Considerations from the Innovation and Quality Induction Working Group in Response to Drug-Drug Interaction Guidance from Regulatory Agencies: Guidelines on Model Fitting and Recommendations on Time Course for In Vitro Cytochrome P450 Induction Studies Including Impact on Drug Interaction Risk Assessment.

Translational and ADME Sciences Leadership Group Induction Working Group (IWG) presents an analysis on the time course for cytochrome P450 induction in primary human hepatocytes. Induction of CYP1A2, CYP2B6, and CYP3A4 was evaluated by seven IWG laboratories after incubation with prototypical inducers (omeprazole, phenobarbital, rifampicin, or efavirenz) for 6-72 hours. The effect of incubation duration and model-fitting approaches on induction parameters (Emax and EC50) and drug-drug interaction (DDI) risk assessment was determined. Despite variability in induction response across hepatocyte donors, the following recommendations are proposed: 1) 48 hours should be the primary time point for in vitro assessment of induction based on mRNA level or activity, with no further benefit from 72 hours; 2) when using mRNA, 24-hour incubations provide reliable assessment of induction and DDI risk; 3) if validated using prototypical inducers (>10-fold induction), 12-hour incubations may provide an estimate of induction potential, including characterization as negative if <2-fold induction of mRNA and no concentration dependence; 4) atypical dose-response ("bell-shaped") curves can be addressed by removing points outside an established confidence interval and %CV; 5) when maximum fold induction is well defined, the choice of nonlinear regression model has limited impact on estimated induction parameters; 6) when the maximum fold induction is not well defined, conservative DDI risk assessment can be obtained using sigmoidal three-parameter fit or constraining logistic three- or four-parameter fits to the maximum observed fold induction; 7) preliminary data suggest initial slope of the fold induction curve can be used to estimate Emax/EC50 and for induction risk assessment. SIGNIFICANCE STATEMENT: Regulatory agencies provide inconsistent guidance on the optimum length of time to evaluate cytochrome P450 induction in human hepatocytes, with EMA recommending 72 hours and FDA suggesting 48-72 hours. The Induction Working Group analyzed a large data set generated by seven member companies and determined that induction response and drug-drug risk assessment determined after 48-hour incubations were representative of 72-hour incubations. Additional recommendations are provided on model-fitting techniques for induction parameter estimation and addressing atypical concentration-response curves.

Trajectories of dispensed prescription opioids among beneficiaries enrolled in a Medicaid controlled substance "lock-in" program.

PURPOSE: "Lock-in" programs (LIPs) are used by health insurers to address potential substance (eg, opioid) misuse among beneficiaries. We sought to (1) examine heterogeneity in trajectories of dispensed opioids (in average daily morphine milligram equivalents (MMEs)) over time: prior to, during, and following release from a LIP, and (2) assess associations between trajectory patterns and beneficiary characteristics. METHODS: Medicaid claims were linked to Prescription Drug Monitoring Program records for a cohort of beneficiaries enrolled in the North Carolina Medicaid LIP (n = 2701). Using latent class growth analyses, we estimated trajectories of average daily MMEs of opioids dispensed to beneficiaries across specific time periods of interest. RESULTS: Five trajectory patterns appeared to sufficiently describe underlying heterogeneity. Starting values and slopes varied across the 5 trajectory groups, which followed these overall patterns: (1) start at a high level of MMEs, end at a high level of MMEs (13.1% of cohort); (2) start medium, end medium (13.2%); (3) start medium, end low (21.5%); (4) start low, end medium (22.6%); and (5) start low, end low (29.6%). We observed strong associations between patterns and beneficiaries' demographics, substance use-related characteristics, comorbid conditions, and healthcare utilization. CONCLUSIONS: In its current form, the Medicaid LIP appeared to have limited impact on beneficiaries' opioid trajectories. However, strong associations between trajectory patterns and beneficiary characteristics provide insight into potential LIP design modifications that might improve program impact (eg, LIP integration of substance use disorder assessment and referral to treatment, assessment and support for alternate pain therapies).

Phosphate-Binder Use in US Dialysis Patients: Prevalence, Costs, Evidence, and Policies.

Medicare costs for phosphate binders for US dialysis patients and patients with chronic kidney disease enrolled in Medicare Part D exceeded $1.5 billion in 2015. Previous data have shown that Part D costs for mineral and bone disorder medications increased faster than costs for all Part D medications for dialysis patients. Despite extensive use of phosphate binders and escalating costs, conclusive evidence is lacking that they improve important clinical end points in dialysis patients or non-dialysis-dependent patients with chronic kidney disease. Using dialysis patient data from the US Renal Data System and laboratory information from the Centers for Medicare & Medicaid Services (CMS) CROWNWeb data, we update information on trends in phosphate-binder use, calcium and phosphorus values, and costs for Medicare-covered dialysis patients. We discuss these results in the context of evidence from clinical trials, meta-analyses, and observational studies evaluating phosphate-binder efficacy, safety, comparative effectiveness, and cost-effectiveness. Based on our analysis, we note a need for US Food and Drug Administration guidance regarding clinical evaluation of new phosphate binders, and we suggest that it would be in CMS' best interest to fund a clinical trial to assess whether lower versus higher phosphate concentrations improve hard clinical outcomes, and if so, whether particular phosphate binders are superior to placebo or other binders in improving these outcomes.

A DECADE OF HEALTH TECHNOLOGY ASSESSMENT IN POLAND.

OBJECTIVES: The objective of this study is to illustrate and provide a better understanding of the role of health technology assessment (HTA) processes in decision making for drug reimbursement in Poland and how this approach could be considered by other countries of limited resources. METHODS: We analyzed the evolution of the HTA system and processes in Poland over the past decade and current developments based on publicly available information. RESULTS: The role of HTA in drug-reimbursement process in Poland has increased substantially over the recent decade, starting in 2005 with the formation the Agency for Health Technology Assessment and Tariff System (AOTMiT). The key success factors in this development were effective capacity building based on the use of international expertise, the implementation of transparent criteria into the drug reimbursement processes, and the selective approach to the adoption of innovative medicines based on the cost-effectiveness threshold among other criteria. CONCLUSIONS: While Poland is regarded as a leader in Central and Eastern Europe, there is room for improvement, especially with regard to the quality of HTA processes and the consistency of HTA guidelines with reimbursement law. In the "pragmatic" HTA model use by AOTMiT, the pharmaceutical company is responsible for the preparation of a reimbursement dossier of good quality in line with HTA guidelines while the assessment team in AOTMiT is responsible for critical review of that dossier. Adoption of this model may be considered by other countries with limited resources to balance differing priorities and ensure transparent and objective access to medicines for patients who need them.

HEALTH TECHNOLOGY ASSESSMENT IN SERBIA.

OBJECTIVES: This study provides an overview of the Republic of Serbia healthcare system and describes the process of developing and conducting health technology assessment (HTA). METHODS: The authors performed pragmatic, nonsystematic literature review based on available statistical data, legislation, and studies. RESULTS: Healthcare law creates conditions that allow implementation of the principle "value for money." The institutions directly vested in the implementation of HTA are the National Health Insurance Fund (NHIF) and the Ministry of Health (MoH). There are some reflections of the efforts by NHIF and MoH toward achieving this goal. CONCLUSIONS: Despite the highly set objectives, there is still a lot of work to be done to build an adequate model to support decision-making processes to bridge the discrepancies between broadly defined rights to health care and limited resources in the country.

HEALTH TECHNOLOGY ASSESSMENT IN CENTRAL-EASTERN AND SOUTH EUROPE COUNTRIES: BOSNIA AND HERZEGOVINA.

OBJECTIVES: The aim of this study was to describe the healthcare system and health financing in Bosnia and Herzegovina and recent trends in health technology assessment (HTA) placement in the system. METHODS: A short review of PubMed published literature has been conducted using key words related to reimbursement, HTA, and health policy. We also revised legislation in Bosnia and Herzegovina published in Official Gazettes related to healthcare financing and organization. RESULTS: A deecentralized system in Bosnia and Herzegovina led to high differences in health policy. HTA has been recognized in legislation in Bosnia and Herzegovina, but it still has not been introduced in practice in full capacity. A small number of publications are found in PubMed treating these issues, but generally the problem of introduction of HTA in Bosnia and Herzegovina is lack of experts, as well as the political environment and education in this field. CONCLUSIONS: HTA in the Federation of Bosnia and Herzegovina and the Republic of Srpska has a short history because of a huge political impact in the decision-making process, decentralized system, and multiple decision makers in these regions. Challenges remain in assessments, in development of more transparent approaches in different areas of the health system in these regions, and in consistent application of appropriate standards especially in education of professionals who will provide establishment of HTA in the health system of The Federation of Bosnia and Herzegovina and the Republic of Srpska.

DEVELOPMENT OF HEALTH TECHNOLOGY ASSESSMENT IN ROMANIA.

OBJECTIVES: The aim of this study was to describe and analyze the introduction of health technology (HTA) in Romania. METHODS: Based on a review of the literature and legislative documents and personal experiences and observations, the authors describe, evaluate, and explain the background and evolution of the HTA system. RESULTS: Initiatives to introduce HTA in Romania date from the early 1990s, but real steps were taken only in 2012 when the European Union Directive 2011/24/ on the application of patients' rights in cross-border health care had to be passed into Romanian law. The main developments consist of: the establishment of a national competent authority, the development of a methodology for the rapid assessment of drugs, setting HTA as the main tool for compiling the list of medicines to be covered by the NHIF, and capacity building initiatives. One early result of HTA implementation was an updated list of reimbursed drugs, allowing Romanian patients access to new, innovative medicines. CONCLUSIONS: In Romania, HTA become an issue for all stakeholders: decision makers are interested in cost-containment, patients in obtaining the best care, and producers in receiving acceptable reimbursement remains on the health policy agenda. Further steps are envisaged, especially for international collaboration, which is considered an important factor for HTA development in Romania.

PRICING, REIMBURSEMENT, AND HEALTH TECHNOLOGY ASSESSMENT OF MEDICINAL PRODUCTS IN BULGARIA.

OBJECTIVES: The aim of this study was to investigate the analysis, discussion, and challenges of the price and reimbursement process of medicinal products in Bulgaria in the period 2000-15 and health technology assessment (HTA) role in these processes. METHODS: The dynamics of the reform, with respect to the healthcare and pharmaceutical sectors, are tracked by documentary review of regulations, articles, and reports in the European Union (EU), as well as analytical and historical analysis. RESULTS: Pricing and reimbursement processes have passed through a variety of committees between 2003 and 2012. Separate units for pricing and reimbursement of medicinal products were established in Bulgaria for the first time, in 2013, when an independent body, the National Council at Prices and Reimbursement of Medicinal Products, was set up to approve medicinal products with new international nonproprietary names (INN) for reimbursement in Bulgaria. Over the course of 2 years (2013-14), thirty-three new INNs were approved for reimbursement. In December 2015, a new HTA body was introduced, and assigned to the National Centre for Public Health and Analyses. CONCLUSIONS: Although Bulgaria has current legislation on pricing and reimbursement which is in accordance with the EU rules, there is no mechanism for reporting and monitoring these processes or the financial resources annually, so as to provide an overall objective assessment and analysis by year. Therefore, this financial assessment should become a national policy objective for the future.

INTRODUCTION OF HEALTH TECHNOLOGY ASSESSMENT FOR MEDICINES IN SLOVAKIA.

OBJECTIVES: The aim of our study was to describe approaches to health technology assessment (HTA) for medicines in the Slovak healthcare system and the related decision-making processes concerning reimbursement for medicines. METHODS: Analysis of the Slovak legislative framework related to HTA and the reimbursement process for medicines was performed. Additionally, current practices of the Working Group for Pharmacoeconomics, Clinical Outcomes and Health Technology Assessment of the Slovak Ministry of Health were evaluated. RESULTS: In Slovakia, there is always at least one treatment available in each determined therapeutic class with no co-payment. HTA is becoming an established method for the evaluation of cost-effectiveness of medicines in Slovak healthcare policy. The majority of decision makers within Slovakia support the idea of increased use of and the quality and efficiency of HTA methods. However, it is crucial to overcome several practical barriers to facilitate progress in the field of HTA in the Slovak Republic. CONCLUSIONS: It can be seen that participation within the European Network for Health Technology Assessment (EUnetHTA JA 2 and EUnetHTA JA 3 projects) has significantly improved the quality of the process of HTA in Slovakia. Further legislative activities in this field are required due to the approved strategy for European Union cooperation on HTA.

HEALTH TECHNOLOGY ASSESSMENT IN EVALUATION OF PHARMACEUTICALS IN THE CZECH REPUBLIC.

OBJECTIVES: In the Czech Republic, the health technology assessment (HTA) approaches have been implemented in evaluation of medicinal products since 2008. The aim of this study was to provide an overview of the implementation of HTA and different levels thereof in the evaluation process conducted by the State Institute for Drug Control (SUKL) and to describe the impact of HTA on the entrance of new medicinal entities into out-patient healthcare system including highly innovative and orphan drugs. METHODS: Materials supporting this overview were collected using the records in the database of administrative proceedings of SUKL, in-house standard operating procedures, and the legislation in force. Based on these sources as well as the hands-on knowledge of the current practice, a brief description of the general rules of administrative proceedings involving HTA of varying complexity was elaborated. Characteristic features of the individual types of proceedings, basic differences in the complexity of HTA employed, and its most important challenges were summarized. RESULTS: In Czech Republic, HTA in the formal administrative proceedings ensures a transparent process of introduction of new medicinal products into clinical practice and leaves space for restriction of reimbursement conditions to minimize budget impact. CONCLUSIONS: As a robust as well as pragmatic HTA methodology has been implemented by SUKL, relevant stakeholders (marketing authorization holders, Health Care Funds, clinical expert groups) are now able to influence reimbursement of new technologies.

Towards medicines regulatory authorities' quality performance improvement: value for public health.

The purpose of this article is to explore the possibility of implementing total quality management (TQM) principles in national medicines regulatory authorities in Europe to achieve all public health objectives. Bearing in mind that medicines regulation is a governmental function that serves societal objectives to protect and promote public health, measuring the effective achievement of quality objectives related to public health is of utmost importance. A generic TQM model for meeting public health objectives was developed and was tested on 10 European national medicines regulatory authorities with different regulatory performances. Participating national medicines regulatory authorities recognised all TQM factors of the proposed model in implemented systems with different degrees of understanding. An analysis of responses was performed within the framework of two established criteria-the regulatory authority's category and size. The value of the paper is twofold. First, the new generic TQM model proposes to integrate four public health objectives with six TQM factors. Second, national medicines regulatory authorities were analysed as public organisations and health authorities to develop a proper tool for assessing their regulatory performance. The paper emphasises the importance of designing an adequate approach to performance measurement of quality management systems in medicines regulatory authorities that will support their public service missions.

[MEDICAL CANNABIS].

The cannabis plant has been known to humanity for centuries as a remedy for pain, diarrhea and inflammation. Current research is inspecting the use of cannabis for many diseases, including multiple sclerosis, epilepsy, dystonia, and chronic pain. In inflammatory conditions cannabinoids improve pain in rheumatoid arthritis and:pain and diarrhea in Crohn's disease. Despite their therapeutic potential, cannabinoids are not free of side effects including psychosis, anxiety, paranoia, dependence and abuse. Controlled clinical studies investigating the therapeutic potential of cannabis are few and small, whereas pressure for expanding cannabis use is increasing. Currently, as long as cannabis is classified as an illicit drug and until further controlled studies are performed, the use of medical cannabis should be limited to patients who failed conventional better established treatment.

[The system of information concerning pharmaceuticals and its role in efficient using of medicines: opinion of medical specialists].

The issues of efficient application of pharmaceuticals by national authorities and supranational institutions are considered as important ones. The WHO recommends implementing twelve key propositions enhancing efficient application of pharmaceuticals. The development of independent information system concerning pharmaceuticals. The WHO recognizes that absence of neatly organized information system concerning pharmaceuticals information is usually spreading through different channels by manufacturers of medicines. The WHO determines admissible sources of information concerning pharmaceuticals and also requirements to content of presented information. The article presents results of survey of opinions of medical professionals about information sources concerning pharmaceuticals regulated in the Russian Federation and the WHO and also about actual information system concerning pharmaceuticals in the Russian Federation and its role in efficient application of medicines.

[The comprehensive investigation of the new psychoactive substances].

This article was designed to discuss the issues related to ensuring the methodological uniformity of investigations of the novel psychoactive substances based on the system of the newly established specialized laboratories. The authors propose the methodological approaches to the implementation of comprehensive chemical and pharmacological research including chemical, biological, and sociological studies. The main specific features of these approaches are the use of laboratory animals and the automation of in vivo experiments. Also, we discuss the use of the concrete results of the computational experiments designed to elucidate the parameters responsible for the chemical similarity of psychoactive substances. The mechanisms of their action are considered. The special emphasis is placed on the necessity of close cooperation between scientific and expert communities with a view to accumulation of the data on the newly developed and potentially harmful psychoactive substances as a basis for the efficacious prevention of their illegal trafficking.

Overdose Epidemic, Prescription Monitoring Programs, and Public Health: A Review of State Laws.

Prescription monitoring programs (PMPs), state-level databases that collect patient-specific prescription information at the time medications are dispensed, have been suggested as tools to address the overdose epidemic. We reviewed all laws in the United States (n = 25) that articulated the purposes PMPs are intended to serve. Attributes related to reducing abuse, misuse, and diversion of prescription medications appeared most commonly. Only 5 purpose statements mentioned the promotion of public health as goals of the PMP, and only 3 listed improving health care. None listed overdose prevention as a goal of the PMP.

WHO Expert Committee on Drug Dependence. Thirty-sixth report.

This report presents the recommendations of the thirty-sixth WHO Expert Committee on Drug Dependence (ECDD). The ECDD is responsible for the assessment of therapeutic usefulness, the liability to abuse and dependence and the public health and social harm of each substance under review. After receiving the advice from the Expert Committee to schedule or to amend the scheduling status of a substance, the Director-General of WHO will as appropriate, communicate the recommendations to the United Nations. The report summarizes the review of 26 substances and the Committee's recommendations for scheduling under the international drug control conventions. The report also contains updates from international bodies concerned with controlled substances, a summary of the follow-up on recommendations made at the previous Committee meeting and a summary of the discussion on improving data collection and evidence for prioritization and substance evaluation, in particular for new psychoactive substances. Issues identified for consideration at future Expert Committee meetings are also listed.