Corticosteroid Injection Combined With Cataract Surgery in Diabetic Eyes.

Cataract Clinical Trial

Official title:

Combined Phacoemulsification Surgery and Intravitreal Triamcinolone Injection Versus Stand-alone Surgery in Patients With Type 2 Diabetes: A Randomized Controlled Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05413330
• Other study ID #: UDMS-Opthal-01-2022
• Status: Completed
• Phase: Phase 2/Phase 3
• Start date: September 12, 2020
• Est. completion date: March 29, 2022

Study information

• Verified date: April 2023
• Source: Damascus University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The investigators aim in this study to investigate the effect of intravitreal triamcinolone acetonide injection on the development of macular edema and the progression of diabetic retinopathy. Whether this injection hastens cataract surgery results or not. The investigators will categorize the participants into two groups: the case group who will receive the injection at the end of the surgery, and the control group who will have routine cataract surgery with no extra injections.

Description:

Cataract and diabetic retinopathy (DR) represent two of the top five leading causes of global impaired vision and blindness according to the WHO. Higher incidence and faster cataract progression are well-established in diabetic patients, especially those with higher glycated hemoglobin values. Further, it is estimated that up to 20% of all cataract surgery is performed on diabetic patients. The investigators aim in this study to contribute to investigating the efficacy of triamcinolone acetonide injection at the end of phacoemulsification surgery in patients with type 2 diabetes in comparison with the standard phacoemulsification surgery: whether it blunts the initiation as well as the progression of diabetic macular edema and diabetic retinopathy, and improves visual outcomes. Besides, The investigators aim to evaluate the consequences and safety of the injection.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 73
• Est. completion date: March 29, 2022
• Est. primary completion date: January 5, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 19 Years to 49 Years

Eligibility

Inclusion Criteria:

• ? A history of diabetes mellitus DM type II that is well-confirmed by an endocrinologist.

• Senile cataract that is causing visual disturbance as demonstrated by clinical examination.

• CDVA of no more than 20/ 40, finger count and hand movement vision are included. Too.

• Diabetic retinopathy that falls in one of the following categories according to the International Clinical Diabetic Retinopathy Disease Severity Scale: No DR- mild NPDR- moderate NPDR.

• A healthy-looking central macula, or Clinically Significant Macular Edema (CSME), or edema that is apparent on Fundus Fluorescent Angiography (FFA) or OCT, as well as a treatment-resistant diabetic macular edema in the past 24 months or microaneurysms at foveal avascular zone (FAZ) borders not amenable to laser therapy.

• Both sexes, Age 18 years or older.

• One eye per patient will be included.

• The surgery will be performed by the same surgeon and the samIOL design will be used.

Exclusion Criteria:

• • A history of diabetes mellitus DM type I that is well-confirmed by an endocrinologist or no history of DM.

• CDVA that is better than 20/40.

• functionally monocular patient as a result of moderate to severe visual impairment in the contralateral eye, as per the definition of the International Statistical Classification of Diseases and Related Health Problems, 10th revision (6).

• The presence of pathologies other than diabetic retinopathy and cataract that may justify visual acuity decline (e.g. corneal disease, age related macular degeneration, macular hole, etc…).

• patients will be excluded if they had an increased risk for developing CME in the study eye because of a complication during the current or previous intraocular surgery, intraocular inflammation or uveitis, retinal vein occlusion, or macular pathology that might influence visual function, other than diabetic macular edema.

• Patients with pseudoexfoliation syndrome, Fuchs endothelial dystrophy, or post-traumatic cataract in the study eye.

• Diabetic retinopathy that falls in one of the following categories according to the International Clinical Diabetic Retinopathy Disease Severity Scale: severe NPDR, proliferative DR, or vitreous hemorrhage requiring pan-retinal photocoagulation or vitrectomy.

• Patients who used topical NSAIDs, topical or systemic corticosteroids before surgery.

• patients who received an intravitreal injection with any kind of anti-VEGF in the study eye in the previous 6 weeks, or an intraocular or periocular corticosteroid injection in the previous 3 months.

• patients who received PRP during the past 3 months.

• Contraindications for any of the investigated drugs, particularly patients with glaucoma, IOP of 21mm Hg or higher, previous steroid-induced IOP elevation, or ganglion cell/ RNFL complex injury on OCT image.

• History of steroid hypersensitivity.

• Patients who are taking steroids PO with a total dosage of more than 5 mg/ day.

• Pregnant and breastfeeding ladies.

• Previous surgery on the study eye.

• systemic bleeding in the previous 3 months, major systemic surgery in the previous 3 months, or a recent or recurrent cerebrovascular accident, myocardial infarction, or thromboembolic event.

Related Conditions & MeSH terms

• Cataract
• Diabete Type 2
• Diabetes Mellitus, Type 2
• Intravitreal Injection
• Triamcinolone Acetonide

Intervention

Drug:
• Triamcinolone Acetonide
Intravitreal injection of 4 mg/0.1 mL preservative-free triamcinolone acetonide at the end of phacoemulsification surgery will be injected at 3.5 mm inferolateral and posterior to the limbus.

Locations

Country	Name	City	State
Syrian Arab Republic	Damascus University	Damascus

Sponsors (1)

Lead Sponsor	Collaborator
Damascus University

Country where clinical trial is conducted

Syrian Arab Republic, 

References & Publications (10)

Chung J, Kim MY, Kim HS, Yoo JS, Lee YC. Effect of cataract surgery on the progression of diabetic retinopathy. J Cataract Refract Surg. 2002 Apr;28(4):626-30. doi: 10.1016/s0886-3350(01)01142-7. — View Citation

Diabetic Retinopathy Clinical Research Network; Elman MJ, Aiello LP, Beck RW, Bressler NM, Bressler SB, Edwards AR, Ferris FL 3rd, Friedman SM, Glassman AR, Miller KM, Scott IU, Stockdale CR, Sun JK. Randomized trial evaluating ranibizumab plus prompt or deferred laser or triamcinolone plus prompt laser for diabetic macular edema. Ophthalmology. 2010 Jun;117(6):1064-1077.e35. doi: 10.1016/j.ophtha.2010.02.031. Epub 2010 Apr 28. — View Citation

Eriksson U, Alm A, Bjarnhall G, Granstam E, Matsson AW. Macular edema and visual outcome following cataract surgery in patients with diabetic retinopathy and controls. Graefes Arch Clin Exp Ophthalmol. 2011 Mar;249(3):349-59. doi: 10.1007/s00417-010-1484-9. Epub 2010 Sep 9. — View Citation

Kim SY, Yang J, Lee YC, Park YH. Effect of a single intraoperative sub-Tenon injection of triamcinolone acetonide on the progression of diabetic retinopathy and visual outcomes after cataract surgery. J Cataract Refract Surg. 2008 May;34(5):823-6. doi: 10.1016/j.jcrs.2008.01.018. — View Citation

Lee R, Wong TY, Sabanayagam C. Epidemiology of diabetic retinopathy, diabetic macular edema and related vision loss. Eye Vis (Lond). 2015 Sep 30;2:17. doi: 10.1186/s40662-015-0026-2. eCollection 2015. — View Citation

Lundstrom M, Barry P, Henry Y, Rosen P, Stenevi U. Visual outcome of cataract surgery; study from the European Registry of Quality Outcomes for Cataract and Refractive Surgery. J Cataract Refract Surg. 2013 May;39(5):673-9. doi: 10.1016/j.jcrs.2012.11.026. Epub 2013 Mar 14. — View Citation

Mentes J, Erakgun T, Afrashi F, Kerci G. Incidence of cystoid macular edema after uncomplicated phacoemulsification. Ophthalmologica. 2003 Nov-Dec;217(6):408-12. doi: 10.1159/000073070. — View Citation

Mittra RA, Borrillo JL, Dev S, Mieler WF, Koenig SB. Retinopathy progression and visual outcomes after phacoemulsification in patients with diabetes mellitus. Arch Ophthalmol. 2000 Jul;118(7):912-7. — View Citation

Simons RWP, Wielders LHP, Nuijts RMMA, Veldhuizen CA, van den Biggelaar FJHM, Winkens B, Schouten JSAG, Dirksen CD; ESCRS PREMED Study Group. Economic evaluation of prevention of cystoid macular edema after cataract surgery in diabetic patients: ESCRS PREMED study report 6. J Cataract Refract Surg. 2022 May 1;48(5):555-563. doi: 10.1097/j.jcrs.0000000000000785. — View Citation

Wielders LHP, Schouten JSAG, Winkens B, van den Biggelaar FJHM, Veldhuizen CA, Findl O, Murta JCN, Goslings WRO, Tassignon MJ, Joosse MV, Henry YP, Rulo AHF, Guell JL, Amon M, Kohnen T, Nuijts RMMA; ESCRS PREMED Study Group. European multicenter trial of the prevention of cystoid macular edema after cataract surgery in nondiabetics: ESCRS PREMED study report 1. J Cataract Refract Surg. 2018 Apr;44(4):429-439. doi: 10.1016/j.jcrs.2018.01.029. Erratum In: J Cataract Refract Surg. 2018 Sep;44(9):1166. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in central subfield mean macular thickness as a measurement of efficacy	The primary endpoint is the change in central subfield mean macular thickness in the 1 mm area (central subfield macular thickness, CSMT) as compared to baseline within the first 6 months postoperatively.	T0_ 1 month- T1_ 3 months- T2_ 6 months postoperatively]
Primary	Change in diabetic retinopathy grade as a measurement of efficacy	The primary endpoint is the change in diabetic retinopathy grade as compared to baseline within the first 6 months postoperatively.	T0: 1 month- T2: 3 months- T3: 6 months postoperatively
Secondary	Change in corrected distance visual acuity CDVA as a measurement of efficacy	CDVA measurements will be taken in metres then converted to Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity testing charts (logMAR).	_1 week- T1_ 1 month- T2_ 3 months- T3_ 6 months postoperatively
Secondary	ntraocular pressure (IOP) as a measurement of safety	IOP (in mmHg) will be measured by Goldmann applanation tonometry	T0: 1 week- T1: 1 month- T2: 3 months- T3: 6 months postoperatively
Secondary	No. of subjects with Adverse Events as a measurement of safety	An adverse event (AE) is defined as any undesirable experience occurring to a subject during the study, whether or not considered related to the investigational product. All adverse events reported spontaneously by the subject or observed by the principal investigator or his staff will be recorded. Endophthalmitis in particular will be recorded.	T0: 1 week- T1: 1 month-T2: 3 months- T3: 6 months postoperatively