Economic evaluation of oral ivermectin, alone or in combination with permethrin, versus permethrin, in the treatment of classic scabies in the Philippine Setting

Background and Objective@#Oral ivermectin is recommended as an alternative to topical permethrin in Japanese, European, and CDC-STI guidelines for treating classic scabies. The combination of oral ivermectin and topical permethrin is also used in some settings. Partial economic evaluations conducted in India and Egypt have conflicting results, and no cost-effectiveness analysis in the Philippines has compared ivermectin-based regimens to permethrin for scabies treatment. We aimed to determine the cost-effectiveness of oral ivermectin, alone or in combination with permethrin, compared to permethrin, in the treatment of Filipino adult patients with classic scabies.@*Methods@#We used a decision tree model to estimate the cost-effectiveness of two regimens, oral ivermectin alone or in combination with permethrin, compared with permethrin to treat adults and children aged five years and older with classic scabies in the outpatient setting from the household perspective in the Philippines. We estimated total costs and disability-adjusted life years (DALYs) over a one-month follow-up. Input parameters were obtained from secondary data, such as effect estimates for probabilities of clinical outcomes from a network meta-analysis, DALYs from the Global Burden of Disease 2019, and prevailing market cost in the Philippines (DPRI 2022 with recommended markup by DOH, and leading drugstores) as of August 2022. We computed for incremental cost-effectiveness ratio (ICER) and net monetary benefit (NMB) to determine which of the interventions are cost-effective. Univariate and probabilistic sensitivity analyses, and scenario analyses were conducted to assess the impact of parameter and structural uncertainty.@*Results@#Ivermectin-based regimens are suggested to be likely cost-saving compared to permethrin in the Philippine outpatient setting. Base case analysis showed that oral ivermectin had higher cost-savings (change in cost, -1,039.31; change in DALYS, 0.00027), while combination oral ivermectin/permethrin had higher DALYs averted (change in cost, PhP -1,019.78; change in DALYs, 0.00045), compared to permethrin. Combination oral ivermectin/permethrin (56%) was the most cost-effective, followed by oral ivermectin (44%) compared to permethrin (0%) through probabilistic sensitivity analysis. Estimates for ivermectin were sensitive to risk of cure for ivermectin vs permethrin using 1-way deterministic sensitivity analysis. Oral ivermectin was favored over combination oral ivermectin/permethrin at all thresholds based on the cost-effectiveness acceptability curve.@*Conclusion@#Both ivermectin-based regimens seem to be cost-saving compared to permethrin in the treatment of classic scabies in the Philippine outpatient setting. Clinicians may consider oral ivermectin, alone or in combination with permethrin as an alternative first-line or second-line treatment depending on patient preference, adverse event risk profile, availability, and economic capacity. This needs to be confirmed using primary data from Filipino patients to enhance the robustness of the findings and support evidence-based local decision-making in different settings. Less uncertainty in modelled parameters can give greater confidence in the results, which can be adopted for budget impact analysis and allow more rational resource allocation. Value of information analysis can be done to determine whether the expense of future RCTs or surveys in Filipinos to collect primary data is worth it. The cost of reducing uncertainty, if deemed worth the cost of further studies, may facilitate population-level decision-making and budget planning. Findings may further inform practice guideline development, coverage decisions, and national control program planning by providing the most cost-effective scabies intervention.

Integration of a virtual pharmacy simulation platform in remote learning: Experiences and early lessons of UP College of Pharmacy

@#The COVID-19 pandemic created the urgent need to use online and virtual platforms to facilitate development of skills and competencies as part of remote learning of students. MyDispense®, a learning management system developed by Monash University in Australia, is a practice-based online tool utilized by the University of the Philippines College of Pharmacy to teach dispensing skills in Dispensing and Incompatibilities courses (Phar 154 and Pharm 133). This commentary describes how MyDispense® was used as an online retail pharmacy simulation through the SEIPS (Systems Engineering Initiative for Patient Safety) model, with discussion on how the person, tasks, organization, tools and technology, and virtual environment work within the teaching and learning process in dispensing. The application of MyDispense® as a learning platform both in remote and traditional teaching can be further explored to maximize its features and utility.

Comparative efficacy and safety of oral ivermectin, topical permethrin, and its combination in the treatment of scabies: A systematic literature review

@#<p style="text-align: justify;"><strong>INTRODUCTION:</strong> Oral ivermectin is an approved first-line option to topical permethrin in Europe and Japan for the treatment of classic scabies, while combination oral ivermectin and topical permethrin is used in clinical practice for extensive or recurrent cases. There is unclear evidence on comparative efficacy and safety.</p><p style="text-align: justify;"><strong>OBJECTIVES:</strong> To review the evidence on efficacy and safety of oral ivermectin versus topical permethrin or its combination in the treatment of classic scabies.</p><p style="text-align: justify;"><strong>METHODS:</strong> We searched PubMed from January 1, 2016 up to August 7, 2021 for systematic reviews that included RCTs comparing oral ivermectin versus topical permethrin or its combination in the clinical treatment of scabies. We described the characteristics of included studies, assessed reporting quality, and summarized results and conclusion.</p><p style="text-align: justify;"><strong>RESULTS:</strong> We included five systematic reviews. Permethrin did not differ from oral ivermectin in cure rate at the 3 to 6-week time point but had an earlier cure at 1-2 weeks. Adverse effects did not significantly diff er and were few, mild, and transient with both treatments. The evidence ranged widely from low to high certainty and mainly came from three moderate-to-high quality systematic reviews. Combination oral ivermectin and topical permethrin was ranked higher in efficacy but lower in safety compared to either drug alone in one moderate validity network meta-analysis.</p><p style="text-align: justify;"><strong>CONCLUSION:</strong> There is varying certainty of evidence suggesting comparable efficacy and safety of oral ivermectin versus topical permethrin. Limited evidence suggest higher efficacy and lower safety of combination oral ivermectin and topical permethrin compared to either drug alone. An updated systematic review and network meta-analysis is warranted.</p><p style="text-align: justify;"><strong>KEYWORDS:</strong> scabies, ivermectin, permethrin, effectiveness, efficacy, safety</p>

Integration of a virtual pharmacy simulation platform in remote learning: Experiences and early lessons of UP College of Pharmacy

@#The COVID-19 pandemic created the urgent need to use online and virtual platforms to facilitate development of skills and competencies as part of remote learning of students. MyDispense®, a learning management system developed by Monash University in Australia, is a practice-based online tool utilized by the University of the Philippines College of Pharmacy to teach dispensing skills in Dispensing and Incompatibilities courses (Phar 154 and Pharm 133). This commentary describes how MyDispense® was used as an online retail pharmacy simulation through the SEIPS (Systems Engineering Initiative for Patient Safety) model, with discussion on how the person, tasks, organization, tools and technology, and virtual environment work within the teaching and learning process in dispensing. The application of MyDispense® as a learning platform both in remote and traditional teaching can be further explored to maximize its features and utility.

Evaluation of the patient medication counseling services in the Philippine General Hospital using the CIPP model

@#<p style="text-align: justify;"><strong>Objectives.</strong> The patient medication counseling (PMC) services at Philippine General Hospital (PGH) started 21 years ago. While several changes have been incorporated into the program, no formal evaluation has been conducted to date. The objective of this evaluation was to assess the relevance, usefulness, responsiveness, acceptability, efficiency, impact, and sustainability of the service using the context, input, process (CIPP) model of Stufflebeam.</p><p style="text-align: justify;"><strong>Methods.</strong> The study utilized a mixed-methods study design. Interviews and surveys were conducted on pharmacist-counselors, a purposive sample of doctors, nurses, and other stakeholders. A review of records from the Department of Pharmacy of UP College of Pharmacy (UPCP) and PGH, such as patient and student satisfaction surveys and monthly reports of counseled patients served from 2015 to 2019, was conducted. The results were analyzed using descriptive statistics for quantitative data and content analysis for qualitative data.</p><p style="text-align: justify;"><strong>Results.</strong> Context evaluation revealed that the establishment of PMC resulted from informal interactions with hospitalized patients due to incorrect use of prescription medicines. Correct information was envisioned to address the irresponsible use of medicines. The input evaluation revealed that only 24% (N=75) of the pharmacists are involved in PMC, which comprise only 10% of their workload. There was also a lack of comprehensive training for counseling and insufficient physical facilities. The process evaluation identified lack of time (94%) as a significant limiting factor for the involvement of pharmacists in PMC. The interns became an additional workforce for the service, but scheduling and the consistent availability of both students and faculty-preceptors were experienced. The product evaluation revealed positive perceptions among the pharmacists, faculty, and student interns. From the patient satisfaction survey records of 5,071 patients counseled, 98 to 100% expressed high service satisfaction, and 100% were likely to recommend PMC to other patients. The pharmacists, interns, and faculty-preceptors suggested that PMC improved their confidence, communication skills, and decision-making.</p><p style="text-align: justify;"><strong>Conclusion.</strong> The PMC service is relevant and valuable to ensure patients' rational and quality use of medicines. As a value-added service to existing hospital pharmacy services, it serves as a venue for enhancing soft skills among pharmacists and students alike. However, physical and human resources and current processes need to be upgraded to improve efficiency, ensure sustainability, and expand service coverage to more patients.</p>