ClinicalTrials.gg
CompletedNCT03400787Updated Feb 9, 2021Results posted

Latera RCT - Latera vs. Sham Control for Lateral Nasal Valve Collapse

An interventional study of Latera Implant and Sham Procedure in Nasal Valve Collapse and Nasal Breathing, sponsored by Spirox, Inc.. Completed at 11 sites in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-02-09.

Sponsored by Spirox, Inc. (part of Stryker) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
137
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 65 studies in Nasal Obstruction with a site in United States — 9 open to participants now, 11 under way, 1 of them phase 3. Nasal Obstruction · United States.

Enrollment
14th of 56
137 · median 51
Started
2017
with 3 others
No phase
34 of 65
7 open now
Registered
33rd of 65
by date
Lead sponsor
3 of 65
Spirox, Inc.

Among the 65 studies in Nasal Obstruction with a site in United States, this one is the 14th largest by enrollment of the 56 interventional ones that give a count, is one of 4 that started in 2017, is one of 34 with no phase, and was the 33rd registered.

Nasal Obstruction

173 studies on the registry are indexed under Nasal Obstruction; 31 are open to participants now.

Browse Nasal Obstruction studies →

Open to participants now

9 of the 65 studies in Nasal Obstruction with a site in United States are open now. Recruiting first, the newest first:

4 more — sign in →

All 9 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 20 Nasal Obstruction studies recruiting now, 7 (35%) set no upper age limit and 11 (55%) stop at 75 or younger; 4 take children under 18; 4 take healthy volunteers.

This study: 18 Years and older · all sexes · healthy volunteers too.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 65 studies in Nasal Obstruction with a site in United States, or all of them as a file.
02

Study summary

The primary objective of the LATERA RCT is to demonstrate the superiority of the Latera Implant to improve nasal breathing, compared with a Sham Control procedure.

Read the detailed description

To evaluate the Latera Absorbable Nasal Implant (Latera Implant) Implant versus Sham Control in subjects with nasal valve collapse due to or primarily due to insufficient cartilaginous support of the lateral nasal wall.

03

Conditions studied

  • Nasal Valve Collapse
  • Nasal Breathing

Browse trials for

Keywords

  • nasal airway obstruction
  • sham-control
  • Polylactide absorbable implant
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Subjects must meet the following criteria to be included in the study:

  1. Adults aged 18 and above;
  2. Understands and provides written ;
  3. Stated willingness to comply with all study procedures, post-treatment care and availability for the duration of the study follow up of 2 years;
  4. In good general health as evidenced by medical history;
  5. NOSE score ≥55;
  6. Dynamic bi-lateral nasal wall insufficiency as confirmed by Positive Modified Cottle Maneuver;
  7. Nasal and facial anatomy appropriate to receive the Latera Implant;
  8. Documented failure of benefit after at least 4 weeks of conservative medical management, including, for example, antihistamines or nasal , evidenced by lack of efficacy or tolerability.

Subjects meeting any one of the following criteria will be excluded for the study:

  1. Unable to tolerate or not a candidate for procedures performed under local anesthesia;
  2. Pathology other than lateral wall insufficiency (e.g. septal deviation, turbinate or adenoid hypertrophy, polyps, sinusitis, rhinitis) is the primary contributor to airway obstruction;
  3. Requires or is anticipated to require any other concurrent nasal procedures (e.g. Functional Endoscopic Sinus Surgery (FESS), rhinoplasty, sinuplasty, septoplasty, or turbinate reduction) outside of the index procedure within 12 months after the index procedure;
  4. FESS, sinuplasty, septoplasty, inferior turbinate reduction, or rhinoplasty within the past 6 months;
  5. Any other rhinoplasty procedures are planned or planned usage of external dilators within 24 months after the index procedure;
  6. Permanent nasal implant of any type (e.g. autologous, homologous, or synthetic graft) or dilator;
  7. Presence of concomitant inflammatory or infectious conditions or unhealed wounds in the treatment area (e.g., vestibulitis, vasculitis, active acne),
  8. Currently using chronic systemic steroids or recreational intra-nasal drugs;
  9. Currently has cancerous or pre-cancerous nasal lesions, has had radiation in the treatment area, or is currently receiving chemotherapy;
  10. History of a significant healing disorders including hypertrophic scarring, or keloid formation;
  11. Poorly controlled diabetes mellitus;
  12. Known or suspected allergy to PLA or other absorbable implant materials in the Latera Implant;
  13. Severe obstructive sleep apnea (OSA) and cannot or is unwilling to refrain from continuous positive airway pressure (CPAP) for up to 2 weeks post-procedure based on expected healing needs and mask types, in agreement with the treating physician;
  14. Female subjects, of child bearing potential, known or suspected to be pregnant or are lactating;
  15. Any other presenting condition that, in the medical opinion of the investigator, would disqualify the subject from the study.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
137 participants (actual)

Study arms

  • Sham comparator
    Sham Control Arm

    Subjects in the Sham Control arm will undergo the same preoperative assessments as those in the Latera Treatment arm up to and including anesthesia for the implant, however, no implant will be placed. Crossover - Subjects will be unblinded after the 3-month assessment is complete. Eligible subjects in the Sham Control arm will be treated with the Latera Implant if they still meet all eligibility criteria. Follow up will continue to 24 months post-implant. Subjects who no longer meet the eligibility criteria will exit the study.

    Device: Latera Implant

  • Experimental
    Latera Treatment Arm

    Subjects in the active treatment arm will receive the Latera Implant using standard techniques. Follow up continues for 24 months post-implant.

    Device: Sham Procedure

Interventions

  • DeviceLatera Implant

    Treatment with implant

  • DeviceSham Procedure

    Sham procedure where the Latera delivery device is inserted but no implant delivered.

06

What researchers measure

Primary outcomes

  1. NOSE Responder Rate

    The primary endpoint of the study is the NOSE Responder Rate, assessed 3 months post-procedure in the per-protocol population of the Latera and Sham arms. The Nasal Obstruction Symptom Evaluation (NOSE) is a validated patient-reported outcome assessment of 5 questions relating to nasal obstruction (congestion, obstruction, trouble breathing through the nose, trouble sleeping, unable to breath through the nose during exercise/exertion. Each question is rated on a Likert scale of 0 (no problem) to 4 (severe problem). The sum of the scores is multiplied by 5 to result in a total score that ranges from 0 to 100. NOSE scores can also be categorized as mild (5-25), moderate (30-50), severe (55-75), and extreme (80-100). A NOSE responder is defined as a participant with at least 1 NOSE class improvement or at least 20% total NOSE score reduction.

    Time frame: 3 months postprocedure.

Secondary outcomes

  1. Responder Rate

    Responder Rate at 7 days, 30 days, and 6, 12, 18 and 24 months will be assessed

    Time frame: 7 days, 30 days, and 6, 12, 18 and 24 months.

07

Results

Posted Jan 9, 2020

Participant flow

Participant flow — Overall Study
MilestoneSham Control ArmLatera Treatment Arm
Started6671
3-month follow-up6463
Completed6463
Not completed28
Withdrew: Lost to follow-up10
Withdrew: Death10
Withdrew: Protocol violation02
Withdrew: Unblinded before 3-month follow-upa-06

Outcome measures

PrimaryNOSE Responder Rate

The primary endpoint of the study is the NOSE Responder Rate, assessed 3 months post-procedure in the per-protocol population of the Latera and Sham arms. The Nasal Obstruction Symptom Evaluation (NOSE) is a validated patient-reported outcome assessment of 5 questions relating to nasal obstruction (congestion, obstruction, trouble breathing through the nose, trouble sleeping, unable to breath through the nose during exercise/exertion. Each question is rated on a Likert scale of 0 (no problem) to 4 (severe problem). The sum of the scores is multiplied by 5 to result in a total score that ranges from 0 to 100. NOSE scores can also be categorized as mild (5-25), moderate (30-50), severe (55-75), and extreme (80-100). A NOSE responder is defined as a participant with at least 1 NOSE class improvement or at least 20% total NOSE score reduction.

Time frame:
3 months postprocedure.
Reported as:
Count of participants · Participants
NOSE Responder Rate
ParticipantsSham Control ArmLatera Treatment Arm
NOSE Responder Rate3552
Statistical analysis
  • Sham Control Arm vs Latera Treatment Arm · t-test, 1 sided · p = 0.0001 (p\<0.025 indicates statistical significance.)
SecondaryResponder Rate

Responder Rate at 7 days, 30 days, and 6, 12, 18 and 24 months will be assessed

Time frame:
7 days, 30 days, and 6, 12, 18 and 24 months.

Results for this outcome have not been posted.

Adverse events

Collected over Adverse events reported from procedure through 3-month follow-up.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Sham Control Arm1/64 (1.6%)2/64 (3.1%)0/64 (0%)
Latera Treatment Arm0/63 (0%)3/63 (4.8%)5/63 (7.9%)
Most frequent serious events
Most frequent serious events
EventSham Control ArmLatera Treatment Arm
Liver cancerHepatobiliary disorders0/641/63
Degenerative disc disease/stenosisMusculoskeletal and connective tissue disorders0/641/63
Severe hypertensionGeneral disorders0/641/63
DeathGeneral disorders1/640/63
Orthopedic surgeryMusculoskeletal and connective tissue disorders1/640/63
Most frequent other events
Most frequent other events
EventSham Control ArmLatera Treatment Arm
Implant extrusion/migrationProduct Issues0/645/63

Baseline characteristics

Participants with evaluable data for the primary endpoint at 3-month follow-up

Age, Continuous
Age, Continuous(years)Sham Control ArmLatera Treatment ArmTotal
Mean51.3 ± 13.550.9 ± 14.251.1 ± 13.8
Sex: Female, Male
Sex: Female, Male(Participants)Sham Control ArmLatera Treatment ArmTotal
Female403777
Male242650
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Sham Control ArmLatera Treatment ArmTotal
American Indian or Alaska Native112
Asian527
Native Hawaiian or Other Pacific Islander000
Black or African American101
White5158109
More than one race426
Unknown or Not Reported202
Region of Enrollment
Region of Enrollment(participants)Sham Control ArmLatera Treatment ArmTotal
United States6463127
Baseline Nasal Obstruction Symptom Evaluation (NOSE) Score
Baseline Nasal Obstruction Symptom Evaluation (NOSE) Score(units on a scale)Sham Control ArmLatera Treatment ArmTotal
Mean77.7 ± 15.177.4 ± 13.177.6 ± 14.1
08

Study locations

11 sites
  • Sacramento ENT
    Roseville, California 95661, United States
  • Breathe Clear Institute
    Torrance, California 90503, United States
  • ENT of GA
    Atlanta, Georgia 30342, United States
  • Chicago Nasal and Sinus Center
    Chicago, Illinois 60602, United States
  • Michiana Sleep and ENT Solutions
    South Bend, Indiana 46635, United States
  • Albany ENT & Allergy
    Albany, New York 12206, United States
  • Piedmont ENT
    Winston-Salem, North Carolina 27103, United States
  • Texas ENT Specialist
    Houston, Texas 77094, United States
  • ENT Associates of Texas
    McKinney, Texas 78209, United States
  • Texas Facial Plastics and ENT
    San Antonio, Texas 78239, United States
  • Ogden Clinic
    Ogden, Utah 84403, United States
09

References and documents

Publications

  • Stolovitzky P, Senior B, Ow RA, Mehendale N, Bikhazi N, Sidle DM. Assessment of bioabsorbable implant treatment for nasal valve collapse compared to a sham group: a randomized control trial. Int Forum Allergy Rhinol. 2019 Aug;9(8):850-856. doi: 10.1002/alr.22362. Epub 2019 Jun 21. PubMed 31226238 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2017 to primary completion in Feb 2019, 14 months.

Results were first posted in Jan 2020, 11 months after primary completion.

Of 60 interventional studies with no phase under Nasal Obstruction, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 36. This study's 14 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 3, 2018
First posted
Jan 17, 2018
StartActual
Nov 28, 2017
Primary completionActual
Feb 1, 2019
CompletionActual
Dec 23, 2020
Results first posted
Jan 9, 2020
Last update
Feb 9, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 9, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03400787
Lead sponsor
Spirox, Inc.
Collaborators
New Arch Consulting
Responsible party
Sponsor
First posted
Jan 17, 2018
Start date
Nov 28, 2017
Primary completion
Feb 1, 2019
Completion
Dec 23, 2020
Results posted
Jan 9, 2020
Last update
Feb 9, 2021

Study contacts

Pablo Stolovitzky, MD
principal investigator · ENT of Georgia
Douglas Sidle, MD
principal investigator · Northwestern Facial Plastic Surgery

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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