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Adamou A, Barkas F, Milionis H, Ntaios G. Glucagon-like peptide-1 receptor agonists and stroke: A systematic review and meta-analysis of cardiovascular outcome trials. Int J Stroke 2024; 19:876-887. [PMID: 38676552 DOI: 10.1177/17474930241253988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
BACKGROUND In patients surviving stroke, approximately 15% and 60% exhibit concurrent diabetes mellitus and overweight/obesity, respectively, necessitating heightened secondary prevention efforts. Despite glucagon-like peptide-1 receptor agonists (GLP-1 RAs) demonstrating improved outcomes for those with diabetes mellitus or obesity, their underutilization persists among eligible individuals. This systematic review and meta-analysis investigated the impact of GLP-1 RAs on stroke risk. The findings aim to optimize the implementation of this therapeutic strategy in patients surviving stroke with diabetes mellitus or obesity. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, we systematically reviewed MEDLINE and Scopus until 15 November 2023. Eligible studies included randomized cardiovascular outcome trials (CVOTs) with individuals, with or without type 2 diabetes, randomized to either GLP-1 RA or placebo. The outcomes were total strokes, non-fatal strokes, and fatal strokes. Analyses were conducted using RevMan 5.4.1. RESULTS Among 1369 screened studies, 11 were eligible, encompassing 82,140 participants (34.6% women) with a cumulative follow-up of 247,596 person-years. In the GLP-1 RAs group, the stroke rate was significantly lower compared to placebo (RR: 0.85, 95% CI: 0.77-0.93; NNT: 200), showing no heterogeneity or interaction with administration frequency (daily vs weekly). In addition, the GLP-1 RAs group exhibited a significantly lower rate of non-fatal strokes compared to placebo (RR: 0.87, 95% CI: 0.79-0.95; NNT: 250), with no heterogeneity or interaction based on administration frequency, route (oral vs subcutaneous), or diabetes presence. CONCLUSION In this meta-analysis of 11 CVOTs with 82,140 participants, GLP-1 RAs demonstrated a 16% relative reduction in stroke risk compared to placebo. This finding may increase implementation of GLP-1 RAs by stroke specialists in individuals with stroke and comorbid diabetes mellitus or obesity. DATA ACCESS STATEMENT The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Affiliation(s)
- Anastasia Adamou
- Department of Internal Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
- First Department of Propaedeutic Internal Medicine, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Fotios Barkas
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Haralampos Milionis
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - George Ntaios
- Department of Internal Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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2
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Nagel KE, Ramachandran R, Lipska KJ. Lessons From Insulin: Policy Prescriptions for Affordable Diabetes and Obesity Medications. Diabetes Care 2024; 47:1246-1256. [PMID: 38536964 PMCID: PMC11272967 DOI: 10.2337/dci23-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/19/2024] [Indexed: 07/27/2024]
Abstract
Escalating insulin prices have prompted public scrutiny of the practices of drug manufacturers, pharmacy benefit managers, health insurers, and pharmacies involved in production and distribution of medications. As a result, a series of policies have been proposed or enacted to improve insulin affordability and foster greater equity in access. These policies have implications for other diabetes and obesity therapeutics. Recent legislation, at both the state and federal level, has capped insulin out-of-pocket payments for some patients. Other legislation has targeted drug manufacturers directly in requiring rebates on drugs with price increases beyond inflation rates, an approach that may restrain price hikes for existing medications. In addition, government negotiation of drug pricing, a contentious issue, has gained traction, with the Inflation Reduction Act of 2022 permitting limited negotiation for certain high expenditure drugs without generic or biosimilar competition, including some insulin products and other diabetes medications. However, concerns persist that this may inadvertently encourage higher launch prices for new medications. Addressing barriers to competition has also been a priority such as through increased enforcement against anticompetitive practices (e.g., "product hopping") and reduced regulatory requirements for biosimilar development and market entry. A novel approach involves public production, exemplified by California's CalRx program, which aims to provide biosimilar insulins at significantly reduced prices. Achieving affordable and equitable access to insulin and other diabetes and obesity medications requires a multifaceted approach, involving state and federal intervention, ongoing policy evaluation and refinement, and critical examination of corporate influences in health care.
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Affiliation(s)
- Kathryn E. Nagel
- Divisions of Endocrinology and Pediatric Endocrinology, Massachusetts General Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Reshma Ramachandran
- Section of General Internal Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Yale Collaboration for Regulatory Rigor, Integrity, and Transparency, Yale School of Medicine, New Haven, CT
| | - Kasia J. Lipska
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
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3
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Chandiwana N, Manne-Goehler J, Gaayeb L, Calmy A, Venter WDF. Novel anti-obesity drugs for people with HIV. Lancet HIV 2024; 11:e502-e503. [PMID: 39009002 DOI: 10.1016/s2352-3018(24)00151-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 07/17/2024]
Affiliation(s)
- Nomathemba Chandiwana
- Wits Ezintsha, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa.
| | - Jennifer Manne-Goehler
- Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, MA, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Alexandra Calmy
- HIV/AIDS Unit, Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Willem D F Venter
- Wits Ezintsha, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
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4
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Mendes FF, Carvalho LIM, Lopes MB. Glucagon-Like Peptide-1 agonists in perioperative medicine: to suspend or not to suspend, that is the question. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2024; 74:844538. [PMID: 38944239 PMCID: PMC11295559 DOI: 10.1016/j.bjane.2024.844538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Affiliation(s)
- Florentino Fernandes Mendes
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Departamento de Clínica Cirúrgica, Programa de Pós-Graduação em Tecnologia da Informação e Gestão em Saúde, Porto Alegre, RS, Brazil.
| | - Lorena Ibiapina M Carvalho
- Hospital Prontomed, Teresina, PI, Brazil; Hospital Unimed Primavera, Departamento de Anestesiologia, Teresina, PI, Brazil
| | - Maristela Bueno Lopes
- Hospital São Marcelino Champagnat, Curitiba, PR, Brazil; Pontifícia Universidade Católica do Paraná, Departamento de Anestesiologia, Curitiba, PR, Brazil
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5
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Lee JM, Sharifi M, Oshman L, Griauzde DH, Chua KP. Dispensing of Glucagon-Like Peptide-1 Receptor Agonists to Adolescents and Young Adults, 2020-2023. JAMA 2024; 331:2041-2043. [PMID: 38776113 PMCID: PMC11112492 DOI: 10.1001/jama.2024.7112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/05/2024] [Indexed: 05/25/2024]
Abstract
This study uses data from US retail pharmacies to assess national GLP-1RA dispensing to adolescents and young adults from 2020-2023.
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Affiliation(s)
- Joyce M. Lee
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan Medical School, Ann Arbor
| | - Mona Sharifi
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut
| | - Lauren Oshman
- Department of Family Medicine, University of Michigan Medical School, Ann Arbor
| | - Dina H. Griauzde
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Kao-Ping Chua
- Susan B. Meister Child Health Evaluation and Research Center, University of Michigan Medical School, Ann Arbor
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6
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Kuo CB, Richmond F. Use of patent term extensions to restore regulatory time for medical devices in the United States. Expert Rev Med Devices 2024:1-7. [PMID: 38831711 DOI: 10.1080/17434440.2024.2363298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/30/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Medical devices can seek patent term extensions (PTEs), which extend market exclusivity to compensate for delays related to clinical trials and regulatory review. Pharmaceutical companies commonly use PTEs, but their use by medical device companies has not been clear. RESEARCH DESIGN AND METHODS We examined the use of PTEs by medical device companies between 1984 and 2024 using a database published in the Federal Register and a list published by the Patent and Trademark Office. RESULTS Only 178 medical device submissions were linked to a PTE application. They were mostly concentrated in 116 product codes associated with 15 medical specialties; nearly half were associated with cardiovascular devices. Numbers increased significantly in the past decade. Successful applications restored 987 days on average. CONCLUSIONS The patent restoration opportunity appears underutilized. It is unclear whether some companies do not recognize the opportunity it promises, or whether it does not meet their needs. Different business features and marketing strategies in device versus pharmaceutical industries may decrease the usefulness of the PTE program for these types of medical products. However, the finding that a small subset of manufacturers operating in competitive markets adopted patent extension strategies more commonly suggests a significant competitive advantage when competition increases.
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Affiliation(s)
- C Benson Kuo
- Department of Regulatory and Quality Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
| | - Frances Richmond
- Department of Regulatory and Quality Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
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7
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Giannakogeorgou A, Roden M. Role of lifestyle and glucagon-like peptide-1 receptor agonists for weight loss in obesity, type 2 diabetes and steatotic liver diseases. Aliment Pharmacol Ther 2024; 59 Suppl 1:S52-S75. [PMID: 38813830 DOI: 10.1111/apt.17848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/08/2023] [Accepted: 12/15/2023] [Indexed: 05/31/2024]
Abstract
BACKGROUND The current obesity pandemic has given rise to associated comorbidities and complications, including type 2 diabetes and metabolic dysfunction-associated steatotic liver disease (MASLD). During the last decade, certain glucagon-like peptide 1 receptor agonists (GLP-1RA), originally developed as antihyperglycemic drugs, also demonstrated efficacy for weight loss. AIMS To review shared pathophysiologic features of common metabolic diseases and compare therapeutic strategies to reduce body weight and related complications. METHODS We performed an extensive literature research to describe the effects of lifestyle modification, first-generation anti-obesity drugs, and GLP-1RA on weight loss in humans with obesity, type 2 diabetes and MASLD. RESULTS Until recently, treatment of obesity has been limited to lifestyle modification, which offer moderate degree and sustainability of weight loss. The few approved first-generation anti-obesity drugs are either limited to short term use or to certain forms of obesity. Some GLP-1RA significantly decrease caloric intake and body weight. Liraglutide and semaglutide have therefore been approved for treating people with obesity. They also lead to a reduction of hepatic fat content and inflammation in people with biopsy-confirmed MASLD. Possible limitations comprise adverse effects, treatment adherence and persistence. CONCLUSION Certain GLP-1RA are superior to lifestyle modification and first-generation anti-obesity drugs in inducing weight loss. They have therefore markedly changed the portfolio of obesity treatment with additional beneficial effects on steatotic liver disease.
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Affiliation(s)
- Anna Giannakogeorgou
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD e.V.), Partner Düsseldorf, Neuherberg, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD e.V.), Partner Düsseldorf, Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Germany
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8
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Sen S, Potnuru PP, Hernandez N, Goehl C, Praestholm C, Sridhar S, Nwokolo OO. Glucagon-Like Peptide-1 Receptor Agonist Use and Residual Gastric Content Before Anesthesia. JAMA Surg 2024; 159:660-667. [PMID: 38446466 PMCID: PMC10918573 DOI: 10.1001/jamasurg.2024.0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/31/2023] [Indexed: 03/07/2024]
Abstract
Importance Glucagon-like peptide-1 receptor agonist (GLP-1 RA) use is rapidly increasing in the US, driven by its expanded approval for weight management in addition to hyperglycemia management in patients with type 2 diabetes. The perioperative safety of these medications, particularly with aspiration risk under anesthesia, is uncertain. Objective To assess the association between GLP-1 RA use and prevalence of increased residual gastric content (RGC), a major risk factor for aspiration under anesthesia, using gastric ultrasonography. Design, Setting, and Participants This cross-sectional study prospectively enrolled patients from a large, tertiary, university-affiliated hospital from June 6 through July 12, 2023. Participants followed preprocedural fasting guidelines before an elective procedure under anesthesia. Patients with altered gastric anatomy (eg, from previous gastric surgery), pregnancy, recent trauma (<1 month), or an inability to lie in the right lateral decubitus position for gastric ultrasonography were excluded. Exposure Use of a once-weekly GLP-1 RA. Main Outcomes and Measures The primary outcome was the presence of increased RGC, defined by the presence of solids, thick liquids, or more than 1.5 mL/kg of clear liquids on gastric ultrasonography. Analysis was adjusted for confounders using augmented inverse probability of treatment weighting, a propensity score-based technique. Secondarily, the association between the duration of drug interruption and the prevalence of increased RGC was explored. Results Among the 124 participants (median age, 56 years [IQR, 46-65 years]; 75 [60%] female), the prevalence of increased RGC was 56% (35 of 62) in patients with GLP-1 RA use (exposure group) compared with 19% (12 of 62) in patients who were not taking a GLP-1 RA drug (control group). After adjustment for confounding, GLP-1 RA use was associated with a 30.5% (95% CI, 9.9%-51.2%) higher prevalence of increased RGC (adjusted prevalence ratio, 2.48; 95% CI, 1.23-4.97). There was no association between the duration of GLP-1 RA interruption and the prevalence of increased RGC (adjusted odds ratio, 0.86; 95% CI, 0.65-1.14). Conclusions and Relevance Use of a GLP-1 RA was independently associated with increased RGC on preprocedural gastric ultrasonography. The findings suggest that the preprocedural fasting duration suggested by current guidelines may be inadequate in this group of patients at increased risk of aspiration under anesthesia.
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Affiliation(s)
- Sudipta Sen
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Paul P. Potnuru
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Nadia Hernandez
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Christina Goehl
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Caroline Praestholm
- McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Srikanth Sridhar
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
| | - Omonele O. Nwokolo
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston
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9
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Xie C, Alkhouri N, Elfeki MA. Role of incretins and glucagon receptor agonists in metabolic dysfunction-associated steatotic liver disease: Opportunities and challenges. World J Hepatol 2024; 16:731-750. [PMID: 38818288 PMCID: PMC11135259 DOI: 10.4254/wjh.v16.i5.731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/18/2024] [Accepted: 04/03/2024] [Indexed: 05/22/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) has become the most common chronic liver disease worldwide, paralleling the rising pandemic of obesity and type 2 diabetes. Due to the growing global health burden and complex pathogenesis of MASLD, a multifaceted and innovative therapeutic approach is needed. Incretin receptor agonists, which were initially developed for diabetes management, have emerged as promising candidates for MASLD treatment. This review describes the pathophysiological mechanisms and action sites of three major classes of incretin/glucagon receptor agonists: glucagon-like peptide-1 receptor agonists, glucose-dependent insulinotropic polypeptide receptor agonists, and glucagon receptor agonists. Incretins and glucagon directly or indirectly impact various organs, including the liver, brain, pancreas, gastrointestinal tract, and adipose tissue. Thus, these agents significantly improve glycemic control and weight management and mitigate MASLD pathogenesis. Importantly, this study provides a summary of clinical trials analyzing the effectiveness and safety of incretin receptor agonists in MASLD management and provides an in-depth analysis highlighting their beneficial effects on improving liver function, hepatic steatosis, and intrahepatic inflammation. There are emerging challenges associated with the use of these medications in the real world, particularly adverse events, drug-drug interactions, and barriers to access, which are discussed in detail. Additionally, this review highlights the evolving role of incretin receptor agonists in MASLD management and suggests future research directions.
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Affiliation(s)
- Chencheng Xie
- Department of Internal Medicine, University of South Dakota Sanford School of Medicine, Sioux Falls, SD 57105, United States
- Department of Hepatology, Avera Mckennan University Hospital and Transplant Institute, Sioux Falls, SD 57105, United States
| | - Naim Alkhouri
- Department of Hepatology, Arizona Liver Health, Chandler, AZ 85712, United States
| | - Mohamed A Elfeki
- Department of Internal Medicine, University of South Dakota Sanford School of Medicine, Sioux Falls, SD 57105, United States
- Department of Hepatology, Avera McKennan University Hospital and Transplant Institute, Sioux Falls, SD 57105, United States.
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10
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Willson CM, Patel L, Middleton P, Desai M. Glucagon-Like Peptide-1 Agonists and General Anesthesia: Perioperative Considerations and the Utility of Gastric Ultrasound. Cureus 2024; 16:e58042. [PMID: 38738030 PMCID: PMC11088359 DOI: 10.7759/cureus.58042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2024] [Indexed: 05/14/2024] Open
Abstract
Glucagon-like peptide-1 (GLP-1) agonists are very popular and useful medications for the treatment of type 2 diabetes mellitus and obesity. Potent gastric emptying delay is common with these medications, serving as a major contributor to the postprandial glycemic control and weight loss benefits of these medications. Recently, multiple case reports and studies indicating safety risks for these medications and their use in patients planning to undergo general anesthesia have been published, as retained gastric contents can lead to intraoperative aspiration. New guidelines for these medications have been released to guide clinical practice for anesthesiologists. Some degree of preoperative cessation of these medications is required. At this time, the ideal window for cessation of these medications to optimize clinical efficacy while reducing aspiration risks has not yet been well elaborated on. Aspiration of gastric contents can still occur despite appropriate preoperative fasting in patients taking GLP-1 agonists. Gastric ultrasound appears to be an effective and objective way of preoperatively assessing a patient's stomach contents to make decisions regarding anesthetic management for patients prescribed these medications. This practice is limited by a general lack of training and implementation in current anesthesiology practice.
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Affiliation(s)
- Conner M Willson
- Department of Clinical Medicine, Des Moines University, Des Moines, USA
| | - Love Patel
- Department of Clinical Medicine, Des Moines University, Des Moines, USA
| | - Peter Middleton
- Department of Clinical Medicine, Des Moines University, Des Moines, USA
| | - Mihir Desai
- Department of Anesthesiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
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Mozaffarian D. GLP-1 Agonists for Obesity-A New Recipe for Success? JAMA 2024; 331:1007-1008. [PMID: 38421659 DOI: 10.1001/jama.2024.2252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
This Viewpoint discusses the drawbacks of using glucagon-like peptide 1 (GLP-1) agonists to treat obesity and presents an alternative approach of initial, staged GLP-1 agonist treatment supported by long-term lifestyle programming, including medically appropriate groceries or meals (“Food Is Medicine”), to address the cost, health, and equity burdens of obesity.
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Affiliation(s)
- Dariush Mozaffarian
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts
- Division of Cardiology, Tufts Medical Center and Tufts University School of Medicine, Boston, Massachusetts
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Alhiary R, Gabriele S, Kesselheim AS, Tu SS, Feldman WB. Delivery Device Patents on GLP-1 Receptor Agonists. JAMA 2024; 331:794-796. [PMID: 38315473 PMCID: PMC10845039 DOI: 10.1001/jama.2024.0919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024]
Abstract
This study analyzed the US Food and Drug Administration–listed patents on glucagon-like peptide 1 (GLP-1) receptor agonists to determine their claim characteristics and the potential barriers they pose to generic entry.
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Affiliation(s)
- Rasha Alhiary
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Sarah Gabriele
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Aaron S. Kesselheim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, Massachusetts
| | - S. Sean Tu
- West Virginia University College of Law, Morgantown
| | - William B. Feldman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Boston, Massachusetts
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13
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Watanabe JH, Kwon J, Nan B, Reikes A. Trends in glucagon-like peptide 1 receptor agonist use, 2014 to 2022. J Am Pharm Assoc (2003) 2024; 64:133-138. [PMID: 37821008 DOI: 10.1016/j.japh.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Recent Food and Drug Administration approvals of glucagon-like peptide 1 (GLP-1) receptor agonists linked to substantial weight loss have generated interest in demand projections. However, a longitudinal analysis in a large, diverse, current, real-world database has not been published. OBJECTIVES The study objective was to determine user frequency of GLP-1 receptor agonist products overall and by type 2 diabetes (T2D), cardiovascular disease (CVD), and overweight or obese status. Secondary objective was monthly growth rate estimation by product since first appearance in University of California Health. METHODS This retrospective cohort study included patients who were dispensed a GLP-1 receptor agonist from 2014 to 2022 in the University of California Health Data Warehouse. Exponential growth rates were estimated using a log-linear regression model. RESULTS Between 2014 and 2018, only Trulicity and Victoza exceeded 5000 annual users. Ozempic users increased from 569 in 2019 to 7667 in 2020. Use accelerated with more than 13,310 users in 2021 to surpass Trulicity. Ozempic count was 22,891 in 2022. Wegovy rose from 989 in 2021 to 2992 in 2022. Mounjaro increased to 1508 users in 2022. Although generally similar trends were observed for T2D, CVD, and overweight or obese subgroups, the ascent of Ozempic as most frequently used was more apparent in the overweight or obese group. The monthly growth rates were 83.9% for Ozempic, 119.2% for Wegovy, 84.8% for Rybelsus, 53.3% for Saxenda, 12.9% for Adlyxin, 78.8% for Trulicity, and 254.3% for Mounjaro. CONCLUSION This first cohort study of weight loss-associated GLP-1 receptor agonists in a large, diverse, state-wide health system demonstrated a rapid increased use that represents a clear and likely durable transition in utilization for this category. Informed decision making and longitudinal studies are needed to ensure evidence-concordant prescribing and supply stability.
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14
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Olsen A, Beall RF, Knox RP, Tu SS, Kesselheim AS, Feldman WB. Patents and regulatory exclusivities on FDA-approved insulin products: A longitudinal database study, 1986-2019. PLoS Med 2023; 20:e1004309. [PMID: 37971985 PMCID: PMC10653475 DOI: 10.1371/journal.pmed.1004309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 10/05/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Insulin is the primary treatment for type 1 and some type 2 diabetes but remains costly in the United States, even though it was discovered more than a century ago. High prices can lead to nonadherence and are often sustained by patents and regulatory exclusivities that limit competition on brand-name products. We sought to examine how manufacturers have used patents and regulatory exclusivities on insulin products approved from 1986 to 2019 to extend periods of market exclusivity. METHODS AND FINDINGS We used the publicly available Food and Drug Administration (FDA) Approved Drug Products with Therapeutic Equivalence Evaluations (Orange Book) to identify all approved biosynthetic insulin products. Individual products approved under the same New Drug Application (NDA)-e.g., a vial and pen-were considered as separate products for the purposes of analysis. We recorded all patents and regulatory exclusivities listed in the Orange Book on each product and used Google Patents to extract the timing of patent application and whether patents were obtained on delivery devices or others aspects of the product. The primary outcome was the duration of expected protection, which was determined by subtracting the FDA approval date for each product from its last-to-expire patent or regulatory exclusivity (whichever occurred later). We performed a secondary analysis that considered overall protection on insulin lines-defined as groups of products approved under the same NDA with the same active ingredients manufactured by the same company. We also examined competition from follow-on insulin products-defined as products approved with the same active ingredients as originators but manufactured by different companies (approved via a specific drug approval pathway under section 505(b)(2) of the Food, Drug, and Cosmetic Act). During the study period, the FDA approved 56 individual products across 25 different insulin lines and 5 follow-ons across 3 different insulin lines. Thirty-three (59%) of the 56 products were drug-device combinations. Manufacturers of 9 products approved during the study period obtained patents filed after FDA approval that extended their duration of expected protection (by a median of 6 years). Approximately 63% of all patents on drug-device combinations approved during the study period were related to delivery devices. The median duration of expected protection on insulin products was 16.0 years, and the median protection on insulin lines was 17.6 years. An important limitation of our analysis is that manufacturers may continue to add patents on existing insulin products while competitors may challenge patents; therefore, periods of protection may change over time. CONCLUSIONS Among several strategies that insulin manufacturers have employed to extend periods of market exclusivity on brand-name insulin products are filing patents after FDA approval and obtaining a large number of patents on delivery devices. Policy reforms are needed to promote timely competition in the pharmaceutical market and ensure that patients have access to low-cost drugs.
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Affiliation(s)
- Anders Olsen
- Program On Regulation, Therapeutics, And Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Reed F. Beall
- Program On Regulation, Therapeutics, And Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Ryan P. Knox
- Program On Regulation, Therapeutics, And Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard-MIT Center for Regulatory Science, Boston, Massachusetts, United States of America
| | - Sean S. Tu
- West Virginia University College of Law, Morgantown, West Virginia, United States of America
| | - Aaron S. Kesselheim
- Program On Regulation, Therapeutics, And Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - William B. Feldman
- Program On Regulation, Therapeutics, And Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
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