Study sees free meals swaying physicians on drug decisions



CHICAGO — As little as one free meal from a drug company can influence which medicines doctors prescribe for Medicare patients, according to a study using Medicare records and recently released data from the health care law’s Open Payments program.

The study highlights the subtle ways doctors might feel inclined to prescribe a drug after receiving just a small gift, even if the drug is more costly for patients and their insurance plans, the study authors said.

In a typical scenario, drug companies sometimes sponsor meals served during medical conferences and their sales reps can offer drug information and free samples to doctors waiting in line for food.

Dr. Adams Dudley, the study’s lead author, said that happened to him as a young physician – and it led him to prescribe brand-name drugs.

“Having just accepted even just a slice of pizza, you’re going to feel like, ‘Hey, I should let them talk to me,’” he said.

The Pharmaceutical Research and Manu­fac­tu­rers of America, an industry group, says it has a voluntary code that sets a $100 limit on “educational items” for doctors and says “modest occasional meals are permitted.”

Holly Campbell, a spokeswoman for the group, said the study “cherry-picks physician prescribing data for a subset of medicines to advance a false narrative” and doesn’t prove free meals influenced prescribing patterns.

The study involved prescribing information for nearly 280,000 doctors in Medicare’s prescription drug program. The researchers examined data on more than 63,000 drug company payments to these doctors from August through December 2013. Most payments were free meals worth less than about $20.

The researchers included four classes of drugs – statins, antidepressants and two that treat blood pressure. Doctors who received a free meal sponsored by makers of these drugs were more likely to prescribe that drug than doctors who received no free meals. The strongest link was for Pfizer’s Pristiq: doctors who received one Pfizer-sponsored meal were two times more likely to prescribe that drug than doctors who received no freebies.

Doctors’ prescribing rates for these drugs increased as the number of sponsored meals they accepted increased.

Patients in Medicare part D (prescription) plans typically pay $4 or less for generics, versus around $40 for brand-name drugs, Dudley said.

American Medical Association voluntary ethics guidelines say doctors should decline any gifts including meals “for which reciprocity is expected or implied.”

Representatives for the companies involved said doctors are not paid to prescribe their products. Sales’ reps interactions with physicians over sponsored meals are an important part of educating them about drugs’ risks and benefits, the companies said in emailed statements.

Dr. Nitin Damle, an internist and president of the American College of Physicians, said modest gifts or meals can be ethical if they enhance patients’ care, but that doctors should ask “’what would the public or my patients think about this particular gift or meal and what is the purpose of industry offering it to me?’”

The results were published Monday in the journal JAMA Internal Medicine.



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