Estratégias de Avaliação de Tecnologias em Saúde (ATS) para medicamentos para doenças raras: uma revisão rápida de escopo / Health Technology Assessment (HTA) strategies for drugs in rare diseases: a rapid scope review

A Avaliação de Tecnologias em Saúde (ATS) considera os domínios de benefícios clínicos, perfil epidemiológico, inovação, custo-efetividade, ética e de equidade no processo de decisão dos gestores em saúde. No contexto dos medicamentos para doenças raras, é desafiador o trabalho da ATS, dada a baixa disponibilidade de evidências robustas e o alto custo unitário das tecnologias. O objetivo da revisão foi analisar as estratégias disponíveis de avaliação das demandas de incorporação de medicamentos para o tratamento de doenças raras em sistemas de saúde. Foi realizada uma revisão rápida com busca estruturada na base de dados MEDLINE (via PubMed), Cochrane Library e Health Systems Evidence. Incluíram-se estudos sobre estratégias de avaliação de medicamentos utilizados para tratamento de doenças raras. Adicionalmente, foram realizadas buscas nas Agências de ATS do Brasil, Austrália, Nova Zelândia, Canadá, Reino Unido, França, Estados Unidos e Alemanha. A síntese dos resultados foi qualitativa com o agrupamento dos achados nos seguintes eixos temáticos: Segurança e efetividade, Custo-efetividade, Impacto orçamentário e Perspectiva da sociedade. Foram identificadas 267 publicações, sendo selecionadas 16 das bases de dados indexadas e 7 da literatura cinzenta. Com a análise dos documentos, pode-se concluir que a adoção de critérios específicos harmonizada com o atual modelo de ATS é um possível caminho a ser seguido no contexto dos medicamentos para doenças raras. Concomitante a isso, abordagens no sentido de incentivo a pesquisa e produção de dados de mundo real e a criação de comitês específicos para tratativa do tema nas agências de ATS apresentam-se como alternativa para lidar com as fragilidades no contexto de doenças raras.

The Health Technology Assessment (HTA) considers evidence regarding clinical benefits, epidemiological profile, innovation, cost-effectiveness, ethics and equity in its assessment process to support managers' decisions. In the context of drugs in rare diseases, the work of the ATS is challenging given the low availability of evidence and the high cost of technologies. The objective of the review was to analyze the available strategies for evaluating the demands for incorporating drugs for the treatment of rare diseases in health systems. A rapid review was performed with a structured search in the MEDLINE database (via PubMed), the Cochrane Library and Health Systems Evidence. Studies on strategies for evaluating drugs used to treat rare diseases were included and, additionally, searches were carried out in ATS Agencies in Brazil, Australia, New Zealand, Canada, United Kingdom, France, United States and Germany. The synthesis of the results was qualitative, grouping the major ones into thematic axes: Safety and effectiveness, Cost-effectiveness, Budgetary impact and Society's perspective. 267 publications were identified, 16 selected from indexed databases and 7 from gray literature. With the analysis of the documents, it can be concluded that the adoption of specific criteria harmonized with the current ATS model is a possible path to be followed in the context of drugs for rare diseases. At the same time, approaches to encourage research and the creation of specific committees to deal with the issue in HTA agencies would complement actions towards the consolidation of this work.

Research advances in pharmacotherapy for rare diseases in children / 中国当代儿科杂志

There are more than 7 000 rare diseases and approximately 475 million individuals with rare diseases globally, with children accounting for two-thirds of this population. Due to a relatively small patient population and limited financial resources allocated for drug research and development in pharmaceutical enterprises, there are still no drugs approved for the treatment of several thousands of these rare diseases. At present, there are no drugs for 95% of the patients with rare diseases, and consequently, the therapeutic drugs for rare diseases have been designated as orphan drugs. In order to guide pharmaceutical enterprises to strengthen the research and development of orphan drugs, various nations have enacted the acts for rare disease drugs, promoted and simplified the patent application process for orphan drugs, and provided scientific recommendations and guidance for the research and development of orphan drugs. Since there is a relatively high incidence rate of rare diseases in children, this article reviews the latest research on pharmacotherapy for children with rare diseases.

Trends and Challenges in Access to Essential Medicines in Ethiopia and the Contributions of Local Pharmaceutical Production

Decades ago, the United Nations declared that access to essential medicines was a key element of universal human rights. Accordingly, member states have been striving to address this issue through strategic policies and programs. Strengthening local pharmaceutical production has been a pivotal strategy adopted by many developing countries including Ethiopia. The government of Ethiopia identified local pharmaceutical production as a key industrial sector and has been implementing a ten-years strategic plan to improve capabilities and attract investment. Such support is needed because local production could satisfy only 15 to 20% of the national demand, typically from a limited portfolio of medicines in conventional dosage forms. The increasing prevalence of chronic diseases has accentuated the need for a more sustainable supply to reduce reliance on imports and increase access to essential medicines. A full understanding of the structure, constraints and complexities of the Ethiopian pharmaceutical market structure is vital to direct effective policies, target most impactful investments and exploit opportunities for leapfrogging. Hence, the purpose of this review was to assess the trends and challenges in access to essential medicines and local pharmaceutical production in Ethiopia. Literature search through major databases and review of policy documents and performance reports from relevant sector institutions were made to extract information for the review

A Case of Lenalidomide-induced Drug Eruption Presenting as Pruritus and Erythema Covering the Whole Body / 대한피부과학회지

Lenalidomide is an immunomodulatory drug used for the treatment of multiple myeloma. Several cases of hematological, gastrointestinal, and cutaneous side effects have been reported for this drug. A 67-year-old patient with multiple myeloma had initially been treated with bortezomib, but the treatment was discontinued due to neurological side effects. The chemotherapeutic regimen of this patient was changed to lenalidomide. Ten days later, erythema and pruritus developed on the entire body. The lenalidomide dose was subsequently reduced and the patient was additionally treated with topical steroids. Because lenalidomide is supplied by the Korean Orphan Drug Center, physicians have limited experience with the drug, and hence, its side effects tend to be underestimated. In addition, the Korean literature lacks reports on such cases. We describe herein a case of lenalidomide-induced drug eruption presenting as a pruritic rash covering the whole body.

Statin Intolerance: an Overview of the Current Status and Possible Treatment Options

Lowering serum low-density lipoprotein cholesterol (LDL-C) is the mainstay for reduction of risk of cardiovascular disease (CVD), the second most common cause of death in Korea. The 2015 Korean guidelines for management of dyslipidemia strongly recommend the use of statins in patients at risk of CVD. Statin therapy, which is the gold standard for CVD, reduces LDL-C level by 40% to 60% and is generally well tolerated. However, many patients are intolerant to statins and discontinue therapy or become nonadherent to therapy because of actual/perceived side effects. The most common of these side effects is the statin-associated muscle symptom (SAMS). Discontinuation and repetitive re-challenge with statins can help identify SAMS. If serum creatinine kinase level is more than 10 times the upper limit of normal, statin therapy must be stopped immediately, and the physician should identify possible causes including rhabdomyolysis and treat appropriately. In other patients, it might help to switch to a less potent statin or to use statins at intermittent non-daily dosing. To achieve target LDL-C level, non-statin lipid-lowering therapies such as dietary modifications, ezetimibe, and bile acid sequestrants may be added. Several new drugs have recently been approved for lowering LDL-C level. Alirocumab and evolocumab are monoclonal antibodies that inhibit proprotein convertase subtilisin/kexin type 9, and both drugs cause large reductions in LDL-C, similar to statins. Lomitapide and mipomersen are orphan drugs used as adjuncts to other lipid-lowering therapies in patients with homozygous familial hypercholesterolemia.

Desafios de uma parceria para o desenvolvimento de produtos: o caso de um tratamento para malária / Challenges in a product development partnership: a malaria treatment case study

Analisou-se o processo de desenvolvimento da combinação em dose fixa de artesunato e mefloquina no Brasil à luz de dimensões do acesso a medicamentos, visando registrar acertos e lições aprendidas. Tratou-se de um estudo de caso do desenvolvimento de produto no âmbito de uma parceria público privada. Foram realizadas entrevistas semiestruturadas com atores-chave envolvidos nas diferentes etapas do desenvolvimento e analisados documentos. Modelo lógico de acesso aos medicamentos assim como avaliação de programas foram importantes referenciais que orietaram o desenho do estudo e a análise. A despeito dos vários acertos ao longo do trabalho, o planejamento da adoção do produto foi insuficientemente contemplado na arquitetura do projeto em análise, irregularidades na demanda geraram dificuldades no planejamento da produção do produto, que tem adoção irregular na região das Americas. O projeto pode ser considerado bem sucedido, tendo sido alcançado o produto e atendidos os pilares propostos de fortalecimento de capacidades e alianças tanto institucionais quanto individuais e advocacy. No entanto, foi possível registrar fragilidades do processo a serem mitigadas em projetos futuros de mesma natureza.

Current View of Orphan Drug Usage in Tertiary Hospital and Rare Incurable Disease Hospital

OBJECTIVE: Until now, there is minimal number of research for overall domestic status of orphan drug use in Korea. The purpose of this study is to identify the list of orphan drugs available in Korea and to understand the status of orphan drug usage in tertiary Hospitals and rare incurable disease Hospital. METHODS: We made domestic orphan drug lists based on available orphan drugs in Korea. Based on this lists, we conducted e-mail survey from August, 2014 to September, 2014 to identify domestic status of orphan drug usage including the availability and management of orphan drugs. RESULTS: There are three hundred and eighteen orphan drugs (184 ingredients) registered in Ministry of Food and Drug Safety. Among the three hundred and eighteen orphan drugs, Two hundred and twenty-eight drugs (102 ingredients) were selected. Information on each item was collected and documented with generic and brand names, manufacturers, wholesalers, indications, FDA approval status and insurance coverage. Forty-three tertiary hospitals and thirty-two rare incurable hospitals responded to the survey questionnaire (57.3%). According to the survey result, the antineoplastics and immunomodulating agents group has the highest percentage (40%) usage in the hospital. Of fortythree tertiary hospitals, thirteen hospitals manage orphan drugs separately (30.2%). Based on the reply, most of the healthcare professionals commented the drug information related to efficacy and safety including medication counseling of orphan drugs is insufficient. CONCLUSION: Through this study we anticipate providing an understanding of orphan drug usage status in Korea. We found the limited resources to the information on orphan drugs and this information requires updating on a regular basis. This can be the basis for further studies about preparing drug information, educational resources for rare disease patients.

Las enfermedades raras / Rare diseases

A partir de la década de los 80, las enfermedades raras han ido adquiriendo un lugar prioritario en los programas de salud y en la opinión pública. Se definen como aquellas que tienen una prevalencia menor a 1:2.000 individuos. En general son enfermedades crónicas, invalidantes y en más de un 80% de origen genético. Se estima que existen entre 7.000 y 8.000 enfermedades raras y que afectan al 6-8% de la población. Dada la baja prevalencia específica de cada afección, hay muy poco conocimiento de parte de la comunidad médica en relación a su diagnóstico y manejo. En este artículo se discute la importancia del diagnóstico de precisión, para su adecuado manejo y asesoramiento genético, también se muestra la importancia del trabajo en redes en las enfermedades de baja prevalencia y se destaca el rol fundamental de las agrupaciones de padres y familiares en promover políticas de salud para los afectados.

From the early 80's rare diseases had achieved a priority role in national health programs and in public opinion. Rare diseases are define as the ones who have a prevalence lower than 1:2000 habs. Generally, they are chronic and life threatening diseases and more than 80% of them are from genetic origin. It is estimated that there are between 7,000 and 8,000 different rare diseases affecting 6-8% of world population. Due to the low prevalence of each disease, there are very poor knowledge in the medical community about their diagnosis and management. In this review we discuss about the importance of the precise molecular diagnosis for the best treatment and genetic counselling; we also showed the importance of working in network in these diseases of low prevalence and we discuss about the fundamental role of parents associations in promoting public health politics for affected people.

Promoção do acesso e inovação em saúde: alternativas ao modelo baseado na proteção à proriedade intelectual em discussão na Organização Mundial de Saúde / Promoting access and innovation in health: alternatives to the model based on intellectual property protection within the World Health Organization

O modelo de promoção da inovação em saúde predominante na atualidade é baseado na proteção da propriedade intelectual por meio da concessão de patentes. A patente permite ao seu titular explorar o objeto protegido com exclusividade por um determinado período de tempo, no qual seria obtido o retorno do investimento feito na pesquisa e desenvolvimento do produto. A obtenção de retorno do custo da P&D pela comercialização do produto final, potencializada pelo monopólio conferido pela patente, faz com o que o detentor da tecnologia estabeleça preço de venda elevado. O sistema de patentes potencializa, assim, a maximização de lucros das empresas farmacêuticas, ampliando seu interesse no desenvolvimento de produtos rentáveis e na mercantilização da saúde. Foram identificadas e sistematizadas evidências que demonstram que a aplicação do sistema de patente na área da saúde tem gerado problemas de inovação, ao direcionar recursos de P&D voltados para a produção de produtos rentáveis e não voltados a atender necessidades de saúde; e de acesso, uma vez que o preço elevado excluí milhões de pessoas do consumo do produto. Ficou demonstrada a necessidade de busca de medidas para superação desses problemas. Identificou-se medidas existentes dentro do sistema de patentes que poderiam ser utilizadas para minimizar os problemas identificados em curto e médio prazo, com uma abordagem caso a caso. Optou-se por utilizar uma abordagem sistêmica, demonstrando a necessidade de medidas alternativas ao sistema de patentes para resolução dos problemas identificados a longo prazo. A identificação de medidas alternativas foi realizada por meio da revisão de mais de uma centena de propostas enviadas em chamada aberta e recomendações feitas por diferentes órgãos da Organização Mundial de Saúde no período de 2003 a 2012. As medidas identificadas foram descritas, sistematizadas e analisadas. Conclui-se que a principal proposta atualmente em discussão é a criação de um Fundo Global de P&D, no marco de uma Convenção Global de P&D em saúde, que financiaria a P&D mediante a concessão de prêmios, e não de patentes. Os resultados da P&D seriam tratados como bens públicos, e poderiam ser produzidos por qualquer interessado. Esse modelo visa desvincular os custos da P&D do preço final do produto. Com isso, tem o potencial de solucionar os problemas de inovação e acesso à saúde identificados no sistema de patentes. No entanto, enfrenta grande oposição dos defensores do sistema de patentes, principalmente grandes empresas farmacêuticas interessadas na ampliação da mercantilização da saúde.

The model for promoting innovation in health prevalent nowadays is based on the protection of intellectual property by granting patents. The patent allows the holder to exploit the protected object with exclusivity for a certain period of time, in which he could obtain the return of investment made in research and development. The need to obtain the return of the investments made on R&D by selling the final product, boosted by the monopoly conferred by the patent, allows the patent holder to establish high price. The patent system maximizes profits of pharmaceutical companies, expanding its interest in developing profitable products and in health commodification. We identified and systematized evidence to show that the application of the patent system in the health sector has generated innovation problems, by directing R&D resources to the production of profitable products and not driven by health needs; and access, since the high price excludes millions of product consumption. It was demonstrated the need for seeking measures to overcome these problems. We identified existing measures within the patent system that could be used to alleviate the problems identified in the short and medium term, with a case-by-case approach. We chose to use a systemic approach, demonstrating the need for alternative measures to the patent system to resolve the problems identified in the long-term. The identification of alternative measures was conducted through review of more than a hundred proposals submitted in open call and recommendations made by different bodies of the World Health Organization from 2003 to 2012. The measures identified have been described, systematized and analyzed. It is concluded that the main proposal currently under discussion is the creation of a Global R&D Fund, as part of a Global R&D Convention on health, which would finance R&D by granting prizes, and not patents. The results of R&D would be treated as public goods, and could be produced by any interested party. This model aims to delink the costs of R&D from the final price of the product. Thus, it has the potential to solve the problems of innovation and access to health identified in the patent system. However, it faces strong opposition from advocates of the patent system, especially large pharmaceutical companies interested in expanding health commodification.

The Use of Orphan Drugs for Infectious Disease: Current Status and Unmet Needs / 대한내과학회지

BACKGROUND/AIMS: The aim of this study was to investigate the inconveniences and potential improvements in the use of orphan drugs for the treatment of infectious diseases, as determined by a survey of medical professionals. METHODS: An email was sent twice to the members of the Korean Society for Chemotherapy, and an online survey was conducted. The data collected were analyzed in terms of the frequency of drug use and associated difficulties as well as the scope for improvement. RESULTS: A total of 77 medical professionals participated in this survey. Rabies vaccine (n = 52), rabies immunoglobulin (n = 47), and foscarnet injection (n = 43) were supplied mainly through the Korea Orphan Drug Center (KODC), while artesunate (n = 29), quinine sulfate capsule (n = 24), quinine dihydrochloride injection (n = 23), and quinidine gluconate injection (n = 21) were supplied mainly through the National Medical Center (NMC). Difficulties in obtaining orphan drugs through the KODC were related to the KODC drug retrieval system (n = 67, 95.7% of respondents), lack of supplies on holidays (n = 66, 94.3%), complicated application procedures and documents (n = 61, 87.1%), and shipping inconveniences (n = 61, 87.1%). With regard to the use of orphan drugs supplied through the NMC, 52 participants (98.1%) responded that a staff visit should be mandatory for obtaining the drugs. CONCLUSIONS: Antivirals and antimalarial drugs are major orphan drugs used for the treatment of rare infections. It is necessary to establish a more efficient system to ensure a stable supply of orphan drugs, including on holidays, to enhance the smart drug searching system, and to simplify related administrative procedures.

Clinical genetics and public policies: how should rare diseases be managed?

The implementation of a specific policy for rare diseases in the Brazilian Unified Health System presents challenges in terms of its rationale. Recognizing the importance of rarity in the context of public health means understanding genetics as one of the dimensions of disease and accepting that Brazil is undergoing a period of transition in health indicators. Although most rare diseases lack pharmacological treatment and genetic counseling constitutes the best strategy for their prevention, the cost of "orphan drugs" and their consequent lack of cost-effectiveness are still claimed as hurdles to the implementation of public policies in this field. Epidemiological aspects should not be used as isolated criteria for prioritization in public policies

Propuesta de normativa de registro sanitario para los "medicamentos huérfanos" en la República Bolivariana de Venezuela / Proposal for a health registration regulation for "orphan drugs" in the Bolivarian Republic of Venezuela

Los medicamentos huérfanos son aquellos requeridos para diagnosticar, prevenir o tratar enfermedades poco frecuentes, pero que pueden ser graves y debilitantes. Este trabajo tiene como objetivo proponer la implementación de una normativa de registro sanitario específica para los medicamentos huérfanos en la República Bolivariana de Venezuela, considerando la situación actual de salud y las necesidades de la población, a fin llegar a todos los niveles, facilitando la disponibilidad del mayor número de medicamentos que son requeridos por un grupo reducido de pacientes. Es necesario que las autoridades sanitarias en Venezuela fortalezcan el sistema de salud pública estableciendo políticas para satisfacer las necesidades de la población en general pero que también incluya a las minorías. Se plantean las consideraciones técnicas, legales, fiscales y regulatorias necesarias para la implementación de esta normativa, así como los criterios de inclusión para clasificar un medicamento dentro la categoría de "huérfanos". La metodología utilizada fue de tipo documental, haciendo énfasis en el análisis teórico y conceptual del material a fin de elaborar la propuesta de la normativa para medicamentos huérfanos en la República Bolivariana de Venezuela. Se realizó un análisis teórico de la información obtenida para determinar la situación actual nacional e internacional a fin de obtener los resultados que sirvieron de base para desarrollar la propuesta.

Orphan drugs are those required to diagnose, prevent or treat rare diseases but that may be severe and debilitating; besides, reduce the quality of life of patients and their families. This project aims to propose a special regulation for Orphan Drugs in the Bolivarian Republic of Venezuela taking into account the current health situation and needs of the population in order to reach all levels by facilitating the availability of a bigger amount of drugs required by a small group of patients. It is necessary for health authorities in Venezuela to strengthen the public health system by establishing policies to meet the needs of general population but also include minorities. Technical, legal and regulatory considerations arise for the implementation of this normative, as well as the inclusion criteria for drugs within the category of "orphans". The methodology used is documentary, as it emphasizes the theoretical and conceptual analysis of the material for the proposed regulation for orphan drugs in the Bolivarian Republic of Venezuela. A theoretical analysis of the information was made to determine the current national and international situation in order to obtain the results as a basis to develop the proposal.

Clinical experience in managing patients with hereditary angioedema in Korea: questionnaire survey and a literature review

PURPOSE: Hereditary angioedema is a familial disease which is caused by a genetic deficiency or functional defect of the C1 inhibitor, and it features episodic swelling that can affect any part of the body. A great number of patients are estimated not to have an accurate diagnosis after the onset of symptoms, and close attention is required because sudden hereditary angioedema attacks can result in even death. METHODS: We sent an e-mail questionnaire to 975 members of the Korean Academy of Asthma, Allergy and Clinical Immunology. A total of 82 members replied. The questionnaire, including 15 questions about the diagnosis and management of hereditary angioedema, was developed by the anaphylaxis/urticaria, angioedema workgroup of the Korean Academy of Asthma, Allergy and Clinical Immunology. RESULTS: Forty-two percent of the respondents had experience with treatment of a suspected case of hereditary angioedema, and 15.9% made a confirmed diagnosis of hereditary angioedema. When the respondents suspected of cases, 91.4% of them performed tests for C3 and C4 concentrations and C1 inhibitor level. For maintenance treatment, most of the respondents used androgen, and only 22% found that C1 inhibitor concentrates can be prescribed through the Korea Orphan Drug Center in Korea. CONCLUSION: Allergy physicians in Korea substantially recognized the correct diagnosis and treatment of hereditary angioedema. However, there was a lack of awareness for the latest treatments, such as C1 inhibitor concentrates. Education of doctors and the public is needed.

Challenges and strategies of drug innovation / 药学学报

Drug research involves scientific discovery, technological inventions and product development. This multiple dimensional effort embodies both high risk and high reward and is considered one of the most complicated human activities. Prior to the initiation of a program, an in-depth analysis of "what to do" and "how to do it" must be conducted. On the macro level, market prospects, capital required, risk assessment, necessary human resources, etc. need to be evaluated critically. For execution, drug candidates need to be optimized in multiple properties such as potency, selectivity, pharmacokinetics, safety, formulation, etc., all with the constraint of finite amount of time and resources, to maximize the probability of success in clinical development. Drug discovery is enormously complicated, both in terms of technological innovation and organizing capital and other resources. A deep understanding of the complexity of drug research and our competitive edge is critical for success. Our unique government-enterprise-academia system represents a distinct advantage. As a new player, we have not heavily invested in any particular discovery paradigm, which allows us to select the optimal approach with little organizational burden. Virtue R&D model using CROs has gained momentum lately and China is a global leader in CRO market. Essentially all technological support for drug discovery can be found in China, which greatly enables domestic R&D efforts. The information technology revolution ensures the globalization of drug discovery knowledge, which has bridged much of the gap between China and the developed countries. The blockbuster model and the target-centric drug discovery paradigm have overlooked the research in several important fields such as injectable drugs, orphan drugs, and following high quality therapeutic leads, etc. Prejudice against covalent ligands, prodrugs, nondrug-like ligands can also be taken advantage of to find novel medicines. This article will discuss the current challenges and future opportunities for drug innovation in China.

Current views on rare diseases research and orphan drugs development / 生物工程学报

Interest in rare diseases research and orphan drugs development has been increased distinctly in recent years. The number of affected people with rare diseases is considerable around the world and the formulation of national and international incentive policies to accelerate orphan drugs development, aiming at offering facilities and necessary conditions for patient access to treatment, gains favorable results. In particular, more measures should be taken to catalyze further progress due to behindhand level in this field in China. Additionally, therapeutic methods of rare diseases were also discussed.