Food and Drug Law

Treating Depression With Ketamine? How the Investment Was Made

March 15, 2019
Biotechnology, FDA, Food and Drug Law, Health

Hunter Moss, MJLST Staffer

Depression is a serious mental disorder that afflicts millions of Americans each year. One in three of these individuals struggles to find a treatment method that alleviates their condition, and are aptly said to suffer from treatment-resistant depression. In the most severe cases, treating depression can be a life or death decision—depression is the leading cause of over 41,000 suicides every year. For those dealing with depression, every day is a struggle to persevere and try to regain a sense of normalcy.

A new therapy for treatment-resistant depression was approved by the Food and Drug Administration (FDA) earlier this week, one that could help those that have been unable to find relief elsewhere. The unexpected source of the therapy is esketamine. If the name of this drug sounds familiar, it is because the name is based on, and molecularly similar to, the street drug named ketamine. While originally synthesized in the 1960’s as an anesthetic and first used widely in the Vietnam War, ketamine is now known as a party drug, providing the user with mild hallucinations and a sense of euphoria. Due to its dangerous side-effects and potential for abuse, ketamine was placed on the Schedule III of the United States Controlled Substance Act in August of 1999.

In the early 1990’s, researchers at Yale University first recognized the potential for ketamine to treat the symptoms of depression. Since then, scientists sought to confirm the viability of ketamine as a treatment option for individuals who did not experience relief from other treatment methods. A 2012 study out of Baylor College of Medicine proved just that: 85% of patients with severe depression reported the treatment to be effective. Unlike selective serotonin reuptake inhibitors (SSRIs), which are most commonly prescribed to treat depression and can take weeks to build in a patient’s system before becoming effective, ketamine can provide nearly immediate relief with its full effect being felt in as little as two days.

With the science firmly in place, the next hurdle advocates of ketamine faced was of perception—in the eyes of the FDA and the public alike. Radical clinics began to emerge across the country to provide patients suffering from treatment-resistant depression with a safe, heavily-monitored environment to undergo care. Because ketamine had yet to be recognized as a potential aid for depression by the FDA, clinic physicians would often have to prescribe the drug under the guise of using it as an anesthetic. The “don’t ask, don’t tell” approach to a new treatment for a severe mental disorder created some inevitable quandaries for both doctors and patients, who would be unable to receive insurance coverage for a non-FDA approved treatment program.

While the medical community was well aware of the healing potential of ketamine, pharmaceutical companies were reluctant to make the investment. The average price-tag of a clinical trial for the FDA is $19m. There is certainly a market for the drug with countless Americans suffering from depression. The issue holding pharmaceutical companies back is related to patent law. In order to receive a patent, the proposed invention must be novel—and considering that ketamine has been around for nearly sixty years, that would be an impossible claim to make. Without patent protection, the multi-million dollar investment is bad economics for big pharma, even if the trials could provide relief for millions of Americans.

So why did Janssen Pharmaceuticals, the developer of a treatment method for depression based on ketamine, make the investment and receive FDA approval for its new drug Sprovato? The answer is because Sprovato is esketamine, a sufficiently different molecule from ketamine to be patentable. Certain molecules can be left-handed and have right-handed doppelgangers. While it is beyond the scope of this blog piece (and the ability of its author) to explain the difference between the two, esketamine is the left-handed version of ketamine’s right hand. The deviation between the molecules is a significant enough difference to pass the novelty requirement necessitated by the U.S. Patent and Trademark Office (USPTO). While there is some debate as to whether esketamine is as effective as its counterpart, esketamine passed the FDA’s clinical trials and, for the most part, has been received as a viable alternative to ketamine treatment. This development could help legitimize the countless ketamine clinics that have emerged across the United States over the last few years, yielding a promising new alternative for those struggling with severe depression. At the same time, the story of ketamine raises questions about the roles of several actors in the health care system, specifically pharmaceutical companies, the FDA and the USPTO, in delaying the introduction of life saving medication in order to adhere their respective financial and regulatory requirements.

Health Supplements: The “Wild West” of FDA Regulations

February 10, 2019
Administrative Law, FDA, Food and Drug Law

Gabe Branco, MJLST Staffer 

At some point, we all have taken a multivitamin and/or some type of dietary supplement. They are hard to miss in most stores such as Target or Wal-Mart.  The bright colored packaging and unfulfilling promises of “losing weight quickly” without dieting or “building muscle” without working out catches everybody’s attention. Most people assume that these products, ironically labeled “health” or “dietary” supplements, must be safe to ingest due to placing them in the same category as a “drug,” or because they deem the supplement to be “natural.” However, the reason people are mistaken is because the Food and Drug Administration (“FDA”) chooses to differentiate “health” products from “drugs.”

Under the FDA’s current regulatory scheme, “health” supplements are treated more like special foods than drugs. Drugs are considered unsafe until proven safe through clinical trials. These trials must be done on all drugs, even those that are sold without a required prescription. The trials must show that the drug is both safe and effective for the specified use. Once the drug is approved, manufacturers are subject to carefully monitored conditions and packaging requirements. The packaging requirement includes conditions the drug has been proven to treat, known side effects, contraindications, and unsafe interactions with other drugs. After the drug has been manufactured and released to the public for consumption, the FDA follows up on any adverse effects consumers and their doctors report, along with any adverse effects reported by the manufacturer.

“Dietary” supplements, on the other hand, are seen as safe until proven unsafe, a stark contrast to their drug counterpart. The Dietary Supplement Health and Education Act (DSHEA) defines “dietary” supplements as a category of food. As such, “dietary” supplements do not undergo the rigorous pre-manufacturing and post-manufacturing approval and monitoring process that drugs do. DSHEA prohibits supplements from containing anything that may have “a significant or unreasonable risk of illness or injury” when the supplement is used as directed on the label, or with regular use if there are no directions. While the regulation makes clear these supplements should not significantly or unreasonably expose the public to increased risk of harm, DSHEA fails to enforce the regulation with any preventative measures.

DSHEA effectively allows manufacturers to print any statement they wish on “dietary” supplement labels, so long as it is followed by the phrase “This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.” This practice is troublesome because the statement may suggest or claim outright that the “dietary” supplement treats symptoms or results in an outlandish outcome if taken. Even with the FDA warning, consumers would have little to no reason to assume that supplements placed on shelves everywhere could contain none of the listed ingredients or unknown ingredients that can cause adverse health effects.

The FDA has the authority to stop any production of “dietary” supplement if it is shown there is an increased risk of harm to the public. However, this only occurs after the release of the supplement and subsequent adverse effects impact consumers. Due to the lack of pre-manufacturing testing requirements, many “dietary” supplements contain germs, pesticides, or toxic heavy metals that may adversely impact consumers. In addition, many “dietary” supplements either do not contain what is listed on the label, contain more or less of what is listed on the label, or even contain ingredients not listed on the label. This issue could also stem from parties other than the manufacturers and sellers. Without any regulations pre-manufacturing, many suppliers of ingredients may mix or substitute the ingredients sold to manufacturers with less expensive or tainted filler ingredients.

These issues become problematic when an ingredient the FDA would deem a “drug” finds its way into a “dietary supplement.” Many male enhancers or muscle building “dietary” supplements have been found to contain substances much like Viagra or Cialis, which are regulated as “drugs.” In addition, certain weight loss supplements have been found to contain sibutraimine, which has been banned in the United States. All of these supplements were recalled by the FDA in a reactionary manner. However, in most instances a “dietary” supplement may contain a drug that has little to no known effects. Having little to no known effects makes it more difficult to detect if a “dietary” supplement indeed contains a drug, and if it then must undergo the more rigorous FDA drug requirements. By providing manufacturers and sellers a pathway to produce categorical “drugs” and distribute them to the public without undergoing the rigorous FDA drug testing processes, DSHEA potentially does more deregulation than regulation.

FDA regulations concerning “dietary” supplements should be as stringent as regulations governing drugs. The simplest solution would be to implement the same pre-manufacturing and post-manufacturing procedures that are required of “drug” manufacturers into the “dietary” supplement realm. Doing so would fulfill DSHEA’s requirement that the “dietary” supplements do not cause a significant or unreasonable increase in risk of injury or illness. Additionally, this would allow the FDA to regulate “drugs” to its fullest potential.

Impact of China’s Generics Push on Innovator Drug Companies

November 12, 2018
Food and Drug Law, Intellectual Property, Regulatory

Sherrie Holdman, MJLST Staffer

With a population of 1.42 billion, China presents a large market for both innovator manufacturer and generic drug companies.  Currently, about 95% of marketed drugs are sold by generics. However, many patients in China opt to use more expensive, imported, brand-name drugs.  In an effort to address this problem, China’s State Council has announced its “Opinions Concerning Reforms of Policies to Improve the Supply and Utilization of Generics” to encourage the people of China to use generic drugs early this year.  As a regulatory document, the Opinion shed light on the future direction of China’s generic market.

The Opinion identifies three important suggestions to guide implementation. The first suggestion is to promote research and development of generic drugs in China.  The Opinion proposes a drug list to be compiled that identifies drugs for which generic counterparts don’t exist yet. The Opinion also encourages the government to develop key technologies in manufacturing generics.  The second suggestion aims to improve the quality and efficacy of generic drugs. Generics will only be approved if their quality and efficacy are equivalent to the original drugs.  To facilitate this goal, the State Council proposes speeding up the conformity assessment of quality and efficacy of generic drugs and improving the quality management of generic drugs.  The third suggestion is to provide policy incentives for generics development, including implementation of a tax policy for generic manufacturers. Under this policy, a generic manufacturer, once designated as a “high technology enterprise,” will have a preferential tax rate of 15%, compared to the 25% rate for other companies.  In order to be a “high technology enterprise,” the generic manufacturer will need to meet certain qualifications. Meanwhile, the Opinion encourages patentees to voluntarily grant compulsory licenses to Chinese generic manufacturers when there is “a serious threat to the public health.”  However, despite its long existence in Chinese patent law and regulation, the compulsory licenses are historically rare in practice, partly because of the difficulty in defining what constitutes a “serious threat to the public health.”    

In order to balance the interests of innovator and generic drug companies, the Opinion provides recommendations for strengthening the enforcement of intellectual property rights.  For example, the Opinion proposes establishing an “early warning patent system” to prevent generic manufacturers from infringing on valid patents and thus mitigating the risk of infringement.  Moreover, the State Council proposed to enhance accessibility of innovative drugs, especially imported oncology drugs, by applying no tariffs on imported new drugs. A five-year patent extension for new drugs was also proposed to enhance the intellectual property protection of innovator drugs.

Following the announcements promulgated in the Opinion, on April 25, 2018, China Food and Drug Administration (CFDA) released its “Public Comment Draft of Pharmaceutical Data Exclusivity Implementing Rules (provisional).” The Draft proposes that “innovative new drugs” will enjoy six years of data protection and “innovative therapeutic biologics” will enjoy 12 years of data protection.  By proposing data protection for new drugs, China encourages multinational corporations to include China in international multicenter clinical trials and to concurrently apply for market introduction in China.  Even if the new drug is introduced to China at a later time, the drug will still be entitled to a data protection period (e.g., from one to five years). The public comment period for the Draft was closed on May 31, 2018 and the final rule is expected soon.  

Facing China’s generics push, innovator drug makers can strengthen their IP strategy in numerous ways.  For example, companies should disclose information about the patents in the drug list in a timely manner, making the public and government aware of the patents.  Further, companies should also establish a multi-directional scheme for IP rights protection including not only patent, but also knowhow, trade secret, design, trademark and copyright.

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