A Multicenter, Double-Blind, Randomized, Placebo-Controlled, 12-Week, Dose-Range-Finding Trial of YKP10811 Capsules Administered Once Daily to Subjects With Chronic Idiopathic Constipation

Medex Healthcare Research, Inc., New York

NY Scientific, Brooklyn

Clinical Trials Research Services, LLC, Pittsburgh

Clinical Associates Ambulatory Surgical Center, Towson

Digestive and Liver Disease Specialists, Norfolk

Health Research of Hampton Roads, Inc., Newport News

PMG Research of Winston-Salem, Winston-Salem

PMG Research of Charlotte, Concord

PMG Research of Charlotte, Charlotte

PMG Research of Hickory, LLC, Hickory

Gastrointestinal Specialists of Georgia, Marietta

North Georgia Clinical Research, Woodstock

River Birch Research Alliance, LLC, Blue Ridge

Gastroenterology Associates of Central Georgia, LLC, Macon

Palm Springs Research Institute, Hialeah

The Clinical Research Institute, Miami

Prestige Clinical Research Center Inc., Miami

Clinical Research Trials of Florida, Inc., Tampa

Physicians Regional Medical Group, Naples

Meridien Research, Bradenton

Advanced Gastroenterology Associates, LLC, Palm Harbor

Alliance Clinical Research, Birmingham

Alpha Clinical Research, LLC, Clarksville

Columbus Clinical Research Inc., Columbus

Consultants for Clinical Research, Cincinnati

Hilltop Physicians IN / Hightop Medical Research Center, Cincinnati

New Horizons Clinical Research, Cincinnati

Dayton Gastroenterology, Inc., Beavercreek

Clinical Research Advantage, Inc., Evansville

University of Michigan Health System, Ann Arbor

Health Concepts, Rapid City

May Medical Center, Chicago

Pharmakon Inc., Evergreen Park

Sundance Clinical Research, LLC, St Louis

KAMP Medical Research, Inc., Natchitoches

Applied Research Center Arkansas, Inc., Little Rock

COR Clinical Research, LLC, Oklahoma City

Options Health Research, LLC, Tulsa

Digestive Health Specialists of Tyler, LLP, Tyler

Houston Endoscopy & Research Center, Houston

MW Clinical Research Center, Beaumont

Sun Research Institute, San Antonio

Radiant Research Inc., San Antonio

Austin Center for Clinical Research, Austin

Clinical Research Advantage, Inc. / Colorado Springs Health Partners, SW, Colorado Springs

Advanced Research Institute, Ogden

Clinical Research Advantage, Inc. / Central Phoenix Medical Clinic, LLC, Phoenix

Arizona Research Center, Phoenix

Clinical Research Advantage, Inc. / Warner Family Practice, PC, Chandler

Connect Clinical Research Center, Chandler

HBSA, A Supporting Organization of Pacific Institute for Research and Evaluation, Albuquerque

Clinical Research Advantage, Inc., Henderson

AB Clinical Trials, Las Vegas

Clinical Research Center of Nevada, Las Vegas

Las Vegas

Precision Research Institute, Chula Vista

Triwest Research Associates, LLC, El Cajon

Diagnamics Inc., Encinitas

Alliance Clinical Research, Oceanside

Therapeutic Research Institute of Orange County, Laguna Hills

Digestive & Liver Disease Specialists, A Medical Group, Inc., Anaheim

Clinical Trials Research, Lincoln

Northern California Research, Sacramento

The Oregon Clinic, PC - Gastroenterology West, Portland

Sunstone Medical Research, LLC, Medford

The Research Institute, Springfield

Coastal Research Associates, Inc., Weymouth

AGA Clinical Research Associates, LLC, Egg Harbor

Partners in Clinical Research, LLC, Cumberland