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METHORIVAC - Vaccinal Pharmacoepidemiologic (METHORIVAC)

This study has been completed.
Information provided by (Responsible Party):
Centre Hospitalier Universitaire Dijon Identifier:
First received: August 27, 2013
Last updated: NA
Last verified: August 2013
History: No changes posted

This project is the pilot step necessary to develop a system of vaccination pharmacoepidemiology that associates a sophisticated analytical approach, appropriate for this challenge and case series analysis, with the use of linked medicoadministrative data for hospitalisations the reimbursement of healthcare costs. This linkage of medicoadministrative data is new in France. The example of the risk of hospitalisation for febrile convulsions in infants less than two years old following vaccination against diphtheria, tetanus and pertussis is given as the reference association. This choice is justified by the numerous publications over many years on the existence of this association (Miller et al BMJ 1981, Farrington et al Lancet 1995). In addition, as case series analyses have been carried out to assess this risk, the results can be compared directly (Lancet 1995). The study to determine whether the analysis tools are suitable for the data will be tackled at the following levels:

  • Validity of the selection of cases from administrative records alone using coding based on the international classification of diseases ICD10
  • Validity of the risk assessment. This methodology feasibility project must make it possible to identify the different potential problems. This is a prerequisite necessary for the systematic implementation.

Infants Likely to Present Febrile Convulsions

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: Pharmacoepidemiological Methodology to Evaluate the Vaccination Risk in Young Infants

Resource links provided by NLM:

Further study details as provided by Centre Hospitalier Universitaire Dijon:

Primary Outcome Measures:
  • DATA EXTRACTION [ Time Frame: At the selection of patients ]
    Dates of delivery (purchase of the vaccine at the pharmacy), prescription, and date of vaccination (consultation) and when necessary, the age, doses, dates of adverse events, identification of the hospital

Enrollment: 500
Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Infants likely to present febrile convulsions


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Children of less than 3 years hospitalized for febrile convulsions

Inclusion Criteria:

- For reimbursement data: All of the data concerning delivery (purchase of the vaccine at a pharmacy, prescription) and vaccination (consultation following the date of purchase) for infants younger than 2 years old, in the years 2007 and 2008.

- For PMSI data: All of the hospitalisations in 2007 and 2008 for febrile convulsions in infants less than 3 years old in hospitals of the following departments: Côte d'Or, Doubs and Bas-Rhin

Exclusion Criteria:

  Contacts and Locations
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Please refer to this study by its identifier: NCT01931813

CHU Dijon
Dijon, France, 21000
Sponsors and Collaborators
Centre Hospitalier Universitaire Dijon
  More Information

Responsible Party: Centre Hospitalier Universitaire Dijon Identifier: NCT01931813     History of Changes
Other Study ID Numbers: Quantin PHRC IR 2009
Study First Received: August 27, 2013
Last Updated: August 27, 2013

Additional relevant MeSH terms:
Seizures, Febrile
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurologic Manifestations
Signs and Symptoms processed this record on September 19, 2017