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CompletedNCT02188589Updated Mar 26, 2019Results posted

Evaluation of an Absorbable Implant for the Treatment of Nasal Valve Collapse

An interventional study of INEX nasal implant in Nasal Valve Collapse, sponsored by Spirox, Inc.. Completed at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-03-26.

Sponsored by Spirox, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

To evaluate the safety and feasibility of the INEX Nasal Implant in subjects with moderate to severe nasal valve collapse.

Read the detailed description

This study is a multicenter, nonrandomized, prospective exploratory study of the INEX Nasal Implant. The purpose of this study is to evaluate the safety and feasibility of the INEX Nasal Implant in subjects with moderate to severe nasal valve collapse.

02

Conditions studied

  • Nasal Valve Collapse

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03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Eligible participants are:

  1. Adult patients seeking treatment for nasal obstruction on one or both sides of the nose who are willing to undergo an office-based or intraoperative nasal implant procedure in lieu of alternative treatments (ie, surgical repair or use of an external dilator).
  2. Nasal valve collapse (NVC) must be a primary or significant contributor to the subject's nasal obstruction based on clinical presentation, physical examination and nasal endoscopy.
  3. Baseline Nasal Obstruction Symptom Evaluation (NOSE) score must be ≥55.

Participants are excluded for the following:

  1. Surgical or non-surgical treatment of the nasal valve or rhinoplasty within 12 months before enrollment.
  2. Septoplasty, inferior turbinate reduction, or other surgical nasal procedures within 6 months before enrollment.
  3. Recurrent nasal infections.
  4. Use of intranasal steroids within 2 weeks preimplant and 2 weeks post implantation.
  5. Presence of a permanent implant, dilator, or uses an external device in the nasal area.
  6. Cancerous or precancerous lesions and/or radiation exposure in the treatment area or chemotherapy within 24 months of the study.
  7. Significant bleeding disorders.
  8. Significant systemic diseases.
  9. Currently using nasal oxygen or continuous positive airway pressure (CPAP).
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    Nasal implant group

    Bilateral or unilateral INEX nasal implants

    Device: INEX nasal implant

Interventions

  • DeviceINEX nasal implant

    Treatment group may receive unilateral or bilateral INEX nasal implants (maximum of 4, 2 per side)

05

What researchers measure

Primary outcomes

  1. Implant-related Adverse Events

    Implant-related adverse events (such as implant retrievals, procedure-related hematoma/inflammation)

    Time frame: 6 months

Secondary outcomes

  1. Breathing Capacity (NOSE Scores)

    Nasal breathing capacity was assessed using the validated Nasal Obstruction Symptom Evaluation (NOSE) questionnaire. The NOSE score uses a 0-100 point scale to capture severity of nasal symptoms (congestion, obstruction, trouble breathing, sleeping, and exercise), with higher scores indicating more severe symptoms than lower scores. NOSE severity classes are defined as Mild (5-25), Moderate (30-50), Severe (55-75), and Extreme (80-100).

    Time frame: At baseline and at 6, 12, and 24 months post implant

  2. NOSE Responder Rate

    Percent of participants meeting responder criteria. Responders are defined as participants with a reduction from baseline in 1 or more Nasal Obstruction Symptom Evaluation Score (NOSE) severity class or a 20% reduction in the NOSE score.

    Time frame: At 6, 12, and 24 months post implant

06

Results

Posted Oct 10, 2016

Participant flow

Participant flow — Overall Study
MilestoneTreatment Group
Started30
6 months30
12 months30
24 months25
Completed25
Not completed5
Withdrew: Withdrawal by subject5

Outcome measures

PrimaryImplant-related Adverse Events

Implant-related adverse events (such as implant retrievals, procedure-related hematoma/inflammation)

Time frame:
6 months
Reported as:
Number · participants
Implant-related Adverse Events
participantsTreatment Group
Implant-related Adverse Events5
SecondaryBreathing Capacity (NOSE Scores)

Nasal breathing capacity was assessed using the validated Nasal Obstruction Symptom Evaluation (NOSE) questionnaire. The NOSE score uses a 0-100 point scale to capture severity of nasal symptoms (congestion, obstruction, trouble breathing, sleeping, and exercise), with higher scores indicating more severe symptoms than lower scores. NOSE severity classes are defined as Mild (5-25), Moderate (30-50), Severe (55-75), and Extreme (80-100).

Time frame:
At baseline and at 6, 12, and 24 months post implant
Reported as:
Mean · scores on a scale
Breathing Capacity (NOSE Scores)
scores on a scaleTreatment Group
Baseline76.7 ± 14.8
6 Months33.3 ± 29.7
12 Months35.2 ± 29.2
24 Months32.0 ± 29.3
Statistical analysis
  • Treatment Group · t-test, 2 sided · p = <0.001
SecondaryNOSE Responder Rate

Percent of participants meeting responder criteria. Responders are defined as participants with a reduction from baseline in 1 or more Nasal Obstruction Symptom Evaluation Score (NOSE) severity class or a 20% reduction in the NOSE score.

Time frame:
At 6, 12, and 24 months post implant
Reported as:
Number · percentage of responders
NOSE Responder Rate
percentage of respondersNasal Implant Group
6 Months80.0
12 Months76.7
24 Months80.0

Adverse events

Collected over Through 24 months post implant. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Treatment Group0/30 (0%)5/30 (16.7%)10/30 (33.3%)
Most frequent serious events
Most frequent serious events
EventTreatment Group
Nonsurgical implant retrievalInvestigations3/30
Hernia Repair ProcedureSurgical and medical procedures1/30
BronchitisRespiratory, thoracic and mediastinal disorders1/30
Most frequent other events
Most frequent other events
EventTreatment Group
RhinitisGeneral disorders3/30
RhinorrheaGeneral disorders2/30
HematomaSkin and subcutaneous tissue disorders1/30
InflammationSkin and subcutaneous tissue disorders1/30
Acute hypertensionVascular disorders1/30
Injury by fallen treeSocial circumstances1/30
VertigoGeneral disorders1/30
HeadacheGeneral disorders1/30
Normal Bleeding EpistaxisBlood and lymphatic system disorders1/30

Baseline characteristics

Age, Continuous
Age, Continuous(years)Treatment Group
Mean51.1 ± 14.5
Sex: Female, Male
Sex: Female, Male(Participants)Treatment Group
Female12
Male18
07

Study locations

1 site
  • Klinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde am Klinikum der LMU
    Munich, 81377, Germany
08

References and documents

Publications

  • Stewart MG, Witsell DL, Smith TL, Weaver EM, Yueh B, Hannley MT. Development and validation of the Nasal Obstruction Symptom Evaluation (NOSE) scale. Otolaryngol Head Neck Surg. 2004 Feb;130(2):157-63. doi: 10.1016/j.otohns.2003.09.016. PubMed 14990910 ↗
  • San Nicolo M, Stelter K, Sadick H, Bas M, Berghaus A. Absorbable Implant to Treat Nasal Valve Collapse. Facial Plast Surg. 2017 Apr;33(2):233-240. doi: 10.1055/s-0037-1598655. Epub 2017 Apr 7. Erratum In: Facial Plast Surg. 2017 Jun;33(3):353-354. doi: 10.1055/s-0037-1603201. PubMed 28388804 ↗
  • San Nicolo M, Stelter K, Sadick H, Bas M, Berghaus A. A 2-Year Follow-up Study of an Absorbable Implant to Treat Nasal Valve Collapse. Facial Plast Surg. 2018 Oct;34(5):545-550. doi: 10.1055/s-0038-1672213. Epub 2018 Sep 18. PubMed 30227454 ↗

Individual participant data

Plan to share: No

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Registry details

Key details

Study ID
NCT02188589
Lead sponsor
Spirox, Inc.
Responsible party
Sponsor
First posted
Jul 11, 2014
Start date
Apr 2014
Primary completion
Dec 2015
Completion
Jun 2017
Results posted
Oct 10, 2016
Last update
Mar 26, 2019

Study contacts

Alexander Berghaus, MD
principal investigator · Ludwig-Maximilians - University of Munich

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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