Law Commons^™

Solutions Still Searching For A Problem: A Call For Relevant Data To Support "Evergreening" Allegations, Erika Lietzan, Kristina M. L. Acri

Faculty Publications

For years pharmaceutical policymaking discussions have been revolving around allegations of supposed “evergreening” by pharmaceutical companies, and policymakers have considered a range of significant policy reforms — including to antitrust law and drug regulatory law — to address this purported problem. This paper evaluates empirical data offered to substantiate “evergreening” and explains that these data — though mostly accurate — do not support proposed policy changes.

The “evergreening” claim is that by securing additional patents and FDA-related exclusivities after approval of their new drugs, brand drug companies enjoy a period of exclusivity in the market that is longer than the …

Distorted Drug Patents, Erika Lietzan

Faculty Publications

Drug patents are distorted. Unlike most other inventors, drug inventors must complete years of testing to the government’s specifications and seek government approval to commercialize their inventions. All the while, the patent term runs. When a drug inventor finally launches a medicine that embodies the invention, only a fraction of the patent life remains. And yet, conventional wisdom holds — and empirical studies show — that patent life is essential to innovation in the pharmaceutical industry, perhaps more so than any other inventive industry. Congress tried to do something about this in 1984, authorizing the Patent and Trademark Office to …

The "Evergreening" Metaphor In Intellectual Property Scholarship, Erika Lietzan

Faculty Publications

This article is a plea for changes in the scholarly dialogue about "evergreening" by drug companies. Allegations that drug companies engage in "evergreening" are pervasive in legal scholarship, economic scholarship, medical and health policy scholarship, and policy writing, and they have prompted significant policymaking proposals. This Article was motivated by concern that the metaphor has not been fully explained and that policymaking in response might therefore be premature. It canvasses and assesses the scholarly literature-more than 300 articles discussing or mentioning "evergreening." It catalogues the definitions, the examples, and the empirical studies. Scholars use the term when describing certain actions …

Paper Promises For Drug Innovation, Erika Lietzan

Faculty Publications

Innovation does not stop when a new medicine is launched. Development of new uses for already approved drugs, in particular, can make profound contributions to the public health. Whether a new use is suspected during the initial premarket trials, identified through focused research after approval, or discovered serendipitously by physicians treating patients, however, it requires extensive clinical testing before it can be approved by FDA. This testing takes time and money — three to five years on average, and as much as $300 million. This Article considers the incentives that federal law offers to companies to make this investment: patent …

A Solution In Search Of A Problem At The Biologics Frontier, Erika Lietzan

Faculty Publications

This short paper comments on Professor Carrier's new article, Biologics: The New Antitrust Frontier. His article makes a profound initial contribution to a new area of scholarship, based on a large body of prior work considering antitrust issues relating to small molecule drugs. But Professor Carrier’s article, like my own forthcoming piece on innovation and competition in the biologics marketplace, is inherently speculative. We are making our best judgments about the nature of a still emerging marketplace and likely conduct in that marketplace, based on our understandings of a new regulatory framework that is itself still emerging, the broader legal …

The History And Political Economy Of The Hatch-Waxman Amendments, Erika Lietzan

Faculty Publications

Reform of the Hatch–Waxman generic drug framework is in the air. Scholars, consumer advocacy groups, regulated industry, and policymakers are engaged in heated debate about perceived shortcomings in the scheme, flaws, and unexpected loopholes. Changes in how the U.S. Food and Drug Administration (FDA) implements the law, as well as changes to the law itself, are under serious consideration. These policymaking discussions take place against a backdrop of shared assumptions about the origins and nature of the original Hatch–Waxman legislation — assumptions that this Article claims are wrong. Convention wisdom holds that the Hatch–Waxman legislation was a delicate compromise privately …

The Uncharted Waters Of Competition And Innovation In Biological Medicines, Erika Lietzan

Faculty Publications

In 2010, Congress fundamentally changed how federal law encourages the discovery and development of certain new medicines and for the first time authorized less expensive “duplicates” of these medicines to be approved and compete in the marketplace. The medicines at issue are biological medicines, generally made from, or grown in, living systems. Many of the world’s most important and most expensive medicines for serious and life–threatening diseases are biological medicines.

We have a profound interest in understanding and evaluating the impact of this legislation on innovation and competition. Scholars and courts considering this question may be tempted to reason from, …

The Law Of 180-Day Exclusivity, Erika Lietzan, Julia Post

Faculty Publications

In 1984, Congress created a statutory pathway for approval of generic drug applications and included an incentive for generic applicants to challenge the patents claiming the reference drugs on which they based their applications. The first generic applicant to file an ANDA with a patent challenge is eligible for 180 days of generic market exclusivity. This article is the fourth in a series of articles describing the resulting body of law, as interpreted and applied by FDA (in regulations, guidances, citizen petition responses, and individual decisions awarding and denying exclusivity) and the courts. The heart of the article is section …

2004 Update - 180-Day Exclusivity Under The Hatch-Waxman Amendments To The Federal Food, Drug, And Cosmetic Act, Erika Lietzan

Faculty Publications

This article updates the author's previously published article on the topic, provides some insight into recent events in this area of the law, and specifies a few minor items that were noted incorrectly in the earlier work.