Biosimilars

Health Canada definitions of generics and biosimilars

Attention has been brought to the fact that there is confusion surrounding terms used in the global field of generics and biosimilars. Some of this confusion has been attributed to authorities in various regions of the world defining terms differently and other instances are due to a misunderstanding of the actual nature, characteristics, and method of research and manufacture of these biological products.

Interchangeability (switching and alternating) of biosimilars

The Biologics Price Competition and Innovation (BPCI) Act of 2009 established an abbreviated Biologic License Application (aBLA) pathway for the approval of biosimilars in the US. This act also established the principles of interchangeability (along with switching and alternating) with the reference product. However, the concept of biosimilarity and interchangeability for biosimilars is very different from that of bioequivalence and drug interchangeability for generics [1].

Indian Transgene sells biosimilar to German TSS Export

India-based biotech company Transgene Biotek Limited (Transgene) announced on 24 November 2011 the sale of technology for biosimilar recombinant human erythropoietin (rh-EPO) to TSS Export GmbH FZE, part of the Germany-based TSS group, for US$5 million (Indian Rupees 260 million).

National Psoriasis Foundation declares biosimilar stance

One of the leading psoriasis patient associations in the US, the National Psoriasis Foundation, has publically declared its stance on biosimilars. In an open letter to FDA, the Foundation issued a statement on the implementation of the Biologics Price Competition and Innovation (BPCI) Act of 2009 [1].

Quantitative evaluation of bioequivalence

Generics
For approval of small molecule generics, FDA requires that evidence of average bioequivalence in drug absorption in terms of pharmacokinetic (PK) parameters be provided through the conduct of bioequivalence studies. This may be done using the area under the blood and/or plasma concentration-time curve and peak concentration (Cmax) [1].

US cancer researcher calls for additional biosimilar trials

One of the leading cancer researchers in the US has called for biosimilars manufacturers to undertake additional research. In an interview with The ASCO Post, Professor Mark Pegram, MD, Professor of Medicine and Associate Director for Clinical Research, Sylvester Comprehensive Cancer Center at the University of Miami Health System, Florida, USA, said, ‘Oncologists will be concerned about the safety of biosimilars. They will want to ensure that the chemistry, manufacturing, and composition are on par with the labelled product.’

Fujifilm and Kyowa Hakko Kirin in biosimilars joint venture

Japanese Fujifilm Corporation announced on 16 November 2011 that it is once again making an agreement in the biosimilars field, this time with biotech firm Kyowa Hakko Kirin, Tokyo, Japan.

Economic evaluation of biosimilars

Biological drugs represent a fast-growing segment of the pharmaceutical market. They make up 32% of drugs in the development pipeline and 7.5% of marketed medicines and account for around 10% of pharmaceutical expenditure [1].

Acino grabs Cephalon’s Middle East and African business

Switzerland-based generics company Acino Pharma announced on 14 October 2011 that it had agreed to buy biopharmaceutical company Cephalon ’s combined Middle East and African business in a transaction worth approximately Euros 80 million.

New Amgen Enbrel patent could block biosimilars until 2028

Amgen announced on 22 November 2011 that it had been granted a new US patent on its blockbuster drug Enbrel (etanercept).

Speed to market critical in biosimilar development

For companies looking to develop biosimilars speed to market is critical, but this must not be done by sacrificing product quality, according to a report from Contract Research Organisation (CRO) Quintiles. The most successful biosimilar companies will be those who collapse their clinical, commercial, and regulatory thinking into a streamlined cohesive function in order to expedite commercialisation and optimise market access.

FDA definitions of generics and biosimilars

Confusion surrounding terms used in the global field of generics and biosimilars is a recognised problem.

The source of some of this confusion is due to authorities in various regions of the world defining terms differently and other instances are due to a misunderstanding of the actual nature, characteristics, and method of research and manufacture of these biological products.

US biosimilars: many barriers to overcome

EMA has been successful in devising a system for authorising the marketing of biosimilar products and 14 biosimilars are currently on the market in the major countries of the EU [1]. Generally, biosimilars are priced about 30% less than the originator product. This seems to be sufficient to gain significant (~ 30%) market share in a year or two though it keeps biosimilars very expensive. This is in dramatic contrast to the situation in America. In 2010 the ‘biosimilars statute’ (BLA) eventually came into force as the result of the Patient Protection and Affordable Care Act. The proposed rule involves two particularly onerous requirements that the EU process avoids.

The first is the question of degree of similarity.

Natco snaps up biosimilars: signing deal with Mabxience

Indian generic drugmaker Natco Pharma announced that it had entered into an exclusive agreement with Mabxience, the biosimilar division of Swiss firm Chemo Sa Lugano, on 19 September 2011.

The controversies surrounding biosimilars

It is well known that the introduction of similar biological medicinal products, or biosimilars, has caused not a little controversy in the medical world. The aim of healthcare providers/payers, either healthcare authorities or insurance companies, is to reduce the healthcare budget has risen in recent years through the introduction of expensive companion diagnostics, devices, and drugs. At the present moment this can only be achieved in two general ways: either the availability of therapies must be restricted from the patients who would benefit from them, or otherwise the costs of the procedures and drugs must be reduced to within affordable limits so that the majority of patients can benefit from them.

Battle rages over anti-thrombotic medicine

Sandoz/Momenta are ahead again in the fight for the lucrative anticoagulants market in the US. According to IMS Health data enoxaparin sodium injection is the best-selling hospital medicine in the US, and has been described as the ‘gold standard’ for anti-thrombotic treatments. Lovenox, sanofi-aventis’ reference product, recorded US sales of US$2.7 billion in 2009 and has been used to treat an estimated 200 million patients worldwide since it was launched.

Merck acquires follow-on Copaxone NBCD: determined to lead in MS

Germany-based Merck already markets its own multiple sclerosis (MS) drug Rebif (interferon beta-1a) but suffered a major blow during 2011 when regulators on both sides of the Atlantic rejected its oral MS treatment Movectro (cladribine). Merck has since abandoned the project.

Can biosimilar manufacturers learn from generic substitution issues

The substitution of generic prescription medicines for branded medicines is practiced in most Westernised countries, mainly because of its clear economic benefits. Patient experiences of generic substitution are mixed however, with many patients left confused or suspicious [1]. Given that a number of second-generation biosimilar compounds are expected to be approved within the next few years, and that biosimilar manufacturing costs are much higher than those of a simple generic, it is crucial for biosimilar manufacturers to avoid the uncertainty and mistrust that often accompanies generic substitution. Several recommendations have been made to help ensure that substitution pathways are streamlined and successful [1] but can any of these recommendations be applied to biosimilars?

US biosimilars: a report on FDA progress

This article reviews the steps being taken by FDA to implement the Biologics Price Competition and Innovation (BPCI) Act of 2009, enshrined in law in 2010 as the ‘biosimilars statute’.

US$1 billion for cancer R & D

GE Healthcare, the health business of General Electric, provides advanced cancer diagnostic and molecular imaging capabilities, as well as technologies for the manufacture of biopharmaceuticals and for cancer research. Its presence at the European Multidisciplinary Cancer Congress 2011 in Stockholm indicated its commitment to strengthening cancer diagnosis and care. Similarly at the 53rd Annual American Society for Radiation Oncology Meeting in Miami Beach, Florida, USA, it was showcasing a number of new tools designed specifically for the needs of radiation oncologists.

Development of biosimilars is not an easy matter

By 2020 biological products with sales of around US$23 billion in the EU and US$29 billion in the US will be exposed to biosimilar competition [1]. As more and more biologicals lose their patent protection, it is no wonder that Big Pharma, the biotechnology industry and generics manufacturers, as well as regulatory agencies, are becoming increasingly interested in biosimilars [2].

Brand-name statins costing healthcare system US$6.7 billion

Researchers at Mount Sinai School of Medicine, New York, USA, found that physicians prescribing unnecessary treatments or diagnostic tests, spanning a broad range of clinical conditions, costs the US healthcare system an extra US$6.7 billion annually. The findings, published in Archives of Internal Medicine, attributed prescribing of brand-name statins instead of generic statins as accounting for most of the excess cost [1].

Rituximab biosimilar successfully produced in plants

iBio, a leader in the plant-made pharmaceutical field, announced on 5 October 2011 that it had successfully expanded the use of its technology to biosimilar monoclonal antibodies (mAbs) by producing rituximab in non-transgenic green plants.

Biosimilar user fees proposal under review

Proposals over biosimilar user fees appear to have been ratified by stakeholders and a proposal is now under review by the US Department of Health and Human Services.

EMA definitions of generics and biosimilars

Confusion surrounding terms used in the global field of generics and biosimilars is a recognised problem. The members of the Biosimilar Medicinal Products Working Party at EMA have recently expressed the need to propose a more precise definition for biosimilars due to problems arising from imprecise usage of the term in the scientific literature and elsewhere [1].

Biocon announces Malaysia manufacturing plant

Biocon, a global biopharmaceutical company with high-tech manufacturing and research arms, announced in September 2011 ‘project commencement for its first high-end biopharmaceutical manufacturing and R & D facility in Bio-XCell, Malaysia’ [1]. Malaysia, epitomised by the Bio-XCell biotechnology park, is considered ‘an ideal location to manufacture generics’ by industry analysts Frost & Sullivan.

Cheap biosimilars to come from India and China

On 19-20 September 2011, the United Nations (UN) held a High-Level Meeting to develop a global strategy to fight non-communicable diseases, ‘principally cardiovascular diseases, cancers, chronic respiratory diseases and diabetes.’ It is only the second global health issue that the UN General Assembly has deemed urgent enough to call a meeting to discuss. Such diseases cause approximately two-thirds of all deaths.

Biotech pipeline and biosimilars

There are more than 200 new biotechnology products in the pipeline (phase II to registered), all of which could be future targets for biosimilars. However, around 60% of these products concern mechanisms of action that are already available, see Figure 1 [1].

A snapshot of interesting new approvals by FDA

New approvals by FDA look set reach record levels in 2011. Some noteworthy drugs already approved in 2011 are discussed below.

Biosimilars or biobetters–what does the future hold

Biosuperiors or biobetters are improvements to originator biological molecules, whereas biosimilars are structural imitations of the originator. But how will the pharma industry choose to pursue this lucrative market and benefit from patent expirations on biologicals? Will biobetters or biosimilars be the winners?

Biobetter of trastuzumab on the horizon

TrasGEX, which is currently under development by German biopharma company Glycotope, is shaping up to be an improved version (or biobetter) of Roche’s blockbuster cancer drug Herceptin (trastuzumab). Trastuzumab targets the HER2 receptor, commonly overexpressed in a variety of cancers, such as HER2-positive breast and stomach cancer.

EMA plans to revise biosimilar guidelines

EMA announced on 3 October 2011 that it has published a concept paper asking for comments on topics to be included in a potential revision of the agency’s 2006 biosimilar guideline, which covers non-clinical and clinical development of biosimilars. The paper will be released for a 3-month consultation period.

Biosimilar user fee levels and performance goals for the FDA

FDA and representatives from the drug industry negotiating a user fee for biosimilars have tentatively set performance goals and biosimilar user fee levels, creating a separate review programme for biosimilars.

How profitable will biosimilars be

The profitability of biosimilars remains an open question. Five years after launch it is thought that most biosimilars markets will look similar to generics markets (70% penetration, 25% of brand-name drug price) but also that a ‘brand-like’ market with lower price attrition and market share is possible [1].

FDA new drug approvals up in 2011: 900 biotech drugs in development

FDA had already approved 26 new drugs by the end of August 2011 compared to only 21 approved in 2010. Of note were six cancer drugs and two ground-breaking drugs for hepatitis C. The current year looks likely set a record for recent years for new drug approvals, which may total 35–40 by the end of 2011. After a slow start in the first two months with three new drug approvals and nine rejections in January and February 2011, FDA approved four new drugs, two of which were monoclonal antibodies, in March and five in April. Of the 11 new drugs approved in the first four months, only three biologicals were approved.

US$54 billion worth of biosimilar patents expiring before 2020

By 2020 biological products with sales of around US$23 billion in the EU and US$29 billion in the US are expected to be exposed to biosimilar competition [1].

Boehringer Ingelheim joins other Big Pharma going into biosimilars

Big Pharma is once again taking a major interest in biosimilars. The latest big pharmaceutical player to show an interest is biopharmaceutical specialist Boehringer Ingelheim. The German-based company announced on 26 September 2011 that it would create a dedicated division for the development and commercialisation of biosimilars.

Amphastar’s biosimilar enoxaparin approved by FDA – Momenta launches lawsuit

On 19 September 2011, and after years of conflict with FDA, Amphastar Pharmaceuticals (Amphastar) finally received approval to market a biosimilar version of sanofi-aventis’s blockbuster blood-thinner Lovenox (enoxaparin). The announcement, however, was closely followed by news that Momenta Pharmaceuticals (Momenta) had launched a lawsuit against Amphastar.

EMA biosimilar regulation should include complex biologicals

The EMA’s comprehensive biosimilar regulatory pathway, which includes the need for new clinical trials and comparability studies that demonstrate quality, efficacy, and safety, should be expanded to include complex biologicals, according to innovation researchers at Utrecht University, Utrecht, The Netherlands [1].

Generics and biosimilars affected by Obama’s deficit plans

US President Barack Obama’s plan for economic growth and deficit reduction, announced on 19 September 2011, recommends a series of healthcare reforms. The proposals include higher drug rebates for low-income patients, banning pay-to-delay deals between generics and originator companies and reducing biologicals exclusivity from 12 to seven years. The proposals aim to save US$320 billion in healthcare spending over 10 years.