Obstructive Sleep ApneaNCT04124978
Evaluation of Prefabricated Adjustable Thermoplastic Mandibular Advancement Devices for Obstructive Sleep Apnoea
A study testing mandibular advancement device in people with Obstructive Sleep Apnea, run by Singapore General Hospital at 1 site in Singapore.
Trial summary
Use of mandibular advancement devices(MADs) in the treatment of Obstructive Sleep Apnea is established, however this is hampered by high costs, long wait times and non-assured success in the local Asian setting. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Obstructive Sleep Apnea
- What is being tested?
- mandibular advancement device
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 32 participants
- Where
- 1 siteSingapore
- Study dates
- 21 Jul 2017to 23 Apr 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 18years old and above
- English competency
- Formal diagnosis of mild-moderate OSA on PSG
- Ability to provide informed consent
Who cannot join
- diagnosed severe OSA
- evidence of central sleep apnea events
- dental conditions which preclude proper use of the MAD
- treatment with other devices (e.g. tongue retainers, PAP therapy)
- pregnancy
- known allergic reactions to the components of the study product were excluded from the trial.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation of the Effectiveness of Direct to Consumer Mandibular Advancement Devices as an Adjunct for the Treatment of Mild to Moderate Obstructive Sleep Apnoea (OSA)
Use of mandibular advancement devices(MADs) in the treatment of Obstructive Sleep Apnea is established, however this is hampered by high costs, long wait times and non-assured success in the local Asian setting. There are few studies which look at the use of prefabricated thermoplastic mandibular devices with a titratable component and its efficacy. In addition, it is direct-to-consumer and an economical option, thus there may be a role in the use of such devices to better select patients who may benefit and are thinking of using MADs.
The investigators aim to evaluate the effectiveness of the use of Prefabricated adjustable thermoplastic mandibular advancement devices(PAT-MADs)(MyTAP) in the treatment of OSA and its role for predicting treatment success in an Asian population.
Read the detailed description
Mandibular advancement devices (MAD) serve as an adjunct to the treatment of snoring as well as mild-moderate OSA. It is widely accepted that upper airway muscle activity decreases during sleep, leading to increased collapsibility of the pharyngeal tissues, mandibular opening and posterior displacement of the tongue. These changes result in narrowing of the oropharyngeal and hypopharyngeal airway (Hudgel 1992). Their primary action is to advance the mandible and tongue to increase the upper airway size. Recent systemic review on the effectiveness of MAD in treating OSA by Torres et al in the Laryngoscope showed that 16 out of 18 large scale studies showed significant improvement in Apnea-Hypopnea index (AHI).
There are a wide variety of MAD commercially available and they can be broadly divided into custom made vs prefabricated makes as well as titratable versus non-titratable types. It is shown that custom made, titratable fitted MADs are superior in efficacy as compared to their counterpart models. However, high cost, delayed waiting times and multiple clinic visits are required for patients to be fitted with custom MADs by a professional orthodontist. Newly developed direct to consumer thermoplastic MADs (MyTap) brings the benefit of mouldable bite and form "custom" fit with the option of titration to the user at a lower cost, technical ease of use and fit in the clinic setting.
Participants who are diagnosed with simple snoring or mild to moderate OSA are able to trial use thermoplastic MADs to have a sense of the level of comfort and effectiveness MAD can bring to improve their OSA, serving as a bridging device prior to committing to the use of custom made MAD.
The investigators aim to evaluate the effectiveness of the use of Prefabricated adjustable thermoplastic mandibular advancement devices(PAT-MADs)(MyTAP) in the treatment of OSA and its role for predicting treatment success, compliance and comfort in an Asian population.
- Conditions
- Obstructive Sleep Apnea
- Being tested
- mandibular advancement device
- Keywords
- obstructive sleep apnea, mandibular advancement device, thermoplastic, adjustable, MyTAP
- Medical subject headings
- Sleep Apnea, Obstructive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
mandibular advancement deviceDevice
use of prefabricated adjustable mandibular advancement device to improve OSA
| Study group | Role | What they receive |
|---|---|---|
| Intervention group | Experimental | prospective, single armed, single centre trial study using the MyTAP device on a daily basis for a period of 3 months Receives: Device: mandibular advancement device |
What is being measured
The primary outcome is the main question the study is designed to answer.
Apnea-Hypopnea Index (AHI)
apnea-hypopnea index
Measured: 3 months
Apnea index (AI)
apnea index
Measured: 3 months
Hypopnea index (HI)
Hypopnea index
Measured: 3 months
Oxygen disturbance index (ODI)
Oxygen disturbance index
Measured: 3 months
Lowest oxygen saturation (Lsat)
Lowest oxygen saturation
Measured: 3 months
Epworth sleepiness score (ESS)
Epworth sleepiness score measures the level of sleepiness in a participant. Minimum value of 0 to a maximum level of 24, whereby the higher the value, the sleepier the participant.
Measured: 3 months
Abbreviated functional outcomes of sleep questionnaire (FOSQ-10)
Quality of life survey made of up 10 self rated questions which assess the quality of sleep in participants with sleep disorders. Minimum value is 0 and maximum value is 40, where the lower the global value, the worse off the quality of sleep.
Measured: 3 months
Pittsburgh sleep quality index (PSQI)
Quality of life survey made up of 19 self rated questions which assesses the quality of 7 different aspects of sleep in participants with sleep disorders. Minimum value is 0 and maximum value is 21, where the higher the global value, the more severe the difficulties in different aspects of sleep.
Measured: 3 months
Secondary outcomes (1)
Predicting future use
if the use of PAT-MAD is an acceptable treatment to patients who are keen to try customizable MAD but are unsure of the treatment suitability and effectiveness for their OSA, in the form of adherence, self/3rd party reported symptom improvement and ease of use.
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Oct 2019
- Study start21 Jul 2017
- Primary completion23 Jan 2019
- Study completion23 Apr 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Obstructive Sleep ApneaStudies of the same condition, open and under way.
- More trials run by Singapore General HospitalThe sponsor's other registered studies.
- 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 32 participants (actual)
Sponsor and investigators
- Lead sponsor
- Singapore General Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Toh Song Tar, MBBS, Principal investigator, Singapore General Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04124978
- Sponsor's protocol ID
- 2016/3100
- Status last verified
- Oct 2019
- First submitted
- 10 Oct 2019
- Last updated
- 16 Oct 2019
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Publications
Soh L, Han HJ, Yue Y, Tay JY, Hao Y, Toh ST. Evaluation of prefabricated adjustable thermoplastic mandibular advancement devices (PAT-MADs) for obstructive sleep apnea: an Asian experience. Sleep Med. 2020 Nov;75:96-102. doi: 10.1016/j.sleep.2020.02.025. Epub 2020 Mar 7.
PubMed 32853924
Study at a glance
From the registry record, last updated by the sponsor on 16 Oct 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Effectiveness of Direct to Consumer Mandibular Advancement Devices as an Adjunct for the Treatment of Mild to Moderate Obstructive Sleep Apnoea (OSA)
- ClinicalTrials.gov ID
- NCT04124978
- Acronym / sponsor ID
- 2016/3100
- Conditions
- Obstructive Sleep Apnea
- Keywords
- obstructive sleep apnea, mandibular advancement device, thermoplastic, adjustable, MyTAP
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 32 participants (actual)
- Lead sponsor
- Singapore General HospitalUniversity, hospital or other
- Study start
- 21 Jul 2017 (actual)
- Primary completion
- 23 Jan 2019 (actual)
- Study completion
- 23 Apr 2019 (actual)
- First posted
- 14 Oct 2019 (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.
Use of mandibular advancement devices(MADs) in the treatment of Obstructive Sleep Apnea is established, however this is hampered by high costs, long wait times and non-assured success in the local Asian setting. There are few studies which look at the use of prefabricated thermoplastic mandibular devices with a titratable component and its efficacy. In addition, it is direct-to-consumer and an economical option, thus there may be a role in the use of such devices to better select patients who may benefit and are thinking of using MADs.
The investigators aim to evaluate the effectiveness of the use of Prefabricated adjustable thermoplastic mandibular advancement devices(PAT-MADs)(MyTAP) in the treatment of OSA and its role for predicting treatment success in an Asian population.
Detailed description
Mandibular advancement devices (MAD) serve as an adjunct to the treatment of snoring as well as mild-moderate OSA. It is widely accepted that upper airway muscle activity decreases during sleep, leading to increased collapsibility of the pharyngeal tissues, mandibular opening and posterior displacement of the tongue. These changes result in narrowing of the oropharyngeal and hypopharyngeal airway (Hudgel 1992). Their primary action is to advance the mandible and tongue to increase the upper airway size. Recent systemic review on the effectiveness of MAD in treating OSA by Torres et al in the Laryngoscope showed that 16 out of 18 large scale studies showed significant improvement in Apnea-Hypopnea index (AHI).
There are a wide variety of MAD commercially available and they can be broadly divided into custom made vs prefabricated makes as well as titratable versus non-titratable types. It is shown that custom made, titratable fitted MADs are superior in efficacy as compared to their counterpart models. However, high cost, delayed waiting times and multiple clinic visits are required for patients to be fitted with custom MADs by a professional orthodontist. Newly developed direct to consumer thermoplastic MADs (MyTap) brings the benefit of mouldable bite and form "custom" fit with the option of titration to the user at a lower cost, technical ease of use and fit in the clinic setting.
Participants who are diagnosed with simple snoring or mild to moderate OSA are able to trial use thermoplastic MADs to have a sense of the level of comfort and effectiveness MAD can bring to improve their OSA, serving as a bridging device prior to committing to the use of custom made MAD.
The investigators aim to evaluate the effectiveness of the use of Prefabricated adjustable thermoplastic mandibular advancement devices(PAT-MADs)(MyTAP) in the treatment of OSA and its role for predicting treatment success, compliance and comfort in an Asian population.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Intervention group | Experimental | Device: mandibular advancement deviceprospective, single armed, single centre trial study using the MyTAP device on a daily basis for a period of 3 months |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- 18years old and above
- English competency
- Formal diagnosis of mild-moderate OSA on PSG
- Ability to provide informed consent
Key exclusion criteria (6 listed)
- diagnosed severe OSA
- evidence of central sleep apnea events
- dental conditions which preclude proper use of the MAD
- treatment with other devices (e.g. tongue retainers, PAP therapy)
- pregnancy
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 |
|---|---|---|
| mandibular advancement deviceuse of prefabricated adjustable mandibular advancement device to improve OSA | Device | Intervention group |
Primary outcome
Apnea-Hypopnea Index (AHI)
Time frame: 3 months
apnea-hypopnea index
Apnea index (AI)
Time frame: 3 months
apnea index
Hypopnea index (HI)
Time frame: 3 months
Hypopnea index
Oxygen disturbance index (ODI)
Time frame: 3 months
Oxygen disturbance index
Lowest oxygen saturation (Lsat)
Time frame: 3 months
Lowest oxygen saturation
Epworth sleepiness score (ESS)
Time frame: 3 months
Epworth sleepiness score measures the level of sleepiness in a participant. Minimum value of 0 to a maximum level of 24, whereby the higher the value, the sleepier the participant.
Abbreviated functional outcomes of sleep questionnaire (FOSQ-10)
Time frame: 3 months
Quality of life survey made of up 10 self rated questions which assess the quality of sleep in participants with sleep disorders. Minimum value is 0 and maximum value is 40, where the lower the global value, the worse off the quality of sleep.
Pittsburgh sleep quality index (PSQI)
Time frame: 3 months
Quality of life survey made up of 19 self rated questions which assesses the quality of 7 different aspects of sleep in participants with sleep disorders. Minimum value is 0 and maximum value is 21, where the higher the global value, the more severe the difficulties in different aspects of sleep.
1 secondary outcome
Predicting future use
Time frame: 3 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Oct 2019.
- Derived from this study: PubMed 32853924Soh L, Han HJ, Yue Y, Tay JY, Hao Y, Toh ST. Evaluation of prefabricated adjustable thermoplastic mandibular advancement devices (PAT-MADs) for obstructive sleep apnea: an Asian experience. Sleep Med. 2020 Nov;75:96-102. doi: 10.1016/j.sleep.2020.02.025. Epub 2020 Mar 7.
- Individual participant dataSharing planned: No
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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. This study is not recruiting at the moment.
Toh Song Tar, MBBS principal investigator
Singapore General Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing mandibular advancement device in people with Obstructive Sleep Apnea, run by Singapore General Hospital at 1 site in Singapore.
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 4 inclusion and 6 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: finished, as of the sponsor's last update on 16 Oct 2019. 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 Singapore. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Apnea-Hypopnea Index (AHI) (time frame: 3 months). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04124978, which also lists 1 linked publication.
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 16 Oct 2019; AzTrials last refreshed its copy on 7 Nov 2026.