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Beyond ‘The Magic Moment’ of New Drug Marketing Approval

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“Uncontrolled clinical trials are causing havoc to human life. There are so many legal and ethical issues involved with clinical trials and the government has not done anything so far.”

This is exactly what the Supreme Court of India observed while responding to a Public Interest Litigation (PIL) on the subject in January 2013.

While Indian regulators with the active intervention of the Supreme Court are trying to grapple with, besides others, the basic ‘human rights’ aspect of the Clinical Trial (CT), many countries in different parts of the world are moving much ahead at a brisker pace. They have started thinking and putting in place more patient centric newer drug approval systems and also, in tandem, hastening the process of bringing new drugs to the market.

Current general scenario in CT:

Currently, after pre-clinical studies and before applying for regulatory approval, a new drug has to be tested on volunteers in randomized studies to prove its efficacy and safety on patients. Relatively short duration of new drug trials can hardly establish long-term safety and efficacy, which are now arrived at through extrapolation of data collected during CT period.

It is worth noting, the overall situation changes dramatically after launch of these products, as their usage expands from a relatively smaller number of CT volunteers to millions of real-world patients.

In a situation like this, unrealistic expectation of patients’ safety in perpetuity based primarily on extrapolation of very limited CT data is being increasingly questioned today.

That is why, on going post-marketing surveillance, which is also known as a Phase IV CT, is considered as a much more effective process to gauge relative superiority of the drug against the existing ones in terms of both efficacy and safety on a longer term.

That said, today one reads and hears umpteen number of accusations for almost lack of any meaningful response on the part of the pharmaceutical companies, in general, towards revelations of post-marketing surveillance data. This could, in turn, expose the patients to various types of risks, including wasteful healthcare expenditure.

The ‘Magic Moment’ in the present regulatory process:

A recent paper highlights a single “Magic Moment” between pre and post-licensing processes in the current drug-approval model in many countries. In this system, the use of a drug is tightly controlled in a narrowly defined pre-licensing population. Thus, CTs are also conducted on such pre-defined and relatively homogeneous volunteers, who are generally free from complicating conditions.

However, after ‘The Magic Moment’ of marketing approval, a large number of heterogeneous patient population, with many of them on multiple therapy, also use these new products in uncontrolled settings. Situations as these had led to post-marketing major drug withdrawals like, Vioxx and Avandia due to patients’ safety.

These grave concerns have led to a strategic shift in the drug regulatory approval scenario throwing open new ideas in the drug approval process.

Adaptive Licensing:

To find the right answer to this vexing issue the drug regulators in many countries are  reportedly seriously contemplating to imbibe a process that will continuously help analyzing information through ongoing post-marketing surveillance data. Continuous medical data analysis like this will enable the regulators to modify their earlier decisions on marketing approval and also medical reimbursements related to pricing reasons.

This new process is called ‘Adaptive Licensing (AL)’, which is expected to benefit the overall healthcare system, by not allowing medical reimbursement of treatments with those drugs, which will provide negligible benefit over existing low cost therapies.

Difference between current mechanism and AL:

According to a ‘Health Canada’ paper titled, “The Path to Adaptive Drug Regulation”, the difference between the two is as follows:

Current system:

As explained above, post-licensing i.e. after ‘The Magic Moment’ of regulatory approval, treatment population grows rapidly and treatment experiences do not contribute to evidence generation.

Adaptive Licensing:

After initial license, treated patients grow more slowly due to regulatory restrictions. Patient experience is captured to contribute to real-world information. The marketing license is also modified accordingly from time to time.

Most desirable for many drugs:

Experts in this field opine that AL will help bringing in alignment of all required processes so important for a new drug seen from patients’ perspective like, R&D, regulatory approval and market access with the active involvement of all stakeholders like, the pharmaceutical companies, the drug regulator, payors/insurance companies and also the researchers.

In the AL system, a transparent drug development process will provide enough data on risk-benefit profile of the concerned drug to satisfy the drug regulator for its quick marketing authorization on pre-determined types of patients.

Such approval will follow real-life monitoring of efficacy and safety for modification of the drug license accordingly, wherever and whenever required.

Thus, AL is expected to strike a right balance balance between timely access to new drugs for the patients and the need to evaluate real time evolving information on safety and efficacy leading to a well-informed patient centric decisions by the drug regulators.

A continuous regulatory evaluation and decision-making process:

AL intends to evaluate a drug through its entire life span.  It has been reported that during this long period, clinical and other data will “Continue to be generated on the product through various modalities, including active surveillance and additional studies after initial and full licensing. The artificial dichotomy of pre vs. post licensing stages (‘The Magic Moment’) will be replaced by graded, more tightly managed, but more timely and potentially more cost-effective market entry and market stability.”

Not necessary for all drugs in the near term:

It is worth noting that AL system may not perhaps be required for all pharmaceutical or biologic products and will not totally replace the current system of drug licensing process, at least in the near term.

AL process may immediately be followed only for those products with a favorable risk-benefit drug profile as demonstrated in the initial data and there is a robust reason for early market entry of this drug to meet unmet needs, simultaneously with ongoing studies.

The ‘Magic Moment’ freezes in India…in perpetuity:

As per the Drugs and Cosmetics Act of India, after obtaining drug marketing approval from the regulators, concerned pharmaceutical companies are required to follow the pharmacovigilance system in the country to own the responsibility and liability of the drugs as enunciated in the Schedule Y of the Act. Unfortunately, this is hardly being followed in India, ignoring patients’ safety blatantly.

With the plea that most products launched in India are already being marketed in many developed markets of the world, the concerned companies prefer to depend on clinical experiences in those markets. This attitude totally bypasses the regulatory requirement to follow a robust pharmacovigilance system in India. Indian drug regulators also do not seem to be much concerned about this important patients’ safety related requirements, very surprisingly not even for biosimilar drugs.

However, the current ground realities are quite different. As we witness today, there does not seem to be much difference in time between international and India launch of innovative products. Thus, the argument of gaining medium to long-term experience on safety and efficacy from international data related to these drugs, does not seem to hold any water at all.

On the contrary, some drugs withdrawn from the international markets on safety grounds are still available in India, despite ire and severe indictment even from the Indian Parliamentary Standing Committee.

In a situation like this, AL process of Marketing approval for selected newer and innovative drugs may be considered by the Indian Drug Regulators, just not to be more patient centric, but also to help evaluating  pricing decisions of innovative drugs failing to demonstrate significantly better treatment outcomes as compared to the existing ones.

A recent example of AL:

One of the latest drugs, which reportedly will undergo such regulatory scrutiny of USFDA is Tacfidera (dimethyl fumarate) used for the treatment of multiple sclerosis, approved in April 2013 and costing US$ 54,900 per patient per year.  Interestingly, Tacfidera, before the drug can find itself on a formulary, will need to demonstrate its effectiveness in the real world.

The report indicates, “the first six months after a drug launch are always about educating payers about its benefits, and while most large payers are likely to make a decision to reimburse the drug in the next twelve months, data collection will continue and changes in policies might be made at a later date.”

Thus, in the years ahead, whether a new drug will become a blockbuster or not will very largely be decided by the ongoing real world data. If the promise of a drug diminishes at any point of time through clinical data, it will certainly going to have consequential financial and other adverse impacts.

Another interesting recent development:

Under new pharmacovigilance legislation in Europe, the European Medicines Agency has reportedly announced the list of over 100 drugs that soon will bear the “black triangle” logo. This initiative is directed to encourage both the doctors and patients to report side effects to enable close monitoring of drug safety.

Criteria to include drugs under additional monitoring are:

  • Medicines authorized after January 1, 2011 that contain a new active substance.
  • Biologics for which there is limited post-marketing experience.
  • Medicines with a conditional approval or approved under exceptional circumstances.
  • Medicines for which the marketing-authorization holder is required to carry out a post-authorization safety study (PASS).
  • Other medicines can also be placed under additional monitoring, based on a recommendation from the European Medicines Agency’s Pharmacovigilance Risk Assessment Committee (PRAC).

Conclusion:

Global regulatory experts do believe that in the concept of AL, there are still some loose knots to be tightened expeditiously to make it a fully implementable common drug marketing authorization process.  Appropriate pilot projects need to be undertaken in this area to establish beyond any doubt that AL will be decisively more preferable to the current regulatory process.

As and when AL will become the preferred drug-licensing pathway across the world, it is expected to offer greater real benefits of new drug development to the patients for their optimal use at an affordable price.

That said, some other experts do opine as follows:

“No matter how fast the authorization process operates, the merits of innovation will not be felt until they reach patients. And the barrier between authorization and patient access remains, in most of Europe, the issue of reimbursement.”

While all these are fast developing in the global CT scenario, in the jangle of Clinical Trials‘ in India, ‘Adaptive Licensing’ has still remained a critical missing ingredient even to encourage a wider debate.

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.

The traditional ‘Business Models’ of R&D focused Global Pharmaceutical majors are undergoing a metamorphosis

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Mounting pressure on the P&L account, as the products go off patent:

Patented new products are the prime growth driver of the research based pharmaceutical companies of the world. Since last few years, because of various reasons, the number of launch of such products has been greatly reduced. To add fuel to the fire, 2010-12 will witness patent expiries of many blockbuster drugs, depleting the growth potential of the most of the research based pharmaceutical companies.

The existing model of growth engine needs a relook:

The blockbuster model of growth engine of the innovator companies effectively relies on a limited number of ‘winning horses’ to achieve the business goal and meeting the Wall Street expectations. In 2007, depleting pipeline of the blockbuster drugs hit a new low in the developed markets of the world. It is estimated that around U.S. $ 140 billion of annual turnover from blockbuster drugs will get almost shaves off due to patent expiry by the year 2016. IMS reports that in 2010 more than U.S. $ 30 billion will be adversely impacted because of patent expiry. Another set of blockbuster drugs with similar value turnover will go off patent the year after i.e. 2011. It will not be out of context to mention, that last year around U.S. $ 27 billion worth of patented drugs had gone off-patent.

Decline in R&D productivity is not related to investments:

The decline in R&D productivity has not been due to lack of investments. It has been reported that between 1993-2004, R&D expenditure by the pharmaceutical industry rose from U.S.$ 16 billion to around U.S.$ 40 billion. However, during the same period the number of applications for New Chemical Entities (NCEs) filed annually to the U.S. FDA grew by just 7%.

Total global expenditure for pharmaceutical R&D was reported to have reached U.S. $ 70 billion in 2007 and is expected to be around U.S. 90 billion in year 2010. 75% of this expenditure was incurred by the U.S alone. It is interesting to note that only 22 NMEs received marketing approval by the US FDA during this period against 53 in 1996, when R&D expenditure was almost less than half of what was incurred in 2007 towards R&D.

Be that as it may, the pressure on the P&L (Profit and Loss) accounts of these companies is indeed mounting.

The silver linings:

However, there seem to be following two silver linings in the present scenario, as reported by IMS:

1. Number of Phase I and Phase II drugs in the pipeline is increasing.

2. R&D applications for clinical trials in the U.S. rose by 11.6% to a record high of 662 last year.

Significant growth of generic pharmaceuticals is expected in near future, far surpassing the patented products growth:

Patent expiry of so many blockbusters during this period will fuel the growth of generic pharmaceutical business, especially in the large developed markets of the world. The market exclusivity for 180 days being given to the first applicant with a paragraph 4 certification in the U.S. is, indeed, a very strong incentive, especially for the generic companies of India.

Healthcare reform of March/April 2010 in the USA is expected to give a further boost to this trend.

Pressure on traditional Marketing strategies:
The marketing expenditure for pharmaceutical of the global pharmaceutical companies as reported by Scrip is U.S. $ 57.5 billion. However, an industry association reported that research based pharmaceutical companies in the U.S. spent $ 29.4 billion on R&D and $ 27.7 billion on promotional activities.

New Product Differentiation could be a big issue:

Products in R&D pipeline could face problems of ‘differentiation’ in terms of value offering to the patients, once they are launched. This issue is expected to surface especially with products in the oncology disease area. IMS Health reports that about 55 oncology projects are now in Phase III and 8 in the pre-registration stage. Thus about 50 new oncology products are expected to hit the market by end 2010. Many experts anticipate that there may not be significant brand differentiation between the brands of the ‘same basket’, leading to cut-throat competition and further pressure on expenditure towards marketing of brands.

The changing business strategy of global pharmaceutical companies during this trying time:

In this trying time, the global pharmaceutical companies are resorting to an interesting strategy, combing both old and the new ones. I shall touch upon the following seven strategies:

1. Mergers and Acquisitions (M&A):
Mega M&A strategies are still being actively followed by some large Pharmaceutical companies mainly to enrich R&D pipeline and achieve both revenue and cost synergies.
However, some of these large global companies have started realizing that ‘powerhouses’ created through past mega mergers and acquisitions have now become too large to manage effectively for various reasons. Mismatch between two different organization cultures also throws a great challenge to obtain desired output, many a times. Moreover, the merged R&D set up could become too large to manage, impacting the R&D productivity very adversely.

2. Extension of the Product Life Cycle and Effective Product Life Cycle Management:
Many global pharmaceutical companies are now engaged in ‘product life cycle management’ of their existing products by extending the ‘product life cycle’, effectively. In that process they are trying to maximize the brand value of these products in the international markets. For example, AstraZeneca has developed once daily treatment with their anti-psychotic drug Seroquel XR. This extended-release formulation of the same drug will help patients avoid 5 to 7-day titration required with the immediate-release version.
Towards similar initiative, Pfizer has also recently set up a dedicated “Established Product Business Unit” within worldwide pharmaceutical operations, to hasten business growth in the international markets.

3. OTC Switch:
Prescription to ‘Over the Counter’ (OTC) switch is another business strategy that many innovator companies are now imbibing, at a much larger scale.

This strategy is helping many global pharmaceutical companies, especially in the Europe and the U.S to expand the indication of the drugs and thereby widening the patients base.

Recent prescription to OTC switches will include products like, Losec (AstraZeneca), Xenical (Roche), Zocor (Merck), etc.

4. Emerging of Preventive Therapy, like Vaccines:
Many large global companies, like GSK, Sanofi Aventis and Merck are getting attracted by the emerging opportunities in the fast developing vaccines market. This trend has been triggered primarily by heightened awareness and greater focus on preventive medicines almost all over the world. It is estimated that in 2011, the vaccines market will grow from U.S.$ 13 billion to U.S.$ 30 billion registering a growth of 18% each year during this period. PricewaterhouseCoopers (PwC) estimates vaccine market to be U.S. $ 42 billion by year 2015 based on data of 245 pure vaccines and 11 combination vaccines currently under clinical development. It is interesting to note that 90 of these are therapeutic vaccines for cancer.

5. Entry into highly contentious market of Biosimilar drugs:
The Generic Pharmaceutical Association (GPhA) has estimated that it is possible to save US$ 10 billion – 108 billion over a period of 10 years with biosimilars in the top 12 categories of biological drugs. Some of these biological are already off patent and for others the patents will expire shortly.
Only a few biosimilar drugs have reached the global markets as on date because of their regulatory restrictions in most of the developed markets of the world. Even those biosimilar drugs, which have since been launched in Europe like, human growth hormone (HGH) Somatropin and Epoetin alfa for anemia, are yet to make a mark in the market place.

IMS Health reports that Omnitrope (somatropin) of Sandoz, the first biosimilar drug launched in the developed world, has registered less than 1% of the U.S. $ 831 million HGH market in Europe. Moreover, the launch of 3 more biosimilar versions of epoetin alfa in 2007, made almost negligible impact in the market. Such a low acceptance of biosimilars in the western world, so far, could well be due to lingering safety concern of the medical profession with such types of drugs.

Currently, Japan and USA are working on formal guidelines for biosimilar drugs, whereas Health Canada has already issued draft regulatory guidelines for their approval in Canada.

In April 2010, Reliance Life Science has already announced its intent to enter into the Biosimilar market of the EU in not too distant future.

6. Entry into Generic Markets:

Some large global pharmaceutical companies have already made a firm commitment to the generics market. Novartis paved the way for other innovator companies to follow this uncharted frontier, as a global business strategy. Last year the generic business of Novartis (under Sandoz) recorded 19% of their overall net sales, with turnover from generics registering U.S$ 7.2 billion growing at 20%.

Keen business interest of Sanofi Aventis to acquire Zentiva, the generic pharmaceutical company of Czechoslovakia; it’s very recent acquisition of the generic pharmaceutical company Laboratorios Kendrick of Mexico and Shantha Biotech in India and acquisition of Ranbaxy Laboratories of India by Daiichi Sankyo, will vindicate this point.

Pfizer has also maintained its generics presence with Greenstone in the U.S. and is using the company to launch generic versions of its own off patent products such as Diflucan (fluconazole) and Neurontin (gabapentin).

7. Collaboration with the Indian Companies:

Another emerging trend is the collaboration of MNCs with the Indian pharmaceutical companies to market generics in the global market, like, Pfizer with Aurobindo and Claris, GSK with Dr. Reddy’s Laboratories (DRL), Astra Zeneca with Torrent. I guess that similar trend will continue, in future, as well.

Conclusion:
Another ‘new pharmaceutical sales and marketing model’ is gradually emerging in the global markets. This model emphasizes partnership by bundling medicines with services. The key success factor, in this model, will depend on which company will offer better value with an integrated mix of medicines with services. PwC indicates that in this ‘new pharmaceutical marketing model’, besides required medicines, the expertise of a company to effectively deliver some key services like, patient monitoring and disease management could well be the cutting edge for future success.

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.