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Phase 1 Study of dmLT ID Vaccination in Healthy Adults

NCT02531685 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2020-10-26

No results posted yet for this study

Summary

This study is to determine the safety and immunogenicity of an Enterotoxigenic Escherichia coli (ETEC) candidate vaccine, attenuated recombinant Double Mutant Heat-Labile Toxin (dmLT) from ETEC, administered by the Intradermal (ID) route. The sample size has been determined based on the historic sample, not on power calculations.The study will involve 99 subjects (83 vaccinees and 16 placebo controls) in 4 consecutive cohorts of 16 individuals each (13 vaccinees and 3 placebo controls) and the final cohort of 35 (31 vaccinees and 4 placebos) subjects. The primary objective is to assess the safety and tolerability of dmLT vaccine when administered in three doses intradermally over a range of dosages in healthy adult subjects.

Conditions

  • Gastroenteritis Escherichia Coli

Interventions

OTHER

Placebo

Placebo: 0.9% Sodium Chloride injection.

BIOLOGICAL

Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine

LT(R192G/L211A), or dmLT is formulated as a freeze-dried (lyophilized), white to off-white cake, containing 700mcg of vaccine protein in a 3 ml, multi-dose.

Sponsors & Collaborators

  • National Institute of Allergy and Infectious Diseases (NIAID)

    lead NIH

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-06-02
Primary Completion
2020-05-04
Completion
2020-05-04
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02531685 on ClinicalTrials.gov