DRUG SAFETY

Emergency Department Use of Heart Failure-Exacerbating Medications in Patients with Chronic Heart Failure
Casey MF, Hallmark J, Chang PP, Rodgers JE, Mehta A, Chari SV, Skersick P, Bohrmann T, Goyal P and Meyer ML
Use of heart failure-exacerbating medications (HFEMs) may lead to preventable episodes of acute decompensated heart failure (HF). HFEMs use is common in patients with HF, and there may be opportunities to reduce their use from the emergency department (ED).
23rd ISoP Annual Meeting "Global Perspectives on Pharmacovigilance in the Digital Age and Advanced Therapeutics" 1-5 October 2024 Montreal, Canada
Paracetamol Dosing Errors in People Aged 12 Years and Over: An Analysis of Over 14,000 Cases Reported to an Australian Poisons Information Centre
Chidiac AS, Buckley NA, Noghrehchi F and Cairns R
Paracetamol dosing errors can cause acute liver injury, with potentially toxic doses only slightly above the therapeutic range. This study aimed to characterise unintentional paracetamol overdose reported to an Australian poisons centre, including time trends, demographics, types of dosing errors, and outcomes.
Short-Term Training, a Useful Approach for Sustainable Pharmacovigilance Knowledge Development in Tanzania, Kenya, Ethiopia and Rwanda
van Puijenbroek E, Barry A, Khaemba C, Ntirenganya L, Gebreyesus TD, Fimbo A, Minzi O, Makonnen E, Oluka M, Guantai A and Aklillu E
Continuous professional development among stakeholders involved in drug safety monitoring and surveillance is imperative in strengthening pharmacovigilance (PV) systems. The "Pharmacovigilance infrastructure and post-marketing surveillance system capacity building for regional medicine regulatory harmonization in East Africa" (PROFORMA) project aims to enhance the national PV infrastructure, post-marketing surveillance systems and clinical trial regulatory capabilities in Ethiopia, Tanzania, Kenya and Rwanda. To achieve this, training, including short-term training (STT) activities, at various levels is required. This article aims to describe the experiences of the authors during the development and implementation of STT in an attempt to improve the PV training landscape of these countries. To identify gaps, a baseline assessment of PV teaching and practices at the national medicines regulatory authorities (NMRAs) and medical universities was conducted. Five successive training sessions, tailored to each country's specific needs and regulatory environments, were conducted; three focusing on fundamental concepts in PV and two dedicated to training-of-trainers courses. The training targeted staff from PV units of the NMRAs and medical universities. Enabling participation from all four countries in the same training fostered cross-country learning and collaboration. The contribution of STT to university education and the operational methodologies within NMRAs are explored, showcasing the impact on knowledge transfer and skill development in each country. In conclusion, by investing strategically in STT activities and fostering partnerships with academic institutions and NMRAs, we demonstrated a sustainable approach to PV capacity strengthening in resource-limited settings. The success of this model underscores its potential for adoption and replication across the African continent, offering a valuable framework for strengthening drug safety regulation and ultimately protecting public health.
A Comparison of Active Pharmacovigilance Strategies Used to Monitor Adverse Events to Antiviral Agents: A Systematic Review
Ferreira-da-Silva R, Reis-Pardal J, Pinto M, Monteiro-Soares M, Sousa-Pinto B, Morato M, Polónia JJ and Ribeiro-Vaz I
The safety of antiviral agents in real-world clinical settings is crucial, as pre-marketing studies often do not capture all adverse events (AE). Active pharmacovigilance strategies are essential for detecting and characterising these AE comprehensively.
Views on the Development and Use of a New Digital Adverse Drug Event Reporting Platform in Australia: A Qualitative Study
Gebreyohannes EA, Thornton C, Thiessen M, de Vries ST, Coombs G, Hwang I and Lim R
Reporting of adverse drug events (ADEs) to regulatory authorities remains low, particularly among consumers.
Teratogenic Risk Impact and Mitigation (TRIM): Study Protocol for the Development of a Decision Support Tool to Prioritize Medications for Risk Mitigation
Winterstein AG, Ewig CLY, Wang Y, Smolinski NE, Toyserkani GA, LaCivita C, Lackey L, Eggers S, Zhou EH, Diaby V, Sarayani A, Thai T, Maro JC and Rasmussen SA
Preventing prenatal exposure to teratogenic medications is an important goal of regulatory risk mitigation efforts. In the USA, as of March 2024, 11 teratogenic medications have a required Risk Evaluation and Mitigation Strategy (REMS) program. It is unclear whether these programs target those medications with the most significant impact on public health and adverse pregnancy outcomes.
Challenges in the Implementation of EU Risk Minimisation Measures for Medicinal Products in Clinical Practice Guidelines: Mixed Methods Multi-Case Study
Møllebæk M, Gardarsdottir H, Bikou AG, Kodrič A, Silva AM, Andersen A, Kontogiorgis C, Poplavska E, Ahmadizar F, Dermiki-Gkana F, Rutkovska I, Vaz IR, Kos M, Barão P, Grupstra R, Alves TL and Almarsdóttir AB
Risk minimisation measures (RMMs) aim to ensure safe use of medicines, but their implementation in clinical practice is complicated by the diversity of stakeholders whose clinical decision making they seek to inform. Clinical practice guidelines (CPGs) are considered integral in clinical decision making.
Signals of Possibly Persistent Gustatory, Olfactory and Auditory Adverse Drug Reactions to Antibiotic Drugs: A Disproportionality Analysis Using the EudraVigilance Database
Ferraro S, Cappello E, Fornili M, Convertino I, Bonaso M, Lucenteforte E and Tuccori M
In 2018, the European Medicines Agency issued some risk minimisation measures related to unresolved adverse drug reactions (ADRs) reported for fluoroquinolones, including sensory ADRs. Spontaneous reporting databases frequently report unresolved outcomes for gustatory, olfactory and auditory (GOA) ADRs. However, such a high volume of unresolved GOA ADRs could reflect an under-investigated clinical issue or an intrinsic difficulty in the outcome assessment.
Investigation of the Role of Chemical Analysis in Causality Assessment of Herbal and Dietary Supplement-Induced Liver Injury
Halegoua-DeMarzio D, Navarro VJ, Davis A, Ahmad J, Avula B, Barnhart H, Barritt AS, Bonkovsky HL, Chen VL, Choi G, Fontana RJ, Ghabril MS, Khan I, Koh C, Odin J, Rockey DC, Rostami H, Serrano J, Sherker AH, Stolz A, Tillmann HL, Vuppalanchi R and
 The attribution of drug-induced liver injury (DILI) to specific herbal and dietary supplements (HDS) is confounded by inaccurate labels and undisclosed ingredients. The US Drug-Induced Liver Injury Network (DILIN) determines the attribution of injury to an agent through its structured expert opinion causality assessment process, but without the use of chemical analysis data of HDS. We aimed to determine the impact of chemical analysis of HDS products on prior causality assessment scores.
Disproportionality Analysis and Characterisation of Medication Errors in EudraVigilance: Exploring Findings on Sexes and Age Groups
Pera V, Kors JA, van Mulligen EM, de Wilde M, Rijnbeek PR and Verhamme KMC
While medication errors (MEs) have been studied in the European Medicines Agency's EudraVigilance, extensive characterisation and signal detection based on sexes and age groups have not been attempted.
Cardiovascular Safety of Romosozumab Compared to Commonly Used Anti-osteoporosis Medications in Postmenopausal Osteoporosis: A Systematic Review and Network Meta-analysis of Randomized Controlled Trials
Cheng SH, Chu W, Chou WH, Chu WC and Kang YN
The aim of this study was to investigate the cardiovascular safety of romosozumab in postmenopausal women with osteoporosis. Romosozumab, a monoclonal antibody targeting sclerostin, has been shown to increase bone mineral density and reduce the risk of osteoporotic fractures. However, in previous studies, romosozumab therapy was identified as a potential risk factor for cardiovascular events, particularly in patients with predisposing cardiovascular disease.
Safeguarding Patients in the AI Era: Ethics at the Forefront of Pharmacovigilance
Jain A, Salas M, Aimer O and Adenwala Z
Artificial intelligence is increasingly being used in pharmacovigilance. However, the use of artificial intelligence in pharmacovigilance raises ethical concerns related to fairness, non-discrimination, compliance, and responsibility as the central ethical principles in risk assessment and regulatory requirements. This paper explores these concerns and provides a roadmap to how to address these challenges by considering data collection, privacy protection, transparency and accountability, model training, and explainability in artificial intelligence decision making for drug safety surveillance. A number of responsible approaches have been identified including an ethics framework and best practices to enhance artificial intelligence use in healthcare. The document also recognizes some initiatives that have demonstrated the importance of ethics in artificial intelligence pharmacovigilance. Nevertheless, the major needs mentioned in this paper are transparency, accountability, data protection, and fairness, which stress the necessity of collaboration to construct a cognitive framework aimed at integrating ethical artificial intelligence into pharmacovigilance. In conclusion, innovation should be balanced with ethical responsibility to enhance public health outcomes as well as patient safety.
Qualitative Interviews with Stakeholders in Herbal Pharmacovigilance and Recommendations for Best Practices to be Applied Worldwide
Ekhart C, Wiarda SHP, van de Koppel S, Skalli S, Alghamdi W, Menniti-Ippolito F, Tangchitkhachon K, Mponda JS, Woerdenbag HJ and van Hunsel F
The use of herbal products globally is substantial, but varying definitions and regulatory frameworks have led to differences in their status as medicinal products and in approaches to monitoring their safety. This article explores the current landscape of herbal pharmacovigilance, drawing insights from interviews with global experts in the field, and offers recommendations for best practices to enhance the safety and benefit-to-harm balance of herbal products.
An Integrated Approach for Representing Knowledge on the Potential of Drugs to Cause Acute Kidney Injury
Fernández-Llaneza D, Vos RMP, Lieverse JE, Gosselt HR, Kane-Gill SL, van Gelder T, Klopotowska JE and
The recent rise in acute kidney injury (AKI) incidence, with approximately 30% attributed to potentially preventable adverse drug events (ADEs), poses challenges in evaluating drug-induced AKI due to polypharmacy and other risk factors. This study seeks to consolidate knowledge on the drugs with AKI potential from four distinct sources: (i) bio(medical) peer-reviewed journals; (ii) spontaneous reporting systems (SRS); (iii) drug information databases (DIDs); and (iv) NephroTox website. By harnessing the potential of these underutilised sources, our objective is to bridge gaps and enhance the understanding of drug-induced AKI.
Drug-Induced Hypouricemia
Ben Salem C, Agrebi M, Sahnoun D, Fathallah N and Hmouda H
Hypouricemia is defined as a serum uric acid concentration of ≤ 2.0 mg/dL or 119 μmol/L. Hypouricemia may occur secondarily to a number of underlying conditions, including severe hepatocellular disease, neoplasia, defective renal tubular reabsorption of uric acid, inherited metabolic defect in purine metabolism, and drugs. Medications are an important cause of hypouricemia. They can cause hypouricemia by a variety of mechanisms. Drug-induced hypouricemia mostly occurs as overtreatment of hyperuricemia by urate-lowering therapies including xanthine oxidase inhibitors, uricosuric agents and uricases. Drugs not used in the treatment of gout may also lead to a decrease of uric acid levels. In this literature review, medications leading to hypouricemia are summarized with regard to their mechanism of action and clinical significance.
Incidence of Idiosyncratic Drug-Induced Liver Injury Caused by Prescription Drugs
Chen VL, Rockey DC, Bjornsson ES, Barnhart H, Hoofnagle JH and
The incidence of drug-induced liver injury (DILI) is not known for most prescription medications. We aimed to estimate the incidence of DILI for commonly prescribed outpatient drugs.
The Use of Multiple Medications During Pregnancy Among an Ethnically Diverse Population in South-Eastern Melbourne: A Retrospective Analysis to Explore Potential Risks and Complications
Belsti Y, Mousa A, Jackson H, Moran LJ, Palmer KR, Dhungana RR, Callander E, Rolnik DL, Teede H and Enticott J
Medication use is increasing to treat both pre-existing and pregnancy-related medical conditions or complications. This study aims to investigate factors associated with multiple medication use during pregnancy, as well as any increased risk of pregnancy complications for women taking multiple medications.
Pharmacovigilance in the Age of Legalized Cannabis: Using Social Media to Monitor Drug-Drug Interactions Between Immunosuppressants and Cannabis-Derived Products
Allen MR, Wightman GP, Zhu Z, Poliak A, Smith DM, Dredze M and Ayers JW
A clinical trial of Epidiolex, the only US FDA-approved cannabis-derived consumer product (CDP), discovered an interaction with an immunosuppressant (tacrolimus) that led to drug toxicity, highlighting the unique intersection of prescription and commonly unregulated consumer products.
Caveats of Covariate Adjustment in Disproportionality Analysis for Best Practices
Noguchi Y, Tachi T and Yoshimura T
Spontaneous reporting systems (SRS) provide valuable data for detecting unidentified adverse events not observed in clinical trials and for conducting safety assessments that accurately reflect real-world clinical practice. With the increasing number of publications using the SRS for disproportionality analysis (DA), there is an increasing demand for a comprehensive understanding of the research limitations associated with the SRS. However, there is a lack of understanding of the caveats associated with adjusting covariates in DA of the SRS. Herein, we summarized the use of covariate adjustment and its caveats in DA. The Council for International Organizations of Medical Sciences VIII suggests considering adjustments such as stratification when they can enhance the sensitivity and/or specificity of statistical analysis. However, several database-specific and statistical caveats have been identified when adjusting for covariates derived from the SRS. Disproportionality analysis may be affected not only by reporting bias at the time of enrollment but also by sparse-data bias due to variations in the number of enrollment reports. Statistical evidence is needed to determine in which cases and to what extent sensitivity and/or specificity are affected. Nevertheless, it is important for researchers to acknowledge that certain limitations discussed in this context may be inherent and cannot be rectified. Based on this understanding, they can then make an informed decision on whether to perform a covariate adjustment.
Comparative Effectiveness and Safety of Off-Label Underdosed Direct Oral Anticoagulants in Asian Patients with Atrial Fibrillation: A Systematic Review and Meta-analysis
Mongkhon P, Singkham N, Ponok K, Liamsrijan N, Phoosa W, Phattanasobhon S, Fanning L, Senthong V and Saokaew S
Off-label underdosed direct oral anticoagulants (DOACs) are commonly utilised in Asian patients with atrial fibrillation (AF) since they are prone to bleeding with OACs. However, the efficacy and safety of off-label underdosing DOACs are controversial. This study aimed to compare the effectiveness and safety of off-label underdosed DOACs in Asian patients with AF.