NCT02391909

Brief Summary

This is a multicenter (at travel clinics), phase 4 observational prospective cohort study in healthy adult male and female travelers for whom typhoid vaccination with Vivotif is recommended, as per standard practice.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
855

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2015

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 12, 2015

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 18, 2015

Completed
5 months until next milestone

Study Start

First participant enrolled

August 26, 2015

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 6, 2016

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 21, 2017

Completed
Last Updated

July 7, 2023

Status Verified

July 1, 2023

Enrollment Period

1.1 years

First QC Date

March 12, 2015

Last Update Submit

July 6, 2023

Conditions

Keywords

Vaccine

Outcome Measures

Primary Outcomes (1)

  • The occurrence of any AE up to two weeks after the scheduled final vaccine dose

    Day 21

Secondary Outcomes (4)

  • The distribution of the solicited Adverse Reactions

    Day 21

  • The distribution of unsolicited Adverse Reactions

    Day 21

  • The occurrence of any unsolicited adverse event up to two weeks after the scheduled final vaccine dose

    Day 21

  • The occurrence of any SAE up to two weeks after the scheduled final vaccine dose

    Day 21

Study Arms (2)

Group A

Vivotif 6.9-10.0 x109 CFU/capsule

Biological: Vivotif

Group B

Vivotif 4.0-6.8 x109 CFU/capsule

Biological: Vivotif

Interventions

VivotifBIOLOGICAL
Group AGroup B

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Travelers attending travelers' vaccination clinics, and for whom typhoid vaccination with Vivotif is recommended, according to standard practice

You may qualify if:

  • Subjects are male or female aged ≥ 18 years at time of dosing
  • Subjects are travelers attending travelers' vaccination clinics
  • Subjects are eligible for typhoid vaccination, according to standard practice
  • Subjects are expected to be able to provide follow-up information
  • Subjects have an expected travel departure date more than 21 days after enrollment (to enhance follow-up by ensuring subjects remain in the US during the AE collection period)
  • Subjects must sign a written informed consent

You may not qualify if:

  • Subjects with a known hypersensitivity to any component of the vaccine or the enteric coated capsule
  • Subjects deficient in their ability to mount a humoral or cell-mediated immune response due to either a congenital or acquired immunodeficient state including treatment with immune-suppressive or antimitotic drugs
  • Subjects with an acute febrile illness
  • Subjects with acute gastrointestinal (GI) illness
  • Subjects who are receiving medications with antibacterial activity (including proguanil) at the time of enrollment
  • Subjects with other contraindications as determined by the site investigator

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Passport Health

Baltimore, Maryland, 21230, United States

Location

MeSH Terms

Conditions

Typhoid Fever

Interventions

Ty21a typhoid vaccine

Condition Hierarchy (Ancestors)

Salmonella InfectionsEnterobacteriaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 12, 2015

First Posted

March 18, 2015

Study Start

August 26, 2015

Primary Completion

October 6, 2016

Study Completion

February 21, 2017

Last Updated

July 7, 2023

Record last verified: 2023-07

Locations