EMPOWER Clinical Trial: Vagal Blocking for Obesity Control
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.
- Charles J Billington, MD
VA Medical Center, Minneapolis, MN / University of Minnesota
Principal Investigator - Michael Sarr, MD
Mayo Clinic
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
15 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Institute of Weight Control
Sydney, New South Wales, Australia
- Adelaide Bariatric Center - Flinders Private Hospital
Bedford Park, South Australia, Australia
- Honorhealth (formerly Scottsdale Bariatric Center)
Scottsdale, Arizona, United States
- Scripps Clinic
La Jolla, California, United States
- University of California, Irvine Medical Center
Orange, California, United States
- Stanford University Medical Center
Stanford, California, United States
- Cleveland Clinic - Florida
Weston, Florida, United States
- Johns Hopkins
Baltimore, Maryland, United States
- Tufts New England Medical Center
Boston, Massachusetts, United States
- University of Minnesota
Minneapolis, Minnesota, United States
- Mayo Clinic
Rochester, Minnesota, United States
- Washington University School of Medicine
St Louis, Missouri, United States
- Cleveland Clinic - Ohio
Cleveland, Ohio, United States
- Oregon Health & Science University
Portland, Oregon, United States
- Virginia Commonwealth University
Richmond, Virginia, 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 Aug 2007
- Primary completion
- 31 Oct 2009
- Completion
- 31 May 2018
- Last update posted
- 24 Aug 2018
- Registered enrollment
- 294
- Registry id
- NCT00521079
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.