Dr. Mathews is director of the internal medicine residency program at a large teaching hospital. The department chairman asked him to seek sources of funding for the weekly noontime conferences, adding, "With all those drug companies out there wanting time with physicians, you shouldn't have a problem finding someone to buy us a sandwich and chips once a week."
Dr. Mathews asked, "That's okay with you and the department, allowing a drug company to buy lunch once a week?"
"I think so," the chairman said. "Everyone knows by now that each drug rep is going to tout his own wares. It's a wash, in the end. Most 6-year-olds know how to discriminate among fast-food ads on television; I think residents can make sound independent decisions, don't you?"
Dr. Mathews had, in fact, been talking with a rep from Melissima Inc who was trying to push Melissima's ACE inhibitor. If any product message could be neutralized by the sheer number of competing ads, an ACE inhibitor ad would be it. The rep okayed the plan. She would be there at the weekly conferences, but only in case someone had a question, she explained.
Dr. Mathews thought that, with a few words from him to the residents before the Melissima sponsorship kicked off, everything would be okay. After a while, he'd switch companies and let a Melissima competitor buy lunch. Or if it turned out that the Melissima rep was being too chatty, having too much to say to the residents, he'd switch. These things needed to be judged on a case-by-case basis, Mathews thought. All company sponsorship cannot be condemned as bad. By rough calculation, though, Melissima would be spending about $650 to $700 on the food per week. He wasn 't sure that information would pass the "how would it look in the headlines" test.
Interactions between physicians and the pharmaceutical industry start as early as medical school, continue well into practice, and take on many forms. Residents meetings with pharmaceutical representatives (PR) occur up to 4 times per month (more in the later years) and more frequently if one also considers briefer contacts. Residents receive more industry-paid meals and samples than faculty, while faculty receive more honoraria, conference travel, and research funding. Unfortunately, there is little available to guide most residents through many of these interactions, which impact on the behavior and practice of physicians.1
As Dr. Matthews states in the case discussed above, the pharmaceutical industry sets aside great sums of funding for promotion. In 2000, an estimated $15.7 billion was spent by industry in promotion and marketing, more than the amount they spend on research and development.2 Of that, $5 billion goes to pharmaceutical representatives (PRs), whose workforce numbers more than 60,000. These numbers amount to 1 PR and at least $100,000 for every 11 practicing physicians in the US. Industry-sponsored events in 2000 numbered 314,000.2
Such numbers and scale have a tendency to drown the critical issue of physician conflict of interest. Medicine's relationship with industry is often considered as a free market exchange where physicians interact with pharmaceutical representatives who bear gifts. In this free enterprise light, physicians' relationship with the industry is normal, if not expected, and simply reflects various stakeholders' attempts to capture a greater portion of the market share. Pens, books, educational materials, samples, meals, and conference travel funding become legitimate means to establish confidence and comfort between the promoter and the promotee.3
This comparison with marketplace interactions is not appropriate, however, because the practitioner of medicine has a very different relationship with his or her patient. Doctors have fiduciary duties to their patients. As caregivers, they make decisions about treatments for their patients, and their relationship with the patient is their primary interest. The one who will be the ultimate recipient of the promoter's influence, in this case, is the patient, not the physician, hence the interaction is not a standard market exchange.4
The conflict of interest in the industry-physician relationship differs from other forms of ethical dilemmas. The common form of ethical dilemma (eg confidentiality, consent to treatment issues), assumes that 2 or more "competing interests have a presumptive claim to priority, and the problem is in deciding which to choose."5 A conflict of interest, however, is "a set of conditions in which professional judgment concerning a primary interest (such as patients' welfare or the validity of research) tends to be unduly influenced by a secondary interest (such as financial gain)."6 In the relationship between physicians and the pharmaceutical industry, the physician's responsibility to the patient has priority over his or her responsibility to any industry "partners," so industry influence creates a conflict of interest. A number of other circumstances expose physicians to similar conflicts: research on patients, physician risk sharing in health maintenance organizations and hospitals, and self-referrals.
A conflict of interest, however, is a condition and not necessarily a behavior. One can be in conflict of interest and not act a way that conflicts with one's primary interest.7 In the case of industry-physician conflicts, the physician must give priority to patient welfare and care and prevent the secondary interest from influencing that priority.
The outcomes of industry-physician interactions, the secondary interest, have been studied. One study found a positive outcome (improved ability to identify the treatment for complicated illnesses); 21 studies found negative influence associated with the secondary interest.3 The outcomes of industry–physician interactions include an impact on knowledge (inability to identify wrong claims about medication), attitude (positive attitude toward pharmaceutical representatives; awareness, preference, and rapid prescription of a new drug), and behavior (making formulary requests for medications that rarely held important advantages over existing ones; non-rational prescribing behavior; increasing prescription rate; prescribing fewer generic but more expensive, newer medications at no demonstrated advantage.)
In the case of Dr. Matthews and the noon conferences for residents, there is good evidence to support the belief that drug company sponsorship of continuing medical education (CME) affects presentation content in that the sponsor's drug is preferentially highlighted and changes in prescribing practice have been shown to favor the sponsor's drug.8,9 Resident exposure to pharmaceutical representative speakers at lunch rounds is likewise associated with dissemination and learning of inaccurate information about the sponsor's and competitor's drug.10
It is a mistake on Dr. Matthew's part to believe that the sheer number of ads will neutralize the effect of any single ad. The case of ACE inhibitors is a case in point; we now know that, although Beta blockers and a diuretic are first line treatment for hypertension, clinical practice does not reflect that knowledge.11,12,13,14,15 Exposing oneself to promotion of a medication from "saturated" markets exposes one to class-specific, not drug-specific marketing techniques. This does not necessarily provide prescribing information or an antidote to marketing influence.
Finally, the "headline test" Dr. Matthew mentions alludes to the American College of Physicians' suggestion that physicians should be guided in making decisions about their activities by whether they would be willing to have their interactions widely known.16 Of concern, though, is that, according to one study, patients believed gifts to be less appropriate and more influential than did their physicians.17 Equally relevant is the evidence that physicians are often not aware of how interactions affect them.18 The guidelines by the AMA have been one such attempt to acknowledge this limitation for all physicians.19
- Wazana A. Physicians and the pharmaceutical industry: is a gift ever just a gift?. JAMA. 2000;283(3):373-380.
Statistics available at http://www.nofreelunch.org . Accessed June 30, 2003.
Wazana A, Primeau F. Ethical considerations in interactions between residents and the pharmaceutical industry. Psychiatric Clin N Amer.Fall 2002
- Chren M-M, Landefeld CS, Murray TH. Doctors, drug companies, and gifts. JAMA. 1989;262(24):3448-3451.
- Thomson AN, Craig BJ, Barham PM. Attitudes of general practitioners in New Zealand to pharmaceutical representatives. B J Gen Pract. 1994;44(382):220-223.
- Thompson DF. Understanding financial conflict of interest. N Engl J Med. 1993;329(8):573-576.
- Smith R. Beyond conflict of interest. BMJ. 1998;317(7154):291-292.
- Bowman MA, Pearle DL. Changes in drug prescribing patterns related to commercial company funding of continuing medical education. J Contin Educ Health Prof. 1988;8(1):13-20.
- Bowman MA. The impact of drug company funding on the content of continuing medical education. Mobius. 1986;6(1):66-69.
- Ziegler MG, Lew P, Singer BC. The accuracy of drug information from pharmaceutical representatives. JAMA. 1995;273(16):1296-1298.
- Pahor M, et al. Health outcomes associated with calcium channel antagonists compared with other first-line antihypertensive therapies: a meta-analysis of randomized controlled trials. Lancet. 2000;356(9246):1949-1954.
Blood Pressure Lowering Trialists' Collaboration. Effects of ACE inhibitors, calcium antagonists, and other blood-pressure-lowering drugs: results of prospectively designed overviews of randomized trials. Lancet. 2000;356(9246):1955-1964.
The sixth report of the Joint National Committee on prevention, detection, evaluation, and treatment of high blood pressure. Arch Intern Med. 1997;157(21):2413-46.
- Hyman DJ, Pavlik VN. Self-reported hypertension treatment practices among primary care physicians: blood pressure thresholds, drug choices, and the role of guidelines and evidence-based medicine. Arch Intern Med. 2000;160(15):2281-2286.
ALLHAT - So What? J Inform Pharmacother 2003;12:1.
American College of Physicians. Physicians and the pharmaceutical industry. Ann Intern Med. 1990; 112(8):624-626.
- Gibbons RV, Landry FJ, Blouch DL, et al. A comparison of physicians' and patients' attitudes toward pharmaceutical industry gifts. J Gen Intern Med. 1998;13(3):151-154.
- Orlowski JP, Wateska L. The effects of pharmaceutical firm enticements on physician prescribing behavior: there's no such thing as free lunch. Chest. 1992;102(1):270-273.
American Medical Association Council on Ethical and Judicial Affairs. Gifts to physicians from industry. JAMA. 1991;265(4):501.