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Self-Supporting Nasopharyngeal Airway (ssNPA) Treating Upper Airway Obstruction in Hypotonia

Self-Supporting Nasopharyngeal Airway (ssNPA) Treating Upper Airway Obstruction in Hypotonia

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05527652
Enrollment
40
Registered
2022-09-02
Start date
2022-11-16
Completion date
2027-08-01
Last updated
2026-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Down Syndrome, Hypertonia, Muscle, Nasal Airway Obstruction, Obstructive Sleep Apnea, Tolerance, Trisomy 21

Keywords

Sleep Apnea Syndromes, Sleep Apnea, Obstructive, Hypertonia, Muscle, Apnea, Respiration Disorders, Respiratory Tract Diseases, Sleep Disorders, Intrinsic, Dyssomnias, Sleep Wake Disorders, Nervous System Diseases, Neuromuscular Manifestations, Neurologic Manifestations

Brief summary

The researchers are investigating if the Self-Supporting Nasopharyngeal Airway (ssNPA) device can be used in the treatment of obstructive sleep apnea in children with Hypotonic Upper Airway Obstruction (HUAO).

Interventions

The ssNPA device is made of a single piece of flexible, medical-grade silicone. It is inserted through one nostril and extends to the anatomic position bypassing the upper airway obstruction above the epiglottis.

Sponsors

University of Michigan
Lead SponsorOTHER
National Institutes of Health (NIH)
CollaboratorNIH
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Masking description

Aggregate and stratified outcomes will be revealed only to the unblinded statisticians with a firewall related to outcomes between statistician and investigators. Dr. Zopf will be blinded to all aggregate/stratified outcomes and Dr. O'Brien will be blinded to polysomnography and quality of life outcomes.

Intervention model description

Eligible patients will be randomized 1:1 to receive (1) immediate therapy with the ssNPA device or (2) a waitlist control group who will receive standard of care (SoC) for the first 8 weeks and then be offered the ssNPA at week 8 for the rest of the study period (till week 16).

Eligibility

Sex/Gender
ALL
Age
3 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Children with Hypotonic Upper Airway Obstruction (HUAO): This includes those who newly diagnosed with obstructive sleep apnea (OSA). These children will undergo overnight polysomnography to determine the presence of OSA (apnea-hypopnea index \[AHI\]\>10 or AHI\>5 with nocturnal hypoxemia defined as oxygen saturation by pulse oximetry \[SpO2\] nadir \<=75%). * All subjects require the presence of at least one symptom of OSA (such as snoring 3 or more nights per week, daytime sleepiness, or hyperactive/inattentive behaviors) * Post adenotonsillectomy or those with contraindications to tonsillectomy. * Tonsil size 2+ or smaller. * Parent/caregivers willing and able to provide informed consent and child willing and able to provide assent, where appropriate.

Exclusion criteria

* AHI ≤10 on polysomnogram (PSG) without hypoxemia or AHI\<5 with hypoxemia. * Any medical reason why Self-Supporting Nasopharyngeal Airway (ssNPA) therapy may not be suitable * Active Coronavirus (COVID) 19 infections * End-tidal carbon dioxide (ETCO2) or Transcutaneous carbon dioxide (TCO2) values \>60 mmHg for \>10% of sleep time on PSG * Psychiatric, medical, or social factors likely to invalidate assessments, make adherence with ssNPA highly unlikely or make local follow-up at 8 weeks unfeasible. Some psychiatric conditions may be provoked or exacerbated by OSA, and those most commonly implicated - Attention Deficit/Hyperactivity Disorder, Conduct Disorder, and Oppositional Defiant Disorder - will not be exclusions. However, more pervasive conditions such as severe autism will be excluded. * Presence of supraglottic airway collapse or more distal airway stenosis or collapse (for example glottic, subglottic stenosis, or concern for distal airway stenosis or malacia) * Moderate/severe tracheobronchomalacia * Need for anticoagulative therapy * Bleeding disorder * Restrictive thoracic disorders

Design outcomes

Primary

MeasureTime frameDescription
Apnea-hypopnea index (AHI)Up to 16 weeksMeasured during the polysomnogram
Self-Supporting Nasopharyngeal Airway (ssNPA) toleranceUp to 16 weeksMeasured by self report. Likert scale 0-5 (higher score is better)

Secondary

MeasureTime frameDescription
Sleep qualityUp to 16 weeksHigher score in parent report of sleep quality on scale 0-5 (higher score is better)
Snoring frequencyUp to 16 weeksAs reported by participant/care taker in survey given daily. Snoring frequency is rated on a Likert scale 1-5 where 5 indicates snoring more frequently.
Daytime sleepinessUp to 16 weeksMeasured using the children's Epworth Sleepiness Scale - The Epworth Sleepiness Scale is a self-administered form with eight items investigating sleep propensity in different real-life situations during the preceding months. Each item can received 0-3 points, thus the final score ranges from 0 (best score) to 24 (worse score).
Quality of life as indicated by the dimensions of the PedsQL (pediatric quality of life) instrument.Up to 16 weeksThere are several dimensions of the PedsQL: Physical Functioning, Emotional Functioning, Social Functioning and School Functioning. Each domain will be scored on a scale of 0 (never have problems) to 4 (almost always have problems) and transformed on a scale of 0-100 by reverse scoring (0=100, 1=75, 2=50, 3=25, 4=0). Psychosocial Health Summary Score is the sum of the items over the number of items answered in the Emotional, Social, and School Functioning scales. Physical Health Summary Score is the Physical Functioning Scale Score. The total quality of life score is the sum of all the items over the number of items answered on all scales.

Countries

United States

Contacts

CONTACTDavid A Zopf, MD
dazopf@wisc.edu608-262-7181
CONTACTLouise M O'Brien, PhD
louiseo@med.umich.edu734-647-9064
PRINCIPAL_INVESTIGATORDavid A Zopf, MD

The University of Wisconsin

PRINCIPAL_INVESTIGATORLouise M O'Brien, PhD

University of Michigan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 20, 2026