Skip to content

Pilot Study of a Self-Supporting Nasopharyngeal Airway in Hypotonia

Pilot Study of Novel Nasopharyngeal Airway Device for Treating Upper Airway Obstruction in Pediatric Hypotonia

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04846400
Acronym
ssNPA
Enrollment
2
Registered
2021-04-15
Start date
2021-09-01
Completion date
2022-08-30
Last updated
2023-12-28

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

Conditions

Child, Only, Hypotonia, Sleep Apnea, Obstructive

Keywords

Obstructive sleep apnea, Hypotonia, Nasal airway, Tolerability

Brief summary

Children with hypotonic upper airway obstruction have a high prevalence of severe obstructive sleep apnea, which if not treated has significant clinical consequence. Available treatment approaches, such as surgery and positive airway pressure, show limited efficacy and adherence. The multidisciplinary team has developed and now proposes to further test a non-surgical, well-tolerated nasopharyngeal airway device that in initial patients has resolved even extremely severe obstructive sleep apnea, and improved patient and family quality of life.

Detailed description

There is a critical need for safe and effective treatment options for persistent obstructive sleep apnea (OSA) in patients with Hypotonic Upper Airway Obstruction (HUAO). HUAO encompass conditions such as cerebral palsy, hypoxic encephalopathy, syndromic tone anomalies, and neuromuscular disorders, and typically share a similar pattern of multisite upper airway collapse. OSA is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep with associated arousals and/ or oxygen desaturations. Of hypotonic patients with symptoms of sleep disordered breathing, one quarter have moderate OSA, and more than half have severe OSA. Thus, not only are patients more likely to have OSA, but it is likely to be much more severe. Currently available treatment options, ranging from palliative care to tracheostomy, often fail to fully meet the needs of these patients. The multidisciplinary team has developed a dramatically effective non-surgical nasopharyngeal airway stent that has demonstrated good tolerability in hypotonic patients. This initial phase will test an enhanced version of the device for acceptability and tolerability. Critically, insertion, adherence, and compliance protocols will be optimized for preparation of the full trial. This record originally included the Secondary Outcome Measure Device Design. This Secondary Outcome Measure was removed during the results reporting process upon advisement of ClinicalTrials.gov reviewers, as it was not a directly health-related outcome.

Interventions

DEVICEssNPA

The ssNPA is a self-supporting nasopharyngeal airway, a stent that is a non-surgical alternative to treat severe OSA

Sponsors

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

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Children with HUAO: This includes those who newly diagnosed with OSA. These children will undergo overnight polysomnography to determine the presence of OSA (AHI\>10 or AHI\>5 with nocturnal hypoxemia defined as SpO2 nadir \<=75%). * Obstructive sleep apnea on polysomnogram with AHI\>=10 * Presence of at least one symptom of OSA (such as snoring 3 or more nights per week, daytime sleepiness, or hyperactive/inattentive behaviors) * Post adeonotonsillectomy or those with contraindications to tonsillectomy. * obstructive sleep apnea on polysomnogram with AHI\>=10 * 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 without hypoxemia or AHI\<5 with hypoxemia - any reason why ssNPA may not be suitable * Any medical reason why ssNPA therapy may not be suitable * Active COVID 19 infections * ETCO2 or 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 tracheobroncomalacia * Need for anticoagulative therapy * Bleeding disorder * Restrictive thoracic disorders

Design outcomes

Primary

MeasureTime frameDescription
Ability to Tolerate Measured by Percent of Participants With Protocol Goal8 weeksProtocol objective was to achieve a score of \>=7 in at least 60% of participants. Score of \>=7 on Likert scale 0-10 (higher score is better).
Comfort as Measured by Percent of Participants With Protocol Objective Score8 weeksProtocol objective was to achieve a score of \>=6 in at least 60% of participants. Score of \>=6 on Likert scale 0-10 (higher score is better).
Ease of Use as Indicated by Percent of Participants Whose Parents Responded Favorably to Device Use, With Protocol Goal8 weeksScore of \>=5 on Likert scale 1-10 (higher score is better).

Secondary

MeasureTime frameDescription
Snoring8 weeksLess frequent snoring, as measured by scores of 1 or 2 on a question that read: While using the device my child's snoring occurred: 1 much less often; 2: less often; 3: unchanged; 4: more often; 5: much more
Insertion Protocol Optimization as Measured by Percent of Participants Who Found Insertion Relatively Easy8 weeksPercent of participants who reported a score of \<= 5 on Likert scale of 1-10, where lower score indicates easier insertion.
Change in Daytime Sleepiness as Shown by Number of Participants Who Had a Reduction in Their Epworth Sleepiness Scale Score8 weeksReduction in Epworth Sleepiness Scale score (0-24; lower score is better);
Sleep Quality, as Measured by Number of Participants With Parent Identified Improved Sleep8 weeksNumber of participants whose parents' response on the sleep quality improvement question were \>=7. Change in sleep quality was reported on a 1-10 scale, where 1 was greatest worsening of sleep and 10 was most improved sleep.

Countries

United States

Participant flow

Participants by arm

ArmCount
ssNPA
self-supporting nasopharyngeal airway to be used nightly for approximately 8 weeks. ssNPA: The ssNPA is a self-supporting nasopharyngeal airway, a stent that is a non-surgical alternative to treat severe OSA
2
Total2

Baseline characteristics

CharacteristicssNPA
Age, Categorical
<=18 years
2 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
2 Participants
Region of Enrollment
United States
2 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 2
other
Total, other adverse events
0 / 2
serious
Total, serious adverse events
0 / 2

Outcome results

Primary

Ability to Tolerate Measured by Percent of Participants With Protocol Goal

Protocol objective was to achieve a score of \>=7 in at least 60% of participants. Score of \>=7 on Likert scale 0-10 (higher score is better).

Time frame: 8 weeks

ArmMeasureValue (NUMBER)
ssNPAAbility to Tolerate Measured by Percent of Participants With Protocol Goal50 percent of participants
Primary

Comfort as Measured by Percent of Participants With Protocol Objective Score

Protocol objective was to achieve a score of \>=6 in at least 60% of participants. Score of \>=6 on Likert scale 0-10 (higher score is better).

Time frame: 8 weeks

ArmMeasureValue (NUMBER)
ssNPAComfort as Measured by Percent of Participants With Protocol Objective Score100 percent of participants
Primary

Ease of Use as Indicated by Percent of Participants Whose Parents Responded Favorably to Device Use, With Protocol Goal

Score of \>=5 on Likert scale 1-10 (higher score is better).

Time frame: 8 weeks

ArmMeasureValue (NUMBER)
ssNPAEase of Use as Indicated by Percent of Participants Whose Parents Responded Favorably to Device Use, With Protocol Goal100 percent of participants
Secondary

Change in Daytime Sleepiness as Shown by Number of Participants Who Had a Reduction in Their Epworth Sleepiness Scale Score

Reduction in Epworth Sleepiness Scale score (0-24; lower score is better);

Time frame: 8 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ssNPAChange in Daytime Sleepiness as Shown by Number of Participants Who Had a Reduction in Their Epworth Sleepiness Scale Score1 Participants
Secondary

Insertion Protocol Optimization as Measured by Percent of Participants Who Found Insertion Relatively Easy

Percent of participants who reported a score of \<= 5 on Likert scale of 1-10, where lower score indicates easier insertion.

Time frame: 8 weeks

ArmMeasureValue (NUMBER)
ssNPAInsertion Protocol Optimization as Measured by Percent of Participants Who Found Insertion Relatively Easy100 percent of participants
Secondary

Sleep Quality, as Measured by Number of Participants With Parent Identified Improved Sleep

Number of participants whose parents' response on the sleep quality improvement question were \>=7. Change in sleep quality was reported on a 1-10 scale, where 1 was greatest worsening of sleep and 10 was most improved sleep.

Time frame: 8 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ssNPASleep Quality, as Measured by Number of Participants With Parent Identified Improved Sleep2 Participants
Secondary

Snoring

Less frequent snoring, as measured by scores of 1 or 2 on a question that read: While using the device my child's snoring occurred: 1 much less often; 2: less often; 3: unchanged; 4: more often; 5: much more

Time frame: 8 weeks

Population: One participant was an inconsistent user of the device, therefore 8 week survey data is not available. Since Clinicaltrials.gov's purpose is not to show individual level results, the results for the consistent user are not shown here.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026