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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.

 

 

 

 

Will ‘Patent Thicket’ Delay Biosimilar Drug Entry in India?

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Do pharma and biotech investors encourage companies indulging in ‘patent thicket?’ This question recently grabbed media headlines. On April 02, 2019, one such report brought out: AbbVie investors are calling for the Chair-CEO power split, flagging the CEO’s USD 4 million bonus payout, fueled by the company’s Humira ‘patent thicket’ strategy related aggressive price hikes. It prolonged the brand’s market monopoly, blocking entries of its cheaper biosimilar equivalents.

I have discussed some related issues in this blog, previously. As the issue is gaining relevance also in the Indian context, this article will deliberate the ill-effects of ‘patent thicket’ on patient health-interest. The sole beneficiaries for the creation of this self-serving labyrinth are the manufacturers of high-priced patented drugs, as reported above. Before I proceed further, let me recapitulate what exactly is a ‘patent thicket.’

‘Patent Thicket’:

The dictionary definition of patent thicket is: ‘A group of patents in a field of technology which collectively impede a party from commercializing its own patents or products in that field.’In the current context, it means a dense web of overlapping patent rights that restrict a generic or a biosimilar drug maker from commercializing its cheaper equivalents post expiry of the original patent.

This scenario has been well-captured by the above media report, which states: “AbbVie leadership has also been accused of creating a ‘patent thicket’ in its battle to stave off biosimilar competitors to Humira.” Boehringer Ingelheim is among the few still fighting AbbVie’s ‘patent thicket’ hoping to launch its Humira biosimilar - Cyltezo, even after receiving US-FDA approval on August 29, 2017. ‘Top biosimilar makers, including Novartis’ Sandoz unit and Mylan, have settled their own Humira patent fights with deals that put off launches until 2023,’ the report indicated.

In its favor: AbbVie says, Cyltezo infringes about 70 patents the company currently holds for Humira. Whereas, ‘Boehringer’s lawyers say AbbVie’s copious patents overlapped in an attempt to exclude competitors from the market.’ Notably, in March this year, New York’s UFCW Local 1500 Welfare Fund, reportedly, also accused AbbVie of using overlapping patents to exclude biosimilars.

‘Patent thicket’ – a way of ‘evergreening’ beyond 20 years patent term:

Much concern is being raised about various ploys of especially by the drug MNC and their lobby groups – directly or under a façade, to delay entry of cheaper generic drugs for greater patient access. Mostly the following two ways are followed for patent ‘evergreening’ beyond the term of 20 years:

  • ‘Incremental innovation’ of the existing patented drugs through molecular manipulation, with its clinical performance and safety profile remaining similar to the original one. As the cost benefits of such drugs are not shared with patients, cannibalizing the sales of the older molecular version with the newer one highlighting its newness, the sales revenue can be protected. With this approach, coupled with marketing muscle power with deep-pocket the impact of generic entry of the older version can almost be made redundant. For example: Omeprazole was first marketed in 1989 by AstraZeneca, under the brand name Losec (later changed to Prilosec at the behest of the US-FDA). When Prilosec’s US patent expired in April 2001, AstraZeneca introduced esomeprazole (Nexium) as a patented replacement drug. Both are nearly identical in their clinical efficacy and safety.
  • ‘Patent thicket’ is yet another tool for ‘evergreening’, delaying launch of similar drugs, or resorting to ‘pay for delay’ sort of deals. As another recent report reiterates, AbbVie’s ‘patent thicket’ for Humira, has deterred other potential challengers, such as Amgen, Samsung Bioepis and most recently Mylan, each of which struck settlements with AbbVie to delay their biosimilar challenges in the United States.

Goes against patients’ health interest:

On May 09, 2018, the Biosimilars Council reported, just as generic medicines saved Americans USD 1.67 trillion in the last decade, biosimilars are poised to do the same – ‘if they aren’t thwarted by delaying tactics instituted by some pharmaceutical companies.’ Echoing similar concern, the outgoing US-FDA Commissioner Scott Gottlieb also, reportedly said, ‘some drugmakers are using unacceptable tactics such as litigation and rebate schemes to stall the entry of cheaper copies.’

‘Of the nine biosimilars the FDA has approved to date, only three have made it into the hands of patients – an alarmingly small number. Patients can’t access the six others due to barriers thrown in their way by pharmaceutical companies that want to protect their monopolies and keep prices high,’ highlights the Biosimilars Council report. Net sufferer of this self-serving ‘patent thicket’ strategy of pharma and biotech players to extend product patents beyond 20 years, are those patients who need these drugs the most – to save their lives.

Despite law, patent ‘evergreening’ still not uncommon in India:

With section (3d) on the Indian Patents Act 2005 in place, the country is expected to protect itself from patent ‘evergreening’ through ‘incremental innovation.’ This section articulates:“For the purposes of this clause, salts, esters, ethers, polymorphs, metabolites, pure form, particle size, isomers, mixtures of isomers, complexes, combinations and other derivatives of known substance shall be considered to be the same substance, unless they differ significantly in properties with regard to efficacy.”

On this ground, Indian Patent Office (IPO) rejected Novartis’ drug Glivec (imatinib mesylate) patent application, which was ultimately upheld by the Supreme Court in 2013. Nevertheless, a study report of April 30, 2018 emphasized: ‘Though the law with regard to anti-evergreening, upheld and clarified by Indian courts, remains on the books, its application by the IPO has been far from satisfactory.’

The esteemed author of the report, after analyzing about 2,300 drug patents, granted between 2009 and 2016 concluded that evergreening practices may be rampant in India. The report pointed out, ‘the IPO could be operating with an error rate as high as 72 percent for secondary patents, despite provisions to keep them in check.’

Are these IPO’s mistakes, or due to external pressure?

As the paper, published in the January 2016 edition of the Journal of Intellectual Property Rights (JIPR) said,‘The multi-national pharma companies (MNCs) and the US-India Business Council (USIBC) have suggested in their report for elimination of Section 3 (d) so that drug patents can be granted in India for incremental improvement and modification. As per US 301 report, India is listed among countries with inadequate IP regime.’ Keeping all these aspects into consideration, the article expressed some key concerns pertaining to the impact of Section 3 (d) with special emphasis on its interpretation. Does it mean any possibility of wilting under such extraneous and high impact pressure?

A fresh pressure from drug MNC on the DCGI:

Since long drug MNCs have been attempting to delay the entry of even those generics, which are fully compliant with the Indian Patent Law 2005. One such effort was their demand for ‘patent linkage’ with the marketing approval of new generic drugs. However, it could not pass through legal scrutiny – first by the Delhi High Court in the Bayer Cipla case in 2010, and then by the Supreme Court – on the same case. The Court, reportedly, ‘noted the Indian patent system was distinct from the drug regulatory system with no linkage between them and so Bayer can’t prevent DCGI from granting marketing approval to generic versions of patented drugs.’

According to another recent media report of April 04, 2019, in a fresh endeavor ‘to delay launch of low priced generic medicine, multinational drug makers have asked the government to create a registry providing information about all drug applications pending manufacturing and marketing approval. The proposal, which is still pending with the Department of Pharmaceuticals (DoP), if accepted, could involve the generic players into expensive and time-consuming litigations, delaying early market entry of the cheaper generic or biosimilar equivalents.

To date, the health ministry has opposed the proposal, as it will be “unfair to local drug manufacturers to disclose their product strategy” and also has “the potential to substantially increase health care costs for the public.” The government further argued, “such information about product applications filed for approval are not disclosed anywhere in the world.”

India encourages new drug innovation, but not at any cost:

Despite shrill and disparaging comments of MNC lobbyists and the strong vested interests, that India’s Patent Law 2005, doesn’t encourage innovation, many independent international experts do praise the same for the following reasons:

  • Does encourage new drug innovation
  • Does extend product exclusivity for twenty years
  • Strikes a right balance with patients’ health interest
  • Indian judicial system deals with patient infringements and disputes, just as any other developed countries
  • Even 14 years after the enactment of patent laws, just one compulsory license has been granted, which is much less than other countries, including the United States.

What India doesn’t legally allow is, unfettered profit making through ‘evergreening of drug patents’ – at the cost of millions of patients-lives. Nonetheless, powered by deep pockets, the pharma and biotech players are unlikely to cease from this practice, anytime soon. Only patient-awareness, and stringent counter-legal measures can contain this unfair game of drug monopoly practices – in the name of ‘encouraging innovation’.

Conclusion:

The article titled, ‘Over patented, overpriced: How Excessive Pharmaceutical Patenting is Extending Monopolies and Driving up Drug Prices’ revealed:“Top grossing drugs have on average 125 patent applications, which are filed with a strategic intent to extend the commercial monopolies far beyond the intended twenty years of protection.” It also quoted American President Donald Trump as saying, “Our patent system will reward innovation, but it will not be used as a shield to protect unfair monopolies.”

Coming back to ‘patent thicket’ and the same classic case, another report of March 20, 2019 indicated, a new class action lawsuit filed by New York’s largest grocery union has accused AbbVie of violating antitrust and consumer protection laws, which AbbVie has defended by saying that its patent strategy for Humira has protected the investments that are necessary to “advance healthcare.”

Pharma and biotech companies’ maintaining patent monopolies far beyond twenty years has significant consequences on India’s healthcare system. Only patent lawyers and experts can possibly answer whether or not the Indian Patent Law 2005 can effectively deal with the practice of ‘evergreening’ with patent thicket. Intriguingly, taking a cue from recent developments, it seems many pharma and biotech investors too, deem ‘patent thicket’ rather distracting for longer-term undiluted focus on new product development, and sustainable investors’ return.

That apart, the question also comes, whether just as ‘antitrust and consumer protection laws’ in the US, the Competition Law of India will be able to do contain such unfair practices? Otherwise, with MNC lobbyists’ renewed activities in this area, ‘patent thicket’, especially for expensive biologic drugs, will delay market-entry of their cheaper biosimilar versions in India, as well, just as what is happening in the developed nations.

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.

In the Wonderland of Pharma Generics: Some Steps In, Some Steps Over the Line

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To scale-up access to healthcare, especially for the marginalized population of any country, greater access to affordable generic drugs will always remain fundamental, besides improving healthcare infrastructure and its delivery mechanism.

Thus, there should be a robust mechanism across the world to facilitate quick entry of cheaper generic equivalents immediately after patent expiry of the original molecule. Any attempt to step over the line, blocking entry of generics surreptitiously by vested interests must be brought to justice sooner. Such measures assume increasing importance, as without availability of newer generics, unmet medical needs of the most vulnerable section of the society cannot be met effectively by any country.

Newer generics will play a critical role even in the Indian context. Besides many other diseases, India is already known as the diabetic capital of the world with an estimated population of 70 million diabetics by 2020.

Greater access to treatment for such chronic ailments and many other dreaded diseases with increasing trend of prevalence, like cancer, multiple sclerosis, Alzheimer and autoimmune disorders, besides common tropical diseases, would also depend on the availability of cheaper and newer generic medicines.

Global innovators stepping into generics business in emerging markets:

Sniffing the growth opportunities in the generics business in an environment of patent cliff, even many hard-nosed innovator companies have been entering into this business either through local acquisitions or through various collaborative arrangements. Examples of some of these companies are as follows:

  • Novartis entered in generic business with its Sandoz arm
  • Pfizer with collaborative arrangements in India with Aurobindo Pharmaceuticals (India) in March 2009 and with Strides Arcolab in January 2010
  • Daiichi Sankyo acquired Ranbaxy of India
  • GlaxoSmithKline acquired 16 percent stake of Aspen Pharmacare of South Africa,  Laboratorios Phoenix
in in Argentina and signed a development and commercialization license with Dr. Reddy’s Laboratories (DRL)
  • Sanofi acquired Shantha Biotechnics and Universal Medicare of India, Zentiva in Czech Republic, Laboratorios Kendrick in Mexico, Medley in Brazil and Helvepharm in Switzerland
  • Abbott Laboratories acquired the pharmaceutical formulations business of Piramal Healthcare and collaborated with Zydus Cadila

A pro-generic initiative in the west: 

Ireland’s parliament has recently passed a bill on pro-generic initiatives. Under this new law pharmacists will be permitted to substitute branded medicines, which have been designated by the Irish Medicines Board (IMB) as interchangeable.

Currently in Ireland, if a specific brand of medicine is prescribed for a patient, the pharmacist must supply only that brand.

Some steps over the line blocking entry of generics:

Interestingly, to continue marketing high priced innovative drugs even after patent expiry, attempts are still being made to block entry of cheaper generics through equally innovative means by stepping over the line.

On April 15, 2013 ‘The New York Times’ reported several such cases of the recent past in the United States. The report gives details of the players involved in each of these cases.

Prompted by these unfortunate incidents, the Federal Trade Commission (FTC) of the US investigated into the matter involving the American drug companies and charged many of them with ‘anticompetitive behavior’. These practices are no longer new and are being followed by some companies over a long period of time.

One of the latest and elegant, yet a very simple strategy reportedly works as follows:

  • Generic drug makers need samples of patented drugs to generate required regulatory data to obtain marketing approval for launch after the molecules go off patent.
  •  Some innovator companies (named in the report) refuse to sell their patented drugs to generic manufacturers for development of generic equivalents.
  • Traditionally, the generic drug makers purchase their requirements from the concerned wholesalers.
  •  However, because of safety concerns, drugs are now mostly sold with restrictions on who can buy them.
  • This compels the generic manufacturers to ask the innovator companies for samples of the patented products.
  • Unfortunately, mostly they get a negative answer.
  •  In defense, innovator companies explain that they are ensuring any possible improper use of their innovative drugs and also say that no law binds any company to do business with another.

It is alleged that the companies, which most aggressively pursue such measures are those with drugs nearing end of their patent life.

The report indicates that the federal regulators in USA do consider this strategy of creative interpretation of drug safety laws, is illegal.

The news item also indicates that most of these drugs are for serious illnesses like various types of cancers, multiple sclerosis and other rare diseases costing US$ 79,000 to US$ 229,000 a year to patients.

More instances:

Another recent report  highlights that European Union’s anti-trust regulator will fine two European pharmaceutical Company and seven other drug makers for blocking generic drugs against “pay-for-delay” deals. Ranbaxy’s name also features in this report.

The report also states that brand name companies, especially in the western world, have been defending “pay-for-delay” deals to extend patents and avoid costly litigation.

It reports that in a typical case, a generic rival may challenge the patent of a brand-name competitor, which then pays the rival a sum of money to drop its challenge. Interestingly, defenders of the practice call it a legitimate means to resolve patent litigation.

A recent debate:

Another interesting development has come up with the pain killer drug OxyContin of Purdue Pharma, which went off patent in April 2013.

Just before patent expiry, Purdue Pharma reportedly reformulated and pulled out its previous version of OxyContin, without abuse-deterrent measures, from the market giving reasons related to safety and efficacy of the drug.

In the notice to the Federal Register, US-FDA reportedly said, “Compared to original OxyContin, reformulated OxyContin has an increased ability to resist crushing, breaking, and dissolution using a variety of tools and solvents.” The regulator, consequently, barred the generic companies from making copies of the older versions of OxyContin without tamper-resistant qualities.

This development, will not allow drug manufacturers like Teva and Impax to make and launch generic equivalents of older versions of OxyContin.

This report also says that similar request has been filed with US-FDA by Endo Health Solutions Inc. for safety of its old painkiller drug Opana, which could force the generic version of the drug manufactured by Impax’s going out of the market in favor of high priced medicine.

On this development the Generic Pharmaceutical Industry in America has reportedly commented, “Blocking generic drugs could mean leaving behind the millions of patients who stand to benefit from access to lower-cost versions of OxyContin”. Some experts have also expressed apprehension that such a precedent would likely to encourage many others to work for similar safety related changes to extend patent life of a product.

Having said that, it appears to be a complex regulatory issue where the possibility of drug abuse has to be carefully weighed against the benefits of low cost generic entry for greater access to patients.

‘Disparaging’ generic drugs:

Reuters , quoting the French Competition Authority, recently reported from Paris that a global pharmaceutical major has “created a doubt over the quality and the safety of generics, without any proven basis.”

As a result, the report says, the French Competition Authority has fined the drug maker 40.6 million euros (US$52.7 million) for “disparaging” generic competition.

The news report further indicates that this decision followed a complaint of Teva Sante filed in 2010 against communication practices of the branded molecule discouraging the use of its generic versions by the doctors.

The innovator company may appeal against this decision.

European Commission found similar practices:

It is interesting to note that in 2009, the European Commission also reportedly found similar practices, including ‘pay-for-delay deals’ which not only adversely impacted competition, but also delayed entry of cheaper generic drugs into the EU markets.

That said, entry of generic drugs is still not speedy in all therapy areas. In this context, a study titled, “Drug patent expirations and the speed of generic entry,” concluded that the generic industry mostly target chronic drug markets with high turnover products and entry of a generic drug is also greatly influenced by the existing branded substitutes in the marketplace.

Importance of the Indian generic drugs:

According to BCC Research, the global generic drug market is expected to grow at a CAGR of 15 percent over five years registering a turnover of US$ 169 billion in 2014.

In this market, India is now the world’s biggest provider of low priced high quality generic medicines to the developing world. The experts opine in various context, the world must ensure that this vibrant hub of generic drugs does not get adversely impacted at any cost for any vested interest.

According to Pharmexcil pharma exports from India stood at an impressive US$ 14.6 billion during 2012-13 compared to US$ 13.2 billion in 2011-12. Indian Ministry of Commerce had unfolded a ‘Strategy Plan’ to take it to US$ 25 Bn by 2013-14, which currently appears to be a very ambitious objective.

Taken together, India and China now reportedly manufacture over 80 percent of the Active Pharmaceutical Ingredients (APIs) of all drugs used in the United States.

As reported by BMJ from 2003 to 2008, in various programs supported by donor organizations like the Global Fund, generic drugs from India contributed over 80 percent of the medicines used to treat AIDS, including 91 percent of pediatric antiretroviral products and 89 percent of the adult nucleoside and non-nucleoside reverse transcriptase inhibitor markets.

In addition, India is considered to be an extremely valuable source of high quality affordable generic drugs for the treatment of cancer, cardiovascular conditions, infections and other non-infectious chronic diseases and conditions.

Allegations against Indian generic drugs:

In a situation is like these, some aberrations within the Indian generic space like, what has happened currently with Ranbaxy are, at times, made universal and blown out of proportion, probably on behalf the interested players to paint the domestic pharmaceutical industry, in general, black. There is no doubt, however, all such cases of fraud on patients, wherever these take place must be brought to justice.

The issue arises when such instances are grossly generalized. For example, an American Enterprise Institute report titled, “Cheap Indian generic drugs: Not such good value after all?” quoting US-FDA, highlights that “Pharmaceutical companies in developing countries are increasingly falsifying data about the quality of their medicines.”

It further alleges, Indian producers in particular strive to reduce costs by substituting cheaper ingredients or skimping on good manufacturing practices, and often patients and well-informed pharmacists alike will overlook the flaws.

The article laments, “Indian companies and regulators simply deny there is any difference in product quality between their products and those made in the West.”

Indian perspective to the allegation:

In response to such allegations a very recent FICCI –Heal 2012 publication titled “Universal Healthcare: Dream or Reality?” articulated as follows:

“Selected reporting of malpractices in healthcare has painted a poor picture of the sector. However, the instances of misconduct/corruption are miniscule compared to public perception.”

Some important campaigns in favor of generics:

However, a publication from ‘Global Pharmacy Canada’ says,

“Generic medications are just as safe and effective as their brand-name equivalents. All the drugs supplied by the pharmacies we deal with are government approved. The manufacturers they buy from follow strict World Health Organization (WHO) standards for Good Manufacturing Practices (GMP). One or several of the following agencies have approved these manufacturing facilities:

  • Food and Drug Administration (FDA), USA
  • Medicines Control Agency (MCA), UK
  • Therapeutic Goods Administration (TGA), Australia
  • Medicines Control Council (MCC), South Africa
  • National Institute of Pharmacy (NIP), Hungary
  • Pharmaceutical Inspection Convention (PIC), Germany
  • State Institute for the Control of Drugs, Slovak Republic
  • Food and Drug Administration (FDA), India”

Similarly USFDA comments on generic drugs as follows:

“Generic drugs are important options that allow greater access to health care for all Americans. They are copies of brand-name drugs and are the same as those brand name drugs in dosage form, safety, strength, and route of administration, quality, performance characteristics and intended use.”

“Health care professionals and consumers can be assured that FDA approved generic drug products have met the same rigid standards as the innovator drug. All generic drugs approved by FDA have the same high quality, strength, purity and stability as brand-name drugs. And, the generic manufacturing, packaging, and testing sites must pass the same quality standards as those of brand name drugs.”

The growth drivers:

According to a recent study, following are the key growth drivers of the global generic pharmaceutical industry:

  • Governments’ and payers’ need to contain rapidly increasing healthcare expenditures
  • A growing middle-class in emerging markets
  • Longer life expectancy
  • A large number of patent expiries for innovator drugs, many of them are mega blockbusters

All these have contributed to the growth of global generic industry from less than US$ 50 billion in 2004 to over $80 billion by 2011 improving global patient-access to medicines significantly.

The report also says, if a more general definition of off-patent medicines is used to define generics, estimates have placed the size of the industry at closer to $150 billion. In the United States alone, generic sales have more than tripled since 2000 and now exceed $51 billion in 2011.

Encourage speedy entry of generics:

Even the Federal Trade Commission (FTC) in a report titled “Generic Drug Entry Prior to Patent Expiration: An FTC Study,” stated as follows:

“Expenditures on pharmaceutical products continue to grow and often outpace expenditures for other consumer products. Pharmaceutical expenditures concern not only consumers, but government payers, private health plans, and employers as well. Generic drugs offer opportunities for significant cost savings over brand-name drug products.”

In its report FTC recommended that generic drugs should not experience delays when entering the market. The Commission also highlighted that both pharmaceutical innovation and cheaper generic drugs bring enormous benefits to patients.

Conclusion:

It is widely recognized that generic medicines play a key role to improve access to medicines to a very large section of population of the world.

Currently, important policy measures taken by the countries like, United States, United Kingdom, Canada, Holland, Denmark and Germany for increasing use of generic drug have started helping them to achieve this objective. At the same time, such policies are helping them to garner significant savings in their respective healthcare cost.

Out of pocket expenditure towards healthcare being around 80 percent in India, un-interrupted availability of high quality affordable generic medicines will help the patients significantly. This should, no doubt, need to be ably supported by the Government by rolling-out much awaited ‘The Universal Healthcare’ proposal of the High Level Expert Group (HLEG) appointed by the Planning Commission of India, sooner.

To improve demand of generic drugs, the prescribers too need to be influenced by the regulators, as has happened in many countries of the world.

Finally, the requirement to maintain high quality standards for generic medicines should be non-negotiable and continuously be kept under careful vigil of the drug regulators.

The complex dynamics of the global generic drugs market are indeed intriguing. It is indeed a ‘Wonderland’, as it were.

Be that as it may, in this wonderland of pharma generics, as some continue to step in and some others continue to step over the line, it is also important to understand how this industry caters to the healthcare needs of billions of poor and needy.

Respective Governments across the world should facilitate speedy entry of more number of newer generic drugs in the market. Simultaneously, the drug regulators will require bringing to justice to all those forces, which will attempt blocking or delaying entry of generics, causing great harm to a vast majority of patients across the world.

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.

More Glivec Like Deals in China and Mounting Global Challenges: Innovators poised Joining Biosimilar Bandwagon

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Pressure from the emerging markets on pricing of patented products is mounting fast. This time the country involved is China.

Recently, the Health Minister of China who stepped down last month after a seven-year stint in the top health job reportedly commented that western drugmakers will require to give hefty subsidies and forgo significant amount of profit on expensive cancer drugs, if they want access to huge market of China. He further voiced as follows:

“If the cost (of patented drugs) is too high, maybe only a few percent of patients can benefit. If we can arrange an appropriate, acceptable, affordable price, then you can have a huge market.”

‘Glivec deal’ in China: 

In the same report, it was indicated that in China Novartis ultimately agreed to donate three doses of its leukemia drug Glivec for every one sold to the government.

It is expected that many more such deals will take place in China.

The situation to get more challenging in the emerging markets: 

Many experts believe that due to high cost of patented drugs, especially biologics, negotiating hefty discounts with the Governments may be the best alternative for the innovator companies to avoid any possibilities of Compulsory Licensing (CL), like what happened to Bayer’s cancer drug Nexavar in India.

An opportunity in biosimilar drugs: 

Biologic drugs came to the international market slightly more than three decades ago, in 1980s. Growing at a scorching pace, the value turnover of these products exceeded US$ 138 billion in 2010 (IMS Health).

Launch of biologics like, Recombinant Insulin, Human Growth Hormone (HGH), Alteplase, Erythropoietin (EPOs), Granulocyte Colony Stimulating Factors (G-CSFs) and Monoclonal Antibodies (MAbs) kept fueling the market growth further.

Patent expiry of a number of biologic drugs over a period of next five years, especially in areas like, various types of cancer, diabetes and rheumatoid arthritis, besides many others, will help opening a huge window of opportunity for the global biosimilar players, including from India, to reap a rich harvest.

Global innovators joining the bandwagon: 

After a dream-run with high priced patented drugs for a reasonably long time, now stung by the current reality in various developed and emerging markets and factoring-in the width/depth/robustness of their own research pipeline, many global players have started taking a hard look at the emerging opportunities offered by biosimilar drugs.

Moreover, high price of original biologic drugs, cost containment pressure by various Governments, encouragement of generic prescriptions, large number of such drugs going off patent and growing demand of their low cost alternatives across the world, are making biosimilar market more and more lucrative from the global business perspective to all interested players, including from India.

According to Bloomberg Industries (2013), during the next six years biologic drugs with a total annual sales turnover of US$ 47 billion in 2012, will go off patent.

Sniffing opportunities for business growth, as stated above, many hard-nosed large research-based global pharmaceutical companies, currently fighting a challenging battle also in the ground of a tougher ‘patent cliff’, have started venturing into the biosimilar market, that too in a mega scale.

Some of them have already initiated developing biosimilar versions of blockbuster biologics, as reported below:

Originator Product Indication Biosimilar development by:
Roche/Genentech Rituxan Rheumatoid arthritis Boehringer Ingelheim
Roche/Genentech Herceptin, Rituxan Breast Cancer, Rheumatoid arthritis Pfizer
Roche/Genentech Rituxan Non-Hodgkin’s lymphoma Novartis
Johnson & Johnson Remicade Rheumatoid arthritis Hospira

Source: Bloomberg BusinessWeek

Thus, I reckon, continuous quest for development of cost-effective alternatives to high-priced biologic medicines would keep on propelling the growth of biosimilar drugs, across the world.

Glivec maker Novartis fought a court battle to launch the first ‘Biosimilar drug’ in America: 

In mid-2006, US FDA approved its first ‘biosimilar drug’-Omnitrope of Sandoz, the generic arm of the Glivec maker Novartis, following a Court directive. Omnitrope is a copycat version of Pfizer’s human growth hormone Genotropin. Interestingly, Novartis had also taken the US FDA to court for keeping its regulatory approval pending for a while in the absence of a well-defined regulatory pathway for ‘biosimilar drugs’ in the USA at that time.

More interestingly, having received the US-FDA approval, the CEO of Sandoz (Novartis) had then commented as follows:

“The FDA’s approval is a breakthrough in our goal of making high-quality and cost-effective follow-on biotechnology medicines like, Omnitrope available for healthcare providers and patients worldwide”.

Biosimilar market started shaping-up:

Internationally most known companies in the biosimilar drugs space are Teva, Stada, Hospira and Sandoz. Other large research based global innovator pharmaceutical companies, which so far have expressed interest in the field of biosimilar drugs, are Pfizer, Astra Zeneca, Merck and Eli Lilly.

Following are examples of some biosimilar drug related initiatives of the global players as the market started developing:

  • Merck announced its entry into the biosimilar drugs business on February 12, 2009 with its acquisition of Insmed’s portfolio for US$ 130 million. The company also paid US$ 720 million to Hanwha for rights to its copy of Enbrel of Amgen.
  • Samsung of South Korea has set up a biosimilars joint venture with Quintiles to create a contract manufacturer for biotech drugs.
  • Celltrion and LG Life Sciences have expressed global ambitions in biosimilar drugs.
  • Some leading global innovator biotech companies also like, Biogen Idec and Amgen have reportedly been mulling entry into biosimilar market.

According to Reuter (June 22, 2011), Merck, Sandoz, Teva and Pfizer are expected to emerge stronger in the global biosimilar market, in the years ahead. 

Why is still so low penetration of lower cost biosimilar drugs?

Although at present over 150 different biologic medicines are available globally, just around 11 countries have access to low cost biosimilar drugs, India being one of them. Supporters of biosimilar medicines are indeed swelling as time passes by.

It has been widely reported that the cost of treatment with patented biologic drugs can vary from US$ 100,000 to US$ 300,000 a year. A 2010 review on biosimilar drugs published by the Duke University highlights that biosimilar equivalent of the respective biologics would not only reduce the cost of treatment, but would also improve access to such drugs significantly for the patients across the globe. (Source: Chow, S. and Liu, J. 2010, Statistical assessment of biosimilar products, Journal of Biopharmaceutical Statistics 20.1:10-30)

Now with the entry of global pharma majors, the biosimilar market is expected to get further heated up and develop at a much faster pace with artificial barriers created by vested interests, if any, being removed.

Recent removal of regulatory hurdles for the marketing approval of such drugs in the US  will indeed be the key growth driver.

Other growth drivers:

According to a study (2011) conducted by Global Industry Analysts Inc., besides recent establishment of the above regulatory guidelines for biosimilars in the US, the key growth drivers for global biosimilar market, will be as follows:

▪   Patent expiries of blockbuster biologic drugs

▪   Cost containment measures of various governments

▪   Aging population

▪   Supporting legislation in increasing number of countries

The business potential in India:

The size of biotech industry in India is estimated to be around US$ 4 billion by 2015 with a scorching pace of growth driven by both local and global demands (E&Y Report 2011).

The biosimilar drugs market in India is expected to reach US$ 2 billion in 2014 (source: Evalueserve, April 2010).

Recombinant vaccines, erythropoietin, recombinant insulin, monoclonal antibody, interferon alpha, granulocyte cell stimulating factor like products are now being manufactured by a number of domestic biotech companies like, Biocon, Panacea Biotech, Wockhardt, Emcure, Bharat Biotech, Serum Institute of India and Dr. Reddy’s Laboratories (DRL), besides others.

DRL is the largest biosimilar player in India with an impressive product portfolio. Reditux of DRL is the world’s first Biosimilar monoclonal antibody, which is a copy version of Mabthera/ Rituxan of Roche and costs almost 50 percent less than the original brands.

Some of the Biosimilar products of the Indian Companies are as follows:

Indian Company

Biosimilar Product
Dr Reddy’s Lab Grafeel, Reditux, Cresp
Intas Neukine, Neupeg, Intalfa, Epofit
Shantha Biotech/Merieux Alliance Shanferon,Shankinase,Shanpoietin
Reliance Life Sciences ReliPoietin, ReliGrast, ReliFeron, MIRel
Wockhardt Wepox, Wosulin
Biocon Eripro, Biomab, Nufil, Myokinase, Insugen

(Source: Stellarix Consultancy Services)

The cost of development of Biosimilars in India is around US$ 10-20 million, which is expected to go up, as “Biosimilar Guidelines” are now in place for marketing approval of such products in India.

The ultimate objective of all these Indian companies will be to get regulatory approval of their respective biosimilar products in the US and the EU, either on their own or through collaborative initiatives.

Indian players making rapid strides:

As stated above, biosimilar version of Rituxan (Rituximab) of Roche used in the treatment of Non-Hodgkin’s lymphoma has already been developed by DRL in India. It also has developed Filgastrim of Amgen, which enhances production of white blood cell by the body and markets the product as Grafeel in India.

Similarly Ranbaxy has collaborated with Zenotech Laboratories to manufacture G-CSF.

On the other hand Glenmark reportedly is planning to come out with its first biotech product soon from its biological research establishment located in Switzerland.

Indian pharmaceutical major Cipla reportedly has invested around US$ 60 million in 2010 to acquire stakes of MabPharm in India and BioMab in China and is planning to launch a biosimilar drug in the field of oncology by 2013.

Another large pharmaceutical company of India, Lupin signed a deal with a private specialty life science company NeuClone Pty Ltd of Sydney, Australia for their cell-line technology. Lupin reportedly will use this technology for developing biosimilar drugs in the field of oncology, the first one of which, will reportedly be launched in India by 2013.

The global Market:

In 2011 the turnover of Biologic drugs increased to over US$ 175 billion in the total market of US$ 847 billion. The sale of Biosimilar drugs outside USA exceeded US$ 1 billion.

Six biologic drugs featured in the top 10 best selling global brands in 2012 with Humira of AbbVie emerging as the highest-selling biologics during the year.  Roche remained the top company by sales for biologics with anticancer and monoclonal antibodies.

According to IMS Health report, by 2015, sales of biosimilars are expected to reach between US$ 1.9 – 2.6 billion. The report also states that this market has the potential to be the single fastest-growing biologics sector in the next five years.

Cost of biosimilar development in the developed markets:

The process of developing a biosimilar drug is complex and requires significantly more investment, technical capabilities and clinical trial expertise than any small molecule generic drug. As per industry sources, average product developmental cost ranges between US$ 100 and 250 million in the developed markets, which is several times higher than the same associated with development of small molecule generics, ranging around US$ 1to 4 million.

All these factors create a significant market entry barrier for many smaller players with similar intent but less than adequate wherewithal.

Even higher market entry barrier with ‘second generation’ biosimilar drugs:

Emergence of second generation branded biosimilar products such as PEGylated products and PegIntron (peginterferon alpha), Neulasta (pegfilgrastim) and insulin analogs have the potential to reduce the market size for first generation biosimilar drugs creating significant entry barrier.

Negotiating the entry barriers:

As stated above, the barriers to market entry for biosimilar drugs are, in general, are much higher than any small molecule generic drugs. In various markets within EU, many companies face the challenge of higher development costs for biosimilar drugs due to stringent regulatory requirements and greater lead-time for product development.

Navigating through such tough regulatory environment will demand different type of skill sets, especially for the generic companies not only in areas of clinical trials and pharmacovigilance, but also in manufacturing and marketing. Consequently, the investment needed to take biosimilar drugs from clinical trials to launch in the developed markets will indeed be quite significant.

The future potential:

According to an IMS Health study, the emerging markets will drive biosimilar market growth with significantly more number of patients. The report estimates that over a period of time US will emerge as the number one global biosimilars market.

By 2020, emerging markets and the US are expected to register a turnover of US$11 billion and US$ 25 billion representing a share of 4 percent to 10 percent of the total global biologics market, respectively.

The report estimates that overall penetration of biosimilars within the off-patent biological market will reach up to 50 percent by 2020, assuming a price discount in the range of 20 to 30 percent.

Is 12 years exclusivity in the US a significant entry barrier?

In the US, the innovator companies get 12 years exclusivity for their original biologic drugs from the date of respective marketing approvals by the USFDA.

The BPCI Act clearly specifies that applications for ‘biosimilar drugs’ to the USFDA will not be made effective by the regulator before 12 years from the date of approval of the innovators’ products. In addition, if the original product is for pediatric indications, the 12-years exclusivity may get an extension for another six months.

The key point to note here is, if the USFDA starts its review process for the ‘biosimilar drugs’ only after the ’12 year period’, the innovator companies will effectively get, at least, one additional year of exclusivity over and above the ’12 year period’, keeping applicants for ‘biosimilar drugs’ waiting for that longer.

Conclusion:

As stated above, with around 40 percent cost arbitrage and without compromising on the required stringent international regulatory standards, the domestic ‘biosimilar’ players should be able to establish India as one of the most preferred manufacturing destinations to meet the global requirements for such drugs, just as small molecule generic medicines.

With experience in conforming to stringent US FDA manufacturing standards, having largest number of US FDA approved plants outside USA, India has already acquired a clear advantage in manufacturing high technology chemical based pharmaceutical products in the country. Now with significant improvement in conformance to Good Clinical Practices (GCP) and honed skill sets in the field of biologics, Indian biosimilar players are clearly poised to catapult themselves to even a higher growth trajectory, either on their own or with appropriate collaborative arrangements with the international partners.

Thus, the initiatives of joining the biosimilar bandwagon by the hard-nosed research based global players, I reckon, will ultimately get translated into a win-win advantage for India in the rapidly evolving pharmaceutical space of the world.

Besides, like what they had to do in China, working with the Government to put in place a robust and win-win mechanism of ‘Price Negotiation for Patented Drugs’ in India could augur well for the global players of pharmaceutical and biologic drugs. This mechanism may also help putting forth even a stronger argument against any Government initiative to grant CL on the pricing ground for expensive patented drugs in India.

With all these developments, patients will be the ultimate winners having much greater access to both innovative medicines and biosimilar drugs than what they have today, fetching a huge relief to all right thinking population in the country.

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.

With significant competitive edge should Global Biotech Companies consider entry into high potential ‘Biosimilar drugs’ business?

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‘Biosimilar drugs’ – rapid future growth potential:
In most of the developed countries of the world, besides regulatory issues, ‘Biosimilar drugs’are considered a threat to the fast growing global biotech industry. However, many believe that innovative biotech companies can have a head start with all wherewithals at their disposal, compared to generic pharmaceutical companies, to convert this seemingly significant threat into a bright emerging opportunity and derive the best possible mileage out of such changing environment.

Sandoz (Novartis) – first to launch a ‘Biosimilar drug’ in the USA:

In mid 2006, US FDA approved its first ‘Biosimilar drug’; Omnitrope of Sandoz (Novartis) following a court directive in the U.S. Omnitrope is a copycat version of Pfizer’s human growth hormone, Genotropin. Interestingly, Sandoz (Novartis) had taken the U.S FDA to court as the regulatory approval of Omnitrope was kept pending by them, in absence of a defined regulatory pathway for ‘Biosimilar drugs’ in USA.

The CEO of Sandoz had then commented, “The FDA’s approval is a breakthrough in our goal of making high-quality and cost-effective follow-on biotechnology medicines like Omnitrope available for healthcare providers and patients worldwide.” Despite this event, no one at that time expected the U.S FDA to start commencing approval of other ‘Biosimilar drugs’ within the country.

‘Biosimilar drugs’ – emerging global interest:

Thereafter, many developments are fast taking place in the space of ‘Biosimilar drugs’, the world over. To fetch maximum benefits out of this emerging opportunity, India is also taking steps to tighten its regulatory reform process for ‘Biosimilar drugs’ to allay general fear and apprehensions regarding safety of such drugs, in absence of adequate clinical data for the specific protein substance.

Merck’s entry in ‘Biosimilar drugs’ business is through an acquisition:

In the west Merck announced its entry into the ‘Biosimilar drugs’ business on February 12, 2009, while announcing its acquisition of Insmed’s portfolio of ‘Biosimilar drugs’ for U.S$130 million in cash. Rich pipeline of follow-on biologics of Insmed is expected to help Merck to hasten its entry into global ‘Biosimilar drugs’ markets.

Current status of ‘Biosimilar drugs’ in the USA:

The new administration of President Barak Obama has expressed its strong intent to pave the way for regulatory guidelines for ‘Biosimilar drugs’ in the USA. To facilitate this process, the new draft legislation titled, “Promoting Innovation and Access to Life Saving Medicine Act” has already been introduced by the legislators of the country. This legislation, when will come into force would help define guidelines for approval of ‘Biosimilar drugs’ in the USA with just a five year exclusivity period to the innovative products, against a demand of 14 years by the global biotechnology industry.

Lucrative Global market potential for ‘Biosimilar drugs’:

It is estimated that only in the top two largest pharmaceutical markets of the world, USA and EU, sales of ‘Biosimilar drugs’ will record a turnover of U.S$ 16 billion in next two years and around U.S$ 60 billion by year 2010, when about 60 biotech products will go off-patent.

Opportunity for the Indian biotech companies:

Such a lucrative business opportunity in the west will obviously attract many Indian players, like, Biocon, Dr. Reddy’s Labs, Ranbaxy, Wockhardt etc, who have already acquired expertise in the development of ‘Biosimilar drugs’ in India like, erythropoietin, insulin, monoclonal antibodies, interferon-alfa. Domestic Indian biotech players are not only marketing these products in India but also exporting them to other non/less-regulated markets of the world.

Indian Companies are fast preparing to take a sizable share of the global pie of ‘Biosimilar drugs’ market:

Ranbaxy in collaboration with Zenotech Laboratories is engaged in global development of Granulocyte Colony-Stimulating Factor (GCSF) formulations. Wockhards is expected to enter into the Global ‘Biosimilar drugs’ market by 2010. Dr. Reddy’s Laboratories and Biocon are also preparing themselves for global development and marketing of insulin products, GCSF and streptokinase formulations.

Government of India funding for development of ‘Biosimilar drugs’ in India:

It has been reported that the Department of Biotechnology (DBT) of the Government of India has a proposal for funding of U.S$ 68 million through public private partnership (PPP) initiatives, where soft loans at the rate of interest of just 2% will be made available to the Indian biotech companies for development of ‘Biosimilar drugs’. Currently DBT spends around U.S$200 million annually towards biotechnology related initiatives.

Advantage India:

Experience in conforming to stringent U.S FDA manufacturing standards, having largest number of U.S FDA approved plant outside USA; India has acquired a great advantage in manufacturing similar high technology products in India. Significant improvement in conformance to Good Clinical Practices (GCP) standards in India offers additional advantages.

Two available choices for the innovator companies:

With increasing global cost-containment pressures within the healthcare space, emergence of a lucrative global ‘Biosimilar drugs’ market with appropriate defined regulatory pathway in place is inevitable now.

Major global research based companies will now have two clear choices in the fast evolving situation. The first choice is the conventional one of competing with the ‘Biosimilar drugs’ in all important markets of the world. However, the second choice of jumping into the fray of ‘Biosimilar drugs’ business keeping focus on R&D undiluted, appears to be more prudent to me and perhaps will also make a better business sense. Only future will tell us, which of these two business senses will prevail, in the long run for the global biotech companies.

By Tapan 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.

Fixed Dose Combination’ drugs market in India is growing faster – are there enough regulatory checks and balances to prevent market entry of ‘irrational combinations’ to ensure patients’ safety?

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The WHO Model of FDCs:The 2005 ʹProcedure to update and disseminate the WHO Model List of Essential Medicines, Criteria for Selection‘ includes the following statement regarding fixed dose combination products (FDCs):ʺMost essential medicines should be formulated as single compounds. Fixed‐dose combination products are selected only when the combination has a proven advantage over single compounds administered separately in therapeutic effect, safety, and adherence or in delaying the development of drug resistance in malaria, tuberculosis and HIV/ AIDS.ʺ

FDCs need to demonstrate clinical efficacy and safety beyond that for the individual drugs given alone. They would also need to ‘demonstrate bioequivalence of the single combined dose unit with the components administered in the same doses separately but concomitantly’.

‘Adherence’ aspect of WHO Model for FDCs is also important. Problems with ‘adherence’ could lead to inadequate and inconsistent dosing, which in turn could lead to development of drug resistance. FDCs, therefore, are expected to improve compliance reducing the risk of development of drug resistance.

However, one of the major disadvantages with the FDCs is lack of flexibility in adjusting dose of individual ingredients, even if it is required for some patients. Internationally, most popular example is the FDCs of antiretroviral drugs for HIV infected patients like, Combivir, Trzivir, Kaletra etc. Besides, there are FDCs for various other disease areas, like, infections, respiratory and cardiovascular disorders etc.

New FDCs are patent protected in the USA:

In the western world, like the USA, new FDCs may also get patent protection. A company may obtain marketing exclusivity for a new FDC even when individual active ingredients go off patent. However, in India FDCs cannot be patented as per Patent Acts of India 2005.

Market attractiveness for FDCs in India:

In India the market for FDCs is very large and growing much faster, in sharp contrast to the western world. Because of growing market demand, pharmaceutical companies in India tend to market FDCs of all different permutations and combination, at times even crossing the line of a ‘sound medical rationale’. For this reason, we find in the website of ‘Central Drugs Standard Control Organization’ (CDSCO), the banned list of so many FDCs.

Lack of regulatory compliance has created a messy situation with FDCs in India:

Introduction of new FDCs does not only warrant a ‘sound medical rationale’ but also ‘strict conformance to all prescribed regulatory requirements’ for the sake of patents’ safety.

To check unfettered market introduction of potentially harmful FDCs, the Ministry of Health issued a Notification in September 1988, including FDCs in Rule 122 E of the Drugs & Cosmetics Rules (D&CR) 1945. In effect, it removed the powers of the State FDAs to give manufacturing or marketing approval of FDCs. After the notification was issued, all manufacturers/marketers of all FDCs are required to apply only to the Drug Controller General of India (DCGI) under Rule 122E of the D&CR 1945 as a new drug, along with the stipulated fees by way of a Treasury Challan.

Since this entire process entails relatively more regulatory data generation, besides the time and expenses involved, the above Rule was continuously and deliberately broken and manufacturing and marketing approvals were routinely sought and obtained from the State FDAs. Many believe that the State FDAs were equally responsible for knowingly flaunting the Law, as were the pharmaceutical companies.

Patients’ safety – the key concern:

This complicity resulted in the market being flooded with ‘irrational combinations’ which posed a real threat to patients’ safety. The state FDAs were reminded of the Notification by the earlier DCGI. 294 FDCs got caught in this dispute. The important issue of patients’ safety in that process got converted into a legal issue, as many FDC manufacturers chose to go to the court of law to redress their grievances in this matter.

Untangling the messy knot:

As the issue got trapped into various prolonged litigations, the current DCGI took initiative of resolving this contentious issue with the help of an expert committee, involving the manufacturers.

This subcommittee cleared 48 FDCs under ‘similar FDCs already approved’, after discussing the merits and demerits, including pharmacodynamics, pharmacokinetics, side effects, dosage, medical rationale etc. of each ingredient and the combinations. The decision of the Sub Committee was then submitted to the Drug Technical Advisory Board (DTAB).

After formal approval of DTAB, a notification is expected to be issued subsequent to which each of these combinations will be construed to be a new drug and any company wishing to market/manufacture the formulation will require submitting its Application in Form 44 to the DCGI to get approval in Form 45. The process will be completed after the balance 142 FDCs, which need further examination, are individually approved.

This issue sends a clear signal to all concerned that resorting to any form of shortcuts to bypass strict adherence to prescribed regulatory requirements, could seriously jeopardise the patients’ safety. The number of FDCs banned by CDSCO and also ban of those FDCs agreed and accepted by the industry without any challenge during the above process, will vindicate this point.

Solving the current logjam is not enough:

Solving the current logjam on FDCs by the DCGI is a onetime exercise and will perhaps clear a serious mess-up created over a long period of time. It can definitely not be an ongoing process. Neither will it be desirable. There is an absolute and urgent need to follow the WHO Model for FDCs, in India, as indicated above, through appropriate regulatory processes. At the same time, the DCGI should ensure strict compliance of the Notification issued by Ministry of Health on FDCs, in September 1988. Otherwise, unchecked entry of FDCs of all possible permutations and combinations could pose a serious threat to patients’ interest and safety.

Meeting unmet needs of the patients with high quality drugs of scientifically proven high efficacy and safety profile should always define the purpose of existence of the pharmaceutical industry. Any patients’ safety related issue deserves no scope for any compromise.

By Tapan 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.