ClinicalTrials.gg
RecruitingNCT07931898ORAR SGUpdated Nov 12, 2026

Use of an AI-powered Mobile Health App in Assessing and Training Oral Motor Functions

An observational study in Stroke, Dysarthria and Healthy Adult Participants, sponsored by The Hong Kong Polytechnic University. Recruiting at 2 sites in 2 countries. Open to participants aged 21 Years to 79 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-12.

Sponsored by The Hong Kong Polytechnic University · Observational

From the registry’s dates

  • Started Feb 2026; still recruiting 9 months later.
Updated Nov 12, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
405
Ages
21 Years to 79 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 73 studies in Stroke by The Hong Kong Polytechnic University — 32 open to participants now, 34 under way, none of them phase 3. Stroke · The Hong Kong Polytechnic University.

Started
2026
with 9 others
Observational
3 of 73
2 open now
Primary completion
2028-08
later than 31 of 33 live
Registered
73rd of 73
by date

Among the 73 studies in Stroke by The Hong Kong Polytechnic University, this one is one of 10 that started in 2026, is one of 3 observational ones, reaches primary completion later than 31 of the 33 other live ones, and was the 73rd registered.

Stroke

8,255 studies on the registry are indexed under Stroke; 2,056 are open to participants now.

Browse Stroke studies →

Open to participants now

32 of the 73 studies in Stroke by The Hong Kong Polytechnic University are open now, in 3 countries. Recruiting first, the newest first:

26 more — sign in →

By country, each count listing its studies:

All 32 open studies →

Where they have run

Who these studies take

Of the 1,415 Stroke studies recruiting now, 697 (49%) set no upper age limit and 280 (20%) stop at 75 or younger; 77 take children under 18; 196 take healthy volunteers.

This study: 21 Years to 79 Years · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 73 studies in Stroke by The Hong Kong Polytechnic University, or all of them as a file.
02

Study summary

This project aims to evaluate the usability of the ORAR app developed by HKPU and normed on the Hong Kong Chinese population, with the Singapore Malay and Chinese population.

It aims to:

  1. Establish normative data of the oromotor performance of neurologically healthy bilinguals of Malay ethnicity and/or Chinese ethnicity across a range of speech and non-speech tasks.
  2. Determine the factors (e.g., gender, age, education, type of stimuli, ethnicity) that influence oro-motor performance of Malay and Chinese adults respectively in Singapore.
  3. Collect feedback to evaluate the usability, acceptability and feasibility of the ORAR app from different users, namely the SLTs, persons with dysarthria and their caregivers.
03

Conditions studied

  • Stroke
  • Dysarthria
  • Healthy Adult Participants

Browse trials for

Keywords

  • mobile health app
  • oral-motor
  • artificial intelligence
  • dysarthria
  • oral-motor training
  • oral-motor functions
04

Who can participate

Ages eligible
21 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

The study aims to recruit 150 Singaporean Malay bilinguals and 150 Singaporean Chinese bilinguals. These participants will comprise a range of ages (21-79 years old), with 25 participants from each decade age group.

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) Adults aged 21-79 years who are Singapore citizens
  • (2) Absence of severe systemic conditions, including uncontrolled diabetes, cerebrovascular disease, head and neck tumours, or neurological disorders
  • (3) Not currently undergoing radiation therapy or chemotherapy
  • (4) Normal or corrected-to-normal vision and hearing
  • (5) Fluent in Malay/ English respectively
  • (6) No history of speech difficulties/disorders

Inclusion criteria for participants with dysarthria:

  • (1) Adults aged 21-79 years who are Singapore citizens
  • (2) Absence of severe systemic conditions, including uncontrolled diabetes, cerebrovascular disease, head and neck tumours, or neurological disorders
  • (3) Not currently undergoing radiation therapy or chemotherapy
  • (4) Normal or corrected-to-normal vision and hearing
  • (5) Fluent in Malay/ English respectively

Additional inclusion criteria for SLTs:

  • (1) AHPC licensed
  • (2) have been practising in Singapore for at least one year

Exclusion criteria

Exclusion Criteria:

  • (1) individuals who are dependent on non-oral feeding
  • (2) individuals unable to provide due to cognitive impairment
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
405 participants (estimated)
Target follow-up
1 Day
Patient registry
Yes

Groups and cohorts

  • healthy adults

    For the normative study: 150 individuals of Malay descent (e.g., Boyanese, Javanese, Banjarese, Bugis, and Indonesian extract) and 150 bilingual Chinese individuals. Another 35 speech-language therapists and carers of dysarthric pateints will be recruited. Inclusion criteria for healthy adults in the normative study, as well as SLTs and caregivers of individuals with dysarthria in the implementation study are as follows: (1) Adults aged 21-79 years who are Singapore citizens, (2)absence of severe systemic conditions, including uncontrolled diabetes, cerebrovascular disease, head and neck tumours, or neurological disorders, (3) not currently undergoing radiation therapy or chemotherapy, (4) normal or corrected-to-normal vision and hearing, (5) fluent in Malay/ English respectively, (6) no history of speech difficulties/disorders. Additional inclusion criteria for SLTs are: (1) AHPC licensed and (2) have been practising in Singapore for at least one year.

  • Dysarthria group

    35 individuals with neurogenic dysarthria will be recruited. For the implementation study, inclusion criteria for participants with dysarthria include (1) to (5) above, with the exception of a history of stroke, and being diagnosed with an acquired speech sound disorder by an SLT. Exclusion criteria include (1) individuals who are dependent on non-oral feeding, (2) individuals unable to provide informed consent due to cognitive impairment. Written or digital consent will be obtained from all participants prior to participation.

    Behavioral: Feasibility and user acceptance of mobile app for oral motor training

Interventions

  • BehavioralFeasibility and user acceptance of mobile app for oral motor training

    Feasibility Study: Participants wi l first complete a demographic form that collects information such as age, occupation, gender, housing type, and dental history. This study will be conducted in a controlled environment, such as a quiet room at SIT, clinics, and participants' homes, under the guidance of SLT students. Participants wi l complete three 4-item measures of implementation outcomes - Acceptability of Intervention Measure (AIM), Intervention Appropriateness Measure (IAM), and Feasibility of Intervention Measure (FIM; Weiner et al., 2017). Subsequently, they will be given 30 minutes to explore and experiment with the app's different features. Following this, participants will complete the AIM, IAM, and FIM again, as well as participate in a semi-structured interview with the SLT student on their experience using the app and feedback about the app. The app wil be available in Mandarin (Simplified) and English.

06

What researchers measure

Primary outcomes

  1. Range of movement of the articulators

    The range of movement of lips, tongue, and jaw of the participants will be analyzed by the computer vision model of ORAR to give range-of-motion scores.

    Time frame: 2-hr assessment

  2. Maximum phonation time

    Each participant will be asked to take a deep breathe and say 'ah' as long as they can. This will repeat for 3 times.

    Time frame: 2-hr assessment

  3. Diadochokinetic (DDK) rate

    The number of repeated syllables, trisyllabic non-word, trisyllabic Malay real word (only for Malay participants), trisyllabic English real word produced in 8 seconds will be measured.

    Time frame: 2-hr assessment

  4. Reading aloud a word list

    Participants will be asked to read aloud a word list covering phonetic inventory of the language and multisyllabic words (English: 38 words from Robertson Dysarthria Profile; Malay: 30 words selected from Malay Lexicon Project).

    Time frame: 2-hr assessment

  5. Personal narrative production

    Participants will be asked to recall a personal event.

    Time frame: 2-hr assessment

  6. Verbal fluency tasks

    Participants will be asked to produce as many items in a given category (e.g., fruits, vehicles) within a minute.

    Time frame: 2-hr assessment

  7. Acceptability, appropriateness and feasibility of ORAR

    A semi-structured interview will be conducted. Questions regarding the acceptability, apropriateness and feasibility of ORAR app will be asked.

    Time frame: 2-hr assessment

Secondary outcomes

  1. Eating Assessment Tool (EAT-10) questionnaire as a self-reported outcome instrument on swallowing functions

    The questionnaire consists of 10 questions, and participants will be asked to evaluate their swallowing functions based on a 5-point Likert scale (0=not at all; 4=very much). Lower scores reflect better swallowing performance. Maximum and minimal scores are 40 and 0, respectively.

    Time frame: 2-hr assessment

  2. The Oral Health Impact Profile-14 (OHIP-14) questionnaire to assess oral health-related quality of life

    Participants will be asked to give ratings on the questionnaire based on a 5-point Likert scale. Lower scores represent better oral condition-related quality of life. The maximum and minimum scores are 56 and 0, respectively.

    Time frame: 2-hr assessment

07

Study locations

1 of 2 sites recruiting
08

References and documents

Publications

  • Azevedo, N., Kehayia, E., Jarema, G., Le Dorze, G., Beaujard, C., & Yvon, M. (2023). How artificial intelligence (AI) is used in aphasia rehabilitation: A scoping review. Aphasiology, 38(2), 305-336.
  • Barbera DS, Huckvale M, Fleming V, Upton E, Coley-Fisher H, Doogan C, Shaw I, Latham W, Leff AP, Crinion J. NUVA: A Naming Utterance Verifier for Aphasia Treatment. Comput Speech Lang. 2021 Sep;69:None. doi: 10.1016/j.csl.2021.101221. PubMed 34483474 ↗
  • Chen AW, Koh YT, Leong SW, Ng LW, Lee PS, Koh GC. Post community hospital discharge rehabilitation attendance: Self-perceived barriers and participation over time. Ann Acad Med Singap. 2014 Mar;43(3):136-44. PubMed 24714707 ↗
  • Kim Y, Kim M, Kim J, Song TJ. Smartphone-Based Speech Therapy for Poststroke Dysarthria: Pilot Randomized Controlled Trial Evaluating Efficacy and Feasibility. J Med Internet Res. 2024 Apr 25;26:e56417. doi: 10.2196/56417. PubMed 38509662 ↗
  • Macoir J, Lavoie M, Routhier S, Bier N. Key Factors for the Success of Self-Administered Treatments of Poststroke Aphasia Using Technologies. Telemed J E Health. 2019 Aug;25(8):663-670. doi: 10.1089/tmj.2018.0116. Epub 2018 Aug 24. PubMed 30142032 ↗
  • Ng CS, Toh MP, Ng J, Ko Y. Direct medical cost of stroke in Singapore. Int J Stroke. 2015 Oct;10 Suppl A100:75-82. doi: 10.1111/ijs.12576. Epub 2015 Jul 14. PubMed 26179153 ↗
  • Venketasubramanian N, Yin A, Lee LB, De Silva DA. Two decades of nation-wide community-based stroke support - The Singapore National Stroke Association. Int J Stroke. 2017 Apr;12(3):297-301. doi: 10.1177/1747493016676620. Epub 2016 Oct 24. PubMed 27777378 ↗
  • Wang Z, Shi R, Moreira P. Post-stroke dysphagia: identifying the evidence missing. Front Med (Lausanne). 2025 Feb 26;12:1494645. doi: 10.3389/fmed.2025.1494645. eCollection 2025. PubMed 40078394 ↗
  • Wong, W. S., Zhou, T. Y., Liu, Y., Tsang, H. T., Luk, C. L., Chan, T. H., Lam, W. Y. H., Wong, W. W. S., & Tsoi, J. K. H. (2023, June 21-24). Home-based app for oral muscle exercises (HOE): A preliminary study. Poster presented at the 2023 IADR/LAR General Session & Exhibition with WCPD (101st General Session & Exhibition of the IADR), Bogotá, Colombia.

Individual participant data

Plan to share: Yes — The IPD, together with the study protocol, will be shared in an open-access data repository (e.g., OSF).

Supporting information: Study protocol, Informed consent form

Time frame: Data will be shared starting from three months after manuscript publication.

Access criteria: The IPD and study protocol will be shared in an open-access data repository without restrictions.

09

Timeline

1 registry update 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 Feb 2026 (actual). Primary completion is estimated for Aug 2028, 30 months after the start.

Of 835 non-industry observational studies under Stroke, half reached primary completion within 41 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 92. This study's planned 30 months is below that.

Counting every sponsor, half of 897 studies reached it within 40 months; a quarter within 18 and three quarters within 85.

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

Registered
Nov 6, 2026
First posted
Nov 12, 2026
StartActual
Feb 1, 2026
Primary completionEst.
Aug 31, 2028
CompletionEst.
Aug 31, 2028
Last update
Nov 12, 2026
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.
Registered
First appeared on the registry. No changes since
Nov 12, 2026
Show all 1 update
  1. Nov 12, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07931898
Collaborators
Singapore Institute of Technology
Responsible party
Sponsor
First posted
Nov 12, 2026
Start date
Feb 1, 2026
Primary completion
Aug 31, 2028 (estimated)
Completion
Aug 31, 2028 (estimated)
Last update
Nov 12, 2026

Study contacts

Victoria Lai, PHD
Contact
victoria.lai@singaporetech.edu.sg
65 65921189

Oversight

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

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