Tag Archives: Biologic

Ticking Some Right Boxes Biosimilar Drugs’ Acceptance Gaining Steam in India

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Looking at a broader canvas, on September 19, 2023, a credible international report flashed a headline, ‘Biosimilars making inroads into Humira sales, but docs still cautious on switching: Spherix.’ This is based on a survey of U.S. healthcare specialists, including 80 dermatologists, 83 gastroenterologists and 81 rheumatologists.

This is indeed a significant development in the realm of biologic and biosimilar drugs, internationally. If this trend gathers a strong wind on its sales, it will effectively address the need for affordable biologic drugs, especially in life threatening ailments.

According to another January 05, 2023 report, Humira, which dominated the top of the global pharmaceutical brand ranking charts between 2012 and 2022, has slipped in 2023 to no 3 in ranking as it lost its last patent protection in the US in May 2022. Doctors’ gradual acceptance of biosimilars and the price could be a key differentiator among the competitors, potentially hastening Humira’s sales decline.

On July 31, 2017, I wrote an article in this blog captioned “Improving Patient Access To Biosimilar Drugs: Two Key Barriers.” Interestingly, 6 years down the line, reflecting the same sentiment – the above September 19, 2023, report also noted that ‘efficacy remains “top of mind” as prescribers’ leading concern for adalimumab (Humira) biosimilars, followed by safety concerns and an overall lack of cost savings.’

In today’s article, I shall particularly focus on the latest developments in India and the initiatives taken by the concerned stakeholders in this area. Let me start with a quick recap of biosimilar drugs, in my understanding, so that we all are on the same page while discussing the subject.

A quick recap: 

As we know, biologic drugs are medicines made from living organisms, such as bacteria, yeast, or cells. They are used to treat a wide range of conditions, including cancer, autoimmune diseases, and infectious diseases. Biosimilar drugs are highly similar copies of original biologic drugs that have gone off patent and are typically less expensive than the original biologic drugs. However, there are still some existing barriers to doctors’ fast and wider acceptance of biosimilar drugs by many.

Current global barriers to doctors’ fast acceptance of biosimilar drugs:

  • Lack of awareness and education: Many doctors are not familiar with biosimilar drugs or the regulatory process that oversees them. This lack of awareness may lead to skepticism and hesitation about prescribing biosimilar drugs to patients.
  • Concerns about safety and efficacy: Some doctors are concerned that biosimilar drugs may not be as safe or effective as biologic drugs. These concerns are often based on a misunderstanding of the regulatory process for biosimilar drugs. 
  • Financial incentives: Some doctors may be reluctant to prescribe biosimilar drugs because they receive financial incentives from biologic drug manufacturers. These incentives can take the form of speaking fees, consulting fees, and research grants. 
  • Regulatory uncertainty: In some countries, the regulatory framework for biosimilar drugs is still evolving. This uncertainty can make it difficult for doctors to know which biosimilar drugs are safe and effective, and how to use them effectively. 

Some contemporary examples show that these barriers still exist:

As shown by the following contemporary data available to the public:

  • In 2022, a study published in the journal JAMA found that only 25% of US doctors were aware that biosimilar drugs are just as safe and effective as biologic drugs.
  • In 2023, a study published in the journal Annals of Rheumatic Diseases found that only 30% of rheumatologists in the UK were willing to prescribe biosimilar drugs to their patients. 
  • In 2023, a study published in the journal Cancer found that oncologists in the US were more likely to prescribe biologic drugs to their patients if they had received financial incentives from biologic drug manufacturers. 
  • In 2023, a report published by the European Commission found that the regulatory framework for biosimilar drugs in the EU is still complex and fragmented.

Measures being taken to address these barriers, globally?

There are a number of things that can be done to address the barriers to doctors’ fast acceptance of biosimilar drugs. These include:

  • Education and outreach: More needs to be done to educate doctors about biosimilar drugs and the regulatory process that oversees them. This education should come from a variety of sources, including medical schools, professional organizations, and pharmaceutical companies.
  • Financial transparency: Pharmaceutical companies should be required to disclose all financial payments they make to doctors. This transparency will help to reduce the potential for conflicts of interest.
  • Regulatory harmonization: The EU should work to harmonize the regulatory framework for biosimilar drugs across member states. This will make it easier for doctors to prescribe biosimilar drugs to their patients.

By addressing these barriers, it is possible to increase the acceptance of biosimilar drugs and make them more accessible to patients. This will lead to lower healthcare costs and improved patient outcomes.

Indian scenario of biosimilar drugs, issues and actions:

As reported, India is a global leader in the production and development of biosimilar drugs. The Indian biosimilar market is expected to reach $30 billion by 2025. Biosimilar drugs in India are typically 30-70% cheaper than original biologic drugs. For example, a vial of the biologic drug Herceptin costs around INR 1 lakh, while a vial of the biosimilar drug Trastuzumab costs around INR 30,000.

The key reasons for price arbitrage:

The price difference between biosimilar drugs and original biologic drugs is due to a number of factors, including:

  • Lower development costs: Biosimilar drugs are less expensive to develop than original biologic drugs because they do not require the same level of research and clinical trials. 
  • Increased competition: There is more competition among biosimilar manufacturers, which drives down prices. 
  • Government support: The Indian government provides financial incentives to biosimilar manufacturers, which also helps to keep prices low. 

Biologic drugs, especially biosimilar insulin, some medications for cancer and a variety of autoimmune diseases, have been proved to be very effective for patients. That said, original biologic drugs can also be very expensive. Biosimilar drugs are making these drugs more affordable for patients.

Indian stakeholder initiatives and support is essential:

Indian key stakeholders are also supportive of the biosimilar industry and have taken a number of steps to promote its growth. Some of the recent ones are: 

  • In 2022, the Indian government announced a new policy that will give preference to biosimilar drugs in government procurement. This policy is expected to save the government billions of dollars in healthcare costs.
  • In 2023, the Indian government launched a new awareness campaign to promote the use of biosimilar drugs. The campaign is targeting doctors, patients, and healthcare policymakers.
  • In 2023, a number of leading private hospitals in India announced that they would be switching to biosimilar drugs for a range of conditions. These hospitals include Apollo Hospitals, Fortis Healthcare, and Max Healthcare.
  • In 2023, the Indian Pharmaceutical Alliance (IPA) released a report that found that the use of biosimilar drugs in India had increased by 20% in the past year. The report also found that the use of biosimilar drugs was expected to continue to grow in the coming years.

These are just a few examples of the growing acceptance of biosimilar drugs in India. As more and more doctors and patients become aware of the benefits of biosimilar drugs, we can expect to see their use continue to grow in the coming years.

State-specific advantages for greater acceptance of biosimilar drugs in India: 

As available from different reports, the following are some specific examples of state-specific advantages that have led to the greater acceptance of biosimilar drugs in India:

  • In 2022, the government of Maharashtra launched a scheme to provide financial incentives to doctors who prescribe biosimilar drugs. Under the scheme, doctors who prescribe biosimilar drugs to at least 20% of their patients are eligible to receive a bonus of up to INR 10,000 per month.
  • In 2023, the government of Gujarat launched a campaign called “Biosimilar Drugs: Safe, Effective, and Affordable.” The campaign aims to educate doctors and patients about the benefits of biosimilar drugs and to dispel any myths or misconceptions about them. 
  • The states of Karnataka and Telangana have a number of leading biopharmaceutical companies that are developing and manufacturing biosimilar drugs. These companies are working with doctors and hospitals in these states to promote the use of biosimilar drugs. 

As a result of these advantages, the acceptance of biosimilar drugs is growing rapidly in some states in India. For example, in Maharashtra, the use of biosimilar drugs increased by 25% in the past year.

Conclusion:

Against the above backdrop, I reckon, the acceptance of biosimilar drugs is gaining steam in India now. This is due to a number of factors, including rising costs of original biologic drugs, government support, growing availability of biosimilar drugs, and increasing awareness and education.

It is important to note that biosimilar drugs are just as safe and effective as original biologic drugs, but they are much more affordable. This is making it possible for more patients to access the treatment they need, especially for life-threatening ailments. 

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

Meeting India’s Unmet Biologic Drug Needs Some Global Synergy Evident – But Patients Need More

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Many reports have vindicated the rapidly growing importance of biologic drugs in the treatment of a wide range of complex ailments. These include autoimmune diseases, cancers, hormonal irregularities, anemia, and to prevent various diseases such as vaccines, have drawn healthcare experts’ attention globally.

As defined by experts, Biologics are larger, more complex molecules compared to traditional small molecule pharmaceutical drugs. Unlike traditional pharmaceuticals, they require some components from a living organism to be manufactured.

The critical importance of biologic drugs lies in their ability to provide innovative treatment options, address unmet medical needs, and significantly impact patient outcomes in various disease areas. Towards this endeavor, a clear pathway for focused initiatives is warranted, especially in countries like India.

This article will explore this domain to get a sense of how much and how fast the country is progressing in this space, having huge healthcare significance, for all. Let me start with a quick recap on the areas of seminal importance of biologic drugs – to help all to be on the same page – as I start this deliberation.

The critical importance of biologic drugs:

The critical importance of biologic drugs, I reckon, lies in their unique properties and therapeutic potential:

Targeted Therapies: Designed to interact with specific molecules or receptors in the body, allowing for targeted treatment. This specificity can enhance the efficacy of the drug while reducing potential side effects on healthy cells and tissues.

Novel Treatment Options: Offer novel treatment options for diseases that were previously difficult to manage or had limited treatment options. They have revolutionized the management of conditions such as rheumatoid arthritis, psoriasis, multiple sclerosis, and certain types of cancer.

Personalized Medicine: Paving the way for personalized medicine, as it can be tailored to individual patients based on factors like genetic profiles or specific disease characteristics. This approach allows for more precise and effective treatment strategies.

Disease Modification: Unlike some traditional drugs that primarily alleviate symptoms, biologics can often modify the underlying disease process. They can target specific pathways or molecules involved in disease progression, potentially leading to long-term benefits and improved outcomes.

Improved Quality of Life: Has the potential to significantly improve the quality of life for patients living with chronic or debilitating conditions. By effectively managing symptoms and slowing disease progression, they can reduce pain, disability, and the need for other interventions.

It is important to note that biologic drugs are complex to manufacture, often require specialized infrastructure, and can be costly. No wonder why the India specific research paper - published on January 18, 2023 commented: “Although various biologic drugs are already available, they are still not within reach of the common person due to financial constraints.”  This prompts me to explore with examples some of the key issues that Indian patients confront while meeting this health need.

Patient access to original biologic drugs in India faces several key barriers:

Patient access to original biologic drugs in India faces several key barriers, including: 

1. Cost and Affordability:

- Trastuzumab (Herceptin): The cost of a single course of Herceptin, used in the treatment of breast cancer, can range from several lakhs to crores of rupees, making it financially burdensome for many patients in India.

- Eculizumab (Soliris): Eculizumab, used in the treatment of rare blood disorders, can cost several lakhs of rupees per month, making it unaffordable for most patients.

2. Limited Healthcare Coverage:

- Many health insurance policies in India have limitations or restrictions on coverage for expensive biologic drugs, requiring patients to bear a significant portion of the cost out of pocket.

- Some government-funded healthcare schemes, such as the Pradhan Mantri Jan Arogya Yojana (PMJAY), may have restrictions on coverage for expensive biologic therapies, limiting patient access.

3. Regulatory Barriers:

- The approval process for biosimilar versions of original biologic drugs could face delays in India. For example, the biosimilar version of Trastuzumab (Herceptin) faced delays in obtaining regulatory clearance, resulting in delayed patient access to more affordable alternatives.

- The regulatory requirements for original biologic drugs can be complex and time-consuming, leading to delays in drug approvals and subsequent patient access.

4. Limited Local Manufacturing:

- Drugs like Bevacizumab (Avastin) and Adalimumab (Humira) used in India are often imported, leading to supply chain challenges and potential delays in availability.

- Limited local manufacturing of certain original biologic drugs can result in dependence on imported versions, leading to potential pricing issues and supply disruptions.

5. Physician Awareness and Education:

- Some physicians may have limited awareness or familiarity with prescribing guidelines and clinical benefits of certain original biologic drugs. This can result in underutilization or hesitation in prescribing these therapies.

- Lack of specific training and education programs for physicians regarding the latest advancements in original biologic drugs can impact their knowledge and confidence in prescribing them.

6. Patient Education and Understanding:

- Patients may have limited knowledge about the availability and benefits of original biologic drugs. For instance, patients with chronic diseases like rheumatoid arthritis may not be aware of the benefits of newer biologic treatments over traditional therapies.

- Lack of patient education about the appropriate use and potential side effects of original biologic drugs can lead to hesitancy or misconceptions among patients, affecting their willingness to pursue these therapies.

These specific examples illustrate how cost, limited healthcare coverage, regulatory barriers, limited local manufacturing, physician awareness, and patient education can act as barriers to patient access to original biologic drugs in India.

Healthcare impact of inadequate access and availability of biologic drugs in India:

The inadequate access and availability of biologic drugs in India can have several significant healthcare impacts: 

Suboptimal Disease Management: Biologic drugs often provide highly effective and targeted treatments for complex diseases such as cancer, autoimmune disorders, and rare genetic conditions. The lack of access to these therapies can result in suboptimal disease management, leading to poorer patient outcomes, increased disease progression, and reduced quality of life for affected individuals.

Delayed or Incomplete Treatment: Inadequate access to biologic drugs can result in delays or interruptions in treatment. For chronic or progressive diseases, timely initiation and consistent use of these therapies are critical. Delayed or incomplete treatment can compromise the effectiveness of interventions, leading to prolonged disease activity, exacerbation of symptoms, and potential irreversible damage in some cases.

Increased Healthcare Burden: Without access to appropriate biologic therapies, patients may require more frequent hospitalizations, emergency room visits, or other healthcare interventions to manage their conditions. This can place an additional burden on healthcare systems, leading to increased healthcare costs and strain on resources.

Reduced Treatment Options: Biologic drugs often represent the most advanced and effective treatments available for certain diseases. Inadequate access to these therapies limits treatment options for patients, forcing them to rely on less effective or outdated treatments. This restricts the ability of healthcare providers to offer the best available care to patients, potentially leading to compromised treatment outcomes.

Health Inequity: Inadequate access to biologic drugs can exacerbate health inequities in India. Patients from lower socioeconomic backgrounds or those without sufficient insurance coverage may face greater barriers to accessing these expensive therapies. This can result in disparities in healthcare outcomes, with some individuals being unable to afford or access the best available treatments for their conditions.

Impact on Research and Innovation: Inadequate access to biologic drugs can hinder clinical research and innovation in India. Limited availability may reduce opportunities for conducting clinical trials and studying the effectiveness of these therapies in the local population. This, in turn, can hamper the development of new treatments and advancements in healthcare.

Addressing the inadequate access and availability of biologic drugs is crucial to ensure equitable healthcare outcomes, optimize disease management, and reduce the burden of complex diseases in India.  

Increasing need for biosimilar drugs in India and issues involved:

From the above perspective, increasing the availability of biosimilar drugs in India is crucial. Fostering competition may improve affordability. Thereby, it would increase access to essential therapies – bridging treatment gaps, disease management, healthcare system sustainability and foster market competition and innovation.

However, it can ensure that patients receive appropriate and effective treatments while addressing the healthcare challenges faced by a diverse population, only when some key barriers created for biosimilar drug entry, besides patent thickets, are also adequately addressed. One such way is creating a global synergy in this space by collaborating with MNC pharma – having deep pockets and other requisite wherewithal.

Some global synergy is evident in this critical healthcare space:

The good news in this space has started flowing. There have been several collaborations between multinational pharmaceutical companies (MNCs) and domestic Indian drug companies to develop even high potential interchangeable biosimilar drugs in India. Here are a few examples:

- Biocon and Mylan: Biocon has collaborated with Mylan, a global pharmaceutical company, to develop and market biosimilar products. This collaboration has resulted in the development and approval of biosimilar drugs such as Trastuzumab (Herceptin) and Adalimumab (Humira) in India. 

- Dr. Reddy’s Laboratories and Merck: Dr. Reddy’s Laboratories, an Indian multinational pharmaceutical company, entered into a collaboration with Merck & Co., a global pharmaceutical company, to develop biosimilar versions of biologic drugs. This collaboration has resulted in the development and launch of biosimilars such as Pegfilgrastim (Neulasta) and Rituximab (Rituxan) in India.

- Cadila Healthcare and Novartis: Cadila Healthcare, an Indian pharmaceutical company, collaborated with Novartis, a multinational pharmaceutical company, to develop and manufacture biosimilars. This collaboration has resulted in the development of biosimilar drugs such as Rituximab (Ritucad) and Bevacizumab (Bevatas) in India.

These are just a few examples of collaborations between MNCs and Indian drug companies in the field of interchangeable biologic drugs. The landscape of collaborations and partnerships in this area is dynamic, and there may be more ongoing collaborations between companies to develop and commercialize biosimilars in India.

Conclusion:

Overall, patient access to biosimilar drugs in India is crucial for ensuring affordable and comprehensive healthcare, improving patient outcomes, and promoting a competitive pharmaceutical market. It helps address the challenges of access and affordability of biologic drugs, ultimately benefiting the well-being of patients across the country – promoting healthcare equity, and the sustainability of the healthcare system in the country. But patients need more…much more.

By: Tapan J. Ray      

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

A Game-Changing Non-Covid Drug Approval In the Pandemic Milieu

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Amid high decibel deliberations on Covid-19 pandemic, something similar to groundbreaking happened – involving Biosimilar drugs, in just a couple of months ago. On July 28, 2021, in the Eldorado of the pharma industry, the US-FDA approved  the first ‘interchangeable’ biosimilar drug, for wider access to modern and much affordable treatment of diabetes. This is expected to open new vistas of opportunity for biosimilar drugs, in general, across the world.

The development is even more interesting, as the product named Semglee belongs to India’s largest biopharmaceutical company - Biocon Biologic. It’s an ‘interchangeable’ biosimilar insulin glargine, referencing Sanofi’s, reportedly  the second best-selling product in 2020 - Lantus. Notably, the Biocon product was launched in 2020 without the ‘interchangeability’ designation.

Although, the patent of this long-acting insulin (glargine) – used to treat diabetes type I and II, expired during 2015, in 2020 also Lantus generated some 2.7 billion U.S. dollars worldwide. Many envisage, the approval of this first ‘interchangeable’ biosimilar insulin glargine will foster stronger competition in the insulin market, which is currently dominated by a handful of brands, like Lantus – and characterized by their stubbornly high prices.

In today’s article, I shall focus on what it means to pharma marketers for greater market access to ‘interchangeable’ biosimilar drugs.

What ‘interchangeability’ really means:

As I wrote in my article on July 31,2017, there are two key barriers to improving patient access to biosimilar drugs, and one of which is the issue of their ‘interchangeability’ with original biologic drugs. It means, besides being highly similar, a biosimilar drug would require indisputable clinical evidence – that it gives the same result to patients, just as the original biologic medicine.

Thus, lack of the ‘interchangeability’ designation makes many physicians hesitant to switch, for all those existing patients who are on expensive original biologic drugs, to less expensive available biosimilar alternatives. Only new patients in that case, are prescribed biosimilar drugs, sans ‘interchangeability’ label from the drug regulator, especially in the US.

Overcoming a tough barrier to biosimilar market growth:

This was echoed by another article on ‘Interchangeability’ of biosimilars, published in the Pharmaceutical Journal on July 22, 2020. It wrote, ‘One of the hurdles in the adoption of biosimilars is the lack of interchangeability with reference biologics.’ While interchangeability is an important issue for doctors, ‘different definitions and regulatory frameworks that exist in the United States, Europe and other jurisdictions add to the complexity.’

What the ‘interchangeable’ designation of Semglee will really mean, in terms of affordability to patients, was lucidly explained in an article, published in the AJMC – the center for Biosimilars – on July 29, 2021. It underscored: ‘An interchangeable designation means that Semglee can be substituted for Lantus automatically by pharmacists without physicians’ permission.’ As reported, Semglee will cost nearly 3 times less than the list price of Sanofi’s Lantus, which in 2019 clocked in at $283.56 for a single vial and $425.31 for a box of five pens, in the US.

Are interchangeable biosimilars superior to other biosimilars?

The ‘interchangeable’ designation is not meant to suggest that such biosimilars are superior to ones without this label. However, to obtain the ‘interchangeable’ designation, biosimilar manufacturers are required to perform ‘switching studies.’ These provide evidence that patients who are using originator’s biologic drug, when switch to a comparable biosimilar, do not experience higher rates of adverse events or decreased efficacy. The same has also been clearly explained in the AJMC article of July 29, 2021, as mentioned above.

But, if marketed well, ‘interchangeable’ biosimilars can provide a cutting edge to encourage consumers to switch to the less-expensive ‘interchangeable’ versions of the original higher priced biologic drugs. Consequently, more economical ‘interchangeable’ biosimilars would carve out a larger market share, creating a win-win situation. For patients, it will expand affordable access to biologic drugs- and for the company increased revenue from the expanding biosimilar market, as several studies point out.

Expanding biosimilar market:

According to the IQVIA report of March 04, 2021, the global biosimilars market currently shows double-digit growth and is expected to maintain a similar level of uptake in the coming years. This will be driven by the rising incidence of chronic diseases and the cost-effectiveness of biosimilars, especially as more stringent cost-containment measures are likely – post COVID-19 pandemic.

The paper concluded, biosimilars will continue to register impressive growth in their market share, aided by patent expiries and regulatory improvements which will permit easier and more rapid market access. Many pharmaceutical companies – having witnessed this trend, are now preparing to leverage the biosimilar opportunity. However, marketing large molecule biosimilar drugs will not be quite the same as marketing small molecule generics. 

Estimated savings to patients with biosimilars – in Covid-19 context:

As the IQVIA Institute estimates, over the next five years biosimilars could globally contribute a cumulative $285 billions of savings to patients and payers. To put this in context, it says, over the same period, around $150 billion will be spent on COVID-19 vaccines. According to a senior IQVIA official, as quoted by Reuters Events of July 2, 2021: “The five-year savings from biosimilars could almost double the amount of incremental spending that will be going out to get everybody vaccinated around the world.”

Going by the IQVIA data, biosimilars are between 20% and 50% more affordable. And this is especially at a time when affordability drives a lot of healthcare - sustainability that has emerged as a major issue during the pandemic.

Conclusion:

Currently, in many countries of the world, alongside Covid vaccination drive in top gear, creation of a disruptive pandemic-specific – a robust health infrastructure for the future, is yet to be in place. More importantly, public health facilities, especially in India, are still struggling hard to meet affordable health care needs of patients – sans restrictions or apprehensions of getting infected by Covid-19.

Against this backdrop, the very first approval of an ‘interchangeable’ biosimilar drug, in the Eldorado of pharma business – the US, brings a new hope to many patients, in 2021. An expectation of reducing their healthcare burden, significantly. This will happen, as the prescribers muster enough confidence to advise patients switching from highly expensive original biologic to more affordable ‘interchangeable’ biosimilar drugs, as and when these are launched.

In tandem, with this growing new confidence, others – even ‘non-interchangeable’ biosimilar drugs, will be able to deliver more value being, besides greater affordability – wider access to sustainable-treatments for patients.

This comes, possibly with a caveat. Biosimilar drug marketers will need to chart a new marketing frontier, without holding on to their pre-covid strategies – especially for large molecule biosimilar drugs.

From this perspective, the US-FDA’s regulatory approval of the first ‘interchangeable’ biosimilar insulin to Sanofi’s high-priced Lantus, carries a game-changing potential in the biosimilar drug market, for astute pharma marketers to leverage.

By: Tapan J. Ray   

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

Spirit Behind Drug Patent Grant: Secondary Patents: Impact on Drug Access

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For more effective treatment against existing diseases, besides combating new or a more complicated form of existing ailments with precision, drug innovation is absolutely necessary and on an ongoing basis. This makes innovative drugs so important for the population, globally.

Besides academia, the pharma industry has remained in the forefront of the search for new drugs, for so long. What makes this process so crucial is, cheaper generic drugs flow from the innovative drugs, post market exclusivity period, which together form the bedrock of the pharma industry’s business model. Consequently, a robust patent protection for the new molecular entities, not only enable the drug innovators to make a reasonably good profit, but also encourage them to keep this virtuous circle moving, faster.

Although, the drug patents are granted for 20 years, after obtaining marketing approval from the respective drug regulators, a time period - ranging between 7 and 12 years, is available to the company to realize its maximum commercial benefits. Thereafter, the patent expires, paving the way of market entry of cheaper generic equivalents to make the drug accessible to a larger population. This is the playbook, which deserves to be accepted and respected by all, both in the letter and spirit.

Currently, the narrative has started changing, apparently, repudiating the spirit behind the grant of new drug patents, especially with the entry of a number of expensive, large molecule biopharmaceutical drugs. After obtaining a fixed-term market exclusivity, more intricate legal measures are being taken to extend the fixed-term market monopoly for an unknown period, delaying market entry of cheaper biosimilar equivalents, post patent expiry, as long as possible.

In this milieu, India appears to be the only country in the world, where the country’s ‘Patents Act’ provides enough safeguard to blunt those legal tools, effectively, to protect patients’ health interest. Quite expectedly, this new narrative of the drug innovators is yielding the best return in the Eldorado of the pharma world – the Unites States. It is also no secret that US vehemently opposes several provisions of the Indian Patents Act 2005, under pressure from the most powerful pharma lobby group, as many believe.

Using the spirit behind drug patent protection as the backdrop, I shall dwell in this article, how this so precious spirit is gradually losing its basic purpose, especially for blockbuster biopharma drugs. Is the key intent behind sacrificing the spirit behind drug patent grant to keep their brands money spinners and big – even after expiry of original patent – as long as possible – at the cost of patients’ health interest?

Despite the original patent expiry, biggest biologic drugs remain big:

The fact that original patent expiries have done little to halt sales of some of the industry’s biggest products – mostly biologic drugs, was clearly elucidated in an  Evaluate Pharma article – “Biopharma’s biggest sellers – the oldies that just keep giving,” published on August 14, 2019. This gets vindicated, as we look at the ‘top ten pharma brands with biggest lifetime sales – from launch to 2018’, in the following Table I:

Product Company Launch year USD Billion
1. Lipitor Pfizer 1997 164.43
2 Humira AbbVie 2003 136.55
3. Rituxan Genentech/Biogen 1997 111.50
4. Enbrel Amgen 1998 108.16
5. Epogen Amgen 1988 107.90
6. Advair GSK 1998 104.20
7. Remicade Janssen 1998   98.00
8. Zantac GSK 1981   97.42
9. Plavix Sanofi/BMS 1998   90.63
10. Herceptin Genentech/Roche 1998   87.97

(Adapted from Evaluate Pharma data of August 14, 2019)

The point to take note of:

The point worth noting here, with the exception of Advair, Zantac, Lipitor and Plavix, all others – among the top ten brands, are biologic drugs. Moreover, what is most striking in the Table I, despite the expiry of the original patents, a large number of biologic brands were able to expand their sales, pretty impressively, for well over two decades. As we shall see later, this situation is expected to continue, at least, till 2024.  As the Evaluate Pharma article states, for various reasons, these multibillion dollar brands have been able to avoid the expected post patent expiry ‘onslaught from biosimilars in the key US market’, which is incidentally the most valuable pharma market in the world.

One of the key reasons that helps delaying cheaper biosimilar drug entry expanding patient access, is a crafty strategic measure adopted by these companies through the creation of a Patent Thicket with secondary patents. As I discussed in this Blog on April 22, 2019, this is a crafty way of ‘evergreening’ patent term beyond 20 years, legally. Whether such measures conform to the spirit of granting 20 years product patent, becomes a moral question, or an issue of probity for the concerned companies, at the most. Be that as it may, a concern over this situation has been raised in many countries, including the United States.

Barrier of secondary patents: 

Biosimilar drug developers continue facing multiple non-financial challenges, such as, scientific, regulatory, pricing. I have already discussed some of these barriers in this blog on July 31, 2017. Instead, I shall focus in this article, with greater detail, on the intricate and a well-woven net of secondary patents. However,before delving into this area, it will be worthwhile to have a quick recap on the basic differences between original patents and secondary patents.

According to WIPO, “Patents on active ingredients are referred to as primary patents. In later phases of the drug development, patents are filed on other aspects of active ingredients such as different dosage forms, formulations, production methods etc. These types of patents are referred to as secondary patents.”

Another excellent paper, authored by two distinguished researchers from Columbia University and LSE, makes some important points on this subject. It says, secondary patents have become increasingly important to the pharma industry, especially in the U.S. and Europe over the past three decades. The basic purpose of ‘taking out multiple patents on different aspects of a drug in order to cordon off competitors is now standard practice in the pharmaceutical industry.’ As the authors further said, this is primarily because: ‘Secondary patents can protect market shares by extending periods of exclusivity beyond the dates in which patent protection would otherwise lapse.’

Interestingly. devising patent strategies to extend periods of market exclusivity is generally considered in the industry, as a key component of ‘product life cycle management,’ – not by the marketing whiz kids, but by astute patent attorneys. Nevertheless, as the paper articulates, critics of this practice often use the more pejorative – evergreening, to describe it.

Examples of impact of secondary patents:

Many research papers suggest, besides scientific complexity in biosimilar drug development being a key reason for their delayed market entry, secondary patents are even tougher barriers for the same. This was brought to light a few years ago in a ‘Review Article’ – ‘The Economics of Biosimilars’, published in the September/October 2013 issue of American Health & Drug Benefits.

Some of the key points made on this issue include,AbbVie plan to defend Humira (adalimumab) with more than 200 secondary patents, Merck’s giving up its biosimilar project on Enbrel when Amgen got its expanded patent life. There are many other such instances.

Its effect would last longer: 

Experts believe, the effect of creating a strong secondary patent shield around blockbuster biologic would last much longer. As the above Evaluate Pharma article underscores: ‘This ability to fend off biosimilar competition is one of the reasons Humira is set to snatch Lipitor’s crown next year as the industry’s most successful drug.’

The Table II below that lists ‘top 10 pharma brands from their respective launch date, including estimated forecast till 2024’, vindicates its long-lasting impact:

Product Company Launch year USD Billion
1. Humira AbbVie 2003 240.05
2 Lipitor Pfizer 1997 180.19
3. Enbrel Amgen 1998 139.83
4. Rituxan Genentech/Biogen 1997 136.07
5. Revlimid Celgene 2008 123.64
6. Remicade Janssen 1998 117.20
7. Epogen Amgen 1988 115.87
8. Herceptin Genentech/Roche 1998 114.89
9. Avastin Genentech/Roche 2004 114.27
10. Advair GSK 1998 113.61

(Adapted from Evaluate Pharma data of August 14, 2019)

Although, Zantac and Plavix no longer feature in this table, one drug that leapfrogged much of the competition to become one of the industry’s biggest future bestsellers is Revlimid. The projected sales of the drug over the next six years will actually outstrip its sales to date. However, much of this is dependent on whether generic competition will arrive ahead of Revlimid’s 2022 patent expiry, the paper indicated.

Concern expressed even in the US for the delay in biosimilar market entry:

Many big spending countries on health care, such as the United States expected that timely biosimilar drug entry will help contain health expenditure significantly. However, the article published in the Fierce Pharma on August 29, 2019, raises an alarm, but with a hope for the future. It says: “It’s no secret biosimilars haven’t made a big dent in U.S. drug spending. Some experts have even said it’s time to give up on copycat biologic.”

This hope gets resonated with what, ‘the former US-FDA commissioner Scott Gottlieb argues’. He feels, ‘It’s too soon for that’, while ‘calling on Congress to bolster the budding market.’ However, in my personal view, this will remain a difficult proposition to implement, as biologic drug players will continue using their relatively new, but powerful weapon of filing a number of complex ‘secondary patents.’ These will help extend the market exclusivity period of their respective brands, much beyond the original patent grant period, unless a counter legal measures are taken by the lawmakers of various countries, including the United States. But, India is an exception in this regard.

Indian patent law doesn’t encourage ‘secondary patents’:

The good news is, Indian Patent Act 2005, doesn’t encourage ‘secondary patent.’ This is because, section 3 (d) of the Indian Patent Act 2005 limits grant of ‘secondary pharmaceutical patents.’ An interesting study reported on February 08, 2018, discussed about 1,700 rejections for pharma patents at the IPO spanning over the last decade. But, there is a huge scope for improvement in this area.

Which is why, the not so good news is under-utilization of the same section 3.d by the Indian Patent Office (IPO), as are being voiced in many reports. One such paper of April 25, 2018 highlighted,72 per cent of pharma patent grants are secondary patents. These were granted for marginal improvements over previously known drugs for which primary patents exist. That said, despite such reported lapses, blocking of some crucial secondary patent grant has benefited a large number of patient population of India.

Blocking secondary patent grant has helped India immensely:

While US recognizes secondary patents, blocking secondary patent grant, especially for biologic drugs has helped Indian patients immensely, with expanded access to those medicines. This was also captured in the above study. Besides the classic case of Novartis losing its secondary patent challenge for Glivec in the Supreme Court of India in 2013, several other examples of secondary patent rejection are also available. This includes, among others, Glivec of Novartis and the world’s top selling drug for several years – Humira of AbbVie.Against a month’s therapy cost of ₹1,6o, ooo for Glivec in the US, its Indian biosimilar version costs for the same period ₹11,100. Similarly, while the treatment cost with Humira in the US is ₹85,000, the same with its biosimilar version in India is ₹ 13,500, as the above study finds.

Conclusion:

The core purpose of drug innovation, as widely touted by the R&D-based drug companies, is meeting the unmet needs of patients in the battles against diseases. Thus, drug innovation of this genre must not just be encouraged, but also be adequately protected and rewarded by granting product monopoly for a 20-year period from the date of the original patent grant. Curiously, piggybacking on this basic spirit behind the drug patent grant, pharma lobby groups are now vocal on their demand for giving similar treatment to secondary patents on various molecules. The tone of demand gets shriller when it comes to section 3. d of the Indian Patents Act, which doesn’t allow such ‘evergreening’ through secondary patents.

Thus, the key question that surfaces, while the original patent grant for innovative drugs help meeting unmet needs of some patients, whose unmet needs would a secondary patent grant meet, except making the concerned company richer? Further, for highly expensive biologic drugs, delayed market entry of cheaper biosimilars in that process, would deny their expanded access – failing to meet the unmet needs of scores of others.

Hopefully, India won’t give in to pressure of multinational pharma lobby groups, channeled through various powerful overseas government entities. At the same time, I hope, the government in power at the Eldorado of the pharma industry, will consider giving a fair chance of market entry to cheaper biosimilars, including those from India, to also grow their business globally, but in a win-win way.

The key objective of all stakeholders involved in this process, should be to uphold the basic spirit behind drug patent grant. It may even call for challenging the core intent behind secondary patent applications, the world over, that deny quicker market entry for cheaper biosimilars, sans heavy litigation expenses. This will help expand access to cheaper biologic medicines to all those who can’t afford those, otherwise.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

 

 

 

Is India A Success Story With Biosimilar Drugs?

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How Indian generic companies are expanding, if not shifting their business focus on biosimilar and complex generic drugs, may be a current trend of general discourse – but the initiative is not a current one. This journey commenced decades ago with an eye on the future. In those days, Indian players were already dominating the global markets of small molecule generic drugs. Interestingly, it started much before the big global players decided to enter into this segment – especially post patent expiry of large molecule blockbuster drugs.

This strategy not just exhibits a sound business rationale, but also benefits patients with affordable access to biosimilar versions of high cost biologic drugs. In this article, I shall dwell on this subject, basically to understand whether India is a success story with large molecule biosimilar drugs, both in terms of drug development, and also in its commercial performance.

India’s journey began with the dawn of the new millennium:

About two decades back from now, some Indian pharma companies decided to step into an uncharted frontier of large molecule biosimilar drugs. According to the ‘Generics and Biosimilars Initiative (GaBI)’, in 2000 – the first biosimilar drug, duly approved by the Drug Controller General of India (DCGI), was launched in the country.  This was hepatitis B vaccine from Wockhardt – Biovac-B.

I hasten to add, in those years, there were no specific regulatory pathways for approval of large molecule biosimilar drugs in India. Thus, the same marketing approval guidelines as applicable to small molecule generic drugs, used to be followed by the DCGI for this purpose. Specific guidelines for biosimilar drugs were implemented on September 15, 2012, which was subsequently updated in August 2016. To date, around 70 large molecule biosimilar drugs, including biopharmaceuticals, have been introduced in India, as the GaBI list indicates.

It is equally important to note that well before any other countries, domestic pharma companies launched in India, AbbVie’s blockbuster Humira (adalimumab) and Roche’s breast cancer treatment Herceptin (trastuzumab). In this context, it is worth mentioning that US-FDA approved the first biosimilar product, Zarxio (filgrastim-sndz), in March 2015.

Will India be a key driver for global biosimilar market growth?

According to the Grand View Research Report of July 2018, increasing focus on biosimilar product development in countries, such as India, China and South Korea, is a major growth driver of the global biosimilar market. As this report indicates, the global biosimilars market size was valued at USD 4.36 billion in 2016, which is expected to record a CAGR of 34.2 percent during 2018-25 period.

Europe has held the largest revenue market share due to a well-defined regulatory framework for biosimilars was in place there for quite some time, and was followed by Asia Pacific (AP), in 2016. Growing demand for less expensive therapeutic products and high prevalence of chronic diseases in the AP region are expected to contribute to the regional market growth – the report highlighted.

Further, the Report on ‘Country-wise biosimilar pipelines number in development worldwide 2017’ of Statista also indicated that as of October 2017, India has a pipeline of 257 biosimilar drugs, against 269 of China, 187 of the United States, 109 of South Korea, 97 of Russia and 57 of Switzerland. However, post 2009 – after biosimilar regulatory pathway was established in the United States, the country has gained significant momentum in this segment, presenting new opportunities and also some challenges to biosimilar players across the world.

Is Indian biosimilar market growth enough now?

An important point to ponder at this stage: Is Indian biosimilar market growth good enough as of now, as compared to its expected potential? Against the backdrop of India’s global success with generic drugs – right from the initial stages, the current biosimilar market growth is certainly not what it ought to be. Let me illustrate this point by drawing an example from theAssociated Chambers of Commerce of India’s October 2016 White Paper.

According to the Paper, biosimilars were worth USD 2.2 billion out of the USD 32 billion of the Indian pharmaceutical market, in 2016, and is expected to reach USD 40 billion by 2030. This represents a CAGR of 30 percent. A range of biologic patent expiry in the next few years could add further fuel to this growth.

A similar scenario prevails in the global market, as well. According to Energias Market Research report of August 2018, ‘the global biosimilar market is expected to grow significantly from USD 3,748 million in 2017 to USD 34,865 million in 2024, at a CAGR of 32.6 percent from 2018 to 2024.’

Many other reports also forecast that the future of biosimilar drugs would be dramatically different. For example, the ‘World Preview 2017, Outlook to 2022 Report’ of Evaluate Pharma estimated that the entry of biosimilars would erode the total sales of biologics by as much as 54 percent through 2022, in the global markets. It further elaborated that biologic sales may stand to lose up to USD 194 billion as several top blockbuster biologic drugs will go off-patent during this period.

Although, current growth rate of the biosimilar market isn’t at par with expectations, there is a reasonable possibility of its zooming north, both in India and the overseas markets, in the near future. However, I would put a few riders for this to happen, some of which are as follows:

Some uncertainties still exist:

I shall not discuss here the basic barriers that restrict entry of too many players in this segment, unlike small molecule generics. Some of which are – requisite scientific and regulatory expertise, alongside wherewithal to create a world class manufacturing facility a complex nature. Keeping those aside, there are some different types of uncertainties, which need to be successfully navigated to succeed with biosimilars. To get an idea of such unpredictability, let me cite a couple of examples, as hereunder:

1. Unforeseen patent challenges, manufacturing and regulatory issues:

  • Wherewithal to effectively navigate through any unexpected labyrinth of intricate patent challenges, which are very expensive and time-consuming. It may crop up even during the final stages of development, till drug marketing, especially in potentially high profit developed markets, like for biosimilars of Humira (AbbVie) in the United States or for Roche’s Herceptin and Avastin in India.
  • It is expensive, time consuming and risk-intensive to correct even a minor modification or unforeseen variation in the highly controlled manufacturing environment to maintain quality across the system, to ensure high product safety. For example, what happened to Biocon and Mylan with Herceptin Biosimilar. As the production volume goes up, the financial risk becomes greater.
  • There are reports that innovator companies may make access to supplies of reference products difficult, which are so vital for ‘comparability testing and clinical trials.’  This could delay the entire process of development of biosimilar drugs, inviting a cost and time-overrun.
  • Current regulatory requirements in various countries may not be exactly the same, involving significant additional expenditure for overseas market access.

2. User-perception of biosimilar drugs:

Studies on perception of biosimilar vis-à-vis originator’s biologic drugs have brought out that many prescribing physicians still believe that there can be differences between originator’s biologic medicine and their biosimilar equivalents. With drug safety being the major concern of patients, who trust their physician’s decision to start on or switch to a biosimilar, this dilemma gets often translated into doctors’ preferring the originator’s product to its biosimilar version. One such study was published in the September 2017 issue of Bio Drugs. Thus, the evolution of the uptake of biosimilars could also depend mainly on similar perception of physicians.

What happens if this perception continues?

Whereas, the W.H.O and drug regulators in different countries are quite clear about comparable safety and efficacy between the originator’s product and its biosimilar variety, some innovator companies’ position on biosimilar drug definition, could help creating a perception that both are not being quite the same, both in efficacy and safety.

To illustrate this point, let me reproduce below how a top ranked global pharma company - Amgen, defines biosimilar drugs, starting with a perspective of biologic medicines:

“Biologic medicines have led to significant advances in the treatment of patients with serious illnesses.These medicines are large, complex molecules that are difficult to manufacture because they are made in living cells grown in a laboratory. It is impossible for a different manufacturer to make an exact replica of a biologic medicine due to several factors, including the inherent complexity of biologics and the proprietary details of the manufacturing process for the original biologic medicine, often referred to as the reference product.It is because of this that copies of biological products are referred to as “biosimilars”; they are highly SIMILAR but not identical to the biologic upon which they are based.”

Could dissemination of the above concept through a mammoth sales and marketing machine to the target audience, lead to creating a better perception that the originators’ biologic drugs are better than their biosimilar genre?

Other realities:

Despite the availability of a wide array of biosimilar drugs, the prescription pattern of these molecules is still very modest, even in India. One of its reasons, as many believe, these are still not affordable to many, due to high out-of-pocket drug expenses in India.

Thus, where other biosimilars of the same category already exist, competitive domestic pricing would play a critical role for faster market penetration, as happens with small molecule generic drugs.

Another strategic approach to address cost aspect of the issue, is to explore possibilities of sharing the high cost and risks associated with biosimilar drug development, through collaborative arrangements with global drug companies. One good Indian example in this area is Biocon’s collaboration with Mylan.

Conclusion:

The question on whether Indian biosimilar market growth is good enough, assumes greater importance, specifically against the backdrop of domestic players’ engagement in this segment, since around last two decades. Apart from the important perception issue with biosimilars , these medicines are still not affordable to many in India, owing to high ‘out of pocket’ drug expenditure. Just focusing on the price difference between original biologic drugs and their biosimilars, it is unlikely to get this issue resolved. There should be enough competition even within biosimilars to drive down the price, as happened earlier with small molecule generics.

That said, with around 100 private biopharmaceutical companies associated with development, manufacturing and marketing of biosimilar drugs in India, the segment certainly offers a good opportunity for future growth. Over 70 such drugs, most of which are biosimilar versions of blockbuster biologic, are already in the market. Today, Indian companies are stepping out of the shores of India, expecting to make their presence felt in the global biosimilar markets, as they did with generic drugs.

The future projections of biosimilar drugs, both in the domestic and global markets are indeed very bullish. But to reap a rich harvest from expected future opportunities, Indian players would still require some more grounds to cover. Overall, in terms of biosimilar drug development since 2000, India indeed stands out as a success story, but a spectacular commercial success with biosimilars is yet to eventuate.

By: Tapan J. Ray   

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

A ‘Toxin’ Delaying Success of Biosimilar Drugs

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The above comment, although sounds a bit harsh, was made recently by none other than Scott Gottlieb - the Food and Drug Administration Commissioner of the United States. He expressed his anguish while explaining the reasons for a delayed launch of several important biosimilar drugs.

We know, this new genre of drugs has a potential to be a quick game changer, significantly improving access to affordable biologic medicines for many patients. Unfortunately, much desired accelerated progress in this direction, got considerably retarded in the face of a strong headwind, craftily created by the innovator companies, as is widely believed. There are various ways of creating the same. However, the two major ones can be ascribed to:

  • Getting caught in the labyrinth of complex patent challenge.
  • General apprehensions of many doctors on the efficacy and safety of biosimilars as compared to reference drugs.

This is happening in major markets, including India, in varying degree, though.  In this article, I shall deliberate on this issue, starting with the largest pharma market of the world and then focusing on India.

‘Toxin’ that delays biosimilar drug launch:

“Americans could have saved $ 4.5 billion in 2017, if all of the FDA-approved biosimilars were actually available in the United States, instead of getting delayed because of litigations or other agreements.” The Food and Drug Administration Commissioner of the United States – Scott Gottlieb, reportedly, made this comment on July 18, 2018.

Gottlieb referred to some of these as a “toxin” that have prevented other drug makers from launching biosimilar medicines. He accused the manufacturers of pricey biologic medicines of using “unacceptable” anti-competitive tactics to keep competitors off the market. These cost Americans billions of dollars – the report highlighted.

These tactics, as the US FDA commissioner said, are being deliberately used by the innovator pharma and biotech companies and can be corroborated with several examples. One such is the fact that despite the expiration ofthe ‘composition of the matter’ patent for Humira (adalimumab) in December 2016, its ‘non-composition of the matter’ patent would expire not earlier than 2022. The company has therefore made settlement agreements with Amgen and Samsung Bioepis, delaying the launch of adalimumab biosimilars until January 2023.

Protecting own patents Big Pharma challenging rivals’ patents:

Both these are happening for original biologic and biosimilar equivalents, often by the same manufacturers. For example, the Reuters report of October 02, 2016, titled  ‘Big Pharma vs Big Pharma in court battles over biosimilar drugs’ highlighted, although Novartis and Amgen are at each other’s throats in court over the Swiss drug maker’s Enbrel copy, but the two are still cooperating on a drug for migraines.

“One of the biggest surprises has been the number of innovator Biopharma companies, like Amgen, now developing biosimilars to compete with the products of other innovator companies,” the article observes. It also reports that Sanofi, Merck, Eli Lilly, Pfizer, Johnson & Johnson and Biogen are also embroiled in lawsuits over biosimilars.

This trend vindicates that the line dividing makers of brand-name drugs and copycat medicines is blurring as companies known for innovative treatments queue up to peddle copies of rivals’ complex biological medicines, Reuters noted. Consequently, they are now doing both – protecting their high-price products from biosimilars drugs,while simultaneously challenging rivals’ patent claims.

There is another interesting side to it. Notwithstanding, biosimilars are a cost-effective alternative to biologic drugs that could improve patients’ access to expensive biological medicines, prescribers’ perception of biosimilar medicines are still not quite positive, just yet.

Doctors’ attitude on biosimilar prescription:

To illustrate this point, let me quote from recent research findings in this area. One such is the May 2017 study on “Medical specialists’ attitudes to prescribing biosimilars.” The key points are as follows:

  • Between 54 and 74 percent of the specialists are confident in the safety, efficacy, manufacturing and Pharmacovigilance of biosimilars.
  • 71 percent of specialists agreed that they would prescribe biosimilars for all or some conditions meeting relevant clinical criteria.
  • Specialists are less confident about indication extrapolation and switching patients from an existing biologic.
  • The most common situations that they would not prescribe a biosimilar was where there was a lack of clinical data supporting efficacy (32 percent), or evidence of adverse effects.

Overall, medical specialists held positive attitudes towards biosimilars, but were less confident in indication extrapolation and switching patients from the original biologic. Several experts believe that constantly highlighting the fear factors against biosimilar drugs, such as possible risks of interchangeability with reference product, or immunogenicity related serious consequences, though very rare, are fueling the fire of apprehensions on the wide use of biosimilar medicines.

However, several reviews, like the one that I am quoting here finds that ‘switching from the reference product to related biosimilar drug is not inherently dangerous.’I discussed this issue, with details in one of my articles, published in this blog on July 31, 2017.

Any therapeutic difference between the original biologic and biosimilars?

As the US-FDA says: “Patients and their physicians can expect that there will be no clinically meaningful differences between taking a reference product and a biosimilar drug when these products are used as intended. All reference products and biosimilar products meet FDA’s rigorous standards for approval for the indications (medical conditions) described in product labeling.”

The key point to take note of is that the US drug regulator categorically reiterates: “Once a biosimilar has been approved by the FDA, patients and health care providers can be assured of the safety and effectiveness of the biosimilar, just as they would for the reference product.”

The invisible barriers to biosimilar drugs in India:

Although, there are no specific data requirements for interchangeability of biosimilar drugs with the reference product, as mentioned in the latest Indian Guidelines on similar biologic, other visible and visible barriers are restricting the rapid growth of drugs belonging to this genre.

An interesting research study finds, like many other drugs, the cost of biosimilars is a major barrier to the rapid growth of the market in India. The Deloitte Report, titled “Winning with biosimilars: Opportunities in global markets” also articulated: “Approximately 70 percent of the country’s population is considered rural and will focus on the cost of therapy – a 20-30 percent discount on originator biologics may not be sufficient.”

Moreover, many patients who are on original biologic drugs, costing higher than related biosimilars and want to switch over to affordable equivalents, are not able to do so. In many cases, doctors’ do not encourage them to do so, for various reasons, including the general assertion that original biologic drugs are more effective. India being considered as the global capital of diabetes, let me cite an example from this disease area, just to drive home the point.

A recent experience on biosimilar drug interchangeability in India:

Just the last week, I received a call from a friend’s wife living in Delhi who wanted to know whether Lantus 100 IU/ml of Sanofi can be replaced with Glaritus 100 IU/ml of Wockhardt, as the latter costs much less. I advised her to consult their doctor and request accordingly. She said, it has already been done and the doctor says Lantus is a better product.

To get a fact-based idea on what she told me, I referred to two circulars of the National Pharmaceutical Pricing Authority (NPPA) – one for Glaritus and the other one for Lantus and found that both are under drug price control and have respective ceiling prices. As both the circulars are of 2009, these may probably be treated as an indicative price difference. NPPA notified price for a 3 ml cartridge of Glaritus reads as Rs.135. 24. Whereas, the same for Lantus was mentioned as Rs.564.84.

Is an original biologic generally superior to Indian biosimilars?

US-FDA has already reiterated, “Once a biosimilar has been approved by the FDA, patients and health care providers can be assured of the safety and effectiveness of the biosimilar, just as they would for the reference product.”

However, to get India-specific, evidence-based information in this area, I checked, whether Lantus has any clinically proven therapeutic superiority over Glaritus. Interestingly, I came across the results of a 12-week study concluding that biosimilar insulin glargine, Glaritus, is comparable to the reference product, Lantus – providing a safe and effective option for patients with T1DM. Nevertheless, the researchers did say that more studies are required in this area.

The core question that needs to be addressed why is the doctor’s perception so different and the reasons for the same?

Conclusion:

In view of all that has been discussed in this article, I find it challenging to fathom that in the absence of any credible and conclusive specific study, how could a doctor possibly infer that higher priced imported original biologic drugs are generally superior to lower priced biosimilar equivalents? More so, when in India, there are no regulatory issues on interchangeability between original biologic and its biosimilar equivalent.

Or for that matter, a branded generic product is superior to all other equivalent generic drugs without a brand name? This can happen, especially when the vested interests actively work on ensuring that such a perception gains ground, boosting the sales revenue and mostly at the cost of patients’ interest.

As one would witness in many other spheres of life that creating a blatantly self-serving, positive target audience perception, by any means, primarily aimed at destroying the same of others, is assuming increasing importance. Are we seeing the reflection of the same, even in the field of evidence based medical science?

I reckon, it raises a flag for all to ponder, particularly after reading the recent candid comments of the US-FDA commissioner, as quoted above.

Could this be one of those ‘Toxins’, which delays success of biosimilar drugs?

By: Tapan J. Ray   

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

 

‘Rigged’ Payment System Limits Biosimilar Access

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As often discussed, market entry of biosimilars, in general, brings a new hope not just for many patients, but also to biosimilar drug manufacturers – planning to get marketing approvals of these drugs in the United States, the El Dorado of global pharma industry.

Stakeholder expectations keep increasing manifold as biosimilars offer cheaper treatment options with biologic drugs in many life-threatening and rare diseases. However, biosimilars still remain an unfulfilled promise.

The January 2018 paper by Trinity Partners on “The State of US Biosimilars Market Access” in the largest drug market of the world makes an important observation in this regard. It says, the promise of biosimilars offering cost-saving competition in the lucrative US biologic market, remains largely unfulfilled.

As on date, adoption of biosimilars has been hindered by lack of market access due to complex contracting dynamics, besides regulatory and legal uncertainty, and a general lack of clinical comfort with biosimilars.

Consequently, current state of biosimilar acceptance and access appear too insignificant. More so, as compared to traditional small molecule generic markets where their use is fueled by automatic substitution and payer formularies, over higher priced branded reference drugs.

It would not have been difficult, especially for the innovative biologic drug makers to brush this important study aside, had the US-FDA Commissioner – Scott Gottlieb would not have voiced what he did in March this year.

With this perspective, I shall discuss in this article, how access to biosimilar drugs are getting limited. In doing so, I shall begin with what the US-FDA Commissioner has recently highlighted in this area.

Yet another barrier:

As reported by Bloomberg on March 07, 2018, the US-FDA Commissioner Scott Gottlieb unambiguously expressed that biologic drug manufacturers enter into exclusive arrangements with Pharmacy Benefit Managers (PBMs) and insurers, who agree to cover only the old brands in return for rebates or discounts. This “rigged” payment scheme might quite literally scare the biosimilar competition out of the market altogether, he articulated, categorically.

US-FDA Commissioner delivered this speech at the National Health Policy Conference for America’s Health Insurance Plans. During this deliberation, Gottlieb criticized some unwanted and avoidable practices that stifle biosimilar development.

He observed, of the 9 approved biosimilars in the US, only 3 could be launched market. In many instances, patent litigation is the reason for such delay in launch, post FDA approval. Connecting the dots, the Commissioner observed, even after being in the market, biosimilars continue facing more uncertainty due to a ‘rigged payment scheme.’

Started with a great promise:

It is worth noting, till 2010 no regulatory pathway for marketing approval of biosimilars was in place in the world’s largest pharma market – the United States. Hence, despite biosimilar drugs being a treatment option in many countries over the last two decades, the first biosimilar was launched in the US, following this pathway, only in 2015. It was Zarxio ((Filgrastim-sndz) of Novartis – indicated for the treatment of patients with acute myeloid leukemia (AML).

Since then, US-FDA has approved nine biosimilars. Ironically biosimilar market size still remains small and much below the general expectations. Most biosimilar manufacturers are navigating through multiple tough hurdles for market launch of this relatively new genre of complex drugs.

Navigating through tough hurdles:

There are tough hurdles to navigate through, while launching biosimilars, especially in the US. Some of which are as follows:

Protracted litigations: The development and launch of most biosimilars get stuck in the multiple patent web-lock, created around original biologic molecules, leading to long drawn expensive litigations.

Pricing: Following small molecule generic drugs, most payers and consumers expect biosimilar pricing too will be no different. However, in practice, most biosimilars are priced just around 15 percent to 20 percent less than original biologics.

Interchangeability: Lack of interchangeability among presently approved biosimilars in the US limits payers’ and consumer choice for a shift from the reference biologic drugs to suitable biosimilars. This virtually restricts the use of biosimilars mostly to such drug-naïve patients.

Confidence: For various reasons, the confidence and familiarity of both physicians and the consumers on biosimilars remain suboptimal. Whether relatively cheaper biosimilars can be used in the same indications as the reference biologic to the new patients – as an alternative choice, is still not clear to many of them. This situation calls for increasing awareness programs involving all stakeholders.

Manufacturing: The manufacturing process of large molecule biosimilars is quite costly as compared to small molecule generic drugs. Hence, these are unlikely to follow a similar pricing pattern, attracting as high a discount as around 80 percent, compared to original branded drugs.

Some of these barriers I have discussed in my article, titled ‘Improving Patient Access To Biosimilar Drugs: Two Key Barriers’, published in this blog on July 31, 2017.

Conclusion:

Be that as it may, drug manufacturers continue to see tremendous opportunity in biosimilars. The interest is heating up, as about six of the top 10 biologic drugs are expected to go off-patent in the US by 2019.

Despite all this, it is generally believed, the prevailing situation will change even in the US. The regulator is expected to facilitate smoother market entry of biosimilars, facing much less obstacles on the way. As many strongly believe, these are possibly an outcome of intense industry lobbying, with the high-level policy makers.  Many of these hurdles can be removed by the regulators, themselves, including drug interchangeability.

The US-FDA Commissioner Scott Gottlieb has already said in a meeting on March 07, 2018, the FDA will start educating doctors and patients to minimize clinical and other concerns related to biosimilars. Therefore, going forward, greater competition in the biosimilar space is expected to increase the long-awaited price differential, as compared to reference biologic.

With greater support from the regulators, biosimilars still show a unique promise of greater acceptance and access to patients – occasionally ‘Rigged’ maneuvers by the vested interests notwithstanding.

By: Tapan J. Ray

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.

Patent Expiry No Longer End of The Road

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Who says that the phenomenal success of blockbuster drugs is mostly eaten away by  ‘look-alikes’ of the same, immediately after respective patent expiry? It doesn’t seem to be so any longer, not anymore! Several examples will vindicate this emerging trend. However, I shall quote just a few of these from the published reports.

In 2016, the patent of AbbVie’s Humira (Adalimumab), indicated in the treatment of autoimmune diseases and moderate to severely active rheumatoid arthritis, expired in the United States (US). It will also expire in Europe by 2018. This event was expected to create significant opportunities for lower priced Adalimumab biosimilars in the US market, increasing the product access to many more patients at affordable prices. Just as it happens with patent expiry of small molecule blockbuster drugs. One of the classic examples of which, is a sharp decline in sales turnover and profit from Pfizer’s Lipitor (Atorvastatin), as its patent expired on November 30, 2011.

However, Humira topped the prescription-drug list of 2016 with an annual growth of 15 percent, accounting for USD 16 billion sales, globally. More interestingly, according to a recent report of EvaluatePharma, AbbVie’s Humira will continue to retain its top most ranking in 2020 with expected sales of USD 13.9 billion. Nevertheless, possible threat from biosimilars has slightly slowed down its growth. Although, there are many other similar examples, I would quote just three more of these to illustrate the point, as follows:

  • Rituxan (Rituximab, MabThera) indicated in the treatment of cancer and co-marketed by Biogen and Roche, went off-patent in 2015. However, in 2016, the product held 4th position in the prescription drug market with a revenue growth of nearly 3 percent. Even five years after its patent expiry, Rituxan is still expected to occupy the 17th rank with an estimated turnover of over USD 5 billion in 2020, according to the EvaluatePharma report.
  • Remicade (Infliximab) indicated for autoimmune diseases and manufactured by J&J and Merck, lost market exclusivity in 2015. But, in 2016 it still held 5th place in the global ranking. Five years after it goes off patent, Remicade is expected to feature in the 6th rank in 2020, with an estimated turnover of over USD 6.5 billion, according to the same report as above.
  • The US product patent for Lantus – a long-acting human insulin analog manufactured by Sanofi, expired in August 2014. However, in 2016, clocking a global turnover of USD 6.05 billion, Lantus still ranked 10 in the global prescription brand league table. Six years after its patent expiry – in 2020, Lantus will continue to feature in the rank 20, as the same EvaluatePharma report estimates.

These examples give a feel that unlike small molecule blockbuster drugs, patent expiry is still not end of the road to retain this status for most large molecule biologics, across the world. In this article, I shall discuss this point taking Humira as the case study.

What about biosimilar competition?

In any way, this does not mean that related biosimilars are not getting regulatory approval in the global markets, post-patent expiry of original biologic drugs, including the United States. Nonetheless, biosimilar makers are facing new challenges in this endeavor, some of which are highly cost intensive, creating tough hurdles to make such drugs available to more patients at an affordable price, soon enough. It happened for the very first biosimilar to Humira, as well. On September 23, 2016, almost immediately after its patent expiry in 2016, the USFDA by a Press Release announced approval for the first biosimilar to Humira (adalimumab). This was Amgen’s Amjevita (adalimumab-atto), indicated for multiple inflammatory diseases.

The second biosimilar to AbbVie’s Humira – Boehringer Ingelheim’s Cyltezo (adalimumab-adbm), was also approved by the USFDA in August 2017. So far, six biosimilars have been introduced in the United states. But, none of these got approved as an ‘interchangeable’ product. Some of these, such as Cyltezo could not even be launched, as yet. I shall discuss this point later in this article. Thus, Humira is expected to retain its top global prescription brand ranking in 2020 – over 4 years after its patent expiry.

In Europe, two marketing authorizations were reportedly granted by the European Commission (EC) in March 2017 for Amgen’s biosimilars to Humira, named Amgevita (adalimumab) and Solymbic (adalimumab). Later this year, in November 2017 Boehringer Ingelheim’s – Cyltezo also received its European marketing approval.

It is worth noting that in December 2014, the Drug Controller General of India (DCGI) reportedly granted marketing approval for Zydus Cadila’s Adalimumab biosimilar (Exemptia) for treating rheumatoid arthritis and other autoimmune disorders in India. The company claims: “This novel non-infringing process for Adalimumab Biosimilar and a novel non-infringing formulation have been researched, developed and produced by scientists at the Zydus Research Centre. The biosimilar is the first to be launched by any company in the world and is a ‘fingerprint match’ with the originator in terms of safety, purity and potency of the product.”

Several important reasons indicate why a full throttle competition is lacking in the  biosimilar market early enough – immediately after patent expiry of original biologic molecules. I shall cite just a couple of these examples to illustrate the point. One is related to aggressive brand protection, creating a labyrinth of patents having different expiry dates. And the other is a regulatory barrier in the form of drug ‘interchangeability’ condition, between the original biologic and related biosimilars:

In the labyrinth of patents:

The most recent example of innovator companies fiercely protecting their original biologic from the biosimilar competition by creating a labyrinth of patents is Boehringer Ingelheim’s Cyltezo. This is biosimilar to AbbVie’s Humira, approved by the USFDA and EC in August 2017 and November 2017, respectively.

According to reports: “BI does not intend to make the drug commercially available in Europe until the respective SPC (supplementary protection certificate) for adalimumab, which extends the duration of certain rights associated with a patent, expires in October 2018. Cyltezo is also not yet available in the US despite its approval there in August, because of ongoing patent litigation with AbbVie. AbbVie reportedly holds more than 100 patents on Humira, and believes that Boehringer could infringe 74 of these with the launch of its biosimilar. Similarly, the firm has also taken Amgen to court to block the launch of its proposed Humira biosimilar.”

Another interesting example is the epoch-making breast cancer targeted therapy Trastuzumab (Herceptin of Roche/Genentech). The patent on Herceptin reportedly expired in 2014 in Europe and will expire in the United States in 2019. The brand registered a turnover of USD 2.5 billion in 2016. However, a November 21, 2017 report says that creating a series of hurdle in the way of Pfizer’s introduction to Herceptin biosimilar, Roche has sued Pfizer for infringement of 40 patents of its blockbuster breast cancer drug. Pfizer hasn’t yet won approval for its Herceptin biosimilar, though, USFDA accepted its application in August 2017 – the report highlights

‘Interchangeability’ condition for biosimilars:

In the largest global pharma market – the United States, USFDA classifies biosimilars into two very distinct categories:

  • Biosimilars that are “expected to produce the same clinical result as the reference product”
  • Biosimilars that are “interchangeable,” or able to be switched with their reference product

According to reports, experts’ argument over ‘interchangeability’ in the US range from “whether pharmacists should be allowed to switch a biologic for its biosimilar without a doctor’s notification, to whether interchangeable biosimilars might be perceived as better or safer than their non-interchangeable counterparts.” This debate has somewhat been resolved by the US Food and Drug Administration’s (FDA) issuance of draft guidance in January 2017, specifying what should be submitted to support an interchangeable application, the report says.

The article also indicates, “the draft makes clear that switching studies to help gain this designation should evaluate changes in treatment that result in two or more alternating exposures (switch intervals) to the proposed interchangeable product and to the reference product. Study design, types of data and other considerations are also included in that draft.” Nonetheless, compliance with this regulatory requirement is expected to be highly cost intensive, too.

Quoting a senior USFDA official, a report dated June 26, 2017 mentioned: “interchangeable biosimilars will come to market within the next two years, though possibly sooner. And the first interchangeable biosimilar will likely be reviewed by an FDA advisory committee of outside experts.” Still the bottom line remains no biosimilar has yet been approved by the USFDA as ‘interchangeable’. Hence, the optics related to desirable success for biosimilars continue to remain somewhat apprehensive, I reckon.

Patent related litigations on Trastuzumab (Herceptin) were filed by Roche in India, as well. However, it’s good to note that on December 01, 2017, by a Press Release, USFDA announced the approval of Mylan’s biosimilar variety of Roche’s blockbuster breast cancer drug – Herceptin. Mylan’s Ogivri was co-developed with Biocon in India to treat breast or stomach cancer, and is the first biosimilar approved in the United States for these indications. It is noteworthy that Ogivri also has not been approved as an interchangeable product.

The global and local scenario for biosimilars:

Be that as it may, the July 26, 2017 study of Netscribes – a global market intelligence and content management firm estimates that the global biosimilar market will be worth USD 36 billion by 2022. Some of the major findings of this study are as follows:

  • With a cumulative share of nearly 85%, North America, Europe, and Japan are the major contributors to global biological and biosimilar sales. Asia and Africa account for 13.2% and 1.2%, respectively.
  • Pfizer is the leading player in the biologic market, with sales of nearly USD 45.9 billion in 2016 followed by Novartis (41.6 billion) and Roche (39.6 billion).
  • Biosimilar approvals are estimated to be around of around 16 to 20 biosimilars between 2018 to 2021 in both US and EU.
  • The US is not a favorable market for biosimilars due to a number of reasons, such as poor access to biologic drugs and an unfavorable regulatory environment.
  • South Africa is one of the best-suited markets for biosimilars due to a favorable regulatory environment and prescriber acceptance.

According to the April 2017 analysis of Research And Markets, biosimilars have started winning key government tenders in countries like Mexico and Russia, and being purchased by a growing number of patients in self-pay markets such as India. The aggregate sales of ‘copy biologics’ in the six BRIC-MS (Brazil, Russia, India, China, Mexico, and South Korea) countries would now almost certainly exceed USD 1.5 billion. Yet Another estimate  expects the Indian biosimilar market to increase from USD 186 million in 2016 to USD 1.1 billion in 2020. It is up to individual experts to assess whether or not this growth trend for biosimilars is desirable to adequately benefit a large number of patients, the world over.

Conclusion:

In my view, if what usually happens to sales and profit for small molecule blockbuster drugs post patent expiry, would have happened to the large molecule biologic drugs, the market scenario for biosimilars would have been quite different. In that scenario, one would have witnessed a plethora of biosimilar competition against high priced and money churning biologics, such as Humira, being launched with a significantly lesser price than the original brand.

Prices of biosimilars would have been much lesser primarily because, the litigation cost, now built into the biosimilar prices for successfully coming out of the labyrinth of patents after the basic patent expiry, would have been minimal. Moreover, restrictions on drug ‘interchangeability’ would not have made the target market smaller, especially in the United states.

Alongside, compliance with the regulatory need to meet the ‘interchangeability’ condition in the US, would drive the product cost even higher. More so, when this specific regulatory requirement is not necessary in other developed markets, like Europe. Both these factors would adversely impact affordability and access to sophisticated biologic drugs for patients, even after the fixed period of market exclusivity.

That said, a virtually impregnable patent labyrinth mostly ensures that going off-patent isn’t end of the road for blockbuster biologic drugs to continue generating significant revenue and  profit, any longer – and it would remain so at least, in the short to medium term.

By: Tapan J. Ray 

Disclaimer: The views/opinions expressed in this article are entirely my own, written in my individual and personal capacity. I do not represent any other person or organization for this opinion.