Ignite Creation Date:
2025-12-24 @ 11:18 PM
Ignite Modification Date:
2026-03-21 @ 12:11 PM
Study NCT ID:
NCT00153556
Status:
COMPLETED
Last Update Posted:
2005-09-12
First Post:
2005-09-08
Is Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Study to Eliminate Hib Carriage in Rural Alaska Native Villages
Sponsor:
Centers for Disease Control and Prevention
Organization:
Study Overview
Official Title:
A Demonstration Project for the Elimination of Haemophilus Influenzae Type B in Three Rural Alaska Native Villages
Status:
COMPLETED
Status Verified Date:
2005-09
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
No
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Hib disease rates in rural Alaska before introduction of HIb conjugate vaccine were among the highest in the world. Since vaccine introduction, rates have fallen by 90% but the disease has not been eliminated. This study is designed to test one possible means of eliminating Hib carriage and thus to eliminate person to person transmission and invasive disease.
The objective of this study is to evaluate the effectiveness of community-wide use of Hib conjugate vaccine for eliminating oropharyngeal Hib carriage in rural Alaska villages.
Secondary objectives include:
* Determine risk factors for Hib OP carriage including demographic characteristics, and immunologic characteristics (antibody level and function). This will be accomplished through a case-control study described below.
* Measure antibody response to Hib conjugate vaccine among adults who have not previously received Hib vaccine. This will be accomplished through a cohort study of participating adults in the vaccine intervention communities.
The objective of this study is to evaluate the effectiveness of community-wide use of Hib conjugate vaccine for eliminating oropharyngeal Hib carriage in rural Alaska villages.
Secondary objectives include:
* Determine risk factors for Hib OP carriage including demographic characteristics, and immunologic characteristics (antibody level and function). This will be accomplished through a case-control study described below.
* Measure antibody response to Hib conjugate vaccine among adults who have not previously received Hib vaccine. This will be accomplished through a cohort study of participating adults in the vaccine intervention communities.
Detailed Description:
This was a pilot intervention to assess the feasibility of using Hib conjugate vaccine to eliminate Hib carriage in rural Alaska villages, with three villages to serve as a comparison group. WE performed community-wide surveys of Hib carriage by recruiting volunteers for throat cultures to establish a baseline rate of Hib carriage for each community. Then Hib carriers were offered chemoprophylaxis to clear Hib from their throats. In the vaccine intervention communities, a single dose of Hib conjugate vaccine was offered to persons of all ages. This was followed by a second community-wide Hib carriage survey after one year to assess the effectiveness of the intervention.
Study Oversight
Has Oversight DMC:
Is a FDA Regulated Drug?:
Is a FDA Regulated Device?:
Is an Unapproved Device?:
Is a PPSD?:
Is a US Export?:
Is an FDA AA801 Violation?: