Actively Recruiting

Phase Not Applicable
All Genders
Healthy Volunteers
NCT03357536

Genetic Susceptibility to Listeriosis

Led by Institut Pasteur · Updated on 2025-09-19

100

Participants Needed

1

Research Sites

522 weeks

Total Duration

On this page

Sponsors

I

Institut Pasteur

Lead Sponsor

I

Icahn School of Medicine at Mount Sinai

Collaborating Sponsor

AI-Summary

What this Trial Is About

Listeriosis is a rare, severe foodborne infection, responsible for severe invasive infections. It occurs in the great majority of cases in elderly patients and / or patients with comorbidities, with a deficit of innate or cellular immunity. Pregnancy is also a risk factor. The Multicentric Observational NAtional Analysis of Listeriosis and Listeria (MONALISA) is an ongoing national case-control prospective study on listeriosis implemented since 2009 to study risk and prognosis factors for listeriosis. In this cohort, which enrolled 902 patients on 1 August 2014, 7% of patients with neurolisteriosis are under 40 years of age and have no identified risk factor. Genetic susceptibility is suspected in these patients. Genetic susceptibility could also explain the inconstant development of a neurolisteriosis or fetal infection, as well as the particular severity of some infections (death, foetal loss, neurological sequelae). The aim of the study is to identify genetic susceptibility to Listeriosis.

CONDITIONS

Official Title

Genetic Susceptibility to Listeriosis

Who Can Participate

All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Microbiologically confirmed listeriosis (severe form, atypical form, or patient under 40 years old without identified co-morbidity)
  • Affiliated or beneficiary of a social security system
  • Provided informed and written consent
  • For volunteers related to patients: defined as father, mother, siblings, children, grandparents, uncles, aunts, cousins, nephews, or nieces
  • Affiliated or beneficiary of a social security system
  • Provided informed and written consent
Not Eligible

You will not qualify if you...

  • Inability to provide consent

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

Centre Médical de l'Institut Pasteur

Paris, France, 75015

Actively Recruiting

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Research Team

M

Marc Lecuit

CONTACT

C

Caroline Charlier-Woerther

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NON_RANDOMIZED

Model

SINGLE_GROUP

Primary Purpose

BASIC_SCIENCE

Number of Arms

2

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