- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02964676
Clinical Efficacy and Safety of Minimally Invasive Glaucoma Surgery on Primary Angle Closure Glaucoma
November 23, 2016 updated by: Shanghai Eye Disease Prevention and Treatment Center
Clinical Efficacy and Safety of Minimally Invasive Glaucoma Surgery on Chinese Primary Angle Closure Glaucoma
To evaluate the clinical efficacy (intraocular pressure reduction , success rate, the number of antiglaucoma medication) and safety of ab interno trabeculectomy (AIT) with Trabectome in Chinese PACG .
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
A randomized, single blind, positive parallel control study method was used.This prospective case series will recruit 246 Chinese POAG, 123 cases in the experimental group will receive AIT treatment and 123 cases in the control group will receive trabeculectomy(Trab) surgery.Measurements of intraocular pressure(IOP) , visual acuity, refraction, slit lamp examination of the anterior segment and fundus, optical coherence tomography(OCT) to detect retinal nerve fiber layer thickness, macular thickness, visual field, gonioscopy and ultrasonic biological microscopy (UBM) will be recorded.They will be followed up for 12 months.
The main outcome is success rate of IOP reduction and the other outcome are the number of antiglaucoma medication and complications .
Study Type
Interventional
Enrollment (Anticipated)
246
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: LING GE, M.d.
- Phone Number: 851 +86-21-62717733
- Email: geling99@sina.com
Study Contact Backup
- Name: XIAOLING FANG, M.d.
- Phone Number: 811 +86-21-62717733
- Email: fangxl0617@hotmail.com
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Primary Angle Closure Glaucoma (PACG) with visible trabecular meshwork from 90︒ to 180︒ on gonioscopy and IOP couldn't be controlled ≤21mmHg with pilocarpine eye drop only.
- willing to accept the antiglaucoma surgery
- volunteer to participate in this study and be able to follow up on time
- previous antiglaucoma filtering surgery or laser surgery(LPI, SLT) and previous cataract surgery were not ruled out
- Exclusion Criteria:
- visual acuity lower than HM or central tubular visual field
- corneal edema or large pterygium affecting the observation of anterior angle
- the demarcation of the scleral process and trabecular meshwork is not clear on gonioscopy
- new vessels on the iris surface or in the anterior angle chamber
- the eye received surgery is the only eye with visual function, that is the contralateral eye is blind
- requiring long-term use of anticoagulant drugs for systemic reasons
- abnormal coagulation function
- with specific clear scar physique
- cannot participate in follow-up
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: AIT group
PACG in AIT group will receive ab interno trabeculectomy with Trabectome and before AIT, Laser Peripheral Iridectomy (LPI) will be performed first.
|
123 PACG will be recruited to receive ab interno trabeculectomy with Trabectome and before this surgery, laser peripheral iridectomy will be performed firstly
|
Active Comparator: Trab group
PACG in AIT group will receive trabeculectomy.
|
123 PACG will be recruited to receive trabeculectomy to reduce IOP
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
success rate of IOP reduction
Time Frame: 12 months
|
IOP ≤21mmHg and IOP reduction rate ≥20% with or without antiglaucoma medications and without additional glaucoma surgery
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
number of antiglaucoma medication
Time Frame: 12 months
|
numbers of antiglaucoma medication will be recorded before surgery and 12 months follow up.
|
12 months
|
complication rate
Time Frame: 12 months
|
all the complications related to the surgery will be evaluated and recorded.
|
12 months
|
24-hour IOP fluctuations
Time Frame: 12 months
|
24-hour IOP fluctuations curve will be recorded before treatment and 12 months follow up.
|
12 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: LING GE, M.d., Shanghai Eye Disease Prevention and Treatment Center
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Kass MA, Heuer DK, Higginbotham EJ, Johnson CA, Keltner JL, Miller JP, Parrish RK 2nd, Wilson MR, Gordon MO. The Ocular Hypertension Treatment Study: a randomized trial determines that topical ocular hypotensive medication delays or prevents the onset of primary open-angle glaucoma. Arch Ophthalmol. 2002 Jun;120(6):701-13; discussion 829-30. doi: 10.1001/archopht.120.6.701.
- He M, Foster PJ, Ge J, Huang W, Zheng Y, Friedman DS, Lee PS, Khaw PT. Prevalence and clinical characteristics of glaucoma in adult Chinese: a population-based study in Liwan District, Guangzhou. Invest Ophthalmol Vis Sci. 2006 Jul;47(7):2782-8. doi: 10.1167/iovs.06-0051.
- Minckler D, Mosaed S, Dustin L, Ms BF; Trabectome Study Group. Trabectome (trabeculectomy-internal approach): additional experience and extended follow-up. Trans Am Ophthalmol Soc. 2008;106:149-59; discussion 159-60.
- Bussel II, Kaplowitz K, Schuman JS, Loewen NA; Trabectome Study Group. Outcomes of ab interno trabeculectomy with the trabectome by degree of angle opening. Br J Ophthalmol. 2015 Jul;99(7):914-9. doi: 10.1136/bjophthalmol-2014-305577. Epub 2014 Oct 21.
- Wilson MR, Mendis U, Paliwal A, Haynatzka V. Long-term follow-up of primary glaucoma surgery with Ahmed glaucoma valve implant versus trabeculectomy. Am J Ophthalmol. 2003 Sep;136(3):464-70. doi: 10.1016/s0002-9394(03)00239-3.
- Sihota R, Gupta V, Agarwal HC. Long-term evaluation of trabeculectomy in primary open angle glaucoma and chronic primary angle closure glaucoma in an Asian population. Clin Exp Ophthalmol. 2004 Feb;32(1):23-8. doi: 10.1046/j.1442-9071.2004.00752.x.
- Wang M, Ge J, Lin MK, Zhuo YH, Ling YL, Fang M, Liu X, Peng SX, Yu MB. [Clinical observation of trabeculectomy for primary angle closure glaucoma]. Zhonghua Yan Ke Za Zhi. 2009 Apr;45(4):338-43. Chinese.
- Tsai HY, Liu CJ, Cheng CY. Combined trabeculectomy and cataract extraction versus trabeculectomy alone in primary angle-closure glaucoma. Br J Ophthalmol. 2009 Jul;93(7):943-8. doi: 10.1136/bjo.2008.151803. Epub 2009 Apr 20.
- Saheb H, Ahmed II. Micro-invasive glaucoma surgery: current perspectives and future directions. Curr Opin Ophthalmol. 2012 Mar;23(2):96-104. doi: 10.1097/ICU.0b013e32834ff1e7.
- Palanca-Capistrano AM, Hall J, Cantor LB, Morgan L, Hoop J, WuDunn D. Long-term outcomes of intraoperative 5-fluorouracil versus intraoperative mitomycin C in primary trabeculectomy surgery. Ophthalmology. 2009 Feb;116(2):185-90. doi: 10.1016/j.ophtha.2008.08.009. Epub 2008 Oct 18.
- Wang M, Fang M, Bai YJ, Zhang WZ, Lin MK, Liu BQ, Hao YT, Ling YL, Zhuo YH, Ge J. Comparison of combined phacotrabeculectomy with trabeculectomy only in the treatment of primary angle-closure glaucoma. Chin Med J (Engl). 2012 Apr;125(8):1429-33.
- Wagn X, Jia C, Feng MY, Meng HL, Fan SJ, Xie LL, Sun LP, Liu LR, Xie C, Peng Y, Tang X, Liagn YB, Zhai G, Jiang YQ, Ye TC, Wang NL. [Assess correlation between bleb morphology at long-term intraocular pressure effect in primary angle-closure glaucoma following trabeculectomy]. Zhonghua Yan Ke Za Zhi. 2011 Oct;47(10):898-902. Chinese.
- Soltau JB, Rothman RF, Budenz DL, Greenfield DS, Feuer W, Liebmann JM, Ritch R. Risk factors for glaucoma filtering bleb infections. Arch Ophthalmol. 2000 Mar;118(3):338-42. doi: 10.1001/archopht.118.3.338.
- DeBry PW, Perkins TW, Heatley G, Kaufman P, Brumback LC. Incidence of late-onset bleb-related complications following trabeculectomy with mitomycin. Arch Ophthalmol. 2002 Mar;120(3):297-300. doi: 10.1001/archopht.120.3.297.
- Ho CL, Lai JS, Aquino MV, Rojanapongpun P, Wong HT, Aquino MC, Gerber Y, Belkin M, Barkana Y. Selective laser trabeculoplasty for primary angle closure with persistently elevated intraocular pressure after iridotomy. J Glaucoma. 2009 Sep;18(7):563-6. doi: 10.1097/IJG.0b013e318193c2d1.
- Mosaed S, Dustin L, Minckler DS. Comparative outcomes between newer and older surgeries for glaucoma. Trans Am Ophthalmol Soc. 2009 Dec;107:127-33.
- Vinod K, Gedde SJ. Ab interno trabeculectomy: patient selection and perspectives. Clin Ophthalmol. 2016 Aug 17;10:1557-64. doi: 10.2147/OPTH.S99746. eCollection 2016.
- Minckler D, Baerveldt G, Ramirez MA, Mosaed S, Wilson R, Shaarawy T, Zack B, Dustin L, Francis B. Clinical results with the Trabectome, a novel surgical device for treatment of open-angle glaucoma. Trans Am Ophthalmol Soc. 2006;104:40-50.
- Maeda M, Watanabe M, Ichikawa K. Evaluation of trabectome in open-angle glaucoma. J Glaucoma. 2013 Mar;22(3):205-8. doi: 10.1097/IJG.0b013e3182311b92.
- Werth JP, Gesser C, Klemm M. [Diverse effectiveness of the trabectome for different types of glaucoma]. Klin Monbl Augenheilkd. 2015 Jan;232(1):72-8. doi: 10.1055/s-0034-1383010. Epub 2014 Oct 1. German.
- Lee JWY, Yick DWF, Tsang S, Yuen CYF, Lai JSM. Efficacy and Safety of Trabectome Surgery in Chinese Open-Angle Glaucoma. Medicine (Baltimore). 2016 Apr;95(15):e3212. doi: 10.1097/MD.0000000000003212.
- Jea SY, Mosaed S, Vold SD, Rhee DJ. Effect of a failed trabectome on subsequent trabeculectomy. J Glaucoma. 2012 Feb;21(2):71-5. doi: 10.1097/IJG.0b013e31820bcfda.
- Huang P, Wang H, Wu H, Sun Y, Wang M, Cui Y, Qiu W, Yang Y, Ren Z, Zhang C, Wang N. [Preliminary investigation on the safety and efficacy of Trabectome]. Zhonghua Yan Ke Za Zhi. 2015 Feb;51(2):115-9. Chinese.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
January 1, 2017
Primary Completion (Anticipated)
December 1, 2019
Study Completion (Anticipated)
December 1, 2019
Study Registration Dates
First Submitted
November 14, 2016
First Submitted That Met QC Criteria
November 14, 2016
First Posted (Estimate)
November 16, 2016
Study Record Updates
Last Update Posted (Estimate)
November 28, 2016
Last Update Submitted That Met QC Criteria
November 23, 2016
Last Verified
November 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- YFZX2016002
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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