Developmental Language DisorderDLDNCT07519629
Training Caregivers to Teach Vocabulary to Children With Language Impairment
A study testing Robust vocabulary intervention in people with Developmental Language Disorder, run by Northern Arizona University at 1 site in United States.
Trial summary
The purpose of this study is to determine whether Spanish-speaking caregivers can learn to teach science vocabulary to their children with the use and educational app and a short training video with target words. Read more about this study
- Who is it for?
- Ages 4 to 6 years
- Conditions the study is for
- Developmental Language Disorder
- What is being tested?
- Robust vocabulary intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 64 participants
- Where
- 1 siteUnited States
- Study dates
- 23 Feb 2026to 31 Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 4 to 6 years
- All sexes
- No healthy volunteers
- Child
Who may be able to join
- Children:
- age (4-6) and not have completed kindergarten prior to pretesting
- pass a hearing screening to rule out hearing loss as a cause for language impairment
- speak Spanish at least 50% of their day reported in BIOS
- have a confirmed diagnosis of DLD via the BESA
- not have a diagnosis of intellectual disability via Matrices subtest or social communication disorder via Social Communication Questionnaire
Show all 11Show fewer
- be able to speak with at least 3-word utterances
- Caregivers:
- have access to a smart phone
- spend time with the child participant daily
- speak fluent Spanish
Who cannot join
- -
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
NAU Speech-Language-Hearing Clinic
Flagstaff, Arizona, 86011
Lindsey A Hiebert, Ph.D., 928-523-2109, Lindsey.Hiebert@nau.edu
About this study
Official title: Caregiver Spanish Intervention Training for Children With Developmental Language Disorder
The purpose of this study is to determine whether Spanish-speaking caregivers can learn to teach science vocabulary to their children with the use and educational app and a short training video with target words. The children will take language, speech, and hearing tests, as well as science and vocabulary pretests with a speech-language pathologist. You will be asked to answer some questions about your language use in the house and other places. If you and your child qualify for the study, the researcher will randomly place you a group to 1) use the app, or 2) use books. Since you are chosen at random, there is no way of knowing which group you and your child will be in before you start. Participants will take part in an 11-week study (3 weeks of testing at the beginning, middle, and end of study, and 8 weeks of intervention). The testing will be conducted in a place that is comfortable for your child (home, school, university clinic). The intervention can be done at home (researchers will not be present for this part of the study, but we will be available to support you or answer questions). We want you to play (group 1) or read (group 2) with your child two times a week (~30 minutes) and send the audio recording of your interaction to our researchers.
- Conditions
- Developmental Language Disorder
- Being tested
- Robust vocabulary intervention
- Keywords
- caregiver intervention, bilingual, implementation science, vocabulary
- Medical subject headings
- Language Development Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Robust vocabulary interventionBehavioural
Caregivers will be trained to teach target vocabulary to their children
| Study group | Role | What they receive |
|---|---|---|
| Caregiver delivered vocabulary intervention | Experimental | Caregivers will be trained to teach target vocabulary to their child during science activities Receives: Behavioral: Robust vocabulary intervention |
| Caregiver-child book sharing | No intervention | Caregivers will read books on target science concepts twice a week with their child |
What is being measured
The primary outcome is the main question the study is designed to answer.
Caregiver fidelity
Caregivers will use target vocabulary words a specified number of times during science activity with their child, as measured by review of audio recorded sessions.
Measured: 11 weeks
Improved Tier-2 vocabulary for children
Children will be tested at baseline, mid intervention, and post intervention to determine if target vocabulary words were learned during caregiver provided intervention.
Measured: 11 weeks
Modify intervention and training
Barriers and facilitators of teaching caregivers robust vocabulary intervention will be recorded and coded from caregiver focus group responses.
Measured: 11 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Apr 2026
- Study start23 Feb 2026
- Primary completion31 Dec 2026 (estimated)
- Study completion31 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Developmental Language DisorderStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 64 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Northern Arizona University
- Sponsor type
- University, hospital or other
- Collaborators
- National Institute on Minority Health and Health Disparities (NIMHD)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07519629
- Sponsor's protocol ID
- 2161898
- Other IDs
- U54MD012388
- Acronym
- DLD
- Status last verified
- Apr 2026
- First submitted
- 27 Mar 2026
- Last updated
- 9 Apr 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 9 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Caregiver Spanish Intervention Training for Children With Developmental Language Disorder
- ClinicalTrials.gov ID
- NCT07519629
- Acronym / sponsor ID
- DLD / 2161898
- Conditions
- Developmental Language Disorder
- Keywords
- caregiver intervention, bilingual, implementation science, vocabulary
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 64 participants (estimated)
- Lead sponsor
- Northern Arizona UniversityUniversity, hospital or other
- Collaborators
- National Institute on Minority Health and Health Disparities (NIMHD)
- Study start
- 23 Feb 2026 (actual)
- Primary completion
- 31 Dec 2026 (estimated)
- Study completion
- 31 Dec 2027 (estimated)
- First posted
- 9 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine whether Spanish-speaking caregivers can learn to teach science vocabulary to their children with the use and educational app and a short training video with target words. The children will take language, speech, and hearing tests, as well as science and vocabulary pretests with a speech-language pathologist. You will be asked to answer some questions about your language use in the house and other places. If you and your child qualify for the study, the researcher will randomly place you a group to 1) use the app, or 2) use books. Since you are chosen at random, there is no way of knowing which group you and your child will be in before you start. Participants will take part in an 11-week study (3 weeks of testing at the beginning, middle, and end of study, and 8 weeks of intervention). The testing will be conducted in a place that is comfortable for your child (home, school, university clinic). The intervention can be done at home (researchers will not be present for this part of the study, but we will be available to support you or answer questions). We want you to play (group 1) or read (group 2) with your child two times a week (~30 minutes) and send the audio recording of your interaction to our researchers.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Caregiver delivered vocabulary intervention | Experimental | Behavioral: Robust vocabulary interventionCaregivers will be trained to teach target vocabulary to their child during science activities |
| Caregiver-child book sharing | No intervention | –Caregivers will read books on target science concepts twice a week with their child |
Who may qualify
- Ages
- 4 to 6 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
Key inclusion criteria (11 listed)
- age (4-6) and not have completed kindergarten prior to pretesting
- pass a hearing screening to rule out hearing loss as a cause for language impairment
- speak Spanish at least 50% of their day reported in BIOS
- have a confirmed diagnosis of DLD via the BESA
- not have a diagnosis of intellectual disability via Matrices subtest or social communication disorder via Social Communication Questionnaire
Key exclusion criteria (1 listed)
- -
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Robust vocabulary interventionCaregivers will be trained to teach target vocabulary to their children | Behavioural | Caregiver delivered vocabulary intervention |
Primary outcome
Caregiver fidelity
Time frame: 11 weeks
Caregivers will use target vocabulary words a specified number of times during science activity with their child, as measured by review of audio recorded sessions.
Improved Tier-2 vocabulary for children
Time frame: 11 weeks
Children will be tested at baseline, mid intervention, and post intervention to determine if target vocabulary words were learned during caregiver provided intervention.
Modify intervention and training
Time frame: 11 weeks
Barriers and facilitators of teaching caregivers robust vocabulary intervention will be recorded and coded from caregiver focus group responses.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Apr 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Robust vocabulary intervention in people with Developmental Language Disorder, run by Northern Arizona University 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 11 inclusion and 1 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: looking for participants now, as of the sponsor's last update on 9 Apr 2026. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Lindsey A Hiebert, Ph.D. (928-523-2109, Lindsey.Hiebert@nau.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Caregiver fidelity (time frame: 11 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 9 Apr 2026.