NCT04703712

Brief Summary

To compare the effectiveness of lens extraction combined with goniosynechialysis and trabeculectomy in treating advanced angle-closure glaucoma.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
316

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

January 3, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 11, 2021

Completed
19 days until next milestone

Study Start

First participant enrolled

January 30, 2021

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
Last Updated

March 1, 2023

Status Verified

February 1, 2023

Enrollment Period

3.8 years

First QC Date

January 3, 2021

Last Update Submit

February 28, 2023

Conditions

Keywords

phacoemulsificationgoniosynechialysistrabeculectomy

Outcome Measures

Primary Outcomes (12)

  • Intraocular pressure (IOP) change at one month

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at one month.

    one month

  • IOP change at three months

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at three months.

    three months

  • IOP change at six months

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at six months.

    six months

  • IOP change at one year

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at one year.

    one year

  • IOP change at two years

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at two years.

    two years

  • IOP change at three years

    Change from baseline IOP after phacoemulsification combined with goniosynechialysis or trabeculectomy at three years.

    three years

  • Best corrected visual acuity at one month

    Best corrected visual acuity of participants after surgery at one month

    one month

  • Best corrected visual acuity at three months

    Best corrected visual acuity of participants after surgery at three months

    three months

  • Best corrected visual acuity at six months

    Best corrected visual acuity of participants after surgery at six months

    six months

  • Best corrected visual acuity at one year

    Best corrected visual acuity of participants after surgery at one year

    one year

  • Best corrected visual acuity at two years

    Best corrected visual acuity of participants after surgery at two years

    two years

  • Best corrected visual acuity at three years

    Best corrected visual acuity of participants after surgery at three years

    three years

Secondary Outcomes (5)

  • Mean deviation

    one month, three months, six months, one year, two years, three years

  • The thickness of retinal nerve fiber layer (RNFL)

    one month, three months, six months, one year, two years, three years

  • The thickness of ganglion cell complex (GCC)

    one month, three months, six months, one year, two years, three years

  • Number of eye drops

    one month, three months, six months, one year, two years, three years

  • Adverse event

    one month, three months, six months, one year, two years, three years

Study Arms (2)

Lens extraction combined with goniosynechialysis group

ACTIVE COMPARATOR

One hundred and fifty-eight patients with advanced angle-closure glaucoma underwent phacoemulsification combined with goniosynechialysis.

Procedure: Lens extraction combined with goniosynechialysis

Trabeculectomy Group

ACTIVE COMPARATOR

One hundred and fifty-eight patients with advanced angle-closure glaucoma underwent trabeculectomy.

Procedure: Trabeculectomy surgery

Interventions

The patients enrolled underwent phacoemulsification combined with goniosynechialysis surgery.

Lens extraction combined with goniosynechialysis group

The patients enrolled underwent trabeculectomy surgery

Trabeculectomy Group

Eligibility Criteria

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

You may qualify if:

  • Age between 40 years old to 80 years old
  • more than 180-degree synechial closure of anterior chamber angle on gonioscopy
  • IOP higher than 21mmHg under the use of more than two anti-glaucoma eye drops
  • mean deviation of visual field worse than -12dB on Humphrey 24-2
  • phakic eyes

You may not qualify if:

  • Snellen visual acuity worse than 0.02
  • history of ocular trauma
  • uveitis
  • previous ocular surgeries
  • significant conjunctival scar
  • visible neovascular on iris or anterior chamber angle
  • other severe eye diseases that would affect visual function significantly, such as age-related macular degeneration and pathogenic myopia.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Eye & ENT Hospital

Shanghai, 200031, China

RECRUITING

MeSH Terms

Conditions

Glaucoma, Angle-Closure

Condition Hierarchy (Ancestors)

GlaucomaOcular HypertensionEye Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 3, 2021

First Posted

January 11, 2021

Study Start

January 30, 2021

Primary Completion

December 1, 2024

Study Completion

December 1, 2024

Last Updated

March 1, 2023

Record last verified: 2023-02

Locations