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Alkaabi MMS, Rabbani SA, Rao PGM, Mohamedelhassan MI. Treatment patterns and factors associated with discontinuation of monoclonal antibodies. SAGE Open Med 2024; 12:20503121241271817. [PMID: 39165864 PMCID: PMC11334246 DOI: 10.1177/20503121241271817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 07/03/2024] [Indexed: 08/22/2024] Open
Abstract
Background Biological agents have revolutionized care in specialties such as oncology, immunology, infectious diseases, and genetic disorders, offering targeted actions on specific molecules or select immune cells. Monoclonal antibodies, known for their high specificity and precision, represent one of the most significant and rapidly expanding categories of these agents. Understanding the drug utilization patterns of monoclonal antibodies is crucial to ensure their optimal use, especially given their high cost and potential adverse effects. Methods This analytical cross-sectional study was conducted in a secondary hospital in the United Arab Emirates. Patients of either gender receiving monoclonal antibodies at the study site were included. Treatment patterns, utilization, and factors associated with the discontinuation of monoclonal antibodies were assessed. Results Hyperlipidemia (136, 39.1%) was the most common indication for monoclonal antibodies, followed by prophylaxis of respiratory syncytial virus infection in congenital heart disease (104, 29.9%) and osteoporosis (42, 12.1%). Evolocumab was the most commonly prescribed monoclonal antibody (135, 38.8%), followed by palivizumab (104, 29.9%), and dupilumab (38, 10.9%). The majority of monoclonal antibodies demonstrated a prescribed daily dose to defined daily dose ratio of 1.0, reflecting their appropriate utilization. One hundred twenty-nine patients (37.0%) discontinued their treatment during the study. Patient's level of education (OR: 0.416, 95% CI: 0.183-0.943, p = 0.036), BMI (OR: 2.358, 95% CI: 1.164-4.777, p = 0.017), number of concomitant medications (OR: 2.457, 95% CI: 1.202-5.025, p = 0.014), and treatment duration (OR: 9.180, 95% CI: 4.909-17.165, p < 0.001) were identified as predictors of discontinuation of monoclonal antibodies. Conclusion This study represents the first comprehensive investigation in the United Arab Emirates focused on treatment patterns, utilization, and discontinuation of monoclonal antibodies among the local population. Monoclonal antibodies were prescribed for the management of a wide range of clinical conditions. The study reports appropriate utilization of most monoclonal antibodies and identifies factors such as patient education level, BMI, concomitant medications, and treatment duration as independent predictors of monoclonal antibody treatment discontinuation.
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Affiliation(s)
- Muzoon Matar Saleh Alkaabi
- Department of Clinical Pharmacy and Pharmacology, RAK College of Pharmacy, RAK Medical and Health Sciences University, Ras Al Khaimah, UAE
| | - Syed Arman Rabbani
- Department of Clinical Pharmacy and Pharmacology, RAK College of Pharmacy, RAK Medical and Health Sciences University, Ras Al Khaimah, UAE
| | - Padma GM Rao
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, MAHE, Manipal, Karnataka, India
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2
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Nelson AJ, Pagidipati NJ, Bosworth HB. Improving medication adherence in cardiovascular disease. Nat Rev Cardiol 2024; 21:417-429. [PMID: 38172243 DOI: 10.1038/s41569-023-00972-1] [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] [Accepted: 11/27/2023] [Indexed: 01/05/2024]
Abstract
Non-adherence to medication is a global health problem with far-reaching individual-level and population-level consequences but remains unappreciated and under-addressed in the clinical setting. With increasing comorbidity and polypharmacy as well as an ageing population, cardiovascular disease and medication non-adherence are likely to become increasingly prevalent. Multiple methods for detecting non-adherence exist but are imperfect, and, despite emerging technology, a gold standard remains elusive. Non-adherence to medication is dynamic and often has multiple causes, particularly in the context of cardiovascular disease, which tends to require lifelong medication to control symptoms and risk factors in order to prevent disease progression. In this Review, we identify the causes of medication non-adherence and summarize interventions that have been proven in randomized clinical trials to be effective in improving adherence. Practical solutions and areas for future research are also proposed.
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Affiliation(s)
- Adam J Nelson
- Victorian Heart Institute, Melbourne, Victoria, Australia
- Duke Clinical Research Institute, Duke University, Durham, NC, USA
| | | | - Hayden B Bosworth
- Duke Clinical Research Institute, Duke University, Durham, NC, USA.
- Population Health Sciences, Duke University, Durham, NC, USA.
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3
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Naoum I, Saliba W, Aker A, Zafrir B. Lipid-lowering therapy with inclisiran in the real-world setting: Initial data from a national health care service. J Clin Lipidol 2024:S1933-2874(24)00186-7. [PMID: 38908973 DOI: 10.1016/j.jacl.2024.05.003] [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: 02/21/2024] [Revised: 04/18/2024] [Accepted: 05/20/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND Inclisiran, a small-interfering RNA enabling long-term inhibition of PCSK9 synthesis, demonstrates good safety and efficacy profile in clinical trials. Real-world data on the potential to attain lipid-goals and reduce treatment gaps is lacking. OBJECTIVES To investigate the implementation of inclisiran in real-world clinical setting. METHODS Data from a nationwide healthcare organization on patients initiating inclisiran between 3/2022-11/2023. Patients' characteristics, lipid-lowering therapies, post-treatment reduction in low-density lipoprotein cholesterol (LDL-C), and attainment of treatment goals, were evaluated. RESULTS Inclisiran was initiated by 503 patients (57 % women; mean age 66±11 years). Cardiovascular disease was present in 54 %, and peak LDL-C levels >190 mg/dL documented in 64 %. Prior exposure to PCSK9 monoclonal antibodies was evident in 28 %. Lipid profile >2 months after filling first prescription, was available in 397 patients (347 with ≥2 injections). In patients treated by inclisiran only (n = 254), median LDL-C reduction from peak levels was 57 % (IQR, 48 %-67 %), and from pre-injection levels 40 % (19 %-54 %). In those with concomitant lipid-lowering therapies (n = 143), median LDL-C reduction from peak levels was 66 % (IQR, 55 %-73 %), and from pre-injection levels 46 % (23 %-59 %). LDL-C < 70 mg/dL was attained by 39 % and LDL-C < 55 mg/dL by 21.9 %. Of those treated with concomitant statin therapy, 38 % attained LDL-C < 55 mg/dL. Overall, 6.5 % discontinued inclisiran therapy after initial injection. CONCLUSIONS In real-world practice, inclisiran showed good efficacy in reducing LDL-C with high interindividual variability. However, attainment rates of lipid-goals were suboptimal due to limited use of combination lipid-lowering therapy and high-rates of severe hypercholesterolemia in our patient population cohort.
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Affiliation(s)
- Ibrahim Naoum
- Department of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel (Drs Naoum, Aker, Zafrir)
| | - Walid Saliba
- Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel (Dr Saliba); Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel (Drs Saliba, Zafrir)
| | - Amir Aker
- Department of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel (Drs Naoum, Aker, Zafrir)
| | - Barak Zafrir
- Department of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel (Drs Naoum, Aker, Zafrir); Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel (Drs Saliba, Zafrir).
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Pang J, Sanfilippo FM, Chan DC, Watts GF. Adherence to pharmacotherapy: sine qua non for reducing cumulative risk of premature coronary disease in familial hypercholesterolemia. Curr Opin Endocrinol Diabetes Obes 2024; 31:22-30. [PMID: 37902122 DOI: 10.1097/med.0000000000000842] [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: 10/31/2023]
Abstract
PURPOSE OF REVIEW Familial hypercholesterolemia (FH) is a dominant and highly penetrant monogenic disorder present from birth that markedly elevates plasma low-density lipoprotein (LDL)-cholesterol concentration and, if untreated, leads to atherosclerotic cardiovascular disease (ASCVD). The risk of ASCVD can be substantially reduced with lipid-lowering treatment (LLT). However, adherence to LLT remains a major challenge in FH patients and an under-recognized issue. We review several barriers to treatment adherence and implementation strategies for improving adherence in patients with FH. RECENT FINDINGS Barriers that negatively affect patient adherence to treatment include the misunderstanding of perceived and actual risk of FH and the benefits of LLT, inadequate knowledge, lack of standardization of treatment, insufficient monitoring of LDL-cholesterol level, and inequalities in healthcare resources. Education of patients, carers and healthcare providers, guideline-directed treatment goals, regular monitoring, medication regimen simplification and greater access to established and new drugs are crucial enablers for improving adherence to treatment. However, given FH is present from birth, strategies for life-long adherence from childhood or young adulthood is critically important and requires further study. To be effective, strategies should be multifaceted, targeted and patient-centred involving a multidisciplinary-team with support from family, communities and peer groups. SUMMARY FH confers a significant risk for ASCVD from a young age. Achieving better medication adherence is foundational for improving clinical outcomes and reducing the burden of atherosclerosis over a lifetime. Identification of key barriers and enablers are critical for implementing better adherence to treatment across the life-course of patients with FH.
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Affiliation(s)
- Jing Pang
- Medical School, University of Western Australia
| | - Frank M Sanfilippo
- Cardiovascular Epidemiology Research Centre, School of Population and Global Health, University of Western Australia
| | - Dick C Chan
- Medical School, University of Western Australia
| | - Gerald F Watts
- Medical School, University of Western Australia
- Lipid Disorders Clinic, Departments of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
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Brandts J, Tittel SR, Bramlage P, Danne T, Brix JM, Zimny S, Heyer CHJ, Holl RW, Müller-Wieland D. Low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol in type 1 diabetes and type 2 diabetes: Lipid goal attainment in a large German-Austrian diabetes registry. Diabetes Obes Metab 2023; 25:3700-3708. [PMID: 37694759 DOI: 10.1111/dom.15264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 09/12/2023]
Abstract
AIM To assess the implementation of the 2019 European Society of Cardiology (ESC)/European Atherosclerosis Society (EAS) guideline recommendations for lipid-lowering therapies among more than 30 000 patients with type 1 diabetes (T1D) and type 2 diabetes (T2D) in a German and Austrian registry from 2020 to 2022. MATERIALS AND METHODS Registry data from 2020 and 2021 of 32 170 adult patients (8314 patients with T1D and 23 856 with T2D) were stratified according to the 2019 ESC/EAS risk categories, and guideline-based low-density lipoprotein cholesterol (LDL-C) and non-high-density lipoprotein cholesterol (non-HDL-C) goal attainment was analysed. RESULTS In patients with T1D (median age 38.35 [20.51-57.13] years), overall statin use was 19.3%, ezetimibe use was 2.2% and the use of proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors or fibrates was less than 1%. In patients with T2D (median age 68.76 [58.86-78.39] years), 45.7% received statins, 3.4% received ezetimibe, and fibrates and PCSK9 inhibitors were used by 1% and 0.1%, respectively. Among patients with T1D, 6.16% reached their risk-based recommended LDL-C goal of less than 55 mg/dL (very high risk), 10.97% of less than 70 mg/dL (high risk), and 69.50% of less than 100 mg/dL (moderate risk), respectively. In patients with T2D, 11.81% reached their risk-based goal of LDL-C less than 55 mg/dL, 16.25% of less than 70 mg/dL, and 51.33% of less than 100 mg/dL. Non-HDL-C goals were reached more often, with 15.3%, 25.52% and 91.61% in patients with T1D and 18.56%, 17.96% and 82.30% in patients with T2D for very high, high and moderate risk, respectively. CONCLUSION Approximately 2 years after publication of the guidelines, LDL-C and non-HDL-C goal attainment was rarely achieved in patients with T1D and T2D with a high or very high cardiovascular risk.
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Affiliation(s)
- Julia Brandts
- Department of Medicine I, University Hospital Aachen, Aachen, Germany
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK
| | - Sascha R Tittel
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Munich, Germany
| | - Peter Bramlage
- Institute for Pharmacology and Preventive Medicine, Cloppenburg, Germany
| | - Thomas Danne
- Kinderkrankenhaus auf der Bult, Diabeteszentrum für Kinder und Jugendliche, Hannover, Germany
| | - Johanna M Brix
- Department of Medicine I, Vienna, Austria
- Karl Landsteiner Institute for obesity and metabolism, Vienna, Austria
| | - Stefan Zimny
- Department of General Internal Medicine, Endocrinology and Diabetes, HELIOS Clinic Schwerin, Schwerin, Germany
| | | | - Reinhard W Holl
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Munich, Germany
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Sbrana F, Dal Pino B, Bigazzi F, Ripoli A, Corciulo C, Lo Surdo G, Biagini S, Sampietro T. Major cardiovascular events increase in long-term proprotein convertase subtilisin/kexin type 9 inhibitors therapy: the Tuscany cost-effective study. J Cardiovasc Med (Hagerstown) 2023; 24:808-814. [PMID: 37773882 DOI: 10.2459/jcm.0000000000001546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
BACKGROUND Proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) represent a breakthrough in the treatment of hypercholesterolemia. The aim of this study was to perform a multicentre prospective analysis on the effects of PCSK9i since their distribution in Italy. METHODS During the study period (July 2017 to February 2022) 246 patients (mean age 61 ± 11 years, male 73%) who were evolocumab (142/246) or alirocumab (104/246) new users were enrolled in the CERTI (Costo Efficacia Regione Toscana Inibitori PCSK9) study. Lipid value, adverse events (AEs), major cardiovascular events (MACEs) and intima-media thickness were analysed. RESULTS PCSK9i therapy allowed a significant improvement in patients' lipid profile [total cholesterol -35%, P < 0.001; triglycerides -9%, P < 0.05; low-density lipoprotein (LDL) cholesterol -51%, P < 0.001; Lp(a) levels -4%, P < 0.05], maintained during the follow-up. No significant variations in intima-media thickness were observed. In the subgroup of patients with more than 1 year of PCSK9i therapy (165/246 patients) we highlighted: a 66% reduction in MACEs compared with the year before recruitment; a progressive increase in MACEs during the follow-up (MACEs event/rate at first year 0.08 vs. MACEs event/rate at year 5: 0.47); a patients cluster with late MACEs older, with higher prevalence of hypertension, smoking habit and peripheral vascular disease. During the follow-up, we recorded AEs in 31% of patients, which mainly resulted in reduction/discontinuation of lipid-lowering therapy for 50 patients or in discontinuation/shift of PCSK9i (respectively 8 and 6 cases). CONCLUSION Our data agree with the large evidence on the effectiveness/tolerability of PCSK9i therapy; however, although PCSK9i represents a good cholesterol-lowering therapeutic option, our study shows a progressive increase in MACEs during the late follow-up that deserve further research.
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Affiliation(s)
- Francesco Sbrana
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
| | - Beatrice Dal Pino
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
| | - Federico Bigazzi
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
| | - Andrea Ripoli
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
| | - Carmen Corciulo
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
| | - Giuseppa Lo Surdo
- UOC Farmacia Ospedaliera, Fondazione Toscana Gabriele Monasterio, Massa, Italy
| | - Stefania Biagini
- UOC Farmacia Ospedaliera, Fondazione Toscana Gabriele Monasterio, Massa, Italy
| | - Tiziana Sampietro
- UO Lipoapheresis and Center for Inherited Dyslipidemias, Fondazione Toscana Gabriele Monasterio, Pisa
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Zafrir B, Aker A, Naoum I, Saliba W. Guideline-Directed Low-Density Lipoprotein Cholesterol Management After Acute Ischemic Stroke: Findings from a National Health Care Service. Am J Cardiol 2023; 203:332-338. [PMID: 37517128 DOI: 10.1016/j.amjcard.2023.07.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/02/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023]
Abstract
Patients with ischemic stroke are at high risk for future cardiovascular events and should be treated intensively with lipid-modifying agents. Combination lipid-lowering therapies are often needed to achieve updated guideline-directed treatment goals. However, real-world data on intensification of lipid-lowering therapies and attainment of low-density lipoprotein cholesterol (LDL-C) targets early after ischemic stroke are limited. We extracted data from the largest healthcare provider in Israel on patients hospitalized with acute ischemic stroke between January 2020 and February 2022. Included were 3,027 patients surviving ≥1 year after stroke, with documented LDL-C levels and lipid-lowering medications at 2 time periods (0 to 3 months and 6 to 12 months after discharge). Participants were classified according to preexisting stroke and/or coronary artery disease. The use of combination lipid-lowering therapy (ezetimibe and/or proprotein convertase subtilisin/kexin type 9 [monoclonal antibodies] inhibitor plus statin) in the study population increased between the 2 timepoints from 3.6% to 5.1%, reaching 10.5% in those with previous coronary artery disease and stroke. LDL-C levels <70 and <55 mg/100 ml were attained by 42.3% and 22.9% of patients early after hospitalization, and in 49.5% and 27.1% during 6 to 12 months after hospitalization, respectively. Attainment of guideline-recommended LDL-C goals was higher in patients treated with combination lipid-lowering therapies and in those with preexisting cardiovascular disease. In conclusion, despite the advances in drug development and the availability of several mechanisms to lower cholesterol levels, the attainment of guideline-recommended LDL-C targets after acute ischemic stroke is suboptimal. Intensification of treatment with combination lipid-lowering therapies after hospitalization is uncommonly performed in clinical practice, even in those with preexisting cardiovascular disease.
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Affiliation(s)
- Barak Zafrir
- Departments of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel; Ruth and Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Medicine, Haifa, Israel.
| | - Amir Aker
- Departments of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Ibrahim Naoum
- Departments of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Walid Saliba
- Ruth and Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Medicine, Haifa, Israel; Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
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8
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Brandts J, Ray KK. Novel and future lipid-modulating therapies for the prevention of cardiovascular disease. Nat Rev Cardiol 2023; 20:600-616. [PMID: 37055535 DOI: 10.1038/s41569-023-00860-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 04/15/2023]
Abstract
Lowering the levels of LDL cholesterol in the plasma has been shown to reduce the risk of atherosclerotic cardiovascular disease (ASCVD). Several other lipoproteins, such as triglyceride-rich lipoproteins, HDL and lipoprotein(a) are associated with atherosclerosis and ASCVD, with strong evidence supporting causality for some. In this Review, we discuss novel and upcoming therapeutic strategies targeting different pathways in lipid metabolism to potentially attenuate the risk of cardiovascular events. Key proteins involved in lipoprotein metabolism, such as PCSK9, angiopoietin-related protein 3, cholesteryl ester transfer protein and apolipoprotein(a), have been identified as viable targets for therapeutic intervention through observational and genetic studies. These proteins can be targeted using a variety of approaches, such as protein inhibition or interference, inhibition of translation at the mRNA level (with the use of antisense oligonucleotides or small interfering RNA), and the introduction of loss-of-function mutations through base editing. These novel and upcoming strategies are complementary to and could work synergistically with existing therapies, or in some cases could potentially replace therapies, offering unprecedented opportunities to prevent ASCVD. Moreover, a major challenge in the prevention and treatment of non-communicable diseases is how to achieve safe, long-lasting reductions in causal exposures. This challenge might be overcome with approaches such as small interfering RNAs or genome editing, which shows how far the field has advanced from when the burden of achieving this goal was placed upon patients through rigorous adherence to daily small-molecule drug regimens.
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Affiliation(s)
- Julia Brandts
- Imperial Centre for Cardiovascular Disease Prevention (ICCP), Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK
- Department of Internal Medicine I, University Hospital RWTH Aachen, Aachen, Germany
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention (ICCP), Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK.
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9
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Patient adherence to fully reimbursed proprotein convertase subtilisin/kexin type 9 inhibitor (PCSK9i) treatment. Wien Klin Wochenschr 2023:10.1007/s00508-023-02154-y. [PMID: 36808306 DOI: 10.1007/s00508-023-02154-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/12/2023] [Indexed: 02/23/2023]
Abstract
AIMS Proprotein convertase subtilisin/kexin-type 9 inhibitor (PCSK9i) treatment reduces cardiovascular events when taken over a long time for secondary prevention. Data on treatment adherence are scarce and maybe affected by co-payment of patients. The aim of this study was to elucidate PCSK9i treatment adherence in a setting of full cost coverage as it is the case in a number of European countries. METHODS AND RESULTS Baseline data and prescription patterns of all 7302 patients with PCSK9i prescriptions dispensed on the account of Austrian Social Insurances between September 2015 and December 2020 were retrieved and analyzed. A gap of ≥ 60 days between prescriptions was defined as treatment discontinuation. Patient adherence was evaluated as the proportion of days covered (PDC) over the observation period and treatment discontinuation rates were investigated by the Kaplan-Meier method. The mean PDC was 81.8% and was significantly lower in female patients. A PDC of ≥ 80% indicating adequate adherence was found in 73.8%. Of the study population 27.4% discontinued PCSK9i treatment and 49.2% thereof re-initiated treatment during the observation period. Most of the patients who discontinued treatment did so within the first year. Male patients and patients under 64 years showed significantly lower discontinuation and higher re-initiation rates. CONCLUSION Considering the high PDC and low discontinuation rates, the majority of patients adhere to PCSK9i treatment. Hence, in a system where PCSK9i treatment is made available at virtually no costs for patients this highly effective treatment is well-accepted as a long-term treatment.
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10
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Ray KK, Bruckert E, Peronne-Filardi P, Ebenbichler C, Vogt A, Bridges I, Sibartie M, Dhalwani N. Long-term persistence with evolocumab treatment and sustained reductions in LDL-cholesterol levels over 30 months: Final results from the European observational HEYMANS study. Atherosclerosis 2023; 366:14-21. [PMID: 36696747 DOI: 10.1016/j.atherosclerosis.2023.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/13/2022] [Accepted: 01/10/2023] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND AIMS Variability in low-density lipoprotein-cholesterol (LDL-C) level control at a population level is associated with poor cardiovascular outcomes. Limited data exist on LDL-C level variability or long-term persistence with the monoclonal antibody evolocumab in routine clinical practice. Using data from the HEYMANS registry, this analysis aimed to assess evolocumab persistence and discontinuation over 30 months of evolocumab treatment and to evaluate at a population level the variability in LDL-C level reductions during the study period. METHODS HEYMANS was a prospective registry of adults initiating evolocumab in routine clinical practice in 12 European countries. Data were collected for up to and including 6 months before evolocumab initiation and up to 30 months after. Evolocumab discontinuation was analysed for two time periods: 0-12 months and 12-30 months. RESULTS In total, 1951 patients were included in the study. The median reduction in LDL-C levels was 58% within 3 months after evolocumab initiation; this reduction was maintained over 30 months. More than 90% of patients continued receiving evolocumab at 12 months and 30 months of follow-up. Of patients with an LDL-C level measurement during follow-up, approximately 85% achieved a ≥30% reduction from baseline at each follow-up visit and approximately 60% achieved a ≥50% reduction. CONCLUSIONS Evolocumab therapy was associated with sustained LDL-C level reductions up to 30 months, and persistence with evolocumab remained high, both at 12 and 30 months. Expanding the use of monoclonal antibodies such as evolocumab could provide improvements in LDL-C level control at a population level in European clinical practice.
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Affiliation(s)
- Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention and Imperial Clinical Trials Unit, Imperial College London, London, UK.
| | - Eric Bruckert
- Department of Medicine, Sorbonne University of Paris, Paris, France
| | | | | | - Anja Vogt
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
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11
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Real-World Use of Alirocumab: Experience from a Large Healthcare Provider. J Clin Med 2023; 12:jcm12031084. [PMID: 36769732 PMCID: PMC9917622 DOI: 10.3390/jcm12031084] [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] [Received: 12/04/2022] [Revised: 01/08/2023] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
With the emerging use of anti-PCSK9 monoclonal antibodies for lowering low-density lipoprotein cholesterol (LDL-C) levels, real-world evidence (RWE) is needed to evaluate drug effectiveness. This study aimed to characterize new users of alirocumab and evaluate its effectiveness in achieving LDL-C target levels. Included were patients initiating treatment with alirocumab from 1 August 2016 to 1 May 2020, with blood lipids evaluations during baseline (180 days prior to therapy initiation) and after 120 (±60) days of follow-up. Patients with treatment intensification during the follow-up period were excluded. LDL-C change from baseline and reaching LDL-C target levels, according to 2019 ESC/EAS guidelines, were evaluated. Among 623 included patients, 50.2% were men, the mean age was 65 years (±9 y), 62% were classified as very-high risk, and 76% had statin intolerance. During the follow-up, 65% (n = 407) were treated only with alirocumab. In 90% the initiation dose was 75 mg, and 21% were up-titrated. Alirocumab was associated with a 31.7% reduction in LDL-C, with 20.5% of patients reaching target levels. In this RWE study, alirocumab was used primarily as a single agent for eligible patients. Suboptimal use and adherence to therapy may have led to a lower LDL-C reduction compared to previous RCTs and most reported real-world studies.
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12
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Lee RG, Mazzola AM, Braun MC, Platt C, Vafai SB, Kathiresan S, Rohde E, Bellinger AM, Khera AV. Efficacy and Safety of an Investigational Single-Course CRISPR Base-Editing Therapy Targeting PCSK9 in Nonhuman Primate and Mouse Models. Circulation 2023; 147:242-253. [PMID: 36314243 DOI: 10.1161/circulationaha.122.062132] [Citation(s) in RCA: 68] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND VERVE-101 is an investigational in vivo CRISPR base-editing medicine designed to alter a single DNA base in the PCSK9 gene, permanently turn off hepatic protein production, and thereby durably lower low-density lipoprotein cholesterol. We test the efficacy, durability, tolerability, and potential for germline editing of VERVE-101 in studies of nonhuman primates and a murine F1 progeny study. METHODS Cynomolgus monkeys were given a single intravenous infusion of a vehicle control (n=10) or VERVE-101 at a dose of 0.75 mg/kg (n=4) or 1.5 mg/kg (n=22) with subsequent follow-up up to 476 days. Two studies assessed the potential for germline editing, including sequencing sperm samples from sexually mature male nonhuman primates treated with VERVE-101 and genotyping offspring from female mice treated with the murine surrogate of VERVE-101 (VERVE-101mu). RESULTS Liver biopsies 14 days after dosing noted mean PCSK9 editing of 46% and 70% in monkeys treated with VERVE-101 at 0.75 and 1.5 mg/kg, respectively. This translated into mean reductions in blood PCSK9 (proprotein convertase subtilisin/kexin type 9) of 67% and 83% and reductions of low-density lipoprotein cholesterol of 49% and 69% at the 0.75 and 1.5 mg/kg doses, respectively, assessed as time-weighted average change from baseline between day 28 and up to 476 days after dosing. Liver safety monitoring noted a transient rise in alanine aminotransferase and aspartate aminotransferase concentrations after infusion that fully resolved by day 14 with no accompanying change in total bilirubin. In a subset of monkeys necropsied 1 year after dosing, no findings related to VERVE-101 were identified on macroscopic and histopathologic assessment of the liver and other organs. In the study to assess potential germline editing of male nonhuman primates, sperm samples collected after VERVE-101 dosing showed no evidence of PCSK9 editing. Among 436 offspring of female mice treated with a saturating dose of VERVE-101mu, the PCSK9 edit was transmitted in 0 of 436 animals. CONCLUSIONS VERVE-101 was well tolerated in nonhuman primates and led to 83% lower blood PCSK9 protein and 69% lower low-density lipoprotein cholesterol with durable effects up to 476 days after dosing. These results have supported the initiation of a first-in-human clinical trial in patients with heterozygous familial hypercholesterolemia and atherosclerotic cardiovascular disease.
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Mongiello P, Petti R, Ciaccia A, Grazia Morgese M, Lombardi R. Analysis of Adherence to anti-PCSK9 Antibody Therapy among Patients from Italy. Cardiovasc Hematol Disord Drug Targets 2023; 23:111-121. [PMID: 37565557 DOI: 10.2174/1871529x23666230810094738] [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] [Received: 01/09/2023] [Revised: 06/20/2023] [Accepted: 07/10/2023] [Indexed: 08/12/2023]
Abstract
INTRODUCTION Hypercholesterolemia is one of the main risk factors associated with atherosclerotic cardiovascular disease and coronary heart disease. Statins are the standard cholesterollowering treatment; however, they have shown, in clinical practice, a reduced adherence to therapy (<50%) and a modest achievement of the expected outcomes for treatment. This condition prompt scientific research to develop drugs with different mechanisms of action. In this regard, excellent results have been achieved with therapeutic use of monoclonal antibodies against PCSK9, enzyme involved in recycling of Low density lipoprotein receptors (LDLR) on the hepatocytes surface. Indeed, the reduction in receptor density caused by PCSK9 is associated with increased serum LDL levels. MATERIALS AND METHODS After the data extraction of all Local Health Authority (ASL) of Foggia patients (302) who received, in 2021, at least one administration of Alirocumab or Evolocumab, the therapeutic adherence was calculated, for each individual patient, by indirect method (calculation of the Medication Possession Ratio - MPR). According to scientific literature, patients were classified into: adherents (MPR>80%), average adherents (MPR between 40% and 80%) and non-adherents (MPR<40%). Patients were then stratified by gender and age groups (0-18, 19-49, 50-64, >65). RESULTS The results show that, for both drugs (Alirocumab and Evolocumab), women are more adherent than men and the group of young adults (19-49 years old) is the one with the lowest adherence to therapy, 69% for Alirocumab and 56% for Evolocumab. CONCLUSION According to Italian Drug Agency (AIFA), poor therapeutic adherence is the main cause of ineffectiveness of drug therapies, and it is associated with increased hospitalizations, morbidity and mortality. Data obtained from this study allow to detect the categories of patients who need specific programs about the correct use of drugs, in order to increase therapeutic adherence and facilitate the achievement of the expected outcomes for treatment.
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Affiliation(s)
- Paolo Mongiello
- Specializzando in Farmacia Ospedaliera presso l'Università degli Studi di Bari e tirocinante presso la Struttura Complessa di Farmacia Territoriale dell'Azienda Sanitaria Locale di Foggia, 71121 Foggia, Italy
| | - Raffaele Petti
- Dirigente Farmacista presso la Struttura Complessa di Farmacia Territoriale dell'Azienda Sanitaria Locale di Foggia, 71121 Foggia, Italy
| | - Andrea Ciaccia
- Dirigente Farmacista presso la Struttura Complessa di Farmacia Territoriale dell'Azienda Sanitaria Locale di Foggia, 71121 Foggia, Italy
| | - Maria Grazia Morgese
- Professoressa presso il Dipartimento di Medicina Clinica e Sperimentale dell'Università degli Studi di Foggia, 71122 Foggia, Italy
| | - Renato Lombardi
- Direttore della Struttura Complessa di Farmacia Territoriale dell'Azienda Sanitaria Locale di Foggia, 71121 Foggia, Italy
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14
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Cefalù AB, Garbelotto R, Mombelli G, Pirro M, Rubba P, Arca M, Borghi C, Bonomo K, Gonnelli S, Massaroni K, Tirone G, Averna M. A subgroup analysis of the ODYSSEY APPRISE study: Safety and efficacy of alirocumab in the Italian cohort. Nutr Metab Cardiovasc Dis 2022; 32:2638-2646. [PMID: 36064689 DOI: 10.1016/j.numecd.2022.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 06/30/2022] [Accepted: 07/21/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND AND AIMS ODYSSEY APPRISE trial evaluated efficacy and safety of alirocumab in 994 patients with hypercholesterolemia and high CV risk in a real-life setting. The aim of the present report is to detail on the Italian cohort enrolled and treated in the trial. METHODS AND RESULTS The methodology of the of the multinational, single-arm, Phase 3b open-label ODYSSEY APPRISE (Clinicaltrials.gov: NCT02476006) has been previously reported. 255 Italian patients were enrolled and treated according to the trial protocol. Overall mean exposure to alirocumab was 83.3 ± 27.7 weeks. At week 12, LDL-C decreased by 51.3 ± 23.1% and this reduction was overall maintained for the duration of the study. A similar reduction was observed in patients with and without heterozygous familial hypercholesterolemia (HeFH 50.7% ± 23.9 vs. non-FH, 53.6% ± 19.6). LDL-C was reduced below 1.8 mmol/L and/or by ≥ 50% reduction from baseline in 62% of patients overall (61% in HeFH and 67% in non-FH). Alirocumab was similarly well tolerated in the Italian cohort as in the entire study population and the more common treatment emergent adverse events (TEAEs) were influenza, myalgia and nasopharyngitis. The incidence LDL-C levels <25 mg/dl and <15 mg/dl, was 8.2% and 2.9% respectively. CONCLUSION The efficacy and safety of alirocumab in a real-life setting, in the Italian subgroup of patients are consistent with findings in the entire study population and confirm that alirocumab is a beneficial approach to further reduce LDL-C levels in patients at high CV risk on maximally tolerated conventional lipid lowering treatment. GOV IDENTIFIER NCT02476006.
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Affiliation(s)
- Angelo B Cefalù
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy.
| | - Raffaella Garbelotto
- Unit of General Medicine, Presidio Ospedaliero di Vittorio Veneto, Vittorio Veneto, Italy
| | - Giuliana Mombelli
- Centro Dislipidemie, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Matteo Pirro
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases Department of Medicine and Surgery University of Perugia Perugia Italy
| | - Paolo Rubba
- Dipartimento di Medicina Clinica e Chirurgia, Università "Federico II" di Napoli, Italy
| | - Marcello Arca
- Department of Translational and Precision Medicine "Sapienza" University of Rome Rome Italy
| | - Claudio Borghi
- Medical and Surgical Sciences Department, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Katia Bonomo
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, Italy
| | - Stefano Gonnelli
- Department of Medicine, Surgery and Neuroscience, Policlinico Le Scotte, University of Siena, Siena, Italy
| | | | | | - Maurizio Averna
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy.
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Cupido AJ, Reeskamp LF, Hingorani AD, Finan C, Asselbergs FW, Hovingh GK, Schmidt AF. Joint Genetic Inhibition of PCSK9 and CETP and the Association With Coronary Artery Disease: A Factorial Mendelian Randomization Study. JAMA Cardiol 2022; 7:955-964. [PMID: 35921096 PMCID: PMC9350849 DOI: 10.1001/jamacardio.2022.2333] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 05/29/2022] [Indexed: 12/30/2022]
Abstract
Importance Cholesteryl ester transfer protein inhibition (CETP) has been shown to increase levels of high-density lipoprotein cholesterol (HDL-C) and reduce levels of low-density lipoprotein cholesterol (LDL-C). Current LDL-C target attainment is low, and novel phase 3 trials are underway to investigate whether CETP inhibitors result in reduction of cardiovascular disease risk in high-risk patients who may be treated with PCSK9-inhibiting agents. Objective To explore the associations of combined reduction of CETP and PCSK9 concentrations with risk of coronary artery disease (CAD) and other clinical and safety outcomes. Design, Setting, and Participants Two-sample 2 × 2 factorial Mendelian randomization study in a general population sample that includes data for UK Biobank participants of European ancestry. Exposures Separate genetic scores were constructed for CETP and PCSK9 plasma protein concentrations, which were combined to determine the associations of combined genetically reduced CETP and PCSK9 concentrations with disease. Main Outcomes and Measures Blood lipid and lipoprotein concentrations, blood pressure, CAD, age-related macular degeneration, type 2 diabetes, any stroke and ischemic stroke, Alzheimer disease, vascular dementia, heart failure, atrial fibrillation, chronic kidney disease, asthma, and multiple sclerosis. Results Data for 425 354 UKB participants were included; the median (IQR) age was 59 years (51-64), and 229 399 (53.9%) were female. The associations of lower CETP and lower PCSK9 concentrations with CAD are similar when scaled per 10-mg/dL reduction in LDL-C concentrations (CETP: odds ratio [OR], 0.74; 95% CI, 0.67 to 0.81; PCSK9: OR, 0.75; 95% CI, 0.71 to 0.79). Combined exposure to lower CETP and PCSK9 concentrations was associated with an additive magnitude with lipids and all outcomes, and we did not observe any nonadditive interactions, most notably for LDL-C (CETP: effect size, -1.11 mg/dL; 95% CI, -1.40 to -0.82; PCSK9: effect size, -2.13 mg/dL; 95% CI, -2.43 to -1.84; combined: effect size, -3.47 mg/dL; 95% CI, -3.76 to -3.18; P = .34 for interaction) and CAD (CETP: OR, 0.96; 95% CI, 0.94 to 1.00; PCSK9: OR, 0.94; 95% CI, 0.91 to 0.97; combined: OR, 0.90; 95% CI, 0.87 to 0.93; P = .83 for interaction). In addition, when corrected for multiple testing, lower CETP concentrations were associated with increased age-related macular degeneration (OR, 1.11; 95% CI, 1.04 to 1.19). Conclusions and Relevance Our results suggest that joint inhibition of CETP and PCSK9 has additive effects on lipid traits and disease risk, including a lower risk of CAD. Further research may explore whether a combination of CETP- and PCSK9-related therapeutics can benefit high-risk patients who are unable to reach treatment targets with existing options.
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Affiliation(s)
- Arjen J. Cupido
- Amsterdam UMC location, University of Amsterdam, Department of Vascular Medicine, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands
- Division of Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Division of Cardiology, Department of Medicine, University of California, Los Angeles
| | - Laurens F. Reeskamp
- Amsterdam UMC location, University of Amsterdam, Department of Vascular Medicine, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands
| | - Aroon D. Hingorani
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, United Kingdom
- Health Data Research UK and Institute of Health Informatics, University College London, London, United Kingdom
- UCL British Heart Foundation Research Accelerator, London, United Kingdom
| | - Chris Finan
- Division of Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, United Kingdom
- Health Data Research UK and Institute of Health Informatics, University College London, London, United Kingdom
- UCL British Heart Foundation Research Accelerator, London, United Kingdom
| | - Folkert W. Asselbergs
- Division of Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, United Kingdom
- Health Data Research UK and Institute of Health Informatics, University College London, London, United Kingdom
| | - G. Kees Hovingh
- Amsterdam UMC location, University of Amsterdam, Department of Vascular Medicine, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands
| | - Amand F. Schmidt
- Division of Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, United Kingdom
- Health Data Research UK and Institute of Health Informatics, University College London, London, United Kingdom
- UCL British Heart Foundation Research Accelerator, London, United Kingdom
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Jia X, Al Rifai M, Saeed A, Ballantyne CM, Virani SS. PCSK9 Inhibitors in the Management of Cardiovascular Risk: A Practical Guidance. Vasc Health Risk Manag 2022; 18:555-566. [PMID: 35898405 PMCID: PMC9309324 DOI: 10.2147/vhrm.s275739] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/13/2022] [Indexed: 01/19/2023] Open
Abstract
Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors are potent medications in the toolkit for treatment of atherosclerotic cardiovascular disease. These agents have been well studied in clinical trials supporting their efficacy in dramatically reducing low-density lipoprotein cholesterol (LDL-C) and impact on cardiovascular outcomes. Since the approval of commercial use for PCSK9 inhibitors in 2015, we have also gained significant experience in the use of these therapeutics in the real-world setting. In this article, we review current guideline recommendations, clinical trial evidence on efficacy and safety as well as data on cost-effectiveness, prescription and adherence. We focus primarily on the monoclonal antibody class of PCSK9 inhibitors in this review while also touching on other types of therapeutics that are under development.
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Affiliation(s)
- Xiaoming Jia
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Mahmoud Al Rifai
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Anum Saeed
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Salim S Virani
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA.,Department of Medicine, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
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Marquina C, Talic S, Zomer E, Vargas-Torres S, Petrova M, Wolfe R, Abushanab D, Lybrand S, Thomson D, Stratton G, Ofori-Asenso R, Liew D, Ademi Z. Attainment of low-density lipoprotein cholesterol goals in patients treated with combination therapy: A retrospective cohort study in primary care. J Clin Lipidol 2022; 16:498-507. [DOI: 10.1016/j.jacl.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 03/01/2022] [Accepted: 05/06/2022] [Indexed: 11/26/2022]
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Tombling BJ, Zhang Y, Huang YH, Craik DJ, Wang CK. The emerging landscape of peptide-based inhibitors of PCSK9. Atherosclerosis 2021; 330:52-60. [PMID: 34246818 DOI: 10.1016/j.atherosclerosis.2021.06.903] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/18/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022]
Abstract
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a clinically validated target for treating cardiovascular disease (CVD) due to its involvement in cholesterol metabolism. Although approved monoclonal antibodies (alirocumab and evolocumab) that inhibit PCSK9 function are very effective in lowering cholesterol, their limitations, including high treatment costs, have so far prohibited widespread use. Accordingly, there is great interest in alternative drug modalities to antibodies. Like antibodies, peptides are valuable therapeutics due to their high target potency and specificity. Furthermore, being smaller than antibodies means they have access to more drug administration options, are less likely to induce adverse immunogenic responses, and are better suited to affordable production. This review surveys the current peptide-based landscape aimed towards PCSK9 inhibition, covering pre-clinical to patented drug candidates and comparing them to current cholesterol lowering therapeutics. Classes of peptides reported to be inhibitors include nature-inspired disulfide-rich peptides, combinatorially derived cyclic peptides, and peptidomimetics. Their functional activities have been validated in biophysical and cellular assays, and in some cases pre-clinical mouse models. Recent efforts report peptides with potent sub-nanomolar binding affinities to PCSK9, which highlights their potential to achieve antibody-like potency. Studies are beginning to address pharmacokinetic properties of PCSK9-targeting peptides in more detail. We conclude by highlighting opportunities to investigate their biological effects in pre-clinical models of cardiovascular disease. The anticipation concerning the PCSK9-targeting peptide landscape is accelerating and it seems likely that a peptide-based therapeutic for treating PCSK9-mediated hypercholesterolemia may be clinically available in the near future.
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Affiliation(s)
- Benjamin J Tombling
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Yuhui Zhang
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Yen-Hua Huang
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - David J Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - Conan K Wang
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, Qld, 4072, Australia.
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19
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In vivo CRISPR base editing of PCSK9 durably lowers cholesterol in primates. Nature 2021; 593:429-434. [PMID: 34012082 DOI: 10.1038/s41586-021-03534-y] [Citation(s) in RCA: 383] [Impact Index Per Article: 127.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 04/11/2021] [Indexed: 12/26/2022]
Abstract
Gene-editing technologies, which include the CRISPR-Cas nucleases1-3 and CRISPR base editors4,5, have the potential to permanently modify disease-causing genes in patients6. The demonstration of durable editing in target organs of nonhuman primates is a key step before in vivo administration of gene editors to patients in clinical trials. Here we demonstrate that CRISPR base editors that are delivered in vivo using lipid nanoparticles can efficiently and precisely modify disease-related genes in living cynomolgus monkeys (Macaca fascicularis). We observed a near-complete knockdown of PCSK9 in the liver after a single infusion of lipid nanoparticles, with concomitant reductions in blood levels of PCSK9 and low-density lipoprotein cholesterol of approximately 90% and about 60%, respectively; all of these changes remained stable for at least 8 months after a single-dose treatment. In addition to supporting a 'once-and-done' approach to the reduction of low-density lipoprotein cholesterol and the treatment of atherosclerotic cardiovascular disease (the leading cause of death worldwide7), our results provide a proof-of-concept for how CRISPR base editors can be productively applied to make precise single-nucleotide changes in therapeutic target genes in the liver, and potentially in other organs.
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Desai NR, Wade RL, Xiang P, Pinto L, Nunna S, Wang X, Exter J, Mues KE, Habib M, Chen CC. Low-density lipoprotein cholesterol lowering in real-world patients treated with evolocumab. Clin Cardiol 2021; 44:715-722. [PMID: 33760276 PMCID: PMC8119857 DOI: 10.1002/clc.23600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 12/11/2022] Open
Abstract
Background Low‐density lipoprotein cholesterol (LDL‐C) is a risk factor for atherosclerotic cardiovascular disease (ASCVD). There are limited real‐world data on LDL‐C lowering with evolocumab in United States clinical practice. Hypothesis We assessed LDL‐C lowering during 1 year of evolocumab therapy. Methods This retrospective cohort study used linked laboratory (Prognos) and medical claims (IQVIA Dx/LRx and PharMetrics Plus®) data. Patients with a first fill for evolocumab between 7/1/2015 and 10/31/2019 (index event) and LDL‐C ≥ 70 mg/dL were included (overall cohort; N = 5897). Additionally, a patient subgroup with a recent myocardial infarction (MI) within 12 months (median 130 days) before the first evolocumab fill was identified (N = 152). Reduction from baseline LDL‐C was calculated based on the lowest LDL‐C value recorded during a 12‐month follow‐up period. Results The mean (SD) age was 65 (10) years; 61.9% of patients had ASCVD diagnoses and 70.7% of patients were in receipt of lipid‐lowering therapy. Following evolocumab treatment, changes in LDL‐C from baseline were −60% in the overall cohort (median [interquartile range (IQR)] 146 [115–180] mg/dL to 58 [36–84] mg/dL) and −65% in the recent MI subgroup (median [IQR] 137 [109–165] mg/dL to 48 [30–78] mg/dL). In the overall cohort and recent MI subgroup, 62.1% and 69.7% of patients achieved LDL‐C < 70 mg/dL, respectively. Conclusions In this real‐world analysis, evolocumab was associated with significant reductions in LDL‐C comparable to that seen in the FOURIER clinical trial, which were durable over 1 year of treatment.
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Affiliation(s)
- Nihar R Desai
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Pin Xiang
- Amgen Inc., Thousand Oaks, California, USA.,Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | | | - Sasikiran Nunna
- IQVIA, Plymouth Meeting, Pennsylvania, USA.,Bristol Myers Squibb, Inc., Lawrenceville, New Jersey, USA
| | - Xin Wang
- IQVIA, Plymouth Meeting, Pennsylvania, USA
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