that we, and others like us, represent an important element in bridging the gap between basic science and clinical science, in, essentially, building a more science-based medicine.
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Posted in: Basic Science, Clinical Trials, Medical Academia

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Medical training versus scientific training

This month I will begin my third year of medical school, after a three-year break for laboratory research. Living alternately in the worlds of med school and grad school has prompted me to reflect on differences between these training programs.

[Obvious disclaimer: I have studied at a single institution, and only for five years.]

I am enrolled in a dual-degree MD/PhD program. About 120 US medical schools have such programs, and the National Institutes of Health funds a third of them (MSTP). The schedule of such programs is generally: 2 years of medical school (culminating in USMLE Step 1), 3+ years of graduate school (culminating in dissertation and PhD), and then the last 2 years of medical school (which I begin this month). The most popular residency choices for MD/PhD graduates are internal medicine, pediatrics, and pathology (match data). Other residencies that attract these graduates include dermatology, neurology, ophthamology, and radiology (survey data). The hopes of those funding the MD/PhD training programs and of those accepting the graduates is that these individuals will become physician-scientists, bridging the divide between lab bench and patient bedside with insights from both. (more…)

Posted in: Medical Academia, Science and Medicine

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Cancer research: Going for the bunt versus swinging for the fences

A couple of weeks ago, our resident skeptical medical student Tim Kreider wrote an excellent article about an op-ed in NEWSWEEK by science correspondent Sharon Begley, in which he pointed out many misconceptions she had regarding basic science versus translational research, journal impact factors, and how journals actually determine what they will publish. Basically, her thesis rested on little more than a few anecdotes by scientists who didn’t get funded or published in journals with as high an impact factor as they thought they deserved, with no data, science, or statistics to tell us whether the scientists featured in her article were in fact representative of the general situation. Begley’s article caught flak from others, including Mike the Mad Biologist and our very own Steve Novella. Naturally, as the resident cancer surgeon and researcher, I had thought of weighing in, but other issues interested me more at the time.

In retrospect, I rather regret it, given that this issue crops up time and time again. In essence, it’s a variant of the lament that pops up in the press periodically, when science journalists look at survival rates for various cancers and ask why, after nearly 40 years, we haven’t yet won the war on cancer. Because of his youth, Tim probably hasn’t seen this issue crop up before, but, trust me, every couple of years or so it does. Begley’s article and the NYT article strike me as simply “Why are we losing the war on cancer?” 2009 edition.

Now the New York Times has given me an excuse both to revisit Begley’s article and discuss yesterday’s front page article in the NYT Grant System Leads Cancer Researchers to Play It Safe. Basically, they are variants of the same complaints I’ve heard time and time again. Now, don’t get me wrong. By no means am I saying that the current system that the NIH uses to determine which scientists get funded. Those who complain that the system is often too conservative have a point. The problem, all too often, however, is that the proposals for how to fix the problem are usually either never spelled out or rest on dubious assumptions about the nature of cancer research themselves.
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Posted in: Basic Science, Cancer, Medical Academia, Politics and Regulation

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