ClinicalTrials.gg
RecruitingNCT05185726TreatPaCSUpdated Nov 4, 2022

TreatPaCS = Treatment for Preschool Age Children Who Stutter

An interventional study of Lidcombe Program and Mini-KIDS in Stuttering, Developmental, sponsored by Thomas More University of Applied Sciences. Recruiting at 1 site in Belgium. Open to participants aged 24 Months to 78 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-11-04.

Sponsored by Thomas More University of Applied Sciences · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Apr 2025, 1 year 7 months ago, but the record still lists the study as recruiting.
  • Started Apr 2022; still recruiting 4 years 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
249
Allocation
Randomized
Ages
24 Months to 78 Months
Sex
All
01

Study summary

Treatment for preschool age children who stutter: a randomised, multicentre, non-inferiority parallel group pragmatic trial with Mini-KIDS, the social cognitive behaviour therapy and the Lidcombe Program with 249 children

Read the detailed description

Three treatment approaches for preschool age children who stutter are delivered and %Syllables Stuttered at 18 months post-randomisation of the three arms are compared .

Mini-KIDS is a direct treatment based on principles of stuttering modification, with pseudo-stuttering, that is, deliberate stuttering, as one of the main components. The program for 4-6-year old children consists of four stages: Stage 1 = desensitization, Stage 2 = modification, Stage 3 = identification and Stage 4 = generalization. The program for 2-4-year old children does not include stage 3. Speech therapist and parent(s) are the speech model for the child. They add normal dysfluencies to their speech. Later on in treatment and if necessary, children learn to recognise and alter their stuttering moments.

The social cognitive behaviour therapy contains 5 treatment phases: (1) conditioning speaking activities, (2) cognitive training focused on emotions, (3) cognitive training focused on cognitions, (4) emotional training and (5) skill training (Boey, 2010). This treatment is not directed at the speech of the children, but rather at the cognitive and emotional aspects that surround the stuttering.

The Lidcombe Program (LP) is an operant program that directly provides verbal feedback to the child's stutter-free speech (mainly) and the child's stuttering (occasionally). The program comprises two stages: Stage 1 in which (near) zero levels of stuttering are achieved and Stage 2 in which the achieved (near) zero levels of stuttering are maintained for a long period of time. The LP usually takes between 11 to 23 (60-minute) treatment sessions to achieve the goals of Stage 1, i. e. (near) zero levels of stuttering.

02

Conditions studied

  • Stuttering, Developmental

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03

In context

Stuttering

74 studies on the registry are indexed under Stuttering; 23 are open to participants now.

This study's planned enrollment of 249 is above the median of 44 across 57 interventional studies indexed under Stuttering.

Browse Stuttering studies →

Lead sponsor

Thomas More University of Applied Sciences is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
24 Months to 78 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

Preschool age children must

  • stutter (identified by the Speech-Language Therapist)
  • be aged between 2 - 6.5 years
  • have normal hearing reported by the parent(s)
  • have, if bilingual, a parent who speaks a language that the SLT understands and speaks to allow clear communication
  • have at least one parent agreeing to be intensively involved in treatment and knowing that s/he will implement treatment at home
  • have at least one parent who is willing and able to videorecord his/her child regularly

Exclusion criteria

Exclusion Criteria:

  • have a syndrome such as Down Syndrome.
05

Study design

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

Study arms

  • Experimental
    Mini-KIDS

    Mini-KIDS is a direct treatment based on principles of stuttering modification, with pseudo-stuttering, that is, deliberate stuttering, as one of the main components. The program for 4-6-year old children consists of four stages: Stage 1 = desensitization, Stage 2 = modification, Stage 3 = identification and Stage 4 = generalization. The program for 2-4-year old children does not include stage 3. Speech therapist and parent(s) are the speech model for the child. They add normal dysfluencies to their speech. Later on in treatment and if necessary, children learn to recognise and alter their stuttering moments.

    Behavioral: Mini-KIDS

  • Experimental
    Social-Cognitive Behaviour Treatment

    The social cognitive behaviour therapy contains 5 treatment phases: (1) conditioning speaking activities, (2) cognitive training focused on emotions, (3) cognitive training focused on cognitions, (4) emotional training and (5) skill training (Boey, 2010). This treatment is not directed at the speech of the children, but rather at the cognitive and emotional aspects that surround the stuttering.

    Behavioral: Social Cognitive Behavioural Therapy

  • Active comparator
    Lidcombe Program

    The Lidcombe Program (LP) is an operant program that directly provides verbal feedback to the child's stutter-free speech (mainly) and the child's stuttering (occasionally). The program comprises two stages: Stage 1 in which (near) zero levels of stuttering are achieved and Stage 2 in which the achieved (near) zero levels of stuttering are maintained for a long period of time. The LP usually takes between 11 to 23 (60-minute) treatment sessions to achieve the goals of Stage 1, i. e. (near) zero levels of stuttering.

    Behavioral: Lidcombe Program

Interventions

  • BehavioralLidcombe Program

    The LP consists of Stage 1 and Stage 2. Stage 1 aims at reducing the stuttering of the PCWS to (near) zero levels of stuttering. During stage 1, parents learn to provide verbal contingencies during daily, 10-minute practice sessions with their PCWS. During Stage 1, treatment sessions are scheduled weekly. When the child has typical scores of 0 and 1 on the SR-scale with more 0s than 1s per week for three consecutive weeks, and the stuttering is rated as 0 or 1 during the treatment session, the child can proceed to stage 2. The maintenance phase starts when the stuttering is reduced to (near) zero stuttering and parents are able to implement the practice sessions when it is necessary (when stuttering relapses). Treatment sessions to monitor if achieved goals are maintained are scheduled with an interval of 2, 2, 4, 4, 8, 8 and 16 weeks.

    Also known as: LP

  • BehavioralMini-KIDS

    Mini-KIDS for 4-6-year old PCWS consists of four stages: Stage 1 = desensitization, Stage 2 = identification, Stage 3 = modification and Stage 4 = generalization. The program for 2-4-year old child does not include stage 2. SLT and parent(s) are the speech model for the child. They add normal disfluencies and pseudo-stuttering to their speech at first to make sure the child dares to stutter and the child as well as the parent(s) are desensitized for it. Later on in treatment and if necessary, child learn to recognise and alter their stuttering moments. The maintenance phase starts when the child and parent(s) achieved the goals of Stage 4. Usually the stuttering is reduced to (near) zero stuttering. Treatment sessions to monitor if achieved goals are maintained are scheduled with an interval of 2, 2, 4, 4, 8, 8 and 16 weeks.

  • BehavioralSocial Cognitive Behavioural Therapy

    A parent training is organised for parents with children who stutters who receive SCBT. The parent training exists of 10 one-hour group evening sessions for parents to discuss and offer education topics about what stuttering is, how stuttering looks like, ... The program is delivered in 5 phases and each phase takes as long as is necessary for the PCWS (variable): (1) conditioning speaking activities, (2) cognitive training focused on emotions, (3) cognitive training focused on cognitions, (4) emotional training and (5) skill training. The maintenance phase starts when the child and parent(s) achieved the goals of the 5 phases. During the maintenance sessions, the SLT asks the parent(s) to report about the child and observes the speech of the child.

    Also known as: SCBT

06

What researchers measure

Primary outcomes

  1. % of Syllables Stuttered (%SS)

    The %SS at 18 months post-randomisation will be determined in two video samples (at home and in the treatment session) and the average will be used. They will be conpared between the 3 programs.

    Time frame: 18 months post-randomisation

Secondary outcomes

  1. Severity rating of the stuttering

    The severity rating of the stuttering will be averaged over home and treatment session and will be compared between the 3 programs

    Time frame: 3-, 6-, 9-, 12-, 18-months and 2- and 5-year post-randomisation

  2. Speech attitude (Kiddy CAT) scores

    Score on the KiddyCAT will be compared between the 3 programs

    Time frame: 18-months post-randomisation

  3. Score on Quality of life questionnaire

    Score on the EQ-5D-Y-proxy 2 will be compared between the 3 programs

    Time frame: at 18-months, 2- and 5-years post-randomisation

  4. Score on Impact of Stuttering on Parents and Preschooler (ISPP) questionnaire

    Score on the ISPP will be compared between the 3 programs

    Time frame: at 18-months post-randomisation

  5. % of Syllables Stuttered (%SS)

    The %SS will be determined in two video samples (at home and in the treatment session) and the average will be used. They will be conpared between the 3 programs.

    Time frame: 3-, 6-, 9-, 12-months and 2- and 5-year post-randomisation

  6. Treatment duration (number of hours)

    Treatment duration will be calculated in number of hours

    Time frame: Through study completion, on average 9 months

  7. Treatment duration (number of weeks)

    Treatment duration will be calculated in number of weeks

    Time frame: Through study completion, on average 9 months

  8. Treatment duration (number of sessions)

    Treatment duration will be calculated in number of weeks

    Time frame: Through study completion, on average 9 months

07

Study locations

1 of 1 sites recruiting
  • Sabine Van Eerdenbrugh
    Antwerpen, Belgie 2000, Belgium
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Apr 2022 (actual). Primary completion is estimated for Apr 2025, 36 months after the start.

Of 37 interventional studies with no phase under Stuttering, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 38. This study's planned 36 months is above that.

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

Registered
Dec 8, 2021
First posted
Jan 11, 2022
StartActual
Apr 1, 2022
Primary completionEst.
Apr 1, 2025
CompletionEst.
Nov 1, 2025
Last update
Nov 4, 2022
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 Nov 4, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05185726
Lead sponsor
Thomas More University of Applied Sciences
Collaborators
Universiteit Antwerpen, University of Liege, Artevelde University of Applied Sciences
Responsible party
Sponsor
First posted
Jan 11, 2022
Start date
Apr 1, 2022
Primary completion
Apr 1, 2025 (estimated)
Completion
Nov 1, 2025 (estimated)
Last update
Nov 4, 2022

Study contacts

Sabine Van Eerdenbrugh, Dr
Contact
sabine.vaneerdenbrugh@thomasmore.be
+3234324040
Anne-Lise Leclercq, Dr
Contact
al.leclercq@uliege.be
+32479355044
Sabine Van Eerdenbrugh, Dr
principal investigator · Thomas More

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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