A Review of the Safety and Efficacy of Bexagliflozin for the Management of Type 2 Diabetes

OBJECTIVE

To review the pharmacology of bexagliflozin in addition to its safety and efficacy from available clinical trials used for its approval, as well as available clinical evidence to date.

DATA SOURCES

A search of the National Institutes of Health Clinical Trials Registry (http://www.clinicaltrials.gov) and PubMed database was performed from inception through June 1, 2023.

STUDY SELECTION AND DATA EXTRACTION QUANTIFICATION

The following study designs were included: meta-analyses, systematic review, clinical trial, or observational study design. Abstracts and drug monographs were also reviewed. Narrative or scoping reviews were excluded. Only articles in the English language and those evaluating the pharmacology, pharmacokinetics, safety, or efficacy of bexaglifozin in humans were included.

DATA SYNTHESIS

Bexagliflozin reduces hemoglobin A1c ~0.5% with similar reductions in systolic blood pressure and body weight to other SGLT2 inhibitors. No cardiovascular outcomes trial is published, nor ongoing at this time. Adverse effects are similar to other SGLT2 inhibitors (genital mycotic and urinary tract infections, increased urination) including a warning for lower extremity amputation similar to canagliflozin.

RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE IN COMPARISON TO EXISTING DRUGS

Although no cost-effectiveness data are available, statements from the manufacturer suggest a competitive price point. Given limited trial data, lower cost, if chosen, may create a temporary niche for bexagliflozin pending generic availability of other SGLT2 inhibitors. However, given lack of cardiovascular and renal outcome data, empagliflozin, dapagliflozin, or canagliflozin may be preferred.

CONCLUSION

Bexagliflozin appears safe and effective as monotherapy and add-on pharmacological therapy for the treatment of T2D.

Discontinuing semaglutide after weight loss: strategy for weight maintenance and a possible new side effect

Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) facilitate weight loss. Weight regain off therapy is concerning. We reported the case of a 35-year-old male prescribed oral semaglutide with 22.7 kg weight loss over 120 days. Herein, we describe the clinical course when discontinuing GLP-1 RA therapy, one approach to maintaining weight loss after discontinuation, and a possible new side effect. At day 120, we continued oral semaglutide 7 mg daily, down from 14 mg, for weight maintenance with subsequent weight regain. We re-increased semaglutide to 14 mg/day with weight re-loss within 1 month and weight maintance for a year. We then discontinued semaglutide; weight loss was maintained for 6 months. The patient reported lactose intolerance ∼13 months before starting semaglutide. During semaglutide therapy, the patient reported worsened lactose intolerance and new gluten intolerance. Food allergy/celiac testing were negative. Intolerances did not improve with semaglutide discontinuation. Six months after semaglutide discontinuation, the patient was diagnosed with small intestinal bacterial overgrowth, possibly worsened by semaglutide. Factors potentially supporting weight maintenance were early drug treatment for new-onset obesity, non-geriatric age, strength training, and diet modification. The case highlights tailoring approaches to maintain weight loss without GLP-1 RAs. Trials are needed to optimize weight maintenance strategies.

Association of Common Foods with Inflammation and Mortality: Analysis from a Large Prospective Cohort Study

Some dietary patterns are associated with inflammation, while others lower inflammation and improve health. However, many people cannot follow a complete, healthy diet. Therefore, this study's aim was to identify specific foods associated chronic inflammation and mortality. The study used Multi-Ethnic Study of Atherosclerosis (MESA) research materials from the NHLBI Biologic Specimen and Data Repository Information Coordinating Center. Three plant-based and three animal-based MESA food categories were chosen based on perceived availability in the western diet. The assessed food categories were avocado, ham, sausage, eggs, greens, and broccoli. Inflammatory markers assessed were interleukin-6 (IL-6), fibrinogen antigen, C-reactive protein, D-Dimer, interleukin-2, matrix metalloproteinase 3, necrosis factor-a soluble receptors, oxidized LDL (oxLDL), and total homocysteine. The primary outcome was the multivariable association of foods and inflammatory markers with all-cause mortality. All inflammatory makers, except oxLDL, were associated with mortality in univariate analysis. The effect was largest with IL-6 and D-dimer. The category of broccoli had the most consistent association in univariate analyses with lower inflammation and lower mortality odds. Low and high broccoli consumption versus no consumption were associated with lower mortality odds in the multivariable models with IL-6 and D-dimer. Consumption of the MESA-defined food category "broccoli" (i.e., broccoli, cabbage, cauliflower, brussels sprouts, sauerkraut, and kimchee) was associated with lower inflammation and lower mortality odds. These findings should be validated in randomized controlled trials testing a "food is medicine" approach to identify which, if any, of these foods may have potential as an herbal therapeutic for chronic inflammation.

Inclisiran for the Treatment of Hyperlipidemia and for Atherosclerotic Cardiovascular Disease Risk Reduction: A Narrative Review

PURPOSE

Inclisiran is a novel nonstatin therapy providing significant reduction in low-density lipoprotein cholesterol (LDL-C) as well as improvements in other lipid biomarkers. This review summarizes data from postapproval publications regarding the impact of inclisiran on lipids and cardiovascular risk reduction, as well as its tolerability and cost-effectiveness.

METHODS

A search of PubMed for inclisiran was used to identify articles published since its approval by the US Food and Drug Administration (FDA). Clinical research studies reporting meta-analysis; pooled patient-level trial analyses; cost-effectiveness analyses; new human data; prespecified, post-hoc, or subgroup trial analyses; and clinical trial extensions were included.

FINDINGS

The search identified 153 citations; 16 studies were included. FDA-approval trials, subsequent pooled patient-level trial analyses, and extension studies found that inclisiran, administered with and without maximally tolerated statin therapy, reduced LDL-C by ≈50%, with the reduction sustained for 4 years. Inclisiran appeared to be well tolerated, even long-term, with injection-site reactions being the most common adverse effect. A patient-level pooled analysis of data from Phase III trials suggested that cardiovascular events were reduced with inclisiran versus placebo (7.1% vs 9.4%; odds ratio = 0.74 [95% CI, 0.58-0.94]). Inclisiran is suggested to be cost-effective based the presumed cardiovascular benefit commensurate with LDL-C reduction.

IMPLICATIONS

The cardiovascular benefit and cost-effectiveness of inclisiran are promising, though not definitive. The results of a large-scale study of the effects of inclisiran on cardiovascular outcomes are expected in 2026; until then, the nonstatin therapies primarily prescribed for LDL-C reduction remain proprotein convertase subtilisin/kexin (PCSK)-9 inhibitors and ezetimibe. However, inclisiran is a reasonable alternative to, PCSK-9 inhibitors, in patients who struggle with the self-injection of or adherence to PCSK-9 inhibitors as inclisiran maintenance therapy is administered twice yearly by a health care professional.

Pharmacist-driven continuous glucose monitoring in community and ambulatory care pharmacy practice: A scoping review

BACKGROUND

Continuous glucose monitoring (CGM) devices improve clinical outcomes and facilitate achieving patient-specific goals. However, opportunities and barriers to implementation of pharmacist-driven CGM services are not well-described.

OBJECTIVES

This scoping review was conducted to identify opportunities and barriers to implementing pharmacist-driven CGM services in the community and ambulatory care setting. Clinical outcomes resulting from pharmacist-driven CGM were also explored.

METHODS

A health librarian searched Ovid MEDLINE, Cochrane CENTRAL, Embase, Web of Science, Scopus, International Pharmaceutical Abstracts using keywords and subject headings from inception through December 2, 2022 to identify studies describing pharmacist or pharmacy-based CGM programs. No publication type, date limits, language restrictions, or other filters were applied. The database search was supplemented by a search of Google Scholar and a citation search of preselected gold standard articles.

RESULTS

The scoping review initially identified 942 citations of which 249 passed abstract screening and 11 were included in the review. Among studies, the most common design was retrospective, populations varied, control groups were not consistently used, follow-up was primarily short, and sample sizes were small. One study evaluated pharmacist-driven CGM in a community pharmacy setting. Ten studies took place in the ambulatory care setting. Barriers to initiating pharmacist-driven CGM as a clinical service include educational, logistical, workflow, and financial incentive. Beneficial outcomes from pharmacist-driven CGM include improved quality of life, increased empowerment, and improved glycemic control.

CONCLUSION

There is lack of strong evidence to support pharmacist-driven CGM in the community pharmacy setting. However, small studies suggest pharmacist-driven CGM is feasible and beneficial in the ambulatory care setting. Further exploration of how educational, logistical, workflow, and financial barriers can be overcome is warranted, given potential for improved clinical outcomes.

A Systematic Approach to Treating Early Metabolic Disease and Prediabetes

At least 70% of US adults have metabolic disease. However, less is done to address early disease (e.g., overweight, obesity, prediabetes) versus advanced disease (e.g., type 2 diabetes mellitus, coronary artery disease). Given the burden of advanced metabolic disease and the burgeoning pandemics of obesity and prediabetes a systematic response is required. To accomplish this, we offer several recommendations: (A) Patients with overweight, obesity, and/or prediabetes must be consistently diagnosed with these conditions in medical records to enable population health initiatives. (B) Patients with early metabolic disease should be offered in-person or virtual lifestyle interventions commensurate with the findings of the Diabetes Prevention Program. (C) Patients unable to participate in or otherwise failing lifestyle intervention must be screened to assess if they require pharmacotherapy. (D) Patients not indicated for, refusing, or failing pharmacotherapy must be screened to assess if they need bariatric surgery. (E) Regardless of treatment approach or lack of treatment, patients must be consistently screened for the progression of early metabolic disease to advanced disease to enable early control. Progression of metabolic disease from an overweight yet otherwise healthy person includes the development of prediabetes, obesity ± prediabetes, dyslipidemia, hypertension, type 2 diabetes, chronic kidney disease, coronary artery disease, and heart failure. Systematic approaches in health systems must be deployed with clear protocols and supported by streamlined technologies to manage their population's metabolic health from early through advanced metabolic disease. Additional research is needed to identify and validate optimal system-level interventions. Future research needs to identify strategies to roll out systematic interventions for the treatment of early metabolic disease and to improve the metabolic health among the progressively younger patients being impacted by obesity and diabetes.

Impact of Overbasalization on Clinical Outcomes in Patients With Type 2 Diabetes: A Post Hoc Analysis of a Large Randomized Controlled Trial

The American Diabetes Association's Standards of Medical Care in Diabetes emphasize the need for awareness regarding overbasalization (basal insulin doses >0.5 units/kg/day without bolus insulin) in the treatment of type 2 diabetes. However, outcomes data on the impact of overbasalization are limited. This post hoc analysis of a large randomized controlled trial suggests that an insulin therapy regimen involving overbasalization compared with a basal-bolus insulin regimen that avoids overbasalization is less effective at lowering A1C and may be associated with increased cardiovascular risk. Clinicians should consider alternative approaches to glycemic control before increasing basal insulin doses to >0.5 units/kg/day.

Use and Interchange of Incretin Mimetics in the Treatment of Metabolic Diseases: A Narrative Review

PURPOSE

Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) and now tirzepatide, a dual GLP-1 RA/glucose-dependent insulinotropic polypeptide agonist, have numerous advantages in the treatment of type 2 diabetes and obesity, yet only 11% of patients with type 2 diabetes are prescribed a GLP-1 RA. This narrative review addresses the complexity and cost issues surrounding incretin mimetics to support clinicians.

METHODS

This narrative review summarizes key trials on the differing effects of incretin mimetics on glycosylated hemoglobin and weight, provides a table with rationale for how to interchange among agents, and summarizes the key factors that guide drug selection beyond guidance from the American Diabetes Association. To support proposed dose interchanges, we preferentially selected high-quality, prospective randomized controlled trials with direct comparisons of agents and doses when available.

FINDINGS

Tirzepatide produces the greatest reductions in glycosylated hemoglobin and weight, but its impact on cardiovascular events is still under investigation. Subcutaneous semaglutide and liraglutide are approved for weight loss specifically and are effective in the secondary prevention of cardiovascular disease. Although producing less weight loss, only dulaglutide has effectiveness in the primary and secondary prevention of cardiovascular disease. Semaglutide is the only orally available incretin mimetic; however, the oral formulation produces less weight loss versus its subcutaneous alternative and did not have cardioprotection in its outcomes trial. Although effective in controlling type 2 diabetes, exenatide extended release has the least impact on glycosylated hemoglobin and weight among commonly used agents, while not having cardioprotection. However, exenatide extended release may be preferred on some restrictive insurance formularies.

IMPLICATIONS

Although trials have not explicitly studied how to interchange among agents, interchanges can be guided by comparisons between agents' impact on glycosylated hemoglobin and weight. Efficient changes among agents can help clinicians optimize patient-centered care, particularly in the face of changing patient needs and preferences, insurance formularies, and drug shortages. (Clin Ther. 2023;XX:XXX-XXX) © 2023 Elsevier HS Journals, Inc.

Vancomycin Flight Simulator: A Team-Based Learning Exercise

BACKGROUND

Team-based learning (TBL) encourages learners to think critically to solve problems they will face in practice. Pharmacokinetic dosing and monitoring are complex skills requiring the application of learned knowledge. The study sought to assess the impact of a TBL, vancomycin dosing activity in a Pharmaceutical Skills IV course measured with exam question performance during the second professional year.

METHODS

This retrospective, descriptive study relates a TBL activity, assigned to 85 students, which included an individual student pre-preparation quiz, assigned readings, in-class individual and team-based readiness assessments, small group application of a vancomycin patient case, and group discussion/feedback on clinical decisions with supportive reasoning. The class year before and class year of the TBL implementation were compared using the total percentage of points possible earned by the class years, by topic. To minimize potential confounding, the primary outcome was the change in topic performance by the rank difficulty (e.g., the largest possible benefit being the hardest topic becoming the easiest with no other variation in topic rank difficulty).

RESULTS

In the year of implementation, the mean individual readiness assurance test (IRAT) performance was 5.5 ± 1.88 (10 points possible, 55%). The mean team readiness assurance test (TRAT) performance was 10 of 10 points possible (100%). The class exam item performance in the year before (n = 101) and year of (n = 84) TBL implementation showed a general decline in exam scores. However, the vancomycin topic difficultly went from fifth easiest, to second easiest, with less than 1% change in raw score.

CONCLUSIONS

Implementation of a pharmacokinetic TBL activity appeared to moderately support the students' vancomycin learning. Additional studies are warranted on APPE readiness and performance.

Effect of Antidepressants on Glucagon-Like Peptide-1 Receptor Agonist-Related Weight Loss

Background

Depression and obesity have a bidirectional relationship making the management of one, without the other, problematic. Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are a preferred medication class for diabetes and obesity treatment given their weight loss effect; however, it is not known how antidepressants impact this effect.

Objective

To assess the impact of antidepressant use on GLP-1 RA-associated weight loss in patients with or without type 2 diabetes mellitus.

Methods

This was a retrospective, propensity matched, cohort study conducted using TriNetX. The study identified patients initiating a GLP-1 RA being treated with citalopram/escitalopram, bupropion, or no antidepressant. Cohorts were propensity score matched to analyze the primary outcome of mean end-of-study (77-371 days) body weight.

Results

An initial query identified 31 273 patients eligible for analysis (30 160 receiving no antidepressant, 311 receiving bupropion, and 802 receiving citalopram/escitalopram). After propensity score matching, the study found patients receiving citalopram/escitalopram were taking more antidiabetic therapies at baseline compared with patients not treated with an antidepressant. Patients in the antidepressant cohorts experienced less weight loss compared with their respective matched cohorts not receiving antidepressants (citalopram/escitalopram -0.73 kg versus -1.74 kg; bupropion -0.84 kg versus -3.46 kg). Only the bupropion cohort was significantly heavier at end-of-study versus the non-antidepressant cohort (108 kg versus 103 kg, P = 0.018).

Conclusion and Relevance

Antidepressants may diminish the weight loss effect of GLP-1 RAs. Additional research is needed to assess whether all GLP-1 RAs are affected similarly and the optimal weight loss strategies in patients receiving antidiabetic therapy with comorbid depression.

Novel biomarkers of inflammation in heart failure with preserved ejection fraction: analysis from a large prospective cohort study

Background

Heart failure with preserved ejection fraction (HFpEF) is a syndrome with a heterogeneous cluster of causes, including non-resolving inflammation, endothelial dysfunction, and multi-organ defects. The present study’s objective was to identify novel predictors of HFpEF.

Methods

The study analyzed the Multi-Ethnic Study of Atherosclerosis (MESA) to assess the association of specific markers of inflammation with new onset of HFpEF (interleukin-2 [IL-2], matrix metalloproteinase 3 [MMP3], large low-density lipoprotein cholesterol [LDL-C], and medium high-density lipoprotein cholesterol [HDL-C]). The study included men and women 45 to 84 years of age without cardiovascular disease at baseline. The primary outcome was the multivariate association of the hypothesized markers of inflammation with new-onset of HFpEF versus participants without new-onset heart failure. Participants with missing data were excluded.

Results

The present analysis included 6814 participants, 53% female, with a mean age of 62 years. Among the entire cohort, HFpEF was diagnosed in 151 (2.2%) participants and heart failure with reduced ejection fraction (HFrEF) was diagnosed in 146 (2.1%) participants. Participants were followed for the outcome of heart failure for a median 13.9 years. Baseline IL-2 was available for 2861 participants. The multivariate analysis included 2792 participants. Of these, 2668 did not develop heart failure, 62 developed HFpEF, 47 developed HFrEF, and 15 developed unclassified heart failure. In the multivariate regression model, IL-2 was associated with new-onset HFpEF (OR, 1.00058; 95% confidence interval, 1.00014 to 1.00102, p = 0.009) but not new-onset HFrEF. In multivariate analysis, MMP3, large LDL-C, and medium HDL-C were not associated with HFpEF or HFrEF.

Conclusion

These findings portend IL-2 as an important component of suboptimal inflammation in the pathogenesis of HFpEF.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12872-022-02656-z.

Is it Time to Expand Glucagon-like Peptide-1 Receptor Agonist Use for Weight Loss in Patients Without Diabetes?

The obesity and type 2 diabetes mellitus epidemics demonstrate that simply emphasizing a healthy lifestyle is insufficient. While weight loss medications have historically been considered "cosmetic", glucagon-like peptide-1 receptor agonists (GLP1-RAs) also reduce cardiovascular risk in patients with type 2 diabetes. Therefore, we assessed whether GLP1-RAs warrant use in patients who are overweight (body mass index 27.0-29.9 kg/m²) without weight-related comorbidity. We reviewed trials of available GLP1-RAs with a natural GLP1 backbone given their trend toward cardiovascular benefit and excluded trials requiring concurrent antidiabetic agents associated with weight gain. We assessed 20 phase III trials of GLP1-RAs studied in cardiovascular outcome trials. The GLP1-RAs consistently produced weight loss. Hypoglycemia risk with GLP1-RAs was generally low without other precipitating factors, whereas gastrointestinal adverse effects were common. Dulaglutide 1.5 mg weekly did not produce sufficient weight loss to support its use specifically for weight loss, while data supporting dulaglutide 3.0 or 4.5 mg weekly were limited to a single trial. Weight loss was sufficient with liraglutide 1.8 mg daily in one trial and was consistently sufficient with liraglutide 3.0 mg daily. Oral and injectable semaglutide at both doses consistently produced weight loss, though demonstrated a potential increased risk for retinopathy. Overall, we suggest five GLP1-RAs can be used in the treatment of overweight (body mass index 27.0-29.9 kg/m² without weight-related comorbidity) with shared decision making to address each medications' key limitation: liraglutide 1.8 mg daily (less demonstrated weight loss), liraglutide 3.0 mg daily (no cardiovascular outcome trial at this dose), and oral and injectable semaglutide at both doses (uncertain retinopathy risk and pending cardiovascular outcome trial of high-dose semaglutide). Use should be limited to patients who fail, refuse, or cannot access lifestyle interventions for weight loss, and should be accompanied by standard restrictions on and monitoring of weight loss medications. We expect additional and earlier use of weight loss therapies to help clinicians curb the obesity and type 2 diabetes epidemics.

Review of Prediabetes and Hypertensive Disorders of Pregnancy

Obesity and diabetes increase hypertensive disorders of pregnancy (HDP) risk, thus preventive interventions are heavily studied. How pregestational prediabetes and related interventions impact HDP risk is less characterized. Therefore, we searched and reviewed the literature to assess the impact on HDP risk of prediabetes and varied interventions. We identified 297 citations related to pregnancy, prediabetes, and early pregnancy interventions. We also reviewed the references and citations of included articles. We included five studies assessing HDP outcomes in women with first trimester hemoglobin A1c in the prediabetes range (5.7-6.4%). One prospective observational study demonstrated first trimester hemoglobin A1c (5.9-6.4%) is associated with increased HDP risk, while another prospective observational study and one retrospective observational study had similar trends without statistical significance. A small and underpowered randomized controlled trial demonstrated initiating gestational diabetes mellitus treatment (i.e., diet, monitoring, ± insulin) in response to first trimester hemoglobin A1c (5.7-6.4%) did not statistically reduce HDP compared with standard care. One retrospective observational study suggested metformin, when started early, may reduce HDP risk in patients with prediabetes. Pregestational prediabetes appears to increase HDP risk. Interventions (i.e., metformin, diet/glucose monitoring, and/or exercise) to reduce HDP risk require additional study with long-term follow-up.

Evaluation of cardiovascular and renal outcomes with ertugliflozin: what is the VERdict from the VERTIS-CV trial?

INTRODUCTION

A growing number of antidiabetic agents have demonstrated cardiovascular and renal benefits in cardiovascular outcome trials (CVOTs), despite such trials being principally required to rule out excess cardiovascular risk.

AREAS COVERED

This article addresses the Evaluation of Ertugliflozin Efficacy and Safety Cardiovascular Outcomes (VERTIS-CV) trial, its background, design, results, and implications. In patients at least 40 years of age with atherosclerotic cardiovascular disease (ASCVD), the VERTIS-CV trial demonstrated ertugliflozin was non-inferior to placebo for major adverse cardiovascular events, though not superior. Ertugliflozin significantly reduced hospitalization for heart failure compared to placebo. The composite renal outcome was not significantly different between groups. Ertugliflozin was generally well tolerated with a safety profile commensurate with other sodium-glucose co-transporter-2 inhibitors (SGLT-2) inhibitors.

EXPERT OPINION

In patients with type 2 diabetes and ASCVD, ertugliflozin appears safe with a noted non-significant trend toward improved renal outcomes. Approximately 23.7% of patients in the VERTIS-CV trial had heart failure, the highest among SGLT-2 inhibitor CVOTs. The VERTIS-CV trial reaffirms the reduction in heart failure hospitalizations as a likely class effect of SGLT-2 inhibitors. While the trial supports the use of ertugliflozin beyond glycemic control, agents with confirmed superiority for improved cardiovascular outcomes and mortality may be preferred.

Open data, trials and new ethics of using others' work

Data and ideas are the capital of research productivity. Is it ethical to preempt the publication of another researcher's unpublished data or preliminary analysis, perhaps without citation? The long-established answer is 'certainly not'-but recent 'open data' use suggests otherwise. A research competition was held using data from The Systolic Blood Pressure Intervention Trial (SPRINT). This SPRINT Data Analysis Challenge created a novel environment for using open data as data became open early. This allowed third-party researchers the opportunity to assess some of the trial's outcomes before trialists. Could this infringe on trialists' right to analyse their data? Simultaneously, trialists had access to analyses from submissions to the competition that were not formally 'published' with a typical author credit or citation. Therefore, trialists had the opportunity to view the competition submissions and published on those ideas first without a typical way to cite the source of that idea. Could this infringe on researchers' right to be credited for their ideas? This is not intended as a criticism of open data, the SPRINT Data Analysis Challenge, or similar systems/ventures, but is an effort to objectively note what may be remediable flaws in the worthwhile, growing and dynamic uses of open data. We offer preliminary analytics to shed more light and provide fodder for additional discussion.

Ambulatory Care Pharmacists' Perception of Prediabetes

INTRODUCTION

Eighty-four million patients in the United States have prediabetes yet evidence-based interventions to prevent diabetes are infrequently used. The concept of prediabetes is contentious, although preventive interventions are guideline supported. Team-based care models incorporating pharmacists for prediabetes have been proposed; however, pharmacist perception regarding prediabetes has not been assessed. This study's objective was to assess ambulatory care pharmacists' perception of recommendations for prediabetes.

METHODS

An anonymous survey was electronically distributed through the American College of Clinical Pharmacy Ambulatory Care Practice and Research Network. The primary outcome was the proportion of respondents who reported supporting 3 main recommendations related to prediabetes (ie, screening, evidence-based lifestyle-intervention, metformin). The study was approved by the University of South Florida Institutional Review Board. Data collection and analysis occurred in 2017.

RESULTS

The survey was distributed to approximately 2209 potential participants. One hundred thirty-three surveys were completed. The American Diabetes Association guideline was the most common primarily supported guideline related to prediabetes (89%). Of the respondents, 87% supported all 3 main recommendations regarding prediabetes. Qualitative feedback demonstrated the full range of opinions; programs for prediabetes, limited intervention for prediabetes, and against prediabetes as a concept.

CONCLUSIONS

The majority of ambulatory care pharmacists responding supported all main recommendations related to prediabetes and therefore may be practicable for disseminating diabetes prevention interventions. However, barriers to implementation should be expected.

Prevention of Diabetes Mellitus in Patients With Prediabetes

Cardiovascular disease is a leading cause of death in patients with diabetes. Consequently, as antidiabetic medications have demonstrated cardiovascular benefit, cardiologists have been asked to weigh in regarding antidiabetic therapy. The cardiologist's role will continue to grow as antidiabetic agents with cardiovascular benefit are being studied in prediabetes as part of an evolving clinical environment. Still, current guidelines primarily recommend high-intensity lifestyle intervention or metformin for diabetes prevention. Considering that many patients cared for by a cardiologist will have prediabetes, we propose herein that cardiologists can also facilitate diabetes prevention through direct intervention, referring patients to community-based high-intensity lifestyle interventions, and through advocacy, policy, and additional guideline development. The most important messaging for a patient is that avoiding new-onset diabetes can reduce microvascular disease, reduce healthcare cost, and improve health-related quality of life. Moreover, as the mortality risk of patients with a history of myocardial infarction and diabetes is almost double that of patients with a history of myocardial infarction who are free of diabetes, there is even more potential benefit in delaying and/or avoiding diabetes in patients with cardiovascular disease. Despite these important health advantages, the implementation of diabetes prevention strategies is lagging. The under implementation may be exaggerated by published opinions conflicting major guidelines in addition to conflicting guideline recommendations. In conclusion, we propose cardiologists can play a key role in preventing diabetes and aligning practice patterns with guideline recommendations among endocrinology, cardiology, and primary care stake holders.

Metformin's impact on statin-associated muscle symptoms: An analysis of ACCORD study data and research materials from the NHLBI Biologic Specimen and Data Repository Information Coordinating Center

Statins are widely prescribed, yet statin muscle pain limits their use, leading to increased cardiovascular risk. No validated therapy for statin muscle pain exists. The goal of the study was to assess whether metformin was associated with reduced muscle pain. A secondary analysis of data from the ACCORD trial was performed. An ACCORD sub-study assessed patients for muscle cramps and leg/calve pain while walking, typical non-severe statin muscle pain symptoms. We compared muscle pain between patients using a statin (n = 445) or both a statin and metformin (n = 869) at baseline. Overall patient characteristics were balanced between groups. Unadjusted analysis showed fewer reports of muscle cramps (35%) and leg/calve pain while walking (40%) with statins and metformin compared to statin only (muscle cramps, 42%; leg/calve pain while walking, 47%). Multivariable regression demonstrated a 22% odds reduction for muscle cramps (P = 0.049) and a 29% odds reduction for leg/calve pain while walking (P = 0.01). Metformin appears to reduce the risk of non-severe statin muscle pain and additional research is needed to confirm the findings and assess metformin's impact on statin adherence and related cardiovascular outcomes.

Evaluation of SAMe-TT2R2 Score on Predicting Success With Extended-Interval Warfarin Monitoring

BACKGROUND

In patients with stable international normalized ratios, 12-week extended-interval warfarin monitoring can be considered; however, predictors of success with this strategy are unknown. The previously validated SAMe-TT₂R₂ score (considering sex, age, medical history, treatment, tobacco, and race) predicts anticoagulation control during standard follow-up (every 4 weeks), with lower scores associated with greater time in therapeutic range.

OBJECTIVE

To evaluate the ability of the SAMe-TT₂R₂ score in predicting success with extended-interval warfarin follow-up in patients with previously stable warfarin doses.

METHODS

In this post hoc analysis of a single-arm feasibility study, baseline SAMe-TT₂R₂ scores were calculated for patients with ≥1 extended-interval follow-up visit. The primary analysis assessed achieved weeks of extended-interval follow-up according to baseline SAMe-TT₂R₂ scores.

RESULTS

A total of 47 patients receiving chronic anticoagulation completed a median of 36 weeks of extended-interval follow-up. The median baseline SAMe-TT₂R₂ score was 1 (range 0-5). Lower SAMe-TT₂R₂ scores appeared to be associated with greater duration of extended-interval follow-up achieved, though the differences between scores were not statistically significant. No individual variable of the SAMe-TT₂R₂ score was associated with achieved weeks of extended-interval follow-up. Analysis of additional patient factors found that longer duration (≥24 weeks) of prior stable treatment was significantly associated with greater weeks of extended-interval follow-up completed ( P = 0.04). Conclusion and Relevance: This pilot study provides limited evidence that the SAMe-TT₂R₂ score predicts success with extended-interval warfarin follow-up but requires confirmation in a larger study. Further research is also necessary to establish additional predictors of successful extended-interval warfarin follow-up.

Pleiotropic effects of metformin to rescue statin-induced muscle injury and insulin resistance: A proposed mechanism and potential clinical implications

The 2013 American Heart Association Blood Cholesterol Guidelines increased the number of patients recommended for statin therapy in the United States to 56million. Two common statin side effects are muscle pain, referred to as "statin-associated muscle symptoms", and increased risk for new onset type-2-diabetes mellitus. Up to 25% of statin users report muscle symptoms resulting in many patients being switched to lower dose or lower potency statins, or refusing statins altogether. The most likely signaling mechanisms for statin-associated muscle symptoms overlaps with the proposed mechanism of statin-induced insulin resistance. Metformin has outstanding utility in reducing insulin resistance and preventing type-2-diabetes mellitus, but has not been studied for statin-associated muscle symptom rescue or prevention. The overlapping mechanisms of statin-associated muscle symptoms, statin-induced insulin resistance, and metformin intervention offers the potential to address two common and detrimental side effects of statins. As statins are the single best medication class for preventing cardiovascular events the potential for clinical benefit is large given metabolic syndrome's growing prevalence in the United States. Herein we hypothesize that metformin will rescue and prevent patients from statin-associated muscle symptoms. This hypothesis can benefit two patient groups: 1) patients at risk for diabetes who are taking a statin and experiencing muscle symptoms; and 2) patients with diabetes taking metformin who are to be started on a statin. Method to test Group 1) Symptom Rescue: randomized control trial of metformin versus placebo in patients with prediabetes who are already taking a statin, and are experiencing mild-to-moderate muscle symptoms. Method to test Group 2) Symptom Prevention: meta-analysis, of statin randomized control trials, with patient level data, comparing patients taking metformin at baseline to patients not taking metformin when a statin is started. An efficient method to simulate both symptom rescue and symptom prevention is a skeletal muscle cell culture model of statin-associated muscle symptom markers. These experiments would identify if metformin reverses (rescues) or prevents markers of statin-associated muscle symptoms. As metformin is recommended by the American Diabetes Association for type-2-diabetes mellitus prevention, yet not frequently used, validating this hypothesis will lead towards research and practice change including: a) decreases in the frequency of statin-associated muscle symptoms; leading to subsequent increases in statin therapy compliance; b) increases in metformin use in prediabetes with subsequent decrease in the incidence of type-2-diabetes mellitus; and c) decreases in complications of both cardiovascular disease and diabetes due to improved statin compliance and type-2-diabetes mellitus prevention.

EPA-Registered Repellents for Mosquitoes Transmitting Emerging Viral Disease

In many parts of the United States, mosquitoes were previously nuisance pests. However, they now represent a potential threat in the spread of viral diseases. The Aedes aegypti, Aedes albopictus, and Culex species mosquitoes are endemic to the United States and together may transmit a variety of viral diseases of growing concern, including West Nile virus, chikungunya, dengue fever, and Zika virus. The Centers for Disease Control and Prevention and the Environmental Protection Agency (EPA) recommend N,N-diethyl-meta-toluamide (DEET) as a first-line mosquito repellent, but for patients refusing to use DEET or other conventional repellents, guidance is limited to any EPA-registered product. Therefore, we conducted a systematic review of the literature to identify which EPA-registered personal mosquito repellent provides the best protection from A. aegypti, A. albopictus, and Culex spp. mosquitoes. We abstracted data from 62 published reports of EPA-registered mosquito repellents. The conventional repellent picaridin has the strongest data to support its use as a second-line agent, while IR3535 and oil of lemon eucalyptus are reasonably effective natural products. Citronella, catnip, and 2-undecanone offer limited protection or have limited data. These results can be used by pharmacists and other health care professionals to advise patients on the selection of an EPA-registered mosquito repellent. Regardless of the repellent chosen, it is vital for patients to follow all instructions/precautions in the product labeling to ensure safe and effective use.

Feasibility of Extended-interval Follow-up for Patients Receiving Warfarin

AIMS

The 2012 American College of Chest Physician Evidence-Based Management of Anticoagulant Therapy guidelines suggest an international normalized ratio (INR) testing interval of up to 12 weeks, rather than every 4 weeks, for patients with consistently stable INRs while taking vitamin K antagonists. We aimed to examine the feasibility of extended-interval follow-up in a real-world setting.

METHODS

Patients receiving stable warfarin therapy for ≥ 12 weeks at baseline began extended-interval follow-up with visits occurring at 6 weeks, 14 weeks, and every 12 weeks thereafter to a maximum of 68 weeks or until they were no longer suitable for extended-interval follow-up. A single INR excursion >0.3 from goal was permitted if a reversible precipitating factor was identified and the INR was expected to return to goal without dose adjustment. The primary outcome was the proportion of patients completing all study follow-up visits.

RESULTS

Of 48 patients enrolled, 47 had evaluable data. The most common indication for anticoagulation was atrial fibrillation/flutter (53.2%). At baseline, mean prior warfarin treatment duration was 6.7 ± 6 years and median number of weeks on a stable regimen was 24 weeks (IQR, 19-37.5). Eleven patients (23%) completed all study follow-up visits, whereas 17 (36%) did not maintain a stable INR past the 14-week follow-up.

CONCLUSION

A large proportion of patients with previously stable (≥ 3 months) INRs were not able to maintain stable INRs during extended-interval follow-up. More research is needed to identify patient characteristics predictive of success with extended-interval follow-up prior to broad implementation.

Physician-pharmacist collaboration versus usual care for treatment-resistant hypertension

Team-based care has been recommended for patients with treatment-resistant hypertension (TRH), but its efficacy in this setting is unknown. We compared a physician-pharmacist collaborative model (PPCM) to usual care in patients with TRH participating in the Collaboration Among Pharmacists and Physicians To Improve Outcomes Now study. At baseline, 169 patients (27% of Collaboration Among Pharmacists and Physicians To Improve Outcomes Now patients) had TRH: 111 received the PPCM intervention and 58 received usual care. Baseline characteristics were similar between treatment arms. After 9 months, adjusted mean systolic blood pressure was reduced by 7 mm Hg more with PPCM intervention than usual care (P = .036). Blood pressure control was 34.2% with PPCM versus 25.9% with usual care (adjusted odds ratio, 1.92; 95% confidence interval, 0.33-11.2). These findings suggest that team-based care in the primary care setting may be effective for TRH. Additional research is needed regarding the long-term impact of these models and to identify patients most likely to benefit from team-based interventions.

Quality of Life in Treatment-Resistant Hypertension

Treatment-resistant hypertension (TRH) is an increasingly common and clinically challenging hypertension phenotype associated with adverse impact on cardiovascular events and death. Recent evidence, although limited, suggests that TRH may also adversely affect health-related quality of life (HrQoL) and other patient-reported outcomes. However, the precise mechanisms for this link remain unknown. A number of recent studies focusing on both the general hypertensive population and those with TRH suggest that patient awareness of difficult-to-control blood pressure, chronically elevated blood pressure levels, and the use of aggressive medication regimens with attendant cumulative adverse effects may play significant roles. This review summarizes the existing literature on HrQoL in persons with TRH, highlights literature from the general hypertensive population with relevance to TRH, and discusses important remaining questions regarding HrQoL in persons with TRH.

First Pharmacological Therapy for Hypoactive Sexual Desire Disorder in Premenopausal Women

Objective: To review data regarding flibanserin, a recently approved therapy for hypoactive sexual desire disorder (HSDD). Data Sources: Literature search of MEDLINE (September 1995 to November 2015) was performed using the search term flibanserin. Reference lists from included articles were reviewed for pertinent citations. Study Selection and Data Extraction: We included phase-3 trials of flibanserin as a treatment for HSDD. Four reports of phase-3 trials were included. One extension study of four phase-3 trials and one phase-2 pharmacokinetic trial were also included. Data Synthesis: Though a strong placebo response was demonstrated, flibanserin consistently, yet marginally, showed improvement (compared with placebo) in the number of satisfying sexual events per month. The most common adverse events were dizziness (11.4%), somnolence (11.2%), nausea (10.4%), fatigue (9.2%), insomnia (4.9%), and dry mouth (2.4%). Conclusions: Flibanserin is effective in the treatment of HSDD. Flibanserin should be administered at bedtime to limit the risk for hypotension/syncope, accidental injury, and central nervous system (CNS) depression. Concomitant alcohol use contributes to significant CNS depression and hypotension/syncope with flibanserin and should be avoided according to the boxed warning. Careful patient assessment prior to the diagnosis of HSDD and the use of flibanserin is needed for safe use. Prescribing guidelines recommend discontinuing flibanserin at 8 weeks in the absence of benefit. Sexual dysfunction should be addressed in a patient-specific manner. Providers should exercise shared decision making in prescribing flibanserin for HSDD and discuss flibanserin’s benefits and alternative options.

Minocycline as A Substitute for Doxycycline in Targeted Scenarios: A Systematic Review

Doxycycline remains on intermittent shortage. Evidence supports the substitution of minocycline in skin and soft-tissue infections and carefully selected cases of pneumonia. Minocycline may be carefully considered in Lyme disease prophylaxis and Rickettsial disease in the complete absence of doxycycline.

Doxycycline, a commonly prescribed tetracycline, remains on intermittent shortage. We systematically reviewed the literature to assess minocycline as an alternative to doxycycline in select conditions, given doxycycline's continued shortage. We identified 19 studies, 10 of which were published before 2000. Thirteen of the studies were prospective, but only 1 of these studies was randomized. Based on the available data, we found minocycline to be a reasonable substitute for doxycycline in the following scenarios: skin and soft-tissue infections and outpatient treatment of community-acquired pneumonia in young, otherwise healthy patients or in patients with macrolide-resistant Mycoplasma pneumoniae, as well as Lyme disease prophylaxis and select rickettsial disease should doxycycline be unavailable.

Combining a GLP-1 receptor agonist and basal insulin: study evidence and practical considerations

Most patients with diabetes mellitus require multiple medications to achieve glycemic goals. Considering this and the increasing incidence of type 2 diabetes worldwide, the need for effective combination therapy is pressing. Basal insulin and glucagon-like peptide 1 (GLP-1) receptor agonists are frequently used to treat type 2 diabetes. Though both classes of medication are exclusively injectable, which may cause initial hesitation from providers, evidence for their combined use is substantial. This review summarizes the theoretical benefit, supporting evidence, and implementation of a combined basal insulin-GLP-1 receptor agonist regimen. Basal insulin added to a GLP-1 receptor agonist reduces hemoglobin A1c (HbA1c) without weight gain or significantly increased hypoglycemia. A GLP-1 receptor agonist added to basal insulin reduces HbA1c and body weight. Compared with the addition of meal-time insulin to basal insulin, a GLP-1 receptor agonist produces similar or greater reduction in HbA1c, weight loss instead of weight gain, and less hypoglycemia. Gastrointestinal adverse events are common with GLP-1 receptor agonists, especially during initiation and titration. However, combination with basal insulin is not expected to augment expected adverse events that come with using a GLP-1 receptor agonist. Basal insulin can be added to a GLP-1 receptor agonist with a slow titration to target goal fasting plasma glucose. In patients starting a GLP-1 receptor agonist, the dose of basal insulin should be decreased by 20 % in patients with an HbA1c ≤8 %. The evidence from 15 randomized prospective studies supports the combined use of a GLP-1 receptor agonist with basal insulin in a broad range of patients with uncontrolled type 2 diabetes.

Health-related quality of life in persons with apparent treatment-resistant hypertension on at least four antihypertensives

Little is known about the impact of treatment-resistant hypertension (TRH) on health-related quality of life (HrQoL). We aimed to compare HrQoL measures in adults with apparent TRH (aTRH) and non-resistant hypertension among nationally representative US Medical Expenditure Panel Survey data pooled from 2000 to 2011. Cohorts compared were adults with aTRH (⩾2 unique fills from ⩾4 antihypertensive classes during a year) versus non-resistant hypertension (those with hypertension not meeting the aTRH definition). Key outcomes were cohort differences in SF-12v2 physical component summary (PCS) and mental component summary (MCS) scores and disease-state utility using the SF-6D. Of 57 150 adults with hypertension, 2501 (4.4%) met criteria for aTRH. Persons with aTRH, compared with non-resistant hypertension, were older (mean, 68 vs 61 years), had a higher BMI (30.9 vs 29.7 kg m(-)(2)) and were more likely to be Black (20% vs 14%), but less likely to be female (46% vs 54%). Persons with aTRH, compared with non-resistant hypertension, had lower mean PCS scores (35.8 vs 43.2; P<0.0001), and utility (0.68 vs 0.74; P<0.0001), but similar MCS scores (49.1 vs 50.4). In multivariable-adjusted analyses, aTRH was associated with a 2.37 (95% CI 1.71 to 3.02) lower PCS score and 0.02 (95% CI 0.01 to 0.03) lower utility, compared with non-resistant hypertension. In conclusion, aTRH was associated with substantially lower HrQoL in physical functioning and health utility, but not in mental functioning, compared with non-resistant hypertension. The multivariable-adjusted reduction in physical functioning was similar in magnitude to previous observations comparing hypertension with no hypertension.