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Health Services ResearchNCT01296906

Population Versus Practice-based Interventions to Increase Immunizations

A study testing Recall conducted by private practices and Recall conducted centrally by local health department in people with Health Services Research and Comparative Effectiveness, run by University of Colorado, Denver 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

One of the nation's major health priorities, as outlined in Healthy People 2010, is to increase the proportion of children aged 19 to 35 months who have received all universally recommended vaccines. Read more about this study

Who is it for?
Ages 19 months and older
What is being tested?
Recall conducted by private practices and Recall conducted centrally by local health department
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31,567 participants
Where
1 siteUnited States
Study dates
May 2010to Sep 2012
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 19 months and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • child between the age of 19-35 months
  • has an address in a specified study county in the state immunization registry
  • child is in need of at least one recommended immunization

Who cannot join

  • child has opted out of the state immunization registry
  • child is up-to-date on all recommended immunizations

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Study site

    Denver, Colorado

Other trials in United States

About this study

One of the nation's major health priorities, as outlined in Healthy People 2010, is to increase the proportion of children aged 19 to 35 months who have received all universally recommended vaccines. This study will compare two interventions for increasing immunization rates in this age group, one using well-studied primary care practice-based methods and the other using innovative technologies to increase immunization rates at the population-level. Results of this study will provide data that will be relevant nationally in guiding future investment of resources to increase up-to-date rates in young children prior to school entry.

Hypothesis: Population-based approaches will be more effective than practice-based interventions at increasing immunizations among 19-35 month olds.

Being tested
Recall conducted by private practices, Recall conducted centrally by local health department
Keywords
Reminder/recall messages, reminders, recall, immunizations, immunization information systems, effectiveness of reminder/recall, population-based reminder/recall

What participants receive

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

  • Recall conducted by private practicesBehavioural

    All practices in these counties will receive training on practice-based R/R using the Colorado Immunization Information System (CIIS or immunization registry). Practices will receive a recommended schedule for conducting recall in 19-35 month children and educational materials to use within their practices to promote compliance with the infant vaccination schedule. Individual practices will make their own decisions about the extent to which they follow the recommendations and implement recall within their practice. Although the study team will not provide them with any additional interventions, we will track any other interventions they independently do (websites, newsletters, telephone informational systems) in order to assess the effect of these additional interventions.

  • Recall conducted centrally by local health departmentBehavioural

    A centralized recall of children 19-35 months will be conducted through local health departments. CIIS will identify a cohort of 19-35 month olds with an who are in need of an immunization and will coordinate up to 3 mailers to children who are not current for recommended immunizations.

Study groups in NCT01296906
Study groupRoleWhat they receive
Population-based Reminder/RecallExperimentalRecall is performed centrally by public health departments for all children in need of immunizations in a geographic area.
Receives: Behavioral: Recall conducted centrally by local health department
Practice-based Reminder/RecallExperimentalReminder/Recall is performed by individual private practices for their patients who appear in need of immunizations.
Receives: Behavioral: Recall conducted by private practices

What is being measured

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

  1. Evaluate effectiveness of population-based reminder/recall methods versus practice-based reminder/recall methods in 14 Colorado counties (rural and urban)

    The primary outcome measures will be: 1) change in up-to-date rates from baseline levels 6 months after the intervention (T-1) for 19-35 month olds in population-based compared to practice-based intervention counties and 2) percent of children who were not up-to-date prior to recall (T-0) who received any additional new vaccine in each type of intervention county.

    Measured: 6 months post-intervention (December 2010)

Timeline

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

  1. First posted16 Feb 2011 (estimated)
  2. Study startMay 2010
  3. Primary completionDec 2010
  4. Study completionSep 2012

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
31,567 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01296906
Sponsor's protocol ID
10-0823
Other IDs
1RC1LM010513-01
Status last verified
Jun 2013
First submitted
14 Feb 2011
Last updated
21 Jun 2013
Results posted
No
Data monitoring committee
No

Publications

  • Briss PA, Rodewald LE, Hinman AR, Shefer AM, Strikas RA, Bernier RR, Carande-Kulis VG, Yusuf HR, Ndiaye SM, Williams SM. Reviews of evidence regarding interventions to improve vaccination coverage in children, adolescents, and adults. The Task Force on Community Preventive Services. Am J Prev Med. 2000 Jan;18(1 Suppl):97-140. doi: 10.1016/s0749-3797(99)00118-x.

    PubMed 10806982
  • Recommendations regarding interventions to improve vaccination coverage in children, adolescents, and adults. Task Force on Community Preventive Services. Am J Prev Med. 2000 Jan;18(1 Suppl):92-6. No abstract available.

    PubMed 10806981
  • Tierney CD, Yusuf H, McMahon SR, Rusinak D, O' Brien MA, Massoudi MS, Lieu TA. Adoption of reminder and recall messages for immunizations by pediatricians and public health clinics. Pediatrics. 2003 Nov;112(5):1076-82. doi: 10.1542/peds.112.5.1076.

    PubMed 14595049
  • Murray DM, Varnell SP, Blitstein JL. Design and analysis of group-randomized trials: a review of recent methodological developments. Am J Public Health. 2004 Mar;94(3):423-32. doi: 10.2105/ajph.94.3.423.

    PubMed 14998806
  • Kempe A, Saville A, Dickinson LM, Eisert S, Reynolds J, Herrero D, Beaty B, Albright K, Dibert E, Koehler V, Lockhart S, Calonge N. Population-based versus practice-based recall for childhood immunizations: a randomized controlled comparative effectiveness trial. Am J Public Health. 2013 Jun;103(6):1116-23. doi: 10.2105/AJPH.2012.301035. Epub 2012 Dec 13.

    PubMed 23237154

Questions about this trial

What is this clinical trial studying?

A study testing Recall conducted by private practices and Recall conducted centrally by local health department in people with Health Services Research and Comparative Effectiveness, run by University of Colorado, Denver 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 2 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 21 Jun 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?

Evaluate effectiveness of population-based reminder/recall methods versus practice-based reminder/recall methods in 14 Colorado counties (rural and urban) (time frame: 6 months post-intervention (December 2010)). 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 NCT01296906, which also lists 5 linked publications.

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 21 Jun 2013.

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