NCT00477009

Brief Summary

The purpose of this study is to evaluate effects from a mandibular repositioning appliance on obstructive sleep apneas, symptoms, blood pressure and markers of stress, inflammation and cardiovascular health in patients with mild to moderate obstructive sleep apnea/hypopnea syndrome and in patients with symptomatic snoring.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
96

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2007

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2007

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

May 21, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

May 22, 2007

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2011

Completed
Last Updated

January 18, 2013

Status Verified

January 1, 2013

Enrollment Period

4.6 years

First QC Date

May 21, 2007

Last Update Submit

January 17, 2013

Conditions

Keywords

Sleep apnea syndromesSnoringMandibular advancementActivator appliancesDisorders of excessive somnolenceBlood pressureInflammationOxidative stressHormonesMarkers of Metabolic Syndrome X

Outcome Measures

Primary Outcomes (3)

  • Sleep apnea and sleep measured by polysomnography

    Baseline and after 4 months

  • Daytime sleepiness and sleep apnea symptoms assessed in questionnaires and objective testing

    Baseline and after 4 months

  • Quality of life

    Baseline and after 4 months

Secondary Outcomes (8)

  • Headaches

    Baseline and after 4 months

  • Blood pressure

    Baseline and after 4 months

  • Vigilance

    Baseline and after 4 months

  • Markers of stress

    Baseline and after 4 months

  • Markers of inflammation

    Baseline and after 4 months

  • +3 more secondary outcomes

Study Arms (2)

1

EXPERIMENTAL

Adjustable mandibular repositioning appliance

Device: Mandibular repositioning appliance, adjustable

2

PLACEBO COMPARATOR

Placebo device in upper jaw

Device: Mandibular repositioning appliance, adjustable

Interventions

Comparison between mandibular repositioning appliance for nightly use and a placebo device regarding effects on sleep apneas and daytime symptoms as well as blood pressure and markers of oxidative stress and sleepiness.

Also known as: Herbst appliance
12

Eligibility Criteria

Age20 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Obstructive sleep apnea, apnea-hypopnea index of \<30 with excessive daytime sleepiness
  • Snoring with excessive daytime sleepiness, apnea-hypopnea index of \<5
  • Body mass index of \<35

You may not qualify if:

  • Unable to give informed consent
  • Psychiatric disorders including dementia that may interfere with the study protocol
  • Other concomitant diseases that demand acute, effective treatment of sleep apnea
  • Pharyngeal soft tissue abnormalities
  • Living to far away from the University Hospital
  • Professional drivers
  • Pregnancy
  • Included in other studies
  • Other sleep apnea treatments
  • Severe craniomandibular disorders
  • Acute or advanced periodontal disease
  • Insufficient number of teeth

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Depts of Respiratory Medicine and Orthodontics, Umeå University

Umeå, SE-906 51, Sweden

Location

Related Publications (4)

  • Marklund M, Stenlund H, Franklin KA. Mandibular advancement devices in 630 men and women with obstructive sleep apnea and snoring: tolerability and predictors of treatment success. Chest. 2004 Apr;125(4):1270-8. doi: 10.1378/chest.125.4.1270.

    PMID: 15078734BACKGROUND
  • Lim J, Lasserson TJ, Fleetham J, Wright J. Oral appliances for obstructive sleep apnoea. Cochrane Database Syst Rev. 2006 Jan 25;2006(1):CD004435. doi: 10.1002/14651858.CD004435.pub3.

    PMID: 16437488BACKGROUND
  • Rietz H, Franklin KA, Carlberg B, Sahlin C, Marklund M. Nocturnal Blood Pressure Is Reduced by a Mandibular Advancement Device for Sleep Apnea in Women: Findings From Secondary Analyses of a Randomized Trial. J Am Heart Assoc. 2018 Jun 21;7(13):e008642. doi: 10.1161/JAHA.118.008642.

  • Marklund M, Carlberg B, Forsgren L, Olsson T, Stenlund H, Franklin KA. Oral Appliance Therapy in Patients With Daytime Sleepiness and Snoring or Mild to Moderate Sleep Apnea: A Randomized Clinical Trial. JAMA Intern Med. 2015 Aug;175(8):1278-85. doi: 10.1001/jamainternmed.2015.2051.

MeSH Terms

Conditions

Sleep Apnea SyndromesSnoringDisorders of Excessive SomnolenceInflammation

Interventions

Orthodontic Appliances, Functional

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesRespiratory SoundsSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsMental DisordersPathologic Processes

Intervention Hierarchy (Ancestors)

Orthodontic AppliancesOrthodonticsDentistry

Study Officials

  • Marie Marklund

    Umeå University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor

Study Record Dates

First Submitted

May 21, 2007

First Posted

May 22, 2007

Study Start

May 1, 2007

Primary Completion

December 1, 2011

Study Completion

December 1, 2011

Last Updated

January 18, 2013

Record last verified: 2013-01

Locations