Tuesday, September 28, 2010
Looking For an Effective Presentation for Physicians about Pharma? PharmedOut Can Help
But help is on the way. Adriane Fugh-Berman and her colleagues at PharmedOut have both put together a nice slide show suitable for a medical grand rounds or similar hospital conference, and also have reported (subscription required) on the evaluations from 14 presentations to some 373 physicians in multiple specialties. (You can find the slide show at http://www.pharmedout.org/type.htm#slideshows, though if I understand the article and a related communication from PharmedOut, there may be a new, revised version that is not yet up on the Web.)
The authors report fairly substantial shifts in attitudes based on pre-and-posttest data from these educational presentations, according to which physicians became considerably more skeptical of drug company gifts and information, and more inclined to refuse to accept gifts or to speak with drug reps. While this does not address what real behavior change followed over time, it is rather more encouraging than was the case with previous educational efforts. So if any physicians are looking for an easy-to-borrow slide show to educate their colleagues, check this one out.
Fugh-Berman AJ, Scialli AR, Bell AM. Why lunch matters: assessing physicians' perceptions about industry relationships. Journal of Continuing Education in the Health Professions 30(3):197-204, 2010.
Campbell EG, Gruen RL, Mountford J, et al. A national survey of physician-industry relationships. New England Journal of Medicine 356:1742-50, 2007.
Sunday, September 26, 2010
Tilting the Pinball Table, for Fun and Profit
http://neuroskeptic.blogspot.com/2010/09/big-pharma-explain-how-to-pick-cherries.html
Background: My colleague Dan Moerman, a medical anthropologist at U Michigan-Flint, published a classic paper on the placebo effect nearly 30 years ago. He looked at about 35 published studies of the then-new-miracle drug, cimetidine (Tagamet) for healing peptic ulcers, all of which had almost identical methods--the patient was endoscoped at the start of therapy and then a month later to see whether the ulcer had healed and what size it was. (They didn't have the term back then, as I recall, but Moerman did an early meta-analysis.) He showed a number of surprising things:
- According to his meta-analysis, cimetidine was actually no better than placebo.
- Cimetidine, however, was quite consistent in its effects across studies. No matter where the study was done (a wide range of international sites were represented), the healing rate in the cimetidine-treated group at one month was about 70-75%.
- If you looked at the individual studies, about half showed that cimetidine was superior to placebo, and half showed it wasn't.
- Since cimetidine was so consistent, the only variable to explain this inconsistency had to be the placebo response rate. And indeed that varied from a low of 10 percent to a high of 80 percent.
- So whether cimetidine was shown in any individual study to be better than placebo had virtually nothing to do with the cimetidine response rate and everything to do with the placebo response rate.
- The placebo response rate in these studies is not the same as the "placebo effect." Studies of this sort cannot distinguish between healing of ulcers caused by administering a placebo, vs. healing of ulcers due to other causes (primarily, spontaneous remission). Most ulcers, given time, heal. However, it would be contrary to most of what we think about peptic ulcers to imagine that the spontaneous healing rate of these ulcers differ so widely among study centers in different countries. So it is more plausible to imagine that the rates of placebo effect differed among study sites to primarily account for the large differences.
Now, let me make two points about Moerman's (subsequently replicated) research. First, it reveals a real problem in using the typical double-armed, placebo controlled, double-blind randomized trial to assess drug effects. It reveals that the placebo arm of the trial can be a source of "noise" that might obscure a presumably real drug effect. Second, I take Moerman's work to be real science. Moerman was not trying to sell Tagamet. (Nor, so far as I know, did he own stocks in a placebo company.) Moerman was trying to understand what various factors determine the outcome of placebo-controlled studies and quantitatively, how much of a result can be attributed to each factor.
Fast-forward to the article reviewed by Neuroskeptic in his blog. It's one of a series of studies funded by drug companies either directly or indirectly, and differs from earlier entries into the series (according to Neuroskeptic at least) only in its brazenness. If you are trying to sell drugs, then you really want to take what Moerman observed and work it to your advantage. What that usually means is to try to manipulate the placebo arm of the trial so as to reduce, as much as possible, the response rate among subjects randomized to that arm--thereby assuring that the subjects taking your drug have the best possible chance of doing better than their placebo counterparts.
Hence, in the name of "accuracy" or more usually, "efficiency," we get a variety of proposals that all amount to various ways to ignore or toss out data when the placebo effect is inconveniently high. These efforts fall (in my view) along a spectrum. At one end we have relatively innocent and well-reasoned alterations of study design that try to correct for extreme and obvious distortions that lead to underestimating the true drug effect. At the other end of the spectrum are blatant efforts to wipe out unfavorable data and replace them with good-looking data, science be damned. You can read the post about this most recent proposal from GlaxoSmithKline and you be the judge. (Neuroskeptic thinks it's an extreme case of tilting the pinball table by eliminating all study sites that have an "abnormally" high placebo response rate, thereby assuring that your drug will emerge the winner.)
My own view is that most efforts, at most points along the spectrum, run afoul of one basic consideration. In the real world of medical practice, the placebo effect is omnipresent. Further, while in a study setting, one might have a legitimate reason to try to minimize placebo effects (in both arms of the trial equally), in the world of clinical medicine, practitioners do everything possible most of the time to augment the placebo effect, quite appropriately as this makes more patients get better faster. So any study that tries to get "better" data by minimizing the placebo effect is likely not to inform us of how this drug will perform in actual practice settings.Merlo-Pich E, Alexander RC, Fava M, & Gomeni R. A New Population-Enrichment Strategy to Improve Efficiency of Placebo-Controlled Clinical Trials of Antidepressant Drugs. Clinical Pharmacology and Therapeutics PMID: 20861834 (published on line 22 Sept. 2010).
Saturday, September 25, 2010
Catching Up: Pharma Settlements in Criminal Cases
Drug Company: Forest Laboratories
Drug: Celexa and Lexapro
Amount of settlement: $313M
The settlement equals what percentage of one year's sales of the drug?: 13.6% (Lexapro only)
Did the company admit wrongdoing? Yes/No: Of course not
Link to detailed news coverage: http://www.nytimes.com/2010/09/16/health/16drug.html?scp=1&sq=natasha%20singer%20forest%20celexa&st=cse
It was only in the process of reading about this settlement, that I came to realize that I had missed the news of a settlement two weeks earlier:
Drug Company: Allergan
Drug: Botox
Amount of settlement: $600M
The settlement equals what percentage of one year's sales of the drug?: 46%
Did the company admit wrongdoing? Yes/No: Of course not
Link to detailed news coverage: http://www.nytimes.com/2010/09/02/business/02allergan.html?hp
Taking the earlier case first, Allergan was accused of pushing Botox for headache, pain, and spasticity associated with cerebral palsy, all unapproved indications according to the FDA. The marketing methods included kickbacks to doctors for off-label uses and helping physicians to get insurers to reimburse for off-label uses by falsely putting in the billing code for an approved indication. (In partial defense of Allergan, British regulators recently accepted company research showing that Botox might be useful in the treatment of chronic migraines, suggesting that the current FDA label for the drug might be too restrictive--though of course legally, the company is supposed to expand its label first and market the drug for those indications second, not the other way around.) The Botox settlement may set a new record, not for the total amount--Pfizer's $2.3B Bextra settlement still holds pride of place--but for the substantial percentage of 1 year's sale of the drug in question. Still, it means that in about 6 months, Allergan will make enough revenue off the drug to pay off the total cost of the settlement.
Now to Forest. They had already pulled off a huge coup by marketing Lexapro, a minor tweak of the Celexa molecule, as a brand-new antidepressant just in time to "evergreen" Celexa as its patent was running out. The major off-label use they were promoting was the use of the drugs for children and adolescents when the FDA had approved adults-only usage. The major methods of marketing alleged by the Feds were huge bribes to docs--examples noted between 1998 and 2005 were tickets to Cardinals and Red Sox games and Broadway shows, a $1000 gift certificate for the gourmet French restaurant Alain Ducasse, and a deep-sea fishing trip off Cape Cod for a doctor and his 3 sons. What is most striking about this list is the suggestion of the effects of the 2002 PhRMA code of conduct. While less stringent than the code that went into effect in January, 2009, the 2002 code was supposed to have done away with such extreme items as sports tickets and leisure junkets (as I wrote about in HOOKED). We don't know the exact dates on the allegations in the Federal suit against Forest, but it would appear at least possible that Forest reps were handing out bribes of a sort that the PhRMA code had supposedly banned, in years after the PhRMA code was supposed to be in effect--perhaps another suggestion on how effective these voluntary codes of conduct within the industry really are.
Final note: Defenders of industry will point out, correctly, that the companies have admitted to none of these charges. The suits against the companies were all based on whistleblower disclosures, which generally lead to the discovery of extensive files of in-house company documents. So we can assume that the Federal allegations are based on the review of those company files.
What Disclosure? Failure of Present Journal Policies in Orthopedics
http://www.nytimes.com/2010/09/14/business/14devices.html?_r=2&ref=business
--nicely summarized a new study published on-line in the Archives of Internal Medicine (subscription required) by our friends over at the Institute on Medicine as a Profession at Columbia University.
Susan Chimonas, Zachary Frosch, and David Rothman started out with the information sprung loose in 2007 by a court settlement involving 5 device manufacturers. From those data the authors identified 41 orthopedic surgeons who had been paid at least $1M by these companies. They figured quite resonably that while somebody could quibble about how big a deal it is if a doc fails to disclose (say) $5000 in consulting fees, it's hard to dismiss more than a million smackers as chicken feed. They then tracked all the journal articles published by those 41 folks in the subsequent year. Overall, 25 of 32 who published articles in 2008 (I suppose the rest were too busy counting their money to publish anything) failed to disclose this income in at least one of the articles they published. The exact rate of disclosure varied a good deal but at best it was about half. The existence of a strong editorial policy at that journal on disclosure of conflicts had no relationship to whether these conflicts were actually disclosed.
The authors suggest that the present system of disclosure in medical journals (assuming orthopedic journals to be representative) is clearly not working. They point out that by 2013, the new health reform law will require that pharmaceutical and device companies post relevant physician payments to a standard online national database. It will then be much easier for journals independently to confirm whether an author has a conflict and how much money is involved. The authors also recommend that the "how much" be part of the disclosure, again suggesting that the doc who rakes off a cool million might be in a somewhat different position with regard to potential bias than the guy who runs off with $10K 0r $20K.
Chimonas S. Frosch Z, Rothman DJ. From disclosure to transparency: the use of company payment data. Archives of Internal Medicine, DOI 10.1001/archinternmed.2010.341, published online 13 Sept. 2010.
It's Published: Some Cholesterol Calculators Spur Extra Drug Sales
http://brodyhooked.blogspot.com/2008/05/brilliant-sleaze-award-goes-to-pfizers.html
I'm pleased to report that their work has now been published in the Journal of General Internal Medicine--that's the good news. The bad news is that most people reading the JGIM paper would miss the important connections between their findings and drug industry marketing. (My guess is that the editorial review process might have toned down some of the more pointed comments in the original text.) You might be able to find the article at http://www.springerlink.com/content/x266735764406234/fulltext.html-- but I suspect it is available to journal subscribers only.
Anyhow, here's a brief reminder summary plus the missing piece. There are two versions of the Framingham risk calculator that is recommended by most guidelines for physicians to use to decide how high-risk a patient is for coronary disease, which then leads to the decision to prescribe a statin, and what target cholesterol level to aim for. One directly calculates risk and the other assigns points. So long as you are doing paper-pencil calculations, the point system is much easier to manage; but if you're computerized, it's just as easy to use the one as the other.
The point system turns out to be less accurate than the full calculator, and the errors are not random. About twice as many people will be classified by the point system erroneously as needing more statins, compared to those misidentified as needing less.
What got this whole thing going was the observation that when drug company money was somewhere in the neighborhood (for instance, Epocrates, an educational medical-reference website that is heavily supported by industry advertising), the on-line risk calculator was much more likely to be based on the inaccurate point system, rather than the more accurate "full" calculator. But there is no way for the average doc to be aware that this bias is present when she's rushing to calculate a patient's risk score so that she can get that patient out of the office and get on to the next patient.
The published article goes into all the details about why the two calculators are different and just how many patients in each general category are likely to be erroneously classified when using the point-based model. Sadly, it soft-pedals all the links to industry funding and marketing. So docs now know that there's two models of the Framingham calculator out there and that using one of them is more likely to lead to error. What they don't know from this article is that drug industry funding is a fairly good predictor of whether they'll run into the less accurate (but more profitable for statin sales) calculator.
Gordon WG, Polansky JM, Boscardin WJ, Fung KZ, Steinman MA. Coronary risk assessment by point-based vs. equation-based Framingham models: significant implications for clinical care. Journal of General Internal Medicine, DOI 10.1007/s11606-101-1454-2; published online 8 Sept. 2010
Friday, September 24, 2010
When Drug Makers Pay for Reporters to Attend Conferences...
See Alison Fairbrother's nicely comprehensive article--
http://www.politicsdaily.com/2010/09/13/are-health-care-reporters-biased-by-training-when-drug-makers-pa/
--on the practice of pharmaceutical companies sponsoring educational conferences for journalists and underwriting their attendance.
You'll quickly see the same arguments trotted out as we have been used to reading in the medicine/CME debate. On the one hand we hear that the companies give the money but do not dictate the content, and that with serious cutbacks in media budgets reporters could otherwise not get funding to attend these valuable and informative conferences. On the other side we encounter worries about integrity and conflict of interest and a fear that this is the entering edge of the wedge.
I see only one major difference between this controversy around journalism ethics and medical CME. We know what is happening around the country as investigative reporting seems to be going the way of the dodo and as bankrupt major newspapers rush to lay off staff. The claim that the profession of journalism could not, in house, afford these sorts of teaching venues without the influx of outside money, rings a bit truer than the claim that physicians are somehow too poverty-striken to manage to arrange their own CME without industry largesse. But that observation does not make the ethical concerns go away.
Thursday, September 16, 2010
A Brief Postcard from Lebanon
I found myself preaching to the choir as virtually no one took any issue with my call for significant reforms. (Dr. Arawi informs me that AUB is developing new policies on conflicts of interest on US and European models just this year, and that while there was initially some physician opposition, it was soon superseded by general support and a sense that something needed to be done.)
The first comments that I received were to the effect that the problem was generally worse here than in the US, and even worse yet in the developing world. "More and more physicians are on the drug companies' monthly payroll" was how one comment put it (sadly I was not able to follow up to ask just what that meant). Lebanese patients seem to resemble many Americans in believing that if they do not leave the physician's office with a prescription in hand, the physician provided them with no service. Another academic commented on the vast amount of research money spent by companies merely to "evergreen" profitable drugs rather than to discover truly innovative drugs. I received a startled question about my description of the practice of ghostwriting from a professor of philosophy, who obviously could not believe that such things went on. Another question dealt with the FDA and why its regulatory authority had not set matters right. Perhaps the most challenging question came from a neurologist who wanted nto know why I did not support remaking drug firms into non-profit institutions--as he said, we understand that universities are supposted to be non-profit; why not the companies that discover and manufacture drugs for the public health? (I didn't want to mention that the emergence of for-profit universities seems to be the latest fad in US higher education.)