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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.

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.