This bill establishes a safe harbor from patent infringement lawsuits for generic drugs and biosimilars when their labeling and marketing do not reference patented methods of use.
Ben Cline
Representative
VA-6
The Skinny Labels, Big Savings Act establishes a legal safe harbor protecting generic drug and biosimilar manufacturers from patent infringement lawsuits related to specific "method of use" patents. This protection applies when these manufacturers comply with FDA approval processes and limit their labeling and marketing to approved uses, excluding patented methods. The goal is to facilitate the entry of lower-cost generic and biosimilar alternatives into the market.
This bill, officially called the “Skinny Labels, Big Savings Act,” is all about chipping away at the legal roadblocks that keep cheaper generic drugs and biosimilars off the market. Essentially, it creates a legal safe harbor—a protective shield—for generic manufacturers when they are trying to get their products approved by the FDA (under sections 505(j) or 351(k)). Specifically, this protection prevents them from being sued for patent infringement over a method-of-use patent, provided they follow one crucial rule: they cannot reference that specific patented use in their generic drug’s labeling or marketing materials (SEC. 2).
To understand why this is a big deal, you have to look at how brand-name drugs are often protected. When a brand drug hits the market, it might be approved to treat five different conditions. The original manufacturer might have patents on the drug itself, but they also often have separate patents covering each method of use—meaning, the specific way the drug treats Condition A, Condition B, and so on. Generic makers want to enter the market for the uses where the patent has expired, but they run into a legal snag. If the brand-name drug’s label lists all five uses, the generic label has to match it for FDA approval, even if the generic maker is only seeking approval for the two non-patented uses. This forces the generic company to potentially infringe on the remaining three method-of-use patents, leading to expensive lawsuits.
This bill addresses that problem head-on by allowing generic and biosimilar manufacturers to use “skinny labels.” A skinny label is one that omits the specific, still-patented uses from the product description. The bill ensures that submitting an application to the FDA with this pared-down label, and then commercially marketing the drug with it, is explicitly not considered patent infringement. For example, if a brand-name drug treats both arthritis (patent expired) and a rare liver disease (patent active), a generic maker can now market the drug solely for arthritis without fearing a lawsuit from the brand manufacturer over the liver disease patent, as long as the liver disease use is left off their generic label (SEC. 2).
In the real world, this change is designed to speed up competition, which ultimately translates to lower prices at the pharmacy counter. When generic manufacturers face fewer legal threats, they can bring their lower-cost alternatives to market faster. This is particularly important for biosimilars—the generic versions of complex, expensive biological products like insulin or Humira. By reducing the legal risk and cost of entry, the bill aims to encourage more companies to produce these alternatives, increasing availability and driving down costs for patients, insurance companies, and taxpayers alike. The bill even applies this safe harbor to conduct that occurred before, on, or after the date of enactment, which could affect current pending lawsuits.