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Executive Function Play Opportunities for Children With Down Syndrome (EXPO)

25. srpna 2026 aktualizováno: Colorado State University

Executive Function Intervention for Young Children With Down Syndrome

The Executive Function Play Opportunities (EXPO) study is a sequential, multiple assignment, randomized trial (SMART) evaluating adaptive caregiver-mediated intervention pathways for improving executive function (EF) in children with Down syndrome (DS). At baseline, participants will be randomized in a 1:4 ratio to receive either a delayed-treatment control condition or the EXPO intervention. After 4 weeks of standard EXPO intervention in stage 1, participants in the EXPO condition will be assessed for response to the intervention based on prespecified criteria for improvement in laboratory-based EF performance. Early responders will continue with the standard EXPO intervention in stage 2. Slower responders will be randomized to either the EXPO Extended or EXPO Foundations pathway. All participants will complete laboratory and parent-report measures of EF immediately post-intervention and 3 months later. Participants in the delayed-treatment control condition will complete the same assessments as the EXPO groups and will be offered the EXPO intervention after completion of the 3-month follow-up.

Přehled studie

Postavení

Zatím nenabíráme

Podmínky

Intervence / Léčba

Detailní popis

The Executive Function Play Opportunities (EXPO) study is a sequential, multiple assignment, randomized trial (SMART) evaluating adaptive caregiver-mediated intervention pathways for improving executive function (EF) in children with Down syndrome (DS). At baseline, all participants will complete an assessment including laboratory-based measures of EF, parent-report measures of EF, and intensive ecological measurement of EF using the iBehavior app. Participants will then be randomized in a 1:4 ratio to receive either a delayed-treatment control condition or the EXPO intervention, with a target total sample size of 150.

During stage 1, participants in the EXPO condition will complete 4 weeks of standard EXPO intervention. The initial weeks of EXPO consist of 2 weeks of EXPO Ready activities followed by 2 weeks of Working Memory activities, and all participants in the EXPO intervention receive ongoing support from an EXPO coach.

At the stage 1 evaluation, conducted 4 weeks after starting EXPO, all participants will complete the laboratory-based EF assessment battery. EXPO participants will be assessed for response to the intervention and classified as early or slower responders based on prespecified criteria for improvement in laboratory-based EF performance.

Early responders will be assigned to the standard EXPO intervention in stage 2 and continue with activities targeting inhibition, cognitive flexibility, planning, and consolidation of skills for a total of 12 weeks. Slower responders will be randomly assigned in a 1:1 ratio to either the EXPO Extended or EXPO Foundations pathway. The EXPO Extended pathway will include the same core activities as the EXPO standard pathway but will provide additional intervention time, for a total of 18 weeks. The EXPO Foundations pathway will begin with a block of activities targeting early social communication and regulation to provide a foundation for activity engagement, followed by more foundational versions of activities targeting inhibition and cognitive flexibility. The EXPO Foundations pathway will continue for a total of 12 weeks.

All participants will complete laboratory and parent-report measures of EF immediately post-intervention and 3 months later. Participants in the delayed-treatment control condition will not receive EXPO during the initial study period but will complete the same assessments as participants in the EXPO intervention. Following completion of the 3-month follow-up, participants in the delayed-treatment control condition will be offered the EXPO intervention.

Typ studie

Intervenční

Zápis (Odhadovaný)

150

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

Studijní místa

    • CO
      • Padova, CO, Itálie, 80526
    • Colorado
      • Fort Collins, Colorado, Spojené státy, 80523
        • Colorado State University
        • Vrchní vyšetřovatel:
          • Deborah Fidler, PhD
        • Kontakt:
        • Kontakt:
        • Dílčí vyšetřovatel:
          • Nathaniel Riggs, Phd
        • Dílčí vyšetřovatel:
          • Susan Hepburn, PhD
        • Dílčí vyšetřovatel:
          • Lisa Daunhauer, ScD

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dítě

Přijímá zdravé dobrovolníky

Ne

Popis

Inclusion Criteria:

  • confirmed medical diagnosis of Down syndrome

Exclusion Criteria:

  • no complete hearing or vision loss
  • primary exposure to English or Italian

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Sekvenční přiřazení
  • Maskování: Singl

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Žádný zásah: Delayed-Treatment Control
Participants do not receive EXPO during the initial study period and complete the same EF assessments as participants in the EXPO intervention pathways. Participants are offered the EXPO intervention following completion of the 3-month follow-up.
Experimentální: EXPO Standard Pathway
Early responders to EXPO at the stage 1 evaluation are assigned to the standard, 12 -week intervention with activities refined from EXPO 2.0.
EXPO is a novel intervention that targets the development of EF through play-based opportunities for children with DS and their primary caregivers. EXPO is a 'syndrome-informed' intervention in that all activities are tailored to phenotypic strengths and challenges associated with DS, accounting for cognitive, language, and motor presentations frequently observed in this population. EXPO is also designed to elicit maximal engagement and enjoyment for children and their caregivers by embedding opportunities to strengthen EF component processes in the context of play and games.
Ostatní jména:
  • Executive Function Play Opportunities
Aktivní komparátor: Adaptive Pathway 1/EXPO Extended
Half of participants classified as slower responders to EXPO at the stage 1 evaluation are randomly assigned to EXPO Extended. EXPO Extended provides the standard pathway activities with an extended 18-week schedule.
Alternative EXPO pathway that extends the length of the EXPO intervention from 12 to 18 weeks to provide more time and opportunity for skill acquisition.
Aktivní komparátor: Adaptive Pathway 2/EXPO Foundations
Half of participants classified as slower responders to EXPO at the stage 1 evaluation are randomly assigned to EXPO Foundations. EXPO Foundations provides a more foundational pathway with simplified activities, and additional activities that emphasize early communication and regulatory processes.
An augmented version of EXPO that places a greater emphasis on precursors to EXPO activity engagement, including an increased number of social routine activities, enhanced presses for social communication behaviors like joint attention, enhanced focus on early self-regulation skills, and adaptations of all EXPO activities in each block that emphasize more foundational aspects of play.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Adapted Reverse Categorization
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Rule switch task that involves sorting by color, and then reversing the sort rule
From enrollment to the end of treatment, with a 3-month follow-up
Zoo Animal Switch
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Rule switch task that involves sorting large and small animal pairs by size into large and small buckets, then reversing the rule to put large animals into the small bucket, and small animals into the large bucket
From enrollment to the end of treatment, with a 3-month follow-up
Developmental Profiles-4 Cognitive domain
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Growth Scale Values in the Developmental Profiles-4 Cognitive domain
From enrollment to the end of treatment, with a 3-month follow-up
Developmental Profiles-4 Social-emotional domain
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Growth Scale Values in the Developemental Profiles-4 Social-Emotional domain
From enrollment to the end of treatment, with a 3-month follow-up

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
iBehavior Ecological Momentary Assessment
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
From enrollment to the end of treatment, with a 3-month follow-up
Self ordered pointing: Garage Game
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Self-ordered pointing task that requires working memory/updating
From enrollment to the end of treatment, with a 3-month follow-up
BRIEF-Preschool Inhibition Domain
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Standardized Caregiver Report of Executive Functioning for Preschool aged children
From enrollment to the end of treatment, with a 3-month follow-up
Hearts and Flowers
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Opposites task that involves matching cards to the opposite type of card
From enrollment to the end of treatment, with a 3-month follow-up
Developmental Profiles-4 Adaptive Behavior domain
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Growth Scale Values in the Developmental Profiles-4 Adaptive Behavior domain
From enrollment to the end of treatment, with a 3-month follow-up
Building Task
Časové okno: From enrollment to the end of treatment, with a 3-month follow-up
Shape design task that involves reproducing a pattern of blocks according to a design produced by the examiner
From enrollment to the end of treatment, with a 3-month follow-up

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Spolupracovníci

Vyšetřovatelé

  • Vrchní vyšetřovatel: Deborah Fidler, Colorado State University

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. září 2026

Primární dokončení (Odhadovaný)

31. srpna 2029

Dokončení studie (Odhadovaný)

30. listopadu 2029

Termíny zápisu do studia

První předloženo

17. června 2026

První předloženo, které splnilo kritéria kontroly kvality

25. srpna 2026

První zveřejněno (Aktuální)

28. srpna 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

28. srpna 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

25. srpna 2026

Naposledy ověřeno

1. srpna 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • 7190 (CTEP)
  • R61HD115161 (Grant/smlouva NIH USA)

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

Upon completion of this study, and annually throughout the thre-year project period, our team will share all developmental and behavioral with the NIH INCLUDE Data Coordinating Center.

Data will also be collected from a parent or guardian via questionnaire and the iBehavior smartphone application. Data that will be preserved and shared include demographic information, developmental assessments composite scores, caregiver rating composite scores for behavioral dimensions, and caregiver-reported iBehavior composite data. The data transformation approach for all aggregate-level data will be specified in detail in a protocol manual for reproducibility. Information regarding data content, format, and organization will be available to any research colleagues accessing the DCC database. All shared data will be formatted in accordance with current standards and norms in the field of

Časový rámec sdílení IPD

Nov 30, 2029

Kritéria přístupu pro sdílení IPD

Data will be made available within the NIH INCLUDE DCC system, allowing researchers to access it in accordance with their approved access level. All data and secondary analyses will be included in the DCC. The DCC will use its current policies and procedures for access by interested research teams.

Typ podpůrných informací pro sdílení IPD

  • PROTOKOL STUDY
  • MÍZA
  • ICF

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .