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Trial ยท NCT02952820

Long-term Study of Lemborexant in Insomnia Disorder (SUNRISE 2)

NCT02952820, Phase 3, Completed, Eisai Inc.; results first posted 2020-01-21

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Long-term Study of Lemborexant in Insomnia Disorder (SUNRISE 2). Trials, record NCT02952820. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02952820

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Long-term Study of Lemborexant in Insomnia Disorder (SUNRISE 2)
NCT number
NCT02952820
Status
Completed
Phases
Phase 3
Enrollment
971 participants, actual
Lead sponsor
Eisai Inc.
Conditions
Insomnia Disorder
Interventions
lemborexant, Placebo
First posted
2016-11-02
Last updated
2020-02-06
Other registries' IDs
eudract:2015-001463-39
Results first posted
2020-01-21

Source ClinicalTrials.gov

Registered outcomes23

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryChange From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Baseline and Month 6sSOL was defined as estimated minutes from the time that the participant attempted to sleep until sleep onset.
SecondaryChange From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3Baseline, (mean of 7 nights [approximately Week 1]), Months 1 and 3sSOL was defined as estimated minutes from time attempted to sleep to sleep onset.
SecondaryChange From Baseline in Subjective Sleep Efficiency (sSE) at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6
sSE was defined as percentage of subjective total sleep time (sTST) divided by subjective time spent in bed, calculated as the interval from the time the participant reported attempting to sleep until the time participant stopped trying to sleep for the night (operationalized as the time the participant got out of bed for the day), and time spent asleep derived from subjective time spent in bed minus sWASO.
SecondaryChange From Baseline in Subjective Wake After Sleep Onset (sWASO) at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6
sWASO was defined as sum of estimated minutes of wake during the night after initial sleep onset until the time the participant stopped trying to sleep for the night, operationalized as the time the participant got out of bed for the day.
SecondaryChange From Baseline in sTST at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6sTST was defined as minutes of sleep from sleep onset to time stopped trying to sleep for the night.
SecondaryPercentage of Sleep Onset Responders and Sleep Maintenance Responders at Month 6Month 6
Sleep onset responder was defined as follows: sSOL at study Baseline was greater than or equal to (\>=) 30 minutes and mean sSOL at 6 months was less than or equal to (\<=) 20 minutes. Sleep maintenance responder was defined as follows: sWASO at study Baseline was \>=60 minutes and mean sWASO at 6 months was \<=60 minutes and showed a reduction of greater than (\>)10 minutes compared to Study Baseline.
SecondaryPercentage of Sleep Onset Responders and Sleep Maintenance Responders at Month 12Month 12
Sleep onset responder was defined as follows: sSOL at study Baseline was \>=30 minutes and mean sSOL at 6 months was \<=20 minutes. Sleep maintenance responder was defined as follows: sWASO at study Baseline was \>=60 minutes and mean sWASO at 6 months was \<=60 minutes and showed a reduction of \> 10 minutes compared to study Baseline.
SecondaryChange From Baseline in Insomnia Severity Index (ISI) Daytime Functioning Score at Months 1, 3, and 6Baseline, Months 1, 3, and 6
The ISI is a 4-7 item, self-report questionnaire assessing the nature, severity, and impact of insomnia. The dimensions evaluated were: 1. severity of sleep onset; 2. sleep maintenance; 3. early morning awakening problems; 4. sleep dissatisfaction; 5. interference of sleep difficulties with daytime functioning; 6. noticeability of the sleep problems by others; and 7. distress caused by the sleep difficulties. A 5-point Likert scale was used to rate each item (from 0=no problem to 4=very severe problem). Daytime functioning score (sum of items 4 to 7) were analyzed. Higher score indicated severe insomnia problem. The total score range for sum of items is 0-16.
SecondaryChange From Baseline in Fatigue Severity Scale (FSS) Total Score at Months 1, 3 and 6Baseline, Months 1, 3 and 6
The FSS is a self-reported scale on which participants were instructed to choose a number from 1 to 7 that indicated their degree of agreement with 9 statements about their fatigue where "1" indicates strongly disagree and "7", strongly agree. The FSS total score was the sum of all responses to the 9 questions. Higher total scores and average item scores indicated greater fatigue. Total score range is 9 to 63.
Secondary
Change From Baseline in Mean Rating on the Morning Sleepiness Item of the Sleep Diary at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6
Baseline, (mean of 7 nights [approximately Week 1]) in placebo-controlled period, Month 1, 3, 6
The Sleep Diary was used to assess subjective ratings of morning sleepiness with the following question: "How sleepy/alert do you feel this morning?" Participants rated their sleepiness/alertness level on a scale from 1 to 9, with 1 being extremely poor (sleepy) and 9 being extremely good (alert). Higher score indicated better outcome.

Outcomes23

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Baseline and Month 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
minutesMEAN
SECONDARYChange From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3Baseline, (mean of 7 nights [approximately Week 1]), Months 1 and 3
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
minutesMEAN
SECONDARYChange From Baseline in Subjective Sleep Efficiency (sSE) at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
percentage of sTSTMEAN
SECONDARYChange From Baseline in Subjective Wake After Sleep Onset (sWASO) at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
minutesMEAN
SECONDARYChange From Baseline in sTST at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6Baseline, (mean of 7 nights [approximately Week 1]), Months 1, 3 and 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
minutesMEAN
SECONDARYPercentage of Sleep Onset Responders and Sleep Maintenance Responders at Month 6Month 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to number of participants evaluable for specified category.
percentage of respondersNUMBER
SECONDARYPercentage of Sleep Onset Responders and Sleep Maintenance Responders at Month 12Month 12
Overall participants analyzed based on number in On-Treatment FAS (Participants who received at least 1 dose of lemborexant and had at least 1 postdose primary efficacy measurement). Hence, these numbers include lemborexant data from participants re-randomized from placebo in Period 1. Number analyzed=participants analyzed at specified timepoint.
percentage of participantsNUMBER
SECONDARYChange From Baseline in Insomnia Severity Index (ISI) Daytime Functioning Score at Months 1, 3, and 6Baseline, Months 1, 3, and 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
score on a scaleMEAN
SECONDARYChange From Baseline in Fatigue Severity Scale (FSS) Total Score at Months 1, 3 and 6Baseline, Months 1, 3 and 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
score on a scaleMEAN
SECONDARY
Change From Baseline in Mean Rating on the Morning Sleepiness Item of the Sleep Diary at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1, 3 and 6
Baseline, (mean of 7 nights [approximately Week 1]) in placebo-controlled period, Month 1, 3, 6
The FAS was the group of randomized participants who received at least one dose of randomized study drug and had at least one postdose primary efficacy measurement. Number analyzed refers to participants evaluable for this outcome measure at specified time point.
score on a scaleMEAN

Results by group246

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6PlaceboBaseline64.03Standard Deviation 45.209minutes
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Lemborexant 5 mgBaseline62.19Standard Deviation 45.674minutes
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Lemborexant 10 mgBaseline64.97Standard Deviation 44.020minutes
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6PlaceboChange at Month 6-16.57Standard Deviation 35.313minutes
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Lemborexant 5 mgChange at Month 6-29.39Standard Deviation 33.261minutes
Change From Baseline in Subjective Sleep Onset Latency (sSOL) at Month 6Lemborexant 10 mgChange at Month 6-32.49Standard Deviation 35.962minutes
Change From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3PlaceboBaseline64.03Standard Deviation 45.209minutes
Change From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3Lemborexant 5 mgBaseline62.19Standard Deviation 45.674minutes
Change From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3Lemborexant 10 mgBaseline64.97Standard Deviation 44.020minutes
Change From Baseline in sSOL at the Beginning of Treatment (Mean of the 7 Nights After the First Dose in Placebo-Controlled Period), and at Months 1 and 3PlaceboChange at 1st 7 nights-4.11Standard Deviation 27.671minutes

Participant flow24

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Placebo-Controlled Treatment (6 Months)STARTEDPlacebo325
Placebo-Controlled Treatment (6 Months)STARTEDLemborexant 5 mg323
Placebo-Controlled Treatment (6 Months)STARTEDLemborexant 10 mg323
Placebo-Controlled Treatment (6 Months)TreatedPlacebo321
Placebo-Controlled Treatment (6 Months)TreatedLemborexant 5 mg319
Placebo-Controlled Treatment (6 Months)TreatedLemborexant 10 mg319
Placebo-Controlled Treatment (6 Months)Safety Analysis SetPlacebo319
Placebo-Controlled Treatment (6 Months)Safety Analysis SetLemborexant 5 mg314
Placebo-Controlled Treatment (6 Months)Safety Analysis SetLemborexant 10 mg314
Placebo-Controlled Treatment (6 Months)COMPLETEDPlacebo261

Adverse events150

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherInfluenzaInfections and infestationsPlacebo1531915
otherInfluenzaInfections and infestationsLemborexant 5 mg2244722
otherInfluenzaInfections and infestationsLemborexant 10 mg2643729
otherNasopharyngitisInfections and infestationsPlacebo4031943
otherNasopharyngitisInfections and infestationsLemborexant 5 mg5144767
otherNasopharyngitisInfections and infestationsLemborexant 10 mg4843756
otherHeadacheNervous system disordersPlacebo2131933
otherHeadacheNervous system disordersLemborexant 5 mg4344776
otherHeadacheNervous system disordersLemborexant 10 mg3243741
otherSomnolenceNervous system disordersPlacebo53195

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo0319
Total, all-cause mortalityLemborexant 5 mg0447
Total, all-cause mortalityLemborexant 10 mg0437
Total, other adverse eventsPlacebo75319
Total, other adverse eventsLemborexant 5 mg129447
Total, other adverse eventsLemborexant 10 mg140437
Total, serious adverse eventsPlacebo5319
Total, serious adverse eventsLemborexant 5 mg18447
Total, serious adverse eventsLemborexant 10 mg16437

Papers12

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
32585700DERIVEDPubMed
33576735DERIVEDPubMed
33636648DERIVEDPubMed
34077032DERIVEDPubMed
35220140DERIVEDPubMed
35254948DERIVEDPubMed
35402894DERIVEDPubMed
37339396DERIVEDPubMed
37796657DERIVEDPubMed
38748321DERIVEDPubMed

1 to 10 of 12

See all 12 papers

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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The record and each of its lists are JSON, twenty rows a page. No key.

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