ClinicalTrials.gg
RecruitingNCT03947424Updated Sep 1, 2023

Clinical Tial of Er:YAG Laser Snoring Treatment

An interventional study of LP Er:YAG and SMOOTH mode Er:YAG in Snoring, sponsored by Luis Monteiro. Recruiting at 1 site in Portugal. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-09-01.

Sponsored by Luis Monteiro · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2023, 2 years 11 months ago, but the record still lists the study as recruiting.
  • Registered 11 months after the study started (first participant enrolled Jun 2018, registered May 2019).
  • Started Jun 2018; still recruiting 8 years 5 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
75
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Two modes of laser (Er:YAG) treatment for snoring will be compared with sham treatment in a randomized clinical trial.

Read the detailed description

The aim of this study is to evaluate the clinical outcome of snoring treatment using non-ablative Er:YAG laser in comparison with sham laser treatment. Furthermore, to different modes of Er:YAG laser will be compared; a long-pulse mode (LP) and proprietary SMOOTH mode (Fotona, Slovenia).

02

Conditions studied

  • Snoring

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Keywords

  • laser
  • Er:YAG
  • NightLase
  • Fotona SMOOTH
03

In context

Snoring

122 studies on the registry are indexed under Snoring; 15 are open to participants now.

This study's planned enrollment of 75 is above the median of 43 across 95 interventional studies indexed under Snoring.

Browse Snoring studies →

Lead sponsor

Luis Monteiro is the lead sponsor of 2 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Signed form
  • Diagnosis of snoring/apnea including partner information
  • Age greater than 18 years.
  • Apnea-Hypopnea index (AHI) less than 30.
  • No significant nasal stenosis.
  • Bed partner present

Exclusion criteria

Exclusion Criteria:

  • People who refuse to participate in the study
  • Presence of concomitant disorders and/or diseases
  • Infections in the throat
  • current use of photosensitive drugs
  • pregnancy
  • scarring in the throat
  • acute pollen allergies
  • epilepsy
  • People starting with an extreme diet or weight loss plan
  • Patients who do not want to follow post treatment recommendation concerning food and drinks intake
  • Larynx obstruction (floppy epiglottis)
  • Oropharynx obstruction caused by palatine tonsils (>50%).
Terms in these criteria, in plain language(1)

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.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
75 participants (estimated)

Study arms

  • Experimental
    Experimental 1

    Long-pulse (LP) Er:YAG laser snoring treatment.

    Device: LP Er:YAG

  • Experimental
    Experimental 2

    Fotona SMOOTH mode Er:YAG laser snoring treatment.

    Device: SMOOTH mode Er:YAG

  • Sham comparator
    Control

    Sham laser snoring treatment with no energy applied.

    Device: sham

Interventions

  • DeviceLP Er:YAG

    LP Er:YAG applied to oral mucosa

    Also known as: long-pulsed erbium YAG laser, LP NightLase

  • DeviceSMOOTH mode Er:YAG

    SMOOTH mode Er:YAG applied to oral mucosa

    Also known as: SMOOTH mode erbium YAG laser, SMOOTH mode NightLase

  • Devicesham

    Er:YAG laser applied to oral mucosa with no energy

    Also known as: placebo

06

What researchers measure

Primary outcomes

  1. NightLase Snoring Questionnaire-Question 1: Snoring severity change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 6 months

Secondary outcomes

  1. Change from baseline in snoring value

    Snorelab software used to record snoring

    Time frame: 1 month

  2. Change from baseline in snoring value

    Snorelab software used to record snoring

    Time frame: 3 months

  3. Change from baseline in snoring value

    Snorelab software used to record snoring

    Time frame: 12 months

  4. Change from baseline in snoring value

    Snorelab software used to record snoring

    Time frame: 6 months

  5. NightLase Snoring Questionnaire-Question 1: Snoring severity change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 3 months

  6. NightLase Snoring Questionnaire-Question 1: Snoring severity change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 12 months

  7. NightLase Snoring Questionnaire-Question 1: Snoring severity change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 1 month

  8. NightLase Snoring Questionnaire change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 1 month

  9. NightLase Snoring Questionnaire change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 3 months

  10. NightLase Snoring Questionnaire change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 6 months

  11. NightLase Snoring Questionnaire change from baseline

    This questionnaire consists of eight questions, assessing the severity of snoring (the first question) and other problems associated with sleep-disordered breathing (questions 2-8). Answers will be graded on 11-point scales (0-10) .

    Time frame: 12 months

  12. Change in EpWorth somnolence scale from baseline

    The level of daytime sleepiness in the patients was assessed using the 24-point Epworth scale. Values 0-10 are considered normal, and values 11-24 represent increasing levels of 'excessive daytime sleepiness'.

    Time frame: 1 month

  13. Change in EpWorth somnolence scale from baseline

    The level of daytime sleepiness in the patients was assessed using the 24-point Epworth scale. Values 0-10 are considered normal, and values 11-24 represent increasing levels of 'excessive daytime sleepiness'.

    Time frame: 3 months

  14. Change in EpWorth somnolence scale from baseline

    The level of daytime sleepiness in the patients was assessed using the 24-point Epworth scale. Values 0-10 are considered normal, and values 11-24 represent increasing levels of 'excessive daytime sleepiness'.

    Time frame: 6 months

  15. Change in EpWorth somnolence scale from baseline

    The level of daytime sleepiness in the patients was assessed using the 24-point Epworth scale. Values 0-10 are considered normal, and values 11-24 represent increasing levels of 'excessive daytime sleepiness'.

    Time frame: 12 months

  16. Change in Quality of life Questionnaire score from baseline

    Oral Health Impact Profile-14 on the scale from 0 to 56 with higher scores indicating a poorer oral health-related quality of life.

    Time frame: 1 month

  17. Change in Quality of life Questionnaire score from baseline

    Oral Health Impact Profile-14 on the scale from 0 to 56 with higher scores indicating a poorer oral health-related quality of life.

    Time frame: 3 months

  18. Change in Quality of life Questionnaire score from baseline

    Oral Health Impact Profile-14 on the scale from 0 to 56 with higher scores indicating a poorer oral health-related quality of life.

    Time frame: 6 months

  19. Change in Quality of life Questionnaire score from baseline

    Oral Health Impact Profile-14 on the scale from 0 to 56 with higher scores indicating a poorer oral health-related quality of life.

    Time frame: 12 months

  20. Change in Apnea - Hypopnea Index (AHI) from baseline.

    Measured by polysomnography.

    Time frame: 3 months

  21. Change in O2 saturation (%) from baseline.

    Measured by polysomnography.

    Time frame: 3 months

  22. Change in snoring time (mean duration of episode in s) from baseline.

    Measured by polysomnography.

    Time frame: 3 months

  23. Change in percentage snoring time of total sleep time (%) from baseline.

    Measured by polysomnography.

    Time frame: 3 months

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03947424
Lead sponsor
Luis Monteiro
Responsible party
Luis Monteiro (DMD, Phd, Auxiliar Professor at the IUCS in Periodontal Surgical Clinic, Oral Pathology and Biopathology, Cooperativa de Ensino Superior, Politécnico e Universitário) — Sponsor-investigator
First posted
May 13, 2019
Start date
Jun 1, 2018
Primary completion
Dec 1, 2023 (estimated)
Completion
May 1, 2024 (estimated)
Last update
Sep 1, 2023

Study contacts

Luis Monteiro, DMD, PhD
Contact
luis.monteiro@iucs.cespu.pt
+351 919120226
Luis Monteiro, DMD, PhD
principal investigator · Instituto Universitário de Ciências da Saude, CESPU

Oversight

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

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