Biosimilars can be perceived as a category of biological product that have been sanctioned and approved by due regulatory authorities in consonance with the fact that these products are highly alike and akin to a biological product that has been approved on a prior basis. This previously approved biological product is known as the biological reference product.
In distinct contrast to the chemically synthesised generic versions of drugs, biosimilars are sanctioned in accordance with the standards of the pharmaceutical standards, effectiveness, efficacy and safety that are in common parlance applied to all biological medicines.
Biosimilars and Generic Medicines- An underlying dissimilarity
A Biosimilar cannot be perceived as a generic biological medicine, in due accordance with the process of manufacture of a Biosimilar. This means that the variability that occurs naturally and the complex process of manufacturing biological medicines does not facilitate the process of exact replication of molecular microheterogeneity.
Biosimilars are seen to be very similar to the reference product that they are manufactured in comparison to, but have certain minute differences in terms of the purity and potency.
An Anatomization of Biosimilars- Legal and Regulatory Framework in India
India refers to Biosimilars as “similar biologics” and has paved its way into the biosimilar industry with the first launch of “similar biologic” for the disease hepatitis B. India has about 95 biosimilars that are duly approved by the regulatory authority.
In India, the Central Drugs Standard Control Organization is the national authority and the regulatory body that has introduced new guidelines for biosimilars that became effective from the 15th of August, 2016. The previous guidelines that were in existence with regards to biosimilars were the “Draft Guidelines on Similar Biologics: Regulatory Requirements for Marketing Authorization in India” which was effective from 2012.[i]
The 2012 guidelines seek to address the pre and post-marketing regulatory requirements body which is also known as the comparability exercise. These guidelines direct and address the requirements related to the manufacturing process and quality control.[ii]
India follows the pattern of “sequential approach” with regards to biosimilar products. The guidelines that were released in 2016 focus on the aspect of Post Marketing. The major vital difference underlined between the 2012 and 2016 guidelines is the Reference product. If the reference product cannot be marketed in India, it could be licensed and marketed in any ICH Country (International Council for Harmonization).
Apart from the guidelines as enforced by the Central Drugs Standard Control Organization, biosimilars are also synchronised and balanced by the Drugs and Cosmetics Act, 1940, the Drugs and Cosmetics Rules, 1945, Recombinant DNA Safety, 1990 and the Guidelines and Handbook for Institutional Biosafety Committee, 2011.
Market Authorization for the sale of these biosimilars in India is authorised by the Department of Biotechnology via the Review Committee on Genetic Manipulation. There are three stages that act as a precursor to the marketing authorization of these biosimilars- pre-clinical, clinical and post-clinical trials.
- The Pre-Clinical Trial process includes information on the biological reference product, and the corresponding information on the biosimilar. This trial phase also includes the submission of details with regards to the downstream process development like that of fermentation, considerations of molecular biology and other quality based considerations.
- The Clinical Phase consists of information in consonance to the pharmacokinetic, pharmacodynamics, immunogenicity and other efficacy studies.
- The Post- Clinical Trial process includes the studies carried out on the marketing of the biosimilar, drug safety and reporting of any adverse reactions to the drug.
These trial phases and processes are exhibited in the strict and stringent manner in India. In the case of Roche Products (India) Private Limited v. Drugs Controller General of India[iii], Roche had filed a case against two other pharmaceutical companies in lieu of non-adherence to the guidelines applicable and grossly misrepresenting the generic drugs as biosimilars. The court enforced a restraining order on the pharmaceutical companies.
Patent Protection of Biosimilars in India
It is of immense necessity to conform to the regulations set out for the production and trial process to duly attain the right of marketing the biosimilar in India. The process of patenting biosimilars is subject to the criteria that are applicable to patentable items like that of novelty, involving an inventive step and industrial application of the biosimilar. The nature of biosimilars mandates it to be close in efficacy and nature to the biological reference product.
Therefore, these biologic medicines and biosimilars are subject to and governed by Section 3 of the Patents Act. Any biological product that are not naturally occurring and are synthetically developed by human beings could be patented, but if it contains a living organism that occurs in nature then it would fall under Section 3(c)[iv] which rules out the patentability of a scientific discovery or conception of abstract theories.
Section 3(d)[v] of the Patents Act, lays down the following for which patent protection is prohibited-
- The sole discovery of any new forms of a known substance if it does not increase the effectiveness and efficacy of the substance at hand.
- The discovery of any new property of a substance that has already been discovered.
Albeit, a few boundaries for deciphering improved viability for drugs have risen up out of court choices, as far as biopharmaceuticals (especially biosimilar innovations) the subtleties stay obscure.
Trends Observable
Albeit Indian organizations are known for delivering conventional and generic biological drugs, many organizations are presently moving into the worldwide biosimilars market. As per the Associated Chambers of Commerce of India’s 2017 Report, biosimilars sum to $2.2 billion of the $32 billion Indian market – and is required to accomplish a development pace of around 30% build yearly development. A phenomenal illustration of the organization of worldwide drug firms in concurrence with an Indian drug organization can be discovered when Swiss-based Roche went into a concurrence with Emcure for Herceptin, a biosimilar utilized for human epidermal development factor and in instances of positive metastatic bosom and gastric disease. The medication was subsequently promoted by Emcure in India under the brand name ‘Biceltis’. In another model, Mylan, a worldwide monster with an enormous generics portfolio, gone into association with Bangalore-based biopharmaceutical organization, Biocon. Trastuzumab, a biosimilar made by the joint endeavors of both the organizations to lessen febrile neutropenia during chemotherapy, was supported by the US Food and Drug Administration in 2018 and was the first biosimilar created by an Indian organization to be endorsed in the United States.
In spite of the fruitful turn of events and showcasing of some biosimilars by Indian companies, innovative work in this space will face difficulties with regards to the improvement biologics and biosimilars. As opposed to generics – which are comparative instead of indistinguishable from the marked medication – biosimilars are substantially more mind boggling and costly to produce. In furtherance, as opposed to the generics business, biosimilars are likewise dependent upon rigid clinical courses of events obviously characterizing administrative methodology for enormous scope, complete clinical projects setting up the security and viability for treatment of demonstrated problems. The oddity of the biologic and biosimilar improvement measure makes it hard for new organizations to enter this space. Considering an illustration of other drug organizations in India, Dr Reddy’s Laboratories, Cipla, Lupin and Aurobindo are additionally producing biosimilars, some of which are endorsed for promoting. It is normal that more Indian drug organizations will have the capacities and assets to create biosimilar items. As need be, steady and clear administrative and authoritative rules are at present expected by the business.
Conclusion and Way Ahead
In layman’s context, pharmaceutical products and biosimilars are a combination of effort and time from the conception of idea to the process of commercialisation and require rigorous endeavours with regards to research and development. There has been a rampant and a pronounced switch in the pharmaceutical industry of India to that of biopharmaceutical products. It has been seen that regardless of the extra time and exertion needed for advancement and foundation for research work, just as the patching up of consolidations and extensions, it is expanding to address the issues of the biologics.
Author: Haritha Dhinakaran, Symbiosis Law School, Pune
[i] Government of India, Department of Biotechnology, Central Drugs Standard Control Organization. Guidelines on Similar Biologics: Regulatory Requirements for Marketing Authorization in India; 2012.
[ii] Government of India, Department of Biotechnology, Central Drugs Standard Control Organization. Guidelines on Similar Biologics: Regulatory Requirements for Marketing Authorization in India; 2016.
[iii] Roche Products (India) Pvt. Ltd. and Others v. Drugs Controller General of India and Others, 2014 SCC OnLine Del 7682.
[iv]The Patents Act, 1970, Section 3(c)
[v] The Patents Act, 1970, Section 3(d)
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