NCT05404438

Brief Summary

This study intends to investigate the improvement in patients with OSA through objective measurement, including oxygen desaturation index (ODI) and the percentage reduction in intermittent mouth puffing (IMP) before and after the intervention. The oral appliances are placed between the tongue and the soft palate to reduce the oral ventilation space. A total of 24 participants aged between 36 and 57 years were identified with ODI above 5 events/hour by measuring their blood oxygen and with an originally designed mouth puffing detector to find out those who were still mouth-puffed when their mouths were taped. A suitable appliance was chosen for the participants between the two originally designed oral appliances, tongue pressed device (TPD) and tongue elevated device (TED), and the intervention lasted for six weeks.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 9, 2018

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2022

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

May 16, 2022

Completed
18 days until next milestone

First Posted

Study publicly available on registry

June 3, 2022

Completed
Last Updated

June 3, 2022

Status Verified

September 1, 2018

Enrollment Period

3.4 years

First QC Date

May 16, 2022

Last Update Submit

June 1, 2022

Conditions

Keywords

mouth breathingmouth puffingsleep apneaoral appliance

Outcome Measures

Primary Outcomes (2)

  • Differences in OSA-related variables before and after the six weeks oral device intervention

    According to OSA-related variables, we can analyze participants' ODI (events/hours), mean SpO2 (%), the lowest SpO2(%), and the percentage of total record time with oxygen saturation below 90% (T90) to evaluate their objective sleep quality.

    baseline, six weeks after intervention

  • Differences in percentage of mouth puffing before and after the six weeks oral device intervention

    According to the number of mouth puffing by minutes, mouth puffing signals were divided into four types, including non-mouth puffing (NMP, no or less than 3 times MPSs on both sides), complete mouth puffing (CMP, regularly MPS on both sides, usually above 8-10 times), intermittent mouth puffing (IMP, irregularly MPS in both side, usually between 3-8 times), and side mouth puffing (SMP, showing one-side MPSs) to evaluate the percentage of mouth breathing while sleeping.

    baseline, six weeks after intervention

Study Arms (1)

intervention group

EXPERIMENTAL

single arm study

Other: Oral Appliances

Interventions

A pre-experimental, single-group pretest-posttest design was performed. At stage one, each participant underwent a 2-day general sleeping test and a 2-day sleeping test with mouth tape. At stage two, participants underwent conventional impressions for TPD and TED appliances and were then randomly assigned to wear the TPD or TED; together for two days of sleeping test with their mouth taped. After a 2-day break (washout), with the same procedure, participants wore the other appliance for another 2-day sleeping test and decided accordingly the optimal appliance that had reduced their ODI scores more. At stage three, participants wore their optimal appliance mouth-taped during sleep for 6 weeks. At the end of the intervention, all participants underwent few days sleeping test for final results.

intervention group

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • (1) aged 20-60 years old,
  • (2) having symptoms of OSA including snoring, daytime sleepiness, etc.
  • (3) AHI \& ODI \>=5 events/hour,

You may not qualify if:

  • (1) taken sleep medication within the last two months or were on long-term use,
  • (2) reported tobacco, alcohol, caffeine or drug addiction,
  • (3) cancer, cardiovascular disease, psychiatric illness, kidney disease, diabetes mellitus, or other sleep disorders.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Medicine, and Institute of Brain Science, National Yang-Ming Chiao-Tung University

Taipei, Taiwan

Location

MeSH Terms

Conditions

Mouth BreathingSleep Apnea Syndromes

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract DiseasesSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsApneaSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Cheryl CH Yang, professor

    Institute of Brain Science ,National Yang-Ming University, Taipei City, Taiwan

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 16, 2022

First Posted

June 3, 2022

Study Start

September 9, 2018

Primary Completion

January 31, 2022

Study Completion

January 31, 2022

Last Updated

June 3, 2022

Record last verified: 2018-09

Locations