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Farmer C, Bullement A, Packman D, Long L, Robinson S, Nikram E, Hatswell AJ, Melendez-Torres GJ, Crathorne L. Voretigene Neparvovec for Treating Inherited Retinal Dystrophies Caused by RPE65 Gene Mutations: An Evidence Review Group Perspective of a NICE Highly Specialised Technology Appraisal. PHARMACOECONOMICS 2020; 38:1309-1318. [PMID: 32875526 DOI: 10.1007/s40273-020-00953-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The UK National Institute for Health and Care Excellence (NICE) considered evidence for voretigene neparvovec (VN; Luxturna®) for the treatment of RPE65-mediated inherited retinal dystrophies (IRD) within its highly specialised technology programme. This paper summarises the evidence provided by the company; the appraisal of the evidence by the Peninsula Technology Appraisal Group, who were commissioned to act as the independent evidence review group (ERG); and the development of the NICE guidance by the appraisal committee. The evidence presented by the company highlighted the significant lifelong burden of IRD for patients and carers. Evidence to support the effectiveness of VN was lacking, but the available evidence showed a modest, sustained improvement across a variety of vision-related outcomes. While patients would remain visually impaired, the committee considered that VN would prevent further deterioration in vision. The modelling approach used by the company had a number of limitations and relied heavily upon a large volume of clinical expert input to produce cost-effectiveness estimates with large uncertainty around long-term effectiveness. The ERG's main concerns revolved around these long-term outcomes and the plausibility of utility values. The NICE committee were convinced that the clinical benefits of VN were important and an appropriate use of national health service resources within a specialised service. The committee concluded that a high unmet need existed in patients with RPE65-mediated IRD and that VN represents a step change in the management of this condition.
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Affiliation(s)
- Caroline Farmer
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK.
| | - Ash Bullement
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
- Delta Hat, Ltd., Nottingham, UK
| | - David Packman
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Linda Long
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Sophie Robinson
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Elham Nikram
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Anthony J Hatswell
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
- Delta Hat, Ltd., Nottingham, UK
| | - G J Melendez-Torres
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
| | - Louise Crathorne
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, South Cloisters, St Luke's Campus, Heavitree Road, Exeter, EX1 2LU, UK
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Sahle FF, Kim S, Niloy KK, Tahia F, Fili CV, Cooper E, Hamilton DJ, Lowe TL. Nanotechnology in regenerative ophthalmology. Adv Drug Deliv Rev 2019; 148:290-307. [PMID: 31707052 PMCID: PMC7474549 DOI: 10.1016/j.addr.2019.10.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/18/2022]
Abstract
In recent years, regenerative medicine is gaining momentum and is giving hopes for restoring function of diseased, damaged, and aged tissues and organs and nanotechnology is serving as a catalyst. In the ophthalmology field, various types of allogenic and autologous stem cells have been investigated to treat some ocular diseases due to age-related macular degeneration, glaucoma, retinitis pigmentosa, diabetic retinopathy, and corneal and lens traumas. Nanomaterials have been utilized directly as nanoscaffolds for these stem cells to promote their adhesion, proliferation and differentiation or indirectly as vectors for various genes, tissue growth factors, cytokines and immunosuppressants to facilitate cell reprogramming or ocular tissue regeneration. In this review, we reviewed various nanomaterials used for retina, cornea, and lens regenerations, and discussed the current status and future perspectives of nanotechnology in tracking cells in the eye and personalized regenerative ophthalmology. The purpose of this review is to provide comprehensive and timely insights on the emerging field of nanotechnology for ocular tissue engineering and regeneration.
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Affiliation(s)
- Fitsum Feleke Sahle
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Sangyoon Kim
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Kumar Kulldeep Niloy
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Faiza Tahia
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Cameron V Fili
- Department of Comparative Medicine, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Emily Cooper
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - David J Hamilton
- Department of Comparative Medicine, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Tao L Lowe
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA.
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Huang L, Xiao X, Li S, Jia X, Wang P, Sun W, Xu Y, Xin W, Guo X, Zhang Q. Molecular genetics of cone-rod dystrophy in Chinese patients: New data from 61 probands and mutation overview of 163 probands. Exp Eye Res 2016; 146:252-258. [DOI: 10.1016/j.exer.2016.03.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 12/27/2015] [Accepted: 03/14/2016] [Indexed: 01/17/2023]
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Lyons LA, Creighton EK, Alhaddad H, Beale HC, Grahn RA, Rah H, Maggs DJ, Helps CR, Gandolfi B. Whole genome sequencing in cats, identifies new models for blindness in AIPL1 and somite segmentation in HES7. BMC Genomics 2016; 17:265. [PMID: 27030474 PMCID: PMC4815086 DOI: 10.1186/s12864-016-2595-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/16/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The reduced cost and improved efficiency of whole genome sequencing (WGS) is drastically improving the development of cats as biomedical models. Persian cats are models for Leber's congenital amaurosis (LCA), the most severe and earliest onset form of visual impairment in humans. Cats with innocuous breed-defining traits, such as a bobbed tail, can also be models for somite segmentation and vertebral column development. METHODS The first WGS in cats was conducted on a trio segregating for LCA and the bobbed tail abnormality. Variants were identified using FreeBayes and effects predicted using SnpEff. Variants within a known haplotype block for cat LCA and specific candidate genes for both phenotypes were prioritized by the predicted variant effect on the proteins and concordant segregation within the trio. The efficiency of WGS of a single trio of domestic cats was evaluated. RESULTS A stop gain was identified at position c.577C > T in cat AIPL1, a predicted p.Arg193*. A c.5A > G variant causing a p.V2A was identified in HES7. The variants segregated concordantly in a Persian - Japanese bobtail pedigree. Over 1700 cats from 40 different breeds and populations were genotyped for the AIPL1 variant, defining an allelic frequency in only Persian -related breeds of 1.15%. A sub-set of cats was genotyped for the HES7 variant, supporting the variant as private to the Japanese bobtail breed. Approximately 18 million SNPs were identified for application in cat research. The cat AIPL1 variant would have been considered a high priority variant for evaluation, regardless of a priori knowledge from previous genetic studies. CONCLUSIONS This study represents the first effort of the 99 Lives Cat Genome Sequencing Initiative to identify disease--causing variants in the domestic cat using WGS. The current cat reference assembly is efficient for gene and variant identification. However, as the feline variant database improves, development of cats as biomedical models for human disease will be more efficient, providing an alternative, large animal model for drug and gene therapy trials. Undiagnosed human patients with early-onset blindness should be screened for this AIPL1 variant. The HES7 variant should further calibrate the somite segmentation clock.
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Affiliation(s)
- Leslie A. Lyons
- />Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 1600 E. Rollins Street, Columbia, MO 65211 USA
| | - Erica K. Creighton
- />Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 1600 E. Rollins Street, Columbia, MO 65211 USA
| | - Hasan Alhaddad
- />College of Science, Kuwait University, Safat, 13060 Kuwait
| | | | - Robert A. Grahn
- />Veterinary Genetics Laboratory, School of Veterinary Medicine, University of California - Davis, Davis, CA 95616 USA
| | - HyungChul Rah
- />Graduate School of Health Science Business Convergence, College of Medicine, Chungbuk National University, Chongju, Chungbuk Province 28644 South Korea
| | - David J. Maggs
- />Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, Davis, CA 95616 USA
| | - Christopher R. Helps
- />Langford Veterinary Services, University of Bristol, Langford, Bristol, BS40 5DU UK
| | - Barbara Gandolfi
- />Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 1600 E. Rollins Street, Columbia, MO 65211 USA
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Suratanee A, Plaimas K. DDA: A Novel Network-Based Scoring Method to Identify Disease-Disease Associations. Bioinform Biol Insights 2015; 9:175-86. [PMID: 26673408 PMCID: PMC4674013 DOI: 10.4137/bbi.s35237] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/11/2015] [Accepted: 11/14/2015] [Indexed: 12/15/2022] Open
Abstract
Categorizing human diseases provides higher efficiency and accuracy for disease diagnosis, prognosis, and treatment. Disease–disease association (DDA) is a precious information that indicates the large-scale structure of complex relationships of diseases. However, the number of known and reliable associations is very small. Therefore, identification of DDAs is a challenging task in systems biology and medicine. Here, we developed a novel network-based scoring algorithm called DDA to identify the relationships between diseases in a large-scale study. Our method is developed based on a random walk prioritization in a protein–protein interaction network. This approach considers not only whether two diseases directly share associated genes but also the statistical relationships between two different diseases using known disease-related genes. Predicted associations were validated by known DDAs from a database and literature supports. The method yielded a good performance with an area under the curve of 71% and outperformed other standard association indices. Furthermore, novel DDAs and relationships among diseases from the clusters analysis were reported. This method is efficient to identify disease–disease relationships on an interaction network and can also be generalized to other association studies to further enhance knowledge in medical studies.
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Affiliation(s)
- Apichat Suratanee
- Department of Mathematics, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand
| | - Kitiporn Plaimas
- Integrative Bioinformatics and System Biology Group, Advanced Virtual and Intelligent Computing (AVIC) Research Center, Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Xiang L, Xiao L, Gou Z, Li M, Zhang W, Wang H, Feng P. Survey of Attitudes and Ethical Concerns Related to Gene Therapy Among Medical Students and Postgraduates in China. Hum Gene Ther 2015; 26:841-9. [PMID: 26414282 DOI: 10.1089/hum.2015.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Gene therapy is becoming an important treatment modality for gravely ill patients, and today's medical students and postgraduates are both potential consumers and future providers of gene therapy. Therefore, their attitudes and concerns about gene therapy may directly influence its long-term development and implementation in the clinic. We performed a cross-sectional survey of medical students and postgraduates at West China Medical School of Sichuan University. A custom-designed questionnaire was distributed to 600 students, and 579 were valid (96.98% response). Most respondents (84.46%) indicated little prior knowledge about gene therapy. The proportion of respondents considering gene therapy as acceptable ranged from 63.73% for serious illness to 17.72% for genetic enhancement. Adverse side effects were the most frequent concern among respondents when asked to imagine that they would receive gene therapy to treat a severe brain-related illness. These results suggest that medical students in China consider gene therapy's acceptability to be rather low, and are most concerned about its adverse side effects.
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Affiliation(s)
- Liangcheng Xiang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Lihong Xiao
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Zhongping Gou
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Mei Li
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Wei Zhang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Haiping Wang
- 1 West China School of Public Health, Sichuan University , Chengdu, Sichuan, People's Republic of China
| | - Ping Feng
- 2 Institute of Clinical Trials, West China Hospital, Sichuan University , Chengdu, Sichuan, People's Republic of China
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