Polysomnographic Titration of Non-invasive Ventilation in Motor Neurone Disease (3TLA)
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ClinicalTrials.gov Identifier: NCT05136222 |
Recruitment Status :
Recruiting
First Posted : November 29, 2021
Last Update Posted : June 23, 2022
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Condition or disease | Intervention/treatment | Phase |
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Motor Neuron Disease / Amyotrophic Lateral Sclerosis | Other: Intervention polysomnography Other: Sham polysomnography | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 244 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomised controlled trial with 12 month cohort follow-up |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Masking Description: | The attending sleep scientist will refer to a database that reveals (statistician-generated) participant's treatment allocation. The sleep scientist will not reveal the treatment allocation to the Clinical team, Research team or the participant. Centralised allocation concealment will be ensured through the Adept/REDCap trial database. |
Primary Purpose: | Treatment |
Official Title: | A Multi-centre Randomised Controlled Trial of Polysomnographic Titration of Non-invasive Ventilation in Motor Neurone Disease (PSG4NIVinMND; 3, Three Letter Acronyms [3TLA]) |
Actual Study Start Date : | December 15, 2021 |
Estimated Primary Completion Date : | February 28, 2026 |
Estimated Study Completion Date : | February 28, 2028 |

Arm | Intervention/treatment |
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Experimental: Intervention
This trial of PSG-assisted commencement of non-invasive ventilation (NIV) in motor neurone disease (MND) follows the methodology of our previous single-site study (Hannan et al 2019 ERJ), with the addition of an open label cohort that extends until (the earlier of) 12 months or death. After empirical NIV set-up and an acclimatisation period (3 weeks), participants will undergo single night in-laboratory polysomnography (PSG). The PSG will be performed and supervised by a sleep scientist. In the intervention group, the "intervention" PSG results will be used to adjust/titrate NIV settings to optimize ventilation and improve synchrony between the patient and the NIV device. Participants will be asked to continue to use NIV as prescribed for the subsequent 7 week intervention period. |
Other: Intervention polysomnography
Please refer to 'Arms: Intervention' section. |
Placebo Comparator: Control
The participants allocated to the control group will also be asked to attend a single night in-laboratory PSG. The NIV settings will not be adjusted throughout the PSG ("sham" PSG). Participants in the control group will retain their original settings after the sham PSG, and will be asked to continue to use NIV in this manner for the subsequent 7 week intervention period.
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Other: Sham polysomnography
Please refer to 'Arms: Control' section. |
- Adherence with NIV [ Time Frame: Change during the acclimatization period (~3 weeks) and during the NIV treatment period (~7-8 weeks) (approx. 10 weeks total per participant). ]Defined as using NIV > 4 hours/day during the NIV treatment period.
- Intolerance of NIV [ Time Frame: Change during the acclimatization period (~ 3 weeks) and during the NIV treatment period (~7-8 weeks) (approx. 10 weeks total per participant). ]Defined as cessation of NIV during the NIV treatment period and/or < 4 hours.
- Respiratory function [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement as able. ]Forced expiratory volume in 1 second [FEV1], forced vital capacity [FVC]
- Maximal inspiratory/expiratory pressure [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement as able. ]'MIPs/MEPs'.
- Sniff nasal pressure [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement as able. ]'SNIP'.
- Arousal index (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Defined as the number of electroencephalogram (EEG) arousals observed per hour of total sleep time (TST).
- Asynchrony index (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Defined as the number of asynchrony events per hour of sleep.
- Oxygen indices (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Multiple measures to summarise oxygenation as one single outcome including oxygen desaturation index (defined as the total number of oxygen desaturation episodes [= 4%] per hour of total), sleep time, nadir SpO2, and time with SpO2 < 90%, area under the curve and others.
- Total sleep time (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Total amount of time asleep in minutes.
- % rapid eye movement (REM) sleep (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Percentage of sleep characterised by eye movement, relaxation of the body, faster. respiration, and increased brain activity
- % slow wave sleep (SWS) (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Percentage of 'deep sleep'.
- Asynchrony sub-indices (during polysomnography) [ Time Frame: During the baseline (following the ~3 week acclimatisation period) and during the follow-up assessment (~ week 3 + 7). Cohort: Not Collected. ]Ineffective efforts, double-trigger etc.
- Dyspnoea Amyotrophic Lateral Sclerosis (DALS-15) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of breathlessness in people with ALS/MND.
- Health-related quality of life - Severe Respiratory Insufficient Questionnaire (SRI) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of health-related quality of life.
- Health-related quality of life - Assessment of Quality of Life (8-Dimension-AQoL) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of health-related quality of life.
- Health-related quality of life - Calgary Sleep Apnoea Quality of Life Index (SAQLI) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of health-related quality of life.
- Functional rating - Amyotrophic Lateral Sclerosis Functional Rating Scale (Revised) (ALSFRS) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A clinical measure of functional rating in people with ALS/MND. Minimum score: 0, maximum score: 40. The higher the score the more function is retained.
- Sleep quality - Pittsburgh Sleep Quality Index (PSQI) [ Time Frame: RCT: During the baseline and during the follow-up assessment. Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of sleep quality.
- Daytime somnolence - Epworth Sleepiness Scale (ESS) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of daytime sleepiness.
- Daytime somnolence - Karolinska Sleepiness Scales (KSS) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]The KSS is rating of the current daytime sleepiness state using a 9-point scale (1 = very alert to 9 = very sleepy, fighting sleep).
- Carer burden - Caregiver Burden Scale (CBS) [ Time Frame: During the baseline (~week 0) and during the follow-up assessment (~ week 3 + 7). Cohort: At 3, 6 and 12 months following RCT commencement. ]A measure of caregiver burden. Rated ona scale from 0 (never) to 4 (nearly always), with higher scores indicating greater carer burden.
- Cost effectiveness of the intervention [ Time Frame: Throughout the trial period (approx. 5 years) (retrospective analysis). ]Economic evaluation using MBS/PBS data.
- Usual clinical care practices [ Time Frame: At trial commencement and trial end. ]Multidisciplinary clinician surveys at each recruitment site.
- Usual care and the barriers and enablers to undertaking the intervention [ Time Frame: At trial commencement (start of RCT) and trial end (end of RCT; approx. 4 to 5 years). ]Multidisciplinary clinician focus groups at each recruitment site.
- Experience of receiving the intervention and the barriers and enablers to the PSG and NIV usage [ Time Frame: At trial end (end of RCT; approx. 4 to 5 years) ]Participant semi-structured interviews.
- Experience of the person they are caring for receiving the intervention and the barriers and enablers to the PSG and NIV usage [ Time Frame: At trial end (end of RCT; approx. 4 to 5 years). ]Caregiver semi-structured interviews.
- Arterial Blood Gas (ABG) (during polysomnography) [ Time Frame: RCT: During the baseline (following the acclimatisation period) and during the follow-up assessment. Cohort: Not Collected. ]Arterial Blood Gas

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age >18 years
- Clinical indication to commence long term NIV
- Confirmed clinical diagnosis of underlying condition
Exclusion Criteria:
- Medically unstable
- Hypoventilation attributable to medications with sedative/respiratory depressant side- effects
- Use of NIV for more than 1 month in the previous 3 months
- Inability to provide informed consent
- Previous intolerance of NIV

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05136222
Contact: David Berlowitz, PhD | +613 9496 3871 | david.berlowitz@austin.org.au |
Australia | |
Flinders Medical Centre | Not yet recruiting |
Adelaide, Australia | |
Contact: Dr Vinod Aiyappan | |
The Prince Charles Hospital | Not yet recruiting |
Brisbane, Australia | |
Contact: Dr Deanne Curtin | |
Motor Neurone Disease Australia | Not yet recruiting |
Canberra, Australia | |
Contact: Dr Gethin Thomas | |
Austin Health | Recruiting |
Melbourne, Australia | |
Contact: Associate Professor Mark Howard | |
Australian MND Registry | Not yet recruiting |
Melbourne, Australia | |
Contact: A/Professor Paul Talman | |
FightMND | Not yet recruiting |
Melbourne, Australia | |
Contact: Dr Bec Sheean | |
Institute for Breathing and Sleep | Not yet recruiting |
Melbourne, Australia | |
Contact: Associate Professor Mark Howard | |
Monash University | Not yet recruiting |
Melbourne, Australia | |
Contact: Professor Natasha Lannin | |
University of Melbourne | Not yet recruiting |
Melbourne, Australia | |
Contact: Professor David Berlowitz | |
Sir Charles Gairdner Hospital | Not yet recruiting |
Perth, Australia | |
Contact: Dr Bhajan Singh | |
Macquarie University | Not yet recruiting |
Sydney, Australia | |
Contact: Professor Dominic Rowe | |
Royal Prince Alfred Hospital | Not yet recruiting |
Sydney, Australia | |
Contact: Dr Amanda Piper | |
Westmead Hospital | Not yet recruiting |
Sydney, Australia | |
Contact: Dr John Wheatley |
Study Chair: | Abbey Sawyer, PhD | University of Melbourne |
Responsible Party: | University of Melbourne |
ClinicalTrials.gov Identifier: | NCT05136222 |
Other Study ID Numbers: |
CT20020 |
First Posted: | November 29, 2021 Key Record Dates |
Last Update Posted: | June 23, 2022 |
Last Verified: | June 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Dataset in de-identified form will be shared on request to corresponding author. |
Time Frame: | 5 years from study completion. |
Access Criteria: | Subject to optional consent, where participants give permission for data to be used for the purpose of:
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Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Non-invasive ventilation Polysomnography Sleep study Amyotrophic lateral sclerosis Chronic respiratory failure |
Motor Neuron Disease Amyotrophic Lateral Sclerosis Sclerosis Pathologic Processes Neurodegenerative Diseases Nervous System Diseases |
Neuromuscular Diseases Spinal Cord Diseases Central Nervous System Diseases TDP-43 Proteinopathies Proteostasis Deficiencies Metabolic Diseases |