NCT05749419

Brief Summary

The goal of this observational study is to learn about vaccinations hesitancy, delay or avoidance in children with chronic diseases, congenital anomalies or disabilities. The main questions it aims to answer are: • Attitudes of caregivers towards vaccinating their children, obstacles that postpone vaccinations, and the status of vaccinations of these children. Participants will fill out questionnaires and some will be included in focused groups for the qualitative part of the study. Researchers will compare the vaccinations status of the research group to their siblings' status as well as the published national records of vaccination compliance.

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

First Submitted

Initial submission to the registry

February 8, 2023

Completed
21 days until next milestone

First Posted

Study publicly available on registry

March 1, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

July 1, 2023

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2026

Completed
Last Updated

April 3, 2025

Status Verified

September 1, 2024

Enrollment Period

2.5 years

First QC Date

February 8, 2023

Last Update Submit

April 1, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Percentages of children in the study group who are not vaccinated, partially vaccinated, or vaccinated late, in comparison with the percentages in the control group.

    Percecntages as described above as well as description of reasons for vaccination avoidance, delay and hesitancy, obstacles in the way to vaccinate, approach to vaccines as detaled in the questionnaires.

    2 years

Study Arms (1)

study group and control group

Study group - children with chronic diseases, disabilities, or congenital anomalies. Control group - their siblings.

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Children with disabilities, chronic conditions and congenital anomalies. The parents will fiil out the questionnaires and participate in focus groups.

You may qualify if:

  • Diagnosed children with disabilities, chronic diseases or congenital anomalies

You may not qualify if:

  • Undiagnosed children
  • Inadequate filled out questionnaires

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hadassah medical center

Jerusalem, 92140, Israel

RECRUITING

MeSH Terms

Conditions

Vaccination RefusalPatient ComplianceIntellectual DisabilityCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Condition Hierarchy (Ancestors)

Treatment RefusalTreatment Adherence and ComplianceHealth BehaviorBehaviorPatient Acceptance of Health CareNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsNeurodevelopmental DisordersMental Disorders

Study Officials

  • Ariel Tenenbaum, MD

    Hadassah Medical Organization

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Ariel Tenenbaum, MD

CONTACT

Study Design

Study Type
observational
Observational Model
FAMILY BASED
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator, MD, Clinical Professor, Director of the center for children with chronic diseases

Study Record Dates

First Submitted

February 8, 2023

First Posted

March 1, 2023

Study Start

July 1, 2023

Primary Completion

January 1, 2026

Study Completion

January 1, 2026

Last Updated

April 3, 2025

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Locations