NCT00575653

Brief Summary

We are conducting a large, record-based study to assess the risk of Guillain-Barré Syndrome (GBS), a serious demyelinating disease, following immunization with the tetravalent meningococcal conjugate vaccine (Menactra) that is currently recommended for all adolescents. The study was requested by CDC and FDA because of an unexpected number of case reports to the CDC's Vaccine Adverse Event Reporting System (VAERS). The study protocol was designed by the investigators, with input from FDA, CDC, and the vaccine's manufacturer, Sanofi-Pasteur. An external advisory board that includes CDC representation, provides input regarding important decisions. The manufacturer is not participating in the conduct of the study and has no control over the analysis or dissemination of results. The study is derived from five large US health plans with a total membership of approximately 50 million over the study time period. America's Health Insurance Plans (AHIP) serves as liaison between the health plans and the Coordinating Center at the Department of Ambulatory Care and Prevention of Harvard Medical School and Harvard Pilgrim Health Care, and is the contracting organization with the health plans.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6,000,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2005

Longer than P75 for all trials

Geographic Reach
1 country

6 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2005

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

December 17, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 18, 2007

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2009

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2010

Completed
Last Updated

March 16, 2017

Status Verified

December 1, 2007

Enrollment Period

4.8 years

First QC Date

December 17, 2007

Last Update Submit

March 15, 2017

Conditions

Keywords

Guillain-Barre SyndromeMeningococcal vaccinesTetravalent Meningococcal VaccineVaccinationVaccinesVaccines, Conjugate

Outcome Measures

Primary Outcomes (1)

  • Guillain-Barré syndrome (GBS), verified through neurologist review of medical records

    within 42 days following vaccination

Secondary Outcomes (1)

  • Clinical presentation and severity of GBS

    following vaccination

Study Arms (2)

11-18 (Primary)

Enrolled members of one of the participating health plans who are ages 11-18 at any time during the study period, March 1, 2005 through August 31, 2008.

19-21 (Secondary)

Enrolled members of one of the participating health plans who are ages 19-21 at any time during the study period, March 1, 2005 through August 31, 2008.

Eligibility Criteria

Age11 Years - 21 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

The primary study population will include adolescent health plan members 11-\<19 years of age. A secondary cohort will include members 19-\<22 years of age. Older adolescents are excluded from the primary cohort because an unknown proportion of immunizations to older individuals may be provided by colleges or other out-of-plan providers, and not be identifiable in health plan records.

You may qualify if:

  • Enrolled health plan members for at least 6 months prior to cohort entry
  • Enrolled between March 1, 2005 and August 31, 2008
  • Birth dates between March 2, 1986 and August 30, 1997 for the primary study cohort
  • Birth dates between March 2, 1983 to March 1, 1986 for the secondary cohort

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

HealthCore, Inc.

Wilmington, Delaware, 19801, United States

Location

Kaiser Permanente Center for Health Research Hawaii

Honolulu, Hawaii, 96817, United States

Location

Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care

Boston, Massachusetts, 02215, United States

Location

i3 Drug Safety

Waltham, Massachusetts, 02451, United States

Location

Aetna, Inc.

Blue Bell, Pennsylvania, United States

Location

Highmark Blue Cross Blue Shield

Pittsburgh, Pennsylvania, United States

Location

MeSH Terms

Conditions

Guillain-Barre Syndrome

Condition Hierarchy (Ancestors)

PolyradiculoneuropathyAutoimmune Diseases of the Nervous SystemNervous System DiseasesDemyelinating DiseasesPolyneuropathiesPeripheral Nervous System DiseasesNeuromuscular DiseasesAutoimmune DiseasesImmune System DiseasesPost-Infectious DisordersChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Richard Platt, MD, MS

    Dept. of Ambulatory Care and Prevention, HMS/HPHC

    PRINCIPAL INVESTIGATOR
  • Priscilla Velentgas, PhD

    Dept. of Ambulatory Care and Prevention, HMS/HPHC

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 17, 2007

First Posted

December 18, 2007

Study Start

March 1, 2005

Primary Completion

December 31, 2009

Study Completion

December 31, 2010

Last Updated

March 16, 2017

Record last verified: 2007-12

Locations