419
Participants
Start Date
May 21, 2020
Primary Completion Date
October 19, 2021
Study Completion Date
November 3, 2021
Gefapixant
Administered twice daily as an oral tablet of 45 mg
Placebo
Administered twice daily as a placebo oral tablet matching gefapixant
Zhytomyr Central City Hospital No. 1 ( Site 2807), Zhytomyr
Montefiore Einstein Center ( Site 0022), The Bronx
Pneumologisches Studienzentrum ( Site 0911), Berlin
Clinica Ricardo Palma ( Site 0601), San Isidro
Asociacion Civil por la Salud ( Site 0602), Lima
Hospital Nacional Arzobispo Loayza ( Site 0607), Lima
Hospital Clinico Universitario de Santiago ( Site 1820), Santiago de Compostela
Clinica Belen ( Site 0604), Piura
"Private Small-Scale Enterprise Medical Centre Pulse ( Site 2809)", Vinnytsia
Vinnytsia Regional Clinical Hospital n.a. M.I. Pyrogov ( Site 2814), Vinnytsia
Chesapeake Clinical Research, Inc ( Site 0037), White Marsh
Tidewater Physician Multispecialty Group, PC ( Site 0048), Williamsburg
Wonju Severance Christian Hospital ( Site 1502), Wŏnju
Hospital General Universitario Gregorio Maranon ( Site 1823), Madrid
Hospital Ramon y Cajal ( Site 1815), Madrid
Hospital Clinico San Carlos ( Site 1822), Madrid
American Health Research ( Site 0047), Charlotte
Allergic Disease and Asthma Center ( Site 0027), Greenville
Pneumologicum im Suedstadtforum ( Site 0916), Hanover
Zentrum fuer ambulante pneumologische Forschung Marburg GbR ( Site 0910), Marburg
Poltava City Clinical Hospital -1 ( Site 2813), Poltava
Volyn Regional Clinical Hospital ( Site 2816), Lutsk
Springfield Clinic, LLP ( Site 0018), Springfield
Ballenberger Freytag Wenisch Institut fuer klinische Forschung GmbH ( Site 0917), Neu-Isenburg
Odesa regional clinical hospital ( Site 2804), Odesa
City Polyclinic N20 ( Site 2806), Odesa
MI Zaporizhzhia City Multispecialty Clinical Hospital 9 ( Site 2803), Zaporizhzhia
Kherson City Clinical Hospital n.a. Y.Y. Karabelesh ( Site 2811), Kherson
Allergy & Asthma Center ( Site 0001), Waco
Diagnostics Research Group ( Site 0021), San Antonio
Pulmonary Associates, PA ( Site 0016), Phoenix
Albuquerque Clinical Trials ( Site 0030), Albuquerque
Center for Clinical Trials, LLC ( Site 0035), Paramount
Northwest Research Center ( Site 0039), Portland
Clinical Research Institute of Southern Oregon, PC ( Site 0028), Medford
Bellingham Asthma & Allergy ( Site 0011), Bellingham
MedPlus Medicina Prepagada S.A. ( Site 0402), Bogotá
Centro Especializado en Enfermedades Pulmonares. ( Site 0410), Bogotá
Moscow City Clinical Hospital Number 13 ( Site 1460), Moscow
Open Joint Stock Company Clinical and Diagnostic Center Euromedservice ( Site 1467), Moscow
SBCIH of the Yaroslavl region Central city hospital ( Site 1429), Yaroslavl
SPb SBHI City Consultative Diagnostic Center 1 ( Site 1409), Saint Petersburg
GBUZ LO Center of Occupational Pathology ( Site 1447), Saint Petersburg
Limited Liability Company Kurator ( Site 1425), Saint Petersburg
SEIHPE Saint Petersburg SMU ( Site 1435), Saint Petersburg
advisory diagnostic center No.85 ( Site 1455), Saint Petersburg
Healthy Medical Center S.A.S ( Site 0404), Zipaquirá
RSBHI Belgorod regional clinical hospital of Prelate Ioasafa ( Site 1417), Belgorod
Voronezh Regional Clinical Hospital #1 ( Site 1441), Voronezh
Saratov City Clinical Hospital 2 n.a. V.I. Razumovsky ( Site 1453), Saratov
State health Agency Ulyanovsk regional clinical hospital ( Site 1415), Ulyanovsk
GBUZ Regional Clinical Hospital 3 ( Site 1421), Chelyabinsk
Family Clinic ( Site 1465), Yekaterinburg
Clinic of FSBEI HE OmSMU of Minzdrav ( Site 1439), Omsk
City Clinical Hospital No. 3 them. M. A. Podgorbunskogo ( Site 1401), Kemerovo
Instituto Neumologico del Oriente ( Site 0403), Floridablanca
AAPRI Clinical Research Institute ( Site 0051), Lincoln
Recherche GCP Research ( Site 0802), Montreal
Diex Recherche Quebec Inc ( Site 0805), Québec
Clinique Specialisee en Allergie de la Capitale - CSAC ( Site 0800), Québec
Fundacion Centro de Investigacion Clinica CIC ( Site 0401), Medellín
Universidad Pontificia Bolivariana - Clinica Universitaria Bolivariana ( Site 0408), Medellín
Celan SA ( Site 0500), Guatemala City
Clinica Medica Especializada en Neumologia y Tisiologia ( Site 0504), Guatemala City
Clinica Medica Especializada en Neumologia ( Site 0502), Guatemala City
Private Clinic ( Site 0505), Guatemala City
Clinica Privada Dr. Jose Francisco Flores Lopez ( Site 0503), Guatemala City
Instituto De Alergias y Enfermedades Respiratorias ( Site 0501), Guatemala City
Centrum Medyczne Pratia Bydgoszcz ( Site 1206), Bydgoszcz
Specjalistyczny osrodek .All-Med. Grazyna Pulka ( Site 1203), Krakow
NZOZ CENTRUM ALERGOLOGII ( Site 1207), Lublin
RCMed ( Site 1202), Sochaczew
Centrum Medyczne Puławska ( Site 1215), Warsaw
Centrum Medyczne Lucyna Andrzej Dymek - Zawadzkie ( Site 1200), Zawadzkie
Centrum Medyczne Pratia Katowice ( Site 1205), Katowice
Centrum Medyczne Silmedic Sp z o o ( Site 1204), Katowice
Gyncentrum Clinic Sp. z o.o. ( Site 1208), Katowice
Asan Medical Center ( Site 1505), Songpagu
Seoul National University Hospital ( Site 1501), Seoul
Severance Hospital Yonsei University Health System ( Site 1503), Seoul
Konkuk University Medical Center ( Site 1504), Seoul
Hospital Parc Tauli ( Site 1821), Sabadell
F.G.Yanovskyy Institute of Phthisiology and Pulmonology ( Site 2802), Kyiv
F.G.Yanovskyy Institute of Phthisiology and Pulmonology ( Site 2808), Kyiv
SE Road Clinical Hospital 2 of Kyiv station ( Site 2812), Kyiv
SE O.S.Kolomiychenko Institute of Otolaryngology of NAMS of Ukraine ( Site 2817), Kyiv
Medical Center of LLC Medical Clinic Blahomed ( Site 2815), Kyiv
MeDiNova Yorkshire Dedicated Research Centre ( Site 2715), Shipley
West Walk Surgery ( Site 2700), Yate
Medinova South London Research Centre ( Site 2706), Orpington
Medinova North London Dedicated Research Centre ( Site 2705), Northwood
Merck Sharp & Dohme LLC
INDUSTRY