ClinicalTrials.Veeva

Menu

Primary Tube Versus Trabeculectomy Study

University of Miami logo

University of Miami

Status and phase

Completed
Phase 4

Conditions

Glaucoma

Treatments

Drug: Mitomycin C
Procedure: Tube shunt surgery
Procedure: Trabeculectomy

Study type

Interventional

Funder types

Other
Industry
NIH

Identifiers

NCT00666237
20071037
EY014801 (Other Grant/Funding Number)

Details and patient eligibility

About

The purpose of the Primary Tube Versus Trabeculectomy (PTVT) Study is to compare the long-term safety and efficacy of nonvalved tube shunt surgery to trabeculectomy with mitomycin C in eyes that have not had previous ocular surgery.

Enrollment

242 patients

Sex

All

Ages

18 to 85 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age 18-85 years
  • Glaucoma that is inadequately controlled on tolerated medical therapy with Intraocular Pressure (IOP) greater than or equal to 18 mm Hg and less than or equal to 40 mm Hg
  • No previous incisional ocular surgery

Exclusion criteria

  • Unwilling or unable to give consent, unwilling to accept randomization, or unable to return for scheduled protocol visits
  • Pregnant or nursing women
  • No light perception vision
  • Active iris neovascularization or active proliferative retinopathy
  • Iridocorneal endothelial syndrome
  • Epithelial or fibrous ingrowth
  • Chronic or recurrent uveitis
  • Steroid-induced glaucoma
  • Severe posterior blepharitis
  • Unwilling to discontinue contact lens use after surgery
  • Previous cyclodestructive procedure
  • Conjunctival scarring from prior ocular trauma or cicatrizing disease precluding a superior trabeculectomy
  • Functionally significant cataract
  • Need for glaucoma surgery combined with other ocular procedures or anticipated need for additional ocular surgery

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

242 participants in 2 patient groups

Tube shunt surgery group
Experimental group
Description:
Participants in this group will receive a tube shunt surgery (Baerveldt Glaucoma implant).
Treatment:
Procedure: Tube shunt surgery
Trabeculectomy with Mitomycin C
Experimental group
Description:
Participants in this group will receive a Trabeculectomy surgery with Mitomycin C
Treatment:
Drug: Mitomycin C
Procedure: Trabeculectomy

Trial documents
1

Trial contacts and locations

16

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems