JPRN‐UMIN000008981.

Trial name or title	Prospective comparative study of the Ex‐PRESS mini glaucoma shunt with standard trabeculectomy.
Methods	Study design: "interventional, randomized, parallel, open label clinical trial" Number randomized: 200 participants (number of eyes not reported) total; not reported by intervention group Unit of analysis: not reported Power calculation: not reported
Participants	Country: Japan Inclusion criteria: open‐angle glaucoma; participants to be 20 years and older Exclusion Criteria: angle‐closure glaucoma; uveitis
Interventions	Intervention 1: trabeculectomy + Ex‐PRESS mini shunt implantation Intervention 2: trabeculectomy Length of follow‐up: planned: not reported
Outcomes	Primary outcome, as defined in study reports: IOP reduction Secondary outcomes, as defined in study reports: not reported Adverse events reported: not reported Intervals at which outcomes assessed: not reported
Starting date	1 October 2012
Contact information	Hideki Mochizuki: mochizuki‐h@hiroshima‐u.ac.jp 1‐2‐3 Kasumi Minamiku Hiroshima, Japan Hiroshima University Dept. of Ophthalmology
Notes	Funding source: self funding Last updated: 3 June 2014 This study is currently recruiting participants.