NCT02807831

Brief Summary

Background: environmental influences in the first years of life have a great impact on adulthood. Adequate environmental stimulation in the first years of life positively influence cognitive, emotional and neurological development. Studies show that high quality education for 3 to 6 years old children are cost-effective for diverse outcomes, such as socioemotional and cognitive development, as well as school performance. However, it is not clear why specific types of interventions are most effective on school readiness, an important precursor of literacy status and later life outcomes. Objectives: adapt to the Brazilian context two well-known intervention programs: (1) executive functions training developed by Diamond, and (2) oral language skills based on the Nuffield Programme developed by Snowling and colleagues. Methods: a randomized controlled trial involving 720 children (4 to 5 years old) allocated to three groups: (1) adapted school curriculum focusing on executive functions training, (2) adapted school curriculum focusing on oral language skills training, and (3) regular school curriculum.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
582

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2014

Shorter than P25 for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2014

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2014

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

June 10, 2016

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 21, 2016

Completed
Last Updated

June 21, 2016

Status Verified

June 1, 2016

Enrollment Period

10 months

First QC Date

June 10, 2016

Last Update Submit

June 16, 2016

Conditions

Keywords

Executive FunctionLanguagePreschool childDevelopment

Outcome Measures

Primary Outcomes (1)

  • Change in school readiness

    Assessed with a 43 items questionnaire developed by the research staff.

    Beginning of the school year (baseline) and at the end of the school year (post intervention, 7 to 8 months later)

Secondary Outcomes (3)

  • Change in inhibitory control

    Beginning of the school year (baseline) and at the end of the school year (post intervention, 7 to 8 months later)

  • Change in working memory

    Beginning of the school year (baseline) and at the end of the school year (post intervention, 7 to 8 months later)

  • Change in oral language skills

    Beginning of the school year (baseline) and at the end of the school year (post intervention, 7 to 8 months later)

Study Arms (3)

Executive functions training

EXPERIMENTAL
Behavioral: Executive functions training

Language skills training

EXPERIMENTAL
Behavioral: Language skills training

Regular school curriculum

ACTIVE COMPARATOR
Other: Regular school curriculum

Interventions

Daily training of executive functions via activities to develop auto-regulation, attention and memory.

Executive functions training

Daily training of language skills via activities to develop phonological awareness and vocabulary.

Language skills training

Ministry of Education national school curriculum.

Regular school curriculum

Eligibility Criteria

Age3 Years - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Schools interested in the intervention program
  • Preschool children (4 to 6 years old)

You may not qualify if:

  • Presence of any sensory impairment
  • Intellectual disability

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Language

Condition Hierarchy (Ancestors)

CommunicationBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 10, 2016

First Posted

June 21, 2016

Study Start

February 1, 2014

Primary Completion

December 1, 2014

Study Completion

December 1, 2014

Last Updated

June 21, 2016

Record last verified: 2016-06