Clinical trials: Shigella
Shigellosis
Safety Study of Inactivated Shigella Whole Cell Vaccine in Adults
This is a research study about an experimental (investigational) oral inactivated whole cell Shigella flexneri 2a killed vaccine (Sf2aWC).
- Trial name
- NCT01509846
- Testing
- Vaccine: 2.6±0.8 x 10^8 vp/mL, 1 dose, Vaccine: 2.6±0.8 x 10^9 vp/mL, 3 doses, Vaccine: 2.6±0.8 x 10^10 vp/mL, 3 doses
- Where
- 2 sites in United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- PATH
Diarrhea
Shigella WRSS1 Vaccine Trial in Bangladesh
This is a research study of an experimental (investigational) live attenuated Shigella sonnei vaccine (WRSS1) to find a dose of the vaccine that is safe, tolerable, and develops an immune response.
- Trial name
- NCT02934178
- Testing
- Shigella sonnei Strain WRSS1 Vaccine
- Where
- Bangladesh
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- PATH
Diarrhea
Rifaximin for Prevention of Travellers' Diarrhea
The purpose of this study is to determine if 600 mg of rifaximin, taken once a day for 14 days by healthy subjects, is safe and effective for the prevention of travellers' diarrhea compared to placebo.
- Trial name
- NCT00742469
- Testing
- Rifaximin
- Where
- Mexico
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Bausch Health Americas, Inc.
Shigella
Shigella CVD 30000: Study of Responses to Vaccination With Shigella Vaccine
The purpose of this study is to determine whether SF2a-TT15 (a monovalent synthetic carbohydrate-based conjugate Shigella vaccine) is safe and effective in the prevention of Shigella infection.
- Trial name
- NCT04078022
- Testing
- SF2a-TT15 Shigella Vaccine, S. flexneri 2a strain 2457T Challenge Agent
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Healthy
Dose-Finding Study of Lyophilized Shigella Sonnei 53G Challenge Strain
Development of an S. sonnei human challenge model using a newly manufactured lyophilized lot of S. sonnei strain 53G (Lot 1794) that can be used in the future as a challenge strain for all S. sonnei vaccine candidates.
- Trial name
- NCT02816346
- Testing
- Shigella sonnei 53G
- Where
- United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- PATH
Diarrhoea
A Study on the Immune Response and Safety of a Multicomponent Shigella Vaccine in Preventing Shigellosis in Infants
This study evaluates the immune response and safety of a multicomponent, 2-dose Shigella vaccine in preventing shigellosis in African infants.
- Trial name
- NCT06663436
- Testing
- altSonflex1-2-3 Dose A, altSonflex1-2-3 Dose B, altSonflex1-2-3 Dose C
- Where
- Kenya
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Shigellosis, Bacillary Dysentery
Safety and Immunogenicity of Artificial Invaplex (Shigella Flexneri 2a InvaplexAR)
This study is an open-label, dose-escalating Phase 1 investigation of S. flexneri 2a InvaplexAR vaccine. A total of up to 40 subjects will receive one of four S. flexneri 2a InvaplexAR vaccine doses.
- Trial name
- NCT02445963
- Testing
- Shigella flexneri 2a InvaplexAR
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- U.S. Army Medical Research and Development Command
Dysentery, Bacillary
A Study to Evaluate the Efficacy, Safety and Immunogenicity of a Vaccine Designed to Protect Against Infection With Shigella Sonnei in Healthy Adults
The purpose of this study is to evaluate the efficacy, safety and immunogenicity of the GSK3536852A vaccine, which was designed to protect against shigellosis caused by Shigella sonnei (S.
- Trial name
- NCT03527173
- Testing
- S.sonnei vaccine, S. sonnei 53G challenge strain
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Shigellosis
A Phase 1, Dose Escalation Study, to Evaluate a New Shigella Sonnei Vaccine in Healthy Adults.
This Phase 1 clinical trial is aimed to evaluate the safety and immunogenicity of 3 doses of 5 sequentially escalating dosages of a candidate vaccine against Shigella sonnei (1790GAHB vaccine) administered by intramuscular route…
- Trial name
- NCT02017899
- Testing
- S. sonnei 1790GAHB
- Where
- France
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- GSK Vaccines Institute For Global Health S.r.l.
Shigellosis
Safety, Immunogenicity and Efficacy of Shigella Conjugate Vaccines in 1-4 Year Olds in Israel
Shigellosis remains a serious and frequent disease throughout the world. Development of vaccines has been difficult because shigellae are habitants of and pathogens for humans only and there is no consensus about the mechanism(s)…
- Trial name
- NCT00368316
- Testing
- Shigella conjugate vaccines
- Where
- 2 sites in Israel
- Volunteers
- 2,799 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Dysentery, Bacillary
A Study to Evaluate Safety and Immunogenicity of 1 Booster Dose of 1790GAHB Vaccine in Healthy Adults Primed With 3 Doses of 1790GAHB Vaccine in Study H03_01TP Compared to 1 Vaccination of 1790GAHB in Either Subjects Who Received Placebo in the Same Study or naïve Subjects Not Part of H03_01TP Study
GVGH Shigella Sonnei 1970GAHB is a vaccine aimed at preventing the disease caused by Shigella sonnei. A post-hoc analysis of subjects who participated in the parent study showed significantly different responses in subjects with…
- Trial name
- NCT03089879
- Testing
- GVGH Shigella sonnei 1790GAHB vaccine
- Where
- France
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Shigellosis
Controlled Human Infection Model Challenge/Rechallenge
The goal of this study is to better understand Shigella immunity. The study will compare the shigellosis rate in participants previously challenged with a different Shigella serotype to the attack rate in participants not…
- Trial name
- NCT04992520
- Testing
- Shigella sonnei 53G, Shigella flexneri 2a 2457T
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- PATH
Diarrhea
Safety Study of Live Attenuated Oral Shigella (WRSS1) Vaccine in Bangladeshi Adults and Children
This is a research study about an experimental (investigational) oral Shigella sonnei - Walter Reed S. sonnei (WRSS1). WRSS1 is a live vaccine that is being made to prevent disease from Shigella, which causes bloody, watery…
- Trial name
- NCT01813071
- Testing
- WRSS1
- Where
- Bangladesh
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- PATH
Dysentery, Shigella
Safety and Efficacy Study of WRSS1, a Shigella Sonnei Vaccine Candidate
This study is an inpatient trial to determine the safety, immunogenicity and efficacy of the WRSS1 candidate vaccine in healthy Thai adult volunteers.
- Conditions
- Dysentery, Shigella, Diarrhea
- Trial name
- NCT01080716
- Testing
- Part 1/Arm 1 of Study: WRSS1 vaccine, Part 2/Arm 1 of Study: S. sonnei 53G, Part 2/Arm 2 of Study: S. sonnei 53G
- Where
- Thailand
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- U.S. Army Medical Research and Development Command
Shigella Sonnei Infection
A Study of the Safety and Immune Response of 2 Doses of a New Shigella Vaccine in Kenyan Adults
The purpose of this study is to evaluate the safety and the immunogenicity of two different doses of the GVGH S. sonnei vaccine in healthy adults and represents the first step towards testing of the GMMA vaccine in the vaccine…
- Trial name
- NCT02676895
- Testing
- GVGH S. sonnei (1790GAHB) vaccine 25 μg, GVGH S. sonnei (1790GAHB) vaccine 100 μg, Menveo
- Where
- Kenya
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Shigellosis
Shigella Flexneri 2a Invaplex 50 Vaccine Dose Finding and Assessment of Protection
The purpose of this study is to select a safe and immunogenic dose of Invaplex 50 intranasal vaccine, and to assess protection of Invaplex 50 intranasal vaccine against diarrhea, dysentery, and fever following challenge with the…
- Trial name
- NCT00485134
- Testing
- 240 µg Shigella flexneri 2a Invaplex 50 vaccine, 480 µg Shigella flexneri 2a Invaplex 50 vaccine, 690 Shigella flexneri 2a Invaplex 50 vaccine
- Where
- 2 sites in United States
- Volunteers
- 113 people, healthy volunteers welcome
- Sponsor
- U.S. Army Medical Research and Development Command
Immunisation, Shigella Infection
Phase 2 Shigella Vaccine and Challenge
This is a trial to evaluate the safety, reactogenicity, immunogenicity and efficacy of a 10^6 cfu dose of an oral live-attenuated S.
- Trial name
- NCT04242264
- Testing
- Shigella sonnei strain 53G, WRSs2
- Where
- 2 sites in United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Diarrhoea
A Study on the Safety and Immune Responses to the GVGH altSonflex1-2-3 Vaccine Against Shigellosis in Adults, Children, and Infants
The aim of the current clinical study was to evaluate, for the first time in humans (FTIH), the safety and immunogenicity of the altSonflex1-2-3 candidate vaccine against S. sonnei and S. flexneri serotypes 1b, 2a, and 3a.
- Trial name
- NCT05073003
- Testing
- AltSonflex1-2-3 High Dose, AltSonflex1-2-3 Medium Dose, AltSonflex1-2-3 Low Dose
- Where
- 2 sites in Belgium, Kenya
- Volunteers
- 551 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Shigella Infection, Enterotoxigenic Escherichia Coli Infection
Shigella CVD 31000: Study of Responses With Shigella-ETEC Vaccine Strain CVD 1208S-122
The purpose of this study is to determine whether a live, oral, combined Shigella-ETEC vaccine candidate, known as strain CVD 1208S-122, is safe and immunogenic.
- Trial name
- NCT04634513
- Testing
- strain CVD 1208S-122
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Diarrhea
Dose Escalating Study of Intramuscular Invaplex[AR-DETOX]
The main purpose of this study is to evaluate the safety of a Shigella flexneri 2a detoxified artificial invasin complex (Invaplex[AR-Detox]) vaccine candidate administered by intramuscular immunization.
- Trial name
- NCT03869333
- Testing
- Invaplex[AR-DETOX]
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- PATH