NCT04878458

Brief Summary

A multicenter, parallel, open, non-inferior randomized controlled trial was conducted to compare the effectiveness and safety of phacotrabeculectomy and phacogoniotomy in the treatment of advanced primary angle closure glaucoma, so as to provide a better surgical alternative.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
124

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 6, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

May 7, 2021

Completed
24 days until next milestone

Study Start

First participant enrolled

May 31, 2021

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2023

Completed
2.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2025

Completed
Last Updated

December 11, 2024

Status Verified

December 1, 2024

Enrollment Period

2 years

First QC Date

May 6, 2021

Last Update Submit

December 6, 2024

Conditions

Keywords

Glaucoma, Angle-Closure

Outcome Measures

Primary Outcomes (1)

  • Mean change of intraocular pressure

    Change from baseline IOP after surgery using Goldmann or non-contact tonometer.

    Postoperative 12, 24, 36 months.

Secondary Outcomes (3)

  • Cumulative success rate of surgery

    12, 24, 36 months

  • Intraoperative and postoperative complications

    0, 1, 7 day. 1, 3, 6, 12, 18, 24, 30, 36 months

  • Anti-glaucomatous medications

    0, 1, 7 day. 1, 3, 6, 12, 18, 24, 30, 36 months

Other Outcomes (8)

  • Visual acuity

    0, 1, 7 day. 1, 3, 6, 12, 18, 24, 30, 36 months

  • Degree of peripheral anterior synechia

    3, 12, 24, 36 months

  • Corneal endothelial cell counting

    0, 12, 24, 36 months

  • +5 more other outcomes

Study Arms (2)

PEI+GSL+GT

EXPERIMENTAL

Sixty-two patients with advanced primary angle-closure glaucoma will receive phacoemulsification with intraocular lens implantation combined with goniosynechialysis and goniotomy.

Procedure: phacoemulsification with intraocular lens implantation combined with goniosynechialysis and goniotomy

PEI+Trab

EXPERIMENTAL

Sixty-two patients with advanced primary angle-closure glaucoma will receive phacoemulsification with intraocular lens implantation combined with trabeculectomy.

Procedure: phacoemulsification with intraocular lens implantation combined with trabeculectomy

Interventions

The patients enrolled underwent phacoemulsification with intraocular lens implantation combined with goniosynechialysis and goniotomy.

PEI+GSL+GT

The patients enrolled underwent phacoemulsification with intraocular lens implantation combined with trabeculectomy.

PEI+Trab

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 40-80 years;
  • Diagnosed with advanced PACG: meet with (1) (2) (3) or (1) (2) (4)
  • At least 180-degree PAS under gonioscopy and it should cover the nasal and inferior quadrants for surgical purposes;
  • IOP \>21 mmHg with or without anti-glaucoma medication;
  • Obvious glaucomatous optic neuropathy (cup-to-disc \[C/D\] ratio≥0.7, or C/D asymmetry \> 0.2, or the rim width at the superior and inferior temporal \< 0.1 vertical diameters of optic disc);
  • With glaucomatous visual field defects, such as nasal step, arcuate scotoma, and paracentral scotoma on a reliable Humphrey analyzer using SITA-Standard 24-2 or 30-2 algorithm; mean deviation ≤ -12dB;
  • Clinically obvious cataract and uncorrected visual acuity (UCVA) \<0.63 (Early Treatment Diabetic Retinopathy Study, \[ETDRS\] chart), or need lens extraction assessed by a clinician;
  • Voluntarily participate in study and provide signed informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Zhongshan Ophthalmic Center

Guangzhou, Guangdong, China

Location

Zhongshan Ophthalmic Center

Guangdong, China

Location

Related Publications (10)

  • Husain R, Do T, Lai J, Kitnarong N, Nongpiur ME, Perera SA, Ho CL, Lim SK, Aung T. Efficacy of Phacoemulsification Alone vs Phacoemulsification With Goniosynechialysis in Patients With Primary Angle-Closure Disease: A Randomized Clinical Trial. JAMA Ophthalmol. 2019 Oct 1;137(10):1107-1113. doi: 10.1001/jamaophthalmol.2019.2493.

    PMID: 31294768BACKGROUND
  • Barry M, Alahmadi MW, Alahmadi M, AlMuzaini A, AlMohammadi M. The Safety of the Kahook Dual Blade in the Surgical Treatment of Glaucoma. Cureus. 2020 Jan 16;12(1):e6682. doi: 10.7759/cureus.6682.

    PMID: 31976190BACKGROUND
  • Tanito M, Sugihara K, Tsutsui A, Hara K, Manabe K, Matsuoka Y. Midterm Results of Microhook ab Interno Trabeculotomy in Initial 560 Eyes with Glaucoma. J Clin Med. 2021 Feb 17;10(4):814. doi: 10.3390/jcm10040814.

    PMID: 33671386BACKGROUND
  • Grover DS, Smith O, Fellman RL, Godfrey DG, Gupta A, Montes de Oca I, Feuer WJ. Gonioscopy-assisted Transluminal Trabeculotomy: An Ab Interno Circumferential Trabeculotomy: 24 Months Follow-up. J Glaucoma. 2018 May;27(5):393-401. doi: 10.1097/IJG.0000000000000956.

    PMID: 29613978BACKGROUND
  • Dorairaj S, Tam MD, Balasubramani GK. Two-Year Clinical Outcomes of Combined Phacoemulsification, Goniosynechialysis, and Excisional Goniotomy For Angle-Closure Glaucoma. Asia Pac J Ophthalmol (Phila). 2020 Oct 6;10(2):183-187. doi: 10.1097/APO.0000000000000321.

    PMID: 33031110BACKGROUND
  • Tham CC, Kwong YY, Baig N, Leung DY, Li FC, Lam DS. Phacoemulsification versus trabeculectomy in medically uncontrolled chronic angle-closure glaucoma without cataract. Ophthalmology. 2013 Jan;120(1):62-7. doi: 10.1016/j.ophtha.2012.07.021. Epub 2012 Sep 15.

    PMID: 22986111BACKGROUND
  • Song Y, Li F, Zhang X. Response: Comment on "Phacogoniotomy versus phacotrabeculectomy for advanced primary angle-closure glaucoma with cataract: A randomized non-inferiority trial". Asia Pac J Ophthalmol (Phila). 2024 May-Jun;13(3):100076. doi: 10.1016/j.apjo.2024.100076. Epub 2024 May 23. No abstract available.

  • Song Y, Lin F, Lv A, Zhang Y, Lu L, Xie L, Tang G, Yuan H, Yang Y, Xu J, Lu P, Xiao M, Zhu X, Yan X, Song W, Li X, Zhang H, Li F, Wang Z, Jin L, Gao X, Liang X, Zhou M, Zhao X, Zhang Y, Chen W, Wang N, Tham CC, Barton K, Park KH, Aung T, Weinreb RN, Tang L, Fan S, Lam DSC, Zhang X; PVP Study group. Phacogoniotomy versus phacotrabeculectomy for advanced primary angle-closure glaucoma with cataract: A randomized non-inferiority trial. Asia Pac J Ophthalmol (Phila). 2024 Jan-Feb;13(1):100033. doi: 10.1016/j.apjo.2023.100033. Epub 2023 Dec 26.

  • Song Y, Fan S, Tang L, Lin F, Li F, Lv A, Li X, Wen T, Lu L, Xiao M, Xie L, Zhu X, Tang G, Zhang H, Yan X, Yuan H, Song W, Yang Y, Xu J, Zhou F, Wang Z, Jin L, Liang X, Zhou M, Zhao X, Chen W, Park KH, Barton K, Aung T, Tham CC, Lam DSC, Weinreb RN, Wang N, Zhang X; PVP Study Group. Two-Year Outcomes of Phacogoniotomy vs Phacotrabeculectomy for Advanced Primary Angle-Closure Glaucoma With Cataract: A Noninferiority Randomized Clinical Trial. JAMA Ophthalmol. 2025 Jun 1;143(6):462-469. doi: 10.1001/jamaophthalmol.2025.0685.

  • Song Y, Song W, Zhang Y, Zhang H, Xiao M, Zhao X, Lv A, Yan X, Lu P, Zhu X, Gao X, Hu K, Zhang Y, Liang X, Zhang X, Tang G, Lu L, Zhou M, Fan S, Xie L, Jin L, Tang L, Yuan H, Zhang X; PVP Study group. Efficacy and safety of phacotrabeculectomy versus phacogoniotomy in advanced primary angle-closure glaucoma: study protocol for a multicentre non-inferiority randomised controlled trial (PVP Study). BMJ Open. 2021 Dec 8;11(12):e056876. doi: 10.1136/bmjopen-2021-056876.

MeSH Terms

Conditions

Glaucoma, Angle-Closure

Interventions

PhacoemulsificationTrabeculectomy

Condition Hierarchy (Ancestors)

GlaucomaOcular HypertensionEye Diseases

Intervention Hierarchy (Ancestors)

Cataract ExtractionRefractive Surgical ProceduresOphthalmologic Surgical ProceduresSurgical Procedures, OperativeUltrasonic Surgical ProceduresFiltering Surgery

Study Officials

  • Xiulan Zhang, MD, PhD

    Zhongshan Ophthalmic Center, Sun Yat-sen University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: multicenter, parallel, open, non-inferior randomized controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Clinical Research Center

Study Record Dates

First Submitted

May 6, 2021

First Posted

May 7, 2021

Study Start

May 31, 2021

Primary Completion

May 30, 2023

Study Completion

June 30, 2025

Last Updated

December 11, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations