CompletedPhase 2

LT Vaccine Patch Self-Administration Study

United States160 participantsStarted 2007-11

Plain-language summary

To evaluate the immune responses achieved following self-administered heat-labile enterotoxin of E. coli (LT) vaccination by transcutaneous immunization compared to the immune responses achieved by clinician-administered vaccination.

Who can participate

Age range

18 Years – 64 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: Subjects must meet all of the following inclusion criteria to be eligible to participate in the study: * Healthy adult males or females 18-64 years of age with signed Informed Consent. * Women who are not post-menopausal or surgically sterile must have a negative serum or urine pregnancy test at screening and within 24 hours of each vaccination with understanding (through Informed Consent process) to not become pregnant over the duration of the study, and must agree to employ an effective form of birth control for the duration of the study. Acceptable forms of birth control are: abstinence, hormonal contraceptives (oral, injectable, implant, patch, ring), double-barrier contraceptives (condom or diaphragm, with spermicide), and IUD. Exclusion Criteria: Subjects meeting any of the following criteria are not eligible for participation in the study: * Laboratory abnormalities \[as determined by the Toxicity Grading Scale (grade 1-4)\] at laboratory screening * Abnormalities at physical examination \[as determined by the Toxicity Grading Scale (grade 1-4)\] * Known allergies to any component of the vaccine * Known allergies to adhesives * Participated in research involving investigational product within 30 days before planned date of first vaccination * Donated blood or blood products such as plasma within the past 30 days * Ever received investigational enterotoxigenic E. coli, LT, or LT (R192G) or NasalFlu, Berna Biotech, Ltd * Ever received cholera tox…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

GMTs After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 0, Day 14, Day 21, Day 28, Day 35, Day 194

GMFR After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 14, Day 21, Day 28, Day 35, Day 194

Seroconversion After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 14, Day 21, Day 28, Day 35, Day 194

Trial details

NCT IDNCT00565461

SponsorIntercell USA, Inc.

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2008-07

Results submitted2014-01-30

View on ClinicalTrials.gov More Prevention of Travelers' Diarrhea trials

Who can participate

Age range

18 Years – 64 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

GMTs After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 0, Day 14, Day 21, Day 28, Day 35, Day 194

GMFR After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 14, Day 21, Day 28, Day 35, Day 194

Seroconversion After a Self-administered LT Vaccine Patch (In-clinic or Away From Clinic) Compared to a Clinician-administered LT Vaccine Patch.

Timeframe: Day 14, Day 21, Day 28, Day 35, Day 194