Archives For Hatch-Waxman

Last week the Senate Judiciary Committee held a hearing, Intellectual Property and the Price of Prescription Drugs: Balancing Innovation and Competition, that explored whether changes to the pharmaceutical patent process could help lower drug prices.  The committee’s goal was to evaluate various legislative proposals that might facilitate the entry of cheaper generic drugs, while also recognizing that strong patent rights for branded drugs are essential to incentivize drug innovation.  As Committee Chairman Lindsey Graham explained:

One thing you don’t want to do is kill the goose who laid the golden egg, which is pharmaceutical development. But you also don’t want to have a system that extends unnecessarily beyond the ability to get your money back and make a profit, a patent system that drives up costs for the average consumer.

Several proposals that were discussed at the hearing have the potential to encourage competition in the pharmaceutical industry and help rein in drug prices. Below, I discuss these proposals, plus a few additional reforms. I also point out some of the language in the current draft proposals that goes a bit too far and threatens the ability of drug makers to remain innovative.  

1. Prevent brand drug makers from blocking generic companies’ access to drug samples. Some brand drug makers have attempted to delay generic entry by restricting generics’ access to the drug samples necessary to conduct FDA-required bioequivalence studies.  Some brand drug manufacturers have limited the ability of pharmacies or wholesalers to sell samples to generic companies or abused the REMS (Risk Evaluation Mitigation Strategy) program to refuse samples to generics under the auspices of REMS safety requirements.  The Creating and Restoring Equal Access To Equivalent Samples (CREATES) Act of 2019 would allow potential generic competitors to bring an action in federal court for both injunctive relief and damages when brand companies block access to drug samples.  It also gives the FDA discretion to approve alternative REMS safety protocols for generic competitors that have been denied samples under the brand companies’ REMS protocol.  Although the vast majority of brand drug companies do not engage in the delay tactics addressed by CREATES, the Act would prevent the handful that do from thwarting generic competition.  Increased generic competition should, in turn, reduce drug prices.

2. Restrict abuses of FDA Citizen Petitions.  The citizen petition process was created as a way for individuals and community groups to flag legitimate concerns about drugs awaiting FDA approval.  However, critics claim that the process has been misused by some brand drug makers who file petitions about specific generic drugs in the hopes of delaying their approval and market entry.  Although FDA has indicated that citizens petitions rarely delay the approval of generic drugs, there have been a few drug makers, such as Shire ViroPharma, that have clearly abused the process and put unnecessary strain on FDA resources. The Stop The Overuse of Petitions and Get Affordable Medicines to Enter Soon (STOP GAMES) Act is intended to prevent such abuses.  The Act reinforces the FDA and FTC’s ability to crack down on petitions meant to lengthen the approval process of a generic competitor, which should deter abuses of the system that can occasionally delay generic entry.  However, lawmakers should make sure that adopted legislation doesn’t limit the ability of stakeholders (including drug makers that often know more about the safety of drugs than ordinary citizens) to raise serious concerns with the FDA. 

3. Curtail Anticompetitive Pay-for-Delay Settlements.  The Hatch-Waxman Act incentivizes generic companies to challenge brand drug patents by granting the first successful generic challenger a period of marketing exclusivity. Like all litigation, many of these patent challenges result in settlements instead of trials.  The FTC and some courts have concluded that these settlements can be anticompetitive when the brand companies agree to pay the generic challenger in exchange for the generic company agreeing to forestall the launch of their lower-priced drug. Settlements that result in a cash payment are a red flag for anti-competitive behavior, so pay-for-delay settlements have evolved to involve other forms of consideration instead.  As a result, the Preserve Access to Affordable Generics and Biosimilars Act aims to make an exchange of anything of value presumptively anticompetitive if the terms include a delay in research, development, manufacturing, or marketing of a generic drug. Deterring obvious pay-for-delay settlements will prevent delays to generic entry, making cheaper drugs available as quickly as possible to patients. 

However, the Act’s rigid presumption that an exchange of anything of value is presumptively anticompetitive may also prevent legitimate settlements that ultimately benefit consumers.  Brand drug makers should be allowed to compensate generic challengers to eliminate litigation risk and escape litigation expenses, and many settlements result in the generic drug coming to market before the expiration of the brand patent and possibly earlier than if there was prolonged litigation between the generic and brand company.  A rigid presumption of anticompetitive behavior will deter these settlements, thereby increasing expenses for all parties that choose to litigate and possibly dissuading generics from bringing patent challenges in the first place.  Indeed, the U.S. Supreme Court has declined to define these settlements as per se anticompetitive, and the FTC’s most recent agreement involving such settlements exempts several forms of exchanges of value.  Any adopted legislation should follow the FTC’s lead and recognize that some exchanges of value are pro-consumer and pro-competitive.

4. Restore the balance established by Hatch-Waxman between branded drug innovators and generic drug challengers.  I have previously discussed how an unbalanced inter partes review (IPR) process for challenging patents threatens to stifle drug innovation.  Moreover, current law allows generic challengers to file duplicative claims in both federal court and through the IPR process.  And because IPR proceedings do not have a standing requirement, the process has been exploited  by entities that would never be granted standing in traditional patent litigation—hedge funds betting against a company by filing an IPR challenge in hopes of crashing the stock and profiting from the bet. The added expense to drug makers of defending both duplicative claims and claims against challengers that are exploiting the system increases litigation costs, which may be passed on to consumers in the form of higher prices. 

The Hatch-Waxman Integrity Act (HWIA) is designed to return the balance established by Hatch-Waxman between branded drug innovators and generic drug challengers. It requires generic challengers to choose between either Hatch-Waxman litigation (which saves considerable costs by allowing generics to rely on the brand company’s safety and efficacy studies for FDA approval) or an IPR proceeding (which is faster and provides certain pro-challenger provisions). The HWIA would also eliminate the ability of hedge funds and similar entities to file IPR claims while shorting the stock.  By reducing duplicative litigation and the exploitation of the IPR process, the HWIA will reduce costs and strengthen innovation incentives for drug makers.  This will ensure that patent owners achieve clarity on the validity of their patents, which will spur new drug innovation and make sure that consumers continue to have access to life-improving drugs.

5. Curb illegal product hopping and patent thickets.  Two drug maker tactics currently garnering a lot of attention are so-called “product hopping” and “patent thickets.”  At its worst, product hopping involves brand drug makers making minor changes to a drug nearing the end of its patent so that they gets a new patent on the slightly-tweaked drug, and then withdrawing the original drug from the market so that patients shift to the newly patented drug and pharmacists can’t substitute a generic version of the original drug.  Similarly, at their worst, patent thickets involve brand drug makers obtaining a web of patents on a single drug to extend the life of their exclusivity and make it too costly for other drug makers to challenge all of the patents associated with a drug.  The proposed Affordable Prescriptions for Patients Act of 2019 is meant to stop these abuses of the patent system, which would facilitate generic entry and help to lower drug prices.

However, the Act goes too far by also capturing many legitimate activities in its definitions. For example, the bill defines as anticompetitive product-hopping the selling of any improved version of a drug during a window which extends to a year after the launch of the first generic competitor.  Presently, to acquire a patent and FDA approval, the improved version of the drug must be different and innovative enough from the original drug, yet the Act would prevent the drug maker from selling such a product without satisfying a demanding three-pronged test before the FTC or a district court.  Similarly, the Act defines as anticompetitive patent thickets any new patents filed on a drug in the same general family as the original patent, and this presumption can only be rebutted by providing extensive evidence and satisfying demanding standards to the FTC or a district court.  As a result, the Act deters innovation activity that is at all related to an initial patent and, in doing so, ignores the fact that most important drug innovation is incremental innovation based on previous inventions.  Thus, the proposal should be redrafted to capture truly anticompetitive product hopping and patent thicket activity, while exempting behavior this is critical for drug innovation. 

Reforms that close loopholes in the current patent process should facilitate competition in the pharmaceutical industry and help to lower drug prices.  However, lawmakers need to be sure that they don’t restrict patent rights to the extent that they deter innovation because a significant body of research predicts that patients’ health outcomes will suffer as a result.

On March 14, the Federal Circuit will hear oral arguments in the case of BTG International v. Amneal Pharmaceuticals that could dramatically influence the future of duplicative patent litigation in the pharmaceutical industry.  The court will determine whether the America Invents Act (AIA) bars patent challengers that succeed in invalidating patents in inter partes review (IPR) proceedings from repeating their winning arguments in district court.  Courts and litigants had previously assumed that the AIA’s estoppel provision only prevented unsuccessful challengers from reusing failed arguments.   However, in an amicus brief filed in the case last month, the U.S. Patent and Trade Office (USPTO) argued that, although it seems counterintuitive, under the AIA, even parties that succeed in getting patents invalidated in IPR cannot reuse their arguments. 

If the Federal Circuit agrees with the USPTO, patent challengers could be strongly deterred from bringing IPR proceedings because it would mean they couldn’t reuse any arguments in district court.  This deterrent effect would be especially strong for generic drug makers, who must prevail in district court in order to get approval for their Abbreviated New Drug Application from the FDA. 

Critics of the USPTO’s position assert that it will frustrate the AIA’s purpose of facilitating generic competition.  However, if the Federal Circuit adopts the position, it would also reduce the amount of duplicative litigation that plagues the pharmaceutical industry and threatens new drug innovation.  According to a 2017 analysis of over 6,500 IPR challenges filed between 2012 and 2017, approximately 80% of IPR challenges were filed during an ongoing district court case challenging the patent.   This duplicative litigation can increase costs for both challengers and patent holders; the median cost for an IPR proceeding that results in a final decision is $500,000 and the median cost for just filing an IPR petition is $100,000.  Moreover, because of duplicative litigation, pharmaceutical patent holders face persistent uncertainty about the validity of their patents. Uncertain patent rights will lead to less innovation because drug companies will not spend the billions of dollars it typically costs to bring a new drug to market when they cannot be certain if the patents for that drug can withstand IPR proceedings that are clearly stacked against them.   And if IPR causes drug innovation to decline, a significant body of research predicts that patients’ health outcomes will suffer as a result.

In addition, deterring IPR challenges would help to reestablish balance between drug patent owners and patent challengers.  As I’ve previously discussed here and here, the pro-challenger bias in IPR proceedings has led to significant deviation in patent invalidation rates under the two pathways; compared to district court challenges, patents are twice as likely to be found invalid in IPR challenges. The challenger is more likely to prevail in IPR proceedings because the Patent Trial and Appeal Board (PTAB) applies a lower standard of proof for invalidity in IPR proceedings than do federal courts. Furthermore, if the challenger prevails in the IPR proceedings, the PTAB’s decision to invalidate a patent can often “undo” a prior district court decision in favor of the patent holder.  Further, although both district court judgments and PTAB decisions are appealable to the Federal Circuit, the court applies a more deferential standard of review to PTAB decisions, increasing the likelihood that they will be upheld compared to the district court decision. 

However, the USPTO acknowledges that its position is counterintuitive because it means that a court could not consider invalidity arguments that the PTAB found persuasive.  It is unclear whether the Federal Circuit will refuse to adopt this counterintuitive position or whether Congress will amend the AIA to limit estoppel to failed invalidity claims.  As a result, a better and more permanent way to eliminate duplicative litigation would be for Congress to enact the Hatch-Waxman Integrity Act of 2019 (HWIA).  The HWIA was introduced by Senator Thom Tillis in the Senate and Congressman Bill Flores In the House, and proposed in the last Congress by Senator Orrin Hatch.  The HWIA eliminates the ability of drug patent challengers to file duplicative claims in both federal court and IPR proceedings.  Instead, they must choose between either district court litigation (which saves considerable costs by allowing generics to rely on the brand company’s safety and efficacy studies for FDA approval) and IPR proceedings (which are faster and provide certain pro-challenger provisions). 

Thus, the HWIA would reduce duplicative litigation that increases costs and uncertainty for drug patent owners.   This will ensure that patent owners achieve clarity on the validity of their patents, which will spur new drug innovation and ensure that consumers continue to have access to life-improving drugs.

Last week, Senator Orrin Hatch, Senator Thom Tillis, and Representative Bill Flores introduced the Hatch-Waxman Integrity Act of 2018 (HWIA) in both the Senate and the House of Representatives.  If enacted, the HWIA would help to ensure that the unbalanced inter partes review (IPR) process does not stifle innovation in the drug industry and jeopardize patients’ access to life-improving drugs.

Created under the America Invents Act of 2012, IPR is a new administrative pathway for challenging patents. It was, in large part, created to fix the problem of patent trolls in the IT industry; the trolls allegedly used questionable or “low quality” patents to extort profits from innovating companies.  IPR created an expedited pathway to challenge patents of dubious quality, thus making it easier for IT companies to invalidate low quality patents.

However, IPR is available for patents in any industry, not just the IT industry.  In the market for drugs, IPR offers an alternative to the litigation pathway that Congress created over three decades ago in the Hatch-Waxman Act. Although IPR seemingly fixed a problem that threatened innovation in the IT industry, it created a new problem that directly threatened innovation in the drug industry. I’ve previously published an article explaining why IPR jeopardizes drug innovation and consumers’ access to life-improving drugs. With Hatch-Waxman, Congress sought to achieve a delicate balance between stimulating innovation from brand drug companies, who hold patents, and facilitating market entry from generic drug companies, who challenge the patents.  However, IPR disrupts this balance as critical differences between IPR proceedings and Hatch-Waxman litigation clearly tilt the balance in the patent challengers’ favor. In fact, IPR has produced noticeably anti-patent results; patents are twice as likely to be found invalid in IPR challenges as they are in Hatch-Waxman litigation.

The Patent Trial and Appeal Board (PTAB) applies a lower standard of proof for invalidity in IPR proceedings than do federal courts in Hatch-Waxman proceedings. In federal court, patents are presumed valid and challengers must prove each patent claim invalid by “clear and convincing evidence.” In IPR proceedings, no such presumption of validity applies and challengers must only prove patent claims invalid by the “preponderance of the evidence.”

Moreover, whereas patent challengers in district court must establish sufficient Article III standing, IPR proceedings do not have a standing requirement.  This has given rise to “reverse patent trolling,” in which entities that are not litigation targets, or even participants in the same industry, threaten to file an IPR petition challenging the validity of a patent unless the patent holder agrees to specific pre-filing settlement demands.  The lack of a standing requirement has also led to the  exploitation of the IPR process by entities that would never be granted standing in traditional patent litigation—hedge funds betting against a company by filing an IPR challenge in hopes of crashing the stock and profiting from the bet.

Finally, patent owners are often forced into duplicative litigation in both IPR proceedings and federal court litigation, leading to persistent uncertainty about the validity of their patents.  Many patent challengers that are unsuccessful in invalidating a patent in district court may pursue subsequent IPR proceedings challenging the same patent, essentially giving patent challengers “two bites at the apple.”  And if the challenger prevails in the IPR proceedings (which is easier to do given the lower standard of proof), the PTAB’s decision to invalidate a patent can often “undo” a prior district court decision.  Further, although both district court judgments and PTAB decisions are appealable to the Federal Circuit, the court applies a more deferential standard of review to PTAB decisions, increasing the likelihood that they will be upheld compared to the district court decision.

The pro-challenger bias in IPR creates significant uncertainty for patent rights in the drug industry.  As an example, just last week patent claims for drugs generating $6.5 billion for drug company Sanofi were invalidated in an IPR proceeding.  Uncertain patent rights will lead to less innovation because drug companies will not spend the billions of dollars it typically costs to bring a new drug to market when they cannot be certain if the patents for that drug can withstand IPR proceedings that are clearly stacked against them.   And, if IPR causes drug innovation to decline, a significant body of research predicts that patients’ health outcomes will suffer as a result.

The HWIA, which applies only to the drug industry, is designed to return the balance established by Hatch-Waxman between branded drug innovators and generic drug challengers. It eliminates challengers’ ability to file duplicative claims in both federal court and through the IPR process. Instead, they must choose between either Hatch-Waxman litigation (which saves considerable costs by allowing generics to rely on the brand company’s safety and efficacy studies for FDA approval) and IPR (which is faster and provides certain pro-challenger provisions). In addition to eliminating generic challengers’ “second bite of the apple,” the HWIA would also eliminate the ability of hedge funds and similar entities to file IPR claims while shorting the stock.

Thus, if enacted, the HWIA would create incentives that reestablish Hatch-Waxman litigation as the standard pathway for generic challenges to brand patents.  Yet, it would preserve IPR proceedings as an option when speed of resolution is a primary concern.  Ultimately, it will restore balance to the drug industry to safeguard competition, innovation, and patients’ access to life-improving drugs.