Comparative effectiveness and safety of prasugrel and ticagrelor in patients of acute coronary syndrome undergoing percutaneous transluminal coronary angioplasty: A propensity score-matched analysis

Evidence on comparative effectiveness and safety of prasugrel and ticagrelor post-percutaneous transluminal coronary angioplasty is scarce in Indian population. In a 1:1 propensity score-matched cohort with 71 individuals in each group, the incidence of a composite of cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, or coronary revascularization was not significantly different in prasugrel and ticagrelor group (7.04% vs 9.86%; absolute difference, 2.8%; HR, 0.65; 95% CI, 0.21-2.1; p = 0.49). There was no significant difference in bleeding (5.63% vs 9.86%; absolute difference, -4.20%; 95% CI, -13.0%-4.5%) and dyspnea (7.04% vs 12.7%; absolute difference, -5.60%; 95% CI, -15.4%-4.1%).

Assessment of the Practices and Perspectives of Healthcare Providers Towards Utilization of Telemedicine for the Care of Adult Patients With Diabetes Mellitus During the COVID-19 Pandemic in India

Background and purpose The lockdowns and restrictions enforced periodically during the COVID-19 pandemic posed a serious challenge for non-COVID care, especially in diabetes where telediabetes, the utilization of telemedicine consultations for diabetic care, became more necessary than ever before. Although studies have shed light on the perception of patients, there is a paucity of studies from the perspective of healthcare providers, especially in an Indian context. Moving forward, it is imperative to understand the perspectives of telediabetes providers in this domain. Hence, a nationwide survey was carried out to assess providers' practices and perspectives towards using telemedicine for providing diabetes care in India during the COVID-19 pandemic and beyond. Methods An online questionnaire-based, cross-sectional study was carried out involving diabetes care physicians. The study tool was developed after the identification of broad themes and constructs from published literature, national guidelines, and diabetes experts' recommendations, following which, it was validated by six experts and pilot-tested. An online open survey, hosted on a professional platform, was circulated to internists, endocrinologists, and other diabetes care physicians of various institutions, hospitals, and clinics from both public and private sectors across the country through individual and group emails and various mobile messenger services. Results Out of the 239 doctors who responded to the survey, 195 (81.6%) had provided telediabetes services since the COVID-19 outbreak, and 84.1% were actively providing teleconsultations for diabetes at the time of the survey. The majority of participants (63.2%) were private practitioners. Telediabetes engagement was 3.5 hours per day at the peak of the pandemic and reduced significantly to one hour after the end of the pandemic. Video calling was the most preferred modality for consultation, whereas messaging services were preferred for input from the patients. Printed prescription images followed by text messages were the common modalities for sending treatment advice. The overall perception towards telediabetes was positive (50.1%). Most physicians reported being reasonably and somewhat aware (65.6% and 20.5%, respectively) of telemedicine practice guidelines but were not sure about the extent of compliance. Conclusions Our study sheds light not only on the utilization of telediabetes from physicians' perspectives and practices but also on its acceptability while identifying areas requiring clarity and focus moving forward.

Usefulness of the PRECISE-DAPT score at differentiating between ticagrelor and prasugrel for dual antiplatelet therapy initiation

As a part of dual antiplatelet therapy (DAPT), prasugrel or ticagrelor is prescribed along with aspirin to patients of acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). We aimed to assess if the PRECISE-DAPT score, which provides prediction of bleeding during DAPT, could be used to choose between prasugrel and ticagrelor for DAPT initiation. 181 patients out of which 71 received prasugrel and 110 received ticagrelor were enrolled in this prospective cohort study. PRECISE-DAPT score was calculated for everyone and was used to dichotomize patients into two subgroups (score <25 and ≥25). After balancing potential confounders in baseline characteristics of the subgroups using propensity scores, comparison of a composite outcome of 4-point major adverse cardiovascular events (4P-MACE) (i.e., cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, or coronary revascularization due to stent thrombosis) and bleeding (any type as defined by the Bleeding Academic Research Consortium) within 1-year post-PCI was performed among the subgroups using Cox proportional hazards regression. Prasugrel was associated with lower and comparatively higher 4P-MACE events in subgroups with score ≥25 (HR: 0.17; 95% CI, 0.04-0.77) and score <25 (HR: 3.58; 95% CI, 0.62-20.70) respectively. For bleeding outcome, prasugrel trended towards more clinical benefit for scores ≥25 (HR: 0.44; 95% CI, 0.10-1.93) than <25 (HR: 0.93; 95% CI, 0.13-6.58). Therefore, prasugrel was associated with better clinical effectiveness and trended towards a lower bleeding risk compared to ticagrelor within 1-year post-PCI for those with a high PRECISE-DAPT score (≥25). This finding requires validation through larger studies.

Health care associated infections, antimicrobial resistance and outcomes in patients admitted to intensive care unit, India: A five-Year retrospective cohort study

Background

The present study was conducted to study the prevalence of HAIs in a newly established MICU, common microorganisms causing HAIs and their antibiotic-sensitivity profile, and antimicrobial utilization and mortality rate.

Methods

The present retrospective cohort study was carried out at AIIMS, Bhopal (2015-2019). The prevalence of HAIs was determined; sites of HAIs and common causative microorganisms were identified, and their antibiotic-sensitivity profiles were studied. The group of patients with HAIs was matched with a control group drawn from the pool of patients without HAIs; this matching was done with respect to age, gender, and clinical diagnosis. Antimicrobial utilization, Period of ICU stay, comorbidities and patient mortality rates in the two groups were analyzed. The clinical criteria by the CDC- National Nosocomial Infections Surveillance to diagnose HAIs.

Results

A total of 281 ICU patients' records were analyzed. The mean age was 47.21 ± 19.07 years. Of these 89 were found to have developed ICU-acquired HAIs (Prevalance:32%). Bloodstream infections (33%) and respiratory tract infections (30.68%), catheter-associated urinary tract infections (25.56%), and surgical site infections (6.76%) were the commonest. The most frequently isolated microorganism causing HAIs was K. pneumonia (18%), A. baumannii (14%) and E. coli (12%), 31% isolates of which were multidrug resistant. The average length of ICU stay was high in patients with HAIs (13.85 vs 8.2 days). The most common co-morbidity was type 2 diabetes mellitus (42.86%). Prolonged ICU stays [OR 1.13, (95% CI; 0.04-0.10)] and the presence of HAIs [OR 1.18(95%CI; (0.03-0.15)] were associated with an increased risk of mortality.

Conclusions

An increased prevalence of HAIs essentially bloodstream infections and respiratory infections with MDR organisms to antimicrobials in the watch group is highly considerable. Acquisition of HAIs with MDR organisms and increased length of hospital stay are considerable risk factors for increased mortality in ICU-admitted patients. Regular antimicrobial stewardship activities and revising existing hospital infection control policies accordingly may reduce HAIs.

Evaluation of the Anxiolytic Effect of Ramelteon in Various Rat Models of Anxiety

Background Melatonin was found to have anxiolytic properties in several animal and human studies. The melatonin receptor agonist ramelteon might also have a similar anxiolytic action. Objectives The objective of the study was to evaluate the effect of ramelteon in various rat models of anxiety and to explore the possible mechanism of action. Methods The anxiolytic effect was compared between the control group, diazepam group (1 mg/kg and 0.5 mg/kg), and ramelteon group (0.25 mg/kg, 0.5 mg/kg, and 1 mg/kg) by an elevated plus maze, light-dark box, hole board apparatus, and open field test in Sprague Dawley rats. Antagonists flumazenil, picrotoxin, and Luzindole were used to explore the possible mechanism of action of ramelteon if it showed an anxiolytic property. Results Ramelteon as a standalone drug did not show an anxiolytic effect. However, a combination of ramelteon (1 mg/kg) and diazepam (0.5 mg/kg) showed an anxiolytic effect. Conclusion Further studies can evaluate the use of a fixed-dose combination of ramelteon and already-approved anxiolytic drugs to reduce the dose of the latter.

Use of drugs not listed in the National List of Essential Medicines: Findings from a prescription analysis by the Indian Council of Medical Research-Rational Use of Medicines Centres Network in tertiary care hospitals across India

BACKGROUND

The concept of listing essential medicines can lead to improved supply and access, more rational prescribing, and lower costs of drugs. However, these benefits hinge on the prescription of drugs from an Essential Medicines List (EML). Several studies have highlighted the problem of underutilization of EMLs by prescribers. Therefore, as part of prescription research by the Indian Council of Medical Research-Rational Use of Medicines Centres Network, we evaluated the extent of prescription of drugs not listed in the National List of Essential Medicines (NLEM).

MATERIALS AND METHODS

Prescriptions of outpatients from participating centers were included after obtaining verbal/written informed consent as approved by the Ethics Committee, and evaluated for prescription of drugs from the NLEM 2015.

RESULTS

Analysis of 4838 prescriptions from 13 tertiary health-care institutes revealed that 2677 (55.33%) prescriptions had at least one non-NLEM drug prescribed. In all, 5215 (31.12%) of the total 16,758 drugs prescribed were not in NLEM. Of these, 2722 (16.24%) were single drugs and 2493 (14.88%) were fixed-dose combinations (FDCs). These comprised 700 different drug products - 346 single drugs and 354 FDCs. The average number of non-NLEM drugs prescribed per prescription was 1.08, while the average number of all drugs prescribed was 3.35 per prescription. It was also found that some of the non-NLEM drugs prescribed had the potential to result in increased cost (for example, levocetirizine), increased adverse effects (dextromethorphan), and less effectiveness (losartan) when compared to their NLEM counterparts. Nonavailability of an essential drug (oral hydroxocobalamin) was another important finding of our study.

CONCLUSION

This study highlights the extent and pattern of drugs prescribed from outside the NLEM at the tertiary health-care level and the need for training and enhanced awareness among prescribers for greater utilization of the NLEM.

Anti-inflammatory and arthritic activity of zaltoprofen compared to piroxicam in murine models

Zaltoprofen, a unique propionic acid group of NSAIDs, works by blocking the enhancing effects of bradykinin along with the COX-2 enzyme. Therefore, it is of interest to evaluate the acute and chronic anti-inflammatory (arthritic) potential of zaltoprofen versus piroxicam in Murine models. A total of 48 Wister rats (200-250 g) of either sex (24 in each model) were used in the present study. The anti-inflammatory and arthritic potential of zaltoprofen was evaluated and compared by Carrageenan-induced acute inflammation and formalin-induced chronic inflammation. There was a significant inhibition of paw volume (P<0.001) on different time scales with two different doses of the test compound (Zaltoprofen 10 & 20 mg/kg) in the acute inflammation model compared to the negative control (NaCl 10 ml/kg). However, in the chronic inflammation model, zaltoprofen 10 mg/kg and 20 mg/kg doses of the test compound showed a significant reduction in chronic inflammation, comparable to the negative control (NaCl 10 ml/kg), although the potency was lower than the positive control (piroxicam 10 mg/kg) (P 0.05). Thus, zaltoprofen shows significant anti-inflammatory and arthritic effects in both acute and chronic models by inhibiting various inflammatory mediators.

Reversal of hypertensive heart disease: a multiple linear regression model

Background: The development of left ventricular hypertrophy in primary hypertension increases cardiovascular mortality and morbidity. Reversal of left ventricular hypertrophy through therapeutic control of blood pressure reduces the risk of adverse cardiovascular incidents.   Objective:  In our study, we explored for the determinants of left ventricular hypertrophy regression.  Methods: A cohort (n=217) of patients with hypertensive left ventricular hypertrophy was identified by screening consecutive patients in medical outpatient unit. The primary inclusion criteria were (i) Blood pressure more than140/90 mm of Hg (ii) Left Ventricular Mass Index more than 115 and 95 gm/m2 for males and females respectively. Left Ventricular Mass Index was determined by echocardiography at the time of recruitment and after 24 weeks of standard pharmacotherapy. The change in Left Ventricular Mass Index was modelled using multiple linear regression with both categorical and continuous explanatory variables. The effect of drug therapy on change in Left Ventricular Mass Index was tested in the model with dummy coded variables for the treatment categories.  Results: In simple linear regression, the variables significantly correlating with change in Left Ventricular Mass Index were baseline Left Ventricular Mass Index (r=0.62, p<0.001), change in systolic blood pressure (r=0.22, p=0.001), change in mean blood pressure (r=0.16, p=0.02), baseline systolic blood pressure (r=0.15, p=0.02), age (r=0.12, p=0.09) and diabetes (r=0.12, p=0.09). The best fit model (r2=0.408) retained baseline Left Ventricular Mass Index (β=0.59, p<0.001), change in systolic blood pressure (β=0.14, p=0.01) and diabetes (β=-0.104, p=0.05) as the significant predictors. Introduction of treatment effect into the model non-significantly increased the fit of the model (r2=0.414, p=0.27-0.98).   Conclusions: Pre-treatment Left Ventricular Mass Index and reduction in systolic blood pressure were the major determinants of left ventricular hypertrophy regression. We also observed that there is lesser left ventricular hypertrophy regression in diabetic patients, warranting future research to explore glycaemic control as a modifiable factor in left ventricular hypertrophy reversal.

COVID-19 and thrombotic complications-the role of anticoagulants, antiplatelets and thrombolytics

Coronavirus disease 2019 (COVID-19) is a global pandemic the world is dealing with currently. Clinical evidences suggest that the patients are predisposed to both venous and arterial thrombotic complications. This is because of severe inflammatory responses, injury to endothelium and activation of platelets leading to increased coagulation. Additionally, individuals who are already receiving antithrombotic drug therapy for various cardiovascular diseases and complications might contract the disease in which case, attention should be given to the choice and duration of the therapy besides close monitoring of biochemical blood parameters. Herein, we review the incidences of thrombotic complications and their outcomes in COVID-19 patients as reported till date, while understanding the prophylactic and therapeutic roles of anticoagulants, antiplatelets and thrombolytics in the management of this severe viral respiratory illness.

Carbovigilance: curtailing the global pharmaceutical carbon footprint

Cutting emissions from the pharmaceutical industry is essential to curtailing the carbon footprint of healthcare globally. It is high time that the industry owned up to its carbon emission and took measures to curb back. In this study, we show how many of the leading global pharmaceutical firms have been able to reduce their carbon footprint while being profitable, indicating that modifications to reduce emissions would not pose a financial burden. We have come up with a 'modified emission intensity' index and a new term 'carbovigilance' in an attempt to bring this aspect of the pharmaceutical companies to light, while also encouraging them to work towards making positive contributions to a greener and healthier earth.

Topical steroid containing combinations: Burden of adverse effects and why the recent regulatory action may not be enough

OBJECTIVES AND METHODS

In September 2018, the government of India banned 328 fixed dose combinations (FDCs), 24 of which are combinations containing topical steroids. To assess what impact can be expected from this regulatory action, we analyzed reports of adverse drug events due to topical corticosteroids at a hospital-based pharmacovigilance center between January 2017 and August 2018.

RESULTS

Among 34 different steroid-containing FDCs responsible for 485 reports of ADEs with topical steroids, only three preparations, accounting for 50.10% of ADEs, come under the umbrella of the recent ban. Clobetasone propionate (68.87%) and betamethasone (28.45%) were the corticosteroids most frequently associated with adverse events. Most of the steroid preparations (87.84%) had been bought without a prescription for the treatment of dermatophytoses (76.70%). Males (77.73%) were predominantly affected, and nearly half (47.43%) of the patients were between 21 and 30 years of age. Skin atrophy (50.10%), striae (25.54%), and hypopigmentation (19.79%) were the major ADEs.

CONCLUSION

Nearly half of the cutaneous adverse effects were due to topical steroid combinations which are still widely available over the counter.

How to choose and interpret a statistical test? An update for budding researchers

Postgraduate medical students are often not able to select and interpret the findings of statistical tests during their thesis or research projects. To go ahead with selection of tests to be performed, researchers need to determine the objectives of study, types of variables, analysis and the study design, number of groups and data sets, and the types of distribution. In this review, we summarize and explain various statistical tests to help postgraduate medical students to select the most appropriate techniques for their thesis and dissertation.

The safety, tolerability and mortality reduction efficacy of remdesivir; based on randomized clinical trials, observational and case studies reported safety outcomes: an updated systematic review and meta-analysis

INTRODUCTION

Remdesivir, an experimental antiviral drug has shown to inhibit severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), both in vitro and in vivo. The present systematic review and meta-analysis were performed to quantify the safety and tolerability of remdesivir, based on safety outcome findings from randomized controlled trials, observational studies and case reports of remdesivir in coronavirus disease 2019 (COVID-19) patients.

METHODS

We have performed a systematic search in the PubMed, Google Scholar and Cochrane Library using specific keywords such as 'COVID-19' OR 'SARS CoV-2' AND 'Remdesivir'. The study endpoints include total adverse events (AEs), serious adverse events (SAEs), grade 3 and grade 4 AEs, mortality and drug tolerability. Statistical analysis was carried out by using Revman 5.4 software.

RESULTS

Total 15 studies were included for systematic review, but only 5 randomized clinical trials (RCTs) (n = 13,622) were included for meta-analysis. Visual inspection of the forest plots for remdesivir 10-day versus placebo and remdesivir 10-day versus 5-day groups revealed that there is a significant difference in SAEs [10-day remdesivir versus control (odds ratio [OR] = 0.55, 0.40-0.74) p = 0.0001; I 2 = 0%; 10-day remdesivir versus 5-day remdesivir (OR = 0.56, 0.38-0.84) p = 0.005; I 2 = 13%]. In grade 4 AEs, there is a significant difference in 10-day remdesivir versus control (OR = 0.32, 0.19-0.54) p = 0.0001; I 2 = 0%, but not in comparison to 5-day remdesivir (OR = 0.95, 0.59-1.54) p = 0.85; I 2 = 0%. But there is no significant difference in grade 3 AEs [remdesivir 10 day versus control (OR = 0.81, 0.59-1.11) p = 0.19; I 2 = 0%; 10-day remdesivir versus 5-day remdesivir (OR = 1.24, 0.86-1.80) p = 0.25; I 2 = 0%], in total AEs [remdesivir 10 day versus control (OR = 1.07, 0.66-1.75) p = 0.77; I 2 = 79%; remdesivir 10 day versus 5 day (OR = 1.08, 0.70-1.68) p = 0.73; I 2 = 54%)], in mortality [10-day remdesivir versus control (OR = 0.93, 0.80-1.08) p = 0.32; I 2 = 0%; 10-day remdesivir versus 5-day remdesivir (OR = 1.39, 0.73-2.62) p = 0.32; I 2 = 0%)] and tolerability [remdesivir 10 day versus control (OR = 1.05, 0.51-2.18) p = 0.89; I 2 = 65%, 10-day remdesivir versus 5-day remdesivir (OR = 0.86, 0.18-4.01) p = 0.85; I 2 = 78%].

DISCUSSION & CONCLUSION

Ten-day remdesivir was a safe antiviral agent but not tolerable over control in the hospitalized COVID-19 patients with a need of administration cautiousness for grade 3 AEs. There was no added benefit of 10- or 5-day remdesivir in reducing mortality over placebo. To avoid SAEs, we suggest for prior monitoring of liver function tests (LFT), renal function tests (RFT), complete blood count (CBC) and serum electrolytes for those with preexisting hepatic and renal impairments and patients receiving concomitant hepatotoxic or nephrotoxic drugs. Furthermore, a number of RCTs of remdesivir in COVID-19 patients are suggested.

PLAIN LANGUAGE SUMMARY

Ten-day remdesivir is a safe antiviral drug with common adverse events in comparison to placebo.The rate of serious adverse events and grade 3 adverse events were significantly lower in 10-day remdesivir in comparison to placebo/5-day remdesivir.There was no significant difference in the rate of tolerability and mortality reduction in 10-day remdesivir over placebo/5-day remdesivir.There were no new safety signals reported in vulnerable populations, paediatric, pregnant and lactating women.

A multicentre point prevalence survey (PPS) of antimicrobial use amongst admitted patients in tertiary care centres in India

OBJECTIVES

Data from point prevalence surveys (PPSs) in India are scarce. Conducting PPSs is especially challenging in the absence of electronic medical records, a lack of dedicated resources and a high patient load in resource-poor settings. This multicentre survey was conducted to provide background data for planning and strengthening antimicrobial stewardship programmes across the country.

METHODS

This inpatient PPS was conducted over 2 weeks in May 2019 simultaneously across five study centres in India. Data about patient characteristics, indications for antimicrobials use and details of each antimicrobial prescribed including supportive investigation reports were collected in predesigned forms.

RESULTS

A total of 3473 admitted patients in wards and ICUs were covered across five study centres. Of these, 1747 (50.3%) patients were on antimicrobials, with 46.9% patients being on two or more antimicrobials. Out of the total antimicrobials prescribed, 40.2% of the antimicrobials were prescribed for community-acquired infection requiring hospitalization followed by surgical prophylaxis (32.6%). Third-generation cephalosporins and drugs from the 'Watch' category were prescribed most commonly. Only 22.8% of the antimicrobials were based on microbiology reports.

CONCLUSIONS

The survey demonstrated a high use of antimicrobials in admitted patients with a considerable proportion of drugs from the 'Watch' category. The targets for interventions that emerged from the survey were: improving surgical prophylaxis, decreasing double anaerobic cover, initiating culture of sending cultures and de-escalation with targeted therapy.

Medication adherence, recall periods and factors affecting it: A community-based assessment on patients with chronic diseases in urban slums

OBJECTIVE

To evaluate medication adherence, the effect of recall periods on self-reported adherence and factors influencing medication adherence among patients of chronic diseases, such as hypertension and diabetes, particularly in the community.

METHODS

A cross-sectional cohort study was conducted among individuals with hypertension and/or diabetes coming as outpatients in community camps organised in a cluster of urban slums. Responses towards questions regarding self-reported quantitative and qualitative adherence for one week and one month along with information on pill burden, socio-demographic and other factors were recorded using a mobile application.

RESULTS

Among 379 participants living in urban slum communities, who were prescribed anti-hypertensive or oral anti-diabetic medications previously, mean medication adherence over previous one week was 67.99% (standard deviation (SD) ± 38.32) and 6.87 (SD ± 3.62) on a ten-point numeric scale. The medication adherence for one month showed a strong significantly positive correlation with that of 1 week for both percentage-based (r = +0.910, 95% CI = 0.864 to 0.950, P < .0001) and Likert (ρ = +0.836, 95% CI = 0.803 to 0.863, P < .0001) scales. Age (r = 0.219, 95% CI = 0.120 to 0.313, P = .043) and pill burden (r = -0.231, 95% CI = -0.145 to -0.322, P < .0001) were found to significantly affect medication adherence. The odds of random blood sugar reduction were found to be significant (OR 1.98, 95% CI = 1.30 to 3.00, P = .001) with adequate adherence. A linear regression equation was developed to predict medication adherence percentage for a patient which was found to have 61.8% predictive power using multilayer perceptron modelling.

CONCLUSION

Overall, medication adherence was sub-optimal. Adherence assessments can be reliably performed using either one week or one month recall periods. With further refinement and validation, the regression equation could prove to be a useful tool for physicians.

A multicentric knowledge-attitude-practice survey in the community about antimicrobial use and resistance in India

BACKGROUND

To address the reasons for inappropriate use of antimicrobials, it is important to understand the knowledge, attitude and practices (KAP) of all pertinent stakeholders. This multicentric survey is aimed at understanding the KAP quotients of the community regarding antimicrobial use and antimicrobial resistance (AMR), as such information is lacking in India.

METHODS

A cross-sectional survey was conducted by face-to-face interviews across five centers in India using a validated, field-tested questionnaire incorporating KAP domain questions. Scores were appropriately assigned to the questions.

RESULTS

The mean (SD) age of the respondents was 35.2 (12.61) y and 62% had a graduate or higher level of education. The median (IQR) KAP scores were 10 (8-12), 5 (3-5) and 2 (2-3) out of a maximum of 18, 5 and 6, respectively. Higher educational and socioeconomic levels were associated with better attitude scores, but knowledge levels were comparable. Correlations between KAP scores were poor.

CONCLUSIONS

This study reveals that laypeople have appropriate knowledge and attitude regarding antibiotic use and AMR to some degree but there are important lacunae and practices are often wanting. These issues need to be addressed in sustained public awareness and motivation campaigns to improve the rational use of antibiotics in India.

Famotidine Repurposing for Novel Corona Virus Disease of 2019: A Systematic Review

Background COVID-19 caused by SARS-CoV-2 was declared as a global pandemic by the WHO. Famotidine is a histamine-2 (H2) receptor antagonist which blocks the H2 receptors in the parietal cells, decreasing gastric acid secretion. Our review aims to study all the available scientific evidence on famotidine research outcomes systematically to introspect its clinical efficacy and probable mechanisms and clinical efficacy against SARS-CoV-2.

Methodology An electronic search of PubMed, Scopus and Google Scholar was performed using MeSH terms “SARS CoV-2” OR “COVID-19” AND“FAMOTIDINE”. Relevant informationwas extracted from studies reporting the efficacy of famotidine in COVID-19.

Results We found a total of 32 studies, out of which only 14 were relevant and were included in our review.Molecular computational studies showed that famotidine selectively acts on viral replication proteases papain-like protease (PLpro) and 3-chymotrypsin-like protease (3CLpro). Additionally, it acts via inverse-agonism on the H2 receptors present in neutrophils and eosinophils which leads to inhibition of cytokine release. Clinical study findings have pointed toward significant improvements in COVID-19 patient-reported symptoms in non-hospitalized patients and reduction in intubation or death in critically ill patients associated with the usage of famotidine. However,in one of the studies,famotidine has failed to show any significant benefit in reducing mortality due to COVID-19.

Conclusion Famotidine has the potential to answer the ongoing global challenge owing to its selective action on viral replication. Additionally, clinical findings in COVID-19 patients support its efficacy to reduce clinical symptoms of COVID-19.We suggest that further optimally powered randomized clinical trials should be carried out to come up with definitive conclusions.

Outpatient prescribing trends, rational use of medicine and impact of prescription audit with feedback at a tertiary care centre in India

BACKGROUND

Rational use of medicines (RUM) is highly desired worldwide yet many shortcomings are found. This study aims to evaluate prescription pattern and RUM using World Health Organisation (WHO) prescribing indicators. The impact of audit and feedback has also been studied, along with comparison with published data.

METHODS

A cross-sectional observational study was conducted in the outpatient department setting of a tertiary care centre in central India. Data were collected from 2719 prescriptions across different departments from hospital pharmacies from 2016 to 2018 at different time periods. The data was analysed using WHO core prescribing indicators.

RESULTS

Average number of drugs per prescription was found to be 2.53 ± 1.23 (WHO optimal value ≤ 2). The mean values of prescribing indicators for antibiotics (19.82% vs. ≤ 30%) and injection prescribing (1.98% vs. ≤10%) were within optimal values. Generic prescribing (15.96% vs. 100%) and prescribing from National List of Essential Medicines (NLEM; 37.37% vs. 100%) were found to be significantly lesser. Annual audit and feedback showed improvement in generic prescribing and prescribing from NLEM, but the other trends continued to be similar.

CONCLUSION

While use of antibiotics and injections among outpatients was found to be rational, there is scope of improvement in most domains that can be addressed with appropriate interventions.

A Novel Metric System to Quantify Antibiotic Consumption in Paediatric Population: A Hospital Based, Biphasic Pilot Study

BACKGROUND: The Anatomical Therapeutic Chemical Classification / Defined Daily Dose (ATC/DDD) system recommended by World Health Organization is accepted worldwide as the standard method of quantification of drug consumption. However, owing to individual variation in body weight, the ATC/DDD system cannot be used for comparison across paediatric population. OBJECTIVE: This study aimed to develop a novel metric system for standard quantification of antibiotic consumption in paediatric population. METHOD: The standard unit of drug quantification in adult population is DDD/100 patient days (PD). We conceived a new unit of DDD/1000 kg-days (KD) where KD is the product of the body weight and length of hospital stay of an individual patient. We simulated the quantification and comparison of drugs in a computer model of five virtual paediatric hospitals (H1 to H5, n=100, 200, 100, 100, 100 respectively). We re-applied the metric system on two, real world, hospital-based, time cohorts (TC) (TC18, n=38 and TC19, n=47) of 2 weeks each, in two consecutive years. RESULTS: The body weights (mean±SD) in H1-H5 were 5.7±3.0, 5.7±2.8, 25.3±8.5, 20.6±11.7 and 19.8±11.4 kg, respectively. The antibiotic consumption in terms of DDD/100 PD and DDD/1000 KD in the five hospitals was 1.26, 1.20, 5.52, 4.41 and 2.00, and 2.24, 2.14, 2.22, 2.17 and 1.06 respectively. In TC18 and TC19, the mean body weight, DDD/100 PD and DDD/1000 KD were 12.24±13.17, 30.93, 20.34 and 19.51±12.28, 11.99, 6.23, respectively. CONCLUSION: DDD/1000 kg-days is a potential standard unit for drug quantification in paediatric population independent of weight distribution and size of the study sample. The universal application and comparison across diverse samples can generate useful information for resource allocation, anti-microbial stewardship, disease burden and drug use, and can help in taking policy decisions to improve healthcare delivery in the paediatric population.

Understanding the molecular-pharmaceutical basis of sartan recalls focusing on valsartan

Angiotensin receptor blockers (ARBs) or the 'sartans' are widely used for the management of hypertension and heart failure. There have been a series of recent incidents where drug formulations containing different ARBs as active pharmaceutical ingredients have been recalled by various pharmaceutical firms. This article addresses valsartan as well as other sartan recalls besides discussing the recent recalls of ranitidine and metformin, giving insights into the molecular-pharmaceutical basis of the recalls. A thorough literature search of PubMed/Medline and Google Scholar databases was performed to identify all relevant articles and information published up to 29th April 2020 using Medical Subject Headings (MeSH terms) and Boolean operators. We also searched for relevant information on the web using web-browsers and reference lists from original research papers and review articles. The main impurity found was N-nitrosodimethylamine (NDMA) which was thought to be formed due to a change in the manufacturing process of valsartan. Besides, other impurities such N-nitrosodiethylamine (NDEA) and N-nitroso-N-methyl-4-aminobutyric acid (NMBA) were found in batches of other sartans, such as losartan and irbesartan. All of these are carcinogens and harmful if consumed at a level beyond a certain acceptable daily limit. Ranitidine, and more recent metformin recalls, have also been linked with valsartan in view of the presence of NDMA, the same impurity. Safety of ARBs is a major concern among healthcare professionals after the recalls of valsartan in the recent years. Periodic quality assessment of the manufacturing process and the drugs is key to ensure safe, effective and high-quality drugs for the global population. Additionally, practising physicians need to be vigilant in reporting adverse events in their patients receiving treatments.

Regression of the Left Ventricular Hypertrophy in Patients with Essential Hypertension on Standard Drug Therapy

 PURPOSE: The American College of Cardiology/ American Heart Association 2017 and European Society of Cardiology/European Society of Hypertension 2018 guidelines were a paradigm shift in hypertension management in contemporary medicine. Lowering of blood pressure to less than 130 (systolic) and 80 (diastolic) mm of Hg irrespective of cardiovascular risk is recommended. While intensive blood pressure control is commonly achievable with rational pharmacotherapy, the magnitude of left ventricular hypertrophy regression is an independent factor in improvement in cardiovascular health. The regression of left ventricular hypertrophy has been adjudged as a clinically useful surrogate marker that reflects the efficacy of hypertension treatment. Though angiotensin converting enzyme inhibitors/ angiotensin receptor blockers (ACEI/ARB) are the preferred initial drug for greater regression of left ventricular mass, the choice of add-on therapy, if required, is still debatable. Therefore, in our observational study, we sought to compare the reduction in left ventricular mass index in hypertensives with left ventricular hypertrophy on standard ACEI/ARB based drug therapy.  MATERIALS AND METHODS: The cohort (n=217) comprised of patients with uncontrolled hypertension (blood pressure>140/90 mm of Hg) and left ventricular hypertrophy (left ventricular mass index>115 and 95 gram/square meter in males and females respectively). The add-on drug in ACEI/ARB therapy was either thiazide diuretics (TD) or calcium channel blockers (CCB). Four sub-cohorts were constituted: mono-therapy - group A (n=70, ACEI/ARB), dual-therapy - group B (n=48, ACEI/ARB+TD) and  group C (n=51, ACEI/ ARB+CCB), triple therapy - group D (n=48, ACEI/ ARB+TD+CCB). Left ventricular mass index was determined using echocardiography at baseline and after 24 weeks of therapy.  RESULTS: There was no significant difference in baseline clinical or demographic variables between group B and group C. Baseline blood pressure and duration of hypertension was greater in group D compared to group A (P<0.001). The reduction in left ventricular mass index (mean ±SD) in the four groups (A to D) was 16.7±18.7, 21.0±20.8, 20.5±15.5  and 29.1±21.5 g/m2  respectively (D>A, P=0.011, B versus C, P=1.00). The corresponding change in blood pressure (systolic/diastolic) was 18.5±13.6/8.9±11.2, 27.5±19.2/12.2±9.3, 23.4±16.7/ 5.4±10.1, 26.6±19.5/10.7±12.8 mm of Hg respectively (systolic, B>A, P=0.027, D>A, P=0.048) (diastolic, B>C, P=0.013).  CONCLUSION: Anti-hypertensive treatment with angiotensin converting enzyme inhibitors/angiotensin receptor blockers-based therapy produced graded regression of left ventricular hypertrophy with monotherapy, dual therapy and triple therapy.  In dual therapy, add-on of either thiazide diuretics or calcium channel blockers to angiotensin converting enzyme inhibitors/angiotensin receptor blockers showed equal efficacy in regression of left ventricular hypertrophy independent of blood pressure reduction.

The Potential Therapeutic Role of Proton Pump Inhibitors in COVID-19: Hypotheses Based on Existing Evidences

Although the major therapeutic uses of the proton pump inhibitors are in gastric-acid related diseases, evidences are suggestive of a pleiotropic nature of the compounds. We comment on the probable pathways and cellular machineries via which proton pump inhibitors could show beneficial therapeutic effects against SARS-CoV-2 based on the existing evidences. Proton pump inhibitors have shown antiviral potencies in various in vivo and in vitro studies. Some of the major possible ways through which they can act against SARS-CoV-2 are by exerting anti-inflammatory and anti-fibrotic effects, via vacuolar ATPase pumps leading to raised endolysosomal pH and by targeting endosomal complexes. The current pandemic has put forward a challenge to find treatment options. Although the potential roles of proton pump inhibitors against SARS-CoV-2 have been discussed in recent publications, the clinical evidences for their real-world effectiveness do not point towards a beneficial effect clearly yet. We suggest that although proton pump inhibitors should strongly be considered as potential therapeutic options for COVID-19, larger studies in the form of randomized controlled trials would be required to arrive at a definite conclusion.

Prasugrel Versus Ticagrelor in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention: a Systematic Review and Meta-analysis of Randomized Trials

PURPOSE

Dual antiplatelet therapy (DAPT) with aspirin and ticagrelor or prasugrel is the mainstay of treatment for patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). We aimed to systematically perform a head-to-head comparison of ticagrelor vs prasugrel in terms of efficacy and safety.

METHODS

We searched PubMed/Medline, EMBASE and Cochrane Central Register of Controlled Trials (CENTRAL) for relevant published randomized controlled trials (RCTs). The primary outcome was adverse cardiovascular events and secondary outcome was bleeding events. A random-effects meta-analysis was used to obtain the pooled estimate of each outcome.

RESULTS

Nine RCTs with a total number of 6990 patients (3550 treated with prasugrel and 3481 treated with ticagrelor) were included. No significant difference between prasugrel and ticagrelor was observed in terms of mortality (OR 0.86, 95% CI 0.66 to 1.13, P = 0.28), major adverse cardiovascular events (MACEs) (OR 0.85, 95% CI 0.70 to 1.03, P = 0.10), non-fatal myocardial infarction (OR 0.78, 95% CI 0.57 to 1.06, P = 0.11), stroke (OR 1.02, 95% CI 0.60 to 1.72, P = 0.95), stent thrombosis (OR 0.76, 95% CI 0.47 to 1.21, P = 0.25), thrombolysis in myocardial infarction (TIMI) defined major (OR 0.94, 95% CI 0.19 to 4.67, P = 0.94), minor (OR 0.35, 95% CI 0.08 to 1.62, P = 0.18) and minimal (OR 0.48, 95% CI 0.19 to 1.18, P = 0.11) bleeding and Bleeding Academic Research Consortium (BARC) defined bleeding (OR 1.06, 95% CI 0.82 to 1.36, P = 0.68).

CONCLUSION

In patients with ACS undergoing PCI, both prasugrel and ticagrelor were associated with similar cardiovascular outcomes and adverse bleeding events.

Development and validation of a mathematical model to quantify antibiotic consumption in paediatric population: A hospital-based pilot study

WHAT IS KNOWN AND OBJECTIVES

A standard drug classification system and a fundamental measurement unit of drug consumption are prerequisites in a healthcare information system for generating quality data on drug use. Globally, the ATC/DDD (Anatomical Therapeutic Chemical Classification/Defined Daily Dose) system recommended by WHO is accepted as the international standard. However, owing to variability in body weight, it cannot be used directly in paediatric population. In our work, we aimed to develop a standard method of quantification of antibiotic consumption in paediatric population using a modified approach of the ATC/DDD system.

METHOD

We developed a mathematical model in a simulated paediatric cohort (n = 1000) and calculated antibiotic consumption in units of days of therapy (DOT) and DDD/100 patient days (PD). We validated the model in an observational cohort (n = 38) of inpatients admitted in Paediatric Department of a tertiary care centre.

RESULTS

Model simulation showed near perfect positive correlation (R = .99-1.00) between DOT and DDD/100 PD in discrete weight based sub-cohorts (weight 1-10 kg). In the validation cohort, consumption of antibiotics was 121.76 and 33.16 in terms of DOT and DDD/100 PD respectively. Strong positive correlation between the two units (R = .73) was obtained. The correlation was better in predefined age and weight categories as compared to the uncategorised consumption (R = .78-.97). The model was proved validated when weight specific (in sub-cohorts of patients weighing 4, 5, 7 kg) DDD/100 PD and DOT also showed near perfect positive correlation (R = .96-.99).

WHAT IS NEW AND CONCLUSION

Weight specific DDD/100 PD can be explored further as a tool to standardise the quantification and comparison of consumption of drugs in paediatric population.

Tigecycline-Induced Severe Hypoglycemia in a Non-Diabetic Individual: A Case Report and Brief Review of Tigecycline-Induced Severe Hypoglycemia

Patient: Male, 45-year-old

Final Diagnosis: Tigecycline-induced severe hypoglycemia in a non-diabetic individual

Symptoms: Hypoglycemia

Medication:—

Clinical Procedure: —

Specialty: Critical Care Medicine • Metabolic Disorders and Diabetics • Pharmacology and Pharmacy

Prediction of Left Ventricular Mass Index Using Electrocardiography in Essential Hypertension - A Multiple Linear Regression Model

Background

Current electrocardiography (ECG) criteria indicate only the presence or absence of left ventricular hypertrophy (LVH). LVH is a continuum and a direct relationship exists between left ventricular mass (LVM) and cardiovascular event rate. We developed a mathematical model predictive of LVM index (LVMI) using ECG and non-ECG variables by correlating them with echocardiography determined LVMI.

Patients and Methods

The model was developed in a cohort of patients on treatment for essential hypertension (BP>140/90 mm of Hg) who underwent concurrent ECG and echocardiography. One hundred and forty-seven subjects were included in the study (56.38±11.84 years, 66% males). LVMI was determined by echocardiography (113.76±33.06 gm/m²). A set of ECG and non-ECG variables were correlated with LVMI for inclusion in the multiple linear regression model. The model was checked for multicollinearity, normality and homogeneity of variances.

Results

The final regression equation formulated with the help of unstandardized coefficients and constant was LVMI=18.494+ 1.704 (aLL) + 0.969 (RaVL+SV3) + 0.295 (MBP) + 15.406 (IHD) (aLL – sum of deflections in augmented limb leads; RaVL+SV3 – sum of deflection of (R wave in aVL + S wave in V3); MBP – mean blood pressure; IHD=1 for the presence of the disease, IHD=0 for the absence of the disease).

Conclusion

In the model, 50.4% of the variability in LV mass is explained by the variables used. The findings warrant further studies for the development of better and validated models that can be incorporated in microprocessor-based ECG devices. The determination of LVMI with ECG only will be a cost-effective and readily accessible tool in patient care.

A Cost Variation Analysis of Drugs Available in the Indian Market for the Management of Thromboembolic Disorders

Introduction

Cardiovascular diseases (CVDs) have become one of the major causes of mortality among the Indian population. The costs of anticoagulant, antiplatelet, and fibrinolytic drugs that are used to treat various thromboembolic disorders and used as prophylactics for individuals at high risk of CVDs vary widely in the Indian pharmaceutical market. The aim of this study was to evaluate the cost variation of different brands of drug formulations and to compare the branded prices of the formulations with their corresponding generic and ceiling prices.

Materials and methods

This study followed an analytical method. Costs of various drugs were obtained from the October - December 2019 edition of the Current Index of Medical Specialities (CIMS) and December 2019 edition of the Monthly Index of Medical Specialities (MIMS) India. Cost ratio and percentage variation in cost per tablet/capsule/injection of different drugs available in the Indian market and manufactured by different pharmaceutical companies were calculated. Comparison of the branded prices with generic and ceiling prices was also performed for different drugs by using information available from official websites.

Results

Percentage variation in cost among the commonly prescribed drugs for the management of thromboembolic disorders was found to be highest for prasugrel 10 mg tablet (1,408.44%) while it was lowest for fondaparinux 2.5 mg / 0.5 ml injection (20%). Among the commonly prescribed drugs that are under Drugs Prices Control Order (DPCO) price control, streptokinase 1.5 MIU injection had the highest cost variation (132.02%) while enoxaparin 60 mg / 0.6 ml injection had the lowest (4.99%). Among some of the important formulations under the Jan Aushadhi scheme (JAS), acenocoumarol 2 mg tablet had the highest cost variation (680.09%) and cilostazol 50 mg tablet had the lowest (55.46%).

Conclusions

Wide differences exist in the costs of various anticoagulants, antiplatelets, and fibrinolytics available in the Indian market. The prescribing physician should be aware of theses variations and prescribe medicines accordingly, keeping in mind the financial status of the patients.

A pilot point prevalence study of antimicrobial drugs in indoor patients of a teaching hospital in Central India

Aim

To evaluate the point prevalence of antimicrobial drug use by using point prevalence survey method.

Methodology

A cross-sectional point prevalence study was done on patients admitted in AIIMS Bhopal hospital. This study included all inpatients receiving an antimicrobial that were on the ward at 8 AM on a specific day in May 2018. Information regarding age, gender, occupation, income group, diagnosis, patient's present/past medical history, treatment, any adverse drug reactions, and investigations are recorded in a pro forma.

Results

A total of 77 patients (31.95%) were included out of total 241 patients who received at least one antimicrobial. Of patients who received at least one antimicrobial, diagnosis was mentioned in 83.11% of prescriptions. Targeted treatment was given to 10.38% of patients. Reasons for antimicrobial were recorded in 12.98% of patients. Most common healthcare infection recorded was catheter-associated urinary tract infections followed by postoperative surgical site infections. Penicillin with beta lactamase inhibitors was most commonly prescribed antibiotic group followed by third generation cephalosporins and fluoroquinolones. Stop or review date was recorded in 19.48% of patients. Parenteral administration was given to 30.55% of patients. Compliance to guidelines was followed in 64.11% of patients. Local antibiotic guideline and antibiogram were available in hospital. Biomarkers were utilized in 9.77% of patients to guide the choice of therapy.

Conclusion

Availability of antibiotic policy, antibiogram, local antibiotic guidelines, drugs, and therapeutic committee were some of the encouraging findings. Diagnosis was mentioned in majority of prescriptions. Most patients were prescribed oral antimicrobial drugs, which can reduce complications with parenteral route. Underutilizations of microbiological facilities, prolonged use of antibiotics for surgical prophylaxis, and polypharmacy were areas of concern.

Early onset gestational diabetes mellitus: A case report and importance of early screening

Gestational diabetes mellitus (GDM) is defined as any degree of glucose intolerance with onset or first recognition during pregnancy. Screening for GDM is usually done at 24–28 weeks of gestation. In this case, we report a 31–year-old woman who developed gestational diabetes at 6 weeks in two successive pregnancies. She was in the perceived high-risk group to develop gestational diabetes. The first pregnancy terminated in spontaneous abortion at 10 weeks. In the second pregnancy, institution of insulin therapy at diagnosis was associated with a successful outcome. This case highlights the need of screening for gestational diabetes at the first antenatal visit in the high-risk group.

Medication concordance in modern medicine - A critical appraisal from an Indian perspective

Modern medicine encompasses a holistic approach toward patient care that seeks to integrate the social, psychological, and pathological aspects of a disease. In line with this, the traditional model of improving treatment outcomes through improved compliance or adherence has given way to the concept of “concordance” that respects the integrity of the patient, autonomy, and self-determination. A self-conscious patient actively and equally participating in her or his comprehensive healthcare can bring a paradigm shift in the perceptions and functioning of the healthcare sector. Medication concordance can be expected to play a key role in improving patient well-being, clinical outcomes, and healthcare delivery. However, it is fraught with numerous questions to be addressed ranging from lack of clarity or standard protocol, medicolegal intricacies, cultural–linguistic barriers, illiteracy, shortage of time, infrastructure, and manpower. There are major challenges in the effective implementation of this initiative which has definite potential to prove beneficial in Indian healthcare settings. The success of this novel approach can only be accomplished by coordinated, inclusive, and persistent efforts from all participants of healthcare with fostering of a milieu of trust, belief, and communication. A systematic literature search was conducted using key words from relevant articles and MeSh terms on Google Scholar and PubMed. Data were abstracted according to their relevance to subheadings of the review and synthesis of concepts was done through multiple reviews by atleast two reviewers for any subsection.

Fixed-drug Eruptions: What can we Learn from a Case Series?

BACKGROUND

A fixed-drug eruption (FDE) is a unique cutaneous adverse drug effect in the form of recurrent lesions at the same site after re-exposure to the offending agent.

AIM

The aim of the study was to identify changes in trends in fixed drug eruptions with regard to causative drug or patient risk factors.

METHODS

Cases of FDEs encountered between March 2014 to May 2017 during routine pharmacovigilance activities were analyzed.

RESULTS

FDEs made up 8.4% of total adverse drug reactions and 11.1% of cutaneous reactions. Majority of the patients were adults between 18 and 45 years old. The average lag period between drug intake and appearance of FDE was 2.04 days. Commonly affected sites were extremities, lips, head and neck, and genitalia. Number of FDE lesions varied from 1 to > 6, with nearly half the patients (46%) presenting with a single lesion. Antimicrobials (80.6%) and nonsteroidal anti-inflammatory drugs (20.8%) were most frequent drugs implicated. Route of administration was oral for all causative drugs. History of an FDE was positive in 26 (50.2%) of the cases. Majority of the patients (21 out of 25 or 84%) whose lesions appeared within minutes to hours of suspected drug intake had a history of FDE. Furthermore, 66.7% of patients with multiple lesions had a history of FDE while only 34.8% of patients with a single lesion had such a history.

CONCLUSION

FDEs are common cutaneous reactions with antimicrobials and anti-inflammatory agents, with increased likelihood of extensive and multiple lesions in patients with a history of FDE.