Aaron Seth Kesselheim

Patents on Small-Molecule Drugs Approved by the US Food and Drug Administration, 1990-2019

Importance Patent protection allows pharmaceutical companies to charge high prices for prescription drugs during periods of market exclusivity, and their expiration usually defines when generic competitors can enter the US market. Patents on drug active ingredients are classified...

Pitfalls of announcing regulatory policy in medical journals

<b>Sean Tu</b> and <b>Aaron Kesselheim</b> argue that sidestepping established administrative processes to announce major regulatory policies undermines transparency, public participation and trust, and regulatory legitimacy

Money, Meals, and Marketing in Medicine: A 13‐Year Follow‐Up Survey of Physicians

Pharmaceutical company marketing to physicians is known to impact prescribing patterns. In 2011, we surveyed medical students and residents about physician/industry relationships. In 2024, we resurveyed the same participants to study changes in their behaviors over time and their...