scholarly journals Pharmaceutical treatment of primary open angle glaucoma

2021 ◽  
Vol 2 (1) ◽  
pp. 8-17
Author(s):  
Mashael Al-Namaeh

Background: Glaucoma is a progressive, irreversible optic neuropathy that results in serious vision loss and blindness. This review aimed to summarize key concepts of primary open angle glaucoma (POAG) pharmaceutical treatment trials over the last decade. Methods: We searched PubMed/MEDLINE and clinicaltrials.gov from January 1, 2010, to August 31, 2020, using the key words “POAG” and “Ocular topical therapeutics”. This search yielded 77 and 120 papers, respectively. Results: Thirty-three records were compatible with our inclusion criteria. Pharmaceutical treatment is a common intervention in POAG for lowering IOP. Prostaglandin (PG) analogues are most commonly recommended as initial medical therapy, which are administrated either as a monotherapy or in combination with other IOP-lowering classes of medications. Alternative therapies, such as ?-blockers, ?-2 adrenergic receptor agonists, and topical carbonic anhydrase inhibitors, have been used in combination or as a monotherapy. Rho-kinase inhibitors, such as netarsudil 0.02%, AR-13324 0.02%, and ripasudil are new IOP-lowering medications. Despite IOP reduction, there is a significant number of patients with POAG that may experience disease progression, and the risk of blindness over the long term is considerable. Conclusions: Clinical trials have indicated that pharmaceutical treatment of POAG is effective and safe. In addition, the new novel Rho-kinase inhibitors have shown significant IOP reduction. The new fixed combinations have also yielded significant reductions in IOP. POAG is a cause of irreversible vision loss, if not diagnosed and treated early. The condition is likely to progress in a significant number of patients, with a considerable risk of blindness in the long-term. How to cite this article: Al-Namaeh M. Pharmaceutical treatment of primary open angle glaucoma. Med Hypothesis Discov Innov Optom. 2021 Spring; 2(1): 8-17. DOI: https://doi.org/10.51329/mehdioptometry120

2020 ◽  
pp. 106002802097121
Author(s):  
Lipton E. Gonzalez ◽  
Paul M. Boylan

Objective: To evaluate netarsudil’s role as first-line therapy for the treatment of open-angle glaucoma (OAG) and ocular hypertension (OHT). Data Sources: A literature search utilizing MEDLINE and CINAHL was performed using netarsudil and AR-13324 as keywords. Studies published from January 1970 to September 2020 were eligible. Study Selection and Data Extraction: For inclusion, articles were required to be published in English and participants enrolled in phase I, II, or III clinical trials. Articles were excluded if netarsudil was coformulated with another medication. Preclinical research, case reports, case series, review articles, citations without an abstract, and newsletters were excluded. Literature Review: The search retrieved 97 unique citations; 90 results were excluded, and 7 studies were included for analysis. Relevance to Patient Care and Clinical Practice: In all, 20 years elapsed between the Food and Drug Administration’s approvals of distinct medications to treat OAG. Existing first-line therapies target the uveoscleral pathway, which is responsible for a small amount of aqueous humor outflow. Rho kinase inhibitors target the trabecular pathway, which is responsible for 90% of aqueous humor outflow; thus, Rho kinase inhibitors may significantly reduce intraocular pressure and improve clinical outcomes for patients with OAG or OHT. Conclusions: Evidence demonstrates that netarsudil is inferior to prostaglandin analogues and noninferior to topical β-blockers in the treatment of OAG and OHT. Hyperemia is a common adverse drug reaction, which often resolves after medication discontinuation. Additional phase III clinical trials and evidence-based guidelines are necessary to determine netarsudil’s position in OAG and OHT management.


GlaucomaNews ◽  
2020 ◽  
pp. 65-69
Author(s):  
T.E. Lipatkina ◽  
◽  
Е.V. Karlova ◽  
A.V. Zolotarev ◽  
◽  
...  

Patients with primary open-angle glaucoma (POAG) and ophthalmic hypertension have an increased likelihood of developing occlusions (thrombosis) of the central retinal vein. Different groups of antihypertensive drugs differ in their mechanism of action and may affect concomitant ocular pathology, in particular, retinal edema, which occurs, for example, in occlusion of the central retinal vein. Used in most patients with glaucoma, prostaglandin analogs can contribute to the long-term preservation of macular edema due to the effect on the permeability of the vascular wall. Preparations of other pharmacological groups, reducing the production of aqueous humor, on the contrary, may contribute to its regression. Therefore, the question of choosing a drug for antihypertensive therapy in patients with primary open-angle glaucoma and concomitant macular edema is relevant and is for further study.


Author(s):  
Josefine Clement Freiberg ◽  
Alexander von Spreckelsen ◽  
Naira Khachatryan ◽  
Miriam Kolko ◽  
Augusto Azuara-Blanco ◽  
...  

Cells ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1518 ◽  
Author(s):  
Jennifer A. Faralli ◽  
Mark S. Filla ◽  
Donna M. Peters

Primary open angle glaucoma (POAG) is the most common form of glaucoma and the 2nd most common cause of irreversible vision loss in the United States. Nearly 67 million people have the disease worldwide including >3 million in the United States. A major risk factor for POAG is an elevation in intraocular pressure (IOP). The increase in IOP is believed to be caused by an increase in the deposition of extracellular matrix proteins, in particular fibronectin, in a region of the eye known as the trabecular meshwork (TM). How fibronectin contributes to the increase in IOP is not well understood. The increased density of fibronectin fibrils is thought to increase IOP by altering the compliance of the trabecular meshwork. Recent studies, however, also suggest that the composition and organization of fibronectin fibrils would affect IOP by changing the cell-matrix signaling events that control the functional properties of the cells in the trabecular meshwork. In this article, we will discuss how changes in the properties of fibronectin and fibronectin fibrils could contribute to the regulation of IOP.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Fan Li ◽  
Guangxian Tang ◽  
Hengli Zhang ◽  
Xiaowei Yan ◽  
Lihua Ma ◽  
...  

Purpose. To compare long-term effects of trabeculectomy on pseudoexfoliation glaucoma (PXG) and primary open-angle glaucoma (POAG). Methods. This retrospective case-control study included 53 eyes of PXG and 76 eyes of POAG. Intraocular pressure (IOP), number of antiglaucoma medications used, surgical success rate, and occurrence of complications were observed and statistically analyzed in both groups at 3 and 6 months and at 1, 3, and 5 years after trabeculectomy. Surgical success was defined according to the following 3 criteria: (1) IOP ≤ 21 mmHg; (2) IOP ≤ 18 mmHg; (3) IOP ≤ 15 mmHg. Complete success is defined as patients met these criteria without medical treatment, and qualified success is defined as patients met these criteria with medical treatment (≤3 medications). Cumulative probabilities of success were compared using the Kaplan–Meier survival analysis. Results. For the 3 criteria, there were no statistically significant differences in complete and qualified success rates between the two groups at 3 and 6 months after trabeculectomy (P>0.05). For criterion A, complete success rates in PXG at 3 and 5 years after surgery were lower than those in POAG; for criterion B, complete and qualified success rates in PXG at 3 and 5 years after surgery were lower than those in POAG; for criterion C, complete and qualified success rates in PXG at 1, 3, and 5 years after surgery were lower than those in POAG, the differences were statistically significant (P<0.05). Conclusions. The short-term success rates of both types of glaucoma were similar; however, the long-term success rate of PXG was significantly lower, and it was difficult to achieve long-term control of IOP at a low target level.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Martina Tomić ◽  
Snježana Kaštelan ◽  
Kata Metež Soldo ◽  
Jasminka Salopek-Rabatić

Purpose. Primary open-angle glaucoma (POAG), a chronic, degenerative optic neuropathy, requires persistent decrease of intraocular pressure so as to prevent visual impairment and blindness. However, long-term use of topical ocular medications may affect ocular surface health. Purpose of this study was to evaluate the influence of BAK-preserved prostaglandin analog treatment on the ocular surface health in patients with newly diagnosed POAG.Methods. 40 newly diagnosed POAG patients were included in this prospective study. Intraocular pressure (IOP), tear break-up time (TBUT), and ocular surface disease index (OSDI) were assessed at baseline and 3-month after starting treatment with BAK-preserved travoprost 0.004%.Results. IOP decreased in all patients from baseline to 3-month final visit (23.80 ± 1.73 mmHg versus 16.78 ± 1.27 mmHg;P<0.001). Mean TBUT decreased from11.70±1.86seconds at baseline to 8.30 ± 1.29 seconds at 3-month final visit (<0.001). Mean OSDI score increased from 31.63 ± 18.48 to 44.41 ± 16.48 (P<0.001).Conclusions. This study showed that BAK-preserved travoprost 0.004% is an effective medication in newly diagnosed POAG patients, but its long-term use may negatively influence ocular surface health by disrupting the tear film stability. Further studies are needed to better understand the clinical effects of different preservative types and concentrations on the ocular surface.


2009 ◽  
Vol 03 (01) ◽  
pp. 19 ◽  
Author(s):  
Anton Hommer ◽  

Primary open-angle glaucoma (POAG) is a progressive optic neuropathy that, left untreated, can lead to irreversible damage to the optic nerve and permanent vision loss. To date, intraocular pressure (IOP) is the only modifiable risk factor for disease progression, and topical eye-drops are currently used as the leading non-surgical glaucoma therapy. Despite the efficacy of pharmacotherapy in lowering IOP, success is ultimately defined by patient compliance and patient persistence. Ocular tolerability is a crucial factor in patient compliance and persistence; non-adherence owing to adverse effects can lead to poor control of IOP and treatment failure. Prostaglandin analogues are currently the first-line antiglaucoma agents, with a good tolerability profile and a better IOP-lowering effect compared with β-blockers. Combination therapies have also shown greater efficacy in lowering IOP compared with the individual constituents, with fewer adverse effects. Treatment should be tailored to the individual patient, with a focus on ocular tolerability and its role in adherence, compliance and vision preservation.


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