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Active, not recruitingNCT07787377Updated Aug 26, 2026

Comparison of Visual Outcomes of Pars Plana Vitrectomy With and Without Injection Clexane for Rhegmatogenous Retinal Detachment Proliferative Vitreoretinopathy

An interventional study of Enoxaparin Sodium and Pars Plana Vitrectomy in Rhegmatogenous Retinal Detachment With Grade C Proliferative Vitreoretinopathy, sponsored by Lahore General Hospital. Active, not recruiting at 1 site in Pakistan. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-26.

Sponsored by Lahore General Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled May 2026, registered Aug 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This interventional prospective study was conducted in the Department of Ophthalmology at Lahore General Hospital, Lahore. The study included 60 male and female patients aged 18-65 years who had rhegmatogenous retinal detachment associated with grade C proliferative vitreoretinopathy (PVR) and who met the predefined eligibility criteria.

All participants underwent pars plana vitrectomy (PPV) for retinal detachment repair. Participants were treated either with enoxaparin sodium (Clexane) added during surgery or with the same surgical procedure without enoxaparin sodium. The study was designed to determine whether the use of enoxaparin sodium during PPV could improve postoperative visual outcome compared with PPV performed without enoxaparin. Enoxaparin was evaluated because of its anticoagulant and anti-inflammatory properties and its possible role in reducing postoperative inflammatory changes associated with proliferative vitreoretinopathy.

Visual acuity was assessed before surgery and after surgery using a Snellen visual acuity chart. Relevant demographic and clinical information, ophthalmic examination findings, diagnosis, surgical procedure, preoperative visual acuity, postoperative visual acuity, and treatment outcome were recorded. The main comparison between the two study groups was the postoperative visual acuity following pars plana vitrectomy with versus without intraoperative enoxaparin sodium.

02

Conditions studied

  • Rhegmatogenous Retinal Detachment With Grade C Proliferative Vitreoretinopathy

Keywords

  • Rhegmatogenous Retinal Detachment
  • Proliferative Vitreoretinopathy
  • Grade C Proliferative Vitreoretinopathy
  • Pars Plana Vitrectomy
  • Enoxaparin Sodium
03

In context

Vitreoretinopathy, Proliferative

43 studies on the registry are indexed under Vitreoretinopathy, Proliferative; 11 are open to participants now.

This study's enrollment of 60 is close to the median of 64 across 30 interventional studies indexed under Vitreoretinopathy, Proliferative.

Browse Vitreoretinopathy, Proliferative studies →

Lead sponsor

Lahore General Hospital is the lead sponsor of 32 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male or female patients aged 18-65 years.
  • Rhegmatogenous retinal detachment with grade C proliferative vitreoretinopathy in the study eye.
  • Patients with a clear crystalline lens or pseudophakia in the study eye.

Exclusion criteria

Exclusion Criteria:

  • Giant retinal tear in the study eye measuring more than 3 clock hours.
  • Patients scheduled for combined pars plana vitrectomy and cataract surgery for retinal detachment repair in the study eye.
  • Chronic inflammatory condition involving the study eye.
  • History of perforating or non-perforating ocular trauma in the study eye.
  • Cataract surgery within the preceding 3 months in the study eye.
  • Previous retinal procedures in the study eye within the preceding 6 months, including laserpexy, cryopexy, intravitreal gas injection, anti-vascular endothelial growth factor injection, or injection.
  • Single-eyed patients, defined in the synopsis as having best-corrected visual acuity in the fellow eye of >1.0 logMAR, \<0.1 decimal, \<1/10, or \<6/60 Snellen fraction.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Group Enoxaparin Sodium

    Participants underwent pars plana vitrectomy for rhegmatogenous retinal detachment with grade C proliferative vitreoretinopathy. Enoxaparin sodium 40 mg/0.04 mL was admixed in the intraoperative infusion bottle during surgery.

    Drug: Enoxaparin Sodium · Procedure: Pars Plana Vitrectomy

  • Active comparator
    Group Without Enoxaparin Sodium

    Participants underwent pars plana vitrectomy for rhegmatogenous retinal detachment with grade C proliferative vitreoretinopathy without enoxaparin sodium/Clexane in the intraoperative infusion bottle.

    Procedure: Pars Plana Vitrectomy

Interventions

  • Enoxaparin sodium 40 mg/0.04 mL was added to the infusion bottle used during pars plana vitrectomy.

  • ProcedurePars Plana Vitrectomy

    Participants underwent pars plana vitrectomy for rhegmatogenous retinal detachment with grade C proliferative vitreoretinopathy.

06

What researchers measure

Primary outcomes

  1. Postoperative Visual Acuity

    Postoperative distance visual acuity was assessed using a Snellen visual acuity chart and compared between participants undergoing pars plana vitrectomy with intraoperative enoxaparin sodium and those undergoing pars plana vitrectomy without enoxaparin sodium.

    Time frame: 3 months after surgery

07

Study locations

1 site
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started May 2026 (actual). Primary completion is estimated for Oct 2026, 5 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 22, 2026
First posted
Aug 26, 2026
StartActual
May 1, 2026
Primary completionEst.
Oct 30, 2026
CompletionEst.
Oct 30, 2026
Last update
Aug 26, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 26, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07787377
Lead sponsor
Lahore General Hospital
Responsible party
Muhammad Irfan Jamil (Principal Investigator, Lahore General Hospital) — Principal investigator
First posted
Aug 26, 2026
Start date
May 1, 2026
Primary completion
Oct 30, 2026 (estimated)
Completion
Oct 30, 2026 (estimated)
Last update
Aug 26, 2026

Study contacts

Ahmad Fauzan
principal investigator · Lahore General Hospital, Lahore

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Enoxaparin sodium

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