Effect of Dexamethasone Implant on Optic Disc

NCT ID: NCT03927118

Last Updated: 2019-05-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

43 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-02-01

Study Completion Date

2019-01-31

Brief Summary

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This study evaluates the effect of dexamethasone implant which is an intraocular corticosteroid on the optic nerve fibers. Retinal nerve fiber thicknesses and optic nerve head pitting rates were measured before and 6 months after the injection.

Detailed Description

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Diabetic macular edema is the most frequent ocular complication of diabetes resulting in irreversible loss of vision if untreated. Dexamethasone implant implant is used to treat macular edema due to diabetes. It stay in the vitreous for 6 months after intravitreal administration.

Dexamethasone implant can lead to retinal nerve fiber layer and optic nerve damage by both increasing intraocular pressure and its direct effect on neural tissue during the effective 6-month period.

Conditions

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Glaucoma and Ocular Hypertension Diabetic Macular Edema Intravenous Drug Usage Optic Disk Disorders

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Interventions

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intravitreal dexamethasone implant application

Peripapillary RNFL thickness measurements and colored fundus photographs were compared before and 6 months after intravitreal DEX implant injection. The cup-to-disc ratios of fundus photographs were calculated using the Image-J program.

Intervention Type PROCEDURE

Other Intervention Names

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The Effect of Dexamethasone Implant on Retinal Nerve Fiber and Optic Disc in Diabetic maculopathy.

Eligibility Criteria

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Inclusion Criteria

Patients who underwent first time intravitreal injection

Exclusion Criteria

Previously received any surgery

Proliferative diabetic retinopathy

Glaucoma or glaucoma suspicion

Optic disc fatigue

Optic disc edema

Uveitis and media opacity

Blurred of image clarity
Minimum Eligible Age

20 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Bulent Ecevit University

OTHER

Sponsor Role lead

Responsible Party

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Atilla Alpay

Associate professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Atilla Alpay, Ass. Prf.

Role: STUDY_DIRECTOR

Zonguldak Bulent Ecevit University

Locations

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Zonguldak Bülent Ecevit Üniversitesi.

Zonguldak, Kozlu, Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

References

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Du JH, Li X, Li R, Xu L, Ma RR, Liu SF, Zhang Z, Sun HZ. Elevation of serum apelin-13 associated with proliferative diabetic retinopathy in type 2 diabetic patients. Int J Ophthalmol. 2014 Dec 18;7(6):968-73. doi: 10.3980/j.issn.2222-3959.2014.06.10. eCollection 2014.

Reference Type BACKGROUND
PMID: 25540748 (View on PubMed)

Liu L, Wu X, Liu L, Geng J, Yuan Z, Shan Z, Chen L. Prevalence of diabetic retinopathy in mainland China: a meta-analysis. PLoS One. 2012;7(9):e45264. doi: 10.1371/journal.pone.0045264. Epub 2012 Sep 20.

Reference Type BACKGROUND
PMID: 23028893 (View on PubMed)

Assmann TS, Brondani LA, Boucas AP, Rheinheimer J, de Souza BM, Canani LH, Bauer AC, Crispim D. Nitric oxide levels in patients with diabetes mellitus: A systematic review and meta-analysis. Nitric Oxide. 2016 Dec 30;61:1-9. doi: 10.1016/j.niox.2016.09.009. Epub 2016 Sep 24.

Reference Type BACKGROUND
PMID: 27677584 (View on PubMed)

Suwanpradid J, Rojas M, Behzadian MA, Caldwell RW, Caldwell RB. Arginase 2 deficiency prevents oxidative stress and limits hyperoxia-induced retinal vascular degeneration. PLoS One. 2014 Nov 6;9(11):e110604. doi: 10.1371/journal.pone.0110604. eCollection 2014.

Reference Type BACKGROUND
PMID: 25375125 (View on PubMed)

Celik M, Cerrah S, Arabul M, Akalin A. Relation of asymmetric dimethylarginine levels to macrovascular disease and inflammation markers in type 2 diabetic patients. J Diabetes Res. 2014;2014:139215. doi: 10.1155/2014/139215. Epub 2014 Apr 3.

Reference Type BACKGROUND
PMID: 24804267 (View on PubMed)

Lluch P, Segarra G, Medina P. Asymmetric dimethylarginine as a mediator of vascular dysfunction in cirrhosis. World J Gastroenterol. 2015 Aug 28;21(32):9466-75. doi: 10.3748/wjg.v21.i32.9466.

Reference Type BACKGROUND
PMID: 26327755 (View on PubMed)

Heunisch F, Chaykovska L, von Einem G, Alter M, Dschietzig T, Kretschmer A, Kellner KH, Hocher B. ADMA predicts major adverse renal events in patients with mild renal impairment and/or diabetes mellitus undergoing coronary angiography. Medicine (Baltimore). 2017 Feb;96(6):e6065. doi: 10.1097/MD.0000000000006065.

Reference Type BACKGROUND
PMID: 28178159 (View on PubMed)

Franceschelli S, Ferrone A, Pesce M, Riccioni G, Speranza L. Biological functional relevance of asymmetric dimethylarginine (ADMA) in cardiovascular disease. Int J Mol Sci. 2013 Dec 16;14(12):24412-21. doi: 10.3390/ijms141224412.

Reference Type BACKGROUND
PMID: 24351825 (View on PubMed)

Yin YL, Zhu ML, Wan J, Zhang C, Pan GP, Lu JX, Ping S, Chen Y, Zhao FR, Yu HY, Guo T, Jian X, Liu LY, Zhang JN, Wan GR, Wang SX, Li P. Traditional Chinese medicine xin-mai-jia recouples endothelial nitric oxide synthase to prevent atherosclerosis in vivo. Sci Rep. 2017 Mar 2;7:43508. doi: 10.1038/srep43508.

Reference Type BACKGROUND
PMID: 28252100 (View on PubMed)

Marcovecchio ML, Widmer B, Turner C, Dunger DB, Dalton RN. Asymmetric dimethylarginine in young people with Type 1 diabetes: a paradoxical association with HbA(1c). Diabet Med. 2011 Jun;28(6):685-91. doi: 10.1111/j.1464-5491.2011.03252.x.

Reference Type BACKGROUND
PMID: 21294768 (View on PubMed)

Ersoy B, Eroglu N, Cetin M, Onur E, Ozkol M, Coskun S. Asymmetric dimethylarginine levels and diabetes duration: Relationship with measures of subclinical atherosclerosis and cardiac function in children and adolescents with Type 1 diabetes. Diab Vasc Dis Res. 2018 May;15(3):196-203. doi: 10.1177/1479164118757921. Epub 2018 Mar 2.

Reference Type BACKGROUND
PMID: 29498294 (View on PubMed)

Lin KY, Ito A, Asagami T, Tsao PS, Adimoolam S, Kimoto M, Tsuji H, Reaven GM, Cooke JP. Impaired nitric oxide synthase pathway in diabetes mellitus: role of asymmetric dimethylarginine and dimethylarginine dimethylaminohydrolase. Circulation. 2002 Aug 20;106(8):987-92. doi: 10.1161/01.cir.0000027109.14149.67.

Reference Type BACKGROUND
PMID: 12186805 (View on PubMed)

Other Identifiers

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BulentEU2

Identifier Type: -

Identifier Source: org_study_id

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