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NCT ID: NCT04798027 Terminated - COVID-19 Clinical Trials

Study of mRNA Vaccine Formulation Against COVID-19 in Healthy Adults 18 Years of Age and Older

VAW00001
Start date: March 12, 2021
Phase: Phase 1/Phase 2
Study type: Interventional

The primary objectives of the study are: - To describe the safety profile of all participants in each age group and each study intervention group up to 12 months post-last dose. - To describe the neutralizing antibody profile at Day 1, Day 22, and Day 36 of each study intervention group. The secondary objectives of the study are: - To describe binding antibody profile from Day 1 to Day 387 of each study intervention group. - To describe the neutralizing antibody profile from Day 91 to Day 387 of each study intervention group. - To describe the occurrence of virologically-confirmed coronavirus disease-2019 (COVID-19)-like illness and serologically-confirmed SARS-CoV-2 infection. - To evaluate the correlation/association between antibody responses to SARS-CoV-2 messenger RNA (mRNA) vaccine and the risk of virologically-confirmed COVID-19-like illness and/or serologically-confirmed severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection.

NCT ID: NCT04605159 Terminated - Clinical trials for Respiratory Syncytial Virus Infections

A Phase III Double-blind Study to Assess Safety and Efficacy of an RSV Maternal Unadjuvanted Vaccine, in Pregnant Women and Infants Born to Vaccinated Mothers

GRACE
Start date: November 20, 2020
Phase: Phase 3
Study type: Interventional

The purpose of this study is to evaluate the ability of a single dose of the investigational RSV Maternal vaccine, administered intramuscularly (IM) to pregnant women aged 18-49 years, in good general maternal health, in preventing medically assessed RSV associated Lower Respiratory Tract Illnesses (LRTIs) in infants born to vaccinated mothers. The study will also evaluate the safety of the investigational RSV Maternal vaccine both in vaccinated mothers and in their corresponding infant. Following a recommendation from the Independent Data Monitoring Committee of NCT04605159 (RSV MAT 009), GSK made the decision to stop enrolment and vaccination in the study. Ongoing study participants will continue to be monitored as part of the study.

NCT ID: NCT02788214 Terminated - Gastric Cancer Clinical Trials

Helicobacter Pylori Genome Project (HpGP)

Start date: July 27, 2016
Phase:
Study type: Observational

Helicobacter pylori is a common bacterial infection. It can lead to severe stomach problems, including stomach cancer. Researchers want to look at samples of the bacteria. These H. pylori strains will be taken from chronically infected people. They want to identify the genetic and epigenetic differences in H. pylori strains. This could help predict which people who get infected with the bacteria will get stomach cancer. This could lead to the cancer being detected earlier. It could also mean less people get stomach cancer. Objectives: To study genetic variations of H. pylori strains based on samples from chronically infected people. To identify the features of strains that might lead to severe stomach problems or stomach cancer. Eligibility: People ages 30-70 years who need an upper endoscopy or who were recently diagnosed with stomach cancer Design: Participants will be screened by the doctor who does their procedure and a study nurse. Participants who have endoscopy will have ~6 biopsies removed. These are tissue samples. They are about the size of a grain of rice. Participants will allow the study team to access reports from their stomach exam. Participants with stomach cancer will donate some of the tissue that will be removed during their clinical care. They will allow the study team to access reports of their surgery. They will also allow them to access the microscope slides of their stomach.

NCT ID: NCT01618591 Terminated - Clinical trials for Acute Watery Diarrhea

Trial Evaluating Ambulatory Treatment of Travelers' Diarrhea

TrEAT TD
Start date: September 2012
Phase: N/A
Study type: Interventional

The purpose of the trial is to develop the evidence on relative efficacy of 3 available single-dose loperamide adjuncted regimens for watery diarrhea and a single-dose regimen, with and without loperamide, for dysentery/febrile diarrhea required for informing decisions among these regimens. Information from this study will be used to develop management guidelines for the diagnosis and management of travelers' diarrhea (TD) among deployed United States and United Kingdom military personnel.