Scandinavian Biopharma Holding AB

This is an open label study with the aim to estimate the incidence of moderate and severe diarrhea among participants challenged with an enterotoxigenic E. coli (ETEC) strain. This strain is planned to be used in a subsequent challenge study on the efficacy of an oral inactivated ETEC vaccine.
The study will be conducted at one site; the Center for Immunization Research, Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland, United States.

This is a phase 2,prospective double-blind, randomized, parallel-group study with the aim to demonstrate non-inferiority, in terms of immunogenicity, between the wet formulation and a newly developed partially dried formulation of selected components of ETVAX.