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A Study to Evaluate the Respiratory Safety of Lemborexant in Adult and Elderly Participants With Moderate to Severe Obstructive Sleep Apnea, and in Adult and Elderly Participants With Moderate to Severe Chronic Obstructive Pulmonary Disease

A Multicenter, Randomized, Double-Blind, Placebo-Controlled, 2-Period, Crossover Study to Evaluate the Respiratory Safety of Lemborexant in Adult and Elderly Subjects With Moderate to Severe Obstructive Sleep Apnea and Adult and Elderly Subjects With Moderate to Severe Chronic Obstructive Pulmonary Disease

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04647383
Enrollment
63
Registered
2020-11-30
Start date
2021-01-06
Completion date
2022-02-10
Last updated
2023-10-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Disease, Chronic Obstructive, Respiration Disorders, Sleep Apnea, Obstructive

Keywords

E2006, Lemborexant, Peripheral Oxygen Saturation, Apnea Hypopnea Index

Brief summary

The primary purpose of the study is to determine whether lemborexant increases the apnea hypopnea index (AHI) on Day 8 of treatment in adult and elderly participants (adults greater than or equal to \[\>=\] 45 to less than \[\<\] 65 years; elderly \>=65 to 90 years) with moderate to severe obstructive sleep apnea (OSA) compared with placebo, and using pulse oximetry determine whether lemborexant decreases the peripheral oxygen saturation (SpO2) during total sleep time (TST) on Day 8 of treatment in adult and elderly participants (adults \>=45 to \<65 years; elderly \>=65 to 90 years) with moderate to severe chronic obstructive pulmonary disease (COPD) compared with placebo.

Interventions

DRUGPlacebo

OSA: Lemborexant-matched oral placebo will be administered at bedtime in the clinic (within 5 minutes before lights off) or at home when not in the clinic.

OSA: 10 mg oral lemborexant will be administered at bedtime in the clinic (within 5 minutes before lights off) or at home when not in the clinic.

Sponsors

Eisai Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
45 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

1. Male or female, age \>=45 and \<=90 at the time of informed consent 2. Voluntary agreement and ability to provide written informed consent 3. Body mass index (BMI) \<40 Kilogram per meter square (kg/m\^2) 4. Reports habitually sleeping for at least 5.5 hours per night 5. Reports habitual bedtime between 21:00 and midnight 6. Agrees to stay in bed for 7 hours per night for the duration of the study 7. At Screening Visit 2: Has completed the sleep diary for at least 5 consecutive nights 8. At Screening Visit 2: Confirmation of mean habitual bedtime (MHB) between 21:00 and midnight (sleep diary) Additional Inclusion Criteria (OSA Cohort) 9. Moderate to severe OSA diagnosed according to the criteria of the ICSD, confirmed by PSG (home sleep testing by portable monitor is acceptable) within the previous 5 years or a repeated PSG during screening 10. On screening PSG: moderate OSA (defined as 15 \<=AHI \<30) or severe OSA (defined as AHI \>=30 per hour) 11. SpO2 \>=94% assessed as part of vital signs at Screening Visit 1 Additional Inclusion Criteria (COPD Cohort) 12. Screening spirometry performed as per the Global Initiative for Obstructive Lung Disease (GOLD) recommendations 13. On screening spirometry, based on post-bronchodilator Forced Expiratory Volume in 1 second (FEV1): • FEV1/Forced Vital Capacity (FVC) \<0.70 and one of the following: * 50% \<=FEV1 \<80% predicted (GOLD 2 Classification for moderate COPD) or * 30% \<=FEV1 \<50% predicted (GOLD 3 Classification for severe COPD) 14. Moderate to severe COPD according to medical history and screening spirometry as per the GOLD criteria (GOLD 2019) 15. On screening PSG * AHI \<15 * SpO2 during wakefulness \>90% (both supine and sitting) * SpO2 during sleep \>=80% for at least 75% of the recording period with no more than five continuous minutes \<80% and with no SpO2 readings \<70%

Exclusion criteria

1. Females of childbearing potential 2. A current diagnosis of restless legs syndrome, periodic limb movement disorder, circadian rhythm sleep disorder, or narcolepsy 3. Reports symptoms potentially related to narcolepsy, that in the clinical opinion of the investigator indicate the need for referral for a diagnostic evaluation for the presence of narcolepsy 4. A history of symptoms of rapid eye movement (REM) Behavior Disorder, sleep-related violent behavior, sleep-driving, or sleep-eating, or symptoms of another parasomnia that in the investigator's opinion make the participant unsuitable for the study 5. Periodic Limb Movement with Arousal Index (PLMAI) as measured on the screening PSG: * Age 18 to \<65 years: PLMAI \>=10 * Age \>65 years: PLMAI \>15 6. A prolonged QT interval by Fredericia (QTcF) (QTcF \>450 milliseconds \[ms\]) as demonstrated by a repeated electrocardiogram (ECG) at Screening 7. Any suicidal ideation with intent with or without a plan at Screening or within 6 months of Screening (that is, answering Yes to questions 4 or 5 on the Suicidal Ideation section of the Columbia-Suicide Severity Rating Scale \[C-SSRS\]) 8. Any lifetime suicidal behavior (per the Suicidal Behavior section of the C-SSRS) within 10 years of Screening 9. Evidence of clinically significant disease (example, cardiac, respiratory, gastrointestinal, renal disease) that in the opinion of the investigator(s) could affect the participant's safety or interfere with the study assessments 10. Hypersensitivity to the study drug or any of the excipients 11. Used any prohibited prescription or over-the-counter medications within 1 week or 5 half-lives, whichever is longer, before the screening PSG 12. Any history of or concomitant medical condition that in the opinion of the investigator(s) would compromise the participant's ability to safely complete the study 13. Scheduled for surgery during the study that requires general anesthesia or administration of prohibited medications 14. Psychotic disorder(s) or unstable recurrent affective disorder(s) evident by use of antipsychotics or prior suicide attempt(s) within approximately the last 2 years 15. History of drug or alcohol dependency or abuse within approximately the last 2 years 16. Use of illegal recreational drugs (includes marijuana, regardless of whether prescribed for medicinal use) 17. Currently enrolled in another clinical study or used any investigational drug or device within 28 days or 5\*the half-life, whichever is longer preceding informed consent 18. Previously participated in other clinical trial of lemborexant 19. Exposure within the last 14 days to an individual with confirmed or probable corona virus disease 2019 (COVID-19) or symptoms within the last 14 days that are on the most recent Centers for Disease Control and Prevention (CDC) list of COVID symptoms or any other reason to consider the participant at potential risk for an acute COVID-19 infection Additional

Design outcomes

Primary

MeasureTime frameDescription
OSA Cohort: Apnea-Hypopnea Index (AHI) on Day 8 of Treatment Periods 1 and 2Day 8 of Treatment Periods 1 and 2 (up to Day 30)AHI was the number of apneas and hypopneas divided by the total sleep time (TST) (in minutes) and multiplied by 60 (minute per hour \[min/hour\]) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI greater than or equal to (\>=) 5 to less than (\<) 15 is classed as mild, AHI \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using polysomnography (PSG).
COPD Cohort: Peripheral Oxygen Saturation (SpO2) During TST on Day 8 of Treatment Periods 1 and 2Day 8 of Treatment Periods 1 and 2 (up to Day 30)SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.

Secondary

MeasureTime frameDescription
OSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)TST was defined as the total time asleep in minutes using PSG. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.
OSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)ODI was defined as (oxygen desaturations \>=3%\*60)/TST (that is, the average number of oxygen desaturations \>=3% per hour of sleep), as defined by the American Academy of Sleep Medicine. TST was defined as the total time asleep in minutes using PSG.
OSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)Desaturation was defined as decrease in the mean SpO2 of \>=3% (over the last 120 seconds) that lasts for at least 10 seconds. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.
COPD Cohort: Peripheral SpO2 During TST on Day 1 of Treatment Periods 1 and 2Day 1 of Treatment Periods 1 and 2 (up to Day 23)SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.
OSA Cohort: AHI on Day 1 of Treatment Periods 1 and 2Day 1 of Treatment Periods 1 and 2 (up to Day 23)AHI was the number of apneas and hypopneas divided by the TST (in minutes) and multiplied by 60 (min/hour) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI \>=5 to \<15 is classed as mild, \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using PSG.
COPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)TST was defined as the total time asleep in minutes using PSG. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.
COPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)ODI was defined as (oxygen desaturations \>=3%\*60)/TST (that is, the average number of oxygen desaturations \>=3% per hour of sleep), as defined by the American Academy of Sleep Medicine. TST was defined as the total time asleep in minutes using PSG.
COPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)Desaturation was defined as decrease in the mean SpO2 of \>=3% (over the last 120 seconds) that lasts for at least 10 seconds. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.
COPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)AHI was the number of apneas and hypopneas divided by the TST (in minutes) and multiplied by 60 (min/hour) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI \>=5 to \<15 is classed as mild, \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using PSG.
OSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.

Countries

United States

Participant flow

Recruitment details

Participants took part in the study at 10 investigative sites in the United States from 06 January 2021 to 10 February 2022.

Pre-assignment details

A total of 48 participants for the obstructive sleep apnea (OSA) cohort were screened, of which 15 were screen failures and 33 were randomized in OSA cohort to receive study treatment. A total of 108 participants were screened for the chronic obstructive pulmonary disease (COPD) cohort, of which 78 were screen failures and 30 were randomized in COPD cohort to receive study treatment.

Participants by arm

ArmCount
OSA Cohort, Sequence A: Placebo + Lemborexant 10 mg
Participants with OSA received lemborexant-matched placebo tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 1, followed by lemborexant 10 mg tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 2. A washout period of 14 days was maintained between both treatment periods.
16
OSA Cohort, Sequence B: Lemborexant 10 mg + Placebo
Participants with OSA received lemborexant 10 mg tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 1, followed by one lemborexant-matched placebo tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 2. A washout period of 14 days was maintained between both treatment periods.
17
COPD Cohort, Sequence C: Placebo + Lemborexant 10 mg
Participants with COPD received lemborexant-matched placebo tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 1, followed by lemborexant 10 mg tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 2. A washout period of 14 days was maintained between both treatment periods.
14
COPD Cohort, Sequence D: Lemborexant 10 mg + Placebo
Participants with COPD received lemborexant 10 mg tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 1, followed by lemborexant-matched placebo tablet, orally, once daily on the night (within 5 minutes of lights off) of Day 1 through Day 8 of Treatment Period 2. A washout period of 14 days was maintained between both treatment periods.
16
Total63

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Treatment Period 2 (8 Days)Adverse Event0100

Baseline characteristics

CharacteristicOSA Cohort, Sequence A: Placebo + Lemborexant 10 mgOSA Cohort, Sequence B: Lemborexant 10 mg + PlaceboCOPD Cohort, Sequence C: Placebo + Lemborexant 10 mgCOPD Cohort, Sequence D: Lemborexant 10 mg + PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants6 Participants11 Participants12 Participants34 Participants
Age, Categorical
Between 18 and 65 years
11 Participants11 Participants3 Participants4 Participants29 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants2 Participants2 Participants2 Participants11 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants15 Participants12 Participants14 Participants52 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Black or African American
3 Participants4 Participants1 Participants2 Participants10 Participants
Race/Ethnicity, Customized
Japanese
0 Participants1 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
White
12 Participants12 Participants13 Participants14 Participants51 Participants
Sex: Female, Male
Female
3 Participants7 Participants11 Participants10 Participants31 Participants
Sex: Female, Male
Male
13 Participants10 Participants3 Participants6 Participants32 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 330 / 330 / 300 / 30
other
Total, other adverse events
0 / 332 / 332 / 301 / 30
serious
Total, serious adverse events
1 / 330 / 330 / 301 / 30

Outcome results

Primary

COPD Cohort: Peripheral Oxygen Saturation (SpO2) During TST on Day 8 of Treatment Periods 1 and 2

SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.

Time frame: Day 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: Peripheral Oxygen Saturation (SpO2) During TST on Day 8 of Treatment Periods 1 and 290.80 percentage of oxygen saturationStandard Deviation 2.565
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Peripheral Oxygen Saturation (SpO2) During TST on Day 8 of Treatment Periods 1 and 291.27 percentage of oxygen saturationStandard Deviation 2.227
Primary

OSA Cohort: Apnea-Hypopnea Index (AHI) on Day 8 of Treatment Periods 1 and 2

AHI was the number of apneas and hypopneas divided by the total sleep time (TST) (in minutes) and multiplied by 60 (minute per hour \[min/hour\]) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI greater than or equal to (\>=) 5 to less than (\<) 15 is classed as mild, AHI \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using polysomnography (PSG).

Time frame: Day 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The pharmacodynamic (PD) analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter. Here, overall number of participants analyzed signifies those participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: Apnea-Hypopnea Index (AHI) on Day 8 of Treatment Periods 1 and 245.09 events (apnea plus hyponea) per hourStandard Deviation 22.851
OSA Cohort: Lemborexant 10 mgOSA Cohort: Apnea-Hypopnea Index (AHI) on Day 8 of Treatment Periods 1 and 244.90 events (apnea plus hyponea) per hourStandard Deviation 22.246
Secondary

COPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2

Desaturation was defined as decrease in the mean SpO2 of \>=3% (over the last 120 seconds) that lasts for at least 10 seconds. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 126.77 events (number of desaturations)Standard Deviation 27.485
OSA Cohort: PlaceboCOPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 825.33 events (number of desaturations)Standard Deviation 28.243
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 136.07 events (number of desaturations)Standard Deviation 31.509
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 829.97 events (number of desaturations)Standard Deviation 33.055
Secondary

COPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2

AHI was the number of apneas and hypopneas divided by the TST (in minutes) and multiplied by 60 (min/hour) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI \>=5 to \<15 is classed as mild, \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using PSG.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2Day 16.09 events (apnea plus hyponea) per hourStandard Deviation 4.827
OSA Cohort: PlaceboCOPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2Day 85.88 events (apnea plus hyponea) per hourStandard Deviation 5.245
OSA Cohort: Lemborexant 10 mgCOPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2Day 17.40 events (apnea plus hyponea) per hourStandard Deviation 6.331
OSA Cohort: Lemborexant 10 mgCOPD Cohort: AHI on Days 1 and 8 of Treatment Periods 1 and 2Day 86.15 events (apnea plus hyponea) per hourStandard Deviation 5.185
Secondary

COPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2

ODI was defined as (oxygen desaturations \>=3%\*60)/TST (that is, the average number of oxygen desaturations \>=3% per hour of sleep), as defined by the American Academy of Sleep Medicine. TST was defined as the total time asleep in minutes using PSG.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2Day 14.61 events per hourStandard Deviation 4.462
OSA Cohort: PlaceboCOPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2Day 84.34 events per hourStandard Deviation 4.562
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2Day 15.46 events per hourStandard Deviation 4.823
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Mean ODI on Days 1 and 8 of Treatment Periods 1 and 2Day 84.71 events per hourStandard Deviation 4.772
Secondary

COPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2

TST was defined as the total time asleep in minutes using PSG. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <90%15.593 percentage of TSTStandard Deviation 23.3552
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <85%0.860 percentage of TSTStandard Deviation 1.9286
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <80%0.155 percentage of TSTStandard Deviation 0.5416
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <90%22.991 percentage of TSTStandard Deviation 30.9595
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <85%3.330 percentage of TSTStandard Deviation 9.9935
OSA Cohort: PlaceboCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <80%0.152 percentage of TSTStandard Deviation 0.4743
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <85%1.151 percentage of TSTStandard Deviation 3.1124
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <90%21.468 percentage of TSTStandard Deviation 30.0042
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <90%21.086 percentage of TSTStandard Deviation 30.356
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <85%3.286 percentage of TSTStandard Deviation 9.019
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <80%0.075 percentage of TSTStandard Deviation 0.2218
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Percentage of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <80%0.224 percentage of TSTStandard Deviation 0.5912
Secondary

COPD Cohort: Peripheral SpO2 During TST on Day 1 of Treatment Periods 1 and 2

SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.

Time frame: Day 1 of Treatment Periods 1 and 2 (up to Day 23)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureValue (MEAN)Dispersion
OSA Cohort: PlaceboCOPD Cohort: Peripheral SpO2 During TST on Day 1 of Treatment Periods 1 and 291.53 percentage of oxygen saturationStandard Deviation 2.161
OSA Cohort: Lemborexant 10 mgCOPD Cohort: Peripheral SpO2 During TST on Day 1 of Treatment Periods 1 and 291.13 percentage of oxygen saturationStandard Deviation 2.801
Secondary

OSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2

Desaturation was defined as decrease in the mean SpO2 of \>=3% (over the last 120 seconds) that lasts for at least 10 seconds. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter. Here, number analyzed signifies those participants who were evaluable at given timepoint for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 1253.85 events (number of desaturations)Standard Deviation 161.971
OSA Cohort: PlaceboOSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 8255.28 events (number of desaturations)Standard Deviation 149.158
OSA Cohort: Lemborexant 10 mgOSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 1256.52 events (number of desaturations)Standard Deviation 141.952
OSA Cohort: Lemborexant 10 mgOSA Cohort: Absolute Number of Desaturations (>=3% Reduction From Baseline SpO2) on Days 1 and 8 of Treatment Periods 1 and 2Day 8273.97 events (number of desaturations)Standard Deviation 155.209
Secondary

OSA Cohort: AHI on Day 1 of Treatment Periods 1 and 2

AHI was the number of apneas and hypopneas divided by the TST (in minutes) and multiplied by 60 (min/hour) (that is, the average number of apneas and hypopneas per hour of sleep), as defined by the American Academy of Sleep Medicine. An AHI \>=5 to \<15 is classed as mild, \>=15 to \<30 as moderate, and AHI \>=30 as severe. TST was defined as the total time asleep in minutes using PSG.

Time frame: Day 1 of Treatment Periods 1 and 2 (up to Day 23)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter.

ArmMeasureValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: AHI on Day 1 of Treatment Periods 1 and 244.65 events (apnea plus hyponea) per hourStandard Deviation 25.77
OSA Cohort: Lemborexant 10 mgOSA Cohort: AHI on Day 1 of Treatment Periods 1 and 241.64 events (apnea plus hyponea) per hourStandard Deviation 21.215
Secondary

OSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2

ODI was defined as (oxygen desaturations \>=3%\*60)/TST (that is, the average number of oxygen desaturations \>=3% per hour of sleep), as defined by the American Academy of Sleep Medicine. TST was defined as the total time asleep in minutes using PSG.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter. Here, number analyzed signifies those participants who were evaluable at given timepoint for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2Day 139.71 events per hourStandard Deviation 24.547
OSA Cohort: PlaceboOSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2Day 839.07 events per hourStandard Deviation 21.475
OSA Cohort: Lemborexant 10 mgOSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2Day 136.52 events per hourStandard Deviation 20.325
OSA Cohort: Lemborexant 10 mgOSA Cohort: Mean Oxygen Desaturation Index (ODI) on Days 1 and 8 of Treatment Periods 1 and 2Day 839.51 events per hourStandard Deviation 22.037
Secondary

OSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2

TST was defined as the total time asleep in minutes using PSG. SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter. Here, number analyzed signifies those participants who were evaluable at given timepoint for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <85%2.708 percentage of TSTStandard Deviation 4.94
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <90%11.966 percentage of TSTStandard Deviation 16.8941
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <85%2.283 percentage of TSTStandard Deviation 3.6302
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <80%0.776 percentage of TSTStandard Deviation 1.7896
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <80%0.522 percentage of TSTStandard Deviation 1.3345
OSA Cohort: PlaceboOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <90%9.474 percentage of TSTStandard Deviation 9.793
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <80%0.651 percentage of TSTStandard Deviation 1.3153
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <90%12.849 percentage of TSTStandard Deviation 15.5993
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <85%3.748 percentage of TSTStandard Deviation 6.601
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 1: SpO2 <80%1.125 percentage of TSTStandard Deviation 2.5021
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <90%11.295 percentage of TSTStandard Deviation 12.6345
OSA Cohort: Lemborexant 10 mgOSA Cohort: Percentage (%) of TST During Which SpO2 Was <90%, <85% and <80% on Days 1 and 8 of Treatment Periods 1 and 2Day 8: SpO2 <85%2.696 percentage of TSTStandard Deviation 4.4283
Secondary

OSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2

SpO2 is an estimate of the amount of oxygen in the blood. It is the percentage of hemoglobin containing oxygen compared to the total amount of hemoglobin in the blood (that is, oxygenated hemoglobin versus oxygenated and non-oxygenated hemoglobin). SpO2 was monitored by noninvasive method known as transmissive pulse oximetry. TST was defined as the total time asleep in minutes using PSG.

Time frame: Days 1 and 8 of Treatment Periods 1 and 2 (up to Day 30)

Population: The PD analysis set for each cohort was the group of participants who had sufficient PD data to derive at least 1 primary PD parameter. Here, number analyzed signifies those participants who were evaluable at given timepoint for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
OSA Cohort: PlaceboOSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2Day 193.12 percentage of oxygen saturationStandard Deviation 2.073
OSA Cohort: PlaceboOSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2Day 893.44 percentage of oxygen saturationStandard Deviation 1.983
OSA Cohort: Lemborexant 10 mgOSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2Day 193.00 percentage of oxygen saturationStandard Deviation 2.462
OSA Cohort: Lemborexant 10 mgOSA Cohort: Peripheral SpO2 During TST on Days 1 and 8 of Treatment Periods 1 and 2Day 893.06 percentage of oxygen saturationStandard Deviation 1.983

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026