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Childhood VaccinationNCT01770496

Age-Specific Strategies for Immunization Reminders and Recalls

A study testing Childhood vaccination reminder / recall notification in people with Childhood Vaccination, run by University of Michigan at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this study was to assess the relative effectiveness of reminder/recall strategies among children who live in an urban area targeting alternative age-specific milestones. Read more about this study

Who is it for?
Ages 7 to 19 months
Conditions the study is for
Childhood Vaccination
What is being tested?
Childhood vaccination reminder / recall notification
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10,175 participants
Where
1 siteUnited States
Study dates
Oct 2007to Sep 2010
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 7 to 19 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • 7 and 19 month recall groups: children not up to date for at least one vaccination at the time of notification
  • 12 month reminder group: 12 months of age at time of notification
  • Hib vaccination series was not assessed due to a vaccine shortage

Who cannot join

  • Children were ineligible for notifications if they were designated in the Michigan Care Improvement Registry (MCIR)as having died, documented previously as having moved out of the jurisdiction ("Moved or Gone Elsewhere" (MOGE)), opted out of MCIR by their parent, or if they had been previously mailed for MCIR reminder/recall activity in the prior 60 days.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Michigan, Child Health Evaluation and Research (CHEAR) Unit

    Ann Arbor, Michigan, 48109-5456

Other trials in United States

About this study

The objective of this study was to assess the relative effectiveness of reminder/recall strategies among children who live in an urban area targeting alternative age-specific milestones.

Being tested
Childhood vaccination reminder / recall notification
Keywords
immunization, vaccination, immunization information system, immunization registry, reminder / recall

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Childhood vaccination reminder / recall notificationBehavioural

    Also called Reminder / recall notifications sent by postal mail

Study groups in NCT01770496
Study groupRoleWhat they receive
No reminder / recall noticeNo interventionNo childhood vaccination reminder / recall notification sent. Stratified by age cohort of subjects: 7 month recall; 12 month reminder; 19 month recall
mailed reminder / recall noticeExperimentalChildhood vaccination reminder / recall notification sent by postal mail. Stratified by age cohort of subjects: 7 month recall; 12 month reminder; 19 month recall
Receives: Behavioral: Childhood vaccination reminder / recall notification

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. new immunization doses

    Receipt of 1 or more childhood vaccinations with administration date following reminder notification date

    Measured: within 60 days of reminder notification

Secondary outcomes (3)
  1. Cost of vaccination reminder

    Estimated personnel costs to generate reminder notifications, print, fold / stuff envelopes and follow up on undeliverable notifications

    Measured: During the time of reminder notification preparation and mailing and approximately 1 month following mailing

  2. historical immunization doses

    One or more vaccination recorded with the date of administration prior to the reminder notification date

    Measured: within 60 days of reminder notification

  3. waived doses

    One or more immunization waiver (non-administration) recorded with the date following the date of reminder notification

    Measured: within 60 days of reminder notification

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2013 (estimated)
  2. Study startOct 2007
  3. Primary completionSep 2009
  4. Study completionSep 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
10,175 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01770496
Sponsor's protocol ID
U01IP000088-01
Status last verified
Jan 2013
First submitted
15 Jan 2013
Last updated
17 Jan 2013
Results posted
No
Data monitoring committee
No

Publications

  • Dombkowski KJ, Costello LE, Harrington LB, Dong S, Kolasa M, Clark SJ. Age-specific strategies for immunization reminders and recalls: a registry-based randomized trial. Am J Prev Med. 2014 Jul;47(1):1-8. doi: 10.1016/j.amepre.2014.02.009. Epub 2014 Apr 18.

    PubMed 24750973

Questions about this trial

What is this clinical trial studying?

A study testing Childhood vaccination reminder / recall notification in people with Childhood Vaccination, run by University of Michigan at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Jan 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

new immunization doses (time frame: within 60 days of reminder notification). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01770496, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jan 2013.

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