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      Fair Pricing of Innovative Medicines: An EHA Position Paper

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          Abstract

          The problem High prices keep innovative medicines out of reach for many patients across Europe, resulting in growing inequalities in accessibility and standards of care. Budgetary pressures compel payers and insurers to make increasingly difficult choices, at the expense of patients and investment in innovation. Costly new therapies become available only for the lucky few —or for no one in those countries that lack the purchasing power or are left out of manufacturers’ marketing strategies altogether. With expensive combination therapies adding to the problem, the potential of scientific and medical innovation remains underused, not least in hematology. By severely limiting the uptake of novel gene and cell therapies, high prices are undercutting efforts to increase, personalize and optimize treatment options for patients suffering from blood disorders. 1 Causes High prices result from a complex set of interrelated factors. Causes can roughly be divided into three categories: Business models Manufacturers are primarily driven by the need to recoup the costs of research and development—of products that eventually make it onto the market and of those that don’t—and by a desire to offer substantial return on investment to investors. In a system that rewards patent rights with market exclusivity and which obscures R&D costs, price-setting and profit levels, bringing a profitable drug to market continues to be the main incentive, not the patient and public interest. Market access The authorization of drugs for the European market is based exclusively on criteria of safety and efficacy. As long as these are not supplemented by affordability, added-value and quality-of-life criteria, profit-driven development will prevail over models that put the patient and public interest first. Pricing and reimbursement Decision-making by public payers and insurers is done at the national level, based on different models and methodologies, rather than at the European level in a harmonized, concerted manner. Similarly, price negotiations with pharmaceutical companies are conducted by national governments and in secrecy, instead of collectively and transparently. This fragmentation has negative consequences for overall price levels, (widely disparate) accessibility for patients, value for (taxpayers’) money and the sustainability of health systems. The challenge The overall picture is one of imbalance between public and private interests all along the research-to-market development chain. 2 Too often, rewarding (commercial) innovation and investors prevails over the need to ensure access and affordability for patients and health systems. Clearly, achieving a perfect balance between private and public benefits is not an end in itself. Nor is the reduction of prices per se. The common goal of all stakeholders, in our view, must be to develop and agree on a set of principles and practices for fair pricing , that is, pricing that offers a proper and socially acceptable reward for developers and funders of innovation while ensuring affordable access to the best possible treatments for all patients across Europe . Solutions In light of the sizable challenges and the disparities across countries, no single, one-size-fits-all solution is possible. A number of elements can be identified however that will have to be part of any model for ensuring fair pricing and affordable access to innovative medicines: Intergovernmental collaboration on procurement and reimbursement Although more a response to, than a solution for the fundamental defects of existing pharmaceutical business models, cooperation between national governments on the procurement and reimbursement of the growing number of very expensive medicines is a necessary first step. The Beneluxa Initiative on Pharmaceutical Policy 3 offers the best example of how such cooperation can strengthen payers’ negotiation power in the face of the secretive divide-and-conquer approach traditionally adopted by pharmaceutical companies. Beneluxa has explored joint price negotiations and, potentially more impactful, joint horizon scanning. Its creation of the International Horizon Scanning Initiative (IHSI) addresses the information asymmetry between governments and companies and establishes an ‘early-warning system,’ allowing payers to better anticipate the arrival of expensive new medicines. By exchanging information and coordinating their ‘willingness to pay,’ the participating countries effectively form a united front that can make their collective red lines, rather than the company's demands, the starting point of price negotiations. Collaborative, harmonized Health Technology Assessment (HTA) would be another meaningful step towards ensuring access to the best possible medical care at the best possible price. Joint EU-level clinical assessments as proposed by the European Commission 4 will increase efficiency and reduce cost by pooling resources and expertise, streamlining regulatory processes and providing uniform guidance for Member States’ pricing and reimbursement decisions. New economic models While increased cooperation is essential, more fundamental change is needed. The case for developing a new economic model for pharmaceuticals—one that is transparent, balances the interests of all stakeholders and puts patients at the center—has been made by EHA previously. 5 In our view, the following principles should underlie any new model for the development, marketing, pricing and reimbursement of pharmaceuticals: a) The whole decision-making chain from drug development to pricing and reimbursement should be patient-centric, rather than drug-centric. Patients must be (meaningfully) involved throughout. b) New medicines entering the European market should not only be safe and efficacious (the criteria for authorization by the European Medicines Agency, EMA); they must also be affordable and accessible for patients and public health systems. c) In addition to safety, efficacy, affordability and accessibility, relevant clinical and patient benefit should be a key factor in pricing and reimbursement decisions. No public resources should be wasted on medicines that offer little or no added value compared to treatments already available. It is therefore important to enhance the ability of health systems “to review and adjust prices, and to withdraw funding for superseded or less cost-effective medicines if required,” as suggested in a WHO report on the pricing of cancer medicines. 6 The importance, as well as the complexity and the challenging nature of increasing the value of pharmaceutical spending has been aptly described by the OECD. 7 d) Any form of pricing coordination at the European level will have to take into account the differences in purchasing power between countries. A ‘one size fits all’ solution will not be possible. e) Transparency is a pre-condition for developing any effective and broadly accepted approach to ‘fair pricing.’ Manufacturers invoking costs to justify extraordinarily high pricing of their products cannot leave patients and (tax)payers in the dark about investment and profit levels. More openness from industry on bench-to-market costs needs to be matched by transparency from payers on the cost-benefit considerations underlying pricing and reimbursement decisions. An interesting model has been proposed by the International Association of Mutual Benefit Societies (AIM), in which a fixed amount of R&D costs for each new drug is used as the basis for calculating fair prices. If a pharmaceutical company wants to charge a higher price, it will have to provide full transparency on cost. 8 In an ideal scenario, the existing EU framework for market approval would be complemented by a mechanism for joint HTA (EU-level clinical assessments) as well as structural EU-level coordination on pricing. Along the lines of the model proposed by Uyl and Löwenberg, 9 such a mechanism would combine respect for national price-setting competencies with a collective, multi-stakeholder process for determining an upper limit to the price of a new innovative drug. All collectively determined maximum prices will have to be transparent, realistic and fair. Pricing deliberations will have to take into account the clinical-scientific evaluation of a treatment, the pharmaceutical industry's data and interests, and affordability for patients and health systems. With innovative drugs becoming ever more costly, societal willingness to pay for health gains, relative to disease burden and budgetary impact, becomes an important factor—see Annemans's commendable concept of ‘VIA pricing’ (value-informed, affordable prices for innovative medicines). 10 Thus, in addition to safety, efficacy and cost-effectiveness, socially and economically acceptable pricing must be a pre-condition for reimbursement. Incentivize affordable, accessible, sustainable innovation Since the causes of high prices are diverse and complex, no single measure or model will suffice to push pricing levels down. Intensified collaboration at the EU/international level and the introduction of new economic models will have to be supplemented by a balanced set of incentives to keep innovation affordable and accessible for patients and health systems. Active encouragement—which can take the shape of financial incentives, regulation or awareness campaigns—is needed in particular to: spur innovations in the diagnosis and treatment of rare diseases (see the EHA position paper on affordable access to orphan medicinal products 11 ). ensure affordable and equitable access to novel cell and gene therapies, such as CAR T-cell therapy. These innovative treatments represent a major step forward in personalized medicine, however the high cost of developing and administering them, combined with the lack of a harmonized European approach to clinical trials, regulatory approvals, HTA and reimbursement, has slowed down their uptake and is keeping them out of reach of the majority of European patients. increase access to publicly funded, cheaper clinical trials that are investigator-driven,patient-centered, risk-based, and less bureaucratic. In addition, development of practice-oriented ‘real-world trials’ may contribute to the optimization and personalization of treatments, and thus to ensuring that scarce healthcare budgets are spent on therapies that are cost-effective and of real added value to patients. boost the uptake of biosimilars, which are as safe and efficacious as their reference products but tend to be considerably less expensive. By helping to drive down the prices of the reference biologics themselves, as well as across product classes, the overall pricing impact of biosimilars is significant and likely to increase. 12,13 establish public-private partnerships that deliver affordable innovation, respond to unmet clinical needs and ensure that the interests of both public and private investors are served. We would also incentivize, rather than enforce, transparency on costs and price-setting. While we are a strong proponent of transparency, it should not be imposed as a stand-alone measure. Forced openness on pricing and cost could actually have a reverse effect on access and affordability, especially in middle- and lower-income countries, as Chalkidou et al have argued in response to the WHO report on cancer pricing. 14 The dilemmas around price transparency, as articulated by the OECD, 15 seem impossible to resolve without a fundamental overhaul and EU-wide harmonization of how pricing and reimbursement decisions are made. Conclusion High prices are a serious impediment to the uptake of innovative treatments and the sustainability of health systems. They are by no means the only factor influencing availability and accessibility, and it is important to stress that we do not regard the reduction of high medicine prices as an end in itself. Affordability is however crucial for improving access to the best possible treatment for patients across Europe, which must be the primary goal for healthcare professionals, the pharmaceutical industry and public health systems. The problem of (excessively) high prices has many causes and can only be solved through a combination of targeted policies, regulatory measures and collaboration between stakeholders. A holistic approach is needed, which takes the whole product lifecycle into account from development to uptake—with the patient interest at the center at all times. While much can be done at the national and regional level, achieving real and lasting results is only possible through collaboration at the European level. An EU policy and regulatory framework for HTA, pricing and reimbursement is needed. Where that is not (yet) possible, voluntary collaboration and coordination between EU Member States needs to be strongly encouraged. The EU and national authorities must heed the calls for collaborative action from patients, healthcare professionals and payers to ensure affordable and equal access to innovative medicines across Europe. Key messages for policy makers and stakeholders Affordability is crucial for improving access to innovative treatments for patients across Europe, and must be the primary goal for healthcare professionals, the pharmaceutical industry and public health systems. Fair pricing solutions must be developed by and with all stakeholders, in a way that benefits both public and private stakeholders, and with the patient's interest at the center, at all times. EHA calls on EU Member States to step up collaboration and coordination on HTA, horizon scanning, price negotiations and reimbursement. EHA calls on the EU institutions to develop a pharmaceutical strategy that: enables and supports collaboration between national authorities on pricing and reimbursement with a dedicated EU policy and regulatory framework prioritizes structural frameworks for harmonized HTA and coordination on pricing takes a holistic lifecycle approach, supplementing the safety and efficacy criteria at the heart of EU market authorization with affordability, accessibility, cost-effectiveness and (clinical/patient) benefit as requirements for reimbursement offers a balanced set of incentives to keep innovation affordable and accessible for patients and health systems promotes a new economic model for the development, marketing, pricing and reimbursement of pharmaceuticals that puts the patient at the center, balances the interests of public and private stakeholders and takes into account the differences in purchasing power between countries (no one-size-fits-all). EHA calls on all stakeholders to develop and agree on a set of principles and practices for fair pricing, ie, pricing that offers a proper and socially acceptable reward for developers and funders of innovation while ensuring affordable access to the best possible treatments for all patients across Europe. Disclosures AH: Consultancy for Takeda Oncology USA. Chair of EHA Task Force on Fair Pricing/EU Affairs Committee. JG: Research funding from AstraZeneca, Celgene, Janssen. PI of clinical trials: Roche/Genentech, AstraZeneca, Janssen, AbbVie, BeiGene, Epizyme, Gilead/Kite, Merck, Takeda, TG Therapeutics. Honoraria from AbbVie, AstraZeneca, BMS, Gilead, Janssen, Roche, Novartis, Merck, Karypharm, Morphosys. UJ: Employment/consultation for Novartis, Roche. Grants/pending grants from AbbVie, Bioverativ/BMS, Celgene, Gilead, Janssen, Novartis, Roche, Takeda-Millennium. PK: Employment with Central Bank of the Netherlands. GM: The author reports no relevant financial disclosures. MP: Employment with Imperial College London. Grants (to PNH Support) from Apellis Pharmaceuticals. CUdG: Unrestricted grants from Boehringer Ingelheim, Astellas, Celgene, Sanofi, Janssen-Cilag, Bayer, Amgen, Genzyme, Merck, Gilead, Novartis, AstraZeneca, Roche. RD: Employment at EHA Executive Offices.

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          Sustainability and affordability of cancer drugs: a novel pricing model

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            Biologicals and Biosimilars in Hematology: The Case of Rituximab

            Biological medicines have been a game-changer in medicine Biological medicines have shaped dramatic advances in the treatment of serious acute and chronic diseases like rheumatoid arthritis, inflammatory bowel disease, cancer, and hematological malignancies. However, this success has come at a price. Biological medicines can cost 10,000 euros or more per year, causing ‘financial toxicity’ for the patients concerned. 1 As a consequence, many countries in the world struggle with their drug budget as use of pharmaceuticals increases and new drugs, in particular biologicals, are very expensive. 2 The total spend on biological drugs in many countries is increasing by 5% to 10% per year. This situation is unsustainable in healthcare systems. After expiration of market exclusivity, alternative versions of innovative medicines introduce competition and this will drive prices down, increase access to formerly (too) expensive medicines and create headroom for innovation. For generic medicines this has been a very successful strategy. When it comes to biosimilars–equally effective and safe alternatives for innovative biological medicines–barriers appear to exist for prescribers and patients. The main reason is lack of knowledge of the essentials of biological medicines on the one hand and the new drug development paradigm for biosimilars on the other hand. This creates uncertainty among prescribers and patients alike, 3 and hence reluctance to accept biosimilars. That is a pity, as the competition made possible by biosimilars is the single most effective way to drive down the overall costs of medicines, improve patient access and create headroom for new innovative therapies. Three classes of therapeutic biological medicines 4 From a clinical point of view it may help to look at biological medicines from the perspective of observability of the effect the drug has on patients. It is reasoned that if the observability is high (the prescriber can observe whether the drug “works” or not) that the acceptance of biosimilars will also be higher. When the observability is low (eg, in cancer) it requires more trust in the development paradigm and the scientific and statistical principles behind the pharmaceutical. The first class of therapeutic biological medicines was substitution products: they were replacing or augmenting the body's own hormones (like growth hormone) or growth factors (like epoetin and filgrastim). These products, once injected, result in an almost universal therapeutic effect, measurable in a relatively short time, for example, as an increase in white or red blood cells. For this reason, these biosimilars were accepted relatively easily. With the advent of hybridoma techniques it became possible to produce monoclonal antibodies on a large scale, making it possible to treat patients with these agents. One of the first monoclonals was muronomab (OKT3), a murine antibody used in the treatment of transplant rejection. It was a major breakthrough in therapeutic possibilities. However, due to the murine residues in the molecule, the drug became notorious for allergic reactions. Hence, the fear of immune reactions became connected with biological therapies. One of the greatest successes in antibody development – both therapeutically and commercially - was the anti-TNF antibodies infliximab and adalimumab. This second class of biosimilars changed the fate of millions of patients with rheumatic diseases, inflammatory bowel diseases and psoriasis. It is not easy to observe efficacy in an individual patient: the therapeutic effect is delayed, and not all patients go into remission. As a result, this group has achieved fewer acceptances than class one. For many prescribers the absence of clinical trials for certain indications (as a result of the principle of indication extrapolation) was another reason not to prescribe a biosimilar instead of the originator drug. Then the third class of biological therapeutics became available, for example, rituximab and trastuzumab, compounds to be used in hematology (e.g, lymphoma treatment) and oncology (Her-2 receptor positive breast cancer). These molecules have - on a population level - revolutionized the therapy of diseases hitherto with a very poor prognosis. However, clinical effectiveness for an individual patient can only be seen at some point in the future, for example, an average increase in survival of 20% after 5 years. This implies that an individual prescriber cannot observe a clinical effect directly: he must rely on clinical trial data for each indication. Trials of biosimilars when tested in the most sensitive indication have the intention to illicit a difference – if such a difference between reference product and biosimilar is present. But this “most sensitive indication” might not be the most clinically relevant indication. So far, the acceptance of rituximab biosimilars by hematologists is better than that of trastuzumab biosimilars by medical oncologists. One reason could be that hematology relies more on laboratory results then solid tissue oncology. In addition, hematologists already had experience with filgrastim and epoetin biosimilars, available since 2008. Variability: inherent to biological medicines Traditional chemical medicines are produced on a large scale with a very predictable outcome. The purity is close to 100% and batch to batch variations are within narrow limits. Biological medicines are produced by living cells, and are consequently affected by subtle variations in the behavior of these cells when growing. In addition, these cells do not produce just one unique molecule, but a mixture of closely related isoforms. The molecular backbone (amino acid sequence) is the same, but subtle variations occur in sugar-like moieties in the molecule. In general these variations have little effect on the molecular action of the molecule (binding of a targeted protein). It should be realized that such variations actually occur from batch to batch. However, it is possible that these subtle changes induce an immunological response or other side effects, and therefore changes in the manufacturing of these medicines – which often occur - are tightly controlled by the manufacturing companies and the regulating authorities. In 2011, Schiestl et al published a letter in Nature Biotechnology showing that manufacturing changes at originator companies also affect parts of the molecule deemed critical for the clinical action, apparently still to the satisfaction of the regulators. 5 This led to the paradigm: variability is everywhere in biological molecules and not all variation may compromise efficacy and safety. Nevertheless, in several biosimilar trials it became clear that such variations in originator molecules do matter, and may show up in clinical trials optimized to detect even small differences between biological molecules. 6 Biological medicines: affordability and accessibility. Both development and manufacture of biological medicines were quite costly last century. Hence, these products got a high price tag, in general unaffordable for an individual patient. Due to their therapeutic success, healthcare systems looked for ways to provide access by including these expensive medicines in reimbursement schemes. But even with a limited co-payment, treatment with these medicines spells financial ruin for some families. As the number of these costly medicines increased, governments faced an unsustainable situation. Total worldwide sales of the top 10 biologicals increased from 77 to 82 billion dollars in 2018, an increase of 6% in 1 year (See Table 1). Global spending on therapeutic antibodies used in oncology amounted to $50 billion in 2018, in increase of 15% compared to 2017. Sales of oncology products like Opdivo and Neulasta increased by 25%. There are 3 options for governments to curb these costs: firstly to limit access, which from a societal perspective is very undesirable. Second, to negotiate lower prices, which in general is unsuccessful when products have market exclusivity, or thirdly stimulate competition with alternative versions once market exclusivity has expired. 7 This option is the most realistic, as market exclusivity has expired for 7 of the top 10 products and the alternative versions, biosimilars, have been licensed. As of January 2019, more than 50 biosimilars of high quality from 15 originator molecules have been licensed and are available on the European market and in several other continents (see Table 2). Table 1 Cost Development Globally of Top-10 Biologic Blockbusters Table 2 EU Approved Biosimilars by Molecule, November 2019 (not available in all EU-countries) (status November 29, 2019; 55 products) Development of biological medicines: originators and biosimilars However, before such products are accepted by prescribers and patients, there has to be a proper understanding of the essentials of biological medicines, and how subsequently, biosimilars can be developed. It is this lack of understanding that creates uncertainty among prescribers, and hence reluctance to prescribe. Understanding biosimilars has to start with the basics of biological medicines: how they are developed and manufactured, with all the variability inherent to biological medicines. Only then, can one understand the exact meaning of a biosimilar: a version of the innovator molecule, with essentially the same clinical properties: equally safe and efficacious. Biological medicines are complex molecules that are produced in living cells, so manufacturing conditions are critical for the outcome of the culture and purification of the therapeutic protein. One has to realize that the resulting product does not contain a single molecule, but a mixture of closely related isoforms. When a new batch is produced, there will be another mixture of closely related isoforms, however with in general the same clinical properties. In the lifetime of a biological product, manufacturers are often changing the process for a variety of reasons: to make the process more efficient, to get a more pure or more stable product, or just because a raw materials supplier changes. Any change of the manufacturing process leads to a new version of the active substance, and for the average biological this happens twice a year or more often. 8 The manufacturer has to demonstrate the comparability of the resulting versions from the old and the new manufacturing process in a carefully designed comparability exercise. The rules for this are laid down in the ICH Q5E guidelines, standard for all countries with a well-established medicines regulatory system. Regulators have thus extensive experience in comparing different versions of a biological regarding quality, efficacy and safety. So both EMA and FDA recognize that biosimilars are just new versions of an existing biological. What makes biosimilars similar? It was Schiestl and coworkers who reported for the first time how large the actual differences may be after such manufacturing changes, while remaining acceptable to the regulators. 5 In their paper they showed for a number of biologicals, among them rituximab, how critical quality attributes, those properties of a molecule that play a critical role in efficacy and safety, actually might vary. The significance of that paper is twofold. As the originator varies over time, it is not possible to make an exact copy of such a moving target. And second, it shows that properties of a biological can apparently vary between rather wide boundaries without affecting efficacy and safety. From this we can draw 2 conclusions. One is, the fact that a biosimilar cannot be an exact copy of an originator molecule is not a biosimilar problem, but lies in the variability of the originator. And secondly, as long as the biosimilar variability is within the limits of variation of the originator, we may expect the biosimilar to display the same efficacy and safety. Based on these principles EMA and FDA build a regulatory framework for assessing candidate biosimilars. By carefully establishing the chemical, pharmacological, immunological and other pre-clinical properties of such a candidate, a fingerprint can be made for the critical attributes of the biosimilar. 9 Once established, the validity of the fingerprint can be tested in a clinical trial optimized to elicit any possible differences in efficacy or safety. Such a trial is not to prove efficacy, because we know that already from the originator, but to confirm that the biosimilar does not behave differently from the originator in patients. Traditional clinical trials in a normal drug development process are notoriously insensitive to eliciting small differences between versions of a molecule, and asking for such trials shows poor understanding of clinical trial methodology. Some unique features of biosimilars Thus, the development of a biosimilar follows a novel drug development paradigm, resulting in a drug with the same quality, efficacy, and safety as any other drug. What makes a biosimilar unique? From biosimilars we know a lot more about quality and mode of action than of the average originator biologicals. This is the result of accumulating a decade of knowledge on an originator drug, in these aspects of molecular design. As a result many biosimilars are more pure and more stable than their originator counterparts, as they follow a more sophisticated optimization pathway. In general, there should be no difference in efficacy and safety but it has been reported that in some cases a biosimilar may seem to be more potent, as originators due to all the manufacturing changes over time may have drifted away from their original potency. 6 This then leads to extensive discussion with the regulators, reflected in the EPAR after licensing. A second unique feature is, that biosimilars have been defined so accurately in the pre-clinical phase, that more clinical trials in other indications have become redundant, even unethical. This is called extrapolation of indications and has been defined as extending information and conclusions from studies in one or more subgroups of the source patient population. 10 Based on these findings inferences can be made for other indications in patients, thus reducing the need to do additional trials. For companies striving for this, extrapolation is not a free ride: it requires solid scientific justification. Such evidence can be a similar mode of action / same receptor target. Relevant is also that in another subgroup of patients the safety risks must be the same. To explore potential differences between anti-TNF biologicals, psoriasis appears to be the most sensitive model. More sensitive than, for example, inflammatory bowel disease which shows so much variation in course of the disease and drug reaction, that proving biosimilarity is virtually impossible. In the case of rituximab rheumatoid arthritis is a very sensitive disease model, as it is based on the same receptor model and cell killing properties (ADCC) as hematologic malignancies. Again, if prescribers have no knowledge of these scientifically based principles, 10 they will find it difficult to accept and prescribe a biosimilar in extrapolated indications. Europe, the world leader for biosimilars since 2000 11 There has been a strong political will in Europe to develop a biosimilar approval pathway to encourage competition in the biologicals market. The European Medicines Agency subsequently developed an extensive set of guidelines for the industry and set up a transparent assessment model. By November 2019 this had resulted in 55 licensed biosimilars of 15 originator molecules (see Table 2 ). On each approved biosimilar, the EMA publishes an extensive European Public Assessment Report (EPAR), which includes all relevant raw quality data, research results and a critical appraisal of these data by the regulators. This means that at the time of marketing approval there is in the EPAR an abundance of critically assessed information available on each biosimilar, which may not show up in scientific journals. This information is much more valuable than scattered and selective publications in scientific journals, which usually come too late. Expressing an opinion on the intrinsic value of a new biosimilar without having read the EPAR is not possible and by definition flawed. European research has shown the way to set up an implementation program for biosimilars, based on “The Rule of Four”. 12 The following 4 principles work together to create a successful biosimilars policy in the hospital. Multi-stakeholder approach: involve everybody from top to bottom in your healthcare setting and educate about biosimilars; One-voice principle: the whole team should talk about biosimilars in a positive way, and as leaders avoid sending confusing mixed messages. This will greatly reduce any nocebo effect. Shared decision making: inform the patient that the treatment is initiated/continued with a biosimilar, an equally effective and safe alternative. Gain sharing: introduction of biosimilars requires extra effort (= time) from busy healthcare professionals. A part of the savings from biosimilars should benefit the clinical department that generates the savings. As a result, market competition is strongly developed, and the cost of biologicals decreases by billions of Euros (See Table 2). Biosimilars offer 5 wins for a typical solidarity-based European healthcare system: 1. Biosimilars offer greater value, lower cost for equal or better quality. 2. Biosimilars encourage competition, with subsequent lower innovator cost extending possibly to a whole therapeutic category.. 3. Patients can get earlier access to costly advanced medicines, with a significant health gain 4. More patients can get treatment for less budget 5. Biosimilars create headroom in the budget for new (costly) medicines. The case of rituximab in Europe In the context of this article we will discuss the example of rituximab in more detail. Rituximab (RTX) is a monoclonal antibody that binds to a CD20 cell surface protein, present on B lymphocytes. When RTX binds to CD20, it causes B-lymphocyte death, which helps in lymphoma and chronic lymphocytic leukemia (where B lymphocytes have become cancerous). It is also used in rheumatoid arthritis, where B lymphocytes are involved in joint inflammation. In granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), destroying the B lymphocytes lowers the production of antibodies thought to play an important role in attacking the blood vessels and causing inflammation. There are 4 possible mechanisms of action by which anti CD20 antibodies kill B cells: (i) antibody-dependent cellular cytotoxicity (ADCC) through binding of the Fc portion of rituximab to Fc-gamma-III receptor bearing effector cells; (ii) complement-dependent cytotoxicity (CDC) through binding of C1qA to the Fc domain of rituximab and subsequent lytic cascade; (iii) activation of signaling cascades that results in programmed cell death (apoptosis) and (iv) phagocytosis of malignant B cells by macrophages (antibody-dependent cellular phagocytosis (ADCP). Indirect evidence suggests that in vivo, dominance might differ by indication. These mechanisms thus need to be tested in the pre-clinical development phase once a candidate molecule has passed the elaborate physicochemical testing. 11 For this, companies have set up carefully validated in-vitro assays, and all the results have been published in the public domain. 13–15 There are maybe 20 or more rituximab biosimilars in development, but by early 2019, 7 rituximab-biosimilar brands were licensed in the EU. These involve essentially only 2 different products: GP2013 from Sandoz (Rixathon, Riximyo) and CT-P10 from Celltrion (Blitzima, Ritemvia, Truxima). Different brands of the same molecule were licensed to circumvent patent issues in some countries around certain indications. November 2019, there were 3 more rituximab biosimilars were under review at the EMA. The candidate biosimilars were tested in a variety of clinical indications, but in the end they got all reference product indications extrapolated by the EMA. The patient trials, performed in rheumatoid arthritis and advanced follicular lymphoma, were discussed critically by Mielke et al 16 and also by Wörmann and Sinn. 17 Licensing of biological medicines is centralized in Europe, as it allows free trade of licensed medicines between EU countries. Implementation of use and reimbursement for patients however is a national issue. Acceptance of the rituximab biosimilars by prescribers was relatively smooth in Europe after the earlier introduction of TNF-alfa inhibitors infliximab and etanercept. This positive experience led in The Netherlands, for instance, within 3 months after launch to 90% of patients being switched to biosimilars (personal communication). There was even a back-switch from SC rituximab to IV biosimilars, because this was deemed cost effective by many due to the large price difference between biosimilar and reference product. Hematologists were already familiar with biosimilars, and hematology is a more heavily laboratory-science driven specialty than many others. Outlook and recommendations There are unfortunately confusing differences between the situations in the US and Europe. 18 Many countries see FDA as a leading agency for drug approval. In the case of biosimilars this is not true. Due to political lobbying and constraints in legislation (induced again by political lobby) the FDA was hardly able to develop a flourishing biosimilar pathway. 12 The predominantly profit-driven healthcare market is very biosimilar unfriendly. Of the 17 US-licensed biosimilars, only 7 are available on the market, and only 2 are more or less a commercial success. The atmosphere around biosimilars in the US is so poisoned by misinformation and political turmoil, that US prescribers have little confidence in biosimilars. 19 As explained before, in Europe the situation is completely different. In 2016 there were 700 million patient biosimilar treatment days without complications. Some 173 switch trials have almost universally shown biosimilars to be equally safe and efficacious as originators. 20,21 The argument of immunogenicity has been spelled out in detail, and there is now positive evidence that biosimilars bear no additional risks to immune response than originators. 22,23 Responsible health care professionals like doctors and pharmacists who work in a solidarity-based healthcare system cannot deny the nation the immense advantages and savings brought about by biosimilars. Refusal to improve healthcare sustainability with biosimilars is actually a sign of distrust in the drug regulatory system as a whole. There is no single scientific argument left not to use them. No country can any longer afford NOT to use biosimilars.
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              Costs of haematological disease high and rising

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                Author and article information

                Journal
                Hemasphere
                Hemasphere
                HS9
                HemaSphere
                Wolters Kluwer Health
                2572-9241
                October 2020
                30 September 2020
                : 4
                : 5
                : e488
                Affiliations
                [1 ]Department of Hematology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
                [2 ]Barts Cancer Institute, Queen Mary University of London, London, UK
                [3 ]Medical University of Vienna, Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Vienna, Austria
                [4 ]Inspire2Live, Amsterdam, The Netherlands
                [5 ]Amyloidosis Research and Treatment Center, Foundation IRCCS Policlinico San Matteo, University of Pavia, Italy
                [6 ]PNH Support, a Charitable Incorporated Organization registered with the Charities Commission of England and Wales (no. 1161518), London, UK
                [7 ]Erasmus School of Health Policy and Management, Erasmus University, Rotterdam, The Netherlands
                [8 ]Institute for Medical Technology Assessment, Rotterdam, The Netherlands
                [9 ]European Hematology Association, The Hague, The Netherlands.
                Author notes
                Correspondence: Robin Doeswijk (e-mail: r.doeswijk@ 123456ehaweb.org ).
                Article
                HemaSphere-2020-0217 00025
                10.1097/HS9.0000000000000488
                7544294
                3fddbd4c-1a4e-4b8e-b573-fa6b1047b621
                Copyright © 2020 the Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the European Hematology Association.

                This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0

                History
                : 19 August 2020
                : 20 August 2020
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