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Would ‘Regenerative Medicine’ Shape The Future Of Global Healthcare?

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Just the last week, on December 19, 2014, international media broke the news of regulatory approval of the first stem cell treatment by the European Medicines Agency (EMA).

The Agency reportedly has recommended an Orphan Drug – Holoclar of the Italian pharmaceutical company Chiesi Farmaceutici S.p.A for the treatment of moderate-to-severe Limbal Stem Cell Deficiency (LSCD) caused due to physical or chemical burns to the eyes in adults. LSCD can lead to blindness, where Holocar works in around 80 percent of cases.

The EMA decision to approve Holoclar will now be sent to the European Commission for market authorization.

As reported, this new generation treatment takes a small sample of the patients’ healthy cornea, removes the stem cells and grows them until there are sufficient numbers to put back into the eye. The cells themselves then repair the damage.

Experts consider this development as very significant step forward, as stem-cell therapies are now being tried mostly in the laboratory environment and clinical trials.

Treatment with Stem Cells – A new paradigm:

A stem cell is defined as an undifferentiated cell of a multicellular organism that is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.

Stem cells are, therefore, immature cells that can be induced to transform into tissue or organ-specific cells and are classified as per their source, such as Embryonic Stem Cells (ES) from early human embryos, fetal stem cells from aborted fetus; adult stem cells from tissues, skin and bone marrow; cord blood cells from umbilical cord and even fatty tissues.

In human developmental biology, extensive scientific research over many years has led to the discovery of human stem cells.

Regenerative Medicine:

This terminology is generally used for new medical advances in which an understanding of the human genome allows the use of the body’s own mechanism to heal it. This may include new pharmaceuticals and the ability to create new cells that could be implanted into patients to replace diseased or missing tissues.

The science of ‘Regenerative Medicine’ is increasingly being considered as an emerging medical space aimed at the treatment of those diseases that are usually classified as degenerative, incurable and irreversible. As it appears today, this science would unfold a new paradigm, where patients can expect cure for many serious ailments, such as, spinal injuries, heart disease, Parkinson’s, Alzheimer’s disease and even diabetes, besides many others.

Some promising developments:

Besides the recently EMA approved new treatment, as mentioned above, examples of just a few more promising developments in research with the stem cells, are as follows:

- Possible cure for Type 1 diabetes:

According to an international report of October 9, 2014, for the first time, after 23 years of research, Harvard University has been able to manufacture millions of beta cells required for transplantation. It could mean a cure for diabetes and the end of daily insulin injections for patients living with Type 1 diabetes. Around 10 per cent of all diabetes is Type 1, but it is the most common type of childhood diabetes.

The report indicated, the stem cell-derived beta cells are presently undergoing trials in animal models, including non-human primates, where they are still producing insulin after several months.

Another report of April 2014 indicates that for the first time, scientists have successfully replaced the damaged DNA of a type 1 diabetes sufferer with the healthy genetic material of an infant donor. When these cells are injected back into the diabetic patient, it is expected that they will begin to produce insulin on their own.

- Transplant of embryonic human stem cells on patients with macular degeneration partially restored vision:

Another study published in ‘The Lancet’ in October 2014 stated that scientists in the United States have announced that single transplant of stem cells has helped restore the sight of patients suffering from incurable forms of blindness due to Age-related Macular Degeneration (AMD). Currently no effective treatments exist for this eye disorder, which can cause complete blindness due to the loss of light-receiving photoreceptor cells in the retina.

To recreate a type of cell in the retina that supports those photoreceptors, the new treatment uses stem cells derived from embryos that are only a few days old and have the ability to develop into any kind of tissue in the body. However, the transplants have proved controversial because they use stem cells derived from spare human embryos left over from IVF treatment.

- A cure for heart failure could be just a few years away:

Yet another international report of May 01, 2014 states, by injecting human stem cells into the organs of macaque monkeys, scientists have been able to regenerate their damaged hearts by up to 40 per cent in just a few weeks. Thus, it appears now that a cure for heart failure could be just a few years away and would mean that even people who are “bed-bound” with heart failure could be “up and about” again within a few weeks.

As on date, the heart muscle cannot be repaired, making people with severe heart failure necessarily wait for heart transplant. Of course, if the patients are willing and can afford so.

Debate around stem cell research:

Like many other research areas involving biological science, a raging debate has also commenced globally on several sociopolitical, cultural and ethical issues involving the use of stem cells as therapy.

Many clinical research related issues too are now surfacing on the use of human embryos, manipulations and modifications in stem cells research.

Apprehension of misuse, especially through cloning, had prompted many governments, India included, to ban reproductive cloning, keeping therapeutic cloning open for research.

However, arriving at a broader consensus in this area does not seem to be an insurmountable problem, in any case, as things stand today.

Research on stem cells and regenerative medicine in India:

Though it may sound almost unbelievable, India is now considered to be in the forefront of stem cells research and its use in a limited manner.

Indian Government under Indian Council for Medical Research (ICMR) and the Department of Biotechnology (DBT) has already set up a number of stem cell research institutions across the country. These institutions have already commenced valuable research in this area. DBT had granted more than Rs 300 Crore over the previous five years to be used in basic and applied research in stem cell technology.

According to one August 2014 report from ‘Business Insider’, several stem cells research initiatives are ongoing both in public and the private sectors in India.

A few examples, as reported, are as follows:

Public initiatives:

  • The National Centre for Cell Research (NCCR), Pune, has worked on stem cell trans differentiation into pancreatic islets.
  • Research at All India Institute of Medical Science (AIIMS) and Postgraduate Institute of Medical Education & Research (PGIMER), is ongoing on retinal degeneration and stroke.
  • National Institute of Immunohematology (NIIH) has been able to differentiate umbilical cord-derived mesenchymal stem cells into cardiomyocytes or cardiac muscles.
  • The National Centre for Biological Sciences (NCBS) in Bangalore, part of the Tata Institute of Fundamental Research, also works closely with the government on stem cells research.
  • The Government of India had set up The Centre for Stem Cell Research (CSCR) in 2008 in collaboration with Christian Medical College, Vellore, with the intention of using stem cell science for understanding human diseases and development of stem cell-based therapies. Interestingly, it also runs a training program for scientists and students of stem cell research. CSCR will also carry out clinical trials with stem cells produced under current good manufacturing practice (GMP) conditions.

Private initiatives:

  • Reliance Life Sciences obtained permission to use on large-scale stem cells sourced from the patient’s body for therapy.
  • The LV Prasad Eye Institute, Hyderabad, has developed corneal limbal stem cells.
  • Sankara Nethralaya Stem Cell Research Center, Chennai, is working on retinal and corneal stem cell application and immunoregulatory properties of stem cells.
  • Hospitals such as Dr KM Cherian’s research facility in Medville have used stem cells from bone marrow to help regenerate the heart.

Besides, Indian rules and law permit the usage of one’s own banked stem cells. Several storage facilities such as Life Cell, Reliance Life Sciences, Cryobanks International and Stemade for dental stem cell storage have also come up.

Stem cells research guidelines in India:

In India, ICMR-DBT Guidelines for Stem Cell Research are in place. These guidelines have been laid down to ensure that research with human stem cells is conducted in a responsible and ethically sensitive manner and complies with all regulatory requirements pertaining to biomedical research in general and stem cell research in particular.

Since it is a rapidly evolving field of science, the recommendations may change with time.

All types of research and clinical trials in stem cells would require to be registered with and obtain prior permission and approval of the National Apex Committee (NAC) and the Institutional Committee (IC-SCRT) for Stem Cell Research.

It is notably important that the guidelines categorically states that only stem cell research, basic and translational, is permitted but not therapy.

NAC- IC-SCRT permits therapy usage in patients only through approved and fully monitored clinical trials. Stem cells cannot be used as therapy without appropriate regulatory approvals in India.

Conclusion:

Currently, most treatments for non-infectious chronic ailments only delay the disease progression and associated complications. There is virtually no cure for most of these diseases, which include, spinal injuries, heart diseases, Parkinson’s, Alzheimer’s disease or even hypertension, asthma or diabetes.

Regenerative Medicine would not just bring down the cost of healthcare and the disease burden significantly, but would also help increasing the economic productivity of a nation considerably.

Currently, medical research of the highest order in this area is mostly being conducted by various academia of global repute along with the industry. This emerging trend sends a clear signal that ‘Regenerative Medicine’ is now strongly poised to give an altogether new shape to the future of global healthcare, adding unique dimensions.

Consequential paradigm shift in the field of healthcare, I reckon, would herald the dawn of a brand new era, setting in place a whole new commercial ball game, the like of which the world has never witnessed, ever before.

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.

 

Moving Up The Generic Pharma Value Chain

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June 2014 underscores a significant development for the generic drug exporters of India. Much-delayed and highly expected launch of generic Diovan (Valsartan) is now on its way, as Ranbaxy has reportedly received US-FDA approval to launch the first generic version of this blood pressure drug in the United States.

As deliberated in my earlier blog titled “Big Pharma’s Windfall Gain From Indian Pharma’s Loss, Costs American Patients Dear”, delay in launch of the generic equivalent of Diovan caused a windfall gain for Novartis from US$ 1.7 billion US sales of this drug last year, instead of usual declining turnover of an innovative molecule post patent expiry.

The generic version of Diovan (Valsartan) is estimated to contribute around US$ 200 million to Ranbaxy’s sales and US$ 100 million to its profit after tax, during the exclusive sale period. Against these numbers, delay in the launch of generic Diovan has reportedly cost payers and consumers in America around US$ 900 million in the first 18 months.

Since four Ranbaxy manufacturing facilities in India are now facing US-FDA ‘import bans’ due to violations of ‘Good Manufacturing Practices’ of the American regulator, its Ohm Laboratories unit located in New Jersey has been allowed to make generic Valsartan for the US.

Go for gold: 

Hopefully, Ranbaxy would soon get similar approvals from the US drug regulator for its ‘first to launch’ generic versions of Nexium (AstraZeneca) and Valcyte (Roche), as well.

It is worth mentioning that around 90 percent price erosion would take place with intense competition, as soon the period of exclusivity for such ‘first to launch’ generics gets over.

Nonetheless, this is indeed a very interesting development, when the global generic pharmaceutical segment is reportedly showing signals of a tough chase for overtaking the branded pharmaceuticals sector in terms of sales turnover too.

India has a huge a stake in this ball game, as it supplies around 30 to 40 percent of the world’s generic medicines and is well poised to improve its pharma exports from around US$ 15 billion per year to US$ 25 billion by 2016. Since 2012, this objective has remained an integral part of the country’s global initiative to position India as the “pharmacy to the world.”

However, considering the recent hiccups of some Indian pharma majors in meeting with the quality requirements of the US-FDA, though this target appears to be a challenging one for now, the domestic pharma players should continue to make all out efforts to go for the gold by moving up the generic pharmaceutical value chain. In this context, it is worth noting that penetration of the generic drugs in the US is expected to increase from the current 83 percent to 86-87 percent very shortly, as the ‘Obamacare’ takes off with full steam.

Moving up the value chain:

In the largest pharma market of the world – the United States, global generic companies are increasingly facing cutthroat price competition with commensurate price erosion, registering mixed figures of growth. Even in a situation like this, some companies are being immensely benefited from moving up the value chain with differentiated generic product launches that offer relatively high margin, such as, specialty dermatologicals, complex injectibles, other products with differentiated drug delivery systems and above all biosimilars.

As a consequence of which, some Indian generic companies have already started focusing on the development of value added, difficult to manufacture and technology intensive generic product portfolios, in various therapy areas. Just to cite an example, Dr. Reddy’s Laboratories (DRL) is now reportedly set to take its complex generic drug Fondaparinux sodium injection to Canada and two other emerging markets.

Thus, those Indian pharma companies, which would be able to develop a robust product portfolio of complex generics and other differentiated formulations for the global market, would be much better placed in positioning themselves significantly ahead of the rest, both in terms of top and the bottom lines.

One such key opportunity area is the development of a portfolio of biosimilar drugs – the large molecule proteins.

Global interest in biosimilars:

According to the June 2014 report of GlobalData, a leading global research and consulting firm, the biosimilars industry is already highly lucrative. More than 100 deals involving companies focused on the development of biosimilars have been completed over the past 7 years, with a total value in excess of US$10.7 billion.

GlobalData further states, there are a number of factors driving the initiative toward global adoption of biosimilars, from austerity measures and slow economic growth in the US, to an aging population and increasing demand for healthcare in countries, such as Japan.

The costs of biosimilars are expected to be, at least, 20 to 30 percent lower than the branded biologic therapies. This still remains a significant reduction, as many biologics command hundreds of thousands of dollars for 1 year’s treatment.

According to another media report, biosimilars are set to replace around 70 percent of global chemical drugs over the next couple of decades on account of ‘safety parameters and a huge portion of biologic products going off patent’.

Biosimilar would improve patient access:

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 the time passes by.

It has been widely reported that the cost of treatment with innovative and 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 equivalents of novel biologics would improve access to such drugs significantly, for the patients across the globe.

Regulatory hurdles easing off:

In the developed world, European Union (EU) had taken a lead towards this direction by putting a robust system in place, way back in 2003. In the US, along with the recent healthcare reform process of the Obama administration, the US-FDA has already charted the regulatory pathway for biosimilar drugs, though more clarifications are still required.

Not so long ago, the EU had approved Sandoz’s (Novartis) Filgrastim (Neupogen brand of Amgen), which is prescribed for the treatment of Neutropenia. With Filgrastim, Sandoz will now have at least 3 biosimilar products in its portfolio.

Key global players:

At present, the key global players are Sandoz (Novartis), Teva, BioPartners, BioGenerix (Ratiopharm) and Bioceuticals (Stada). With the entry of pharmaceutical majors like, Pfizer, Sanofi, Merck, Boehringer Ingelheim and Eli Lilly, the global biosimilar market is expected to be heated up and grow at a much faster pace than ever before. Removal of regulatory hurdles for the marketing approval of such drugs in the US would be the key growth driver.

Globally, the scenario for biosimilar drugs started warming up when Merck announced that the company expects to have at least 5 biosimilars in the late stage development by 2012.

Most recent global development:

A key global development in the biosimilar space has taken place, just this month, in June 2014, when Eli Lilly has reportedly won the recommendation of European Medicines Agency’s Committee for Medicinal Products for launch of a biosimilar version (Abasria insulin) of Sanofi’s Lantus insulin. This launch would pave the way for the first biosimilar version of Sanofi’s top-selling drug clocking a turnover of US$7.8 billion in 2013. Eli Lilly developed Abasria with Boehringer Ingelheim of Germany.

In May 2014, Lantus would lose patent protection in Europe. However, biosimilar competition of Lantus in the US could get delayed despite its patent expiry in February, as Sanofi reportedly announced its intention of suing Eli Lilly on this score.

Global Market Potential:

According to a 2011 study, conducted by Global Industry Analysts Inc., worldwide market for biosimilar drugs is estimated to reach US$ 4.8 billion by the year 2015, the key growth drivers being as follows:

  • Patent expiries of blockbuster biologic drugs
  • Cost containment measures of various governments
  • Aging population
  • Supporting legislation in increasing number of countries
  • Recent establishment of regulatory pathways for biosimilars in the US

IMS Health indicates that the US will be the cornerstone of the global biosimilars market, powering a sector worth between US$ 11 billion and US$ 25 billion in 2020, representing a 4 percent and 10 percent share, respectively, of the total biologics market.

The overall penetration of biosimilars within the off-patent biological market is estimated to reach up to 50 percent by 2020.

Challenges for India:

Unlike commonly used ‘small molecule’ chemical drugs, ‘large molecule’ biologics are developed from living cells using very complex processes. It is virtually impossible to replicate these protein substances, unlike the ‘small molecule’ drugs. One can at best develop a biologically similar molecule with the application of high degree of biotechnological expertise.

According to IMS Health, the following would be the key areas of challenge:

High development costs:

Developing a biosimilar is not a simple process but one that requires significant investment, technical capability and clinical trial expertise. Average cost estimates range from US$ 20-100 million against much lesser cost of developing traditional generics, which are typically around US$ 1-4 million.

Fledgling regulatory framework:

In most markets apart from Europe, but including the United States, the regulatory framework for biosimilars is generally still very new compared to the well-established approval process for NCEs and small-molecule generics.

Intricate manufacturing issues:

The development of biosimilars involves sophisticated technologies and processes, raising the risk of the investment.

Overcoming ‘Branded Mentality’:

Winning the trust of stakeholders would call for honed skills, adequate resources and overcoming the branded mentality, which is especially high for biologics. Thus, initiatives to allay safety concerns among physicians and patients will be particularly important, supported by sales teams with deeper medical and technical knowledge. This will mean significant investment in sales and marketing too.

Indian business potential:

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, such as, Dr. Reddy’s Laboratories, Lupin, Biocon, Panacea Biotech, Wockhardt, Glenmark, Emcure, Bharat Biotech, Serum Institute, Hetero, Intas and Reliance Life Sciences.

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

Domestic players on the go:

Dr.Reddy’s Laboratories (DRL) in India has already developed Biosimilar version of Rituxan (Rituximab) of Roche used in the treatment of Non-Hodgkin’s lymphoma.  DRL has also developed Filgastrim of Amgen, which enhances production of white blood cell by the body and markets the product as Grafeel in India. DRL has launched the first generic Darbepoetin Alfa in the world for treating nephrology and oncology indications and Peg-grafeel, an affordable form of Pegfilgrastim, which is used to stimulate the bone marrow to fight infection in patients undergoing chemotherapy. The company reportedly sold 1.4 million units of its four biosimilars, which have treated almost 97,000 patients across 12 countries. Besides, in June 2012, DRL and Merck Serono, of Germany, announced a partnership deal to co-develop a portfolio of biosimilar compounds in oncology, primarily focused on monoclonal antibodies (MAbs). The partnership covers co-development, manufacturing and commercialization of the compounds around the globe, with some specific country exceptions.

Another Indian pharmaceutical major Cipla, has reportedly invested Rs 300 Crore in 2010 to acquire stakes of MabPharm in India and BioMab in China and announced in June 19, 2014 collaboration with Hetero Drugs to launch a biosimilar drug with Actroise brand name for the treatment of anemia caused due to chronic kidney disease. Actorise is a biosimilar of ‘Darbepoetin alfa’, which is marketed by US-based Amgen under the brand Aranesp.

In 2011, Lupin reportedly signed a deal with a private specialty life science company NeuClone Pty Ltd of Sydney, Australia for their cell-line technology. Lupin reportedly would use this technology for developing biosimilar drugs in the field of oncology. Again, in April 2014, Lupin entered into a joint venture pact with Japanese company Yoshindo Inc. to form a new entity that will be responsible both for development of biosimilars and obtaining marketing access for products in the Japanese market.

In November 2013, The Drug Controller General of India (DCGI) approved a biosimilar version of Roche’s Herceptin developed jointly by Biocon and Mylan.

In June 2014, Ipca Laboratories and Oncobiologics, Inc. of USA reportedly announced the creation of an alliance for the development, manufacture and commercialization of biosimilar monoclonal antibody products.

Many more such initiatives reportedly are in the offing.

Oncology becoming biosimilar development hot spot:

Many domestic Indian pharmaceutical companies are targeting Oncology disease area for developing biosimilar drugs, which is estimated to be the largest segment globally with a value turnover of around US$ 60 billion growing over 17 percent.

As per recent reports, about 8 million deaths take place all over the world per year due to cancer.

Indian Government support:

In India, the government seems to have recognized that research on biotechnology has a vast commercial potential for products in human health, including biosimilars, diagnostics and immune-biological, among many others.

To give a fillip to the Biotech Industry in India the National Biotechnology Board was set up by the Government under the Ministry of Science and Technology way back in 1982. The Department of Biotechnology (DBT) came into existence in 1986. The DBT currently spends around US$ 300 million annually to develop biotech resources in the country and has been reportedly making reasonably good progress.

The DBT together with the Drug Controller General of India (DCGI) has now prepared and put in place ‘Regulatory Guidelines for Biosimilar Drugs’ in conformance with the international quality and patient safety standards. This is a big step forward for India in the arena of biosimilar drugs.

In June 2014, under the advanced technology scheme of Biotechnology Industry Partnership Program (BIPP), the DBT has reportedly invited fresh proposals from biotech companies for providing support on a cost sharing basis targeted at development of novel and high risk futuristic technologies mainly for viability gap funding and enhancing existing R&D capacities of start-ups and SMEs in key areas of national importance and public good.

However, the stakeholders expect much more from the government in this area, which the new Indian government would hopefully address with a sense of urgency.

Conclusion: 

According to IMS Health, biosimilar market could well be the fastest-growing biologics segment in the next few years, opening up oncology and autoimmune disease areas to this category of drugs for the first time ever. Moreover, a number of top-selling biologic brands would go off patent over the next five years, offering possibilities of reaping rich harvest for the biosimilars players of the country. Critical therapy areas such as cancer, diabetes and rheumatoid arthritis are expected to spearhead the new wave of biosimilars.

While moving up the generic pharma value chain, Indian pharma players desiring to encash on the emerging global biosimilars opportunities would require to do a thorough analysis, well in advance, to understand properly the key success factors, core value propositions, financial upsides and risks attached to investments in this area.

Indian companies would also need to decide whether moving ahead in this space would be through collaborations and alliances or flying solo would be the right answer for them. Thereafter would come the critical market access strategy – one of the toughest mind games in the long-haul pharma marketing warfare.

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.

 

R&D: Is Indian Pharma Moving Up the Value Chain?

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It almost went unnoticed by many, when in the post product patent regime, Ranbaxy launched its first homegrown ‘New Drug’ of India, Synriam, on April 25, 2012, coinciding with the ‘World Malaria Day’. The drug is used in the treatment of plasmodium falciparum malaria affecting adult patients.  However, the company has also announced its plans to extend the benefits of Synriam to children in the malaria endemic zones of Asia and Africa.

The new drug is highly efficacious with a cure rate of over 95 percent offering advantages of “compliance and convenience” too. The full course of treatment is one tablet a day for three days costing less than US$ 2.0 to a patient.

Synriam was developed by Ranbaxy in collaboration with the Department of Science  and Technology of the Government of India. The project received support from the Indian Council of Medical Research (ICMR) and conforms to the recommendations of the World Health Organization (WHO). The R&D cost for this drug was reported to be around US$ 30 million. After its regulatory approval in India, Synriam is now being registered in many other countries of the world.

Close on the heels of the above launch, in June 2013 another pharmaceutical major of India, Zydus Cadilla announced that the company is ready for launch in India its first New Chemical Entity (NCE) for the treatment of diabetic dyslipidemia. The NCE called Lipaglyn has been discovered and developed in India and is getting ready for launch in the global markets too.

The key highlights of Lipaglyn are reportedly as follows:

  • The first Glitazar to be approved in the world.
  • The Drug Controller General of India (DCGI) has already approved the drug for launch in India.
  • Over 80% of all diabetic patients are estimated to be suffering from diabetic dyslipidemia. There are more than 350 million diabetics globally – so the people suffering from diabetic dyslipidemia could be around 300 million.

With 20 discovery research programs under various stages of clinical development, Zydus Cadilla reportedly invests over 7 percent of its turnover in R&D.  At the company’s state-of-the-art research facility, the Zydus Research Centre, over 400 research scientists are currently engaged in NCE research alone.

Prior to this in May 14, 2013, the Government of India’s Department of Biotechnology (DBT) and Indian vaccine company Bharat Biotech jointly announced positive results, having excellent safety and efficacy profile in Phase III clinical trials, of an indigenously developed rotavirus vaccine.

The vaccine name Rotavac is considered to be an important scientific breakthrough against rotavirus infections, the most severe and lethal cause of childhood diarrhea, responsible for approximately 100,000 deaths of small children in India each year.

Bharat Biotech has announced a price of US$ 1.00/dose for Rotavac. When approved by the Drug Controller General of India, Rotavac will be a more affordable alternative to the rotavirus vaccines currently available in the Indian market. 

It is indeed interesting to note, a number of local Indian companies have started investing in pharmaceutical R&D to move up the industry value chain and are making rapid strides in this direction.

Indian Pharma poised to move-up the value-chain:

Over the past decade or so, India has acquired capabilities and honed skills in several important areas of pharma R&D, like for example:

  • Cost effective process development
  • Custom synthesis
  • Physical and chemical characterization of molecules
  • Genomics
  • Bio-pharmaceutics
  • Toxicology studies
  • Execution of phase 2 and phase 3 studies

According to a paper titled, “The R&D Scenario in Indian Pharmaceutical Industry” published by Research and Information System for Developing Countries, over 50 NCEs/NMEs of the Indian Companies are currently at different stages of development, as follows:

Company Compounds Therapy Areas Status
Biocon 7 Oncology, Inflammation, Diabetes Pre-clinical, phase II, III
Wockhardt 2 Anti-infective Phase I, II
Piramal Healthcare 21 Oncology, Inflammation, Diabetes Lead selection, Pre-clinical, Phase I, II
Lupin 6 Migraine, TB, Psoriasis, Diabetes, Rheumatoid Arthritis Pre-clinical, Phase I, II, III
Torrent 1 Diabetic heart failure Phase I
Dr. Reddy’s Lab 6 Metabolic/Cardiovascular disorders, Psoriasis, migraine On going, Phase I, II
Glenmark 8 Metabolic/Cardiovascular /Respiratory/Inflammatory /Skin disorders, Anti-platelet, Adjunct to PCI/Acute Coronary Syndrome, Anti-diarrheal, Neuropathic Pain, Skin Disorders, Multiple Sclerosis, Ongoing, Pre-clinical, Phase I, II, III

R&D collaboration and partnership:

Some of these domestic companies are also entering into licensing agreements with the global players in the R&D space. Some examples are reportedly as follows:

  • Glenmark has inked licensing deals with Sanofi of France and Forest Laboratories of the United States to develop three of its own patented molecules.
  • Domestic drug major Biocon has signed an agreement with Bristol Myers Squibb (BMS) for new drug candidates.
  • Piramal Life Sciences too entered into two risk-reward sharing deals in 2007 with Merck and Eli Lilly, to enrich its research pipeline of drugs.
  • Jubilant Group partnered with Janssen Pharma of Belgium and AstraZeneca of the United Kingdom for pharma R&D in India, last year.

All these are just indicative collaborative R&D initiatives in the Indian pharmaceutical industry towards harnessing immense growth potential of this area for a win-win business outcome.

The critical mass:

An international study estimated that out of 10,000 molecules synthesized, only 20 reach the preclinical stage, 10 the clinical trials stage and ultimately only one gets regulatory approval for marketing. If one takes this estimate into consideration, the research pipeline of the Indian companies would require to have at least 20 molecules at the pre-clinical stage to be able to launch one innovative product in the market.

Though pharmaceutical R&D investments in India are increasing, still these are not good enough. The Annual Report for 2011-12 of the Department of Pharmaceuticals indicates that investments made by the domestic pharmaceutical companies in R&D registered an increase from 1.34 per cent of sales in 1995 to 4.5 percent in 2010. Similarly, the R&D expenditure for the MNCs in India has increased from 0.77 percent of their net sales in 1995 to 4.01 percent in 2010.

Thus, it is quite clear, both the domestic companies and the MNCs are not spending enough on R&D in India. As a result, at the individual company level, India is yet to garner the critical mass in this important area.

No major R&D investments in India by large MNCs:

According to a report, major foreign players with noteworthy commercial operations in India have spent either nothing or very small amount towards pharmaceutical R&D in the country. The report also mentions that Swiss multinational Novartis, which spent $ 9 billion on R&D in 2012 globally, does not do any R&D in India.

Analogue R&D strategy could throw greater challenges:

For adopting the analogue research strategy, by and large, the Indian pharma players appear to run the additional challenge of proving enhanced clinical efficacy over the known substance to pass the acid test of the Section 3(d) of the Patents Act of India.

Public sector R&D:

In addition to the private sector, research laboratories in the public sector under the Council for Scientific and Industrial Research (CSIR) like, Central Drug Research Institute (CDRI), Indian Institute of Chemical Technology (IICT) and National Chemical Laboratory (NCL) have also started contributing to the growth of the Indian pharmaceutical industry.

As McKinsey & company estimated, given adequate thrust, the R&D costs in India could be much lower, only 40 to 60 per cent of the costs incurred in the US. However, in reality R&D investments of the largest global pharma R&D spenders in India are still insignificant, although they have been expressing keenness for Foreign Direct Investments (FDI) mostly in the brownfield pharma sector.

Cost-arbitrage:

Based on available information, global pharma R&D spending is estimated to be over US$ 60 billion. Taking the cost arbitrage of India into account, the global R&D spend at Indian prices comes to around US$ 24 billion. To achieve even 5 percent of this total expenditure, India should have invested by now around US$ 1.2 billion on the pharmaceutical R&D alone. Unfortunately that has not been achieved just yet, as discussed above.

Areas of cost-arbitrage:

A survey done by the Boston Consulting Group (BCG) in 2011 with the senior executives from the American and European pharmaceutical companies, highlights the following areas of perceived R&D cost arbitrage in India:

Areas % Respondents
Low overall cost 73
Access to patient pool 70
Data management/Informatics 55
Infrastructure set up 52
Talent 48
Capabilities in new TA 15

That said, India should realize that the current cost arbitrage of the country is not sustainable on a longer-term basis. Thus, to ‘make hay while the sun shines’ and harness its competitive edge in this part of the world, the country should take proactive steps to attract both domestic as well as Foreign Direct Investments (FDI) in R&D with appropriate policy measures and fiscal incentives.

Simultaneously, aggressive capacity building initiatives in the R&D space, regulatory reforms based on the longer term need of the country and intensive scientific education and training would play critical role to establish India as an attractive global hub in this part of the world to discover and develop newer medicines for all.

Funding:

Accessing the world markets is the greatest opportunity in the entire process of globalization and the funds available abroad could play an important role to boost R&D in India. Inadequacy of funds in the Indian pharmaceutical R&D space is now one of the greatest concerns for the country.

The various ways of funding R&D could be considered as follows:

  • Self-financing Research: This is based on:
  1. “CSIR Model”: Recover research costs through commercialization/ collaboration with industries to fund research projects.
  2. “Dr Reddy’s Lab / Glenmark Model”: Recover research costs by selling lead compounds without taking through to development.
  • Overseas Funding:  By way of joint R&D ventures with overseas collaborators, seeking grants from overseas health foundations, earnings from contract research as also from clinical development and transfer of aborted leads and collaborative projects on ‘Orphan Drugs’.
  • Venture Capital & Equity Market:  This could be both via ‘Private Venture Capital Funds’ and ‘Special Government Institutions’.  If regulations permit, foreign venture funds may also wish to participate in such initiatives. Venture Capital and Equity Financing could emerge as important sources of finance once track record is demonstrated and ‘early wins’ are recorded.
  • Fiscal & Non-Fiscal Support: Should also be valuable in early stages of R&D, for which a variety of schemes are possible as follows:
  1. Customs Duty Concessions: For Imports of specialized equipment, e.g. high throughput screening equipment, equipment for combinatorial chemistry, special analytical tools, specialized pilot plants, etc.
  2. Income tax concessions (weighted tax deductibility): For both in-house and sponsored research programs.
  3. Soft loans: For financing approved R&D projects from the Government financial institutions / banks.
  4. Tax holidays: Deferrals, loans on earnings from R&D.
  5. Government funding: Government grants though available, tend to be small and typically targeted to government institutions or research bodies. There is very little government support for private sector R&D as on date.

All these schemes need to be simple and hassle free and the eligibility criteria must be stringent to prevent any possible misuse.

Patent infrastructure:

Overall Indian patent infrastructure needs to be strengthened, among others, in the following areas:

  • Enhancement of patent literacy both in legal and scientific communities, who must be taught how to read, write and file a probe.
  • Making available appropriate ‘Search Engines’ to Indian scientists to facilitate worldwide patent searches.
  • Creating world class Indian Patent Offices (IPOs) where the examination skills and resources will need considerable enhancement.
  • ‘Advisory Services’ on patents to Indian scientists to help filing patents in other countries could play an important role.

Creating R&D ecosystem:

  • Knowledge and learning need to be upgraded through the universities and specialist centers of learning within India.
  • Science and Technological achievements should be recognized and rewarded through financial grants and future funding should be linked to scientific achievements.
  • Indian scientists working abroad are now inclined to return to India or network with laboratories in India. This trend should be effectively leveraged.

Universities to play a critical role:

Most of Indian raw scientific talents go abroad to pursue higher studies.  International Schools of Science like Stanford or Rutgers should be encouraged to set up schools in India, just like Kellogg’s and Wharton who have set up Business Schools. It has, however, been reported that the Government of India is actively looking into this matter.

‘Open Innovation’ Model:

As the name suggest, ‘Open Innovation’ or the ‘Open Source Drug Discovery (OSDD)’ is an open source code model of discovering a New Chemical Entity (NCE) or a New Molecular Entity (NME). In this model all data generated related to the discovery research will be available in the open for collaborative inputs. In ‘Open Innovation’, the key component is the supportive pathway of its information network, which is driven by three key parameters of open development, open access and open source.

Council of Scientific and Industrial Research (CSIR) of India has adopted OSDD to discover more effective anti-tubercular medicines.

Insignificant R&D investment in Asia-Pacific Region:

Available data indicate that 85 percent of the medicines produced by the global pharmaceutical industry originate from North America, Europe, Japan and some from Latin America and the developed nations hold 97 percent of the total pharmaceutical patents worldwide.

MedTRACK reveals that just 15 percent of all new drug development is taking place in Asia-Pacific region, including China, despite the largest global growth potential of the region.

This situation is not expected to change significantly in the near future for obvious reasons. The head start that the western world and Japan enjoy in this space of the global pharmaceutical industry would continue to benefit those countries for some more time.

Some points to ponder:

  • It is essential to have balanced laws and policies, offering equitable advantage for innovation to all stakeholders, including patients.
  • Trade policy is another important ingredient, any imbalance of which can either reinforce or retard R&D efforts.
  • Empirical evidence across the globe has demonstrated that a well-balanced patent regime would encourage the inflow of technology, stimulate R&D, benefit both the national and the global pharmaceutical sectors and most importantly improve the healthcare system, in the long run.
  • The Government, academia, scientific fraternity and the pharmaceutical Industry need to get engaged in various relevant Public Private Partnership (PPP) arrangements for R&D to ensure wider access to newer and better medicines in the country, providing much needed stimulus to the public health interest of the nation.

Conclusion:

R&D initiatives, though very important for most of the industries, are the lifeblood for the pharmaceutical sector, across the globe, to meet the unmet needs of the patients. Thus, quite rightly, the pharmaceutical Industry is considered to be the ‘lifeline’ for any nation in the battle against diseases of all types.

While the common man expects newer and better medicines at affordable prices, the pharmaceutical industry has to battle with burgeoning R&D costs, high risks and increasingly long period of time to take a drug from the ‘mind to market’, mainly due to stringent regulatory requirements. There is an urgent need to strike a right balance between the two.

In this context, it is indeed a proud moment for India, when with the launch of its home grown new products, Synriam of Ranbaxy and Lipaglyn of Zydus Cadilla or Rotavac Vaccine of Bharat Biotech translate a common man’s dream of affordable new medicines into reality and set examples for others to emulate.

Thus, just within seven years from the beginning of the new product patent regime in India, stories like Synriam, Lipaglyn, Rotavac or the R&D pipeline of over 50 NCEs/NMEs prompt resurfacing the key unavoidable query yet again:

Has Indian pharma started catching-up with the process of new drug discovery, after decades of hibernation, to move up the industry ‘Value Chain’?

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.

Takes ‘Two to Tango’: Encashing Opportunities with Biologic drugs in India

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Despite current ‘Patent Cliff’ ongoing research on biologics is now at the forefront of the Global Pharmaceutical Industry.  The bottom-line impact of a successful new biologic molecule to treat intractable ailments like, cancer, blood disorders, Parkinson’s, Myasthenia Gravis, Multiple Sclerosis, Alzheimer’s diseases, will be huge.

Currently, faster growth of this segment as compared to conventional small molecules is primarily driven by novel technologies and highly targeted approaches, the final outcome of which is being more widely accepted by both physicians and patients.

Lesser generic competition makes it more attractive:

After patent expiry, innovators’ small molecule brands become extremely vulnerable to cut throat generic competition with as much as 90% price erosion.This is mainly because  these small molecules are relatively easy to replicate by many generic manufacturers and the process of getting their regulatory approval is also not as stringent as biosimilar drugs in most of the markets of the world.

On the other hand biologic drugs involve difficult, complex and expensive processes for development. Such resource intensive scientific expertise together with stringent regulatory requirements for obtaining marketing approval, especially in the developed markets of the world like, EU and USA, help creating a significant market entry barrier for many players. That is why even after patent expiry, biologics enjoy significant brand protection from generic competition for quite some time, in many cases.

It is for this reason brands like the following ones are expected to go relatively strong even for some more time, without any significant competition from biosimilar drugs in many of the major markets of the world:

Brand Company Launch date
Rituxan Roche/Biogen idec 1997
Herceptin Roche 1998
Remicade Centocor/J&J 1998
Enbrel Amgen/Pfizer 1998

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, by 2015, sales of biosimilars are expected to reach between US$ 1.9 – 2.6 billion, an increase from US$ 378 million for the year to the first half of 2011.

Attractiveness:

The answer to the key question of why do so many companies want to enter into the biotech space of the business, in summary, could lie in the following:

  • Truly innovative small molecule discovery is becoming more and more challenging and expensive with the low hanging fruits already being plucked.
  • More predictable therapeutic activity of biologics with better safety profile.
  • Higher percentage of biologics have turned into blockbuster drugs in the recent past.
  • Market entry barrier for biosimilar drugs, after patent expiry of the original molecule, is much tougher than small molecule generics.
  • A diverse portfolio of both small and large molecules will reduce future business risks.

A 2012 report by PwC titled ‘From Vision to Decision: Pharma 2020’ states that “the next few years may look bleak for pharma, but we’re convinced that the following decade will bring a golden era of renewed productivity and prosperity.”

The document also points out that the global pharmaceutical industry is now focusing its R&D initiatives on biologics for the treatment of cancer and rare diseases. Nearly 30 percent of the 7,891 molecules currently in clinical testing cover cancer and autoimmune conditions.

Another emerging opportunity:

As stated above, unlike commonly used ‘small molecule’ drugs, ‘large molecule’ biologics are developed from living cells using very complex processes.

It is virtually impossible to replicate these protein substances, unlike the ‘small molecule’ drugs. One can at best develop a biologically similar molecule with the application of high degree of biotechnological expertise. These drugs are known as ‘Biosimilar Drugs’ and usually cost much less than the original ones.

Biosimilar drugs market is currently fast evolving across the world with varying degree of pace and stages of developments. The U.S currently holds the leadership status in the production of biologics, with around 45 percent of the total share. India’s share, now being at 7 percent is continuously increasing.

Biosimilar Monoclonal Antibodies (mAbs) in the Pipeline:

Company

Location

Biosimilar mAbs

Development Status
BioXpress

Switzerland

16

Preclinical
Gene Techno Science

Japan

6

Preclinical
Zydus Cadilla

India

5

Preclinical
PlantForm

Canada

3

Preclinical
BioCad

Russia

3

Preclinical
Celltrion

South Korea

2

Phase 3
LG Life Sciences

South Korea

2

Preclinical
Gedeon Richter

Hungary

2

Preclinical
Cerbios-Pharma

Switzerland

1

Preclinical
Hanwha Chemical

South Korea

1

Preclinical
PharmaPraxis

Brazil

1

Preclinical
Probiomed

Mexico

1

Phase 3
Samsung BioLogics

South Korea

1

Preclinical
Novartis

Switzerland

1

Phase 2
Teva

Israel

1

Phase 2
Zenotech

India

1

Phase 3
Spectrum

US

1

Preclinical
Biocon/Mylan

India/US

1

Preclinical

(Source: PharmaShare; as of September 10, 2011 from Citeline’s Pipeline database)

Future business potential with cost arbitrage of India:

In 2013, products like, Avonex of Biogen Idec, Humalog of Eli Lilly, Rebif of Merck KgaA, Nupugen of Amgen will go off-patent, paving the way of entry for lower priced biosimilar drugs. The sum total of revenue from all such drugs comes to over U.S$ 15 billion.

The report from the ‘Business Wire’ highlights that, ‘the manufacture and development of a biosimilar molecule requires an investment of about US$ 10 to 20 million in India, as compared to US$ 50 to 100 million in developed countries’, vindicates the emergence of another lucrative business opportunity for India for such drugs with significant cost arbitrage.

Government support in India:

In India, the government seems to have recognized that research on biotechnology has a vast commercial potential for products in human health, including biosimilars, diagnostics and immunobiologicals, among many others.

To give a fillip to the Biotech Industry in India the National Biotechnology Board was set up by the Government under the Ministry of Science and Technology way back in 1982. The Department of Biotechnology (DBT) came into existence in 1986. The DBT currently spends around US$ 300 million annually to develop biotech resources in the country and has been reportedly making reasonably good progress.

The DBT together with the Drug Controller General of India (DCGI) has now prepared ‘Regulatory Guidelines for Biosimilar Drugs’ in conformance to international quality and patient safety standards.

Currently, a number of both financial and non-financial incentives have been announced by the Central and the State Governments to encourage growth of the biotech industry in India, which include tax incentives, exemption from VAT and other fees, grants for biotech start-ups, financial assistance with patents, subsidies on investment from land to utilities and infrastructural support with the development of ten biotech parks through ‘Biotechnology Parks Society of India’.

A commendable DBT initiative:

Towards this direction, the Department of Biotechnology (DBT) of the Government of India has taken a commendable step to encourage the small and medium scale business outfits by setting-up ‘The Small Business Innovation Research Initiative (SBIRI)’. This scheme has been launched to boost ‘Public-Private-Partnership (PPP)’ projects in the country.

SBIRI supports ‘the high-risk pre-proof-of-concept research’ and ‘late stage development’ in small and medium size companies to get them involved in the development of biologics.

Some examples:

Examples of some among many of the PPP initiatives in the healthcare space under SBIRI are as follows:

No.

Company Name with Collaborator

Title of the Project Supported
1. IcubedG Ideas Private Limited, New Delhi Risk based Process Design for large scale Manufacturing of male injectable contraceptive
(Phase I)
2. Incozen Therapeutics Pvt. Ltd., Hyderabad Discovery and Development of Novel, Selective and Potent Dihydroorotate Dehydrogenase Inhibitors in Inflammatory Bowel diseases.
(Phase I)
3. Mediclone Biotech Private Limited, Chennai Commercial Production of Monoclonal Antibodies as an import substitute with special reference to Red Blood Cell Phenotyping (Phase II)
4. Orchid Chemicals & Pharmaceuticals Ltd., Chennai in collaboration with AU-KBC Research Center, Chennai Development and validation of a cell-tissue co-culture model for aiding liver specific studies and drug discovery applications. (Phase I)
5. Reliance Life Sciences Pvt. Ltd., Navi Mumbai An open label, multicenter, prospective clinical study to evaluate the safety and efficacy of tissue engineered R-STE-001 in patients with symptomatic cartilage defect of femoral condyle (Phase II)
6. USV Limited, Mumbai Development of a Vaccine capable for eliciting immunological memory for the prevention of Typhoid (Phase II)
7. Virchow Biotech Private Limited, Hyderabad Development of commercialization of a recombinant uricase for the prevention and treatment of tumor lysis syndrome associated with leukemia, lymphoma & solid tumor malignancies (Phase II)
8. Virchow Biotech Private Limited, Hyderabad Indigenous development of a recombinant Fuzeon for the treatment of AIDS (Phase II)
9. Zenotech Laboratories Limited., Hyderabad Development of humanized monoclonal antibodies against human epidermal growth factor receptor (Phase I)
10. Advanced Neuro-Science Allies Pvt. Ltd, Bangalore in collaboration with Vittal Mallya Scientific Research Foundation, Bangalore Pre-clinical studies of Human mesenchymal stem cells (MSCs) isolated and characterized from different sources in autoimmune disease, namely rheumatoid arthritis (RA) and type 1 diabetes (TIDM)(Phase I)
11. Avesthagen Ltd., Bangalore Hepatocyte-like cells generated from human embryonic stem cells (hESC) for hepatotoxicity screening of xenobiotics in the drug discovery process(Phase I)
12. Avesthagen Limited, Bangalore Scale-up and evaluation of high-value biosimilar product (Etanercept) aimed at providing cost-effective healthcare solutions to the emerging markets(Phase II)
13. Bharat Serum and Vaccines Limited, Mumbai Expression of recombinant proteins for development of synthetic pulmonary surfactant for Respiratory Distress Syndrome(Phase I)
14. Cadila Pharmaceuticals Ltd., Ahmedabad Development of Mycobacterium was an adjuvant for anti – rabies vaccine(Phase I)

Besides, Indian pharmaceutical majors like Dr. Reddy’s Laboratories (DRL), Reliance Life Science, Shantha Biotech, Ranbaxy, Biocon, Wockhardt and Glenmark have made good investments in biotech drugs manufacturing facilities keeping an eye on the emerging opportunities with Biosimilar drugs in the developed markets of the world.

Funding remains a critical issue:

That said, many industry experts do feel that R&D funding for the Biotech sector in the country is grossly inadequate. Currently, there are not many ‘Venture Capital’ funds for this sector and ‘Angel Investments’ almost being non-existent, Indian biotech companies are, by and large, dependent on Government funding.

Making India a global hub for biosimilar manufacturing:

However, with around 40 percent cost arbitrage, adequate government support and without compromising on the required stringent international regulatory standards, the domestic ‘biologic’ players should be able to establish India as one of the most preferred manufacturing destinations to meet the global requirements for particularly ‘biosimilar drugs’.

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 India. Significant improvement in conformance to Good Clinical Practices (GCP) standards will offer additional advantages.

Conclusion:

With increasing support from the government and fueled by creative, scientific and technological inputs from various experts and entrepreneurs in the country, India has the potential to emerge as one of Asia’s best powerhouses in the field of biosimilars drugs by the end of this decade. It will take ‘two to tango’.

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.

 

 

 

 

Patients’ Safety, regulatory approval of Biosimilar Drugs in India and WHO Biosimilar guidelines

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Biopharmaceutical drugs are broadly defined as:

”Those medicines produced using a living system or genetically modified organism. These drugs are different from traditional chemical medicines in many ways. Size of the molecule is one of the most obvious distinctions: the molecules of a biopharmaceutical medicine are much larger, have far more complex spatial structures and are much more diverse (“heterogeneous”) than the chemical molecules which make up classical drugs.”

The Biosimilar drugs:

Biosimilar drugs are follow-on versions of original biopharmaceutical medicines. Biosimilar medicines are intended to have the same mechanism of action for the same diseases as the original biopharmaceutical drugs.

The term “bio generic” will be misleading for off patent biopharmaceutical products, as no two biopharmaceutical products could possibly be exactly identical. This is mainly because of the following reason:

“Whereas generics of chemistry based medicines are identical in the molecular structure and therefore copies of the original product, based on a strict definition of “sameness”, a corresponding definition cannot be established for biosimilar medicines because of their nature and the complexity of their manufacturing process. Here post-translational modifications are dependent of the host cell and the process.”

Thus the common terminologies used to describe such products when the original products go off-patent are follow-on biologics and biosimilars.

Manufacturing Conditions of biosimilars ultimately define the final product:

Unlike chemical drugs, the manufacturing conditions and the process followed to produce biopharmaceutical drugs largely define the final product and its quality. Any alteration to the manufacturing process may result in a completely different product. Additionally proteins are relatively unstable. Thus additional measures in their storage, formulation and delivery are very critical.

Key concerns with the existing regulatory approval process for Biosimilar drugs:

• Small changes in the manufacturing process of biosimilar drugs could significantly affect the safety and efficacy of the molecule.

• Due to the very nature of a biologic it is virtually impossible for two different manufacturers to manufacture two identical biopharmaceutical drugs. Identical host expression systems, processes and equivalent technologies need to be demonstrated in extensive comparability trials. Thus, as stated above, a ‘bio generic’ cannot exist.

• As against the situation applicable for generics of chemical molecules which can be replicated, biosimilar drugs cannot be replicated. At the most such biopharmaceuticals can be at the most “similar” but not “identical” to the original reference products. To ensure desired efficacy and safety of biosimilar products, these products should only be approved after charting out a formal and well validated regulatory pathway for the biosimilar drugs in India.

• Currently biosimilar drugs are given marketing approval by the regulator without such guidelines for large molecule biological and following just the bioequivalence model as specified in the Schedule Y of the Drugs and Cosmetics Act (D&CA) of India for small molecule chemical entities only, as the current Drugs and cosmetics Acts of India, very unfortunately, do not differentiate between large and small molecular drugs. This could, in turn, endanger patients’ safety with serious medical consequences.

Although, Central Drugs Standard Control Organization (CDSCO) and the Drugs Controller General of India (DCGI) are responsible for approvals of the new drug applications, health being a state subject, respective state regulatory authorities are responsible for granting manufacturing license to the pharmaceutical manufacturers.

Pharmaceutical manufacturers setting up facilities in the states, where regulatory oversight and incidences of weaker enforcement are common, will be able to market their products, including biosimilars, across the country. It is alleged that there are hardly any regulatory control over the mistakes or offences committed by the State Drug authorities who permit manufacture of drugs even unapproved by the DCGI. The existing issue of mushrooming of various irrational Fixed Dose Combinations (FDC) products in India will vindicate this point.

The Government’s response to this public health concern:

Express Pharma in its June 30, 2009 edition reported Dr M K Bhan, Secretary, Government of India, DBT, saying, “The first question is do we have written guidelines available to people? Currently, we have a large committee of about 30 people in the Review Committee on Genetic Manipulation (RCGM) which frequently discusses the current FDA and EMEA guidelines and makes sure that it is updated as per the guidelines in case by case approvals.”

He acknowledged, to make sure that the product is identical or original is harder for biological than for chemical entities and said, “So the next question is, what is the degree of difficulty you create to be sure that some of the products in the in vitro laboratories and the strength of the biomolecule, are to be characterized in details, and the other side is how expensive should the chemical evaluation be? At this moment, RCGM is seeing the issues and is in touch with both the FDA and the EMEA, and they are taking case by case decisions while trying to standardize the minimum information that is required to show how companies have characterized their products.”

“If we ask a big established company on this issue they will tell us to be strict, whereas a smaller company will suggest otherwise. What we are trying to do is being very scientific and come to a conclusion,” reported Express Pharma quoting Dr. Bhan.

The current practice:

Much water has flown down the bridge since the above interview was published. Nothing much has changed on ground regarding this critical issue, thus far. The industry sources allege that even today regulatory approval of biosimilar drugs (large molecules) are granted based on Phase III clinical trials, as specified in the schedule Y of the Drugs and Cosmetics Acts for the small molecules (chemicals) and that too conducted mostly on just 40 to 45 patients. At times the number of patients studied is even lesser. Immunogenicity study, which is so important for biosimilar drugs is, more often than not, overlooked. This could seriously compromise patients’ safety with such category of drugs.

Conclusion:

It is, indeed, quite surprising that in our country there is still no separate transparent and published guidelines for regulatory approval of Biosimilar drugs even when the World Health Organization (WHO) has come out with the same and India had actively participated in that exercise.
The question, therefore, comes to my mind whether the Biosimilar drugs manufactured in India would conform to international quality and safety standards, like in the U.K or what has been recently announced in the USA? If not, who will address the safety concerns of the patients administering these life saving medicines?

Such a concern gets vindicated by widely reported serious quality problems, detected by the drugs regulatory authorities, at some large and well known Biosimilar drug’s manufacturing units in India, in not too distant past and also from the condition of some vaccine manufacturing units in our country. The recent example of WHO cancelling the pre-qualification of ‘Shan 5’ (Shanta Biotech) vaccines for quality related problems, perhaps may help opening the eyes of our regulators, on the related patients’ safety issues arising out of regulatory laxity.

This issue assumes even greater importance considering the very recent development of the Department of Biotechnology (DBT) unfolding an interesting scheme to encourage development of biosimialr dugs in India by offering financial support to the domestic pharmaceutical and biopharmaceutical industry.

The proposed new regulatory pathway for the marketing approval of Biosimilar drugs in India will immensely help paving the way for the Biopharmaceuticals drugs manufacturers in India to adequately prepare themselves to grab a significant share of the fast emerging Biosimilar drugs markets, particularly, in Europe and the USA, in the years to come.

The Ministry of Health and the Department of Biotechnology of the Government of India should, therefore, urgently and jointly consider amending the Drugs & Cosmetics Acts of India accordingly and establish robust regulatory guidelines for marketing approval of biosimilar drugs in the country, acknowledging the widespread concern for patients’ safety.

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.