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Pascual Carrasco Á, Espadas García I, Ramírez López A, Selva Otaolaurruchi J. [Translated article] Syringes for intraocular administration: A systematic review. FARMACIA HOSPITALARIA 2024; 48:T133-T140. [PMID: 38705829 DOI: 10.1016/j.farma.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 05/07/2024] Open
Abstract
OBJECTIVE The off-label use in clinical practice of non-approved syringes for intravitreal drug administration has resulted in the detection of silicone oil drops in the vitreous of some patients. This situation derives from the lack of approved syringes for intraocular use in the Spanish market. The aim of this work is to review the use of syringes for intraocular administration, as well as to search for alternatives that meet the legal requirements for these unmet needs. METHOD A systematic review was performed following the PRISMA 2020 guidelines by searching PubMed with the descriptors: (silicone) AND (syringes) AND ((intraocular) OR (intravitreal)) and filtering all existing publications from January 2006 to December 2023, including all those articles dealing with silicone oil release in intravitreal injections and analysing the possible consequences. RESULTS Sixty-eight results were found, 23 of which were excluded because they did not deal with the subject under study, leaving a total of 45 articles for the systematic review. These were classified according to the conclusions obtained in 4 groups: the adverse reactions produced by silicone; the administration technique; the physicochemical aspects of silicone release; and the characteristics of the medical device. After reviewing the current manufacturers and technical data sheets of commercialised syringes, the existing syringes for this use have been collected, finding 2 that will probably be commercialised in Spain at the beginning of 2024: Zero Residual™ 0.2 ml SiO-free and VitreJect® Ophthalmic. CONCLUSIONS From the results obtained, it can be interpreted that the use of syringes and needles with silicone for intravitreal use is a concern for health professionals due to the implications and consequences that may arise in patients, the most important being adverse reactions, so it is necessary to have silicone-free syringes on the market that are specific for intraocular use. Safety and legality in the use of intraocular syringes and needles is essential to guarantee ocular integrity and patient health.
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Affiliation(s)
| | | | - Ana Ramírez López
- Servicio de Farmacia, Hospital General Universitario Doctor Balmis, Alicante, Spain
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Pascual Carrasco Á, Espadas García I, Ramírez López A, Selva Otaolaurruchi J. Syringes for intraocular administration: Systematic review. FARMACIA HOSPITALARIA 2024; 48:133-140. [PMID: 38556370 DOI: 10.1016/j.farma.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVE The off-label use in clinical practice of non-approved syringes for intravitreal drug administration has resulted in the detection of silicone oil drops in the vitreous of some patients. This situation derives from the lack of approved syringes for intraocular use in the Spanish market. The aim of this work is to review the use of syringes for intraocular administration, as well as to search for alternatives that meet the legal requirements for these unmet needs. METHOD A systematic review was performed following the PRISMA 2020 Guidelines by searching PubMed with the descriptors: "silicone" AND "syringes" AND ("intraocular" OR "intravitreal") and filtering all existing publications from January 2006 to December 2023, including all those articles dealing with silicone oil release in intravitreal injections and analysing the possible consequences. RESULTS Sixty-eight results were found, 23 of which were excluded because they did not deal with the subject under study, leaving a total of 45 articles for the systematic review. These were classified according to the conclusions obtained in 4 groups: the adverse reactions produced by silicone, the administration technique, the physicochemical aspects of silicone release, and the characteristics of the medical device. After reviewing the current manufacturers and technical data sheets of commercialized syringes, the existing syringes for this use have been collected, finding two that will probably be commercialized in Spain at the beginning of 2024: Zero Residual™ 0.2 ml SiO-free and VitreJect® Ophthalmic. CONCLUSIONS From the results obtained, it can be interpreted that the use of syringes and needles with silicone for intravitreal use is a concern for health professionals due to the implications and consequences that may arise in patients, the most important being adverse reactions, so it is necessary to have silicone-free syringes on the market that are specific for intraocular use. Safety and legality in the use of intraocular syringes and needles is essential to guarantee ocular integrity and patient health.
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Affiliation(s)
| | - Isabel Espadas García
- Servicio de Farmacia, Hospital General Universitario Doctor Balmis, Alicante, España
| | - Ana Ramírez López
- Servicio de Farmacia, Hospital General Universitario Doctor Balmis, Alicante, España
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Bijon J, Freund KB. Silicone Oil From Syringes-A Potentially Overlooked Issue for Intravitreal Injections-Reply. JAMA Ophthalmol 2024; 142:162. [PMID: 38175624 DOI: 10.1001/jamaophthalmol.2023.5999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
| | - K Bailey Freund
- NYU Grossman School of Medicine, New York, New York
- Vitreous Retina Macula Consultants of New York, New York, New York
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Melo GB, Maia M, Belfort R. Silicone Oil From Syringes-A Potentially Overlooked Issue for Intravitreal Injections. JAMA Ophthalmol 2024; 142:161-162. [PMID: 38175634 DOI: 10.1001/jamaophthalmol.2023.5796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
| | - Maurício Maia
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
- Vitreoretinal Surgery Unit, Brazilian Institute of Fight Against Blindness, Assis/Presidente Prudente, Brazil
| | - Rubens Belfort
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
- IPEPO, Vision Institute, São Paulo, Brazil
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Melo GB, Emerson GG. Anti-complement drugs for the treatment of geographic atrophy and the release of silicone oil. Int J Retina Vitreous 2024; 10:3. [PMID: 38183130 PMCID: PMC10768155 DOI: 10.1186/s40942-023-00523-3] [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: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/07/2024] Open
Abstract
Intravitreal injections are a common procedure in ophthalmology, often using syringes coated with silicone to aid piston movement and needles coated with silicone oil to facilitate penetration of the sclera. Pegcetacoplan and avacincaptad pegol, recently approved for clinical use by the US Food and Drug Administration, have higher viscosity and seem more susceptible to entrap air bubbles compared to anti-VEGF drugs.It is plausible that both anti-complement drugs could be associated with a higher likelihood of introducing silicone oil in the vitreous because of higher viscosity, with potentially higher friction at the inner surface of syringe barrel, in the vicinity of silicone oil. In addition to this, undesirable agitation might be inadvertently promoted by some retina specialists to remove air bubbles from the drug solution.In conclusion, recent reports of silicone oil droplets in the vitreous of patients receiving pegcetacoplan injection might be related to both its viscosity and to agitation of the syringe to remove air bubbles. Since avacincaptad pegol also is viscous, though with different pH, syringe and filter needle, we might expect similar reports for this agent soon. We also recommend further studies be carried not only to clarify the current matter but also the potential association between the combination of agitation, silicone oil and inflammation or any immune response.
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Affiliation(s)
- Gustavo Barreto Melo
- Department of Ophthalmology, Federal University of São Paulo, Rua Botucatu, 820, São Paulo, Brazil.
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Agra LLM, Sverstad A, Chagas TA, Araújo RH, Oliveira LG, Kristianslund O, Petrovski G, Maia M, Moe MC, Jørstad ØK, Melo GB. Accuracy, Precision, and Residual Volume of Commonly Used Syringes for Intravitreal Injections and the Impact on Intraocular Pressure. Ophthalmol Retina 2023; 7:892-900. [PMID: 37302655 DOI: 10.1016/j.oret.2023.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
PURPOSE To compare accuracy, precision, and residual volume of commonly used syringes for intravitreal injections (IVIs) and to assess the intraocular pressure (IOP) rise by variations in volumes delivered. DESIGN Experimental laboratory study. SUBJECTS No subjects were involved in this study. METHODS We tested 8 syringe models with 2 different needle setups, with 2 different solutions (distilled water or glycerin) and target volumes (50 and 70 μL). To obtain the delivered and residual volumes, we weighed the syringe-needle setups with scale before liquid withdrawal, with liquid, and after liquid release. We also created an experimental eye model to determine the transient rise in IOP following stepwise 10-μL increases in injection volumes. MAIN OUTCOME MEASURES Delivered and residual volumes, IOP rise. RESULTS We tested a total of 600 syringe-needle setups. Becton Dickinson (BD) Ultra-Fine (0.34 ± 0.28 μL), Zero Residual (1.53 ± 1.15 μL), and Zero Residual Silicone Oil-free (1.40 ± 1.16 μL) syringes showed the lowest residual volume (P < 0.001) in comparison with the others (range: 24.86 ± 1.78 μL for Injekt-F to 51.97 ± 3.37 μL for Omnifix-F). The most accurate setups were (percentage deviation from target volume): Zero Residual Silicone Oil-free (+ 0.70%), Zero Residual 0.3 ml (+ 4.49%), BD Ultra-Fine (+ 7.83%), Injekt-F (9.42%), Norm-Ject (+ 15.88%), Omnifix-F (+ 16.96%), BD Plastipak Brazil (+17.96%), and BD Plastipak Spain syringes (+ 19.41%). There was a statistically significant difference between the Zero Residual Silicone Oil-free syringe and all other syringes (P < 0.0001), except for the Zero Residual 0.3-ml syringe (P = 0.029). The coefficient of variation was low for all syringes. The modeled IOP rise ranged from 32.3 (standard deviation [SD], 1.4) mmHg for 20-μL injection volume to 76.5 (SD, 1.0) mmHg for 80-μL injection volume. For the standard 50-μL injection volume, the peak pressure was 50.7 (SD, 0.1) mmHg, and the pressure rise duration was 28 (SD, 2) minutes. CONCLUSIONS There were significant differences in accuracy and residual volume between syringes, whereas they showed a high precision. Volume excess results in a considerable increase in IOP rise after injection. These findings may provide a relevant overview to clinicians and to both device and drug manufacturers regarding pharmacoeconomic, safety, and efficacy issues. 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)
- Lydianne L M Agra
- Hospital de Olhos de Sergipe, Aracaju, Brazil; Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | - Alexander Sverstad
- Department of Ophthalmology, Oslo University Hospital and Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | | | | | - Olav Kristianslund
- Department of Ophthalmology, Oslo University Hospital and Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Goran Petrovski
- Department of Ophthalmology, Oslo University Hospital and Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, Split, Croatia
| | - Maurício Maia
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | - Morten Carsten Moe
- Department of Ophthalmology, Oslo University Hospital and Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Øystein Kalsnes Jørstad
- Department of Ophthalmology, Oslo University Hospital and Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Gustavo Barreto Melo
- Hospital de Olhos de Sergipe, Aracaju, Brazil; Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
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Physicochemical and Biological Stability Assessment of SB11 (Ranibizumab Biosimilar) Under Ambient and In-Use Storage for Intravitreal Administration. Ophthalmol Ther 2023; 12:985-998. [PMID: 36607595 PMCID: PMC10011347 DOI: 10.1007/s40123-022-00645-1] [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: 11/09/2022] [Accepted: 12/21/2022] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION SB11 (Byooviz™) is a ranibizumab biosimilar that acts as a vascular endothelial growth factor (VEGF)-A inhibitor. Stability data for unopened SB11 vials at room temperature are limited and no data are available for SB11 withdrawn into syringes (in-use) for intravitreal administration. METHODS SB11 stability was assessed in two different settings: unopened vials stored at 30 ± 2 °C/65 ± 5% relative humidity (RH) for 2 months, and in-use SB11 withdrawn into syringes stored at 5 ± 3 °C for 98 days and then 25 ± 2 °C/60 ± 5% RH for 24 h. The product was stored in the absence of light, and the experimental design followed International Conference on Harmonization and European Medicines Agency requirements for stability evaluation of biological products. Analysis included visual appearance (color, clarity, and presence of visible particles), pH, protein concentration (A280) and purity (size-exclusion high-pressure liquid chromatography, capillary electrophoresis-sodium dodecyl sulfate, imaged capillary isoelectric focusing), biological activity (VEGF binding and neutralization), and safety (sub-visible particulates). RESULTS Except for charge variants in unopened vials at room temperature after 1 month by US standards, all results met the stability acceptance criteria (US and EU) for both unopened vials and for in-use SB11. There were no major changes in terms of physicochemical stability, biological activity and sub-visible particulates. CONCLUSION SB11 was stable for longer periods and at higher temperatures than what is stated in the labels of the reference product (Lucentis) and SB11. The physicochemical properties, biological activity, and sub-visible particulates of SB11 in both tested settings (unopened vials at room temperature and in-use product withdrawn into syringes) were maintained under the described storage periods. This information can help to avoid unnecessary delays in patient treatment without any loss in quality and biological activity, lower the workload of health care providers and reduce costs associated with drug waste.
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Hada S, Na KJ, Jeong J, Choi DH, Kim NA, Jeong SH. Evaluation of subvisible particles in human immunoglobulin and lipid nanoparticles repackaged from a multi-dose vial using plastic syringes. Int J Biol Macromol 2023; 232:123439. [PMID: 36716845 DOI: 10.1016/j.ijbiomac.2023.123439] [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: 09/05/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023]
Abstract
The multi-dose vial (MDV) is widely used for most biopharmaceuticals that are repackaged in plastic syringes before use. However, subvisible particle formation with the use of plastic syringes containing silicone oil (SO syringes) for handling therapeutic proteins can be problematic. This study aimed to evaluate the extent of and trends in microparticle (>1 μm) formation and accumulation in repackaged syringes from MDVs containing human immunoglobulin (IgG) and lipid nanoparticles (LNPs). Light obscuration (LO) and flow imaging (FI) were used to analyze the microparticles. The number of microparticles observed with the use SO syringes was greater than that with SO-free syringes, and the number of microparticles continuously increased as did the number of times of repackaging in syringes for both drugs. However, a large variation was observed across different brands of SO syringes. In contrast, using a different technique of drug withdrawal from the vial significantly reduced the number of microparticles. Furthermore, the use of filter-integrated needles or the inclusion of stabilizers such as acetyl-arginine and Tween 20 into the formulation also helped reduce particle formation.
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Affiliation(s)
- Shavron Hada
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Kyung Jun Na
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Junoh Jeong
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
| | - Du Hyung Choi
- Department of Pharmaceutical Engineering, Inje University, Gyeongnam 621-749, Republic of Korea; College of Pharmacy, Daegu Catholic University, Gyeongsan, Gyeongbuk 38430, Republic of Korea.
| | - Nam Ah Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea; College of Pharmacy, Mokpo National University, Jeonnam 58554, Republic of Korea.
| | - Seong Hoon Jeong
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
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Wong M, Parsi K, Myers K, De Maeseneer M, Caprini J, Cavezzi A, Connor DE, Davies AH, Gianesini S, Gillet JL, Grondin L, Guex JJ, Hamel-Desnos C, Morrison N, Mosti G, Orrego A, Partsch H, Rabe E, Raymond-Martimbeau P, Schadeck M, Simkin R, Tessari L, Thibault PK, Ulloa JH, Whiteley M, Yamaki T, Zimmet S, Kang M, Vuong S, Yang A, Zhang L. Sclerotherapy of lower limb veins: Indications, contraindications and treatment strategies to prevent complications - A consensus document of the International Union of Phlebology-2023. Phlebology 2023; 38:205-258. [PMID: 36916540 DOI: 10.1177/02683555231151350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
BACKGROUND Sclerotherapy is a non-invasive procedure commonly used to treat superficial venous disease, vascular malformations and other ectatic vascular lesions. While extremely rare, sclerotherapy may be complicated by serious adverse events. OBJECTIVES To categorise contraindications to sclerotherapy based on the available scientific evidence. METHODS An international, multi-disciplinary panel of phlebologists reviewed the available scientific evidence and developed consensus where evidence was lacking or limited. RESULTS Absolute Contraindications to sclerotherapy where the risk of harm would outweigh any benefits include known hypersensitivity to sclerosing agents; acute venous thromboembolism (VTE); severe neurological or cardiac adverse events complicating a previous sclerotherapy treatment; severe acute systemic illness or infection; and critical limb ischaemia. Relative Contraindications to sclerotherapy where the potential benefits of the proposed treatment would outweigh the risk of harm or the risks may be mitigated by other measures include pregnancy, postpartum and breastfeeding; hypercoagulable states with risk of VTE; risk of neurological adverse events; risk of cardiac adverse events and poorly controlled chronic systemic illness. Conditions and circumstances where Warnings and Precautions should be considered before proceeding with sclerotherapy include risk of cutaneous necrosis or cosmetic complications such as pigmentation and telangiectatic matting; intake of medications such as the oral contraceptive and other exogenous oestrogens, disulfiram and minocycline; and psychosocial factors and psychiatric comorbidities that may increase the risk of adverse events or compromise optimal treatment outcomes. CONCLUSIONS Sclerotherapy can achieve safe clinical outcomes provided that (1) patient-related risk factors and in particular all material risks are (1a) adequately identified and the risk benefit ratio is clearly and openly discussed with treatment candidates within a reasonable timeframe prior to the actual procedure; (1b) when an individual is not a suitable candidate for the proposed intervention, conservative treatment options including the option of 'no intervention as a treatment option' are discussed; (1c) complex cases are referred for treatment in controlled and standardised settings and by practitioners with more expertise in the field; (1d) only suitable individuals with no absolute contraindications or those with relative contraindications where the benefits outweigh the risks are offered intervention; (1e) if proceeding with intervention, appropriate prophylactic measures and other risk-mitigating strategies are adopted and appropriate follow-up is organised; and (2) procedure-related risk factors are minimised by ensuring the treating physicians (2a) have adequate training in general phlebology with additional training in duplex ultrasound, procedural phlebology and in particular sclerotherapy; (2b) maintain their knowledge and competency over time and (2c) review and optimise their treatment strategies and techniques on a regular basis to keep up with the ongoing progress in medical technology and contemporary scientific evidence.
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Affiliation(s)
- Mandy Wong
- Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Kurosh Parsi
- Department of Dermatology, St Vincent's Hospital, Sydney, Darlinghurst, NSW, Australia.,Faculty of Medicine, 7800University of New South Wales, Sydney, NSW, Australia.,Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia.,Australasian College of Phlebology, Chatswood, NSW, Australia
| | - Kenneth Myers
- Australasian College of Phlebology, Chatswood, NSW, Australia
| | | | - Joseph Caprini
- University of Chicago Pritzker School of Medicine, Chicago, IL, USA
| | | | - David E Connor
- Department of Dermatology, St Vincent's Hospital, Sydney, Darlinghurst, NSW, Australia.,Faculty of Medicine, 7800University of New South Wales, Sydney, NSW, Australia.,Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Alun H Davies
- 4615Department of Surgery & Cancer, Imperial College London, UK
| | - Sergio Gianesini
- Department of Translational Medicine, University of Ferrara, Italy
| | | | | | | | - Claudine Hamel-Desnos
- Department of Vascular Medicine, Saint Martin Private Hospital Ramsay GdS, Caen,France and Paris Saint Joseph Hospital Group, France
| | | | | | | | | | - Eberhard Rabe
- Emeritus, Department of Dermatology, University of Bonn, Germany
| | | | | | - Roberto Simkin
- Faculty of Medicine, 28196University of Buenos Aires, Argentina
| | | | - Paul K Thibault
- Australasian College of Phlebology, Chatswood, NSW, Australia.,Central Vein and Cosmetic Medical Centre, Newcastle, Australia
| | - Jorge H Ulloa
- Hospital Universitario Fundación Santa Fé - Universidad de los Andes, Bogotá, Colombia
| | | | - Takashi Yamaki
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University Adachi Medical Center, Japan
| | | | - Mina Kang
- Department of Dermatology, St Vincent's Hospital, Sydney, Darlinghurst, NSW, Australia.,Faculty of Medicine, 7800University of New South Wales, Sydney, NSW, Australia.,Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Selene Vuong
- Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Anes Yang
- Department of Dermatology, St Vincent's Hospital, Sydney, Darlinghurst, NSW, Australia.,Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Lois Zhang
- Department of Dermatology, St Vincent's Hospital, Sydney, Darlinghurst, NSW, Australia.,Faculty of Medicine, 7800University of New South Wales, Sydney, NSW, Australia.,Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
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da Cruz NFS, Polizelli MU, Muralha FP, de Morais CNL, Junior OMS, Maia M, Melo GB, Farah ME. Ocular inflammation after agitation of siliconized and silicone oil-free syringes: a randomized, double-blind, controlled clinical trial. Int J Retina Vitreous 2022; 8:41. [PMID: 35715871 PMCID: PMC9205077 DOI: 10.1186/s40942-022-00387-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/12/2022] [Indexed: 11/19/2022] Open
Abstract
Background Noninfectious endophthalmitis may be misdiagnosed, leading to serious clinical implications. So far, its causative factors remain unknown. Therefore, this study assessed the role of silicone oil and syringe agitation in the development of inflammation after intravitreal injection of aflibercept. Methods A randomized, double-blind, controlled clinical trial included subjects with an indication of intravitreal antiangiogenic therapy prior to vitrectomy for proliferative diabetic retinopathy. Aflibercept was injected 48 h before surgery. The control group received the injection without agitation, while the intervention group was injected with a previously agitated syringe by flicking with either a siliconized or silicone oil-free syringe. The primary endpoint was the presence of anterior chamber reaction (ACR) at 48 h. Aqueous samples were collected and underwent cytometric bead array analysis for quantification of interleukins and chemokines. Results Forty-one individuals were included (21 in the agitation group and 20 in the no-agitation group). None of the included eyes showed baseline signs of AC cells, hyperemia or pain complaint, while 10% of control group and 80% of agitation group showed AC cells 48 h after injection of aflibercept with SR syringe. There were no differences in the mean variations of all cytokines and chemokines by agitation status. However, there was a marginally significant increase between the mean variations of IP-10 (p = 0.057) and IL-8 (p = 0.058) in the siliconized one. Conclusion This clinical trial discloses a potential role of agitation and siliconized syringes in the development of inflammation after an intravitreal injection of aflibercept. These findings have important clinical implications for all healthcare practitioners who perform intravitreal injections. Trial Registration: Brazilian Registry of Clinical Trials, RBR-95ddhp. Registered 12 May 2019, http://www.ensaiosclinicos.gov.br/rg/RBR-95ddhp/
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Affiliation(s)
| | | | | | | | | | - Mauricio Maia
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Gustavo Barreto Melo
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil. .,Hospital de Olhos de Sergipe, Rua Campo do Brito, 995, São José, Aracaju, SE, 49020-380, Brazil.
| | - Michel Eid Farah
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
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Vojdani A, Shoenfeld YY. Catastrophic Embolism Following Cosmetic Injection of Autologous Fat: Are Silicone-Treated Syringes the Only Suspects on the Crime Scene? Front Surg 2022; 9:867994. [PMID: 35615656 PMCID: PMC9124850 DOI: 10.3389/fsurg.2022.867994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/25/2022] [Indexed: 12/02/2022] Open
Affiliation(s)
- Aristo Vojdani
- Immunosciences Lab. Inc., Los Angeles, CA, United States
- Cyrex Labs LLC, Phoeniz, AZ, United States
- Correspondence: Aristo Vojdani Yehuda Yulius Shoenfeld
| | - Yehuda Yulius Shoenfeld
- Ariel University, Ariel, Samaria, Israel
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Aviv University, Ramat Gan, Israel
- Correspondence: Aristo Vojdani Yehuda Yulius Shoenfeld
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Gjølberg TT, Lode HE, Melo GB, Mester S, Probst C, Sivertsen MS, Jørstad ØK, Andersen JT, Moe MC. A Silicone Oil-Free Syringe Tailored for Intravitreal Injection of Biologics. FRONTIERS IN OPHTHALMOLOGY 2022; 2:882013. [PMID: 38983507 PMCID: PMC11182194 DOI: 10.3389/fopht.2022.882013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/31/2022] [Indexed: 07/11/2024]
Abstract
Intravitreal injections (IVI) of biologics targeting vascular endothelial growth factor (anti-VEGF) led to a paradigm shift in the management and prognosis of prevalent retinal conditions. Yet, IVI are typically performed with syringes that are neither developed nor approved for this purpose. Notably, syringes lubricated with silicone oil (SiO) are extensively used despite multiple reports showing that such syringes can cause deposition of SiO droplets in the vitreous body and patient discomfort. Thus, there is a need for SiO-free substitutes specifically tailored for IVI. Here, we report on the development and testing of such a syringe. This syringe has no dead volume, and its design allows for high-accuracy dosing. Also, it permits pharmaceutical compounding and storage of bevacizumab, ranibizumab, and aflibercept for up to 30 days without compromising their functional binding or transport properties. Finally, the new syringe demonstrated a favorable safety profile regarding release of SiO compared to SiO lubricated alternatives, including commercially prefilled syringes. Accordingly, the newly developed syringe is an appealing alternative for IVI.
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Affiliation(s)
- Torleif T Gjølberg
- Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Department of Pharmacology, Oslo University Hospital and University of Oslo, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Heidrun E Lode
- Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Department of Pharmacology, Oslo University Hospital and University of Oslo, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Gustavo B Melo
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
- Department of Ophthalmology, Hospital de Olhos de Sergipe, Aracaju, Brazil
| | - Simone Mester
- Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Department of Pharmacology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Christine Probst
- Department of Research and Development Sciences, Luminex Corporation, Seattle, WA, United States
| | - Magne S Sivertsen
- Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Øystein K Jørstad
- Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Jan Terje Andersen
- Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Department of Pharmacology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Morten C Moe
- Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
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Kim M, Kim JT. Differences in the incidence of aflibercept-related sterile endophthalmitis according to types of disposable syringes used. Graefes Arch Clin Exp Ophthalmol 2022; 260:1139-1145. [PMID: 34977967 DOI: 10.1007/s00417-021-05454-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 09/15/2021] [Accepted: 10/12/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate the difference between the incidences of sterile endophthalmitis after administration of intravitreal aflibercept injection using two different types of syringes. METHODS We administered a total of 498 intravitreal aflibercept injections between September 2017 and August 2021. The disposable syringe used was changed from a 1-mL disposable syringe (Profi syringe, Shinchang Medical., Ltd. Korea) to a 1-mL Becton Dickenson Luer-Lok syringe (BD, Franklin, NJ, USA) in September 2019. Thus, the patients who received injections before and after September 1, 2019, were classified into group 1 and group 2, respectively. The incidence of aflibercept-related sterile endophthalmitis between the two groups was compared. RESULTS In group 1, six (2.791%) out of 215 cases were diagnosed with sterile endophthalmitis and prescribed topical or oral steroids. In group 2, one (0.353%) out of 283 cases was diagnosed with sterile endophthalmitis and prescribed a steroid eye drop. The incidence of sterile endophthalmitis was significantly different between the two groups (P = 0.046). CONCLUSION The BD Luer-Lok syringe is associated with a lower incidence of aflibercept-related sterile endophthalmitis than the conventional polypropylene syringe. Differences in immunogenicity associated with silicone oil lubricants within the syringes might be one of the potential reasons behind the difference in the incidence of the sterile endophthalmitis.
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Affiliation(s)
- Minjeong Kim
- Department of Ophthalmology, Chung-Ang University College of Medicine, Chung-Ang University Hospital, 102 Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea, #06974
| | - Jee Taek Kim
- Department of Ophthalmology, Chung-Ang University College of Medicine, Chung-Ang University Hospital, 102 Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea, #06974.
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14
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Kovalevskaya MA, Pererva OA, Roldugin AA, Kartamyshev EG. [Potential pitfalls of anti-VEGF therapy of neovascular age-related macular degeneration]. Vestn Oftalmol 2021; 137:149-156. [PMID: 34965081 DOI: 10.17116/oftalma2021137061149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
When administering anti-VEGF therapy for neovascular age-related macular degeneration (nAMD), it is necessary to take into account the fact that treatment outcomes - in addition to factors associated with the disease itself - may be affected by progressive concomitant conditions (for example, macular atrophy) and possible adverse events (AEs). The latter can be divided into two large groups: non-inflammatory and inflammatory. Intraocular inflammation (IOI) is a rare but potentially dangerous AE of anti-VEGF therapy, which can include endophthalmitis, early sterile inflammation and retinal vasculitis. Raising awareness about inflammatory AEs is becoming even more important due to the sheer number of intravitreal injections performed, as well as the frequency of cases of IOI when using new anti-VEGF drugs. The new anti-VEGF drug Brolucizumab is associated with the development of retinal vasculitis, which is considered a type III and IV hypersensitivity reaction (involving cellular and humoral immune responses, respectively). The article presents an overview of publications on the mechanisms, clinical manifestations, differentiation, and methods of treatment of various types of IOI.
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Affiliation(s)
- M A Kovalevskaya
- Voronezh State Medical University named after N.N. Burdenko, Voronezh, Russia
| | - O A Pererva
- Voronezh State Medical University named after N.N. Burdenko, Voronezh, Russia
| | - A A Roldugin
- Voronezh Regional Clinical Ophthalmological Hospital, Voronezh, Russia
| | - E G Kartamyshev
- Voronezh State Medical University named after N.N. Burdenko, Voronezh, Russia
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15
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Melo GB, Cruz NFS, Monte Agra LL, Emerson GG, Lima LH, Linkuviene V, Maia M, Farah ME, Carpenter JF, Rodrigues EB, Probst C. Silicone oil-free syringes, siliconized syringes and needles: quantitative assessment of silicone oil release with drugs used for intravitreal injection. Acta Ophthalmol 2021; 99:e1366-e1374. [PMID: 33890418 DOI: 10.1111/aos.14838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/17/2021] [Accepted: 02/23/2021] [Indexed: 01/04/2023]
Abstract
PURPOSE This study aimed to quantify the amount of silicone oil (SO) released across a variety of syringe and needle models routinely used for intravitreal injection. METHODS The release of SO was assessed in eight models of syringes, two of which were reported to be 'SO-free', and eleven models of needles with unknown SO content. To evaluate SO release within the context of anti-VEGF therapeutics, syringes were evaluated using aflibercept, bevacizumab, buffer, ziv-aflibercept and formulation buffer. All syringe tests were performed with or without agitation by flicking for syringes. Needles were evaluated without agitation only. Samples were fluorescently labelled to identify SO, and triplicate measurements were collected using imaging flow cytometry. RESULTS Seven out of 8 syringe models showed a statistically significant increase in the SO particle count after agitation. The two SO-free syringe models (HSW Norm-Ject, Daikyo Crystal Zenith) released the least SO particles, with or without agitation, whereas the BD Ultra-Fine and Saldanha-Rodrigues syringes released the most. More SO was released when the syringes were prefilled with formulation buffer than with ziv-aflibercept. Syringes filled with aflibercept and bevacizumab had intermediate levels. Agitation increased the release of SO into each of the drug solutions. Silicone oil (SO) was detected in all needles. CONCLUSIONS Agitation of the syringe by flicking leads to a substantial increase in the number of SO particles. Silicone oil (SO)-free syringes had the best performance, but physicians must also be aware that needles are siliconized and also contribute to the injection of SO into the vitreous.
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Affiliation(s)
- Gustavo Barreto Melo
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
- Hospital de Olhos de Sergipe Aracaju Brazil
| | | | - Lydianne Lumack Monte Agra
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
- Hospital de Olhos de Sergipe Aracaju Brazil
| | | | - Luiz H. Lima
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
| | - Vaida Linkuviene
- Department of Pharmaceutical Sciences University of Colorado Denver CO USA
| | - Maurício Maia
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
| | - Michel Eid Farah
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
| | - John F. Carpenter
- Department of Pharmaceutical Sciences University of Colorado Denver CO USA
| | - Eduardo Büchele Rodrigues
- Department of Ophthalmology Federal University of São Paulo São Paulo Brazil
- Department of Ophthalmology Saint Louis University School of Medicine Saint Louis MO USA
| | - Christine Probst
- Department of Research and Development Sciences Luminex Corporation Seattle WA USA
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Sanabria MR, Alonso‐Tarancón AM, Calles‐Monar PS, Ibañez P, García de Arriba S, Alvarez N, Piñuel JA, Coco RM, Fernández I. Silicone microbubbles after anti-vascular endothelial growth factor injections in patients with wet age-related macular degeneration: incidence, quantification and secondary optical coherence tomography artfacts. Acta Ophthalmol 2021; 99:e1051-e1055. [PMID: 33421336 DOI: 10.1111/aos.14743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE To report the incidence and quantity of silicone oil microbubbles and the relationship with the number of intravitreal anti-vascular endothelial growth factor (VEGF) injections and evaluate if microbubbles induce artefacts on optical coherence tomography (OCT) images. METHODS Observational, descriptive, cross-sectional study. Patients with wet age-related macular degeneration were included who had been treated for 1 year minimally with anti-VEGF injections repackaged in the hospital pharmacy. Detection and quantification of silicone microbubbles by mydriatic biomicroscopic examination were conducted 1 month after the last injection. The numbers of microbubbles were quantified on a scale of 0-3: 0, none; 1 scarce (1-10 microbubbles); 2 moderate (10-30); or 3 numerous (>30). Shadowing on OCT images was classified as 0-3: 0, none; 1 obscuring some retinal layers; 2 obscuring all retinal layers; or 3 obscuring the retinal thickness. RESULTS The study included 142 eyes of 98 patients (mean age, 82.4 years + 7.3; range, 65-97) treated with 2377 injections. Microbubbles were detected in 127 (89.4%) eyes, 62 (43.6%) with numerous microbubbles and 36 (25.4%) and 29 (20.4%), respectively, with scarce and moderate numbers. A positive correlation was found between the numbers of injections and intravitreal silicone (rho, 0.7). Optical coherence tomography (OCT) artefacts were detected in 11 eyes; the artefacts obscured all retinal layers in three eyes. No significant relationship could be established between the appearance of floaters and the microbubbles. CONCLUSION The presence and number of silicone microbubbles were correlated with the number of intravitreal injections. Microbubbles can produce OCT artefacts, which can hinder the treatment decision.
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Affiliation(s)
- Maria R. Sanabria
- Palencia University Hospital Complex Palencia Spain
- Institute of Applied Ophthalmobiology University of Valladolid Valladolid Spain
| | | | | | | | | | | | | | - Rosa M. Coco
- Institute of Applied Ophthalmobiology University of Valladolid Valladolid Spain
- OFTARED Health Research Thematic Network Carlos III Health Institute Madrid Spain
| | - Itziar Fernández
- Institute of Applied Ophthalmobiology University of Valladolid Valladolid Spain
- Department of Statistics University of Valladolid Valladolid Spain
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17
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Sivertsen MS, Lode HE, Gjølberg TT, Petrovski G, Andersen JT, Jørstad ØK, Moe MC. Cluster of symptomatic silicone oil droplets following intravitreal injections: a 1-year observational study. BMJ Open Ophthalmol 2021; 6:e000764. [PMID: 34485702 PMCID: PMC8378358 DOI: 10.1136/bmjophth-2021-000764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 08/09/2021] [Indexed: 11/03/2022] Open
Abstract
Objective To describe a cluster of symptomatic intravitreal silicone oil (SiO) droplets following intravitreal injections (IVIs) and assess the effect of switching to a SiO-free syringe. Methods and analysis Observational quality registry study of patients receiving IVI at a large Norwegian ophthalmology centre between April 2018 (start of cluster) and November 2019 (1 year after switching to SiO-free syringes). At onset, anti-vascular endothelial growth factor drugs were administered using SiO-containing insulin syringes. From November 2018, SiO-free syringes were implemented. Spontaneously reported symptomatic SiO cases were confirmed by slit-lamp examination. A follow-up interview was performed after 1 year, assessing visual complaints. The prevalence of non-symptomatic cases was assessed in a sample of 50 eyes from 50 consecutive IVI patients. Results Among 13 429 IVIs, 50 eyes of 46 patients (29 women) with symptomatic intravitreal SiO droplets were identified. Forty-one patients reported floaters at regular appointments, whereas five patients contacted the department regarding symptoms between scheduled appointments. After 1 year, 34 patients (79%) still experienced floaters, 21 (49%) reported reduced symptoms and 3 (7%) reported worsened symptoms. Eighteen patients (42%) reported being bothered, and eight (18.6%) reported that their lives were negatively affected by the floaters. Among 50 non-symptomatic eyes that had received IVI during the same period, intravitreal SiO was found in 34 (68%). No cases of symptomatic intravitreal SiO droplets were identified after switching to SiO-free syringes. Conclusion Symptomatic intravitreal SiO following IVI can cause significant and prolonged distress for affected patients. It can be avoided by using SiO-free syringes.
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Affiliation(s)
| | - Heidrun Elisabeth Lode
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway.,Department of Immunology, Oslo University Hospital, Oslo, Norway.,Department of Pharmacology, University of Oslo, Oslo, Norway
| | - Torleif Tollefsrud Gjølberg
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway.,Department of Immunology, Oslo University Hospital, Oslo, Norway.,Department of Pharmacology, University of Oslo, Oslo, Norway
| | - Goran Petrovski
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
| | - Jan Terje Andersen
- Department of Immunology, Oslo University Hospital, Oslo, Norway.,Department of Pharmacology, University of Oslo, Oslo, Norway
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Lam LA, Mehta S, Lad EM, Emerson GG, Jumper JM, Awh CC. Intravitreal Injection Therapy: Current Techniques and Supplemental Services. JOURNAL OF VITREORETINAL DISEASES 2021; 5:438-447. [PMID: 37008713 PMCID: PMC9976140 DOI: 10.1177/24741264211028441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose: Intravitreal injection is the most frequently performed eye procedure in the world and is an essential component in the management of sight-threating retinal diseases and conditions. Given the seriousness and range of diseases treated and the risks of the procedure, retina specialists must weigh the pros and cons of each individual treatment. Complexities guiding injection treatment are multifaceted and involve patient-history review, careful examination, diagnostic testing selection and interpretation, customized medical decision-making, and follow-up considerations. Methods: This article by the Intravitreal Injection Task Force Committee of the American Society of Retina Specialists documents the intricacies and necessary components of the intravitreal injection procedure. Results: By expert consensus, the task force further recommends ancillary services and decision-making that may accompany intravitreal injection visits, when appropriate, to monitor response to treatment, adjust treatment, and manage additional considerations in the same or fellow eye. Conclusions: Retina specialists can optimize safety and therapeutic outcomes with individualized consideration and customization of intravitreal injection treatment for each patient.
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Affiliation(s)
- Linda A. Lam
- University of Southern California Roski Eye Institute, Keck School of Medicine, Los Angeles, CA, USA
| | - Sonia Mehta
- Wills Eye Hospital/Mid-Atlantic Retina, Philadelphia, PA, USA
| | - Eleonora M. Lad
- Duke Eye Center, Duke University Medical School, Durham, NC, USA
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19
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da Cruz NFS, Agra LLDM, Probst C, Lima LH, Carpenter JF, Maia M, Farah ME, Melo GB. In-vitro assessment of release of silicone oil droplets with the use of variety of syringes and needles used in intravitreal injections. Eur J Ophthalmol 2021; 32:11206721211019580. [PMID: 34024140 DOI: 10.1177/11206721211019580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To assess the variability of silicone oil (SO) particles released across syringes from the same lot and the role of different needle gauges. MATERIALS AND METHODS Four syringe models and six needle models were assessed for SO release. About 50 microliters of a buffer solution were loaded into the syringe, needle or syringe/needle setup. The data were analyzed by imaging flow cytometry with fluorescently labeling for SO. RESULTS All syringe models had a high coefficient of variation in SO release across syringes from the same lot. The amount of SO was significantly greater in the syringe when the needle was attached. SO particles with the BD 30G needle attached to the syringe were statistically greater than the 27G counterpart (p = 0.005). None of the other comparisons was statistically different. Finally, the number of SO particles was higher in the syringe/needle setup than in needles only (p = 0.0024). CONCLUSION We found a high variability in SO content across syringes from the same lot. Additionally, there was no clear association between needle gauge and the number of SO particles, as well as their coefficient of variation. Finally, the needles accounted for a small number of SO particles in comparison to the combined syringe-needle setup.
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Affiliation(s)
| | - Lydianne Lumack do Monte Agra
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
- Hospital de Olhos de Sergipe, Aracaju, SE, Brazil
| | - Christine Probst
- Department of Research and Development Sciences, Luminex Corporation, Seattle, WA, USA
| | - Luiz Henrique Lima
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - John F Carpenter
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Mauricio Maia
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Michel Eid Farah
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Gustavo Barreto Melo
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
- Hospital de Olhos de Sergipe, Aracaju, SE, Brazil
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20
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Anderson WJ, da Cruz NFS, Lima LH, Emerson GG, Rodrigues EB, Melo GB. Mechanisms of sterile inflammation after intravitreal injection of antiangiogenic drugs: a narrative review. Int J Retina Vitreous 2021; 7:37. [PMID: 33962696 PMCID: PMC8103589 DOI: 10.1186/s40942-021-00307-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/28/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Intraocular inflammation is an uncommon but potentially vision-threatening adverse event related to anti-VEGF therapy. This is of increasing importance given both the volume of injections performed, as well as the increased prevalence of inflammation seen with newer anti-VEGF agents. Brolucizumab, the newest anti-VEGF agent, has been associated with an inflammatory retinal vasculitis and the underlying mechanism is unclear. Reviewing potential mechanisms and clinical differences of intraocular inflammation may assist clinicians and scientists in reducing the risk of these events in the future. OBSERVATIONS Two types of inflammation are seen with intravitreal injections, acute onset sterile inflammation and delayed onset inflammatory vasculitis. Acute onset inflammation can be subcategorized into subclinical anterior chamber inflammation and sterile uveitis/endophthalmitis. Subclinical anterior chamber inflammation can occur at rates as high as 19% after intravitreal anti-VEGF injection. Rates of sterile uveitis/endophthalmitis range from 0.05% to 4.4% depending on the anti-VEGF agent. Inflammatory vasculitis is only associated with brolucizumab and occurred in 3.3% of injections according to the post hoc review of the HAWK/HARRIER data. In addition, silicone oil from syringes can induce immunogenic protein aggregates. Agitation of the syringe, freeze thawing, shipping and improper storage prior to injection may increase the amount of silicone oil released from the syringe. CONCLUSION The main factors which play a role in intraocular inflammation after anti-VEGF injection can be divided into three causes: patient-specific, medication-specific and delivery-specific. The majority of clinically significant inflammation seen after intravitreal injection is an acute onset inflammatory response with most patients recovering baseline VA in 3-5 weeks. The presence of pain, hypopyon, severe anterior chamber reaction, hyperemia and significant vision loss may help distinguish infectious from non-infectious etiologies of post injection inflammation. Avoiding temperature fluctuation, mechanical shock, agitation during transport and handling of syringes/drugs, and the use of SO-free syringes may help minimize intraocular inflammation. While a definitive mechanism has not yet been established, current knowledge of the clinical presentation and vitreous histopathology of brolucizumab-retinal vasculitis favors an auto-immune type IV hypersensitivity reaction.
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Affiliation(s)
- William J Anderson
- Department of Ophthalmology, Saint Louis University School of Medicine, Saint Louis, MO, USA
| | | | - Luiz Henrique Lima
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | | | - Eduardo Büchele Rodrigues
- Department of Ophthalmology, Saint Louis University School of Medicine, Saint Louis, MO, USA.,Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | - Gustavo Barreto Melo
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil. .,Hospital de Olhos de Sergipe, Rua Campo Do Brito, 995, Aracaju, SE, 49020-380, Brazil.
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21
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Bisorca-Gassendorf L, Januschowski K, Pérez Guerra N, Szurman P, Rickmann A. [Silicone oil droplets in the vitreous body after intravitreal injection]. Ophthalmologe 2021; 119:392-394. [PMID: 33687491 DOI: 10.1007/s00347-021-01358-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/02/2021] [Accepted: 02/16/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Lukas Bisorca-Gassendorf
- Augenklinik Sulzbach, Knappschaftsklinikum Saar GmbH, An der Klinik 10, 66280, Sulzbach, Deutschland.
| | - Kai Januschowski
- Augenklinik Sulzbach, Knappschaftsklinikum Saar GmbH, An der Klinik 10, 66280, Sulzbach, Deutschland
| | - Núria Pérez Guerra
- Augenklinik Sulzbach, Knappschaftsklinikum Saar GmbH, An der Klinik 10, 66280, Sulzbach, Deutschland
| | - Peter Szurman
- Augenklinik Sulzbach, Knappschaftsklinikum Saar GmbH, An der Klinik 10, 66280, Sulzbach, Deutschland
| | - Annekatrin Rickmann
- Augenklinik Sulzbach, Knappschaftsklinikum Saar GmbH, An der Klinik 10, 66280, Sulzbach, Deutschland
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22
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Prospective Study of Silicone Oil Microdroplets in Eyes Receiving Intravitreal Anti-Vascular Endothelial Growth Factor Therapy in 3 Different Syringes. ACTA ACUST UNITED AC 2021; 5:234-240. [DOI: 10.1016/j.oret.2020.07.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 11/23/2022]
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23
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Huet F, Miller J, Miller PE, Hayden C, Glick JJ, Bentley A, De Benedetto C, McPherson LE, Turner OC. Observation of Silicone Oil Within the Vitreous and Sclera Following Intravitreal Administration of Biotherapeutics Using Insulin Syringes in Cynomolgus Monkeys. Toxicol Pathol 2020; 49:590-597. [PMID: 33272095 DOI: 10.1177/0192623320966543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Silicone oil droplets have been reported in the eyes of human patients following intravitreous (IVT) injections with several marketed biotherapeutic products. Intravitreous administration of a novel biotherapeutic in a 14-week cynomolgus monkey study using insulin syringes was associated with 2, non-test-article-related phenomena: "vitreous floater/clear sphere" on indirect ophthalmoscopy and intrascleral "foreign material near injection track" on histopathology. Retrospective analysis of 81 other preclinical studies of IVT administration of novel biotherapeutics found a greater frequency of clear spheres in monkey IVT studies using insulin syringes and formulations containing polysorbate. We were able to correlate microscopic findings of clear circular to oval areas in the sclera near the injection track with an energy-dispersive X-ray spectroscopy (EDS) signal for silicon at the same location in the sclera. These observations provide further evidence that silicone lubricant in insulin syringes/needles is the source of clear spheres noted in the vitreous and foreign material noted near the injection track in the sclera. Although considered inert and toxicologically insignificant, silicone deposition within the eye should form part of the risk-benefit equation in a clinical setting.
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Affiliation(s)
- François Huet
- Novartis, 33413Novartis Institutes for BioMedical Research, Preclinical Safety, Cambridge, MA, USA
| | | | - Paul E Miller
- 70738School of Veterinary Medicine, University of Wisconsin-Madison, WI, USA.,OSOD LLC, Madison, WI, USA
| | - Chris Hayden
- Novartis, 98557Novartis Institutes for BioMedical Research, Preclinical Safety, East Hanover, NJ, USA
| | - James J Glick
- Novartis, 98557Novartis Institutes for BioMedical Research, PK Sciences, East Hanover, NJ, USA
| | - Adam Bentley
- Novartis, 98557Novartis Institutes for BioMedical Research, PK Sciences, East Hanover, NJ, USA
| | - Chris De Benedetto
- Novartis, 98557Novartis Institutes for BioMedical Research, Preclinical Safety, East Hanover, NJ, USA
| | | | - Oliver C Turner
- Novartis, 98557Novartis Institutes for BioMedical Research, Preclinical Safety, East Hanover, NJ, USA
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Advanced Characterization of Silicone Oil Droplets in Protein Therapeutics Using Artificial Intelligence Analysis of Imaging Flow Cytometry Data. J Pharm Sci 2020; 109:2996-3005. [DOI: 10.1016/j.xphs.2020.07.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/07/2020] [Accepted: 07/07/2020] [Indexed: 12/21/2022]
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Kim NA, Kim DJ, Jeong SH. Do not flick or drop off-label use plastic syringes in handling therapeutic proteins before administration. Int J Pharm 2020; 587:119704. [DOI: 10.1016/j.ijpharm.2020.119704] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/08/2020] [Accepted: 07/25/2020] [Indexed: 12/28/2022]
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Abrahams C, Melo GB, Wambier CG. Silicone-rich syringes can cause granuloma-rich reactions in platelet-rich plasma injections. JAAD Case Rep 2020; 6:751-752. [PMID: 32715070 PMCID: PMC7369602 DOI: 10.1016/j.jdcr.2020.06.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Casey Abrahams
- Department of Dermatology, Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Gustavo Barreto Melo
- Hospital de Olhos de Sergipe, Aracaju-SE, Brazil.,Department of Ophthalmology, Federal University of São Paulo, São Paulo-SP, Brazil
| | - Carlos Gustavo Wambier
- Department of Dermatology, Warren Alpert Medical School of Brown University, Providence, Rhode Island
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Agitation of the syringe and release of silicone oil. Eye (Lond) 2020; 34:2242-2248. [PMID: 32127655 DOI: 10.1038/s41433-020-0800-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 12/03/2019] [Accepted: 12/10/2019] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND/OBJECTIVES To investigate whether agitation promotes the release of silicone oil by different models of syringe used for intravitreal injection. METHODS This lab study analyzed eight syringe models by light microscopy for the release of silicone oil under agitation (flick), without agitation, and positive controls. Fourier-Transform Infrared Spectroscopy (FTIR) was performed to identify the molecular compounds inside the syringes. RESULTS A total of 240 syringes were analyzed. The presence of silicone oil droplets was observed in all positive controls. When agitated by flicking, 100% of the samples of the syringes disclosed silicone oil, except the BD Plastipak syringe, which presented 40% of positivity. Without agitation, a smaller percentage of samples with silicone oil was observed. Agitation by flicking had a 265-fold greater chance of presenting oil droplets when compared with the syringes without agitation. There was a statistically significant difference between the three conditions (P < 0.05). Analysis of the tip of the plunger rubber by FTIR indicated the presence of polysiloxane (silicone oil) in all models of syringe. CONCLUSIONS Agitation of the syringe promotes the release of silicone oil. It is recommended to improve the technique of injection and the manufacture of specific syringes for ophthalmological use.
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A new method for pharmaceutical compounding and storage of anti-VEGF biologics for intravitreal use in silicone oil-free prefilled plastic syringes. Sci Rep 2019; 9:18021. [PMID: 31792234 PMCID: PMC6888834 DOI: 10.1038/s41598-019-54226-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/06/2019] [Indexed: 12/27/2022] Open
Abstract
Intravitreal injections of antibody-based biologics targeting vascular endothelial growth factor (VEGF) are highly effective and have markedly decreased the risk of visual impairment associated with prevalent retinal diseases, such as neovascular age-related macular degeneration and diabetes macular oedema. The diseases are chronic in their nature, and most patients need long-term therapy to suppress disease activity. We previously reported a compounding method for repackaging and storage of aflibercept (Eylea), a commonly used anti-VEGF biologic, in silicone oil-coated plastic syringes without compromising drug stability or activity. In addition to improving safety and time spent per patient, compounding of anti-VEGF biologics enables single-dose vials to be split into multiple syringes, thereby considerably reducing waste and drug expenses. However, symptomatic silicone oil droplets may deposit in the eye’s vitreous body after repetitive injections. To fully avoid this complication, we here report on a novel pharmaceutical compounding method using silicone oil-free syringes and a 33 G × 9 mm Low Dead Space Needle hub injection needle. We evaluate the method for three anti-VEGF biologics commonly used in ophthalmology: aflibercept, ranibizumab (Lucentis) and bevacizumab (Avastin). Our results show that compounding and storage for one week does not compromise the functional activity of the biologics and allows for safe and cost-effective compounding of anti-VEGF biologics for intravitreal injections in prefilled silicone oil-free syringes.
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Melo GB, Dias Junior CDS, Morais FB, Cardoso AL, Figueiredo AGA, Lima Filho AAS, Rodrigues EB, Emerson GG, Maia M. Prevalence of silicone oil droplets in eyes treated with intravitreal injection. Int J Retina Vitreous 2019; 5:34. [PMID: 31528356 PMCID: PMC6737593 DOI: 10.1186/s40942-019-0184-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/05/2019] [Indexed: 11/10/2022] Open
Abstract
Objective To assess the number of eyes with silicone oil in the vitreous after intravitreal injection. Methods This cross-sectional, comparative study was divided into 2 groups: (1) treatment—eyes subjected to antiangiogenic therapy; (2) control—no history of intravitreal injection. Subjects were assessed regarding age, gender, clinical diagnosis, lens status, visual acuity and number of previous intravitreal injections. All eyes underwent a meticulous slit-lamp and ultrasound examination for the identification of silicone oil. ImageJ software was used to quantify the index of silicone oil (IOS) by ultrasonography. Results Sixty-seven eyes (30 controls, 37 treated) were included. Slit-lamp examination found silicone oil droplets in 25 out of 37 (67.57%) treated eyes and in none of the control group. Ultrasonography identified silicone oil in 28 out of 37 (75.68%) treated eyes and in 1 out of 30 (3.33%) controls. An observed agreement of 85.07% and a Cohen’s Kappa coefficient of 69.10% (p < 0.0001) between ultrasonography and biomicroscopy were found. Wilcoxon test showed a statistically significant difference (p = 0.0006) in IOS between controls (0.41 ± 0.43%) and treated eyes (2.69 ± 2.55%). Spearman’s correlation test (0.61; p < 0.0001) showed that the greater the number of injections, the higher the IOS. Conclusions Silicone oil droplets were found in the majority of the eyes previously treated with antiangiogenic intravitreal injection. The greater the number of injections, the higher the likelihood of finding silicone oil. An improvement in the technique of injection and better-quality syringes post-injection silicone oil droplets.
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