Optimal Antimicrobial Use Research Articles

Multidisciplinary Collaboration in Combatting Antimicrobial Resistance: Insights and Outcomes From the National Alliance of Medical Professionals on Antimicrobial Resistance (NAMP-AMR) Initiative.

Antimicrobial resistance (AMR) poses a critical global health challenge, requiring a coordinated and vigorous response. Despite numerous global and national efforts, a unified multidisciplinary approach has been missing. The National Alliance of Medical Professionals on Antimicrobial Resistance (NAMP-AMR), led by the Indian Medical Association in collaboration with key stakeholders such as NITI Aayog and the Ministry of Health, seeks to address this gap. This alliance unites 52 medical specialty organizations and associations to enhance efforts across various sectors, developing comprehensive strategies for awareness, surveillance, infection control, and optimization of antimicrobial use. The foundational meeting of NAMP-AMR on July 7, 2024, established a collaborative roadmap, promising to bolster India's efforts against AMR and support the forthcoming National Action Plan on AMR 2.0. The meeting concentrated on six key areas: improving AMR awareness and advocacy; strengthening laboratory capacities and surveillance; enhancing infection prevention and control (IPC); optimizing antimicrobial use through stricter regulations and stewardship programs; advancing AMR research and innovation; and fostering strong national and international collaborations. This initiative marks a significant advancement in combating AMR and positions India as a leader in global health efforts against this critical issue.

Introducing the UK Antimicrobial Registry (UKAR) study: providing real world data on new antimicrobials to support antimicrobial stewardship and tackle antimicrobial resistance.

The UK Antimicrobial Registry (UKAR) has been developed to capture data on real world usage of antimicrobial agents with an initial focus on those used to treat drug-resistant infections. Several industry partners have committed support for the study, which is included in the National Institute for Health and Care Research (NIHR) portfolio in England with similar arrangements in the three devolved UK nations. The two antimicrobials in the National Institute for Health and Care Excellence (NICE) subscription model pilot (cefiderocol and ceftazidime/avibactam) are included in the UKAR and future expansion of work in this area is planned. This model decouples payment from usage by using a fixed annual fee. The study will provide information on the characteristics of patients receiving study drugs, the infections being treated, treatment effectiveness and adverse events. UKAR potentially provides a novel resource of enduring value to support healthcare in the UK and more widely and contribute to AMR National Action Plan goals for optimal use of antimicrobials.

The impact of meropenem shortage and post-prescription review and feedback on broad-spectrum antimicrobial use: An interrupted time-series analysis

Meropenem (MEPM) holds significance in treating severe infections and drug-resistant bacteria. There are concerns that antimicrobial shortages may lead to the use of alternative antimicrobials that are less effective and safer. We have responded to the MEPM shortage with post-prescription monitoring and feedback (PPRF) with no restrictions on MEPM initiation. We aimed to assess the impact of the MEPM shortage and the PPRF on broad-spectrum antimicrobial use and mortality. This retrospective study was conducted in a single hospital in Japan. The period from October 2021 to August 2022 was defined as the period before the MEPM shortage, and the period from September 2022 to March 2023 was defined as the period during the MEPM shortage. To support the appropriate use of antimicrobials during MEPM shortages, the antimicrobial stewardship team (AST) developed a list of alternatives to MEPM. An interrupted time series analysis was used to assess changes in use and mortality among patients receiving broad-spectrum antimicrobials over the study period. The shortage of MEPM and PPRF temporarily increased the use of alternative cefepime; however, the subsequent change in days of therapy and days of coverage of broad-spectrum antimicrobials suggests a decrease in the use of these antimicrobials. Despite these shifts, the mortality rates remained stable, suggesting that the response to the shortage did not adversely affect treatment outcomes. In the context of antimicrobial shortages, AST support plays an important role in enabling physicians to make optimal use of antimicrobials.

The role of medicines and therapeutics committees structure in supporting optimal antibacterial use in hospitals in Uganda: A mixed method study.

Although the roles of Medicines and therapeutic committees (MTCs) have been expanding, there is limited information on the role of their structure in optimal antibacterial use in hospitals, especially in low-and-middle-income countries. Our study explored the structure and role of MTC in supporting antibacterial use in regional referral, general hospitals and tertiary private not-for-profit (PNFP) hospitals in Uganda. We conducted an explanatory sequential mixed-method approach with triangulation to explore the structure and functional role of MTCs from August 2019 to February 2020 in hospitals in Uganda. Quantitative data was collected using an interviewer-administered questionnaire among chairpersons or secretaries of MTCs and was analysed using descriptive statistics. We conducted key informant interviews using an interview guide among long-term serving members of MTCs to collect qualitative data which triangulated the quantitative data. The study revealed that sixteen hospitals had successfully established MTCs with an average duration of the MTCs' existence of 5.6 (+2.7) years. The membership of the MTCs varied between 7 and 14, with a median value of 10, and the majority of members in MTCs were pharmacists (15 out of 16) and clinical specialists (13 out of 16). The most frequent subcommittees of the 16 hospitals MTC were supply chain (n = 14), antimicrobial stewardship (n = 13), and infection control (n = 12). Majority (14 out of 16) of the MTCs supported availability and access of antibacterial use by selecting and evaluating antibacterials agents for their formulary lists using established criteria. Additionally, 15 out 16 MTCs conducted antimicrobial stewardship activities to support optimal antimicrobial use. In our study, MTC membership and subcommittees were critical structural components that aided the selection and evaluation antibacterials on hospital formulary lists and they supported optimal antibacterial use through implementing various antimicrobial stewardship activities. There is a need for the Ministry of Health to conduct more training on operationalising MTCs structures in all hospitals.

Prescribing Pattern of Antimicrobials for Respiratory Tract Infections among Paediatric population in a Multi- Speciality Teaching Hospital

Respiratory Tract Infection (RTI) is one of the leading causes of paediatric mortality. Majority of RTIs are viral in origin. Bacterial pathogens associated with upper and lower respiratory tract infections are Streptococcus pneumoniae, Haemophilus influenza and Moraxella catarrhalis. Antibiotics are considered as the key drugs of choice for the treatment of many infections and they are most commonly prescribed drugs in paediatric department of RTI. Antibiotic regimen should be selected based on presumed causative pathogen. In view of the higher burden of RTI among paediatrics in this area, a study is taken up to analyse the prescribing pattern of antibiotics in RTI. The prospective study was conducted for a period of 6 months. Case records of 156 patients were selected based on the study criteria. A suitably designed data collection form was used to collect the required data. Statistical analysis was done using Microsoft Excel.In this study, there was a slight female predominance (50.64%) and the most prevalent age group was 0 - 3 years (44.88%). LRTI (55.77%) was extensively distributed among the study population in which WALRTI constituted the highest (25.65%). Penicillin (33.15%) class of antibiotics were the most preferred followed by cephalosporin (30.97%). Amoxicillin-clavulanate (26.02%) and Ceftriaxone (21%) were the highly prescribed antibiotics among penicillin and cephalosporins respectively. Majority of patients received antibiotics intravenously. Monotherapy was encouraged in 66.64% of patients. It is essential to improve the utilisation of drugs and therefore analysis of prescription pattern should be carried out frequently to enhance the quality of prescriptions. The study results aim at focusing the importance of strategies that have to be implemented to rationalise the use of medications in paediatrics. Drug utilization studies are vital to promote optimal use of antimicrobials to ensure the best clinical outcome and to address the concern of antimicrobial resistance.

Implementation and Perceived Effectiveness of Prospective Audit and Feedback and Preauthorization by US Pediatric Antimicrobial Stewardship Programs.

Antimicrobial stewardship programs (ASPs) promote optimal antimicrobial use to prevent resistance, improve outcomes, and reduce costs. We explored how pediatric ASPs enact prospective audit and feedback (PAF) and preauthorization and characterized programs' perceptions of how these choices affected attainment of stewardship goals. We conducted focus groups with US pediatric ASP practitioners, organized by predominant strategy: PAF, preauthorization, or a hybrid. We asked open-ended questions about organization, staffing, and operation of these strategies, as well as rationales for and perceived advantages and disadvantages of these choices. We used applied thematic analysis to analyze transcripts, organizing coded text into themes and categories. We formulated a conceptual model for how the design and performance of PAF and preauthorization affect stewardship goals and stewards' work experiences. Eighteen physicians and 14 pharmacists from 24 hospitals participated in five focus groups. Stewards described myriad advantages and limitations of PAF and preauthorization that support or detract from stewardship goals. For example, PAF uncovered institutional trends in antibiotic use and fostered relationship building but was time-consuming. Preauthorization efficiently reduced broad-spectrum antimicrobial use, yet offered limited educational opportunities. How these strategies facilitated or impeded appropriate antimicrobial use in turn affected stewards' professional satisfaction, creating a feedback loop that could reinforced positive or negative outcomes. ASPs reported differing emphasis on and implementation of PAF and preauthorization. Each strategy entailed contrasting benefits and trade-offs for steward satisfaction and perceived efficacy, suggesting that a hybrid approach could enable ASPs to maximize strengths of each to mitigate drawbacks of the other.

National health insurance scheme improves access and optimization of antimicrobial use in the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria.

Nigeria instituted the National Health Insurance Scheme (NHIS) for universal health coverage. This study compared the NHIS and out-of-pocket (OOP) antibiotic prescribing with the World Health Organization (WHO) optimal values. A total of 2190 prescription forms from the NHIS and OOP were included in this study conducted at Obafemi Awolowo University Teaching Hospitals Complex, Nigeria from January 2021 to December 2022 and analysed using WHO drug prescribing guidelines. The average number of drugs per encounter was higher in the NHIS prescribing (χ2=58.956, p=0.00) than in OOP prescribing. The percentage of encounters with an antibiotic prescribed is higher in NHIS prescribing (χ2=46.034, p=0.000) than in OOP prescribing. The percentage of parenteral antibiotic prescribing is higher in OOP prescribing (χ2=25.413, p=0.000) than in NHIS prescribing. The percentage of antibiotic prescribed from the National Essential Medicine List is higher in NHIS prescribing (χ2=8.227, p=0.000) as well as the antibiotics prescribed from the Access category of the WHO Access, Watch and Reserve (AWaRe) Classification of antibiotics (χ2=23.946, p=0.000) when compared with OOP prescribing. Prescribing indicators show better performances with NHIS antibiotic prescribing and are closer to the WHO-recommended optimal values than in OPP prescribing. Hence NHIS prescribing can be an easy target for hospital antibiotic stewardship intervention for optimal antibiotic prescribing.

Consumer perceptions of community pharmacists' involvement in antimicrobial stewardship: A quantitative study

Background Community pharmacist involvement in antimicrobial stewardship (AMS) within primary care is underutilised. Despite this view being consistently held across the pharmacy sector's policy, academic and professional spheres, there is limited understanding of how this positioning aligns with consumers' perceptions and expectations. Objective To explore participants' experience using antibiotics and their engagement with pharmacists to support their use. Methods Online survey of Australian adults recruited via Dynata's research panel in November 2022. Questions were organised into three sections: 1) understanding the participant's use of antibiotics, including their information needs; 2) exploring engagement with pharmacists on a cold and flu enquiry using a vignette question; and 3) demographic information. Results Doctors (42.0%), pharmacists (29.8%) and the internet including general searches (14.3%) were the top three sources for antibiotic information. Information about side effects and anticipated time to effect were more broadly sought from pharmacists than what was provided. Over 50% of respondents indicated alignment between the best practice example of a pharmacist providing cold and flu management advice with their own experience. 17% of respondents indicated that they would seek doctor's advice when considering cold and flu management options compared to 10% seeking pharmacist's advice. No statistically significant results between age groups or gender were observed. Conclusion Better visibility of community pharmacists' involvement in managing minor ailments in primary care, including more explicit linkage of pharmacist-administered vaccination services as an AMS strategy can support optimal antimicrobial use.

Antimicrobial resistance in Democratic Republic of Congo: the way forward

Antimicrobial resistance in Democratic Republic of Congo: the way forward

Appropriate Use of Antibiotic and Principles of Antimicrobial Stewardship in Children.

Antibiotics account for over 10% of the overall drug expense of the National Health System in Italy in 2021. Their use in children is of particular interest on one side, because acute infections are very common in children, while they build their immunologic library of competence; on the other side, although many acute infections are expected and turn out to be of viral origin, caregivers will often ask the family doctor or primary care attending to reassure them by prescribing antibiotic treatment, although it may often be unnecessary. The inappropriate prescription of antibiotics in children may likely be a source not only of undue economic burden for the public health system but also of increasing development of antimicrobial resistance (AMR). Based on those issues, the inappropriate use of antibiotics in children should be avoided to reduce the risks of unnecessary toxicity, increase in health costs, lifelong effects, and selection of resistant organisms causing undue deaths. Antimicrobial stewardship (AMS) describes a coherent set of actions that ensure an optimal use of antimicrobials to improve patient outcomes while limiting the risk of adverse events including AMR. The aim of this paper is to spread some concept of good use of antibiotics for pediatricians or every other physician involved in the choice to prescribe, or not, antibiotics in children. Several actions could be of help in this process, including the following: (1) identify patients with high probability of bacterial infection; (2) collect samples for culture study before starting antibiotic treatment if invasive bacterial infection is suspected; (3) select the appropriate antibiotic molecule based on local resistance and narrow spectrum for the suspected pathogen(s); avoid multi-antibiotic association; prescribe correct dosage; (4) choose the best route of administration (oral vs. parenteral) and the best schedule of administration for every prescription (i.e., multiple administration for beta lactam); (5) schedule clinical and laboratory re-evaluation with the aim to consider therapeutic de-escalation; (6) stop antibiotic administration as soon as possible, avoiding the application of "antibiotic course".

Is Education Alone Enough to Sustain Improvements of Antimicrobial Stewardship in General Practice in Australia? Results of an Intervention Follow-Up Study.

Sustained behaviour change and practice improvements for the optimal use of antimicrobials remains challenging in primary care. In 2018, a simple antimicrobial stewardship education programme involving guideline recommendations for common infections, antimicrobial audit reports, and local antibiograms resulted in significant improvements in guideline compliance and more appropriate antimicrobial prescribing by GPs. This observational follow-up study aims to examine the sustainability of the positive intervention effect after two years of implementation of the intervention. Practice-based data on all oral antimicrobial prescriptions issued by GPs were collected retrospectively to compare with intervention data and to measure the sustainability of the intervention effect. The data were analysed using a two-sample test of proportions. The primary outcomes included changes in the rate of prescription compliance with the Australian "Therapeutic Guidelines: Antibiotic" and the appropriateness of antimicrobial choice and duration of therapy. Overall, there was a significant decline in guideline compliance, from 58.5 to 36.5% (risk ratio (RR) (95% CI): 0.62 (0.52-0.74)), in the appropriateness of antimicrobial choice, from 92.8 to 72.8% (0.78 (0.73, 0.84)), and in the prescribed duration, from 87.7 to 53.3% (0.61 (0.54, 0.68)) in the intervention follow-up period. In respiratory infections and ear, nose, and throat infections, the rates of guideline compliance and appropriate choice and duration of antimicrobial prescription decreased significantly at p < 0.001. Appropriateness in the duration of antimicrobial therapy also significantly decreased for most antimicrobials. The evidence suggests that a simple and single-occasion antimicrobial stewardship education programme is probably not enough to sustain improvements in the optimal use of antimicrobials by GPs. Future research is needed to validate the results in multiple GP clinics and to examine the effect of sustained education programmes involving infection-specific and antimicrobial-targeted audits and feedback.

Antimicrobial susceptibility testing: An updated primer for clinicians in the era of antimicrobial resistance: Insights from the Society of Infectious Diseases Pharmacists.

Antimicrobial susceptibility testing (AST) is a critical function of the clinical microbiology laboratory and is essential for optimizing care of patients with infectious diseases, monitoring antimicrobial resistance (AMR) trends, and informing public health initiatives. Several methods are available for performing AST including broth microdilution, agar dilution, and disk diffusion. Technological advances such as the development of commercial automated susceptibility testing platforms and the advent of rapid diagnostic tests have improved the rapidity, robustness, and clinical application of AST. Numerous accrediting and regulatory agencies are involved in the process of AST and setting and revising breakpoints, including the U.S. Food and Drug Administration and the Clinical and Laboratory Standards Institute. Challenges to optimizing AST include the emergence of new resistance mechanisms, the development of new antimicrobial agents, and generation of new data requiring updates and revisions to established methods and breakpoints. Together, the challenges in AST methods and their interpretation create important opportunities for well-informed clinicians to improve patient outcomes and provide value to antimicrobial stewardship programs, especially in the setting of rapidly changing and increasing AMR. Addressing AST challenges will involve continued development of new technologies along with collaboration between clinicians and the laboratory to facilitate optimal antimicrobial use, combat the increasing burden of AMR, and inform the development of novel antimicrobials. This updated primer serves to reinforce important principles of AST, and to provide guidance on their implementation and optimization.

Development of National Antimicrobial Intravenous-to-Oral Switch Criteria and Decision Aid.

Antimicrobial stewardship (AMS) strategies, such as intravenous-to-oral switch (IVOS), promote optimal antimicrobial use, contributing to safer and more effective patient care and tackling antimicrobial resistance (AMR). This study aimed to achieve nationwide multidisciplinary expert consensus on antimicrobial IVOS criteria for timely switch in hospitalised adult patients and to design an IVOS decision aid to operationalise agreed IVOS criteria in the hospital setting. A four-step Delphi process was chosen to achieve expert consensus on IVOS criteria and decision aid; it included (Step One) Pilot/1st round questionnaire, (Step Two) Virtual meeting, (Step Three) 2nd round questionnaire and (Step 4) Workshop. This study follows the Appraisal of Guidelines for Research and Evaluation II instrument checklist. The Step One questionnaire of 42 IVOS criteria had 24 respondents, 15 of whom participated in Step Two, in which 37 criteria were accepted for the next step. Step Three had 242 respondents (England n = 195, Northern Ireland n = 18, Scotland n = 18, Wales n = 11); 27 criteria were accepted. Step Four had 48 survey respondents and 33 workshop participants; consensus was achieved for 24 criteria and comments were received on a proposed IVOS decision aid. Research recommendations include the use of evidence-based standardised IVOS criteria. This study achieved nationwide expert consensus on antimicrobial IVOS criteria for timely switch in the hospitalised adult population. For criteria operationalisation, an IVOS decision aid was developed. Further research is required to provide clinical validation of the consensus IVOS criteria and to expand this work into the paediatric and international settings.

Core Elements for Implementing Antimicrobial Stewardship Programs in Korean General Hospitals

Currently, antimicrobial resistance (AMR) is a major threat to global public health. To overcome this crisis, antimicrobial stewardship programs (ASPs) have been proposed. An ASP supports the optimal use of antimicrobials, including appropriate dosing decisions, as well as the duration and routes of administration. In South Korea, efforts are underway to overcome AMR through a national policy supporting ASPs. This study developed the core elements of an ASP for domestic medical facilities. Two Delphi surveys were conducted to select the core elements through expert consensus. The core elements for ASP implementation included leadership commitment, an operating system, action, tracking, reporting, and education. To ensure that these core elements are present in medical facilities, multiple departments must collaborate to support ASP operations. The establishment of a reimbursement system and workforce for ASPs are prerequisites for ASP implementation. The active implementation of core ASP elements in medical facilities requires the provision of financial support for the ASPs, cultivation of a healthcare workforce to perform ASPs, application of the core elements to healthcare accreditation, and provision of incentives to medical facilities via quality evaluation criteria.

A complex ePrescribing-based Anti-Microbial Stewardship (ePAMS+) intervention for hospitals combining technological and behavioural components: protocol for a feasibility trial

BackgroundAntimicrobial resistance is a leading global public health threat, with inappropriate use of antimicrobials in healthcare contributing to its development. Given this urgent need, we developed a complex ePrescribing-based Anti-Microbial Stewardship intervention (ePAMS+).MethodsePAMS+ includes educational and organisational behavioural elements, plus guideline-based clinical decision support to aid optimal antimicrobial use in hospital inpatients. ePAMS+ particularly focuses on prompt initiation of antimicrobials, followed by early review once test results are available to facilitate informed decision-making on stopping or switching where appropriate. A mixed-methods feasibility trial of ePAMS+ will take place in two NHS acute hospital care organisations. Qualitative staff interviews and observation of practice will respectively gather staff views on the technical component of ePAMS+ and information on their use of ePAMS+ in routine work. Focus groups will elicit staff and patient views on ePAMS+; one-to-one interviews will discuss antimicrobial stewardship with staff and will record patient experiences of receiving antibiotics and their thoughts on inappropriate prescribing. Qualitative data will be analysed thematically. Fidelity Index development will enable enactment of ePAMS+ to be measured objectively in a subsequent trial assessing the effectiveness of ePAMS+. Quantitative data collection will determine the feasibility of extracting data and deriving key summaries of antimicrobial prescribing; we will quantify variability in the primary outcome, number of antibiotic defined daily doses, to inform the future larger-scale trial design.DiscussionThis trial is essential to determine the feasibility of implementing the ePAMS+ intervention and measuring relevant outcomes, prior to evaluating its clinical and cost-effectiveness in a full scale hybrid cluster-randomised stepped-wedge clinical trial. Findings will be shared with study sites and with qualitative research participants and will be published in peer-reviewed journals and presented at academic conferences.Trial registrationThe qualitative and Fidelity Index research were approved by the Health and Research Authority and the North of Scotland Research Ethics Service (ref: 19/NS/0174). The feasibility trial and quantitative analysis (protocol v1.0, 15 December 2021) were approved by the London South East Research Ethics Committee (ref: 22/LO/0204) and registered with ISRCTN (ISRCTN 13429325) on 24 March 2022

P17 National antimicrobial point prevalence survey in adult inpatient mental health facilities in Ireland

Abstract Background Antimicrobial use in mental health inpatient settings has not been extensively examined in Ireland. The Healthcare-Associated Infection and Antimicrobial Use in Long-Term Care Facilities (HALT) study 2016 found that Irish long-term care facilities caring for residents with psychiatric conditions had an antimicrobial prevalence rate of 7.7%, higher than the European average of 4.9%. National community antimicrobial prescribing guidelines are available at www.antibioticprescribing.ie. In addition, a preferred antibiotic initiative for community settings advocates prescribers to choose ‘Green’ (preferred) antibiotics over ‘Red’ (reserved) agents. Reserved agents are considered to have more adverse effects, drug interactions and potential for development of antimicrobial resistance. The patient safety implications of antimicrobial stewardship along with an ageing population, and potential drug–drug interactions between many antimicrobials and psychotropic medications prompted a review of antimicrobial use practices in mental health services. Methods A sample of adult inpatient mental health facilities (MHF) operated by the state's Health Service Executive (HSE) were surveyed by community antimicrobial pharmacists (AMPs) between November 2021 and January 2022. AMPs reviewed patients’ medication charts for systemic antimicrobial prescriptions in the previous 30 days in addition to medical notes and laboratory results (where available). Adherence to HSE National community antimicrobial guidelines and the systems and structures in place to support antimicrobial stewardship were assessed. Results In total, 1003 patients in 51 MHFs were surveyed. At the time of survey, 6.3% (n=66) patients were on a systemic antimicrobial and 15% (n=153) had received a systemic antimicrobial within the previous 30 days. Prophylaxis accounted for 50% of antibiotic use (3.3% of all patients), with the most common indication being the prevention of urinary tract infection (UTI) (58%). Prophylaxis duration exceeded six months in 61% of prescriptions. The median duration of treatment courses was seven days. The proportion of ‘Green’ (preferred) antimicrobials versus ‘Red’ (reserved) antimicrobials was 58% versus 38%. Co-amoxiclav, a ‘Red’ agent was the most commonly prescribed antibiotic for treatment of infection (31%). Adherence with choice of antimicrobial agent as per national antimicrobial guidelines was 76%; adherence of dosing regimen was 75% and adherence with recommended duration was 46%. The main themes for non-adherence with choice of agent were use of unnecessarily broad spectrum agents, nitrofurantoin prescribed in renal impairment and inappropriate formulation of nitrofurantoin chosen. Dipstick urinalysis was performed routinely (on admission and/or at designated intervals) for persons asymptomatic of UTI in 53% (n=27) of MHFs. Conclusions This PPS established antimicrobial use practices in HSE MHFs and identified opportunities for improvement relating to the safe and optimal use of antimicrobials. Key national recommendations from this survey were:

From Awareness to Action: Tackling Antimicrobial Resistance in Livestock Farming

Using antimicrobial drugs in animals is crucial for their well-being and productivity, ensuring improved food security, safety, and animal welfare. However, there's a growing concern about antimicrobial resistance (AMR), posing a threat to these advantages. Resistance, originating in one location or species, can easily spread globally, affecting both developed and developing nations. The issue of antimicrobial resistance has not received sufficient attention in South Asia, including India, and there's surprisingly little knowledge about antibiotic use in animal husbandry. Currently, AMR is a global concern demanding immediate attention. It's crucial to focus on the optimal use of antimicrobials following prescribed guidelines and action plans.

167. Clinical Impact of Rapid Multiplex Polymerase Chain Reaction-Based Diagnostic Testing for Hospitalized Patients with Bloodstream Infections (BSIs) in a National Cohort of Veterans Affairs Patients

Abstract Background Polymerase chain reaction (PCR)-based diagnostic testing for BSIs, such as the BioFire FilmArray® Blood Culture Identification (BCID) Panel, has the potential to shorten time to appropriate therapy and duration of overly broad-spectrum antibiotics. The clinical benefit of PCR-based diagnostic technologies for BSIs has been demonstrated but data supporting their utility in larger multi-center settings are limited. This study sought to evaluate outcomes associated with the implementation of the BioFire BCID in the US Veterans Affairs (VA) system. Table Methods A retrospective multi-center pre-post quasi-experimental study was performed among patients admitted to any VA hospital that adopted BioFire BCID Panel for ≥ 1 year. Patients with ≥ 1 BSI due to bacteria on the BioFire BCID Panel (19 bacterial targets) were included. Exclusion criteria were polymicrobial BSI or death within 48 hours of BSI. Patients were categorized into two groups: i) BSI in the 1-year prior to implementation (pre-BCID) and ii) 1-year post implementation (post-BCID). Post-BCID period commenced 2 months after first BCID-BSI. Outcomes included early de-escalation, defined as a reduction in antimicrobial spectrum score within 48 hours of index BSI, time to appropriate therapy, 30-day mortality, and 90-day CDI incidence. Results A total of 4099 patients across 33 VA facilities met study criteria (n=2088 pre-BCID; n=2011 post- BCID). Groups were similar at baseline (Table). BioFire BCID implementation was associated with an improvement in early de-escalation (38.3% in post-BCID vs 34.8% in pre-BCID, p=0.02) and reduction in median (IQR) time to appropriate therapy (8 [4-19] hours in post-BCID vs 9 [3-19] hours in pre-BCID, P&amp;lt; 0.01). There was no significant difference in 30-day mortality (11.1% in post-BCID vs 12.4% in pre-BCID, p=0.2) or CDI (4.6% in post-BCID vs 4.8% in pre-BCID, p=0.8) between BCID groups. Conclusion In this large VA cohort study, implementation of the BioFire BCID panel was associated with a significant improvement in early antimicrobial de-escalation and time to appropriate therapy. These data suggest this rapid diagnostic technology aids in optimization of antimicrobial use in hospitalized VA patients with BSIs. Disclosures Nicholas Britt, PharmD, MS, Gilead Sciences: Advisor/Consultant|Gilead Sciences: Grant/Research Support|Merck: Advisor/Consultant|Merck: Grant/Research Support|Shionogi: Grant/Research Support Karim Khader, PhD, BioFire Diagnostics: Grant/Research Support Tristan T. Timbrook, PharmD, bioMerieux: Employee of bioMerieux Thomas Lodise, Jr., Pharm.D., PhD, BioFire Diagnostics: Grant/Research Support|cidara: Advisor/Consultant|cidara: Honoraria|Entasis: Grant/Research Support|Merck: Advisor/Consultant|Merck: Grant/Research Support|Paratek: Advisor/Consultant|Shionogi: Advisor/Consultant|Spero: Advisor/Consultant|Venatrox: Advisor/Consultant.

Drugs, Drugs, Drugs: Current Treatment Paradigms in Cystic Fibrosis Airway Infections.

Airway infections have remained a prominent feature in persons living with cystic fibrosis (CF) despite the dramatic improvements in survival in the past decades. Antimicrobials are a cornerstone of infection management for both acute and chronic maintenance indications. Historic clinical trials of antimicrobials in CF have led to the adoption of consensus guidelines for their use in clinical care. More recently, however, there are efforts to re-think the optimal use of antimicrobials for care with the advent of novel and highly effective CF transmembrane conductance regulator modulator therapies. Encouragingly, however, drug development has remained active concurrently in this space. Our review focuses on the evidence for and perspectives regarding antimicrobial use in both acute and maintenance settings in persons with CF. The therapeutic innovations in CF and how this may affect antimicrobial approaches are also discussed.

Sale of antibiotics without prescription in stand-alone pharmacies in Tamil Nadu.

Non-prescription sale of antibiotics is one of the major causes for increased consumption of antibiotics which facilitates the emergence of drug resistance. Over-the-counter sale of antibiotics in India, without prescription and often at partial doses, is quite common even though the practice is not legal. (1) To interview pharmacists about the sale of over-the-counter medication, and prescription drugs sold without a prescription, in particular; (2) to obtain an understanding of the reasons for such sale from the perspective of the pharmacist. Pharmacists were interviewed with the help of a pre-validated questionnaire in 15 stand-alone pharmacies in a metropolitan city and a tier-2 city in Tamil Nadu. Major points of interest were characteristics of customers requesting antibiotics without a valid prescription, common diseases for which they were sold without prescription, whether patients asked for antibiotics by name or as treatment for their symptoms, and reasons for such requests. Pharmacists readily admitted to selling prescription drugs, including antibiotics without a valid prescription. While they know of antibiotic resistance, not a single pharmacist interviewed by us knew of the causes of antibiotic resistance. The intervention listed in the National Action Plan on Antimicrobial Resistance to develop awareness campaigns targeted at dispensers regarding existing rules and appropriate use of antimicrobials and mandatory training programs on optimal antimicrobial use must be implemented immediately.