ClinicalTrials.gg
CompletedNCT02158390MerckUpdated Jul 12, 2018

Phenotypic Specific Communication Intervention for Children With Down Syndrome

An interventional study of Jasper-EMT with words and AAC in Language Impairment and Down Syndrome, sponsored by Vanderbilt University. Completed at 2 sites in United States. Open to participants aged 30 Months to 54 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-07-12.

Sponsored by Vanderbilt University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
78
Allocation
Randomized
Ages
30 Months to 54 Months
Sex
All
01

Study summary

Children with Down syndrome (DS) have greater difficulty acquiring expressive language than is predicted by their general cognitive abilities and language comprehension (Miller, 1999). To date, interventions to improve communication outcomes for children with DS have met with only modest success. The proposed study is a randomized controlled trial of an early communication intervention combining two evidence-based treatments that teach expressive communication (Enhanced Milieu Teaching; EMT) and joint attention/symbolic play (Joint Attention Symbolic Play Engagement and Regulation; JASPER) using a dual mode (words +AAC). The intervention (a) teaches the foundations of communication (joint attention, play), (b) builds on positive child characteristics of social attention, (c) uses naturalistic strategies to increase the rate and complexity of communication and increase task engagement, (d) addresses the potential value of adding visual support (AAC) to spoken communication, and (e) includes parents as implementers of the intervention to promote generalization across settings and activities, and to ensure maintenance over time. It is hypothesized that children with DS enrolled in the intervention will have better language and communication skills at the end of treatment and followup than children in the BAU comparison group.The study will enroll 82 30 to 54 month old children with DS who have fewer than 20 words. Examining predictors of response to treatment and the effects of treatment on executive functioning will inform both theory and practice.

Read the detailed description

This is a two-site randomized controlled trial (RCT) of the efficacy of JASP-EMT, an innovative blended communication intervention, JASPER (joint engagement and play intervention), and EMT (Enhanced Milieu Teaching). The study evaluates the relative benefits of teaching young children with DS using dual communication modes: spoken words with AAC. JASP-EMT involves direct intervention with children as well as parent training in an attempt to increase generalization of intervention effects. A control group will receive community treatment as usual (BAU). Participants include 82 children with DS ages 30 to 54 months across two sites.

AIM 1: To examine the effects of an experimental intervention (Words + AAC) on primary (expressive language) and secondary outcomes (receptive language, symbolic play, symbol-infused joint engagement, and parent use of language support strategies).

H1: Children in the Words+AAC group will have significantly better primary and secondary outcomes than children in the control group.

H2: Parents of children in Words+AAC group will demonstrate increased use of language support strategies than parents of children in the control group.

AIM 2: To examine maintenance and generalization of the effects of the experimental interventions on children and their parents.

H3: Intervention effects will maintain at follow-up and generalize across contexts.

AIM 3 (exploratory): To examine the effect of potential child level moderators on the primary and secondary outcomes of the study.

H4: Child characteristics at baseline (e.g., speech intelligibility, cognitive level) will moderate primary child outcomes.

AIM 4 (exploratory): To examine the effect of the experimental intervention on executive functioning.

H5: Children in the Words+AAC group will demonstrate improved executive functioning following intervention relative to the children in the control group.

Participants

A total of 82 children and their parents will be recruited to the study (41 at Vanderbilt and 41 at UCLA). Child MA of 18 months ensures children have the cognitive skills for symbolic representation in communication. The sample is expected to be 40% minority with equal numbers of males and females. Most parents are expected to be lower to upper middle class mothers.

Summary of Intervention

The goal of the intervention is to help children with DS develop expressive language skills that will improve participation in social, academic and community environments. Children will receive direct intervention from a therapist; additionally, parents will be taught to use the Words + AAC strategies in the clinic and at home across routines. Therapists use all strategies throughout the intervention; parents learn strategies sequentially.

Length of Intervention: 4/week for 4 months (48 sessions); 40 minute clinic sessions, 60 minute home sessions Type of Intervention sessions: 6 workshops, 18 clinic training sessions, 24 home training sessions Mode: AAC (iPad) and verbal input and output Maintenance: every six weeks for 6 months after completion of the intervention

02

Conditions studied

  • Language Impairment
  • Down Syndrome

Keywords

  • Down syndrome
  • Language intervention
  • Communication intervention
03

In context

Language Disorders

91 studies on the registry are indexed under Language Disorders; 25 are open to participants now.

This study's enrollment of 78 is above the median of 56 across 75 interventional studies indexed under Language Disorders.

Browse Language Disorders studies →

Lead sponsor

Vanderbilt University is the lead sponsor of 520 studies on the registry; 18 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 5 (63%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
30 Months to 54 Months
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Diagnosis of DS from medical records.
  2. Mental age (MA) of 18 months as measured on the Visual Reception subtest of the Mullen Scales of Early Learning.
  3. Expressive vocabulary of fewer than 20 words at measured on a naturalistic language sample.
  4. Age between 30 and 54 months
  5. English or Spanish as the primary language at home.
  6. Parents who are willing to participate in parent training.

Exclusion criteria

Exclusion Criteria:

1. Major medical conditions other than DS, specifically (a) developmental disorders (e.g. autism); (b) sensory disabilities (e.g. blindness/deafness), and (c) motor disabilities not related to DS, (e.g. cerebral palsy)

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05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
78 participants (actual)

Study arms

  • Experimental
    Jasper-EMT with words and AAC

    Jasper-EMT with words and AAC A therapist plus parent implemented social communication intervention which include use of the iPad for a mode of communication. A total of 6 hour long workshops with the parent and 42 hour long intervention sessions with the child occur; half include the parent as therapist and occur in the home. The treatment lasts approximately 4 months.

    Behavioral: Jasper-EMT with words and AAC

  • No intervention
    Community treatment as usual

    Children access educational and speech-language interventions available to them through schools and community resources.

Interventions

  • BehavioralJasper-EMT with words and AAC

    Jasper-EMT with words and AAC A therapist plus parent implemented social communication intervention which include use of the iPad for a mode of communication. A total of 6 hour long workshops with the parent and 42 hour long intervention sessions with the child occur; half include the parent as therapist and occur in the home. The treatment lasts approximately 4 months.

06

What researchers measure

Primary outcomes

  1. Spoken language

    Spoken language is measured by transcribing child utterances ( spoken and AAC generated ) during 20 minute naturalistic language samples. Linguistic analysis are automated, via SALT.

    Time frame: up to 3 months

Secondary outcomes

  1. Receptive language

    Receptive language is assessed by child performance on the Preschool Language Scale 5th Edition ( PLS-5), a standardized language assessment.

    Time frame: up to 3 months

  2. Executive Functioning

    Children's executive functioning abilities will be assessed across a variety of tasks measuring persistence, planning, and attention.

    Time frame: up to 3 months

Other outcomes

  1. Parent use of Joint Attention Symbolic Play Engagement and Regulation- Enhanced Milieu Teaching ( Jasper-EMT) strategies

    Observations of parent-child interactions are coded to determine parent use of key intervention strategies.

    Time frame: up to 3 months

07

Study locations

2 sites
  • University of California, Los Angeles Center for Autism Research and Treatment
    Los Angeles, California 90024, United States
  • Vanderbilt University Kennedy Center
    Nashville, Tennessee 37203, United States
08

References and documents

Individual participant data

Plan to share: No — This project does not require a data sharing plan. Results will be reported on profession journals.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jun 2014, a primary completion of Aug 2017 and a completion of Feb 2018. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 4, 2014
First posted
Jun 6, 2014
Start
Jun 2014
Primary completionActual
Aug 30, 2017
CompletionActual
Feb 6, 2018
Last update
Jul 12, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 12, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02158390
Responsible party
Ann Kaiser (Susan W. Gray Professor of Education and Human Development, Vanderbilt University) — Principal investigator
First posted
Jun 6, 2014
Start date
Jun 2014
Primary completion
Aug 30, 2017
Completion
Feb 6, 2018
Last update
Jul 12, 2018

Study contacts

Ann P Kaiser, PhD
principal investigator · Vanderbilt University
Connie Kasari, PhD
study director · University of California, Los Angeles

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2018. You cannot join it, but the record below documents what was studied.

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