Extent of a valsartan drug shortage and its effect on antihypertensive drug use in the Canadian population: a national cross-sectional study.

BACKGROUND: Drug shortages represent a growing global problem, with potentially serious consequences to patients and the health care system. Our study investigates the impacts of a major recall and shortage of valsartan, an angiotensin receptor blocker (ARB), in July 2018 in Canada. METHODS: We conducted a time-series analysis of antihypertensive drugs dispensed in Canada between 2015 and 2019 using commercially available retail prescription data. Using autoregressive integrated moving average (ARIMA) modelling, we evaluated the change in valsartan use after the recall. We also measured the overall use of ARBs, angiotensin-converting-enzyme (ACE) inhibitors and other antihypertensive drug classes for the same period. RESULTS: After the recall in July 2018, valsartan use decreased 57.8%, from 362 231 prescriptions dispensed in June 2018 to 152 892 in September 2018 (difference = 209 339, p < 0.0001). Overall use of the ARB drug class decreased 2.0%, from 1 577 509 prescriptions dispensed in June 2018 to 1 545 591 in September 2018 (difference = 31 918, p = 0.0003), but use of non-valsartan ARBs increased 14.6%, from 1 215 278 to 1 392 699 prescriptions dispensed (difference = 177 421, p < 0.0001) in the same time frame. Although use of ACE inhibitors initially declined, this reduction was not sustained. The valsartan recall was not associated with a significant impact on use of other antihypertensive drug classes. INTERPRETATION: Our findings illustrate the impact of a major drug shortage, with the immediate and substantial reduction of valsartan dispensed and cascading effects on other ARBs, though future research is warranted to understand the consequences of such extensive shortages on clinical outcomes and health system costs. Improved policy strategies are needed to address the underlying causes of drug shortages and to mitigate their effects.

Reliance: a smarter way of regulating medical products - The IPRP survey.

Introduction: A survey was conducted among national regulatory authorities' members of the International Pharmaceutical Regulators Programme (IPRP) to collect and share experiences of reliance approaches. Reliance allows formally, or informally, one regulatory authority to use assessments made by other regulatory authorities while remaining responsible for the final decision. Reliance is an essential concept to increase the efficiency of the global regulatory oversight of medical products by national regulatory authorities.Areas covered: This article describes the findings and recommendations from the IPRP survey. It shows that reliance in the area of medical product oversight is broadly accepted. The first part presents the acceptance and reasons for accepting reliance including the need for trust, then gives examples of the most common areas for reliance, and explains the difference between unilateral or reciprocal reliance. Finally, the article analyzes the lessons learned including challenges and opportunities for reliance on regulatory authorities to facilitate patient access in their jurisdictions.Expert opinion: Regulatory reliance facilitates regulatory approvals and allows to use resources in a more efficient way and ultimately serves patients by facilitating earlier access to quality-assured, safe, and effective medicines.

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.

A Rapid Review of the Impact of Systems-Level Policies and Interventions on Population-Level Outcomes Related to the Opioid Epidemic, United States and Canada, 2014-2018.

OBJECTIVES: In the United States, rising rates of overdose deaths and recent outbreaks of hepatitis C virus and HIV infection are associated with injection drug use. We updated a 2014 review of systems-level opioid policy interventions by focusing on evidence published during 2014-2018 and new and expanded opioid policies. METHODS: We searched the MEDLINE database, consistent with the 2014 review. We included articles that provided original empirical evidence on the effects of systems-level interventions on opioid use, overdose, or death; were from the United States or Canada; had a clear comparison group; and were published from January 1, 2014, through July 19, 2018. Two raters screened articles and extracted full-text data for qualitative synthesis of consistent or contradictory findings across studies. Given the rapidly evolving field, the review was supplemented with a search of additional articles through November 17, 2019, to assess consistency of more recent findings. RESULTS: The keyword search yielded 535 studies, 66 of which met inclusion criteria. The most studied interventions were prescription drug monitoring programs (PDMPs) (59.1%), and the least studied interventions were clinical guideline changes (7.6%). The most common outcome was opioid use (77.3%). Few articles evaluated combination interventions (18.2%). Study findings included the following: PDMP effectiveness depends on policy design, with robust PDMPs needed for impact; health insurer and pharmacy benefit management strategies, pill-mill laws, pain clinic regulations, and patient/health care provider educational interventions reduced inappropriate prescribing; and marijuana laws led to a decrease in adverse opioid-related outcomes. Naloxone distribution programs were understudied, and evidence of their effectiveness was mixed. In the evidence published after our search's 4-year window, findings on opioid guidelines and education were consistent and findings for other policies differed. CONCLUSIONS: Although robust PDMPs and marijuana laws are promising, they do not target all outcomes, and multipronged interventions are needed. Future research should address marijuana laws, harm-reduction interventions, health insurer policies, patient/health care provider education, and the effects of simultaneous interventions on opioid-related outcomes.

Understanding biosimilars and its regulatory aspects across the globe: an ophthalmology perspective.

PURPOSE: This article aims to analyse the key regulatory guidelines across the globe concerning biosimilars. MATERIALS AND METHODS: Review of the current literature. RESULTS: Biosimilars are well regulated with the majority of regulators having enforced the guidelines for the development and approval, and new biosimilar drugs are appearing on the horizon to provide a therapeutic option to a wider population base because of its cost-effectiveness and proven safety. Due to their extensive analytical data, clinical data and pharmacovigilance studies, their development should not be considered similar to generic drugs. CONCLUSION: This review discusses the biosimilars, their regulation globally and their difference from generics from ophthalmic perspective.

Drug policy and Collective Health: necessary dialogues. / Política de drogas e Saúde Coletiva: diálogos necessários.

The current status of policies on illicit drugs has implications for Collective Health that need to be discussed in depth. This essay aims to explore, in light of the best evidence, the public health impact of drug policies focused on the criminalization of growing, selling, and consuming psychoactive substances. Brazil provides the context for the main analysis. The principal points addressed in this work include drugs as a social issue and the definition of the prohibitionist paradigm, evidence of the unhealthy relationship between this paradigm and the population's health, the issue of a model of care for users of psychoactive substances focused on therapeutic communities, and future paths to be explored to overcome the prohibition of illicit drugs as the principal approach to the issue. Among the main problematic elements in the repressive approach in the Brazilian context, the study highlights violence and homicides, the health impacts of incarceration and blocked access to the health system, and potential new therapies derived from currently banned psychoactive substances. As proposals for future policy changes, the study highlights decriminalization of the use, possession, and small-scale sale of drugs; the reduction of the violence and discrimination associated with policing; focus on harm reduction policies; approach to gender-related specificities; and inclusion of social variables as metrics for successful treatment of problematic drug use. In conclusion, it is relevant that the social issue and drug policy have become the object of more studies in the field of Collective Health.

A hegemonia atual das políticas de drogas ilícitas tem implicações à Saúde Coletiva que necessitam ser discutidas de forma aprofundada. Este ensaio procura explorar, à luz das melhores evidências, o impacto das políticas sobre drogas focadas na criminalização do plantio, comércio e consumo de substâncias psicoativas sobre a saúde das populações. O contexto de análise principal será o brasileiro. Os pontos principais abordados por este trabalho incluem a questão social das drogas e a definição do paradigma proibicionista, as evidências da relação insalubre entre tal paradigma e a saúde das populações, a problemática de um modelo de assistência aos usuários de substâncias psicoativas focado nas comunidades terapêuticas, e futuros caminhos a serem explorados na superação da proibição de drogas ilícitas como a principal forma de abordar a questão. Entre os principais elementos problemáticos da abordagem repressiva no contexto brasileiro podem ser destacados a violência e a mortalidade por homicídios, os impactos sanitários do encarceramento e o bloqueio de acesso ao sistema de saúde e a novas terapias derivadas de substâncias psicoativas atualmente proscritas. Como propostas de mudanças políticas futuras, ressalta-se a descriminalização do uso, posse e pequenas vendas de drogas; a redução da violência e da discriminação associadas ao policiamento; o foco em políticas de redução de danos; a abordagem das especificidades relacionadas ao gênero; incluir variáveis sociais como métrica do sucesso no tratamento do uso problemático de drogas. Concluindo, é relevante que a questão social e política das drogas se torne objeto de mais estudos no campo da Saúde Coletiva.

La hegemonía actual de las políticas de drogas ilícitas tiene implicaciones para la Salud Colectiva que necesitan discutirse profundamente. Este trabajo estudia, a la luz de las mejores evidencias, el impacto de las políticas sobre las drogas, enfocadas en la criminalización del cultivo, tráfico y consumo de sustancias psicoactivas, para la salud de la población. El contexto de análisis principal será el brasileño. Los puntos principales abordados por este trabajo incluyen: cuestión social de las drogas y la definición del paradigma prohibicionista; evidencias de la relación insana entre este paradigma y la salud de las poblaciones; así como la problemática de un modelo de asistencia a los consumidores de sustancias psicoactivas centrado en comunidades terapéuticas, y los futuros caminos que se exploran para que se supere la prohibición de las drogas ilícitas como la vía principal de abordaje de esta cuestión. Entre los elementos primordiales y problemáticos del enfoque represivo en el contexto brasileño se pueden destacar: violencia y mortalidad por homicidios; impactos sanitarios con conlleva el encarcelamiento y el bloqueo del acceso al sistema de salud; así como las nuevas terapias, derivadas de sustancias psicoactivas, actualmente proscritas. A modo de propuestas para posibles cambios políticos futuros, se resalta la descriminalización del consumo, posesión y venta de pequeñas cantidades de droga; la reducción de la violencia y discriminación, asociadas a la vigilancia policial; situar el centro de la cuestión en políticas de reducción de perjuicios para la salud; plantear las especificidades relacionadas con el género; así como incluir variables sociales como medir el éxito de los tratamientos relacionados con el consumo problemático de drogas. A modo de conclusión, es relevante que la cuestión social y política de las drogas se convierta en objeto de más estudios en el campo de la Salud Colectiva.

Diversion of Controlled Drugs in Hospitals: A Scoping Review of Contributors and Safeguards.

Drug losses and theft from the healthcare system are accelerating; hospitals are pressured to implement safeguards to prevent drug diversion. Thus far, no reviews summarize all known risks and potential safeguards for hospital diversion. Past incidents of hospital drug diversion have impacted patient and staff safety, increased hospital costs, and resulted in infectious disease outbreaks. We searched MEDLINE, Embase, PsycINFO, CINAHL, Scopus, and Web of Science databases and the gray literature for articles published between January 2005 and June 2018. Articles were included if they focused on hospital settings and discussed either: (1) drug security or accounting practices (any drug) or (2) medication errors, healthcare worker substance use disorder, or incident reports (only with reference to controlled drugs). We included 312 articles and extracted four categories of data: (1) article characteristics (eg, author location), (2) article focus (eg, clinical areas discussed), (3) contributors to diversion (eg, factors enabling drug theft), and (4) diversion safeguards. Literature reveals a large number of contributors to drug diversion in all stages of the medication-use process. All health professions and clinical units are at risk. This review provides insights into known methods of diversion and the safeguards hospitals must consider to prevent them. Careful configuration of healthcare technologies and processes in the hospital environment can reduce the opportunity for diversion. These system-based strategies broaden the response to diversion beyond that of individual accountability. Further evidence is urgently needed to address the vulnerabilities outlined in this review and prevent harm.

Assessing the Structural and Pharmacological Similarity of Newly Identified Drugs of Abuse to Controlled Substances Using Public Health Assessment via Structural Evaluation.

The US Food and Drug Administration's Center for Drug Evaluation and Research (CDER) developed an investigational Public Health Assessment via Structural Evaluation (PHASE) methodology to provide a structure-based evaluation of a newly identified opioid's risk to public safety. PHASE utilizes molecular structure to predict biological function. First, a similarity metric quantifies the structural similarity of a new drug relative to drugs currently controlled in the Controlled Substances Act (CSA). Next, software predictions provide the primary and secondary biological targets of the new drug. Finally, molecular docking estimates the binding affinity at the identified biological targets. The multicomponent computational approach coupled with expert review provides a rapid, systematic evaluation of a new drug in the absence of in vitro or in vivo data. The information provided by PHASE has the potential to inform law enforcement agencies with vital information regarding newly emerging illicit opioids.

PDA Biosimilars Workshop Report (September 27-28, 2018)-Getting It Right the First Time for Biosimilar Marketing Applications.

This workshop report summarizes the presentations, the breakout session outcomes, and the speaker panel discussions from the PDA Biosimilars Workshop held September 27-28, 2018, in Washington, DC. This format was deliberately selected for the workshop with the expectation of delivering a post-workshop paper on current best practices and existing challenges for sponsors. The event, co-chaired by Dr. Stephan Krause (AstraZeneca Biologics) and Dr. Emanuela Lacana (CDER/FDA), was attended by 140 agency and industry representatives. The workshop was separated into three major sessions P1: Regulatory Perspective, P2: Challenges in Biosimilar Development, and P3: Demonstrating Analytical Similarity. Each of the three sessions started with agency and industry presentations. Participants then split into two concurrent roundtable discussion groups to hear the answers to questions that had been provided to all participants one week prior to the event. The sessions were recorded. This paper provides consolidated answers to specific case studies for current challenges to sponsors and agencies. In addition, the panel discussion notes following each breakout roundtable session, as well as brief talk summaries of all speakers, are provided. The first session explored the challenges encountered with submission of biosimilar marketing applications from the perspectives of regulatory agencies. Expectations for a successful submission of the chemistry, manufacturing, and controls (CMC) information were described. The second session addressed high-level technical challenges and how to avoid pitfalls frequently encountered during biosimilar candidate development, including data quality expectations, creation of the final control strategy, and strategic choices necessary for candidate selection and development. Both regulatory perspectives and industry experience were shared. The last session explored the use of statistical tools to provide meaningful contributions to the demonstration of analytical similarity. The presentations highlighted common issues and practical challenges that arise during the application of statistical tools.LAY ABSTRACT: Significant challenges are still-remaining for sponsors and agencies to successfully develop and license Biosimilars. A Biosimilars Workshop was therefore held on 27-28 September 2018 in Washington, DC, to find practical solutions to the remaining challenges. The workshop planning committee with members from industry and agencies prepared specific case studies focused on some of most difficult situations. The workshop was separated into three major sessions (P1 - Regulatory Perspective; P2 - Challenges in Biosimilar Development; P3 - Demonstrating Analytical Similarity) and each session attempted to provide practical solutions to the relevant case studies. This first session explored the challenges encountered with submission of biosimilar marketing applications from the regulatory agencies' perspectives. Expectations for a successful submission of the CMC information were described. The second session addressed high-level technical challenges frequently encountered during biosimilar candidate development, including data quality expectations, the creation of the final control strategy, and strategic choices necessary for candidate selection and development. The last session explored the use of statistical tools to provide meaningful contributions to the demonstration of analytical similarity and practical challenges that arise during the application of statistical tools.

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).

"It's about bloody time": Perceptions of people who use drugs regarding drug law reform.

BACKGROUND: In Australia and elsewhere, the impacts of drug prohibition have sparked a critical dialogue about the state of current drug laws. While a range of 'experts' have offered their opinion and participation in these deliberations, the voices of the affected community have largely been excluded. This study aimed to gather the opinions and preferences of people who use drugs about the current or alternative models of drug laws, in addition to how they think drug laws could be changed Author Conflict of Interest Declaration. METHODS: In March 2018, four focus groups (n = 37) were conducted with people who were in receipt of social welfare services in Sydney, Australia, where participants were encouraged to share their views about the current drug laws, drug law reform options, and important messages to politicians. Several themes were identified through a thematic analysis. RESULTS: Models of drug law reform were often understood and expressed in language and constructs different to those commonly used by researchers. Opinions were diverse and there was no consensus on a preferred model, although discussions flowed around decriminalisation, legalisation, and a medical/prescription model; the latter being the preferred approach. Participants shared pessimistic views of the drug laws ever changing, and argued that public opinion would need to adjust for reform to succeed. Furthermore, they argued that the views of the affected community are vital to any drug law reform campaign. CONCLUSIONS: Participants affinity towards a medical/prescription approach to drug regulation was an unexpected finding. This study serves as an important example of the opinions and experiential knowledge of the affected community and this knowledge could be solicited alongside other forms of 'expertise' in drug law reform campaigns.

Política de drogas e Saúde Coletiva: diálogos necessários / Política de drogas y Salud Colectiva: diálogos necesarios / Drug policy and Collective Health: necessary dialogues

A hegemonia atual das políticas de drogas ilícitas tem implicações à Saúde Coletiva que necessitam ser discutidas de forma aprofundada. Este ensaio procura explorar, à luz das melhores evidências, o impacto das políticas sobre drogas focadas na criminalização do plantio, comércio e consumo de substâncias psicoativas sobre a saúde das populações. O contexto de análise principal será o brasileiro. Os pontos principais abordados por este trabalho incluem a questão social das drogas e a definição do paradigma proibicionista, as evidências da relação insalubre entre tal paradigma e a saúde das populações, a problemática de um modelo de assistência aos usuários de substâncias psicoativas focado nas comunidades terapêuticas, e futuros caminhos a serem explorados na superação da proibição de drogas ilícitas como a principal forma de abordar a questão. Entre os principais elementos problemáticos da abordagem repressiva no contexto brasileiro podem ser destacados a violência e a mortalidade por homicídios, os impactos sanitários do encarceramento e o bloqueio de acesso ao sistema de saúde e a novas terapias derivadas de substâncias psicoativas atualmente proscritas. Como propostas de mudanças políticas futuras, ressalta-se a descriminalização do uso, posse e pequenas vendas de drogas; a redução da violência e da discriminação associadas ao policiamento; o foco em políticas de redução de danos; a abordagem das especificidades relacionadas ao gênero; incluir variáveis sociais como métrica do sucesso no tratamento do uso problemático de drogas. Concluindo, é relevante que a questão social e política das drogas se torne objeto de mais estudos no campo da Saúde Coletiva.

La hegemonía actual de las políticas de drogas ilícitas tiene implicaciones para la Salud Colectiva que necesitan discutirse profundamente. Este trabajo estudia, a la luz de las mejores evidencias, el impacto de las políticas sobre las drogas, enfocadas en la criminalización del cultivo, tráfico y consumo de sustancias psicoactivas, para la salud de la población. El contexto de análisis principal será el brasileño. Los puntos principales abordados por este trabajo incluyen: cuestión social de las drogas y la definición del paradigma prohibicionista; evidencias de la relación insana entre este paradigma y la salud de las poblaciones; así como la problemática de un modelo de asistencia a los consumidores de sustancias psicoactivas centrado en comunidades terapéuticas, y los futuros caminos que se exploran para que se supere la prohibición de las drogas ilícitas como la vía principal de abordaje de esta cuestión. Entre los elementos primordiales y problemáticos del enfoque represivo en el contexto brasileño se pueden destacar: violencia y mortalidad por homicidios; impactos sanitarios con conlleva el encarcelamiento y el bloqueo del acceso al sistema de salud; así como las nuevas terapias, derivadas de sustancias psicoactivas, actualmente proscritas. A modo de propuestas para posibles cambios políticos futuros, se resalta la descriminalización del consumo, posesión y venta de pequeñas cantidades de droga; la reducción de la violencia y discriminación, asociadas a la vigilancia policial; situar el centro de la cuestión en políticas de reducción de perjuicios para la salud; plantear las especificidades relacionadas con el género; así como incluir variables sociales como medir el éxito de los tratamientos relacionados con el consumo problemático de drogas. A modo de conclusión, es relevante que la cuestión social y política de las drogas se convierta en objeto de más estudios en el campo de la Salud Colectiva.

The current status of policies on illicit drugs has implications for Collective Health that need to be discussed in depth. This essay aims to explore, in light of the best evidence, the public health impact of drug policies focused on the criminalization of growing, selling, and consuming psychoactive substances. Brazil provides the context for the main analysis. The principal points addressed in this work include drugs as a social issue and the definition of the prohibitionist paradigm, evidence of the unhealthy relationship between this paradigm and the population's health, the issue of a model of care for users of psychoactive substances focused on therapeutic communities, and future paths to be explored to overcome the prohibition of illicit drugs as the principal approach to the issue. Among the main problematic elements in the repressive approach in the Brazilian context, the study highlights violence and homicides, the health impacts of incarceration and blocked access to the health system, and potential new therapies derived from currently banned psychoactive substances. As proposals for future policy changes, the study highlights decriminalization of the use, possession, and small-scale sale of drugs; the reduction of the violence and discrimination associated with policing; focus on harm reduction policies; approach to gender-related specificities; and inclusion of social variables as metrics for successful treatment of problematic drug use. In conclusion, it is relevant that the social issue and drug policy have become the object of more studies in the field of Collective Health.

Pharmacovigilance in China: development and challenges.

Background Rational drug use and drug safety are becoming increasingly important concerns in China with the increasing public access to drugs and the health-care system, and this has led to the development of pharmacovigilance in China. Aim of the review To provide a brief introduction about pharmacovigilance in China in terms of system development, utilization and challenges. Method Relevant studies on pharmacovigilance related to the study aim was undertaken through literature search to synthesize the extracted data. Results The creation and evolvement of China's pharmacovigilance system spans across 30 years since 1989. The system consists of four progressing administrative layers: county, municipal, provincial and national levels. China has passed over 20 laws and regulations related to pharmacovigilance covering the processes of drug development, manufacture, distribution and use with the aim to guard drug safety. An online spontaneous self-reporting Adverse Drug Reaction (ADR) Monitoring System was established in 2003. ADRs are mainly reported by medical institutions, pharmaceutical manufacturers, and drug distributors. Currently there is no mandatory ADR reporting requirement for pharmaceutical manufacturers, and a proposed regulation under public comment will likely change this. China has started to build active pharmacovigilance surveillance programs in addition to the passive ADR reporting system. The China Food and Drug Administration has established the intensive Safety Monitoring Program and the National Adverse Drug Reaction Monitoring Sentinel Alliance Program based on electronic health records to further the efforts of ADR reporting, monitoring and analysis. Conclusion The practice of ADR monitoring and pharmacovigilance in China have made great progress. More efforts are needed both in system building, and creation of laws and regulations to strengthen the safe use of medicines.

Public Health Policy Strategies to Address the Opioid Epidemic.

Public health policy responses to the opioid epidemic require addressing both opioid supply and opioid demand. The growth in prescriptions of opioid analgesics, for example, is associated with escalating opioid overdose fatalities.1 Enhanced access to opioid agonist treatment, conversely, is required to curb demands driven by opioid use disorders. Oregon's multidimensional approaches toward opioid misuse and abuse achieved 20% reductions in opioid prescribing and a 30% reduction in the opioid overdose fatality rate.

Consumer agency in cannabis supply - Exploring auto-regulatory documents of the cannabis social clubs in Spain.

BACKGROUND: There is growing experience with the not-for-profit, consumer-driven cannabis social club (CSC) model that builds on self-supply, self-organization and harm-reduction; these are principles upon which people who use drugs (PWUD) have been engaging for decades. Recent legalization of cannabis in a number of jurisdictions and the related challenges in regulating production, sale, taxation and health-related matters have raised interest in non-commercial models of cannabis supply. The "codes of conduct" (CsoC) of CSC federations in Spain might reveal whether a consumer-based model could overcome these challenges. METHODS: To examine the content of the CSC auto-regulatory documents, an online search using key terms to identify the CsoC was conducted. Six documents were found; analysis of the main thematic categories and overarching themes was conducted. It was discussed how these corresponded to the areas of cannabis policy regulation and what the main limitations of the CSC model were. RESULTS: The CsoC detailed the rules for CSC administration, not-for-profit aims, "invitation only" and other conditions of membership, collective cultivation and security as well as for operation of the consumption venue and health-related initiatives. The themes in the CsoC overlapped with cannabis regulatory areas as outlined internationally. Concern over cannabis prices and potency was missing in the CsoC. The potential strengths of the CSC model might include safe environment for peer-delivered harm reduction practice, preventing illicit transactions, quality control, shifting economic surplus to the consumers and increased consumer responsibility. The limitations of the CSC model include high threshold, disguised motives, tax revenue and the risk of both under- and over-regulation. CONCLUSION: CSCs represent an opportunity to enhance consumer agency and responsibility. The right "to be self-supplied" with psychoactive substances can be granted to consumer associations - but authorities need to provide a framework to facilitate this voluntary self-organization, including minimum standards around public health and safety, and to involve consumers in the development of these regulations.