17,535
Participants
Start Date
March 29, 2017
Primary Completion Date
December 21, 2021
Study Completion Date
December 21, 2021
Clostridium difficile vaccine
Toxoid-based Clostridium difficile vaccine
Placebo
Normal saline solution (0.9% sodium chloride)
Hospital Cayetano Heredia, San Martín de Porres
Clinica Internacional S.A, Lima
Far Eastern Memorial Hospital, New Taipei City
Institut Jules Bordet, Brussels
Budapesti Szent Ferenc Korhaz, Kardiologiai Rehabilitacios Osztaly, Budapest
Del-pesti Centrumkorhaz - Orszagos Hematologiai es Infektologiai Intezet, I. Belgyogyaszati Osztaly, Budapest
Orszagos Koranyi Pulmonologiai Intezet, VI. Osztaly, Budapest
Semmelweis Egyetem III. Sz. Belgyogyaszati Klinika, Budapest
MC 'Cardiohelp' EOOD, Sofia
"Acibadem City Clinic University Hospital EOOD", Sofia
Acibadem City Clinic Tokuda Ead, Sofia
"MHAT Sveta Anna - Sofia AD, Clinic of Internal Diseases", Sofia
Australian Clinical Research Network, Maroiubra
Maroubra Medical Centre, Maroubra
Australian Clinical Research Network, Maroubra
University Clinic Pharmacy, Westmead
Westmead Hospital, Westmead
Paratus Clinical Pty Ltd, Kanwal
UZ Leuven, Leuven
Emeritus Research, Camberwell
Eastern Health - Box Hill Hospital, Box Hill
Barwon Health, Geelong
MHAT ''Sv.Ivan Rilski-Kozloduy'' EOOD; Internal Department, Kozloduy
"MHAT Sv. Nikolay Chudotvorets EOOD", Lom
"MHAT ''Sveta Petka AD", Vidin
CRU Hungary Kft., Encs
CHU de Liège - Domaine universitaire du Sart Tilman, Liège
"UMHAT Sveti Georgi EAD", Plovdiv
ClinTrial Audit Kft., Klinikai Farmakologiai Intezet, Vedooltasi Ambulancia, Debrecen
Austrials Pty Ltd, Sherwood
Mater Misericordiae Ltd & Mater Medical Research Institute Ltd, South Brisbane
MC Medica Plus OOD, Veliko Tarnovo
''Medical Center-1-Sevlievo'' EOOD, Sevlievo
"SHATPD-Troyan EOOD", Troyan Municipality
"UMHAT Dr. Georgi Stranski EAD, Second Psychiatric Clinic of general psychiatry and dependence", Pleven
Linear Clinical Research, Nedlands
"MHAT- Dr. Hristo Stambolski EOOD", Kazanlak
Bajai Szent Rokus Korhaz, II Belgyogyaszat, Baja
"Center for Mental Health - Ruse EOOD", Rousse
SHATPPD Dr. Dimitar Gramatikov - Ruse EOOD, Rousse
Somogy Megyei Kaposi Mor Oktato Korhaz, Infektologiai Osztaly, Kaposvár
MHAT -Silistra AD, Silistra
DRC Kft., Balatonfüred
MC ''Tsaritsa Yoanna''EOOD, Sliven
National Taiwan University Hospital, Taipei
Emovis GmbH, Berlin
Karolinska Trial Alliance, KTA Prim Sabbatsbergs sjukhus, Stockholm
Centro de Investigaciones Biomédicas - CIBIOM/Clinica Peruano Americana S.A, Trujillo, La Libertad
Meridian Clinical Research, LLC, Endwell
Meridian Clinical Research LLC, Binghamton
Rochester Clinical Research, Rochester
Fakultni nemocnice v Motole, Prague
Complejo Hospitalario Universitario A Coruna, A Coruña
VA Pittsburgh Healthcare System, Pittsburgh
Preferred Primary Care Physicians, Inc., Pittsburgh
Korea University Ansan Hospital, Ansan
Preferred Primary Care Physicians, Inc., Uniontown
The Catholic University of Korea, St. Vincent's Hospital, Gyeonggi-do
Westminster Family Medicine, Erie
Liberty Family Practice, Erie
Capital Area Research, LLC, Camp Hill
Universitaetsmedizin Rostock, Rostock
Lehigh Valley Health Network/Network Office of Research and Innovation, Allentown
Drexel University College of Medicine, Philadelphia
Turku Vaccine Research Clinic, Turku
CHU DIJON BOURGOGNE- Hopital Francois Mitterrand, Dijon
Luminis Health Anne Arundel Medical Center Infusion Center, Annapolis
Luminis Health Anne Arundel Medical Center, Annapolis
Luminis Health Research Institute: Research Office, Annapolis
Gachon University Gil Medical Center, Incheon
Clinical Alliance for Research & Education - Infectious Diseases, LLC, Annandale
Inha University Hospital, Incheon
Virginia Research Center LLC, Midlothian
Salem VAMC, Salem
Oblastni nemocnice Pribram, a.s., Pribram I.
Yonsei University Wonju Severance Christian Hospital, Wŏnju
Praxis Dr. med. J. Springub/ W. Schwarz, Westerstede
Studienzentrum Nordwest, Westerstede
PMG Research of Winston-Salem, LLC, Winston-Salem
Progressive Medicine of the Triad, LLC, Winston-Salem
Sarkamed s.r.o., Slaný
PharmQuest, Greensboro
PMG Research of Raleigh, LLC d/b/a PMG Research of Cary, Cary
PMG Research of Raleigh, LLC, Raleigh
Wake Research Associates, LLC, Raleigh
Durham VAMC, Durham
Duke Early Phase Clinical Research, Durham
Duke University Hospital Investigational Drug Services (IDS) Pharmacy, Durham
PMG Research of Rocky Mount, LLC, Rocky Mount
Hospital Universitario de la Princesa, Madrid
Hospital Universitario Gregorio Marañón, Madrid
Hospital Universitario Ramon y Cajal, Madrid
Hospital Universitario Fundacion Jimenez Diaz, Madrid
Pori Vaccine Research Clinic, Pori
PMG Research of Salisbury, LLC, Salisbury
PMG Research of Charlotte, LLC, Charlotte
PMG Research of Wilmington, LLC, Wilmington
Waterway Primary Care LLC DBA Tabor City Family Medicine, Tabor City
PMG Research of Hickory, LLC, Hickory
Coastal Carolina Research Center, North Charleston
Medical Research South, LLC, Charleston
Ordinace vseobecneho praktickeho lekare, Benátky nad Jizerou
Main Street Physician's Care - Waterway, Little River
Atlanta VA Medical Center, Decatur
Clinical Research Atlanta, Stockbridge
Meridian Clinical Research, Savannah
Fleming Island Center for Clinical Research, Fleming Island
Multi-Specialty Research Associates, Inc., Lake City
Progressive Medical Research, Port Orange
Clinical Neuroscience Solutions,Inc., Jacksonville
Malcom Randall VA Medical Center Investigational Drug Services, Gainesville
Malcom Randall VA Medical Center, Gainesville
Southeast Clinical Research, Chiefland
Omega Research Consultants, LLC, DeBary
Accel Research Sites - DeLand Clinical Research Unit, DeLand
Clinical Neuroscience Solutions, Inc. dba CNS Healthcare, Orlando
HMD Research LLC, Orlando
Indago Research & Health Center, Inc, Hialeah
Charisma Medical and Research Center, Miami Lakes
Pines Care Research Center, LLC, Pembroke Pines
Tampere Vaccine Research Clinic, Tampere
Optimus U. Corp., Miami
Finlay Medical Research, Miami
Alliance for Multispecialty Reseach, LLC, Coral Gables
Doctors Research Institute, Miami
Acevedo Clinical Research Associates, Miami
Next Phase Research Alliance, Miami
Ocean Blue Medical Research Center, Inc., Miami Springs
Precision Clinical Research, LLC, Sunrise
Soma Medical Center, West Palm Beach
Florida Sleep Disorder Center of Brandon, Brandon
Teradan Clinical Trials, Brandon
Bay Pines VA Healthcare System, Bay Pines
Innovative Research of West FL., Inc., Clearwater
North Alabama Research Center, LLC, Athens
Medical Affiliated Research Center, Inc., Huntsville
Coastal Clinical Research, LLC, An AMR Company, Mobile
CHRU de Tours- Hopital Bretonneau, Tours
Trinity Clinical Research, Tullahoma
Holston Medical Group, Bristol
Internal Medicine and Pediatric Associates of Bristol, PC, Bristol
PMG Research of Bristol, LLC, Bristol
PMG Research, Inc. d/b/a PMG Research of Knoxville, Knoxville
PMG Research,Inc. d/b/a PMG Research of Knoxville, Knoxville
Clinical Neuroscience Solutions, Inc., Memphis
MedPharmics, Gulfport
Kentucky Pediatric/Adult Research, Bardstown
Central Kentucky Research Associates, LLC, Lexington
Hospital Universitario Virgen Macarena, Seville
Gothia Forum CTC/Sahlgrenska Universitetssjukhuset, Gothenburg
Sahlgrenska Universitetssjukhuset - Ostra Sjukhuset, Gothenburg
Kyungpook National University Hospital, Daegu
Hopital Nord-CHU Saint Etienne, Saint-Priest-en-Jarez
OhioHealth Riverside Methodist Hospital, Columbus
Riverside Methodist Hospital, Columbus
Remington-Davis, Incorporated, Columbus
Great Lakes Medical Research LLC, Mentor
Louis Stokes Cleveland VA Medical Center, Cleveland
University Hospitals Cleveland Medical Center, Cleveland
Velocity Clinical Research, Inc., Cleveland
Aultman Cardiology Clinical Trials, Canton
Aultman Hospital, Canton
Universitaetsklinikum Essen, Klinik fuer Infektiologie, Essen
UC Health Physicians Office Clifton, Cincinnati
University of Cincinnati Medical Center, Cincinnati
Sterling Research Group, Ltd., Cincinnati
University Of Cincinnati-Internal Medicine Division of Digestive Diseases, Cincinnati
PriMED Clinical Research, Dayton
Community Clinical Research Center, Anderson
Hospital Universitari i Politecnic La Fe, Valencia
Infectious Disease of Indiana, PSC, Carmel
St. Vincent Outpatient Treatment Center, Carmel
St. Vincent Hospital & Health Care Center, Indianapolis
St. Vincent Hospital and Health Care Center, Indianapolis
MOC Research, Mishawaka
Deaconess Clinic Mt. Pleasant, Evansville
VA Ann Arbor Healthcare System, Ann Arbor
ClinSite, LLC, Canton
Revival Research Institute, LLC, Sterling Heights
Aa Mrc Llc, Flint
Dong-A University Hospital, Busan
Meridian Clinical Research, Sioux City
Marshfield Medical Center - Marshfield, Marshfield
Mayo Clinic Rochester, Methodist Hospital Campus, Rochester
Mayo Clinic, Rochester
Lillestol Research LLC, Fargo
Mercury Street Medical Group, PLLC, Butte
Bozeman Health Deaconess Hospital d/b/a Bozeman Health Clinical Research, Bozeman
Bozeman Health GI Clinic, Bozeman
Edward Hines Jr VA Hospital, Hines
Christie Clinic, LLC, Champaign
Springfield Clinic Infectious Diseases, Springfield
Center for Outpatient Health, St Louis
Barnes Jewish Hospital, St Louis
Barnes-Jewish Hospital, St Louis
Center for Advanced Medicine, St Louis
Center For Clinical Studies, St Louis
Sundance Clinical Research, St Louis
Infektionskliniken, Malarsjukhuset, Eskilstuna
Doktor Brno s.r.o., Brno
Kokkola Vaccine Research Clinic, Kokkola
Alliance for Multispecialty Research, LLC, Wichita
Barrett Clinic, Omaha
Meridian Clinical Research, LLC, Omaha
Meridian Clinical Research, LLC, Norfolk
MedPharmics, LLC, Metairie
Tandem Clinical Research, LLC, Marrero
Ochsner Center for Primary Care and Wellness, New Orleans
Ochsner Clinic Foundation, New Orleans
Avdelningen for kliniska provningar, S-huset, Örebro
Barnum Medical Research Inc, Natchitoches
Arkansas Gastroenterology, North Little Rock
Baptist Health Center for Clinical Research, Little Rock
Baptist Health Rehabilitation Institute, Little Rock
IPS Research Company, Oklahoma City
Slezska Nemocnice v Opave, prispevkova organizace, Opava
CIC Vaccinologie Cochin- Pasteur 1417, Paris
Synexus US, dba Research Across America, Mesquite
North Texas Infectious Diseases Consultants, P.A., Dallas
Synexus US, LP, Dallas
Texas Health Care, PLLC, Fort Worth
Ventavia Research Group, LLC, Fort Worth
University of North Texas Health Science Center at Fort Worth, Fort Worth
Kelsey Research Foundation, Houston
Kelsey-Seybold Clinic, Houston
Texas Center for Drug Development, Inc., Houston
DM Clinical Research, Tomball
Martin Diagnostic Clinic, Tomball
University of Texas Medical Branch, Galveston
LinQ Research, LLC, Pearland
Clinical Trials of Texas, Inc., San Antonio
Diagnostics Research Group, San Antonio
South Texas Veterans Healthcare System, Audie L Murphy Hospital, San Antonio
Tekton Research, Inc., Austin
Clinical Trial Center University of Colorado Denver, School of Medicine, Aurora
University of Colorado Clinical & Translational Research Center Clinic, Aurora
University of Colorado Clinical & Translational Research Center Outpatient Clinic, Aurora
University of Colorado Denver, School of Medicine, Aurora
University of Colorado Department of AIP 2. Pharmacy Bulk Storage, Aurora
Kaohsiung Veterans General Hospital, Kaohsiung City
Snake River Research, PLLC, Idaho Falls
Advanced Clinical Research, Meridian
Solaris Clinical Research, Meridian
J. Lewis Research Inc. / Foothill Family Clinic Draper, Draper
Advanced Clinical Research/Gut Whisperer, Riverton
J. Lewis Research, Inc. - Jordan River Family Medicine, South Jordan
J. Lewis Research, Inc./Foothill Family Clinic, Salt Lake City
J Lewis Research, Incorporated, Salt Lake City
Phoenix VA Health Care System, Phoenix
Phoenix Clinical LLC, Phoenix
MedPharmics, LLC, Phoenix
Hope Research Institute, Phoenix
The Pain Center of Arizona, Phoenix
Clinical Research Institute of Arizona, LLC, Surprise
The Pain Center of Arizona, Peoria
New Mexico VA Healthcare System, Albuquerque
Academic Medical Research Institute, Los Angeles
Ronald Reagan UCLA Medical Center, Los Angeles
UCLA CTRC Outpatient Unit, Los Angeles
Oulu Vaccine Research Clinic, Oulu
Premier Health Research Center, LLC, Downey
Long Beach Clinical Trials Services, Inc., Long Beach
Long Beach Clinical Trials, Long Beach
VA Long Beach Healthcare System, Long Beach
MUDr. Zakova, s.r.o., Trenčín
California Kidney Specialist, Covina
Usborne Family Medicine, Covina
California Kidney Specialists, San Dimas
Paradigm Clinical Research Centers, Inc., La Mesa
VA San Diego Healthcare System, San Diego
Covigilant Research, LLC, Rancho Mirage
VA Loma Linda Healthcare System Research Pharmacy, Loma Linda
VA Loma Linda Healthcare System, Loma Linda
VA Loma Linda Healthcare System Ambulatory Care System, Redlands
Breakthrough Clinical Trials, San Bernardino
Covigilant Research LLC, Riverside
Alta California Medical Group, Simi Valley
Kaiser Permanente Daly City, Daly City
Veterans Affairs Palo Alto Health Care System, Palo Alto
Kaiser Permanente Walnut Creek, Walnut Creek
Kaiser Permanente Santa Clara, Santa Clara
Kaiser Permanente San Jose, San Jose
VA Northern California Health Care System, Mather
Kaiser Permanente Roseville, Roseville
One Community Health, Sacramento
Kaiser Permanente Sacramento, Sacramento
CTSC Clinical Research Center, Sacramento
Lawrence J. Ellison Ambulatory Care Center, Sacramento
University of California, Davis Medical Center, Sacramento
Kaiser Permanente South Sacramento, Sacramento
Paradigm Clinical Research Centers, Inc., Redding
East-West Medical Research Institute, Honolulu
Klinikum Wuerzburg Mitte gGmbH, Würzburg
Kaiser Permanente Center For Health Research, Portland
Columbia Research Group, Inc., Portland
VA Portland Healthcare System, Portland
Frandsen Family Medicine DBA Sound Medical Research, Port Orchard
MultiCare Institute for Research & Innovation, Tacoma
Universal Research Group, LLC, Tacoma
Wenatchee Valley Hospital & Clinics, Wenatchee
Centro de Investigaciones - MedPlus Centro de Recuperación Integral S.A.S., Bogotá
Asociación IPS Médicos Internistas de Caldas, Manizales
Fundación Cardiomet CEQUIN, Armenia
Fundacion Cardiovascular de Colombia, Floridablanca
Fundacion Valle del Lili, Santiago de Cali
Centro Medico Imbanaco de Cali S.A., Santiago de Cali
Psicomed Esudios Medicos, Antofagasta
Hospital Dr. Hernan Henriquez Aravena, Temuco
Centro de Investigacion Clínica del Sur, Temuco
Biomedica Research Group, Santiago
Fundacion Arriaran, Santiago
Gastroenterology Center of Connecticut, PC, Hamden
Medical Research Center of Connecticut, LLC, Hamden
Clinical Research Consulting, LLC, Milford
Washington University School of Medicine, St Louis
ID Care, Hillsborough
Amici Clinical Research, Raritan
South Jersey Infectious Disease, Somers Point
Velocity Clinical Research, Providence, East Greenwich
Hospital Aleman, C.a.b.a.
Hospital Italiano de Buenos Aires, C.a.b.a.
Centro Médico Dra. De Salvo, C.a.b.a.
Sanatorio Británico S.A., Rosario
Hospital Nuestra Senora de la Misericordia, Córdoba
Vancouver Coastal Health Research Institution-clinical research unit-Diamond Health Care Centre, Vancouver
The Ottawa Hospital General Campus, Ottawa
The Ottawa Hospital Civic Campus, Ottawa
Manna Research Inc. (Toronto), Toronto
Intermed Groupe Santé, Chicoutimi
Q & T Research Outaouais Inc., Gatineau
Centre Integre de Sante et de Services Sociaux de la Monteregie- Center- Hopital Charles LeMoyne, Greenfield Park
Centre de recherche du CHU de Quebec-Universite Laval, Québec
Centre de recherche Saint-Louis, Québec
ALPHA Recherche Clinique, Québec
CIUSSS de l'Estrie - CHUS, Sherbrooke
Centre Integre Universitaire de Santé et de Services Sociaux de la Mauricie et du Centre du Québec, Trois-Rivières
Hospital Pablo Tobon Uribe, Medellín
Fundacion Centro de Investigacion Clinica - CIC, Medellín
Instituto de Coloproctologia ICO, Medellín
Clinica de la Costa Ltda., Barranquilla
Nemocnice Kyjov, prispevkova organizace, Infekcni oddeleni, Kyjov
Policska nemocnice s.r.o.,, Polička
Interna a kardiologie s.r.o., Rožnov pod Radhoštěm
Nemocnice Slany, p.o., Slaný
Krajska zdravotni, a.s., Masarykova nemocnice Usti nad Labem, Ústí nad Labem
Helsinki University Central Hospital, Helsinki
MECS Cottbus GmbH, Cottbus
Diabetologische Gemeinschaftspraxis Dr. Schaper & Dr. Faulmann, Dresden
EUGASTRO GmbH/ Praxis, Leipzig
SIBAmed Studienzentrum GmbH & Co.KG, Leipzig
Gemeinschaftspraxis Dr. med. Heidrun Taeschner und Dr. med. Susanne Bonigut, Leipzig
Tokai Memorial Hospital, Kasugai
Aichi Medical University Hospital, Nagakute
Daido Clinic, Nagoya
Kamiiida daiichi General Hospital, Nagoya
Iizuka Hospital, Iizuka
Seishinkai Inoue Hospital, Itoshima
Fukuoka Tokushukai Hospital, Kasuga
Kenwakai Otemachi Hospital, Kitakyushu
Fukuyama City Hospital, Fukuyama
Miyanomori Memorial Hospital, Sapporo
Medical Corporation Tokushukai Koga General Hospital, Koga
Mito Kyodo General Hospital, Mito
Yokosuka Kyosai Hospital, Yokosuka
Osaki Citizen Hospital, Ōsaki
Social Medical Care Corporation Hose-kai Marunouchi Hospital, Matsumoto
Nozaki Tokushukai Hospital, Daitō
Omi Medical Center, Kusatsu
Yaizu City Hospital, Yaizu
Juntendo University Hospital, Bunkyo-ku
Fukuwa Clinic, Chuo-ku
Nerima General Hospital, Nerima-ku
Sekino Hospital, Toshima-ku
Fukui-Ken Saiseikai Hospital, Fukui
Japanese Red Cross Kumamoto Hospital, Kumamoto
Saga-Ken Medical Centre Koseikan, Saga
Hospital Nacional Adolfo Guevara Velasco, Cusco
NZOZ Vitamed, Bydgoszcz
Synexus Polska Sp. z o.o Oddzial w Gdansku, Gdansk
Synexus Polska Sp. z o.o. Oddzial w Gdyni, Gdynia
SYNEXUS Polska Sp. z o.o. Oddzial w Katowicach, Katowice
Synexus Polska Sp. z o.o. Oddział w Poznaniu, Poznan
Synexus Polska Sp. z o.o. Oddzial w Warszawie, Warsaw
Synexus Polska Sp. z o.o. Oddzial we Wroclawiu, Wroclaw
Niepubliczny Zaklad Opieki Zdrowotnej Salmed S. C., Łęczna
Hospital Garcia de Orta, Almada
Centro Hospitalar do Baixo Vouga, E.P.E., Aveiro
Hospital de Braga, Braga
Hospital Senhora de Oliveira - Guimaraes, E.P.E., Guimarães
Centro Hospitalar Vila Nova de Gaia/Espinho, E.P.E., Vila Nova de Gaia
PULMO-MEDIK s.r.o., Pneumologicko-ftizeologicka ambulancia, Bojnice
Medak s.r.o., Gastroenterologicka ambulancia, Bratislava
Stalerg, s.r.o., Košice
KM Management spol. s.r.o., Gastroenterologicke a hepatologicke centrum Nitra, Nitra
Dionea, s.r.o., Nové Zámky
MEDIPA, s.r.o., Piešťany
MUDr. Viliam Cibik, PhD, s.r.o., Pruské
Medilex s.r.o., Interna ambulancia, Rimavská Sobota
Plucna ambulancia Hrebenar s.r.o., Spišská Nová Ves
SPAOLO s.r.o., Ambulancia vnutorneho lekarstva, Stará Turá
Privatna urologicka ambulancia, s.r.o., Trenčín
Fakutna nemocnica Trnava, Trnava
Asan Medical Center, Songpa-gu
Korea University Anam Hospital, Seoul
Hallym University Kangdong Sacred Heart Hospital, Seoul
Samsung Medical Center, Seoul
Hallym University Kangnam Sacred Heart Hospital, Seoul
Korea University Guro Hospital, Seoul
EAP Centelles, Centelles
Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat
Parc de Salut Mar- Hospital del Mar, Barcelona
Hospital Clinic de Barcelona, Barcelona
Hospital de la Santa Creu i Sant Pau, Barcelona
Stockport Nhs Foundation Trust, Stockport
Fowey River Practice, Fowey
Oak Tree Surgery, Liskeard
The Alverton Practise, St Clare Medical Centre, Penzance
Rame Group Practice, Rame Medical Ltd., Torpoint
Royal Devon & Exeter Hospital, Exeter
Knowle House Surgery, Plymouth
Layton Medical Centre, Blackpool
University Hospitals of Leicester NHS Trust, Leicester
NHS Lothian, Western General Hospital, Edinburgh
Heart of England NHS Foundation Trust, Birmingham
St James University Hospital, Leeds
Newcastle upon Tyne Hospitals NHS Foundation trust, Newcastle upon Tyne
Lead Sponsor
Pfizer
INDUSTRY