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Sponsored by: |
National University Hospital, Singapore |
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Information provided by: | National University Hospital, Singapore |
ClinicalTrials.gov Identifier: | NCT00273221 |
The aim of this study is to compare the effectiveness and safety of combined phacoemulsification, posterior chamber intraocular lens implantation , trabeculectomy (phacotrabeculectomy) with phacoemulsification, intraocular lens implantation and glaucoma drainage device(phacotube) in the early and intermediate control of intraocular pressure(IOP) in patients with primary open angle and angle closure glaucoma.
Condition | Intervention | Phase |
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Glaucoma Cataract |
Procedure: Glaucoma Implant Surgery Procedure: trabeculectomy Procedure: phacoemulsification |
Phase IV |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Safety/Efficacy Study |
Official Title: | Combined Phacoemulsification and Glaucoma Implant Surgery Versus Combined Phacoemulsification and Trabeculectomy: A Randomized Controlled Trial |
Estimated Enrollment: | 50 |
Study Start Date: | July 2005 |
Estimated Study Completion Date: | July 2006 |
Studies have pointed out racial differences in the outcome of conventional filtration surgery. Glaucoma drainage implants have been found to do well in Asian eyes but no randomized controlled trial is available to support this claim. Objectives: It is the aim of this study to compare the effectiveness and safety of combined phacoemulsification, posterior chamber intraocular lens implantation , trabeculectomy (phacotrabeculectomy) versus phacoemulsification, intraocular lens implantation and glaucoma drainage device(phacotube) in the early and intermediate control of intraocular pressure(IOP) in patients with primary open angle and angle closure glaucoma. The secondary objective is to look into the post-operative complications encountered in phacotrabeculectomy and phacotube including the additional interventions (laser suture lysis, bleb needling, antimetabolite injections, etc.) applied in both procedures being studied Study Design. Randomized controlled trial. Methods. A total of 50 Asian subjects, 21 years old and above diagnosed with primary open/angle closure glaucoma, inadequately controlled by laser and medical treatment, with significant cataract and no previous eye surgery will be randomized to two types of combined procedures, phacotrabeculectomy and phacotube. Primary outcome measure is intraocular pressure and secondary outcome measures will be visual acuity, anterior chamber depth, visual field stability or progression, glaucoma medication requirement, operative and post-operative complications and additional, secondary interventions(e.g. laser suture lysis, bleb needling, 5-FU injections, anterior chamber reformation). All subjects will be followed up for a period of 1 year.This trial may define the role of GDI as a primary surgical option for Asian patients and the first randomized clinical trial in Asia to compare two combined procedures for glaucoma and cataract namely phacotrabeculectomy and phaco-glaucoma drainage implant surgery.
Ages Eligible for Study: | 21 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Ø 21 years old and above Ø Primary Open Angle Glaucoma with Shaffer grade 2 or better for 360 degrees Ø Primary Angle Closure Glaucoma (occludable angles +/- PAS) Ø Inadequate IOP control despite maximum medical treatment (using at least 2 types or more antiglaucoma medications) and/or laser treatment in the presence of glaucomatous optic neuropathy on optic nerve head evaluation and corresponding visual field findings Ø Visually significant cataract with visual acuity of less than or equal to 6/12 Ø No corneal disease Ø Willing to be followed up for 1 year duration post-operatively Ø Informed consent
Exclusion Criteria:
Contact: Paul TC Chew, A/Prof. | 67725317 ext 5317 | ophchew@nus.edu.sg |
Contact: Maria Cecilia D Aquino, MD | 67725317 ext 5317 | cel_aq@yahoo.com |
Singapore | |
National University Hospital | Recruiting |
5 Lower Kent Ridge Road, Singapore, 119074 | |
Contact: Paul TC Chew, A/Professor 67725317 ext 5317 ophchew@nus.edu.sg | |
Contact: Maria Cecilia D Aquino, MD 67725317 ext 5317 cel_aq@yahoo.com | |
Principal Investigator: Paul TC Chew, A/Prof | |
Sub-Investigator: Maria Cecilia D Aquino, MD | |
Sub-Investigator: Jovina L See, MD | |
Sub-Investigator: Winifred Patricia Nolan, MD |
Principal Investigator: | Paul TC Chew, A/Prof | National University Hospital, Singapore |
Study ID Numbers: | DSRB-A/05/196 |
Study First Received: | January 6, 2006 |
Last Updated: | May 21, 2008 |
ClinicalTrials.gov Identifier: | NCT00273221 |
Health Authority: | Singapore: Health Sciences Authority |
Glaucoma Cataract |
Glaucoma Eye Diseases Cataract |
Lens Diseases Hypertension Ocular Hypertension |