Safety Study of GBS Following Menactra Meningococcal Vaccination
Risk of Guillain-Barré Syndrome Following Meningococcal Conjugate (MCV4) Vaccination
1 other identifier
observational
6,000,000
1 country
6
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Mar 2005
Longer than P75 for all trials
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2005
CompletedFirst Submitted
Initial submission to the registry
December 17, 2007
CompletedFirst Posted
Study publicly available on registry
December 18, 2007
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2010
CompletedMarch 16, 2017
December 1, 2007
4.8 years
December 17, 2007
March 15, 2017
Conditions
Keywords
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
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
- Harvard Pilgrim Health Carelead
- Aetna, Inc.collaborator
- HealthCore, Inc.collaborator
- Highmark Blue Cross Blue Shieldcollaborator
- i3 Drug Safetycollaborator
- Kaiser Permanentecollaborator
Study Sites (6)
HealthCore, Inc.
Wilmington, Delaware, 19801, United States
Kaiser Permanente Center for Health Research Hawaii
Honolulu, Hawaii, 96817, United States
Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care
Boston, Massachusetts, 02215, United States
i3 Drug Safety
Waltham, Massachusetts, 02451, United States
Aetna, Inc.
Blue Bell, Pennsylvania, United States
Highmark Blue Cross Blue Shield
Pittsburgh, Pennsylvania, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Richard Platt, MD, MS
Dept. of Ambulatory Care and Prevention, HMS/HPHC
- STUDY DIRECTOR
Priscilla Velentgas, PhD
Dept. of Ambulatory Care and Prevention, HMS/HPHC
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