Prospective Evaluation of a New Palatal Implant for Treatment of Snoring and Obstructive Sleep Apnea (OSAS)

Not Applicable

Completed

• Conditions: Reduction of Initial AHI; Reduction of Initial Snoaring Index
• Interventions: Device: The IMD is a resilient palatal implant which is introduced through a stab incision into the palate.

• Registration Number: NCT02094482
• Lead Sponsor: Medartis AG

Brief Summary

Prospective Evaluation of a New Palatal Implant for Treatment of Snoring and Obstructive Sleep Apnea (OSAS)

Detailed Description

The new OSAS Implant is intended for use in the palate (hard and soft palate/ see picture above) in order to stiffen and stabilize the soft palate, which may reduce the severity of airway obstructions and of snoring in patients suffering from OSA (Obstructive Sleep Apnea). Indications for use of the System include: symptomatic, habitual, social snoring due to palatal flutter or upper airway obstruction primarily caused by the retropalatal obstruction. The System is labeled for use by physicians only.

The primary endpoint is the Apnea-Hypopnea-Index (AHI) in the 90 days follow-up.

Study hypothesis: Reduction of initial AHI ≥20%

Study Timeline

• Study First Submitted: 2014-03-20
• Study First Submitted QC: 2014-03-20
• Study First Posted: 2014-03-21
• Study Start: 2014-04
• Primary Completion: 2020-07
• Study Completion: 2020-10
• Status Verified: 2021-09
• Last Update Submitted: 2021-09-06
• Last Update Posted: 2021-09-13

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 29

Inclusion Criteria

Study patients must meet all of the following inclusion criteria:

• Socially disturbing snoring with/without obstructive sleep apnea syndrome
• Predominantly retropalatal obstructions established by ApneaGraph ≥60%, sleep nasendoscopy or successful application of the Velumount palatal device
• Findings for predominantly retropalatal obstructions in ENT-examination:
• No tonsils or tonsils grade I - II
• Normal finding of larynx and tongue base
• No lingual tonsil hypertrophy
• ASA (American Society of Anaesthesiology, 1963) criteria I or II
• Body mass index (BMI) < 33 kg/m2
• Age > 18 yrs
• Fix bed partner
• Ability to read and understand the patient's information

Exclusion Criteria

• Previous Pillar implants
• Previous airway surgery other than nasal, adenoid, tonsil or UPPP
• Presence of other sleep disorders
• Psychiatric disorders
• Neurological disorders (e.g. Cerebrovascular injury)
• Dysmorphia of the cranial skeleton
• Pregnancy or breastfeeding
• Known hypersensitivity to nitinol
• Participation in another clinical study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
OSAS Palatal Implant	The IMD is a resilient palatal implant which is introduced through a stab incision into the palate.	The IMD is a resilient palatal implant which is introduced through a stab incision into the palate. Two implants are placed underneath the rostral part of the palatal bone and continue into the upper part of the soft palate .

Primary Outcome Measures

Name	Time	Method
Reduction of initial AHI by ≥20%	90days	The primary endpoint is the Apnea-Hypopnea-Index (AHI) at the 90 days follow-up.; Study hypothesis: Reduction of initial AHI ≥20%. AHI is measured using cardio-respiratory polygraphy. Two measurements are performed before treatment and at 90 days follow-up in order to reduce effects from night-to-night variability.

Secondary Outcome Measures

Name	Time	Method
Reduction of initial snoring index ≥30%	90days	Endpoint snoring is measured on a continuous Visual Analog Scale (VAS) by the bed partner.; Study hypothesis: Reduction of initial snoring index ≥30%

Trial Locations

Locations (1)

Kantonsspital Liestal; 🇨🇭 Basel, Baselland, Switzerland