The AVB Study: Prospective Study Comparing the Ahmed Valve and the Baerveldt Implant for Treating Refractory Glaucoma
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Iqbal K Ahmed, MD
University of Toronto Department of Ophthalmology & Vision Sciences
Study Chair - James C Tsai, MD
Yale Ophthalmology & Visual Science
Principal Investigator - Jeffrey A Kammer, MD
Department of Ophthalmology and Visual Sciences: Vanderbilt University, School of Medicine
Principal Investigator - Jeffrey W Kalenak, MD
Drs. Massaro & Kalenak, SC
Principal Investigator - Juan J Mura, MD
Clinic of Las Condes
Principal Investigator - Louis B Cantor, MD
Department of Ophthalmology, Indiana University
Principal Investigator - Panos G Christakis, BS
Yale University
Study Director - Paul J Harasymowycz, MD
University of Montreal: Department of Ophthalmology
Principal Investigator
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
6 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Credit Valleyec
Toronto, Ontario, Canada
- Montreal Glaucoma Institute
Montreal, Quebec, Canada
- Clinic of Las Condes
Santiago, Chile
- Eugene and Marilyn Glick Eye Institute
Indianapolis, Indiana, United States
- Vanderbilt Eye Institute
Nashville, Tennessee, United States
- Drs. Massaro and Kalenak
Milwaukee, Wisconsin, United States
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 31 Jul 2005
- Primary completion
- 30 Apr 2014
- Completion
- 30 Apr 2015
- Last update posted
- 13 Mar 2018
- Registered enrollment
- 238
- Registry id
- NCT00940823
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.