Changes in Waivered Clinicians Prescribing Buprenorphine and Prescription Volume by Patient Limit.

This study uses data from a Drug Enforcement Administration list of Drug Addiction Treatment Act (DATA)­waivered clinicians to examine trends in DATA-waivered clinicians' active participation in prescribing buprenorphine overall and by patient limits between January 2017 and May 2021.

Association of FDA Mandate Limiting Acetaminophen (Paracetamol) in Prescription Combination Opioid Products and Subsequent Hospitalizations and Acute Liver Failure.

Importance: In January 2011, the US Food and Drug Administration (FDA) announced a mandate to limit acetaminophen (paracetamol) to 325 mg/tablet in combination acetaminophen and opioid medications, with manufacturer compliance required by March 2014. Objective: To assess the odds of hospitalization and the proportion of acute liver failure (ALF) cases with acetaminophen and opioid toxicity prior to and after the mandate. Design, Setting, and Participants: This interrupted time-series analysis used hospitalization data from 2007-2019 involving ICD-9/ICD-10 codes consistent with both acetaminophen and opioid toxicity from the National Inpatient Sample (NIS), a large US hospitalization database, and ALF cases from 1998-2019 involving acetaminophen and opioid products from the Acute Liver Failure Study Group (ALFSG), a cohort of 32 US medical centers. For comparison, hospitalizations and ALF cases consistent with acetaminophen toxicity alone were extracted from the NIS and ALFSG. Exposures: Time prior to and after the FDA mandate limiting acetaminophen to 325 mg in combination acetaminophen and opioid products. Main Outcomes and Measures: Odds of hospitalization involving acetaminophen and opioid toxicity and percentage of ALF cases from acetaminophen and opioid products prior to and after the mandate. Results: In the NIS, among 474 047 585 hospitalizations from Q1 2007 through Q4 2019, there were 39 606 hospitalizations involving acetaminophen and opioid toxicity; 66.8% of cases were among women; median age, 42.2 (IQR, 28.4-54.1). In the ALFSG, from Q1 1998 through Q3 2019, there were a total of 2631 ALF cases, of which 465 involved acetaminophen and opioid toxicity; 85.4% women; median age, 39.0 (IQR, 32.0-47.0). The predicted incidence of hospitalizations 1 day prior to the FDA announcement was 12.2 cases/100 000 hospitalizations (95% CI, 11.0-13.4); by Q4 2019, it was 4.4/100 000 hospitalizations (95% CI, 4.1-4.7) (absolute difference, 7.8/100 000 [95% CI, 6.6-9.0]; P < .001). The odds of hospitalizations with acetaminophen and opioid toxicity increased 11%/y prior to the announcement (odds ratio [OR], 1.11 [95% CI, 1.06-1.15]) and decreased 11%/y after the announcement (OR, 0.89 [95% CI, 0.88-0.90]). The predicted percentage of ALF cases involving acetaminophen and opioid toxicity 1 day prior to the FDA announcement was 27.4% (95% CI, 23.3%-31.9%); by Q3 2019, it was 5.3% (95% CI, 3.1%-8.8%) (absolute difference, 21.8% [95% CI, 15.5%-32.4%]; P < .001). The percentage of ALF cases involving acetaminophen and opioid toxicity increased 7% per year prior to the announcement (OR, 1.07 [95% CI, 1.03-1.1]; P < .001) and decreased 16% per year after the announcement (OR, 0.84 [95% CI, 0.77-0.92]; P < .001). Sensitivity analyses confirmed these findings. Conclusions and Relevance: The FDA mandate limiting acetaminophen dosage to 325 mg/tablet in prescription acetaminophen and opioid products was associated with a statistically significant decrease in the yearly rate of hospitalizations and proportion per year of ALF cases involving acetaminophen and opioid toxicity.

Prevalence of antibiotics prescription amongst patients with and without COVID-19 in low- and middle-income countries: a systematic review and meta-analysis.

Antimicrobial resistance (AMR) poses a substantial risk to public health. In low-income and middle-income (LMICs) nations, the impact of AMR is significantly more severe. The absence of data from low-income countries (LMICs) causes this topic to be frequently overlooked. Additionally, the COVID-19 pandemic could make the AMR issue even worse. Earlier guidelines recommended antibiotic use in patients with COVID-19, even in those without bacterial coinfection. This study aims to investigate the proportion of antibiotic prescriptions in LMICs among patients with and without coronavirus disease-2019 (COVID-19), the proportion of inappropriate antibiotics, and multi-antibiotic prescribing. We followed the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA). We retrieved data through online databases, including PubMed, Scopus, and ScienceDirect. Amongst COVID-19 patients, the meta-analytic estimate of antibiotic prescription was 0.80 (95% CI: 0.72-0.88), whereas antibiotic use among patients with non-COVID-19 infections was 0.54 (95% CI: 0.49-0.58). Half of those prescribed antibiotics (0.52, 95% CI: 0.32-0.72) are inappropriate prescriptions. In addition, we found that one-third of antibiotics prescriptions consisted of more than one antibiotic (0.32, 95% CI: 0.21-0.43). In conclusion, antibiotics are highly prescribed across LMICs, and their use is increased in patients with COVID-19. Amongst those prescriptions, inappropriate and multiple use was not uncommon. This study has several limitations, as it included two studies in an ambulatory setting, and some of the studies included in the analysis were conducted on a small scale. Nevertheless, our findings suggest that urgent action to improve prescribing practices is essential.

How can we optimise the pharmaceutical analysis of radiopharmaceutical pediatric prescriptions?

OBJECTIVES: In France, dispensation is defined by the validation of a prescription associated with a pharmaceutical analysis, preparation of medication and provision of information necessary for proper use. There are very few data available in the literature that describe prescription analysis modality in radiopharmacy. The aim was to secure a place for paediatric prescription analysis in radiopharmacy by designing a flow chart validated by experts. METHODS: Experts from different disciplines and health setups (ie, public, private) were selected to represent the various paediatric patient care processes. A review of the literature on pharmaceutical analysis and paediatric prescription in radiopharmacy was conducted. A Delphi approach comprising two rounds (Google Form survey) was used to validate the flow chart. Answers were graded according to a nine-point Likert scale for agreement. Open-ended questions allowed experts to comment on the propositions. A consensus between experts was reached if more than 70% of the experts agreed on an item and fewer than 30% disagreed. RESULTS: Sixty-five experts were solicited: two oncopaediatricians, three nuclear medicine physicians, 46 radiopharmacists, three residents in radiopharmacy, one hospital pharmacist, five medical physicists, one pharmacy technician, two X-ray technicians and two patients who are pharmacists. The first round survey included a draft of the flow chart: 31 experts answered (48%). All professional disciplines were represented except pharmacy technician. The second round survey was sent with a new flow chart that had been improved by the experts' comments. After 3 weeks, 18 answers were obtained (28%). After the first round, consensus was obtained for each item. Experts gave a total of 97 comments. The second flow chart had three steps: regulatory aspects, patient data, and radiopharmaceutical data, and it was accompanied by descriptive text explaining the field of application. CONCLUSION: The resulting flow chart will secure the pharmaceutical analysis step for this special patient population.

Association of Race and Ethnicity With Prescription of SGLT2 Inhibitors and GLP1 Receptor Agonists Among Patients With Type 2 Diabetes in the Veterans Health Administration System.

Importance: Novel therapies for type 2 diabetes can reduce the risk of cardiovascular disease and chronic kidney disease progression. The equitability of these agents' prescription across racial and ethnic groups has not been well-evaluated. Objective: To investigate differences in the prescription of sodium-glucose cotransporter-2 inhibitors (SGLT2i) and glucagon-like peptide-1 receptor agonists (GLP-1 RA) among adult patients with type 2 diabetes by racial and ethnic groups. Design, Setting, and Participants: Cross-sectional analysis of data from the US Veterans Health Administration's Corporate Data Warehouse. The sample included adult patients with type 2 diabetes and at least 2 primary care clinic visits from January 1, 2019, to December 31, 2020. Exposures: Self-identified race and self-identified ethnicity. Main Outcomes and Measures: The primary outcomes were prevalent SGLT2i or GLP-1 RA prescription, defined as any active prescription during the study period. Results: Among 1 197 914 patients (mean age, 68 years; 96% men; 1% American Indian or Alaska Native, 2% Asian, Native Hawaiian, or Other Pacific Islander, 20% Black or African American, 71% White, and 7% of Hispanic or Latino ethnicity), 10.7% and 7.7% were prescribed an SGLT2i or a GLP-1 RA, respectively. Prescription rates for SGLT2i and GLP-1 RA, respectively, were 11% and 8.4% among American Indian or Alaska Native patients; 11.8% and 8% among Asian, Native Hawaiian, or Other Pacific Islander patients; 8.8% and 6.1% among Black or African American patients; and 11.3% and 8.2% among White patients, respectively. Prescription rates for SGLT2i and GLP-1 RA, respectively, were 11% and 7.1% among Hispanic or Latino patients and 10.7% and 7.8% among non-Hispanic or Latino patients. After accounting for patient- and system-level factors, all racial groups had significantly lower odds of SGLT2i and GLP-1 RA prescription compared with White patients. Black patients had the lowest odds of prescription compared with White patients (adjusted odds ratio, 0.72 [95% CI, 0.71-0.74] for SGLT2i and 0.64 [95% CI, 0.63-0.66] for GLP-1 RA). Patients of Hispanic or Latino ethnicity had significantly lower odds of prescription (0.90 [95% CI, 0.88-0.93] for SGLT2i and 0.88 [95% CI, 0.85-0.91] for GLP-1 RA) compared with non-Hispanic or Latino patients. Conclusions and Relevance: Among patients with type 2 diabetes in the Veterans Health Administration system during 2019 and 2020, prescription rates of SGLT2i and GLP-1 RA medications were low, and individuals of several different racial groups and those of Hispanic ethnicity had statistically significantly lower odds of receiving prescriptions for these medications compared with individuals of White race and non-Hispanic ethnicity. Further research is needed to understand the mechanisms underlying these differences in rates of prescribing and the potential relationship with differences in clinical outcomes.

Duplicate Prescription Rates of Long-Acting Bronchodilator Inhalers.

Background: Long-acting bronchodilator inhalers are widely used with or without inhaled corticosteroids (ICs) by patients with lung diseases. In Israel alone, there are 21 inhalers containing long-acting ß2 agonists (LABAs) and/or long-acting muscarinic antagonists (LAMAs). Some patients are treated incorrectly with several inhalers of the same pharmacologic group. Methods: Electronic data of LABA and/or LAMA inhalers purchased during a period of 1 year were extracted in one district of Clalit Health Services in Israel. Patients who were treated with two or more inhalers from the same pharmacologic group were compared with patients without duplicate treatment. Inhaler purchases during the 12 months before and after the first duplicate purchase were compared with the purchases by patients without duplication of treatment. New diagnoses were compared to identify possible side effects. Results: Of the 13,528 patients who were treated with LABA and/or LAMA inhalers, 244 (1.8%) purchased at least two different inhalers from the same pharmacologic group. Inhaler purchases were 3.8 times higher in the duplication group during the 12 months before the first duplication. Inhaler purchase increased by 28% in the duplication group compared with a 4.5% increase in the nonduplication group (p < 0.001) during the following year. The risk for duplicated consumption was significantly higher in patients with a chronic obstructive pulmonary disease (COPD) diagnosis, males, and persons aged between 61 and 80 years. Conclusions: Nearly 2% of the patients treated with long-acting bronchodilators consumed different medications of the same pharmacologic group even when adherence was satisfactory. COPD patients are at higher risk for inhaler duplication. Clinical Trial Registration Number: 0151-20-COM1.

Disparities in Oral Nutritional Supplement Usage and Dispensing Patterns across Primary Care in Ireland: ONSPres Project.

When treating malnutrition, oral nutritional supplements (ONSs) are advised when optimising the diet is insufficient; however, ONS usage and user characteristics have not been previously analysed. A retrospective secondary analysis was performed on dispensed pharmacy claim data for 14,282 anonymised adult patients in primary care in Ireland in 2018. Patient sex, age, residential status, ONS volume (units) and ONS cost (EUR) were analysed. The categories of 'Moderate' (<75th centile), 'High' (75th-89th centile) and 'Very High' ONS users (≥90th centile) were created. The analyses among groups utilised t-tests, Mann-Whitney U tests and chi-squared tests. This cohort was 58.2% female, median age was 76 years, with 18.7% in residential care. The most frequently dispensed ONS type was very-high-energy sip feeds (45% of cohort). Younger males were dispensed more ONSs than females (<65 years: median units, 136 vs. 90; p < 0.01). Patients living independently were dispensed half the volume of those in residential care (112 vs. 240 units; p < 0.01). 'Moderate' ONS users were dispensed a yearly median of 84 ONS units (median cost, EUR 153), 'High' users were dispensed 420 units (EUR 806) and 'Very High' users 892 yearly units (EUR 2402; p < 0.01). Further analyses should focus on elucidating the reasons for high ONS usage in residential care patients and younger males.

Outside any therapeutic trial prescription of hydroxychloroquine for hospitalized patients with covid-19 during the first wave of the pandemic: A national inquiry of prescription patterns among French hospitalists.

INTRODUCTION: During the first wave of the coronavirus-disease 2019 (covid-19) pandemic in early 2020, hydroxychloroquine (HCQ) was widely prescribed in light of in vitro activity against severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). Our objective was to evaluate in early 2020 the rate of French hospitalists declaring having prescribed HCQ to treat covid-19 patients outside any therapeutic trial, compare the reasons and the determinants for having prescribed HCQ or not. MATERIAL AND METHODS: A national inquiry submitted by email from May 7 to 25, 2020, to a sample of French hospitalists: doctors managing patients hospitalized for covid-19 in a French department of internal medicine or infectious diseases and identified in the directories of French hospitals or as a member of the French Infectious Diseases Society (SPILF). Primary outcome was the percentage of hospitalists declaring having prescribed HCQ to covid-19 patients. Secondary outcomes were reasons and determinants of HCQ prescription. RESULTS: Among 400 (22.8%) responding hospitalists, 45.3% (95% CI, 40.4 to 50.1%) declared having prescribed HCQ to covid-19 patients. Two main profiles were discerned: HCQ prescribers who did not raise its efficacy as a motive, and non-prescribers who based their decision on evidence-based medicine. Multivariate analysis retained the following prescription determinants (adjusted odds ratio; 95% confidence interval): a departmental procedure for HCQ prescription (8.25; 4.79 to 14.20), having prescribed other treatments outside a therapeutic trial (3.21; 1.81 to 5.71), prior HCQ prescription (2.75; 1.5 to 5.03) and HCQ prescribed within the framework of a therapeutic trial (0.56; 0.33 to 0.95). CONCLUSION: Almost half of the hospitalists prescribed HCQ. The physician's personality (questioning or not evidence-based-medicine principles in the context of the pandemic) and departmental therapeutic procedures were the main factors influencing HCQ prescription. Establishment of "therapeutic" procedures represents a potential means to improve the quality of therapeutic decision-making during a pandemic.

Otologic opioid usage and pain control in the postoperative period: An observational prospective study.

PURPOSE: Evaluate opioid prescribing patterns, opioid consumption, and patient pain patterns following otologic surgery. MATERIALS AND METHODS: Patients were included if they were ≥18 years old and received otologic surgery between November 2019 and August 2020. Patients were provided a survey which included a visual analog scale for recording their pain postoperatively and the amount of opioid they had remaining. Patients who did not complete all portions of the survey were excluded. RESULTS: Ninety-one patients completed the post-operative questionnaire. Collectively, patients were prescribed 5797 morphine milligram equivalents and used 3092: approximately 47% went unused. Of patients receiving a transcanal incision (n = 28/91, 31%), 70% went unused, whereas patients receiving a postauricular incision (n = 57/91, 63%), 38% went unutilized. The utilization difference between transcanal and postauricular cohorts was significant (p = 0.002). On multivariate analysis, patients who received a postauricular incision had 60% more opioid usage (p < 0.001), whereas those with a transcanal incision had an average reduction of 40% in opioid usage (p < 0.001). CONCLUSIONS: A significant amount of opioid medication went unused in this study. Patients with postauricular incisions had significantly increased opioid utilization as compared to those with transcanal incisions. Otologists may be able to successfully manage pain in the postoperative period with a reduced opioid prescription multimodal analgesia and increased patient education. Further study is needed to support this suggestion.

Detection of overdose and underdose prescriptions-An unsupervised machine learning approach.

Overdose prescription errors sometimes cause serious life-threatening adverse drug events, while underdose errors lead to diminished therapeutic effects. Therefore, it is important to detect and prevent these errors. In the present study, we used the one-class support vector machine (OCSVM), one of the most common unsupervised machine learning algorithms for anomaly detection, to identify overdose and underdose prescriptions. We extracted prescription data from electronic health records in Kyushu University Hospital between January 1, 2014 and December 31, 2019. We constructed an OCSVM model for each of the 21 candidate drugs using three features: age, weight, and dose. Clinical overdose and underdose prescriptions, which were identified and rectified by pharmacists before administration, were collected. Synthetic overdose and underdose prescriptions were created using the maximum and minimum doses, defined by drug labels or the UpToDate database. We applied these prescription data to the OCSVM model and evaluated its detection performance. We also performed comparative analysis with other unsupervised outlier detection algorithms (local outlier factor, isolation forest, and robust covariance). Twenty-seven out of 31 clinical overdose and underdose prescriptions (87.1%) were detected as abnormal by the model. The constructed OCSVM models showed high performance for detecting synthetic overdose prescriptions (precision 0.986, recall 0.964, and F-measure 0.973) and synthetic underdose prescriptions (precision 0.980, recall 0.794, and F-measure 0.839). In comparative analysis, OCSVM showed the best performance. Our models detected the majority of clinical overdose and underdose prescriptions and demonstrated high performance in synthetic data analysis. OCSVM models, constructed using features such as age, weight, and dose, are useful for detecting overdose and underdose prescriptions.

Persistent Postoperative Opioid Prescription Fulfillment and Peripheral Nerve Blocks for Ambulatory Shoulder Surgery: A Retrospective Cohort Study.

BACKGROUND: There is need to identify perioperative interventions that decrease chronic opioid use. The authors hypothesized that receipt of a peripheral nerve block would be associated with a lower incidence of persistent postoperative opioid prescription fulfillment. METHODS: This was a retrospective population-based cohort study examining ambulatory shoulder surgery patients in Ontario, Canada. The main outcome measure was persistent postoperative opioid prescription fulfillment. In opioid-naive patients (no opioid prescription fulfillment in 90 days preoperatively), this was present if an individual fulfilled an opioid prescription of at least a 60-day supply during postoperative days 90 to 365. In opioid-exposed (less than 60 mg oral morphine equivalent dose per day within 90 days preoperatively) or opioid-tolerant (60 mg oral morphine equivalent dose per day or above within 90 days preoperatively) patients, this was classified as present if an individual experienced any increase in opioid prescription fulfillment from postoperative day 90 to 365 relative to their baseline use before surgery. The authors' exposure was the receipt of a peripheral nerve block. RESULTS: The authors identified 48,523 people who underwent elective shoulder surgery from July 1, 2012, to December 31, 2017, at one of 118 Ontario hospitals. There were 8,229 (17%) patients who had persistent postoperative opioid prescription fulfillment. Of those who received a peripheral nerve block, 5,008 (16%) went on to persistent postoperative opioid prescription fulfillment compared to 3,221 (18%) patients who did not (adjusted odds ratio, 0.90; 95% CI, 0.83 to 0.97; P = 0.007). This statistically significant observation was not reproduced in a coarsened exact matching sensitivity analysis (adjusted odds ratio, 0.85; 95% CI, 0.71 to 1.02; P = 0.087) or several other subgroup and sensitivity analyses. CONCLUSIONS: This retrospective analysis found no association between receipt of a peripheral nerve block and a lower incidence of persistent postoperative opioid prescription fulfillment in ambulatory shoulder surgery patients.

[Prescription of acetylcholinesterase inhibitors and memantine in the Canary Islands, comparison with the Spanish population.] / Prescripción de inhibidores de acetilcolinesterasa y memantina en Canarias: comparación con la población española.

OBJECTIVE: In the Canary Islands the prescriptions billed to the National Health System are registered in a database (FarmaCanarias). The main objective was to estimate the consumption of Acetylcholinesterase inhibitors (IACE) and Memantine in Canary Islands and to compare with a Spanish sample from Pharmacoepidemiological Research Base in Primary Care (PRBPC) which is national in scope. As secondary we determined the percentage in treatment in the Spanish sample. METHODS: The prescriptions of IACE and / or memantine in 2017 were calculated as Defined Daily Doses per 100 habitants (DHD) in FarmaCanarias and PRBPC. The prescriptions in FarmaCanarias were disclosed by island and age groups were also compared. The percentage of cases in treatment was calculated in PRBPC from records with diagnosis of "dementia". All the comparations were made by Pearson's χ2. RESULTS: The prescription of IACE and Memantine was: 3.042% (95% CI; 3.039-3.045) and 1.584% (95% CI; 1.582-1.587) in The Canary islands, respectively and 2.545% (95% CI; 2.518-2.572) and 0.922% (95% CI; 0.906-0.938), in PRBPC (p<0.001). DHDs between islands were different, except in two (p<0.001) The distribution by age group between FarmaCanarias and PRBPC was hetereogeneous (p<0.001). The percentage of dementia cases in treatment in PRBPC was 45.51% (95% CI; 45.186-45.838). CONCLUSIONS: The prescription of IACE and Memantine was higher in the Canary Islands, which added to the difference by age group, suggests epidemiological differences in dementia compared to the mainland. There is heterogeneity between islands that could be due to epidemiological factors, provider or the Public Health Service.

OBJETIVO: En Canarias las recetas facturadas al Sistema Nacional de Salud están registradas en una base de datos (FarmaCanarias). El objetivo principal de este estudio fue calcular el consumo de inhibidores de la acetilcolinesterasa (IACE) y memantina en Canarias y compararlo con una muestra representativa de la población española procedente de la Base de Investigación Farmacoepidemiológica en Atención Primaria (BIFAP). Como objetivo secundario determinamos el porcentaje de casos tratados en la muestra española. METODOS: Las prescripciones de IACE y/o memantina se calcularon como Dosis Diarias Definidas por 100 habitantes (DHD) en FarmaCanarias y en BIFAP. Se calcularon los resultados por isla y también se compararon por grupos de edad. Los casos tratados se calcularon como porcentaje sobre los casos con demencia totales en BIFAP. Todas las comparaciones fueron efectuadas con la χ2 de Pearson. RESULTADOS: El consumo de IACE y Memantina fue de 3,042% (IC 95%; 3,039-3,045) y 1,584% (IC 95%; 1,582-1,587) en Canarias, respectivamente y de 2,545% (IC 95%; 2,518-2,572) y 0,922% (IC 95%; 0,906-0,938), en BIFAP (p<0,001). Las DHD entre islas fueron diferentes, salvo en dos (p<0,001). La distribución por grupos de edad entre FarmaCanarias y BIFAP fue heterogénea (p<0,001). El porcentaje de casos tratados en BIFAP fue: 45,51% (IC 95%; 45,186-45,838). CONCLUSIONES: La prescripción de IACE y Memantina fue mayor en Canarias lo que, añadido a la diferencia por grupos de edad, sugiere diferencias epidemiológicas en demencia frente al resto de España. Existe heterogeneidad entre islas que podría deberse a factores epidemiológicos, de proveedor o del Servicio Público de Salud.

'Here to stay': changes to prescribing medication in general practice during the COVID-19 pandemic in New Zealand.

INTRODUCTION The delivery of health care by primary care general practices rapidly changed in response to the coronavirus disease 2019 (COVID-19) pandemic in early 2020. AIM This study explores the experience of a large group of New Zealand general practice health-care professionals with changes to prescribing medication during the COVID-19 pandemic. METHODS We qualitatively analysed a subtheme on prescribing medication from the General Practice Pandemic Experience New Zealand (GPPENZ) study, where general practice team members nationwide were invited to participate in five surveys over 16 weeks from 8 May 2020. RESULTS Overall, 78 (48%) of 164 participants enrolled in the study completed all surveys. Five themes were identified: changes to prescribing medicines; benefits of electronic prescription; technical challenges; clinical and medication supply challenges; and opportunities for the future. There was a rapid adoption of electronic prescribing as an adjunct to use of telehealth, minimising in-person consultations and paper prescription handling. Many found electronic prescribing an efficient and streamlined processes, whereas others had technical barriers and transmission to pharmacies was unreliable with sometimes incompatible systems. There was initially increased demand for repeat medications, and at the same time, concern that vulnerable patients did not have usual access to medication. The benefits of innovation at a time of crisis were recognised and respondents were optimistic that e-prescribing technical challenges could be resolved. DISCUSSION Improving e-prescribing technology between prescribers and dispensers, initiatives to maintain access to medication, particularly for vulnerable populations, and permanent regulatory changes will help patients continue to access their medications through future pandemic disruption.

Prescription Filling Patterns of Evidence-Based Medical Therapies for Heart Failure During the COVID-19 Pandemic in the United States.

BACKGROUND: Maintaining a steady medication supply during a public health crisis is a major health priority. We leveraged a large U.S. pharmacy-claims database to understand the use of evidence-based therapies in heart failure (HF) care during the coronavirus disease-2019 (COVID-19) pandemic. METHODS: We analyzed 27,027,650 individual claims from an all-payer pharmacy-claims database across 56,155 chain, independent and mail-order pharmacies in 14,164 zip codes in 50 states. Prescriptions dispensed (in 2-week intervals) of evidence-based HF therapies in 2020 were indexed to comparable timeframes in 2019. We normalized these year-to-year changes in HF medical therapies relative to those observed with a stable basket of drugs. RESULTS: Fills of losartan, lisinopril, carvedilol, and metoprolol all peaked in the weeks of March 2020 and demonstrated trajectories thereafter that were relatively consistent with the reference set of drugs. Fills of spironolactone (+4%) and eplerenone (+18%) showed modest trends toward increased relative use during 2020. Fills of empagliflozin (+75%), dapagliflozin (+65%) and sacubitril/valsartan (+61%) showed striking longitudinal increases throughout 2020 that deviated substantially from year-to-year trends of the overall basket of drugs. For all 3 therapies, fills of all quantity sizes increased relatively throughout 2020. For both generic and brand-name therapies, prescription fill patterns from mail-order pharmacies increased substantially over expected trends beginning in March 2020 CONCLUSION: Prescription fills of most established generic therapies used in HF care were maintained, whereas those of sacubitril/valsartan and the sodium-glucose cotransporter-2 inhibitors steeply increased during the COVID-19 pandemic. These nationwide pharmacy claims data provide reassurance about therapeutic access, during a public health crisis, to evidence-based medications used in HF care.

Outpatient Prescription Practices in Patients with Atrial Fibrillation (From the NCDR PINNACLE Registry).

This study sought to evaluate inappropriate prescribing practices in an atrial fibrillation (AF) population, as outlined by the 2016 ACC/AHA Clinical Performance and Quality Measures for Adults with Atrial Fibrillation or Atrial Flutter document. The 2016 AF quality measures document specified medications to avoid in certain AF populations, including aspirin and anticoagulant combination therapy in patients without cardiovascular disease, and non-dihydropyridine calcium channel blockers in patients with reduced ejection fraction. Using data from the NCDR PINNACLE registry, a national outpatient cardiology practice registry, we assessed rates of inappropriate prescription of two types of medications among AF outpatients from 5/1/2008-5/1/2016. Overall rates of inappropriate prescription and variation by practice were calculated. Patient and practice factors associated with inappropriate prescription were assessed in adjusted analyses. A total of 107,759 of 658,250 (16.4%) patients without cardiovascular disease were inappropriately prescribed an antiplatelet and anticoagulant together, and 5,731 of 150,079 (3.8%) patients with reduced ejection fraction were inappropriately prescribed a non-dihydropyridine calcium channel blocker. Overall, 14.8% of AF patients were prescribed medications that were not recommended. Both patient and practice factors were associated with inappropriate prescribing, and the adjusted practice-level median odds ratio for inappropriate prescription was 1.70 (95% CI: 1.61-1.82), indicating a 70% likelihood that 2 random practices would treat identical AF patients differently. In a large registry of AF patients treated in cardiology practices, overall rates of inappropriate prescription practices, as defined by the 2016 AF quality measures, were relatively low, but significant practice variation was present.