Tag Archives: Safety

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.

Biosimilar Drugs -A raging scientific debate with mounting global commercial interest

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On December 11, 2008, Reuters reported that two days after Merck & Co. announced a major push into generic versions of biotechnology medicines, Eli Lilly & Co. signaled similar aspirations. This report raised many eyebrows in the global pharmaceutical industry, in the midst of a raging scientific debate on this issue. Be that as it may, many felt that this announcement ushered in the beginning of a new era. An era of intense future competition with Biosimilar drugs in the world market with immense commercial interest.Globally, the scenario for generic versions of biotechnology medicines, which are called Biosimilars, Biogenerics or follow-on Biologics, started heating up when Merck announced that the company expects to have atleast 5 follow-on biologics in the late stage development by 2012. The announcement of both Merck and Eli Lilly surprised many, as the largest pharmaceutical market of the world – the U.S.A is yet to approve the regulatory pathway for generic biologic medicines. In the developed world, European Union (EU) has taken a lead towards this direction by already having a system in place for regulatory approval of Biosimilar drugs in 2003.What then prompts the research based global pharmaceutical companies like Merck and Eli Lilly to step into the arena of Biosimilar medicines? Is it gradual drying up research pipeline together with skyrocketing cost of global R&D initiatives?

The future business potential of Biosimilar medicines:

Currently, over 150 different biologic medicines are available in the Global Pharmaceutical market. However, the low cost Biosimilar drugs are available in just around 11 countries of the world, India being one of them. Supporters of Biosimilar medicines are indeed swelling as time passes by. At present, the key global players are Sandoz (Novartis), Teva, BioPartners, BioGenerix (Ratiopharm) and Bioceuticals (Stada). This market is expected to develop slowly because of regulatory hurdles in the major countries of the world.

Very recently, the EU has approved Sandoz’s (Novartis) Filgrastim (Neupogen brand of Amgen), which is prescribed for the treatment of Neutropenia. With Filgrastim, Sandoz will now have 3 Biosimilar products in its portfolio.

Raging debate on Biosimilar Drugs still continues:

The debate is centered on the argument that like small chemical molecules is it possible to replicate large biological molecule of the innovator? It is widely believed that a protein cannot be absolutely replicated. How could possibly then Biosimilar drugs be considered equivalent to the original product by a regulator and marketing approval be granted to them without full scale clinical trials ignoring safety concerns of the patients? In favor of this argument some refer to the problem of red cell aplasia that affected many patients administering Johnson & Johnson’s Exprex (Epoetin) after only a minor change made in its manufacturing procedure.

Hurdles to cross for future Market entry of Biosimilar Drugs:

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

Even otherwise, the barriers to market entry of Biosimilar drugs are much higher than any small molecule generic drug. In the markets within EU, many companies face the challenge of higher development costs for biosimilar drugs because of stringent regulatory requirements and greater lead time for product development. Navigating through such a tough regulatory environment will demand a different type of skill sets from the generic companies not only in areas of clinical trials and pharmacovigilance, but also in areas of 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.

Current Scenario in the U.S:

Recently in the U.S.A, the new, widely reported, biotechnology policy of President Barak Obama has become one of the most closely watched healthcare policy initiatives of the country. It is expected that such a policy will help facilitate regulatory approval process of Biosimilar drugs in the USA by end 2009. This new policy initiative could have a major impact on many biotech companies who will face new generic competition, rather quickly. On the other hand, it will prove to be a boon to the new entrants in this market like, Merck and Eli Lilly, besides the existing ones.

Global Market Potential of Biosimilar Drugs:

The biosimilar drug market in the world is estimated to be around U.S. $ 16 billion by 2011. Currently, off-patent biologic blockbusters including Erythropoietin offer an excellent commercial opportunity in this category of drugs. By 2013, about 10 branded biologics with a total turnover of around U.S. $ 15 billion will go off-patent.

Biosimilar Drugs in India:

Sales of biosimilar drugs in India are estimated to be around U.S. $ 4 billion by 2011.

Biosimilar drugs fall under high growth segment within Indian pharmaceutical Industry. Recombinant vaccines, erythropoietin, recombinant insulin, monoclonal antibody, interferon alpha, granulocyte cell stimulating factor like products are manufactured by a number of domestic biotech companies like Biocon, Panacea Biotech, Wockhardt, Emcure, Shantha Biotech, Bharat Biotech, Serum Institute of India, Dr. Reddy’s, Ranbaxy, etc. The ultimate objective of all these Indian companies, I am sure, will be to get regulatory approval of such products in the EU and then in the U.S. when the time comes.

It is worth mentioning here that to give a fillip to the Biotech Industry in India, the National Biotechnology Board was set up by the Government of India under the Ministry of Science and Technology in 1982 and the Department of Biotechnology (DBT) came into existence in 1986. The DBT now spends around US$ 200 million annually to develop biotech resources in the country and have been making reasonably good progress. The DBT is reported to have undertaken an initiative to prepare regulatory guidelines for Biosimilar Drugs, which is expected to conform to international quality and patients’ safety requirements.

The points to ponder with the Biosimilar Drugs in India:

It is, indeed, quite surprising that in India there is still no separate transparent and published guidelines for regulatory approval of Biosimilar drugs, although the Drug Controller General of India (DCGI) seems to have a different view in this matter. The Drugs and Cosmetics Acts of India have no separate provisions either, for Biosimilar Drugs. In a situation like this, we find that many Biosimilar Drugs are still getting regulatory approval in India.

Currently India supplies 30% by volume of the global requirements of generic drugs both in regulated and non-regulated markets. In the regulated markets like North America and EU, for small molecule generic products, Indian manufacturers conform to the global safety and efficacy standards by getting these products approved by the most stringent regulators of the world like, U.S. FDA, MHRA (Medicines and Healthcare products Regulatory Agency) etc. The very fact that none of the Biosimilar drugs developed in India could get approval in the EU as yet, may well suggest that the stringent regulatory requirements for both efficacy and patients’ safety followed in the EU for Biosimilar drugs, could not be met by the Indian manufacturers, as yet. The question, therefore, comes to my mind whether the Biosimilar drugs manufactured in India conform to international quality and safety standards? If not, who will address the safety concerns of the patients who are or will be administering these medicines?

Such a concern gets vindicated by widely reported serious quality problems, detected by the drug regulatory authorities, at some large and well known Biosimilar drugs manufacturing units in India and also from the condition of some vaccine manufacturing units in our country.

India needs to manufacture the world class Biosimilar drugs conforming to the highest efficacy and patients’ safety standards, just the way Indian pharmaceutical manufacturers have demonstrated with ‘made in India’ generic drugs, the world over. The Indian drug regulatory authority should now take some important initiative with the publication of world class Biosimilar drugs regulatory approval guidelines, may be following the similar process as what we see in the EU.

Currently, experts from India are participating towards preparation of ‘WHO Guidelines’ for Biosimilar Drugs. The progress made towards this direction is yet to be ascertained. Simultaneously, the DBT is reported to have under taken an independent initiative to prepare similar guidelines, the progress of which is also yet to be known.

Before other developed markets open up for Biosimilar drugs, if India can align itself with its own world class regulatory standards for the same, yet another significant export opportunity could be created for the country, competing with the best performers of the world in this category.

Meanwhile, it will only be good to know that like many other initiatives, India has taken one more important initiative to address this important issue, for the sake of humanity. As the existing process of granting regulatory approval for Biosimilar drugs continues in India, the lurking fear towards patients’ safety with such drugs will remain unabated with a large majority of experts in this field.

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.