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Tran E, Nayeni M, Shah N, Malvankar-Mehta MS. The effects of age-related macular degeneration on work productivity: A meta-analysis. Eur J Ophthalmol 2024; 34:641-648. [PMID: 37448315 PMCID: PMC11067424 DOI: 10.1177/11206721231185808] [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: 02/06/2023] [Accepted: 05/23/2023] [Indexed: 07/15/2023]
Abstract
Age-related macular degeneration (AMD) is one of the leading causes of vision loss and blindness in older adults. Given the aging population in developed countries and the increased participation of older adults in the labour market, this paper aims to understand the impact of AMD on workplace productivity. Economic studies, comparative studies, observational studies, cohort studies, case series, randomized control trials, clinical trials, multicenter studies from MEDLINE, EMBASE, and CINHAL, as well as grey literature, were systematically searched to obtain all relevant literature. Duplicate records were removed, and two independent reviewers screened records for relevance. After screening, a risk of bias assessment was carried out. Data were extracted and a meta-analysis was performed using STATA 15.0. Fixed-effect and random-effect models were computed based on heterogeneity. Seven studies consisting of 3,060,864 subjects from 5 different countries were included in this systematic review. Mean wages lost due to impaired work productivity ranged from $1,395 to $55,180. The mean unemployment rate attributed to AMD ranged from 5.50% to 77.00%. Meta-analysis results indicated a significant unemployment rate (SMD = 0.44, CI: [0.27, 0.62]). Patients with AMD experience impaired work productivity as demonstrated by the wages lost and significantly higher rates of unemployment.
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Affiliation(s)
- Edward Tran
- Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Manav Nayeni
- Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Nirmit Shah
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Monali S Malvankar-Mehta
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Department of Ophthalmology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
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Brown GC, Brown MM, Monigle MC. Cost-Utility Analysis of the Port Delivery System with Ranibizumab for Neovascular Age-Related Macular Degeneration. Ophthalmol Retina 2024; 8:431-446. [PMID: 37981235 DOI: 10.1016/j.oret.2023.11.002] [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: 07/14/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
PURPOSE To quantify the cost-utility ratio of the ranibizumab Port Delivery System (PDS; SUSVIMO) versus intravitreal ranibizumab injections for treating neovascular age-related macular degeneration (nAMD) based upon Archway Phase 3 Trial data. DESIGN Cost-utility analysis. SUBJECTS Archway Phase 3 Clinical Trial nAMD participants previously responsive to anti-VEGF therapy were randomized 3:2. Two hundred forty received PDS refills q 24 weeks and 162 received ranibizumab injections. METHODS Ophthalmic patient, time tradeoff utilities, direct medical and societal cost perspectives, 12-year, 1-year, and 5-year timelines, United States 2022 real dollars, and a 3% annual discount rate were employed. Utilities were adjusted for nAMD conversion in fellow eyes during the 12-year, mean participant life expectancy. Premature death associated with severe vision loss was integrated as per the population-based Salisbury Eye Evaluation Study. MAIN OUTCOME MEASURES Quality-adjusted life-year (QALY) accruals, costs, and incremental and average cost-utility ratios in $/QALY (dollars expended per QALY gained). RESULTS Versus no therapy, the 1-year PDS QALY gain was 0.0156 (6.8%) versus 0.0063 (0.82%) for intravitreal injections (P < 0.001), whereas the respective 12-year QALY gains were 1.714 (28%) and 1.639 (26.8%) (P = 0.99). One-year direct PDS ophthalmic costs totaled $21 825 with 2 ranibizumab fills, whereas ranibizumab injection therapy totaled $18 405 with 11.8 injections. The 1-year incremental PDS $/QALY versus injections was cost effective at $75 497/QALY. Five-year PDS therapy was not incrementally cost effective at $304 108/QALY, nor was the 12-year therapy at $761 646/QALY. Average 12-year cost-utility ratios were $78 773/QALY for the PDS and $47 917/QALY for injection therapy. Adding -$476 442 12-year offsetting societal costs netted $314 521 to society per PDS participant versus $370 958 per participant for injection therapy. CONCLUSIONS Ranibizumab PDS therapy was not incrementally cost effective versus ranibizumab injection therapy at 12 or 5 years but was at 1 year. Injection therapy had a more favorable 12-year average cost-utility ratio. Vision gain was the major determinant of participant value gain and was the same for both interventions. Both interventions were highly cost effective utilizing average cost-utility analysis with the societal cost perspective. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Gary C Brown
- Department of Pharmacoeconomics, Center for Value-Based Medicine, Hilton Head, South Carolina; Wills Eye Hospital, Philadelphia, Pennsylvania; Sidney Kimmel School of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania; Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia.
| | - Melissa M Brown
- Department of Pharmacoeconomics, Center for Value-Based Medicine, Hilton Head, South Carolina; Wills Eye Hospital, Philadelphia, Pennsylvania; Sidney Kimmel School of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania; Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Meg C Monigle
- Beverly Hospital, Beth Israel Lahey Health, Beverly, Massachusetts
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Gil-Rojas Y, Amaya-Granados D, Quiñones J, Robles A, Samacá-Samacá D, Hernández F. Measuring the economic burden of neuromyelitis optica spectrum disorder in Colombia. Mult Scler Relat Disord 2024; 82:105376. [PMID: 38141561 DOI: 10.1016/j.msard.2023.105376] [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: 02/07/2023] [Revised: 08/15/2023] [Accepted: 12/10/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVE To assess the economic burden of neuromyelitis optica spectrum disorder (NMOSD) in the Colombian context. METHODS Analyses were conducted from a societal perspective using the prevalence-based approach. Costs were expressed in 2022 US dollars (1 USD = $3,914.46 COP). Direct medical costs were assessed from a bottom-up approach. Indirect costs included loss of productivity of the patient and their caregivers. The economic burden of NMOSD in Colombia was estimated as the sum of direct and indirect costs. RESULTS The direct cost of treating a patient with NMOSD was USD$ 8,149.74 per year. When projecting costs nationwide, NMOSD would cost USD$ 7.2 million per year. Of these costs, 53.5% would be attributed to relapses and 34.4% to pharmacological therapy. Indirect costs potentially attributed to NMOSD in Colombia were estimated at USD$ 1.5 million per year per cohort. Of these, 78% are attributable to loss of patient productivity, mainly due to reduced access to the labor market and premature mortality. CONCLUSIONS The NMOSD has a representative economic burden at the patient level, with direct costs, particularly related to relapses and medicines, being the main component of total costs. These findings are useful evidence that requires attention from public policymakers in Colombia.
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Affiliation(s)
| | | | - Jairo Quiñones
- Director Unidad de Neuroinmunología, Fundación Valle del Lili, Cali, Colombia; Coordinador de la Especialización en Neurología, Universidad de Icesi, Cali, Colombia
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Choi K, Park SJ, Han S, Mun Y, Lee DY, Chang DJ, Kim S, Yoo S, Woo SJ, Park KH, Suh HS. Patient-Centered Economic Burden of Exudative Age-Related Macular Degeneration: Retrospective Cohort Study. JMIR Public Health Surveill 2023; 9:e49852. [PMID: 38064251 PMCID: PMC10746973 DOI: 10.2196/49852] [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: 06/12/2023] [Revised: 09/01/2023] [Accepted: 10/12/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Exudative age-related macular degeneration (AMD), one of the leading causes of blindness, requires expensive drugs such as anti-vascular endothelial growth factor (VEGF) agents. The long-term regular use of effective but expensive drugs causes an economic burden for patients with exudative AMD. However, there are no studies on the long-term patient-centered economic burden of exudative AMD after reimbursement of anti-VEGFs. OBJECTIVE This study aimed to evaluate the patient-centered economic burden of exudative AMD for 2 years, including nonreimbursement and out-of-pocket costs, compared with nonexudative AMD using the Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM). METHODS This retrospective cohort study was conducted using the OMOP CDM, which included 2,006,478 patients who visited Seoul National University Bundang Hospital from June 2003 to July 2019. We defined the exudative AMD group as patients aged >50 years with a diagnosis of exudative AMD and a prescription for anti-VEGFs or verteporfin. The control group was defined as patients aged >50 years without a diagnosis of exudative AMD or a prescription for anti-VEGFs or verteporfin. To adjust for selection bias, controls were matched by propensity scores using regularized logistic regression with a Laplace prior. We measured any medical cost occurring in the hospital as the economic burden of exudative AMD during a 2-year follow-up period using 4 categories: total medical cost, reimbursement cost, nonreimbursement cost, and out-of-pocket cost. To estimate the average cost by adjusting the confounding variable and overcoming the positive skewness of costs, we used an exponential conditional model with a generalized linear model. RESULTS We identified 931 patients with exudative AMD and matched 783 (84.1%) with 2918 patients with nonexudative AMD. In the exponential conditional model, the total medical, reimbursement, nonreimbursement, and out-of-pocket incremental costs were estimated at US $3426, US $3130, US $366, and US $561, respectively, in the first year and US $1829, US $1461, US $373, and US $507, respectively, in the second year. All incremental costs in the exudative AMD group were 1.89 to 4.25 and 3.50 to 5.09 times higher in the first and second year, respectively, than those in the control group (P<.001 in all cases). CONCLUSIONS Exudative AMD had a significantly greater economic impact (P<.001) for 2 years on reimbursement, nonreimbursement, and out-of-pocket costs than nonexudative AMD after adjusting for baseline demographic and clinical characteristics using the OMOP CDM. Although economic policies could relieve the economic burden of patients with exudative AMD over time, the out-of-pocket cost of exudative AMD was still higher than that of nonexudative AMD for 2 years. Our findings support the need for expanding reimbursement strategies for patients with exudative AMD given the significant economic burden faced by patients with incurable and fatal diseases both in South Korea and worldwide.
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Affiliation(s)
- Kyungseon Choi
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea
- Institute of Regulatory Innovation Through Science, Kyung Hee University, Seoul, Republic of Korea
| | - Sang Jun Park
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sola Han
- Health Outcomes Division, College of Pharmacy, University of Texas at Austin, Austin, TX, United States
| | - Yongseok Mun
- Department of Ophthalmology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Da Yun Lee
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Dong-Jin Chang
- Department of Ophthalmology and Visual Science, Yeouido St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok Kim
- Healthcare ICT Research Center, Office of eHealth Research and Businesses, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sooyoung Yoo
- Healthcare ICT Research Center, Office of eHealth Research and Businesses, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Se Joon Woo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Kyu Hyung Park
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hae Sun Suh
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea
- Institute of Regulatory Innovation Through Science, Kyung Hee University, Seoul, Republic of Korea
- College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
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Gomez-Lumbreras A, Ghule P, Panchal R, Giannouchos T, Lockhart CM, Brixner D. Real-world evidence in the use of Bevacizumab in age-related macular degeneration (ArMD): a scoping review. Int Ophthalmol 2023; 43:4527-4539. [PMID: 37606820 DOI: 10.1007/s10792-023-02853-5] [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: 12/23/2022] [Accepted: 08/05/2023] [Indexed: 08/23/2023]
Abstract
PURPOSE Pharmacological treatments for age-related macular degeneration (ArMD) include anti-vascular endothelial growth factor therapies. Bevacizumab is used off-label, as it has no indication for ArMD. This study aims to identify and describe literature on real-world evidence of bevacizumab (originator or biosimilars) use in ArMD. METHODS A scoping review was conducted in Medline, CINAHL and Embase databases. Studies published in English after September 2017, conducted in USA, including adults (≥ 18 years old) with ArMD who received treatment with bevacizumab for ArMD were included. The review was further limited to peer-reviewed observational studies that quantitatively analyze either clinical or patient-reported outcomes among patients treated with bevacizumab for ArMD. RESULTS The search strategy retrieved 543 studies. After title and abstract screening, a total of 142 studies were selected for full-text review leading to a total of 12 studies qualifying for data charting. All were retrospective studies. Five (41.6%) of the studies had less than 500 eyes included in the analysis, and the rest had over a thousand eyes. All except one study reported clinical outcomes (visual acuity was the main outcome in 8 (66.6%) studies). There were 3 (25%) studies reporting adverse events of bevacizumab intravitreal injections. None of the studies specified using biosimilars for bevacizumab and none mentioned patient-reported outcomes. CONCLUSION The lack of studies aiming to study the patient-reported outcomes as well as the use of biosimilars of bevacizumab in ArMD makes this field a potential for future research. The different exposures and times to follow-up make it difficult to compare results among the selected studies.
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Affiliation(s)
- Ainhoa Gomez-Lumbreras
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, 30S 2000E, Salt Lake City, UT, 84112, USA.
| | - Priyanka Ghule
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, 30S 2000E, Salt Lake City, UT, 84112, USA
| | - Rupesh Panchal
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, 30S 2000E, Salt Lake City, UT, 84112, USA
- University of Utah Health Plans, Murray, UT, USA
- ZS, 2535 West Hillcrest Drive Suite 100, Thousand Oaks, CA, 91320, USA
| | - Theodoros Giannouchos
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, 30S 2000E, Salt Lake City, UT, 84112, USA
- Department of Health Policy and Organization, School of Public Health, The University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Catherine M Lockhart
- Biologics and Biosimilars Collective Intelligence Consortium, Alexandria, VA, USA
| | - Diana Brixner
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, 30S 2000E, Salt Lake City, UT, 84112, USA
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Brown GC, Brown MM, Gierhart D, Olk RJ. Prevention Surpasses Treatment: 5-year Follow-Up, Cost-Utility, and Cost-Benefit of Zeaxanthin Therapy for Neovascular Age-Related Macular Degeneration. Ophthalmol Ther 2023; 12:2583-2608. [PMID: 37430077 PMCID: PMC10441916 DOI: 10.1007/s40123-023-00742-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/22/2023] [Indexed: 07/12/2023] Open
Abstract
INTRODUCTION Oral administration of zeaxanthin (Zx) 20 mg daily in patients with unilateral neovascular age-related macular degeneration (nAMD) treated with triple therapy (photodynamic therapy/intravitreal bevacizumab/intravitreal dexamethasone) reduced fellow-eye 2-year nAMD incidence from 23 to 6% (p = 0.02) in a prior clinical trial. We questioned the long-term benefit and thus analyzed case-control 5-year patient data of trial participants and additional participants with 5-year follow-up, also performing cost-utility and cost-benefit analyses. METHODS Consecutive, unilateral nAMD patient outcomes for those taking 20 mg Zx supplementation orally for ≥ 5 years were compared with the Comparison of AMD Treatments Trials (CATT) 5-year historical controls for fellow-eye nAMD conversion. Eleven-year mean life expectancy, cost-utility and cost-benefit models were undertaken employing a 3% discount rate and 2020 US real dollars. RESULTS Among 227 consecutive patients with nAMD/Zx-supplementation, 202 (90%) had 5-year follow-up. The fellow-eye nAMD 5-year conversion incidence using a Kaplan-Meier cumulative event estimate was 22% (49/227), versus 48% (167/348) with CATT control data (p < 0.0001). An 11-year cost-utility model with estimates for years 6-11 demonstrated a 0.42 (7.7%) QALY (quality-adjusted life-year) gain, including 3 months of life saved per patient due to decreased nAMD fellow-eye conversion. This yielded a direct ophthalmic medical cost perspective, incremental cost-utility ratio (CUR) of -$576/QALY and a societal cost perspective CUR of -$125,071/QALY. Zx supplementation for all 2020 US unilateral nAMD cases would have theoretically saved society, primarily patients, $6.0 billion over 11 years, a 1531% return on investment (ROI), or 31.3% annual ROI, on Zx costs. CONCLUSIONS Oral zeaxanthin supplementation for unilateral nAMD patients appears to decrease fellow-eye long-term incidence and is cost-effective and financially rewarding. It is dominant vs. no supplementation in patients presenting with unilateral nAMD. TRIAL REGISTRATION ClinicalTrials.gov identifier, NCT01527435.
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Affiliation(s)
- Gary C. Brown
- The Center for Value-Based Medicine®, Box 3417, Hilton Head, SC 29928 USA
- Wills Eye Hospital, Thomas Jefferson Medical University, Philadelphia, PA USA
- The Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA USA
| | - Melissa M. Brown
- The Center for Value-Based Medicine®, Box 3417, Hilton Head, SC 29928 USA
- Wills Eye Hospital, Thomas Jefferson Medical University, Philadelphia, PA USA
- The Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA USA
| | - Dennis Gierhart
- ZeaVision LLC, 716 Crown Industrial Ct, Chesterfield, MO 63005 USA
| | - R. Joseph Olk
- The Retina Center of St. Louis, Creve Coeur, 11710 Old Ballas Road, Suite 102, St. Louis, MO 63141 USA
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Draelos M, Ortiz P, Narawane A, McNabb RP, Kuo AN, Izatt JA. Robotic Optical Coherence Tomography of Human Subjects with Posture-Invariant Head and Eye Alignment in Six Degrees of Freedom. ... INTERNATIONAL SYMPOSIUM ON MEDICAL ROBOTICS. INTERNATIONAL SYMPOSIUM ON MEDICAL ROBOTICS 2023; 2023:10.1109/ismr57123.2023.10130250. [PMID: 39092148 PMCID: PMC11293772 DOI: 10.1109/ismr57123.2023.10130250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Ophthalmic optical coherence tomography (OCT) has achieved remarkable clinical success but remains sequestered in ophthalmology specialty offices. Recently introduced robotic OCT systems seek to expand patient access but fall short of their full potential due to significant imaging workspace and motion planning restrictions. Here, we present a next-generation robotic OCT system capable of imaging in any head orientation or posture that is mechanically reachable. This system overcomes prior restrictions by eliminating fixed-base tracking components, extending robot reach, and planning alignment in six degrees of freedom. With this robotic system, we show repeatable subject imaging independent of posture (standing, seated, reclined, and supine) under widely varying head orientations for multiple human subjects. For each subject, we obtained a consistent view of the retina, including the fovea, retinal vasculature, and edge of the optic nerve head. We believe this robotic approach can extend OCT as an eye disease screening, diagnosis, and monitoring tool to previously unreached patient populations.
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Affiliation(s)
- Mark Draelos
- Departments of Robotics and Ophthalmology, University of Michigan, 2505 Hayward St, Ann Arbor, MI USA
| | - Pablo Ortiz
- Department of Biomedical Engineering, Duke University, 101 Science Dr, Durham, NC USA
| | - Amit Narawane
- Department of Biomedical Engineering, Duke University, 101 Science Dr, Durham, NC USA
| | - Ryan P McNabb
- Department of Ophthalmology, Duke University Medical Center, 2351 Erwin Rd, Durham, NC USA
| | - Anthony N Kuo
- Department of Ophthalmology, Duke University Medical Center, 2351 Erwin Rd, Durham, NC USA
- Department of Biomedical Engineering, Duke University, 101 Science Dr, Durham, NC USA
| | - Joseph A Izatt
- Department of Biomedical Engineering, Duke University, 101 Science Dr, Durham, NC USA
- Department of Ophthalmology, Duke University Medical Center, 2351 Erwin Rd, Durham, NC USA
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Haji H, Gianniou C, Brynskov T, Sørensen TL, Olsen R, Krogh Nielsen M. Association between structural and functional treatment outcomes in neovascular age-related macular degeneration. Acta Ophthalmol 2023; 101:177-184. [PMID: 36036674 DOI: 10.1111/aos.15233] [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: 11/22/2021] [Revised: 05/24/2022] [Accepted: 08/14/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The administration frequency of intravitreal anti-vascular endothelial growth factor (anti-VEGF) in neovascular age-related macular degeneration (AMD) have been widely discussed. The primary objective of the study was to explore the association between anatomical outcomes and changes in functional outcome. METHODS This was a retrospective cohort study of patients with newly diagnosed neovascular AMD with a minimum of 12 months of follow-up. Only one eye per patient was included. Patients were treated according to the observe-and-plan or the pro-re-nata regimen. All patients were regularly examined from the time of diagnosis up to 24 months. The effect of intraretinal fluid (IRF), subretinal fluid (SRF) and pigment epithelium detachment (PED) at any time point on visual acuity (VA) was tested, as well as the long-term effect and the risk of losing VA. Further, the variability of central retinal thickness (CRT) was calculated for each eyes' individual measures during the observation period, excluding the monthly loading phase. The prognostic effect of each factor on VA was estimated by regression analysis. The primary outcome measure was VA, which was correlated with the presence or absence of fluid, seen as IRF, SRF or PED. RESULTS A total of 504 treatment naïve eyes from 504 patients was included. The presence of IRF was associated with lower VA at all visits (p < 0.001). However, the presence of SRF or PED was not significantly associated with worse VA at any time point during the observation period. Patients in the upper quartile of CRT variance had a greater loss in VA after 12 and 24 months (p < 0.001). CONCLUSIONS In this retrospective cohort study, the presence of intraretinal fluid was associated with poorer visual outcome in neovascular AMD patients treated with anti-VEGF, but the presence of subretinal fluid and PEDs was not. This suggests that IRF is worse than subretinal fluid and PEDs for AMD outcomes and therefore requires the most intensive treatment. Further, we found that patients with the highest CRT variability during the study period had poorer visual outcomes after 12 and 24 months, indicating that stringent control of retinal fluid volume fluctuations is important to prevent visual acuity decline over time.
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Affiliation(s)
- Hauraz Haji
- Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark
| | - Christina Gianniou
- Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Troels Brynskov
- Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark
| | - Torben L Sørensen
- Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Callanan D, Khurana RN, Maturi RK, Patel S, Wykoff CC, Eichenbaum D, Khanani AM, Hassan T, Badger H, Mehta S, Le G, Attar M, Seal J, Li XY. Impact of Modifying Abicipar Manufacturing Process in Patients with Neovascular Age-Related Macular Degeneration: MAPLE Study Results. Clin Ophthalmol 2023; 17:1367-1384. [PMID: 37197577 PMCID: PMC10184835 DOI: 10.2147/opth.s405994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/06/2023] [Indexed: 05/19/2023] Open
Abstract
Purpose To evaluate the impact of modifying the abicipar pegol (abicipar) manufacturing process on the safety and treatment effect of abicipar in patients with neovascular age-related macular degeneration (nAMD). Methods A new process for manufacturing abicipar was developed to reduce host cell impurities. In a prospective, Phase 2, multicenter, open-label, 28-week clinical trial, patients (n=123) with active nAMD received intravitreal injections of abicipar 2 mg at baseline (day 1) and weeks 4, 8, 16, and 24. Outcome measures included proportion of patients with stable vision (<15-letter loss from baseline; primary endpoint), change from baseline in best-corrected visual acuity (BCVA) and central retinal thickness (CRT), and adverse events. Results Overall, 8.9% (11/123) of patients experienced intraocular inflammation (IOI) and discontinued treatment. IOI cases were assessed as mild (2.4% [3/123]), moderate (4.9% [6/123]), or severe (1.6% [2/123]) and resolved with steroid treatment. Visual acuity in most patients with IOI (8 of 11) recovered to baseline BCVA or better by study end. No cases of endophthalmitis or retinal vasculitis were reported. Stable vision was maintained for ≥95.9% (≥118/123) of patients at all study visits. At week 28, treatment-naïve patients showed a greater mean improvement from baseline in BCVA compared with previously treated patients (4.4 vs 1.8 letters) and a larger mean CRT reduction from baseline (98.5 vs 45.5 μm). Conclusion Abicipar produced using a modified manufacturing process showed a moderately lower incidence and severity of IOI compared with Phase 3 abicipar studies. Beneficial effects of treatment were demonstrated.
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Affiliation(s)
- David Callanan
- Texas Retina Associates, Arlington, TX, USA
- Correspondence: David Callanan, Texas Retina Associates, 801 West Randol Mill Road, Suite 101, Arlington, TX, USA, 76012, Tel +1 817-261-9625, Fax +1 817-261-9586, Email
| | - Rahul N Khurana
- Northern California Retina Vitreous Associates, Mountain View, CA, USA
| | - Raj K Maturi
- Midwest Eye Institute, Indianapolis, IN, USA
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - Charles C Wykoff
- Retina Consultants of Houston, Retina Consultants of America, Blanton Eye Institute, Houston Methodist Hospital, Houston, TX, USA
| | - David Eichenbaum
- Retina Vitreous Associates of Florida, St. Petersburg, FL, USA
- Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Arshad M Khanani
- Sierra Eye Associates, Reno, NV, USA
- University of Nevada, Reno School of Medicine, Reno, NV, USA
| | - Tarek Hassan
- Associated Retinal Consultants, Royal Oak, MI, USA
| | - Hanh Badger
- Allergan plc, Irvine, CA, USA, at the time of this work
| | | | - Grace Le
- Allergan plc, Irvine, CA, USA, at the time of this work
| | | | | | - Xiao-Yan Li
- Allergan plc, Irvine, CA, USA, at the time of this work
- VivaVision Biotech, Inc, Shanghai, People’s Republic of China
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Karasavvidou EM, Tranos P, Panos GD. Brolucizumab for the Treatment of Degenerative Macular Conditions: A Review of Clinical Studies. Drug Des Devel Ther 2022; 16:2659-2680. [PMID: 35971530 PMCID: PMC9375562 DOI: 10.2147/dddt.s378450] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/04/2022] [Indexed: 12/13/2022] Open
Abstract
Age-related macular degeneration (AMD), diabetic retinopathy and retinal vein occlusion represent some of the commonest degenerative conditions that lead to severe vision impairment in the developed countries. The gold standard treatment of complications associated with these conditions is the intravitreal administration of anti-vascular endothelial growth factor (VEGF) agents. Brolucizumab is a newly developed, humanised, single-chain fragment of a monoclonal antibody binding all VEGF-A isoforms, which was recently approved for the treatment of neovascular AMD. Intravitreal brolucizumab promises to reduce treatment burden for nAMD patients by achieving comparable therapeutic outcomes with fewer clinic visits. Promising also appears its use for the treatment of more challenging maculopathies like diabetic macular oedema (DMO). The aim of this review is to describe the special pharmacological properties of brolucizumab and display the outcomes of the most important clinical trials and real-world studies regarding its efficacy and safety for the management of degenerative macular disorders.
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Affiliation(s)
| | | | - Georgios D Panos
- Department of Ophthalmology, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
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11
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Marques AP, Ramke J, Cairns J, Butt T, Zhang JH, Jones I, Jovic M, Nandakumar A, Faal H, Taylor H, Bastawrous A, Braithwaite T, Resnikoff S, Khaw PT, Bourne R, Gordon I, Frick K, Burton MJ. The economics of vision impairment and its leading causes: A systematic review. EClinicalMedicine 2022; 46:101354. [PMID: 35340626 PMCID: PMC8943414 DOI: 10.1016/j.eclinm.2022.101354] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 01/16/2023] Open
Abstract
Vision impairment (VI) can have wide ranging economic impact on individuals, households, and health systems. The aim of this systematic review was to describe and summarise the costs associated with VI and its major causes. We searched MEDLINE (16 November 2019), National Health Service Economic Evaluation Database, the Database of Abstracts of Reviews of Effects and the Health Technology Assessment database (12 December 2019) for partial or full economic evaluation studies, published between 1 January 2000 and the search dates, reporting cost data for participants with VI due to an unspecified cause or one of the seven leading causes globally: cataract, uncorrected refractive error, diabetic retinopathy, glaucoma, age-related macular degeneration, corneal opacity, trachoma. The search was repeated on 20 January 2022 to identify studies published since our initial search. Included studies were quality appraised using the British Medical Journal Checklist for economic submissions adapted for cost of illness studies. Results were synthesized in a structured narrative. Of the 138 included studies, 38 reported cost estimates for VI due to an unspecified cause and 100 reported costs for one of the leading causes. These 138 studies provided 155 regional cost estimates. Fourteen studies reported global data; 103/155 (66%) regional estimates were from high-income countries. Costs were most commonly reported using a societal (n = 48) or healthcare system perspective (n = 25). Most studies included only a limited number of cost components. Large variations in methodology and reporting across studies meant cost estimates varied considerably. The average quality assessment score was 78% (range 35-100%); the most common weaknesses were the lack of sensitivity analysis and insufficient disaggregation of costs. There was substantial variation across studies in average treatment costs per patient for most conditions, including refractive error correction (range $12-$201 ppp), cataract surgery (range $54-$3654 ppp), glaucoma (range $351-$1354 ppp) and AMD (range $2209-$7524 ppp). Future cost estimates of the economic burden of VI and its major causes will be improved by the development and adoption of a reference case for eye health. This could then be used in regular studies, particularly in countries with data gaps, including low- and middle-income countries in Asia, Eastern Europe, Oceania, Latin America and sub-Saharan Africa.
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Key Words
- AMD, Age- related macular degeneration
- DALYs, Disability Adjusted Life Years
- DR, Diabetic Retinopathy
- EU, European
- GBD, Global Burden of Disease
- Health economics
- ICD 11, International Statistical Classification of Diseases, Injuries and Causes of Death 11th revision
- LMICs, Low Middle Income Countries
- MSVI, Moderate and Severe Vision Impairment
- NR, Not reported
- Ophthalmology
- PPP, Purchasing power parity
- Public health
- QALYs, Quality Adjusted Life Years
- RE, Refractive Error
- Systematic review
- USD, United States Dollars ($)
- VI, Vision Impairment
- WHO, World Health Organization
- anti-VEGF, antivascular endothelial growth factor
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Affiliation(s)
- Ana Patricia Marques
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
| | - Jacqueline Ramke
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
- School of Optometry and Vision Science, University of Auckland, Auckland, New Zealand
| | - John Cairns
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
| | - Thomas Butt
- University College London, London, United Kingdom
| | - Justine H. Zhang
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
- Royal Free Hospital, London, United Kingdom
| | - Iain Jones
- Sightsavers, Haywards Heath, United Kingdom
| | | | - Allyala Nandakumar
- Heller School for Social Policy and Management, Brandeis University, Waltham, MA, United States
| | - Hannah Faal
- Department of Ophthalmology, University of Calabar, Calabar, Nigeria
- Africa Vision Research Institute, Durban, Kwa-Zulu Natal, South Africa
| | - Hugh Taylor
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Andrew Bastawrous
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
| | - Tasanee Braithwaite
- The Medical Eye Unit, Guy's and St Thomas' Hospital, London, United Kingdom
- School of Immunology and Microbiology and School of Life Course Sciences, Kings College, London, United Kingdom
| | - Serge Resnikoff
- Brien Holden Vision Institute and SOVS, University of New South Wales, Sydney, NSW, Australia
| | - Peng T. Khaw
- National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom
| | - Rupert Bourne
- Vision and Eye Research Institute, School of Medicine, Anglia Ruskin University, Cambridge, United Kingdom
| | - Iris Gordon
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
| | - Kevin Frick
- Johns Hopkins Carey Business School, Baltimore, MD, United States
| | - Matthew J. Burton
- National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom
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12
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Morrison SL, Dukhovny D, Chan RP, Chiang MF, Campbell JP. Cost-effectiveness of Artificial Intelligence-Based Retinopathy of Prematurity Screening. JAMA Ophthalmol 2022; 140:401-409. [PMID: 35297945 PMCID: PMC8931675 DOI: 10.1001/jamaophthalmol.2022.0223] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/20/2022] [Indexed: 11/14/2022]
Abstract
Importance Artificial intelligence (AI)-based retinopathy of prematurity (ROP) screening may improve ROP care, but its cost-effectiveness is unknown. Objective To evaluate the relative cost-effectiveness of autonomous and assistive AI-based ROP screening compared with telemedicine and ophthalmoscopic screening over a range of estimated probabilities, costs, and outcomes. Design, Setting, and Participants A cost-effectiveness analysis of AI ROP screening compared with ophthalmoscopy and telemedicine via economic modeling was conducted. Decision trees created and analyzed modeled outcomes and costs of 4 possible ROP screening strategies: ophthalmoscopy, telemedicine, assistive AI with telemedicine review, and autonomous AI with only positive screen results reviewed. A theoretical cohort of infants requiring ROP screening in the United States each year was analyzed. Main Outcomes and Measures Screening and treatment costs were based on Current Procedural Terminology codes and included estimated opportunity costs for physicians. Outcomes were based on the Early Treatment of ROP study, defined as timely treatment, late treatment, or correctly untreated. Incremental cost-effectiveness ratios were calculated at a willingness-to-pay threshold of $100 000. One-way and probabilistic sensitivity analyses were performed comparing AI strategies to telemedicine and ophthalmoscopy to evaluate the cost-effectiveness across a range of assumptions. In a secondary analysis, the modeling was repeated and assumed a higher sensitivity for detection of severe ROP using AI compared with ophthalmoscopy. Results This theoretical cohort included 52 000 infants born 30 weeks' gestation or earlier or weighed 1500 g or less at birth. Autonomous AI was as effective and less costly than any other screening strategy. AI-based ROP screening was cost-effective up to $7 for assistive and $34 for autonomous screening compared with telemedicine and $64 and $91 compared with ophthalmoscopy in the primary analysis. In the probabilistic sensitivity analysis, autonomous AI screening was more than 60% likely to be cost-effective at all willingness-to-pay levels vs other modalities. In a second simulated cohort with 99% sensitivity for AI, the number of late treatments for ROP decreased from 265 when ROP screening was performed with ophthalmoscopy to 40 using autonomous AI. Conclusions and Relevance AI-based screening for ROP may be more cost-effective than telemedicine and ophthalmoscopy, depending on the added cost of AI and the relative performance of AI vs human examiners detecting severe ROP. As AI-based screening for ROP is commercialized, care must be given to appropriately price the technology to ensure its benefits are fully realized.
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Affiliation(s)
- Steven L. Morrison
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland
| | - Dmitry Dukhovny
- Department of Pediatrics, Oregon Health & Science University, Portland
| | - R.V. Paul Chan
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago
| | - Michael F. Chiang
- National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - J. Peter Campbell
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland
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13
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Jayasundera KT, Abuzaitoun RO, Lacy GD, Abalem MF, Saltzman GM, Ciulla TA, Johnson MW. Challenges of Cost-Effectiveness Analyses of Novel Therapeutics for Inherited Retinal Diseases. Am J Ophthalmol 2022; 235:90-97. [PMID: 34433085 PMCID: PMC8861129 DOI: 10.1016/j.ajo.2021.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 07/27/2021] [Accepted: 08/16/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE To investigate the challenges and potential improvement strategies of cost-effectiveness analyses performed for therapeutics targeting inherited retinal diseases (IRDs). DESIGN Perspective. METHODS A literature review was conducted with discussion of current limitations and improvement recommendations. RESULTS Cost-effectiveness analysis (CEA) performed for IRD therapeutics has multiple limitations. First, the available methods used to measure health-related quality of life and health utilities can be inaccurate when used in IRDs. Second, the financial burden to patients and society from vision impairment associated with IRDs has been inadequately studied and includes a variety of expenditures ranging from direct costs of IRD specialty health care to indirect expenses associated with daily living activities. Third, our collective understanding is limited in the areas of IRD natural history and health benefits gained from new IRD treatments (eg, gene therapies). In addition, the therapeutic effect from a patient perspective and its duration of action are not fully understood. Due to the scarcity of data, CEA for newly approved therapies has relied on assumptions and creations of predictive models for both costs and health benefits for these new therapeutics in order to calculate the incremental cost-effectiveness ratio. CONCLUSIONS CEA studies performed for IRD therapeutics have been limited by the established health utilities in ophthalmology and the lack of disease-specific information. The assumptions and extrapolations in these studies create substantial uncertainty in incremental cost-effectiveness ratio results. An improved framework is required for CEA of IRD therapeutics in order to determine the cost-effectiveness of each therapy brought from clinical trials to clinical practice.
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Affiliation(s)
- K Thiran Jayasundera
- From the Kellogg Eye Center, Department of Ophthalmology and Visual Sciences (K.T.J., R.O.A.,G.D.L., M.F.A., M.W.J.)
| | - Rebhi O Abuzaitoun
- From the Kellogg Eye Center, Department of Ophthalmology and Visual Sciences (K.T.J., R.O.A.,G.D.L., M.F.A., M.W.J.)
| | - Gabrielle D Lacy
- From the Kellogg Eye Center, Department of Ophthalmology and Visual Sciences (K.T.J., R.O.A.,G.D.L., M.F.A., M.W.J.)
| | - Maria Fernanda Abalem
- From the Kellogg Eye Center, Department of Ophthalmology and Visual Sciences (K.T.J., R.O.A.,G.D.L., M.F.A., M.W.J.); University of Michigan Medical School, Ann Arbor, Michigan, USA; Department of Ophthalmology and Otolaryngology (M.F.A.)
| | - Gregory M Saltzman
- University of São Paulo Medical School, São Paulo, São Paulo, Brazil; Department of Economics and Management (G.M.S.); Albion College, Albion, Michigan, USA; Department of Health Management and Policy (G.M.S.)
| | - Thomas A Ciulla
- University of Michigan, Ann Arbor, Michigan, USA; Department of Ophthalmology (T.A.C.); Eugene and Marilyn Glick Eye Institute, Indiana University, Indianapolis, Indiana, USA; Clearside Biomedical, Inc (T.A.C.); Alpharetta, Georgia, USA; Retina Service, Midwest Eye Institute (T.A.C.), Carmel, Indiana, USA
| | - Mark W Johnson
- From the Kellogg Eye Center, Department of Ophthalmology and Visual Sciences (K.T.J., R.O.A.,G.D.L., M.F.A., M.W.J.).
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14
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Brown GC, Brown MM. Value-based Medicine and Gene Therapy. Int Ophthalmol Clin 2021; 61:195-215. [PMID: 34196324 DOI: 10.1097/iio.0000000000000370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Abstract
Similar to other organs, the retina relies on tightly regulated perfusion and oxygenation. Previous studies have demonstrated that retinal blood flow is affected in a variety of eye and systemic diseases, including diabetic retinopathy, age-related macular degeneration, and glaucoma. Although measurement of peripheral oxygen saturation has become a standard clinical measurement through the development of pulse oximetry, developing a noninvasive technique to measure retinal oxygen saturation has proven challenging, and retinal oximetry technology currently remains inadequate for reliable clinical use. Here, we review current strategies and approaches, as well as several newer technologies in development, and discuss the future of retinal oximetry.
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Affiliation(s)
- Anupam K Garg
- Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA.,School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Darren Knight
- Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA
| | - Leonardo Lando
- Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA
| | - Daniel L Chao
- Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA.,School of Medicine, University of California San Diego, La Jolla, CA, USA.,Janssen Research and Development, Raritan, NJ, USA
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16
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Yu JS, Carlton R, Agashivala N, Hassan T, Wykoff CC. Brolucizumab vs aflibercept and ranibizumab for neovascular age-related macular degeneration: a cost-effectiveness analysis. J Manag Care Spec Pharm 2021; 27:743-752. [PMID: 34057392 PMCID: PMC10390922 DOI: 10.18553/jmcp.2021.27.6.743] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND: Age-related macular degeneration (AMD) is a leading cause of blindness worldwide and is the most common cause of blindness in developed countries. Despite antivascular endothelial growth factor (anti-VEGF) therapy demonstrating improvements in visual and anatomical outcomes, unmet needs remain. Brolucizumab-dbll (ie, brolucizumab), a VEGF inhibitor for treatment of neovascular (wet) AMD and recently approved by the FDA for its treatment of wet AMD, attempts to mitigate treatment burden through less frequent injections. OBJECTIVE: To assess the incremental cost-effectiveness of brolucizumab compared with aflibercept and ranibizumab, given similar costs per injection and the potential for longer dosing intervals based on phase 3 clinical trial data. METHODS: A Markov model was developed to model the treatment of wet AMD patients with brolucizumab vs aflibercept and vs ranibizumab over a lifetime time horizon (base case) and 5-year time horizon (scenario analysis). The Markov model consisted of 3 primary health states: on treatment, off treatment, and death. Markov substates (5 total) described visual acuity (VA) ranging from no vision impairment to blindness. These VA-based substates were defined by best-corrected visual acuity (BCVA) values measured using Early Treatment Diabetic Retinopathy Study letters. Fixed-dosing regimens for each therapy were included in the model: dosing every 4 weeks (q4w) for the first 3 months followed by dosing q8w/q12w for brolucizumab, dosing q4w for the first 3 months followed by dosing q8w for aflibercept, and q4w for ranibizumab. RESULTS: In the base case, brolucizumab was less costly than aflibercept ($63,614 vs $72,189), and brolucizumab generated 0.0079 more quality-adjusted life-years (QALYs) than aflibercept (4.580 vs 4.572). Lower total costs with brolucizumab were driven by reduced drug costs ($56,432 vs $64,057), reduced administration costs ($6,013 vs $6,825), and reduced monitoring costs ($1,168 vs $1,306). When evaluating the cost-effectiveness of brolucizumab over a 5-year time horizon, brolucizumab was less costly than aflibercept ($44,644 vs $50,772) and generated an additional 0.0049 QALYs (2.953 vs 2.948). Additionally, brolucizumab was less costly than ranibizumab ($63,614 vs $128,163) and generated 0.0078 more QALYs than ranibizumab (4.580 vs 4.572) in the base case. Lower total costs with brolucizumab were driven by reduced drug costs ($56,432 vs $114,516), reduced administration costs ($6,013 vs $11,541), and reduced monitoring costs ($1,168 vs $2,107). When evaluating the cost-effectiveness of brolucizumab over a 5-year time horizon, brolucizumab was less costly than ranibizumab ($44,644 vs $89,665), and brolucizumab generated an additional 0.0046 QALYs (2.953 vs 2.948). CONCLUSIONS: Brolucizumab can be cost saving and cost-effective compared with aflibercept and ranibizumab in the treatment of wet AMD. DISCLOSURES: Novartis Pharmaceuticals Corporation provided funding to Xcenda for the cost-effectiveness analysis and preparation of this manuscript. Carlton is an employee of Xcenda. Agashivala is employed by Novartis Pharmaceuticals Corporation; Yu was an employee of Novartis Pharmaceutical Corporation at the time of this study. Hassan reports personal fees from iOPEN, BVI/Visitrec, ArcticDx, Bayer, F. Hoffmann-La Roche Ltd, Broadspot, BMC, Katalyst Surgical, Alcon, Vitreq, Surgicube, personal Ocugenix, Regeneron, Allergan, Oculus Surgical, Novartis, Genentech, and Eyepoint, unrelated to this work. Wykoff reports personal fees from Corcept Therapeutics, DORC, EyePoint, Gyroscope, IVERIC Bio, Merck, Notal Vision, ONL Therapeutics, Oxurion, Palatin, PolyPhotonix, Takeda, Thea Open Innovation; grants from Aerie Pharmaceuticals, Aldeyra, Gemini Therapeutics, Graybug Vision, IONIS Pharmaceutical, LMRI, Mylan, Neurotech Pharmaceuticals, Outlook Pharmaceuticals, Samsung Bioepis, Senju, Taiwan Liposome Company, Xbrane BioPharma, Santen; and grants and personal fees from Adverum, Allergan, Apellis, Chengdu Kanghong Biotechnologies (KHB), Clearside Biomedical, Genentech, Kodiak Sciences, NGM Biopharmaceuticals, Novartis, Opthea, Recens Medical, Regenxbio, Roche, and Regeneron, unrelated to this work. This research was presented as a virtual poster at the AMCP 2020 Annual Meeting, April 2020.
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Affiliation(s)
- Justin S Yu
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | | | | | - Tarek Hassan
- Oakland University William Beaumont School of Medicine and Associated Retinal Consultants, Royal Oak, MI
| | - Charles C Wykoff
- Retina Consultants of Houston, Retina Consultants of America, and Blanton Eye Institute and Houston Methodist Hospital, Houston, TX
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17
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Pereira-Figueiredo D, Nascimento AA, Cunha-Rodrigues MC, Brito R, Calaza KC. Caffeine and Its Neuroprotective Role in Ischemic Events: A Mechanism Dependent on Adenosine Receptors. Cell Mol Neurobiol 2021; 42:1693-1725. [PMID: 33730305 DOI: 10.1007/s10571-021-01077-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/05/2021] [Indexed: 02/07/2023]
Abstract
Ischemia is characterized by a transient, insufficient, or permanent interruption of blood flow to a tissue, which leads to an inadequate glucose and oxygen supply. The nervous tissue is highly active, and it closely depends on glucose and oxygen to satisfy its metabolic demand. Therefore, ischemic conditions promote cell death and lead to a secondary wave of cell damage that progressively spreads to the neighborhood areas, called penumbra. Brain ischemia is one of the main causes of deaths and summed with retinal ischemia comprises one of the principal reasons of disability. Although several studies have been performed to investigate the mechanisms of damage to find protective/preventive interventions, an effective treatment does not exist yet. Adenosine is a well-described neuromodulator in the central nervous system (CNS), and acts through four subtypes of G-protein-coupled receptors. Adenosine receptors, especially A1 and A2A receptors, are the main targets of caffeine in daily consumption doses. Accordingly, caffeine has been greatly studied in the context of CNS pathologies. In fact, adenosine system, as well as caffeine, is involved in neuroprotection effects in different pathological situations. Therefore, the present review focuses on the role of adenosine/caffeine in CNS, brain and retina, ischemic events.
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Affiliation(s)
- D Pereira-Figueiredo
- Neurobiology of the Retina Laboratory, Biomedical Sciences Program, Biomedical Institute, Fluminense Federal University, Niterói, RJ, Brazil
| | - A A Nascimento
- Neurobiology of the Retina Laboratory, Program of Neurosciences, Institute of Biology, Fluminense Federal University, Niterói, RJ, Brazil
| | - M C Cunha-Rodrigues
- Neurobiology of the Retina Laboratory, Program of Neurosciences, Institute of Biology, Fluminense Federal University, Niterói, RJ, Brazil
| | - R Brito
- Laboratory of Neuronal Physiology and Pathology, Cellular and Molecular Biology Department, Institute of Biology, Fluminense Federal University, Niterói, RJ, Brazil
| | - K C Calaza
- Neurobiology of the Retina Laboratory, Biomedical Sciences Program, Biomedical Institute, Fluminense Federal University, Niterói, RJ, Brazil. .,Neurobiology of the Retina Laboratory, Program of Neurosciences, Institute of Biology, Fluminense Federal University, Niterói, RJ, Brazil. .,Neurobiology Department, Biology Institute of Fluminense Federal University, Niteroi, RJ, Brazil.
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18
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Brown GC, Brown MM, Rapuano SB, Boyer D. A Cost-Benefit Analysis of VEGF-Inhibitor Therapy for Neovascular Age-Related Macular Degeneration in the United States. Am J Ophthalmol 2021; 223:405-429. [PMID: 32681907 DOI: 10.1016/j.ajo.2020.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE To perform a societal cost-benefit analysis comparing intravitreal bevacizumab (Avastin), ranibizumab (Lucentis), and aflibercept (Eylea) monotherapies for treating neovascular age-related macular degeneration (NVAMD). DESIGN Cost-benefit analysis. METHODS Center for Value-Based Medicine using published clinical trial and Medicare data. PATIENT POPULATION 168,400 estimated 2018 U.S. patients with new-onset NVAMD. Procedure(s): cost-benefit analysis using 2018 U.S. real dollars. OUTCOME MEASUREMENTS 11-year direct ophthalmic medical costs expended for bevacizumab, ranibizumab, and aflibercept monotherapies were compared with ophthalmic and nonophthalmic direct medical, direct nonmedical, and indirect medical (productivity) costs saved by the therapies. RESULTS Bevacizumab monotherapy had an individual, 11-year $14,772 treatment cost and net $357,680 societal return (11-year 2,421% return on investment [ROI]). Ranibizumab therapy cost $106,582 and returned $265,870 to society (249% ROI), whereas aflibercept treatment cost $61,811 and returned $310,611 to society (503% ROI). The 2018 NVAMD overall treatment cohort, 11-year net societal gain was $28.5 billion to patients and insurers, with $24.2 billion (84.9%) coming from bevacizumab therapy, $0.7 billion (2.5%) from ranibizumab therapy, and $3.6 billion (12.6%) from aflibercept therapy. Substituting bevacizumab for ranibizumab and aflibercept in the 2018 new-onset NVAMD patients would save an estimated $1.343 billion over 11 years. Vascular endothelial growth factor-inhibitor (VEGF-I) therapy in 2018 should contribute $12.2 billion to the Gross Domestic Product over 11 years. Late treatment would decrease this by 78% to $2.7 billion. CONCLUSIONS Intravitreal NVAMD bevacizumab, ranibizumab and aflibercept monotherapies accrue considerable financial, ROIs to patients and insurers as they increase national wealth.
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Affiliation(s)
- Gary C Brown
- Center for Value-Based Medicine, Hilton Head, South Carolina, USA; Wills Eye Hospital, Jefferson Medical University, Philadelphia, Pennsylvania, USA; Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia, USA.
| | - Melissa M Brown
- Center for Value-Based Medicine, Hilton Head, South Carolina, USA; Wills Eye Hospital, Jefferson Medical University, Philadelphia, Pennsylvania, USA; Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Sara B Rapuano
- Center for Value-Based Medicine, Hilton Head, South Carolina, USA; Wills Eye Hospital, Jefferson Medical University, Philadelphia, Pennsylvania, USA
| | - David Boyer
- Retina-Vitreous Associates Medical Group, Los Angeles, California, USA
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19
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Starr MR, Xu D, Boucher N, Saroj N, Patel LG, Ammar M, Pandit RR, Jenkins TL, Ho AC. Characterizing Progression to Neovascular AMD in Fellow Eyes of Patients Treated With Intravitreal Anti-VEGF Injections. Ophthalmic Surg Lasers Imaging Retina 2021; 52:123-128. [PMID: 34038686 DOI: 10.3928/23258160-20210302-02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND OBJECTIVE The purpose of this study was to assess the real-world incidence of conversion to bilateral neovascular age-related macular degeneration (nAMD) following treatment initiation of nAMD in the initial eye. PATIENTS AND METHODS This was a retrospective cohort of electronic health records from retinal centers across the United States (Vestrum Database) of all patients with unilateral nAMD treated with anti-vascular endothelial growth factor therapy. RESULTS A total of 22,553 patients with unilateral nAMD were included. Fellow eyes of 8,522 patients (38%) converted to nAMD. Among these, 2,639 (12%), 2,030 (9%), and 1,802 (8%) patients converted in Years 1, 2, and 3, respectively, after diagnosis in the first eye. Fellow eyes had better vision at conversion and 1 year following conversion. CONCLUSIONS The fellow eye should be monitored at regular intervals to detect signs of neovascularization. Fellow eyes presented with significantly better vision at diagnosis than the initial eye and maintained better visual acuity with less injections. [Ophthalmic Surg Lasers Imaging Retina. 2021;52:123-128.].
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20
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Exacerbation of AMD Phenotype in Lasered CNV Murine Model by Dysbiotic Oral Pathogens. Antioxidants (Basel) 2021; 10:antiox10020309. [PMID: 33670526 PMCID: PMC7922506 DOI: 10.3390/antiox10020309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence underscores an association between age-related macular degeneration (AMD) and periodontal disease (PD), yet the biological basis of this linkage and the specific role of oral dysbiosis caused by PD in AMD pathophysiology remains unclear. Furthermore, a simple reproducible model that emulates characteristics of both AMD and PD has been lacking. Hence, we established a novel AMD+PD murine model to decipher the potential role of oral infection (ligature-enhanced) with the keystone periodontal pathogen Porphyromonas gingivalis, in the progression of neovasculogenesis in a laser-induced choroidal-neovascularization (Li-CNV) mouse retina. By a combination of fundus photography, optical coherence tomography, and fluorescein angiography, we documented inflammatory drusen-like lesions, reduced retinal thickness, and increased vascular leakage in AMD+PD mice retinae. H&E further confirmed a significant reduction of retinal thickness and subretinal drusen-like deposits. Immunofluorescence microscopy revealed significant induction of choroidal/retinal vasculogenesis in AMD+PD mice. qPCR identified increased expression of oxidative-stress, angiogenesis, pro-inflammatory mediators, whereas antioxidants and anti-inflammatory genes in AMD+PD mice retinae were notably decreased. Through qPCR, we detected Pg and its fimbrial 16s-RrNA gene expression in the AMD+PD mice retinae. To sum-up, this is the first in vivo study signifying a role of periodontal infection in augmentation of AMD phenotype, with the aid of a pioneering AMD+PD murine model established in our laboratory.
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Lee JH, Kim JH, Kim JW, Kim CG, Lee DW. Difference in treatment burden of neovascular age-related macular degeneration among different types of neovascularization. Graefes Arch Clin Exp Ophthalmol 2021; 259:1821-1830. [PMID: 33404679 DOI: 10.1007/s00417-020-05028-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/14/2020] [Accepted: 11/23/2020] [Indexed: 10/22/2022] Open
Abstract
PURPOSE To evaluate the difference in the treatment burden among different types of neovascular age-related macular degeneration (AMD). METHODS This retrospective, observational study included 431 patients who were diagnosed with neovascular AMD. Patients were divided into three groups: type 1 or 2 neovascularization group (n = 167), type 3 neovascularization group (n = 50), and polypoidal choroidal vasculopathy (PCV) group (n = 214). The number of hospital visits per year and the number of anti-vascular endothelial growth factor (VEGF) injections per year were compared among these groups. Furthermore, the incidence of bilateral involvement during the follow-up period was compared among the groups. RESULTS The mean follow-up period was 50.6 ± 11.3 months. The number of hospital visits per year was significantly higher in the type 1 or 2 neovascularization group (mean: 6.1 ± 1.5) and type 3 neovascularization (6.6 ± 1.6) than in the PCV group (6.0 ± 1.5) (P < 0.001). The number of anti-VEGF injections per year was significantly higher in type 3 neovascularization group (3.1 ± 1.7) than in the type 1 or 2 neovascularization group (2.3 ± 1.5) or the PCV group (2.3 ± 1.2) (P = 0.042). There was a significant difference in the incidence of bilateral involvement among patients in type 1 or 2 neovascularization group (20.4%), type 3 neovascularization group (46.0%), and the PCV group (15.4%) (P < 0.001). CONCLUSIONS The high frequency of hospital visits and that of anti-VEGF injections in patients with type 3 neovascularization suggests high treatment burden in these patients. The high incidence of bilateral involvement could be one of the primary reasons for high treatment burden in patients with type 3 neovascularization.
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Affiliation(s)
- Ji Hyun Lee
- Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, 150-034, South Korea
| | - Jae Hui Kim
- Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, 150-034, South Korea.
| | - Jong Woo Kim
- Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, 150-034, South Korea
| | - Chul Gu Kim
- Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, 150-034, South Korea
| | - Dong Won Lee
- Department of Ophthalmology, Kim's Eye Hospital, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, 150-034, South Korea
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22
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Hatz K, Zimmermann F, Lazaridis E, Kardamakis D, Guichard M, Türksever C, Pruente C, Schmidt-Erfurth UM, Gerendas BS. Microvascular abnormalities and long-term efficacy after stereotactic radiotherapy under continued intravitreal anti-VEGF treatment for neovascular AMD. Br J Ophthalmol 2020; 106:415-421. [PMID: 33355151 PMCID: PMC8867264 DOI: 10.1136/bjophthalmol-2020-317563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/23/2020] [Accepted: 10/30/2020] [Indexed: 11/07/2022]
Abstract
Background For treatment of neovascular age-related macular degeneration (nAMD), multiple intravitreal injections of drugs targeting vascular endothelial growth factors (VEGF) result in a high burden for patients and healthcare systems. Low-energy stereotactic radiotherapy (SRT) might reduce the anti-VEGF need. This study evaluated the long-term efficacy and safety of adjunct SRT to anti-VEGF injections in a treat-and-extend regimen in nAMD. Methods 50 consecutive patients were followed 3 years after single-session SRT, a safety analysis including standardised study imaging, and a reading centre based image analysis was performed after 2 years. Results After increase from baseline (4.24±0.66 weeks) to 12 months (7.52±3.05 weeks, p<0.001), mean recurrence-free anti-VEGF treatment interval remained stable at 24 (7.40±3.17, p=0.746) and 36 months (6.89±3.00, p=0.175). Mean visual acuity change was −5.8±15.9 and −11.0±20.1 letters at 24 and 36 months, respectively. 36% of eyes showed microvascular abnormalities (MVAs) on colour fundus photography and/or fluoresceine angiography most frequently located in parafoveal inferior and nasal regions. Conclusion In real life, low-energy SRT was associated with a reduced anti-VEGF injection frequency through year 3. However, due to an observed visual acuity reduction and remarkable number of MVAs, a close follow-up of these patients is recommended. The real-life use, optimal treatment schedule and dose should be rediscussed critically.
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Affiliation(s)
- Katja Hatz
- Vista Klinik, Binningen, Switzerland .,University of Basel Faculty of Medicine, Basel, BS, Switzerland
| | - Frank Zimmermann
- Department of Radiation Oncology, University Hospital Basel, Basel, BS, Switzerland
| | | | - Dimitrios Kardamakis
- Department of Radiation Oncology, University of Patras Department of Medicine, Patras, Achaea, Greece
| | | | | | - Christian Pruente
- Department of Ophthalmology, University of Basel, Basel, BS, Switzerland.,Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
| | | | - Bianca S Gerendas
- Department of Ophthalmology and Optometry, Medical University of Vienna, Wien, Austria
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Khurana RN, Kunimoto D, Yoon YH, Wykoff CC, Chang A, Maturi RK, Agostini H, Souied E, Chow DR, Lotery AJ, Ohji M, Bandello F, Belfort R, Li XY, Jiao J, Le G, Kim K, Schmidt W, Hashad Y. Two-Year Results of the Phase 3 Randomized Controlled Study of Abicipar in Neovascular Age-Related Macular Degeneration. Ophthalmology 2020; 128:1027-1038. [PMID: 33221326 DOI: 10.1016/j.ophtha.2020.11.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 12/27/2022] Open
Abstract
PURPOSE To report the 2-year efficacy and safety of abicipar every 8 weeks and quarterly (after initial doses) compared with monthly ranibizumab in patients with treatment-naïve neovascular age-related macular degeneration (nAMD). DESIGN Two multicenter, randomized, phase 3 clinical trials with identical protocols (CEDAR and SEQUOIA). Analyses used pooled trial data. PARTICIPANTS The trials enrolled 1888 patients (1 eye/patient) with active choroidal neovascularization secondary to age-related macular degeneration and best-corrected visual acuity (BCVA) of 24 to 73 Early Treatment Diabetic Retinopathy Study letters. METHODS At enrollment, patients were assigned to study eye treatment with abicipar 2 mg every 8 weeks after initial doses at baseline and weeks 4 and 8 (abicipar Q8, n = 630), abicipar 2 mg every 12 weeks after initial doses at baseline and weeks 4 and 12 (abicipar Q12, n = 628), or ranibizumab 0.5 mg every 4 weeks (ranibizumab Q4, n = 630). MAIN OUTCOME MEASURES Efficacy measures included stable vision (<15-letter loss in BCVA from baseline) and change from baseline in BCVA and central retinal thickness (CRT). Safety measures included adverse events (AEs). RESULTS For patients who completed the study, efficacy of abicipar after initial doses was maintained through week 104. At week 104, the proportion of patients with stable vision was 93.0% (396/426), 89.8% (379/422), and 94.4% (470/498); mean change in BCVA from baseline was +7.8 letters, +6.1 letters, and +8.5 letters, and mean change in CRT from baseline was -147 μm, -146 μm, and -142 μm in the abicipar Q8 (14 injections), abicipar Q12 (10 injections), and ranibizumab Q4 (25 injections) groups, respectively. The overall incidence of intraocular inflammation (IOI) AEs was 15.4%, 15.3%, and 0.3% from baseline through week 52 and 16.2%, 17.6%, and 1.3% from baseline through week 104 in the abicipar Q8, abicipar Q12, and ranibizumab Q4 groups, respectively. CONCLUSIONS Two-year results show efficacy of abicipar Q8 and Q12 in nAMD. First onset of IOI events with abicipar was much reduced in the second year and comparable with ranibizumab (0.8% and 2.3% vs. 1.0%). The extended duration of effect of abicipar allows for quarterly dosing and reduced treatment burden.
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Affiliation(s)
- Rahul N Khurana
- Northern California Retina Vitreous Associates, Mountain View, California.
| | | | - Young Hee Yoon
- Asan Medical Center, University of Ulsan, Seoul, South Korea
| | | | - Andrew Chang
- Sydney Retina Clinic, Sydney, Australia; Save Sight Institute, University of Sydney, Sydney, Australia
| | - Raj K Maturi
- Midwest Eye Institute, Indianapolis, Indiana; Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Hansjürgen Agostini
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Eric Souied
- Centre Hospitalier Creteil, Service Universitaire d'Ophthalmologie, Creteil, France
| | - David R Chow
- St Michael's Hospital, University of Toronto, Toronto, Canada; Toronto Retina Institute, North York, Canada
| | | | - Masahito Ohji
- Department of Ophthalmology, Shiga University of Medical Science, Shiga, Japan
| | - Francesco Bandello
- University Vita-Salute Scientific Institute, Hospital San Raffaele, Milan, Italy
| | - Rubens Belfort
- Vision Institute, Federal University of São Paulo, São Paulo, Brazil
| | - Xiao-Yan Li
- Allergan, an AbbVie company, Irvine, California
| | - Jenny Jiao
- Allergan, an AbbVie company, Irvine, California
| | - Grace Le
- Allergan, an AbbVie company, Irvine, California
| | - Kimmie Kim
- Allergan, an AbbVie company, Irvine, California
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Jaggi D, Nagamany T, Ebneter A, Munk M, Wolf S, Zinkernagel M. Aflibercept for age-related macular degeneration: 4-year outcomes of a ‘treat-and-extend’ regimen with exit-strategy. Br J Ophthalmol 2020; 106:246-250. [PMID: 33127830 PMCID: PMC8788035 DOI: 10.1136/bjophthalmol-2020-316514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 08/20/2020] [Accepted: 10/11/2020] [Indexed: 12/23/2022]
Abstract
AimTo report long-term outcomes on best-corrected visual acuity (BCVA) and treatment intervals with a treat-and-extend (T&E) regimen in patients with neovascular age-related macular degeneration (nAMD).MethodsThis observational study included treatment-naïve patients with nAMD, treated with aflibercept. A specific T&E protocol without a loading phase and predefined exit criteria was administered. After reaching predefined ‘exit-criteria’, the treatment period was complete, and patients were observed three monthly.ResultsEighty-two patients with a follow-up period of ≥2 years were included. BCVA (mean±SD, ETDRS letters) increased from 51.9±25.2 at baseline to 63.7±17.7 (p<0.0001) at 1 year, 61.7±18.5 (p<0.0001) at 2 years, 62.4±19.5 (p<0.0001, n=61) at 3 years and remained insignificantly higher than baseline at 4 years at 58.5±24.3 (p=0.22). Central subfield thickness (mean±SD, μm) decreased significantly from 387.5±107.6 (p<0.0001) at baseline to 291.9±65.5 (p<0.0001) at 1 year, and remained significantly lower until 4 years at 289.0±59.4 (p<0.0001). Treatment intervals (mean±SD, weeks) could be extended up to 9.3±3.1 weeks at 1 year and remained at 11.2±3.5 weeks at 4 years. Twenty-nine (35%) patients reached exit criteria and continued with three monthly observation only.ConclusionsAfter 4 years of treatment, initial vision gains were maintained with a reasonable treatment burden, even without an initial loading phase. Our results on functional outcomes are comparable with large controlled studies.
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Affiliation(s)
- Damian Jaggi
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
| | - Thanoosha Nagamany
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
| | - Andreas Ebneter
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
| | - Marion Munk
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Sebastian Wolf
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Martin Zinkernagel
- Department of Ophthalmology, Inselspital, Bern University Hostpital, University of Bern, Bern, Switzerland
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Brown GC, Brown MM, Rapuano S, Boyer D. Cost-Utility Analysis of VEGF Inhibitors for Treating Neovascular Age-Related Macular Degeneration. Am J Ophthalmol 2020; 218:225-241. [PMID: 32565050 DOI: 10.1016/j.ajo.2020.05.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 05/12/2020] [Accepted: 05/21/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE To perform 11- and 2-year health care sector (ophthalmic) and societal cost perspective reference case, cost-utility analyses comparing bevacizumab, ranibizumab, and aflibercept monotherapies for neovascular age-related macular degeneration (NVAMD). DESIGN Cost-utility analysis. METHODS The authors performed 11-year and 2-year ophthalmic and societal cost perspective, cost-utility analyses comparing bevacizumab, ranibizumab, and aflibercept monotherapies for neovascular age-related macular degeneration (NVAMD). We employed patient utilities, bilateral outcomes, 2018 U.S. dollars, vision-related mortality, a Medicare fee schedule, and CATT (Comparison of Age-Related Macular Degeneration Treatments) study and VIEW (VEGF Trap-Eye: Investigation of Efficacy and Safety in Wet AMD) trial. Cochrane data were also used. SETTING Center for Value-Based Medicine. Patient/study population: patients with NVAMD. INTERVENTION Cost-utility analyses using published data. Data-modeled 10-year vision outcomes were modeled forward to year 11. MAIN OUTCOME MEASUREMENT These included cost-utility ratios (CURs), costs, and quality-adjusted life-years (QALYs) gained. $100,00/QALY was considered the US cost-effectiveness upper limit. RESULTS Bevacizumab and ranibizumab each conferred an 11-year, 1.339 QALY gain versus observation. Aflibercept conferred a 1.380 QALY gain. Aflibercept conferred greater QALY gain for less cost than ranibizumab but was not cost-effective compared to bevacizumab ($1,151,451/QALY incremental CUR). The average ophthalmic cost perspective CUR for bevacizumab was $11,033/QALY, $79,600/QALY for ranibizumab, and $44,801/QALY for aflibercept. Eleven-year therapies saved a 1.0 year-of-life loss without treatment from the 11.0-year life expectancy. Early treatment was 138%-149% more cost-effective than late treatment. Two-year therapy prevented a 1-month-of-life loss, and revealed bevacizumab, ranibizumab, and aflibercept conferred 0.141, 0.141, and 0.164 QALY gains, respectively, with corresponding average CURs of $40,371/QALY, $335,726/QALY, and $168,006/QALY, respectively. CONCLUSIONS From an ophthalmic (medical) cost perspective, bevacizumab, ranibizumab, and aflibercept NVAMD monotherapies were all cost-effective over 11 years, with bevacizumab 6.21× more cost-effective than ranibizumab and 3.06× more cost-effective than aflibercept. Two-year modeling revealed bevacizumab was cost-effective, whereas ranibizumab and aflibercept were not. Early treatment was critical for obtaining optimal vision and cost-effectiveness, as is long-term follow-up and adherence to treatment.
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Berkowitz ST, Patel S. Value of Anti-Vascular Endothelial Growth Factor Gene Therapy for Neovascular Age-Related Macular Degeneration. Ophthalmol Retina 2020; 5:357-364. [PMID: 32818623 DOI: 10.1016/j.oret.2020.08.005] [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: 05/10/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To use discounted cash flow (DCF) analysis to estimate the value creation associated with anti-vascular endothelial growth factor (VEGF) genetic therapy for neovascular age-related macular degeneration (nAMD). DESIGN Economic analysis. PARTICIPANTS Adults undergoing serial intravitreal anti-VEGF injections in 1 eye for nAMD. METHODS Discounted cash flow modeling with scenario analysis was used to derive a present value for a 1-time alternative treatment to lifelong anti-VEGF treatment for nAMD. Multiple sensitivity analyses were performed on the basis of patient age at time of first injection and frequency interval of intravitreal injection. MAIN OUTCOME MEASURES Present values of DCF and scenario analyses. RESULTS Discounted cash flow analysis of intravitreal anti-VEGF treatment for nAMD resulted in a base-case valuation of $208 420.61, $219 093.31, and $17 379.41 for a 1-time alternative treatment to aflibercept, ranibizumab, and bevacizumab, respectively. This figure covaried significantly with anti-VEGF agent according to the patient age at first injection ($78 323.19-$292 449.87) and frequency of injections ($148 422.91-$388 096.81). In addition, for bevacizumab, variability was driven by the hypothetical degree of clinical superiority of 1-time therapy to repeated intravitreal injections due to reduction in adverse events ($17 379.41-$18 250.79) or reduction in direct or indirect costs associated with age-related macular degeneration ($17 379.41-$657 406.55). CONCLUSIONS Anti-VEGF gene therapy approaches can create significantly different value propositions based on the agent modeled, patient age at first injection, frequency of injections, and clinical profile of the medication. Although the use of aflibercept or ranibizumab as a comparative cost metric is logical from a bioequivalence perspective, the disparity in medication costs should not be the primary value driver in applied models. Instead, bevacizumab should be the base case ($17 379.41), with additional value driven from an improvement in quality of life through clinical superiority. A reduction in direct and indirect costs can be used to approximate the value from maintained visual acuity, which is elaborated in the DCF analysis approach described in this article. This model can serve as a basis for assessing the price ceiling of myriad gene therapy approaches. Given the high present values for these therapeutics, innovative costing and reimbursement mechanisms should be further explored, with contingencies for sustained efficacy.
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Affiliation(s)
- Sean T Berkowitz
- Department of Ophthalmology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Shriji Patel
- Department of Ophthalmology, Vanderbilt University School of Medicine, Nashville, Tennessee.
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Leung EH, Gibbons A, Koch DD. Cost-Effectiveness of Preoperative OCT in Cataract Evaluation for Multifocal Intraocular Lens. Ophthalmology 2020; 127:859-865. [PMID: 32173111 PMCID: PMC7311225 DOI: 10.1016/j.ophtha.2020.01.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 01/22/2020] [Accepted: 01/24/2020] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To determine the cost effectiveness of an adjunctive screening OCT during the preoperative evaluation of a patient considering cataract surgery with a multifocal intraocular lens (IOL) implantation. DESIGN Cost-effectiveness analysis. PARTICIPANTS A 67-year-old man with 20/60 vision undergoing evaluation for first-eye cataract surgery. METHODS The cost-effectiveness analysis of the reference patient undergoing a preoperative cataract examination with and without a screening OCT was performed, evaluating for vitreoretinal diseases including an epiretinal membrane, age-related macular degeneration, vitreomacular traction, and cystoid macular edema. It was assumed that patients with macular pathologies detected before surgery would receive a monofocal IOL and be referred to a retina specialist for evaluation and management. The Medicare reimbursable cost of an OCT was $41.81. All costs and benefits were adjusted for inflation to 2019 United States dollars and discounted 3% per annum over a 16-year time horizon. Probability sensitivity analyses and 1-way deterministic sensitivity analyses were performed to assess for uncertainty. MAIN OUTCOME MEASURES Incremental cost-effectiveness ratio and incremental cost-utility ratio (ICUR) measured in quality-adjusted life years (QALYs). RESULTS Approximately 20.5% of patients undergoing cataract surgery may have macular pathologies, of which 11% may not be detected on the initial clinical examination. In the base case, an adjunctive preoperative OCT was cost effective from a third-party payer and societal perspective in the United States. In the probability sensitivity analyses, the ICURs were within the societal willingness-to-pay threshold of $50 000/QALY in approximately 64.4% of the clinical scenarios. CONCLUSIONS A preoperative screening OCT during the evaluation of a patient considering a multifocal IOL added to the costs of the cataract surgery, but the OCT increased the detection of macular pathologies and improved the QALYs over time. An adjunctive screening OCT can be cost effective from a third-party payer and societal perspective.
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Affiliation(s)
- Ella H Leung
- Cullen Eye Institute, Baylor College of Medicine, Houston, Texas.
| | - Allister Gibbons
- Bascom Palmer Eye Institute, University of Miami, Miami, Florida
| | - Douglas D Koch
- Cullen Eye Institute, Baylor College of Medicine, Houston, Texas
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Efficacy and Safety of Abicipar in Neovascular Age-Related Macular Degeneration: 52-Week Results of Phase 3 Randomized Controlled Study. Ophthalmology 2020; 127:1331-1344. [PMID: 32471729 DOI: 10.1016/j.ophtha.2020.03.035] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 01/17/2023] Open
Abstract
PURPOSE To compare the efficacy and safety of abicipar every 8 weeks and quarterly (after initial doses) versus ranibizumab every 4 weeks in treatment-naïve patients with neovascular age-related macular degeneration (AMD). DESIGN Two randomized, multicenter, double-masked, parallel-group, active-controlled, phase 3 clinical trials (CEDAR, SEQUOIA) with identical protocols were conducted. Data from both trials were pooled for analysis. PARTICIPANTS Patients with active choroidal neovascularization secondary to AMD and best-corrected visual acuity (BCVA) of 24-73 Early Treatment Diabetic Retinopathy Study letters in the study eye were enrolled. METHODS Patients (n = 1888) were randomized in a 1:1:1 ratio to study eye treatment with abicipar 2 mg every 8 weeks after 3 initial doses at baseline and weeks 4 and 8 (Q8), abicipar 2 mg every 12 weeks after 3 initial doses at baseline and weeks 4 and 12 (Q12), or ranibizumab 0.5 mg every 4 weeks (Q4). MAIN OUTCOME MEASURES The primary efficacy end point was proportion of patients with stable vision (defined as <15-letter loss in BCVA from baseline) in the study eye at week 52. Secondary end points included change from baseline in BCVA and central retinal thickness (CRT) at week 52. Safety measures included adverse events (AEs). RESULTS The proportion of patients with stable vision at week 52 was 93.2%, 91.3%, and 95.8% in the abicipar Q8, abicipar Q12, and ranibizumab Q4 groups, respectively, with both abicipar Q8 and Q12 noninferior to ranibizumab Q4. Week 52 mean change from baseline in BCVA was 7.5, 6.4, and 8.4 letters and in CRT was -144, -145, and -144 μm in the abicipar Q8, abicipar Q12, and ranibizumab Q4 groups, respectively. Incidence of intraocular inflammation (IOI) AEs was 15.4%, 15.3%, and 0.3%, respectively. The IOI AEs were typically mild or moderate in severity and treated with topical corticosteroids; 62 of 192 patients (32.3%) received oral and/or injectable corticosteroids. CONCLUSIONS Abicipar Q8 and Q12 were both noninferior to ranibizumab Q4 in the primary end point of stable vision at week 52. Intraocular inflammation was more frequent with abicipar. Quarterly and Q8 abicipar reduce nAMD disease and treatment burden compared with monthly treatment.
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Benedict K, Shantha JG, Yeh S, Beer KD, Jackson BR. Presumed ocular histoplasmosis syndrome in a commercially insured population, United States. PLoS One 2020; 15:e0230305. [PMID: 32168355 PMCID: PMC7069623 DOI: 10.1371/journal.pone.0230305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 02/27/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose To describe epidemiologic features of patients with presumed ocular histoplasmosis syndrome (POHS) in the United States using insurance claims data and compare POHS patients with and without choroidal neovascularization (CNV). Design Retrospective cohort study. Methods Patients with International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis codes for histoplasmosis retinitis on an outpatient claim in the 2014 IBM® MarketScan® Commercial Database and the Medicare Supplemental Database who were enrolled for at least 2 years after the POHS code. Main outcome measures Data related to testing, treatment, and direct medical costs. Results Among >50 million total MarketScan enrollees, 6,678 (13 per 100,000) had a POHS diagnosis code. Of those, 2,718 were enrolled for 2 years; 698 (25%) of whom had a CNV code. Eleven of the 13 states with the highest POHS rates bordered the Mississippi and Ohio rivers. CNV patients had significantly more eye care provider visits (mean 8.8 vs. 3.2, p<0.0001), more ophthalmic imaging tests, higher rates of treatment with anti-vascular endothelial growth factor injections (45% vs. 4%, p<0.0001), and incurred higher mean total yearly costs ($1,251.83 vs. $251.36, p<0.0001) than POHS patients without CNV. Conclusions Although the relationship between Histoplasma and POHS remains controversial, geographic patterns of POHS patient residence were consistent with the traditionally reported range of the fungus. CNV in the context of POHS was associated with additional healthcare use and costs. Further research to understand POHS etiology, risk factors, prevalence, and complications is needed, along with early diagnosis and treatment strategies.
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Affiliation(s)
- Kaitlin Benedict
- Mycotic Diseases Branch, Division of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- * E-mail:
| | - Jessica G. Shantha
- Department of Ophthalmology, Emory Eye Center, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Steven Yeh
- Department of Ophthalmology, Emory Eye Center, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Karlyn D. Beer
- Mycotic Diseases Branch, Division of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Brendan R. Jackson
- Mycotic Diseases Branch, Division of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
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Luu KT, Seal JR, Attar M. A Mechanistic and Translational Pharmacokinetic-Pharmacodynamic Model of Abicipar Pegol and Vascular Endothelial Growth Factor Inhibition. J Pharmacol Exp Ther 2020; 373:184-192. [DOI: 10.1124/jpet.119.263178] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/12/2020] [Indexed: 01/20/2023] Open
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Patel PJ, Ziemssen F, Ng E, Muthutantri A, Silverman D, Tschosik EA, Cantrell RA. Burden of Illness in Geographic Atrophy: A Study of Vision-Related Quality of Life and Health Care Resource Use. Clin Ophthalmol 2020; 14:15-28. [PMID: 32021065 PMCID: PMC6955611 DOI: 10.2147/opth.s226425] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/25/2019] [Indexed: 01/16/2023] Open
Abstract
Purpose To gain comprehensive information on the burden of illness due to geographic atrophy (GA). Methods This cross-sectional study with a retrospective chart review involved patients aged ≥70 years with physician-confirmed bilateral symptomatic GA due to age-related macular degeneration (GA group), as well as patients of similar age with no ophthalmic condition that in the opinion of the investigator affected visual function (non-GA group). Data relating to patients’ current disease status and sociodemographics were self-reported on patient questionnaires at study entry and extracted from patient charts. Historical data on health care resource utilization (HCRU) were also collected via patient questionnaires and retrospective chart review (GA group only). Overall vision-related functioning and quality of life (QoL) were compared between the GA and non-GA groups using the National Eye Institute Visual Function Questionnaire-25 (NEI-VFQ-25) composite and subscales, and change in vision over the past year was assessed using the Global Rating of Change Scale. Results Vision-related functioning and QoL were poorer in patients with vs without GA (n=137 vs 52), as demonstrated by significantly lower NEI-VFQ-25 composite score (mean, 53.1 vs 84.5 points, respectively; P<0.001), as well as lower subscale scores for near activities, distance activities, dependency, driving, social functioning, mental health, role difficulties, color vision, and peripheral vision. Substantially more patients with GA than without GA reported worsening in vision over the past year (82% vs 25%, respectively; odds ratio, 13.55; P<0.001). In the GA group, associated mean annual costs for direct ophthalmological resource use per patient amounted to €1772 (mostly for tests/procedures), and for indirect ophthalmological resource use, €410 (mostly for general practitioner visits). Conclusion Patients with GA experience a poorer level of vision-related function and QoL than their peers, especially in relation to driving. GA is also associated with notable HCRU/associated costs, mostly direct costs attributed to diagnostic tests/procedures.
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Affiliation(s)
- Praveen J Patel
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust, and University College London Institute of Ophthalmology, London, UK
| | | | - Eugene Ng
- Institute of Eye Surgery, UPMC Whitfield and Waterford Institute of Technology, Waterford, Ireland
| | | | - David Silverman
- Roche Products Limited, Welwyn Garden City, Hertfordshire, UK
| | | | - Ronald A Cantrell
- Genentech, Inc., A Member of the Roche Group, South San Francisco, CA, USA
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Brown MM, Brown GC. Economic Evaluation of Anti–Vascular Endothelial Growth Factor Therapy for Wet Age-Related Macular Degeneration. JAMA Ophthalmol 2020; 138:48-49. [DOI: 10.1001/jamaophthalmol.2019.4582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Melissa M. Brown
- Center for Value-Based Medicine, Hilton Head, South Carolina
- Wills Eye Hospital, Jefferson Medical University, Philadelphia, Pennsylvania
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Gary C. Brown
- Center for Value-Based Medicine, Hilton Head, South Carolina
- Wills Eye Hospital, Jefferson Medical University, Philadelphia, Pennsylvania
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
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Fasler K, Fu DJ, Moraes G, Wagner S, Gokhale E, Kortuem K, Chopra R, Faes L, Preston G, Pontikos N, Patel PJ, Tufail A, Lee AY, Balaskas K, Keane PA. Moorfields AMD database report 2: fellow eye involvement with neovascular age-related macular degeneration. Br J Ophthalmol 2019; 104:684-690. [PMID: 31611234 DOI: 10.1136/bjophthalmol-2019-314446] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 07/18/2019] [Accepted: 08/16/2019] [Indexed: 11/03/2022]
Abstract
BACKGROUND/AIMS Neovascular age-related macular degeneration (nAMD) is frequently bilateral, and previous reports on 'fellow eyes' have assumed sequential treatment after a period of treatment of the first eye only. The aim of our study was to analyse baseline characteristics and visual acuity (VA) outcomes of fellow eye involvement with nAMD, specifically differentiating between sequential and non-sequential (due to macular scarring in the first eye) antivascular endothelial growth factor treatment and timelines for fellow eye involvement. METHODS Retrospective, electronic medical record database study of the Moorfields AMD database of 6265 patients/120 286 single entries with data extracted between 21 October 2008 and 9 August 2018. The data set for analysis consisted of 1180 sequential, 807 non-sequential and 3410 unilateral eyes. RESULTS Mean VA (ETDRS letters±SD) of sequentially treated fellow eyes at baseline was significantly higher (63±13), VA gain over 2 years lower (0.37±14) and proportion of eyes with good VA (≥70 letters) higher (46%) than the respective first eyes (baseline VA 54±16, VA gain at 2 years 5.6±15, percentage of eyes with good VA 39%). Non-sequential fellow eyes showed baseline characteristics and VA outcomes similar to first eyes. Fellow eye involvement rate was 32% at 2 years, and median time interval to fellow eye involvement was 71 (IQR: 27-147) weeks. CONCLUSION This report shows that sequentially treated nAMD fellow eyes have better baseline and final VA than non-sequentially treated eyes after 2 years of treatment. Sequentially treated eyes also had a greater proportion with good VA after 2 years.
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Affiliation(s)
- Katrin Fasler
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK.,Department of Ophthalmology, University Hospital Zurich, Zurich, Switzerland
| | - Dun Jack Fu
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Gabriella Moraes
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Siegfried Wagner
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Eesha Gokhale
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Karsten Kortuem
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK.,University Eye Hospital, Ludwig Maximilians University, Munich, Germany
| | - Reena Chopra
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Livia Faes
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK.,Department of Ophthalmology, Luzerner Kantonsspital, Luzern, Switzerland
| | - Gabriella Preston
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Nikolas Pontikos
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Praveen J Patel
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Adnan Tufail
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Aaron Y Lee
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA
| | - Konstantinos Balaskas
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Pearse A Keane
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust, London, UK
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Johnson S, Buessing M, O’Connell T, Pitluck S, Ciulla TA. Cost-effectiveness of Voretigene Neparvovec-rzyl vs Standard Care for RPE65-Mediated Inherited Retinal Disease. JAMA Ophthalmol 2019; 137:1115-1123. [PMID: 31318398 PMCID: PMC6646972 DOI: 10.1001/jamaophthalmol.2019.2512] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/19/2019] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Voretigene neparvovec-rzyl, the first gene therapy approved by the US Food and Drug Administration, was approved for the treatment for RPE65-mediated inherited retinal disease (IRD) in December 2017. This gene therapy is associated with high up-front costs and high efficacy, although of unknown duration, and its cost-effectiveness has not been assessed with RPE65 IRD-specific, longitudinal, patient-observation-level data. OBJECTIVE To assess the incremental cost-effectiveness ratio (ICER) of voretigene neparvovec-rzyl compared with standard care for RPE65-mediated inherited retinal disease. DESIGN, SETTING, AND PARTICIPANTS In this economic analysis, a health state transition model based on visual acuity and field with a lifetime horizon was developed to estimate the cost-effectiveness of voretigene neparvovec-rzyl. The model was populated with data from a clinical trial of voretigene neparvovec-rzyl to evaluate treatment outcome and a natural history study of RPE65-mediated IRD to examine disease progression. Direct costs were derived from the literature. Indirect costs, including educational attainment, productivity, caregiver burden, and governmental programs, were estimated using published literature and data analysis of public national surveys. A health utility vignette study specific to RPE65-mediated IRD was used for health utility inputs. The cost-effectiveness study described in this article was conducted from September 15, 2017, to August 23, 2018. EXPOSURES Bilateral voretigene neparvovec-rzyl therapy or standard care. MAIN OUTCOMES AND MEASURES Incremental cost-effectiveness ratio. RESULTS The model population included 70 patients with RPE65-mediated IRD, with a mean age of 15 years; 42 of 70 patients (60%) were female. In the base case, voretigene neparvovec-rzyl compared with standard care was associated with lower total costs ($2.2 million vs $2.8 million) and higher quality-adjusted life-years (18.1 vs 8.6). Voretigene neparvovec-rzyl remains cost-effective if at least 8.8% of the long-term treatment effect continues after year 3 when including indirect costs and 43.3% when excluding indirect costs, assuming a cost threshold of $150 000 per quality-adjusted life-year. CONCLUSIONS AND RELEVANCE Results of this study suggest that voretigene neparvovec-rzyl is cost-effective compared with standard care when using a lifetime horizon, excluding indirect costs, and using a threshold of $150 000 per quality-adjusted life-year.
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Affiliation(s)
| | | | | | | | - Thomas A. Ciulla
- Spark Therapeutics Inc, Philadelphia, Pennsylvania
- currently, Clearside Biomedical, Alpharetta, Georgia
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Visual Prognosis in the Better-seeing Eyes of Patients with Unilateral Polypoidal Choroidal Vasculopathy. Optom Vis Sci 2019; 96:686-694. [PMID: 31479024 DOI: 10.1097/opx.0000000000001419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
SIGNIFICANCE In patients initially diagnosed as having unilateral polypoidal choroidal vasculopathy, the visual prognosis of the better-seeing eye is highly favorable. If patients are overly pessimistic regarding their vision in the future, physicians can encourage patients by informing them of the small possibility for visual deterioration in the better-seeing eye. PURPOSE The purpose of this study was to investigate the long-term changes in the visual acuity of the better-seeing eyes in patients with unilateral polypoidal choroidal vasculopathy. METHODS This retrospective, single-institution study was performed with 221 patients who were diagnosed as having unilateral polypoidal choroidal vasculopathy and who were treated with intravitreal anti-vascular endothelial growth factor. Only patients with an initially uninvolved eye best-corrected visual acuity (BCVA) of 20/40 or better and who were followed up for at least 24 months were included. The changes in the BCVAs of the initially involved and uninvolved eyes as well as the better-seeing eyes were measured. For patients with three or more lines of uninvolved eye visual deterioration, the cause for the visual deterioration was identified. RESULTS Patients were followed up for a mean of 43.1 ± 11.8 months after diagnosis. During the follow-up period, three or more lines of deterioration in the BCVA were noted in 61 initially involved eyes (27.6%) and 11 uninvolved eyes (4.9%). The reasons for uninvolved eye visual deterioration were neovascularization (n = 8), retinal vein occlusion (n = 2), and posterior capsule opacification (n = 1). At diagnosis, the BCVA of the better-seeing eye was 0.05 ± 0.08 (Snellen equivalents, 20/22). During the follow-up period, three or more lines of deterioration in the BCVA for the better-seeing eye were noted in eight patients (3.6%). CONCLUSIONS Visual acuity of the better-seeing eye over time remained stable in most patients who were initially diagnosed as having unilateral polypoidal choroidal vasculopathy. As a result, the visual prognosis of the better-seeing eye is highly favorable in this condition.
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Brown GC, Brown MM, Busbee BG. Cost-utility analysis of cataract surgery in the United States for the year 2018. J Cataract Refract Surg 2019; 45:927-938. [DOI: 10.1016/j.jcrs.2019.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 11/16/2022]
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Brown GC, Brown MM. Health care stakeholder perceptions of vision loss. Surv Ophthalmol 2019; 64:345-352. [DOI: 10.1016/j.survophthal.2018.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 12/29/2022]
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Brown GC, Brown MM. Patient Preference-Based Comparative Effectiveness and Cost-Utility Analysis of the Prostamides for Open-Angle Glaucoma. J Ocul Pharmacol Ther 2019; 35:145-160. [DOI: 10.1089/jop.2018.0114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Gary C. Brown
- Center for Value-Based Medicine®, Hilton Head, South Carolina
- Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania
- The Eye Research Institute, Philadelphia, Pennsylvania
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Melissa M. Brown
- Center for Value-Based Medicine®, Hilton Head, South Carolina
- Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania
- The Eye Research Institute, Philadelphia, Pennsylvania
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
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Zimmermann M, Lubinga SJ, Banken R, Rind D, Cramer G, Synnott PG, Chapman RH, Khan S, Carlson J. Cost Utility of Voretigene Neparvovec for Biallelic RPE65-Mediated Inherited Retinal Disease. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:161-167. [PMID: 30711060 DOI: 10.1016/j.jval.2018.09.2841] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 05/22/2023]
Abstract
OBJECTIVE The gene therapy voretigene neparvovec (VN) is the first Food and Drug Administration-approved treatment for vision loss owing to the ultra-rare RPE65-mediated inherited retinal disorders. We modeled the cost-utility of VN compared with standard of care (SoC). STUDY DESIGN A 2-state Markov model, alive and dead, with a lifetime horizon. METHODS Visual acuity (VA) and visual field (VF) were tracked to model quality-adjusted life-years (QALYs). VN led to an improvement in VA and VF that we assumed was maintained for 10 years followed by a 10-year waning period. The cost of VN was $850 000, and other direct medical costs for depression and trauma were included for a US healthcare system perspective. A modified societal perspective also included direct nonmedical costs and indirect costs. RESULTS VN provided an additional 1.3 QALYs over the remaining lifetime of an individual. The average total lifetime direct medical cost for individuals treated with VN was $1 039 000 compared with $213 400 for SoC, leading to an incremental cost-effectiveness ratio (ICER) of $643 800/QALY from the US healthcare system perspective. Direct nonmedical costs totalled $1 070 900 for VN and $1 203 300 for SoC, and indirect costs totalled $405 400 for VN and $482 900 for SoC, leading to an ICER of $480 100/QALY from the modified societal perspective. CONCLUSIONS At the current price, VN was unlikely to reach traditional cost-effectiveness standards compared with SoC. VN has important implications for both development and pricing of future gene therapies; therefore clinical and economic analyses must be carefully considered.
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Affiliation(s)
- Marita Zimmermann
- Pharmaceutical Outcomes Research and Policy Program, Department of Pharmacy, University of Washington, Seattle, WA, USA.
| | - Solomon J Lubinga
- Pharmaceutical Outcomes Research and Policy Program, Department of Pharmacy, University of Washington, Seattle, WA, USA
| | - Reiner Banken
- Institute for Clinical and Economic Review, Boston, MA, USA
| | - David Rind
- Institute for Clinical and Economic Review, Boston, MA, USA
| | - Geri Cramer
- Institute for Clinical and Economic Review, Boston, MA, USA
| | | | | | - Sonya Khan
- Institute for Clinical and Economic Review, Boston, MA, USA
| | - Josh Carlson
- Pharmaceutical Outcomes Research and Policy Program, Department of Pharmacy, University of Washington, Seattle, WA, USA
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LONG-TERM VISUAL CHANGES IN INITIALLY STRONGER FELLOW EYES IN PATIENTS WITH UNILATERAL TYPE 3 NEOVASCULARIZATION. Retina 2018; 39:1672-1681. [PMID: 29979454 DOI: 10.1097/iae.0000000000002239] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE To evaluate long-term visual changes in initially stronger fellow eyes in patients with unilateral Type 3 neovascularization. METHODS This retrospective study included 102 patients who were newly diagnosed with unilateral Type 3 neovascularization and in whom the best-corrected visual acuity (BCVA) of the fellow eye was initially better than that of the involved eye. All patients were treated with intravitreal anti-vascular endothelial growth factor injections. The BCVAs were compared at diagnosis, 12 months, 24 months, and the final visit. In patients who experienced ≥3 lines of visual deterioration in the BCVA of the fellow eye, the reason for visual deterioration was also verified. RESULTS The patients were followed for 45.9 ± 18.5 months after diagnosis. At diagnosis, the fellow-eye BCVA was better than that of the initially involved eye in all 102 patients. However, the fellow-eye visual acuity was the same or worse than that of the initially involved eye in 13 patients (12.7%) at 12 months, in 20 patients (19.6%) at 24 months, and in 24 patients (23.5%) at the final visit. At the final visit, 53 patients (51.9%) had experienced ≥3 lines of deterioration in the BCVA of the fellow eye. Fellow-eye neovascularization occurred in 42 patients, and geographic atrophy involving the fovea was noted in the remaining 11 patients. CONCLUSION Deterioration of the visual acuity of the fellow eye is frequently noted in unilateral Type 3 neovascularization. As a result of this deterioration, the initially stronger fellow eye did not remain stronger in 23.5% of the patients, suggesting the need for long-term strict treatment of the initially involved eye even when the visual acuity of the fellow eye is good.
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van Asten F, Michels CTJ, Hoyng CB, van der Wilt GJ, Klevering BJ, Rovers MM, Grutters JPC. The cost-effectiveness of bevacizumab, ranibizumab and aflibercept for the treatment of age-related macular degeneration-A cost-effectiveness analysis from a societal perspective. PLoS One 2018; 13:e0197670. [PMID: 29772018 PMCID: PMC5957378 DOI: 10.1371/journal.pone.0197670] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 05/07/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The discussion on the use of bevacizumab is still ongoing and often doctors are deterred from using bevacizumab due to legal or political issues. Bevacizumab is an effective, safe and inexpensive treatment option for neovascular age-related macular degeneration (AMD), albeit unregistered for the disease. Therefore, in some countries ophthalmologists use the equally effective but expensive drugs ranibizumab and aflibercept. We describe the economic consequences of this dilemma surrounding AMD treatment from a societal perspective. METHODS We modelled cost-effectiveness of treatment with ranibizumab (as-needed), aflibercept (bimonthly) and bevacizumab (as-needed). Effectiveness was estimated by systematic review and meta-analysis. The drug with the most favourable cost-effectiveness profile compared to bevacizumab was used for threshold analyses. First, we determined how much we overspend per injection. Second, we calculated the required effectiveness to justify the current price and the reasonable price for a drug leading to optimal vision. Finally, we estimated how much Europe overspends if bevacizumab is not first choice. RESULTS Bevacizumab treatment costs €27,087 per year, about €4,000 less than aflibercept and €6,000 less than ranibizumab. With similar effectiveness for all drugs as shown by meta-analysis, bevacizumab was the most cost-effective. Aflibercept was chosen for threshold analyses. Aflibercept costs €943 per injection, but we determined that the maximum price to be cost-effective is €533. Alternatively, at its current price, aflibercept should yield about twice the visual gain. Even when optimal vision can be achieved, the maximum price for any treatment is €37,453 per year. Most importantly, Europe overspends €335 million yearly on AMD treatment when choosing aflibercept over bevacizumab. CONCLUSION Bevacizumab is the most cost-effective treatment for AMD, yet is not the standard of care across Europe. The registered drugs ranibizumab and aflibercept lead to large overspending without additional health benefits. Health authorities should consider taking steps to implement bevacizumab into clinical practice as first choice.
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Affiliation(s)
- Freekje van Asten
- Department of Ophthalmology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Charlotte T. J. Michels
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Carel B. Hoyng
- Department of Ophthalmology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gert Jan van der Wilt
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - B. Jeroen Klevering
- Department of Ophthalmology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Maroeska M. Rovers
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Janneke P. C. Grutters
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
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Brown G, Yoo J, Brown M, Turpcu A, Rajput Y, Benson W, Brown G, Fineman M, Fischer D, Garg S, Gupta O, Ho A, Hsu J, Kaiser R, Maguire J, Park C, Regillo C, Sivalingam A, Spirn M, Tasman W, Vander J. The Burden of Retinal Venous Occlusion: An Assessment of Fellow Eyes in 1000 Cases. ACTA ACUST UNITED AC 2017; 1:404-412. [DOI: 10.1016/j.oret.2017.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/26/2017] [Accepted: 01/27/2017] [Indexed: 12/15/2022]
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Brown GC, Brown MM, Lieske HB, Turpcu A, Rajput Y. The comparative effectiveness and cost-effectiveness of ranibizumab for neovascular macular degeneration revisited. Int J Retina Vitreous 2017; 3:5. [PMID: 28289548 PMCID: PMC5304393 DOI: 10.1186/s40942-016-0058-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/30/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To compare a near decade of follow-up, newer control cohort data, use of both the societal and third party insurer cost perspectives, and integration of unilateral/bilateral therapy on the comparative effectiveness and cost-effectiveness of intravitreal ranibizumab therapy for neovascular, age-related macular degeneration (AMD). METHODS Value-Based Medicine®, 12-year, combined-eye model, cost-utility analysis employing MARINA and HORIZON clinical trial data. Preference-based comparative effectiveness outcomes were quantified in (1) QALY (quality-adjusted life-year) gain, and (2) percent improvement in quality-of-life, while cost-effectiveness outcomes were quantified in (3) the cost-utility ratio (CUR) and financial return-on-investment (ROI) to society. RESULTS Using MARINA and HORIZON trial data and a meta-analysis control cohort after 24 months, ranibizumab therapy conferred a combined-eye patient value (quality-of-life) gain of 16.3%, versus 10.4% found in 2006. The two-year direct ophthalmic medical cost for ranibizumab therapy was $46,450, a 33.8% real dollar decrease from 2006. The societal cost perspective CUR was -$242,920/QALY, indicating a $282,517 financial return-on-investment (ROI), or 12.3%/year to society for direct ophthalmic medical costs expended. The 3rd party insurer CUR ranged from $21,199/QALY utilizing all direct, medical costs, to $69,591/QALY using direct ophthalmic medical costs. CONCLUSIONS Ranibizumab therapy for neovascular AMD in 2015, considering treatment of both eyes, conferred greater patient value gain (comparative effectiveness) and improved cost-effectiveness than in 2006, as well as a large monetary return-on-investment to the Gross Domestic Product and nation's wealth. The model herein integrates important novel features for neovascular age-related macular degeneration, vitreoretinal cost effectiveness analyses, including: (1) treatment of both eyes, (2) a long-term, untreated control cohort, and (3) the use of societal costs.
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Affiliation(s)
- Gary C. Brown
- The Center for Value-Based Medicine®, Box 6181, Hilton Head, SC 29938 USA
- The Eye Research Institute, Philadelphia, PA USA
- The Retina Service, Wills Eye Institute, Jefferson Medical College, Philadelphia, PA USA
- The Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA USA
| | - Melissa M. Brown
- The Center for Value-Based Medicine®, Box 6181, Hilton Head, SC 29938 USA
- The Eye Research Institute, Philadelphia, PA USA
- The Research Department, Wills Eye Institute, Jefferson Medical College, Philadelphia, PA USA
- The Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA USA
| | - Heidi B. Lieske
- The Center for Value-Based Medicine®, Box 6181, Hilton Head, SC 29938 USA
| | - Adam Turpcu
- The Healthcare Economics Unit, Genentech, Inc., South San Francisco, CA USA
| | - Yamina Rajput
- The Healthcare Economics Unit, Genentech, Inc., South San Francisco, CA USA
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