Drug-induced Adverse Events

Evaluation of major adverse events of clozapine based on accordance to an international titration guideline
Ment Health Clin. 2024 Jun 3;14(3):204-211. doi: 10.9740/mhc.2024.06.204. eCollection 2024 Jun.
ABSTRACT
INTRODUCTION: Clozapine is the only antipsychotic approved for treatment-resistant schizophrenia, but without appropriate monitoring, it can be associated with potentially fatal outcomes. An International Adult Clozapine Titration Guideline categorizes patients into normal or slow metabolizers. Categorization provides clozapine titration schedules and recommends regular c-reactive protein (CRP) and clozapine concentration monitoring to reduce the risk of adverse drug reactions (ADRs). The impact of the guideline on clozapine ADRs has not been evaluated.
METHODS: A retrospective chart review assessed clozapine titrations, laboratory monitoring, ADRs, and discontinuations for clozapine-naive adult inpatients at a single center from January 1, 2013, to June 1, 2022. Each patient's cumulative weekly clozapine dosage was compared with their guideline recommended dosage to create a percent accordance. Linear logistic regression evaluated the relationship between titration speed and the presence of an ADR, while descriptive statistics analyzed laboratory monitoring.
RESULTS: Forty-three patients were included, with the majority being White males with schizophrenia. An inverse relationship existed between the last inpatient week clozapine dose percent accordance and the probability of an ADR. Nonobese patients were less likely than obese patients to experience an ADR (odds ratio = 0.17; 95% CI, 0.03-0.99). CRP and clozapine concentration monitoring was suboptimal.
DISCUSSION: Based on our small retrospective review of primarily White males, more aggressive clozapine titrations did not increase ADRs. Future studies with more diverse samples are needed and should focus on specific ADRs, which may have increased occurrence with rapid titrations. Obese patients were at higher risk of ADRs, correlating with the guideline-recommended slower titrations for these patients.
PMID:38835819 | PMC:PMC11147652 | DOI:10.9740/mhc.2024.06.204
Screening indicators to evaluate the clinical significance of drug-drug interactions in polypharmacy among older adults with psychiatric disorders: a delphi study
BMC Psychiatry. 2024 Jun 4;24(1):417. doi: 10.1186/s12888-024-05872-3.
ABSTRACT
BACKGROUND: Polypharmacy is common in older adults with psychiatric disorders, but no consensus has reached about the reliable indicators evaluating the benefits and risks of drug-drug interactions (DDIs) in polypharmacy. We aimed to identify indicators suitable for evaluating the clinical significance of DDIs in polypharmacy in older adults with psychiatric disorders.
METHODS: The online tools were used to distribute and collect the questionnaires. The Delphi method was applied to analyze experts' opinions. The degree of authority and coordination of experts were analyzed using the coefficient of variation, coefficient of coordination, expert's judgment factor, familiarity with the study content factor, and Kendall coordination coefficient. Statistical analysis was conducted using the IBM SPSS® Statistics Package version 26.0.
RESULTS: After three rounds of expert consultation, five primary and eleven secondary indicators were identified. The primary "pharmacodynamic indicator" included "severity of adverse drug reactions", "duration of adverse drug reaction", "symptom relief", "time to onset of symptomatic relief", "number of days in hospital", and "duration of medication". The secondary "pharmacokinetic indicator" contained "dosage administered" and "dosing intervals". The primary "patient tolerance indicator" contained one secondary indicator of "patient tolerability". The primary indicator "patient adherence" contained one secondary indicator of "patient adherence to medication". The primary indicator "cost of drug combination" contained one secondary indicator of "readmission". These indicators were used to determine the clinical significance of DDIs during polypharmacy.
CONCLUSIONS: The clinical significance of drug combinations should be taken into account when polypharmacy is used in the elderly. The five primary indicators and eleven secondary indicators might be preferred to evaluate their risks and benefits. Medication management in this population requires a multidisciplinary team, in which nurses play a key role. Future research should focus on how to establish efficient multidisciplinary team workflows and use functional factors to assess DDIs in polypharmacy for psychiatric disorders.
PMID:38834965 | DOI:10.1186/s12888-024-05872-3
Evaluation of the appropriateness of vancomycin therapeutic drug monitoring in the intensive care unit with a clinical pharmacy approach, a cross-sectional study
Eur J Hosp Pharm. 2024 Jun 4:ejhpharm-2023-004073. doi: 10.1136/ejhpharm-2023-004073. Online ahead of print.
ABSTRACT
OBJECTIVES: Vancomycin, a glycopeptide antibiotic has antibacterial activity against Gram-positive bacteria and is frequently used in the intensive care unit (ICU). Inappropriate therapeutic drug monitoring (TDM) of vancomycin is a common problem encountered in hospital daily practice. The aim of this study was to evaluate the appropriateness of vancomycin trough-guided TDM in patients treated in the ICU using a clinical pharmacy approach.
METHODS: The study was conducted retrospectively in patients over 18 years old who had at least one vancomycin trough level and who had received intravenous (IV) vancomycin for ≥3 days between 1 November 2020 and 1 April 2022. The study included 137 patients. Patient demographics and relevant vancomycin TDM data were collected from medical records. The appropriateness of TDM was evaluated according to the criteria established based on the monitoring recommendations specified in consensus guidelines for therapeutic drug monitoring of vancomycin published by the American Society of Health-System Pharmacists (ASHP) in 2009 and 2020.
RESULTS: Of a total of 238 vancomycin trough levels measured in patients, 32.4% were collected at an inappropriate time. When patients were evaluated in terms of TDM appropriateness according to vancomycin level ranges (<10 µg/mL, 10-20 µg/mL and >20 µg/mL), we found the appropriate TDM was significantly higher in the therapeutic range (10-20 µg/mL) (p <0.001). Of the total 238 vancomycin trough concentrations taken from patients, 77 (32.4%) were measured at an inappropriate time. This caused dose withholding, wrong adjustments and therapy failure. The total TDM appropriateness of vancomycin was significantly higher in the therapeutic range defined as 10-20 µg/mL when evaluated based on 'TDM appropriateness criteria' (p <0.001).
CONCLUSION: Our study shows that appropriate vancomycin TDM increases the likelihood of achieving target trough concentrations. Involvement of clinical pharmacists in TDM management may prevent the development of adverse reactions by ensuring appropriate sampling time and appropriate interpretation of vancomycin levels.
PMID:38834285 | DOI:10.1136/ejhpharm-2023-004073
Real-world incidences and risk factors of immune-related adverse events in patients treated with immune checkpoint inhibitors: A nationwide retrospective cohort study
Cancer Lett. 2024 Aug 1;596:216998. doi: 10.1016/j.canlet.2024.216998. Epub 2024 Jun 1.
ABSTRACT
Immune-related adverse events (irAEs) caused by immune checkpoint inhibitors (ICIs) are rare but fatal, requiring systemic steroid use. Therefore, to examine the outcomes, incidence, timing, and risk factors of ICI-associated steroid-requiring severe irAEs, we conducted a nationwide, retrospective, cohort study utilizing the Korean Health Insurance and Review Assessment database. We identified 357,010 patients with lung cancer, bladder cancer, or skin melanoma, eligible for ICI reimbursement in Korea between January 2012 to June 2020. Steroid-requiring severe irAEs following ICI treatment or treatment-emergent AEs following cytotoxic chemotherapy were defined as moderate- or high-dose steroid administration for over 2 consecutive days, along with corresponding ICD-10 codes indicating affected organ systems. The ICI-exposed group (N = 10,118) was compared to a matched cohort of 55,436 ICI-unexposed patients treated with cytotoxic chemotherapy. Incidences of acute severe irAEs requiring moderate- and high-dose steroids were higher in the ICI-exposed group (1.95% and 6.42%, respectively). The ICI-exposed group also had a higher risk of developing delayed severe irAEs requiring moderate- and high-dose steroid use (3.89% and 7.39%). Male sex, high comorbidity index, or previously diagnosed autoimmune diseases were associated with an increased risk of severe irAEs. Notably, 27.4-38.8% of the patients experienced recurrent severe irAEs after re-challenge with ICIs following moderate- or high-dose steroid use, with the severity matching the initial episode. Steroid-requiring severe irAEs were significantly more prevalent among patients exposed to ICIs than among those treated with chemotherapy in acute and delayed periods.
PMID:38830470 | DOI:10.1016/j.canlet.2024.216998
Tofacitinib in Pediatric Ulcerative Colitis: A Retrospective Multicenter Experience
Inflamm Bowel Dis. 2024 Jun 3:izae112. doi: 10.1093/ibd/izae112. Online ahead of print.
ABSTRACT
BACKGROUND: Tofacitinib has recently been approved for treatment of moderate-to-severe ulcerative colitis (UC) in adults, yet pediatric data are limited. This international multicenter study describes the effectiveness and safety of tofacitinib in pediatric UC.
METHODS: This is a retrospective review of children diagnosed with UC treated with tofacitinib from 16 pediatric centers internationally. The primary outcome was week 8 corticosteroid-free clinical remission (Pediatric Ulcerative Colitis Activity Index <10). Secondary outcomes were clinical response (≥20-point decrease in Pediatric Ulcerative Colitis Activity Index) at week 8, corticosteroid-free clinical remission at week 24, and colectomy rate and adverse safety events through to last follow-up. The primary outcome was calculated by the intention-to-treat principle.
RESULTS: We included 101 children with a mean age at diagnosis of 12.8 ± 2.8 years and a median disease duration of 20 months (interquartile range [IQR], 10-39 months). All had treatment failure with at least 1 biologic agent, and 36 (36%) had treatment failure with 3 agents. Median follow-up was 24 weeks (IQR, 16-54 weeks). Sixteen (16%) children achieved corticosteroid-free clinical remission at week 8, and an additional 30 (30%) demonstrated clinical response. Twenty (23%) of 88 children achieved corticosteroid-free clinical remission at week 24. A total of 25 (25%) children underwent colectomy by median 86 days (IQR, 36-130 days). No serious drug-related adverse events were reported; there was 1 case of herpes zoster and 2 cases of minor blood test perturbations.
CONCLUSIONS: In this largest real-life pediatric cohort to date, tofacitinib was effective in at least 16% of patients with highly refractory UC by week 8. Adverse events were minor and largely consistent with adult data.
PMID:38828483 | DOI:10.1093/ibd/izae112
Analysis of COVID-19 Vaccine Adverse Drug Reactions Reported Among Sultan Qaboos University Hospital Staff
Sultan Qaboos Univ Med J. 2024 May;24(2):216-220. doi: 10.18295/squmj.1.2024.003. Epub 2024 May 27.
ABSTRACT
OBJECTIVES: This study aimed to report any suspected adverse drug reactions (ADRs) experienced by all vaccinated staff and students in a tertiary teaching hospital following COVID-19 vaccination.
METHODS: This retrospective study was conducted during the COVID-19 vaccination campaign at Sultan Qaboos University and Hospital in Muscat, Oman, from August to September 2021. An online survey was generated and sent to all staff and students via email and text messages. An announcement was made on the hospital website with a link to the survey.
RESULTS: A total of 8,421 individuals reported being vaccinated at least once with a total of 11,468 doses administered from January to July 2021; 8,014 staff and students received the Pfizer-Biotech vaccine while 3,454 staff and students received the Oxford-AstraZeneca vaccine. The survey received a total of 3,275 responses (response rate = 38.8%). Of these, 741 individuals (22.6%) experienced an ADR after vaccination and 67.2% (n = 498) were females (P <0.001). The majority of the ADRs reported were fever and chills (19.7%) followed by localised pain and swelling at the injection site (18.8%). Other ADRs such as hair loss (0.5%) were reported, and one staff/student reported a clot in the right leg. Among the responders, 27.0% considered their ADRs as mild while 25.0% considered them as severe.
CONCLUSIONS: In the study cohort, mild symptoms of COVID-19 vaccines were reported. Females experienced more ADRs compared to males. Long-term observation of ADRs to the vaccines and follow-up monitoring should be done on subjects to preclude any unwanted effects.
PMID:38828249 | PMC:PMC11139364 | DOI:10.18295/squmj.1.2024.003
Elucidating the Mechanisms Underlying Interindividual Differences in the Onset of Adverse Drug Reactions
Biol Pharm Bull. 2024;47(6):1079-1086. doi: 10.1248/bpb.b24-00072.
ABSTRACT
Idiosyncratic drug toxicities (IDTs) pose a significant challenge; they are marked by life-threatening adverse reactions that emerge aftermarket release and are influenced by intricate genetic and environmental variations. Recent genome-wide association studies have highlighted a strong correlation between specific human leukocyte antigen (HLA) polymorphisms and IDT onset. This review provides an overview of current research on HLA-mediated drug toxicities. In the last six years, HLA-transgenic (Tg) mice have been instrumental in advancing our understanding of these underlying mechanisms, uncovering systemic immune reactions that replicate human drug-induced immune stimulation. Additionally, the potential role of immune tolerance in shaping individual differences in adverse effects highlights its relevance to the interplay between HLA polymorphisms and IDTs. Although HLA-Tg mice offer valuable insights into systemic immune reactions, further exploration is essential to decipher the intricate interactions that lead to organ-specific adverse effects, especially in organs such as the skin or liver. Navigating the intricate interplay of HLA, which may potentially trigger intracellular immune responses, this review emphasizes the need for a holistic approach that integrates findings from both animal models and molecular/cellular investigations. The overarching goal is to enhance our comprehensive understanding of HLA-mediated IDTs and identify factors shaping individual variations in drug reactions. This review aims to facilitate the development of strategies to prevent severe adverse effects, address existing knowledge gaps, and provide guidance for future research initiatives in the field of HLA-mediated IDTs.
PMID:38825461 | DOI:10.1248/bpb.b24-00072
Phase 2 Trial of VGT-309: Cathepsin-Based Near-Infrared Probe for Intraoperative Molecular Imaging
Ann Thorac Surg. 2024 May 30:S0003-4975(24)00396-5. doi: 10.1016/j.athoracsur.2024.05.019. Online ahead of print.
ABSTRACT
BACKGROUND: Advances in intraoperative molecular imaging (IMI) may improve surgical outcomes when resecting tumors in the lung. A single-center trial was conducted using VGT-309, a cathepsin-targeted near-infrared (NIR) imaging agent that causes lung nodules to fluoresce during surgery. The endpoint of this Phase 2 study was to evaluate the frequency that IMI with VGT-309 resulted in a clinically significant event (CSE): localization of pulmonary nodules, discovery of unsuspected additional cancers, or identification of positive margins.
METHODS: Patients undergoing surgical resection for known or suspected cancer in the lung received VGT-309 (0.32 mg/kg) preoperatively. During surgery, localization and resection of the nodules were performed using standard surgical techniques. NIR imaging was then used to localize nodules, seek occult lesions, and assess resection margins. Efficacy was measured by the frequency of CSEs.
RESULTS: Of the 40 patients who underwent pulmonary resection with VGT-309, 17 (42.5%) had at least 1 CSE. NIR imaging identified lesions not found by standard surgical methods in 16 participants, additional cancers not found by pre-operative imaging in 1 patient, and margins within 5 mm of the closest staple line in 2 individuals. VGT-309 performance was tested across a broad range of tumor types and commercial NIR imaging systems. VGT-309 appeared safe, well-tolerated, with no infusion reactions, and no drug-related serious adverse events.
CONCLUSIONS: This Phase 2 study demonstrated the utility of IMI with VGT-309 in localizing pulmonary nodules, recognizing synchronous lesions, and identifying positive margins. A multi-institutional study will further evaluate the efficacy of VGT-309.
PMID:38823756 | DOI:10.1016/j.athoracsur.2024.05.019
Survival analysis for AdVerse events with VarYing follow-up times (SAVVY): summary of findings and assessment of existing guidelines
Trials. 2024 May 31;25(1):353. doi: 10.1186/s13063-024-08186-7.
ABSTRACT
BACKGROUND: The SAVVY project aims to improve the analyses of adverse events (AEs) in clinical trials through the use of survival techniques appropriately dealing with varying follow-up times and competing events (CEs). This paper summarizes key features and conclusions from the various SAVVY papers.
METHODS: Summarizing several papers reporting theoretical investigations using simulations and an empirical study including randomized clinical trials from several sponsor organizations, biases from ignoring varying follow-up times or CEs are investigated. The bias of commonly used estimators of the absolute (incidence proportion and one minus Kaplan-Meier) and relative (risk and hazard ratio) AE risk is quantified. Furthermore, we provide a cursory assessment of how pertinent guidelines for the analysis of safety data deal with the features of varying follow-up time and CEs.
RESULTS: SAVVY finds that for both, avoiding bias and categorization of evidence with respect to treatment effect on AE risk into categories, the choice of the estimator is key and more important than features of the underlying data such as percentage of censoring, CEs, amount of follow-up, or value of the gold-standard.
CONCLUSIONS: The choice of the estimator of the cumulative AE probability and the definition of CEs are crucial. Whenever varying follow-up times and/or CEs are present in the assessment of AEs, SAVVY recommends using the Aalen-Johansen estimator (AJE) with an appropriate definition of CEs to quantify AE risk. There is an urgent need to improve pertinent clinical trial reporting guidelines for reporting AEs so that incidence proportions or one minus Kaplan-Meier estimators are finally replaced by the AJE with appropriate definition of CEs.
PMID:38822392 | DOI:10.1186/s13063-024-08186-7
MathEagle: Accurate prediction of drug-drug interaction events via multi-head attention and heterogeneous attribute graph learning
Comput Biol Med. 2024 Jul;177:108642. doi: 10.1016/j.compbiomed.2024.108642. Epub 2024 May 27.
ABSTRACT
BACKGROUND: Drug-drug interaction events influence the effectiveness of drug combinations and can lead to unexpected side effects or exacerbate underlying diseases, jeopardizing patient prognosis. Most existing methods are restricted to predicting whether two drugs interact or the type of drug-drug interactions, while very few studies endeavor to predict the specific risk levels of side effects of drug combinations.
METHODS: In this study, we propose MathEagle, a novel approach to predict accurate risk levels of drug combinations based on multi-head attention and heterogeneous attribute graph learning. Initially, we model drugs and three distinct risk levels between drugs as a heterogeneous information graph. Subsequently, behavioral and chemical structure features of drugs are utilized by message passing neural networks and graph embedding algorithms, respectively. Ultimately, MathEagle employs heterogeneous graph convolution and multi-head attention mechanisms to learn efficient latent representations of drug nodes and estimates the risk levels of pairwise drugs in an end-to-end manner.
RESULTS: To assess the effectiveness and robustness of the model, five-fold cross-validation, ablation experiments, and case studies were conducted. MathEagle achieved an accuracy of 85.85 % and an AUC of 0.9701 on the drug risk level prediction task and is superior to all comparative models. The MathEagle predictor is freely accessible at http://120.77.11.78/MathEagle/.
CONCLUSIONS: The experimental results indicate that MathEagle can function as an effective tool for predicting accurate risk of drug combinations, aiding in guiding clinical medication, and enhancing patient outcomes.
PMID:38820777 | DOI:10.1016/j.compbiomed.2024.108642
Clinical Features and Risk Factors for Drug-Induced Liver Injury: A Retrospective Study From China
Clin Ther. 2024 May 30:S0149-2918(24)00106-1. doi: 10.1016/j.clinthera.2024.04.014. Online ahead of print.
ABSTRACT
PURPOSE: With the prolongation of human life expectancy and the outbreak of COVID-19, antineoplastic agents, anti-infective drugs, and cardiovascular system drugs have been widely applied, resulting in a growing incidence of drug-induced liver injury (DILI) year by year. This study aimed to investigate signals, clinical characteristics, and risk factors in patients with liver injury.
METHODS: A retrospective analysis was conducted on inpatients clinically diagnosed with DILI from 2019 to 2021 in one tertiary hospital in mainland China. The hepatic biochemical indices, clinical manifestations and suspected drugs of the patients were counted. We determined causality assessed by the Roussel Uclaf Causality Assessment Method in patients that the biochemistry met the diagnostic criteria recommended by the International Serious Adverse Events Consortium and compared them with contemporaneous patients diagnosed as DILI but with hepatic biochemical abnormalities only to identify the injure types and risk factors for DILI.
FINDINGS: A total of 1167 patients from 2639 initial participants with DILI were included. According to the injured target cells, it can be divided into hepatocellular injury type 351 cases (30.08%), cholestatic injury type 97 cases (8.31%), mixed injury type 27 cases (2.31%), and biochemical abnormal only type 692 cases (59.30%). It involved 1738 cases of suspected drugs, 349 drugs, and the top 3 drug categories were antineoplastic agents, anti-infectives, and traditional Chinese medicines, with Cyclophosphamide, Atorvastatin, and Liuzasulfapyridine as the top 3 in order of ranking. The main symptoms of patients were darker urine, decreased appetite, and yellow sclera. The overall prognosis of patients with DILI was favorable, with 280 recovered cases (23.99%), 691 improved cases (59.21%), 189 not improved cases (16.20%), and 7 deaths (0.60%). There were significant differences in gender, age, malignancy, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total bilirubin, gamma-glutamyltransferase, albumin, international normalized ratio, and prognosis among patients with different injury types (P < 0.05). Multiple logistic regression analysis showed that female (odds ratio [OR] = 1.897, P < 0.001), alcohol use (OR = 1.905, P = 0.001), malignancy (OR = 0.417, P < 0.001), and pregnancy (OR = 0.201, P = 0.011) were independent factors influencing DILI.
IMPLICATIONS: For most patients with liver injury, the manifestations are mild elevation of liver biochemistry without other symptoms (biochemical abnormal only type). The rest of the patients are predominantly of the hepatocellular injury type. Female and alcohol abuse patients are the risk factors of DILI, reminding clinicians to strengthen education on safe drug use, give individualized treatment, and regularly monitor liver function indexes in the patients.
PMID:38821767 | DOI:10.1016/j.clinthera.2024.04.014
Can Adverse Event Patterns Inform Shared Decision-Making in ADHD Treatment? A Systematic Review of Evidence From Registration Trials for FDA-Approved Treatments in Adults
J Psychiatr Pract. 2024 May 1;30(3):172-180. doi: 10.1097/PRA.0000000000000784.
ABSTRACT
INTRODUCTION: Adult patients and clinicians are faced with several pharmacological options to manage attention-deficit/hyperactivity disorder (ADHD). If types or rates of adverse experiences vary among these options, these differences could inform the shared decision-making process.
METHODS: To discern differentiating evidence-based patterns of risk, we analyzed data from FDA package labels for drugs approved to treat adult ADHD and reports from the registration trials used to create these labels. Three analyses of adverse effects were conducted: placebo-corrected occurrence at rates of 1 in 5, 10, and 20 participants, association with discontinuation, and uniqueness of occurrence within the treatment options.
RESULTS: Among the 7 agents approved to treat adult ADHD, the number of types of side effects experienced during a mix of fixed and flexible-dose studies was greatest among the nonstimulant medications, but the stimulant medications had higher rates of occurrence of side effects. The minimum frequency at which all medications had adverse events was 1 in 10 participants. Overall discontinuation rates did not differ among the stimulant medications nor between stimulants and nonstimulants.
DISCUSSION: To our knowledge, this is the first study to compile and compare data from all FDA registration trials for medications approved to treat adult ADHD. This article describes a process by which readily available adverse event reporting data can be used as a tool to inform shared clinical decision-making. While differences in the methodology and outcome reporting of the trials included may limit generalizability, the number of individual patients included and the completeness of the discontinuation data can be used to inform discussions with patients about the relative likelihood of adverse experiences and other patient concerns.
PMID:38819241 | DOI:10.1097/PRA.0000000000000784
Prescribing changes following fluoroquinolone safety warning
Drug Ther Bull. 2024 May 30:dtb-2024-000035. doi: 10.1136/dtb.2024.000035. Online ahead of print.
NO ABSTRACT
PMID:38816185 | DOI:10.1136/dtb.2024.000035
Use of artificial intelligence chatbots in clinical management of immune-related adverse events
J Immunother Cancer. 2024 May 30;12(5):e008599. doi: 10.1136/jitc-2023-008599.
ABSTRACT
BACKGROUND: Artificial intelligence (AI) chatbots have become a major source of general and medical information, though their accuracy and completeness are still being assessed. Their utility to answer questions surrounding immune-related adverse events (irAEs), common and potentially dangerous toxicities from cancer immunotherapy, are not well defined.
METHODS: We developed 50 distinct questions with answers in available guidelines surrounding 10 irAE categories and queried two AI chatbots (ChatGPT and Bard), along with an additional 20 patient-specific scenarios. Experts in irAE management scored answers for accuracy and completion using a Likert scale ranging from 1 (least accurate/complete) to 4 (most accurate/complete). Answers across categories and across engines were compared.
RESULTS: Overall, both engines scored highly for accuracy (mean scores for ChatGPT and Bard were 3.87 vs 3.5, p<0.01) and completeness (3.83 vs 3.46, p<0.01). Scores of 1-2 (completely or mostly inaccurate or incomplete) were particularly rare for ChatGPT (6/800 answer-ratings, 0.75%). Of the 50 questions, all eight physician raters gave ChatGPT a rating of 4 (fully accurate or complete) for 22 questions (for accuracy) and 16 questions (for completeness). In the 20 patient scenarios, the average accuracy score was 3.725 (median 4) and the average completeness was 3.61 (median 4).
CONCLUSIONS: AI chatbots provided largely accurate and complete information regarding irAEs, and wildly inaccurate information ("hallucinations") was uncommon. However, until accuracy and completeness increases further, appropriate guidelines remain the gold standard to follow.
PMID:38816231 | DOI:10.1136/jitc-2023-008599
Deprescribing: An umbrella review
Acta Pharm. 2024 May 30;74(2):249-267. doi: 10.2478/acph-2024-0011. Print 2024 Jun 1.
ABSTRACT
This umbrella review examined systematic reviews of deprescribing studies by characteristics of intervention, population, medicine, and setting. Clinical and humanistic outcomes, barriers and facilitators, and tools for deprescribing are presented. The Medline database was used. The search was limited to systematic reviews and meta-analyses published in English up to April 2022. Reviews reporting deprescribing were included, while those where depre-scribing was not planned and supervised by a healthcare professional were excluded. A total of 94 systematic reviews (23 meta--analyses) were included. Most explored clinical or humanistic outcomes (70/94, 74 %); less explored attitudes, facilitators, or barriers to deprescribing (17/94, 18 %); few focused on tools (8/94, 8.5 %). Reviews assessing clinical or humanistic outcomes were divided into two groups: reviews with deprescribing intervention trials (39/70, 56 %; 16 reviewing specific deprescribing interventions and 23 broad medication optimisation interventions), and reviews with medication cessation trials (31/70, 44 %). Deprescribing was feasible and resulted in a reduction of inappropriate medications in reviews with deprescribing intervention trials. Complex broad medication optimisation interventions were shown to reduce hospitalisation, falls, and mortality rates. In reviews of medication cessation trials, a higher frequency of adverse drug withdrawal events underscores the importance of prioritizing patient safety and exercising caution when stopping medicines, particularly in patients with clear and appropriate indications.
PMID:38815201 | DOI:10.2478/acph-2024-0011
Vascular Endothelial Growth Factor Receptor Inhibitors for Recurrent or Metastatic Adenoid Cystic Carcinoma: A Systematic Review and Meta-Analysis
JAMA Otolaryngol Head Neck Surg. 2024 May 30. doi: 10.1001/jamaoto.2024.1177. Online ahead of print.
ABSTRACT
IMPORTANCE: There is no systemic therapy for recurrent or metastatic adenoid cystic carcinoma (ACC) approved by the US Food and Drug Administration.
OBJECTIVE: To examine the efficacy, safety, and tolerability of vascular endothelial growth factor receptor (VEGFR) inhibitors in recurrent or metastatic ACC.
DATA SOURCES: PubMed, Embase, and Cochrane Library were systematically searched for studies of VEGFR inhibitors in recurrent or metastatic ACC from database inception to August 31, 2023.
STUDY SELECTION: Inclusion criteria were prospective clinical trials of recurrent or metastatic ACC treated with VEGFR inhibitors, reporting at least 1 outcome of interest specifically for ACC. Of 1963 identified studies, 17 (0.9%) met inclusion criteria.
DATA EXTRACTION AND SYNTHESIS: The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) reporting guideline was followed to extract data. Data were pooled using a random-effects generalized linear mixed model with 95% CIs.
MAIN OUTCOMES AND MEASURES: The primary efficacy outcome was best overall response to VEGFR inhibitors, including objective response, stable disease, or progressive disease (PD). Safety and tolerability outcomes included incidence of grade 3 or higher adverse events, rates of exit from trial due to PD or drug-related toxic effects, and dose reduction rate (DRR).
RESULTS: A total of 17 studies comprising 560 patients with recurrent or metastatic ACC treated with 10 VEGFR inhibitors were included. The objective response rate was 6% (95% CI, 3%-12%; I2 = 71%) and stable disease was the most frequent best overall response (82%; 95% CI, 74%-87%; I2 = 67%). The 6-month disease control (defined as objective response and stable disease) rate was 54% (95% CI, 45%-62%; I2 = 52%). The rate of grade 3 or higher adverse events was 53% (95% CI, 42%-64%; I2 = 81%) and of DRR was 59% (95% CI, 40%-76%). Most patients (57%; 95% CI, 44%-70%; I2 = 83%) continued therapy until PD; 21% (95% CI, 15%-28%; I2 = 62%) of patients suspended therapy for toxic effects. In subgroup analysis by specific VEGFR inhibitor, the objective response rate was 14% (95% CI, 7%-25%; I2 = 0%), stable disease rate was 76% (95% CI, 63%-85%; I2 = 0%), proportion treated until PD was 61% (95% CI, 14%-94%; I2 = 94%), and DRR was 78% (95% CI, 66%-87%; I2 = 39%) with lenvatinib. Corresponding axitinib results were objective response rate of 8% (95% CI, 4%-15%; I2 = 0%) and stable disease rate of 85% (95% CI, 72%-92%; I2 = 69%), with 73% (95% CI, 63%-82%; I2 = 0%) of patients treated until PD, and the DRR was 22% (95% CI, 12%-38%; I2 = 77%). Rivoceranib had the highest objective response rate (24%; 95% CI, 7%-57%) but high heterogeneity among studies (I2 = 95%) and the lowest rate of patients who continued therapy until PD (35%; 95% CI, 20%-55%; I2 = 90%).
CONCLUSIONS AND RELEVANCE: This systematic review and meta-analysis found that VEGFR inhibitors were associated with high rates of disease stabilization in recurrent or metastatic ACC. Of 10 included VEGFR inhibitors, lenvatinib and axitinib were associated with the best combined and consistent efficacy, safety, and tolerability profiles, substantiating their inclusion in treatment guidelines.
PMID:38814585 | DOI:10.1001/jamaoto.2024.1177
A randomized, double-blinded, phase 2 trial of EDP1815, an oral immunomodulatory preparation of <em>Prevotella histicola</em>, in adults with mild-to-moderate plaque psoriasis
Front Med (Lausanne). 2024 May 15;11:1292406. doi: 10.3389/fmed.2024.1292406. eCollection 2024.
ABSTRACT
BACKGROUND: Psoriasis is a chronic inflammatory skin disease. EDP1815 is an oral, gut-restricted preparation of non-live Prevotella histicola, the first of a new immunomodulatory therapeutic class targeting the small intestine to generate systemic anti-inflammatory responses.
OBJECTIVE: To evaluate safety and efficacy of EDP1815 in mild-to-moderate psoriasis in a proof-of-concept study.
METHODS: A phase 2, multicenter, randomized, double-blinded, placebo-controlled, parallel-group study with a 16-week treatment period and up to 24 weeks of follow-up. Participants were randomized to receive 1, 4, or 10 capsules daily.
RESULTS: EDP1815 was well tolerated with comparable rates of treatment-emergent adverse events to placebo, and no drug-related serious adverse events. Clinically meaningful responses to EDP1815, defined as at least 50% reduction in Psoriasis Area and Severity Index (PASI-50) at week 16, were observed in all 3 cohorts, statistically significant in the 1-capsule (29.7%; P = 0.048) and 4-capsule (31.9%; P = 0.022) groups, compared with placebo (12.1%). Among EDP1815-treated PASI-50 responders at week 16, 60% (18/30) maintained or improved off-treatment responses at week 40.
LIMITATIONS: Continued off-treatment improvement past 16 weeks shows potential for greater therapeutic benefit that was not assessed.
CONCLUSION: EDP1815 was well-tolerated with a placebo-like safety profile, and had meaningful efficacy outcomes in psoriasis, validating this novel immunomodulatory approach.
CLINICAL TRIAL REGISTRATION: https://www.clinicaltrials.gov/search?term=NCT04603027, identifier NCT04603027.
PMID:38813388 | PMC:PMC11133679 | DOI:10.3389/fmed.2024.1292406
Drug induced gingival enlargement - phenytoin: an overview and case report
J Surg Case Rep. 2024 May 28;2024(5):rjae304. doi: 10.1093/jscr/rjae304. eCollection 2024 May.
ABSTRACT
Gingival enlargement is a side effect of several different medication, including immunosuppressants, anticonvulsants, and calcium channel blockers. It is an inflammatory response that starts when plaque and calculus build up on the tooth surface. The most prevalent long-term neurological condition affecting people is epilepsy. In affluent nations, the prevalence of epilepsy is ~ 1%, whereas in less developed countries, it may >2%. The preferred medication for the condition, phenytoin, has major side effects include gingival enlargement. In addition to being visually disfiguring, this enlargement frequently affects speech, chewing and eating. Furthermore, those with poor dental hygiene, causes disabilities with motor coordination and muscular limitations leading to mental disability and physical impairments are more prone to periodontal disease. This article enlightened the mechanism of drug induced gingival enlargement clinically, microbiologically, and surgically.
PMID:38812578 | PMC:PMC11132884 | DOI:10.1093/jscr/rjae304
Efficacy and safety of anlotinib in patients with desmoid fibromatosis: a retrospective analysis
Front Oncol. 2024 May 14;14:1399574. doi: 10.3389/fonc.2024.1399574. eCollection 2024.
ABSTRACT
INTRODUCTION: Desmoid fibromatosis is an aggressive fibroblastic neoplasm with a high propensity for local recurrence. Targeted therapy for Desmoid fibromatosis represents a novel avenue in systemic treatment. Anlotinib, a novel multitargeted angiogenesis inhibitor, represents a novel approach for targeted therapy. Therefore, this study aims to assess the efficacy and safety of anlotinib in patients with Desmoid fibromatosis.
METHODS: We retrospectively gathered the clinical medical records of Desmoid fibromatosis patients who underwent anlotinib treatment between June 2019 and November 2023 at our center. Anlotinib was initiated at a daily dose of 12 mg and adjusted based on drug-related toxicity. Tumor response was evaluated using the Response Evaluation Criteria in Solid Tumors 1.1 criteria. Progression-free survival served as the primary endpoint and was analyzed utilizing the Kaplan-Meier method.
RESULTS: In total, sixty-six consecutive patients were enrolled. No patients achieved a complete response; however, fourteen patients (21.21%) exhibited a partial response, while forty-six patients (70%) experienced disease stability. Progressive disease was observed in 6 patients (9.10%), and the progression-free survival rates at 12 and 36months were 89.71% and 82.81%, respectively. The disease control rate was 90.91%, while the objective response rate was 21.21%.
CONCLUSION: Anlotinib proves effective in managing recurrent and symptomatic patients with Desmoid fibromatosis. However, the toxicity profile of anlotinib presents a higher risk of Hand-Foot Skin Reaction and hypertension. Therefore, given that 41.67% of patients were subjected to dose adjustments associated with the initial dose of 12 mg, implementing dosage reductions may help balance efficacy with side effects.
PMID:38807768 | PMC:PMC11130419 | DOI:10.3389/fonc.2024.1399574
Adverse events reporting of XPO1 inhibitor - selinexor: a real-word analysis from FAERS database
Sci Rep. 2024 May 28;14(1):12231. doi: 10.1038/s41598-024-62852-z.
ABSTRACT
As the world's first oral nuclear export inhibitor, selinexor is increasingly being used in clinical applications for malignant tumors. However, there is no extensive exploration on selinexor's adverse events (ADEs), necessitating a real-word assessment of its clinical medication safety. FAERS data (July 2019-June 2023) were searched for selinexor ADE reports across all indications. Use the system organ class (SOC) and preferred terms (PT) from the medical dictionary for regulatory activities (MedDRA) to describe, categorize, and statistic ADEs. Disproportionality analysis was employed through calculation of reporting odds ratio (ROR) and proportional reporting ratio (PRR). Based on total of 4392 selinexor related ADE reports as the primary suspect (PS), of which 2595 instances were severe outcomes. The predominant ADEs included gastrointestinal disorders, myelosuppression symptoms, and various nonspecific manifestations. 124 signals associated with selinexor ADE were detected, and 10 of these top 15 signals were not included into the instructions. Our study provides real-world evidence regarding the drug safety of selinexor, which is crucial for clinicians to safeguard patients' health.
PMID:38806549 | DOI:10.1038/s41598-024-62852-z