NCT05318742

Brief Summary

In this randomized clinical trial, the authors compare two cohorts receiving different endolaser spot amounts with similar laser settings in PDR subjects naïve to PRP undergoing PPV for the indication of VH.

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
150

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2022

Typical duration 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 1, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

February 15, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 8, 2022

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 15, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 15, 2024

Completed
Last Updated

April 8, 2022

Status Verified

April 1, 2022

Enrollment Period

1.9 years

First QC Date

January 1, 2022

Last Update Submit

April 6, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postoperative Vitreous Hemorrhage

    The primary outcome measure of the trial was the incidence of postoperative VH during the 6-month trial period between treatment groups

    6 months

Secondary Outcomes (1)

  • Postoperative LogMAR visual acuity

    6 months

Study Arms (2)

Fewer Laser Spots

ACTIVE COMPARATOR

Group A patients underwent endolaser PRP with a range of 200-300 shots during PPV

Procedure: laser

Higher Laser Spots

ACTIVE COMPARATOR

Group B patients underwent endolaser PRP with a range of 500-600 shots during PPV

Procedure: laser

Interventions

laserPROCEDURE

Endolaser photocoagulation during PPV

Fewer Laser SpotsHigher Laser Spots

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The subject has type I or II diabetes mellitus
  • The age of the subject is \> 18 years old
  • Snellen best-corrected visual acuity ranges from 20/40 to hand motions at one foot in the research eye
  • Proliferative diabetic retinopathy with a vitreous hemorrhage is present in the research eye, and the vitreous hemorrhage is considered to be the primary cause for the subject's reduced vision
  • The subject is panretinal photocoagulation-naïve
  • The vitreoretinal adhesion is Grade 0 or 1 according to the classification system published by Ahn et al in the research eye

You may not qualify if:

  • The research eye had formerly undergone anterior or posterior vitrectomy.
  • An opacity of the anterior segment (cornea or lens) is thought to be responsible for two or more lines of decreased visual acuity in the research eye (cataract, corneal scar, ectasia, etc.)
  • Optic nerve or retina disease unconnected to diabetes mellitus is thought to be responsible for two or more lines of decreased visual acuity in the research eye (optic neuritis, macular degeneration, glaucoma, etc.)
  • Amblyopia or a non-ocular source (i.e., cerebrovascular accident) is considered to be responsible for two or more lines of decreased visual acuity in the research eye
  • Neovascular glaucoma with an elevated intraocular pressure (\> 30 mm Hg) is present in the research eye
  • Uncontrolled systemic hypertension (systolic \> 200 mmHg or diastolic \> 120 mmHg) is present

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

La Carlota Hospital

Montemorelos, Nuevo León, 67512, Mexico

RECRUITING

MeSH Terms

Interventions

Lasers

Intervention Hierarchy (Ancestors)

Optical DevicesEquipment and SuppliesRadiation Equipment and Supplies

Study Officials

  • Sloan Rush, MD

    panhandle eye group

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 1, 2022

First Posted

April 8, 2022

Study Start

February 15, 2022

Primary Completion

January 15, 2024

Study Completion

January 15, 2024

Last Updated

April 8, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations