Safety and Efficacy Study of Suvorexant in Participants With Primary Insomnia - Study B (MK-4305-029)
Primary Purpose
Primary Insomnia
Status
Completed
Phase
Phase 3
Locations
Study Type
Interventional
Intervention
Suvorexant High Dose (HD)
Suvorexant Low Dose (LD)
Comparator: Placebo
Sponsored by
About this trial
This is an interventional treatment trial for Primary Insomnia
Eligibility Criteria
Inclusion Criteria:
- Must be ≥18 yrs old on the day of signing informed consent
- Diagnosed with Primary Insomnia
- Good physical and mental health
- Participant ≥65 yrs old score at least 25 on the Mini Mental State Examination
- A female participant who is of reproductive potential has a negative serum pregnancy test and agrees to use contraception
- Reports difficulty with initiating and maintaining sleep during the 4 weeks prior to Visit 1 (accordingly to specific protocol criteria)
- Reports spending 6.5 to 9 hours nightly in bed on at least 3 out of 7 nights prior to Visit 1
- Regular bedtime is between 9 pm-1 am
- Willing to refrain from napping while in study
- Able to read, understand and complete questionnaires and all diaries
- Willing to limit alcohol, caffeine, and nicotine consumption while in the study
- For a portion of participants: Must be willing to stay overnight in a sleep laboratory and must be willing to stay in bed for at least 8 hours each night while at the sleep laboratory
Exclusion Criteria:
- Female participant is pregnant and/or breastfeeding at Prestudy visit, or expecting to conceive while in study
- History or diagnosis of another sleep disorder
- Difficulty sleeping due to a medical condition
- History of a neurological disorder
- History of bipolar disorder, psychotic disorder, or posttraumatic stress disorder, or current psychiatric disorder that requires a prohibited medication
- Ongoing depression
- History of substance abuse or dependence
- History or current evidence of a clinically significant cardiovascular disorder or clinically significant electrocardiogram (ECG) at Prestudy Visit
- Taking certain prohibited medications
- Consumption of the equivalent of >15 cigarettes a day
- History of malignancy ≤5 years prior to signing informed consent, except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer
- Participant is considered morbidly obese
- Previously randomized in another investigational study of suvorexant
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm Type
Experimental
Experimental
Placebo Comparator
Arm Label
Suvorexant HD
Suvorexant LD
Placebo
Arm Description
Drug
Drug
Placebo Comparator
Outcomes
Primary Outcome Measures
Suvorexant HD Versus Placebo: Change From Baseline in Mean Subjective Total Sleep Time (sTSTm) at Month 1
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily electronic diary (e-diary). Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any polysomnography [PSG] nights) falling within the day range; Month 1 range is Days 23-30 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in sTSTm at Month 3
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 3 range is Days 76-90 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in Wakefulness After Persistent Sleep Onset (WASO) at Month 1
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Suvorexant HD Versus Placebo: Change From Baseline in WASO at Month 3
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Suvorexant HD Versus Placebo: Change From Baseline in Mean Subjective Time to Sleep Onset (sTSOm) at Month 1
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 1 range is Days 23-30 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in sTSOm at Month 3
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 3 range is Days 76-90 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in Latency to Onset of Persistent Sleep (LPS) at Month 1
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Suvorexant HD Versus Placebo: Change From Baseline in LPS at Month 3
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Number of Participants With an Adverse Event (AE) During 3-Month DB TRT Phase
An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants with an AE occurring during the 3-month DB TRT Phase are counted once in this summary.
Number of Participants Who Discontinued Study Drug Due to an AE Occurring During 3-Month DB TRT Phase
An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants who discontinued study drug treatment due to an AE occurring during the 3-month DB TRT Phase are counted once in this summary.
Secondary Outcome Measures
Suvorexant HD Versus Placebo: Change From Baseline in sTSTm at Week 1
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Week 1 range is Days 2-8 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in WASO at Night 1
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Suvorexant HD Versus Placebo: Change From Baseline in sTSOm at Week 1
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Week 1 range is Days 2-8 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Suvorexant HD Versus Placebo: Change From Baseline in LPS at Night 1
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Full Information
NCT ID
NCT01097629
First Posted
March 26, 2010
Last Updated
August 15, 2019
Sponsor
Merck Sharp & Dohme LLC
1. Study Identification
Unique Protocol Identification Number
NCT01097629
Brief Title
Safety and Efficacy Study of Suvorexant in Participants With Primary Insomnia - Study B (MK-4305-029)
Official Title
A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study to Evaluate the Safety and Efficacy of MK-4305 in Patients With Primary Insomnia - Study B
Study Type
Interventional
2. Study Status
Record Verification Date
August 2019
Overall Recruitment Status
Completed
Study Start Date
May 3, 2010 (Actual)
Primary Completion Date
November 8, 2011 (Actual)
Study Completion Date
November 8, 2011 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Merck Sharp & Dohme LLC
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
This is a multicenter study to test the hypothesis that suvorexant (MK-4305) is superior to placebo in improving insomnia as measured by change from baseline in: subjective total sleep time and time to sleep onset, wake time after persistent sleep onset, and latency to onset of persistent sleep.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Primary Insomnia
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
1020 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Suvorexant HD
Arm Type
Experimental
Arm Description
Drug
Arm Title
Suvorexant LD
Arm Type
Experimental
Arm Description
Drug
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo Comparator
Intervention Type
Drug
Intervention Name(s)
Suvorexant High Dose (HD)
Other Intervention Name(s)
MK-4305
Intervention Description
Suvorexant 40 mg + placebo matching suvorexant 20 mg for participants <65 years old; Suvorexant 30 mg + placebo matching suvorexant 15 mg for participants ≥65 years old; all study drug is tablet for oral administration, taken once daily at bedtime. Participants receive this dose during the 3-month Treatment (TRT) Phase. During the 1-week double-blind (DB) Run-out (RO) following the TRT phase, participants in this study arm receive the noted suvorexant dose or placebo, in a 1:1 ratio. During the 2-week single-blind Run-in period prior to randomization all participants receive placebo to suvorexant once daily at bedtime.
Intervention Type
Drug
Intervention Name(s)
Suvorexant Low Dose (LD)
Other Intervention Name(s)
MK-4305
Intervention Description
Suvorexant 20 mg + placebo matching suvorexant 40 mg for participants <65 years old; Suvorexant 15 mg + placebo matching suvorexant 30 mg for participants ≥65 years old; all study drug is tablet for oral administration, taken once daily at bedtime. Participants receive this dose during the 3-month TRT Phase. During the 1-week DB RO following the TRT phase, participants in this study arm receive the noted suvorexant dose or placebo, in a 1:1 ratio. During the 2-week single-blind Run-in period prior to randomization all participants receive placebo to suvorexant once daily at bedtime.
Intervention Type
Drug
Intervention Name(s)
Comparator: Placebo
Intervention Description
Matching placebos to suvorexant 40 mg and 20 mg for participants <65 years old; matching placebos to suvorexant 30 mg and 15 mg for participants ≥65 years old; all study drug is tablet for oral administration, taken once daily at bedtime. Placebo is a third treatment arm for comparison to the two active (suvorexant) treatment arms during the 3-month TRT Phase. During the 1-week DB RO following the TRT phase, participants in this study arm continue to receive placebo. During the 2-week single-blind Run-in period prior to randomization all participants receive placebo to suvorexant once daily at bedtime.
Primary Outcome Measure Information:
Title
Suvorexant HD Versus Placebo: Change From Baseline in Mean Subjective Total Sleep Time (sTSTm) at Month 1
Description
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily electronic diary (e-diary). Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any polysomnography [PSG] nights) falling within the day range; Month 1 range is Days 23-30 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Month 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in sTSTm at Month 3
Description
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 3 range is Days 76-90 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Month 3
Title
Suvorexant HD Versus Placebo: Change From Baseline in Wakefulness After Persistent Sleep Onset (WASO) at Month 1
Description
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Month 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in WASO at Month 3
Description
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Month 3
Title
Suvorexant HD Versus Placebo: Change From Baseline in Mean Subjective Time to Sleep Onset (sTSOm) at Month 1
Description
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 1 range is Days 23-30 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Month 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in sTSOm at Month 3
Description
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Month 3 range is Days 76-90 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Month 3
Title
Suvorexant HD Versus Placebo: Change From Baseline in Latency to Onset of Persistent Sleep (LPS) at Month 1
Description
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Month 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in LPS at Month 3
Description
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Month 3
Title
Number of Participants With an Adverse Event (AE) During 3-Month DB TRT Phase
Description
An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants with an AE occurring during the 3-month DB TRT Phase are counted once in this summary.
Time Frame
Up to 3 months
Title
Number of Participants Who Discontinued Study Drug Due to an AE Occurring During 3-Month DB TRT Phase
Description
An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants who discontinued study drug treatment due to an AE occurring during the 3-month DB TRT Phase are counted once in this summary.
Time Frame
Up to 3 months
Secondary Outcome Measure Information:
Title
Suvorexant HD Versus Placebo: Change From Baseline in sTSTm at Week 1
Description
sTSTm is the average over a defined day range of the participant's report of the total amount of time spent asleep before waking for the day, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Week 1 range is Days 2-8 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Week 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in WASO at Night 1
Description
WASO is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of wakefulness from the onset of persistent sleep (i.e., 10 consecutive minutes of sleep) to the end of PSG assessment the following morning. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Night 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in sTSOm at Week 1
Description
sTSOm is the average over a defined day range of the participant's report of the duration of time that it took to fall asleep, as recorded in a daily e-diary. Averages were derived by taking the mean of all available daily measurements (excluding the mornings following any PSG nights) falling within the day range; Week 1 range is Days 2-8 (Day 1 is day of first double-blind dose). A participant must have at least 3 days of data during the defined day range to calculate an average for the day range; otherwise, the mean value was considered missing for that day range. The baseline value is the mean of the last 7 daily measurements obtained during the placebo Run-in period.
Time Frame
Baseline and Week 1
Title
Suvorexant HD Versus Placebo: Change From Baseline in LPS at Night 1
Description
LPS is measured during overnight sleep laboratory (PSG) assessments at baseline, Night 1, Month 1 and Month 3, and is defined as the duration of time from the beginning of PSG assessment ("Lights-Off") to the first interval of 10 consecutive minutes of sleep. Beginning of PSG assessment ("Lights-Off") is at approximately the participant's habitual bedtime. The participant is awakened, or allowed to get out of bed if already awake, after 8 hours of PSG recording ("Lights-On"). PSG assessments consist of electronic measurement of brain activity and eye and muscle movements. PSG data was scored by a Centralized PSG reading center.
Time Frame
Baseline and Night 1
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Must be ≥18 yrs old on the day of signing informed consent
Diagnosed with Primary Insomnia
Good physical and mental health
Participant ≥65 yrs old score at least 25 on the Mini Mental State Examination
A female participant who is of reproductive potential has a negative serum pregnancy test and agrees to use contraception
Reports difficulty with initiating and maintaining sleep during the 4 weeks prior to Visit 1 (accordingly to specific protocol criteria)
Reports spending 6.5 to 9 hours nightly in bed on at least 3 out of 7 nights prior to Visit 1
Regular bedtime is between 9 pm-1 am
Willing to refrain from napping while in study
Able to read, understand and complete questionnaires and all diaries
Willing to limit alcohol, caffeine, and nicotine consumption while in the study
For a portion of participants: Must be willing to stay overnight in a sleep laboratory and must be willing to stay in bed for at least 8 hours each night while at the sleep laboratory
Exclusion Criteria:
Female participant is pregnant and/or breastfeeding at Prestudy visit, or expecting to conceive while in study
History or diagnosis of another sleep disorder
Difficulty sleeping due to a medical condition
History of a neurological disorder
History of bipolar disorder, psychotic disorder, or posttraumatic stress disorder, or current psychiatric disorder that requires a prohibited medication
Ongoing depression
History of substance abuse or dependence
History or current evidence of a clinically significant cardiovascular disorder or clinically significant electrocardiogram (ECG) at Prestudy Visit
Taking certain prohibited medications
Consumption of the equivalent of >15 cigarettes a day
History of malignancy ≤5 years prior to signing informed consent, except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer
Participant is considered morbidly obese
Previously randomized in another investigational study of suvorexant
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Medical Monitor
Organizational Affiliation
Merck Sharp & Dohme LLC
Official's Role
Study Director
12. IPD Sharing Statement
Plan to Share IPD
Yes
IPD Sharing Plan Description
https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
IPD Sharing URL
http://engagezone.msd.com/ds_documentation.php
Citations:
PubMed Identifier
25526970
Citation
Herring WJ, Connor KM, Ivgy-May N, Snyder E, Liu K, Snavely DB, Krystal AD, Walsh JK, Benca RM, Rosenberg R, Sangal RB, Budd K, Hutzelmann J, Leibensperger H, Froman S, Lines C, Roth T, Michelson D. Suvorexant in Patients With Insomnia: Results From Two 3-Month Randomized Controlled Clinical Trials. Biol Psychiatry. 2016 Jan 15;79(2):136-48. doi: 10.1016/j.biopsych.2014.10.003. Epub 2014 Oct 23.
Results Reference
result
PubMed Identifier
33210445
Citation
Snyder ES, Tao P, Svetnik V, Lines C, Herring WJ. Use of the single-item Patient Global Impression-Severity scale as a self-reported assessment of insomnia severity. J Sleep Res. 2021 Feb;30(1):e13141. doi: 10.1111/jsr.13141. Epub 2020 Jul 30.
Results Reference
derived
PubMed Identifier
31926466
Citation
Svetnik V, Snyder ES, Tao P, Roth T, Lines C, Herring WJ. How well can a large number of polysomnography sleep measures predict subjective sleep quality in insomnia patients? Sleep Med. 2020 Mar;67:137-146. doi: 10.1016/j.sleep.2019.08.020. Epub 2019 Sep 11.
Results Reference
derived
PubMed Identifier
30522875
Citation
Herring WJ, Connor KM, Snyder E, Snavely DB, Morin CM, Lines C, Michelson D. Effects of suvorexant on the Insomnia Severity Index in patients with insomnia: analysis of pooled phase 3 data. Sleep Med. 2019 Apr;56:219-223. doi: 10.1016/j.sleep.2018.09.010. Epub 2018 Oct 2.
Results Reference
derived
PubMed Identifier
29112763
Citation
Svetnik V, Snyder ES, Tao P, Scammell TE, Roth T, Lines C, Herring WJ. Insight Into Reduction of Wakefulness by Suvorexant in Patients With Insomnia: Analysis of Wake Bouts. Sleep. 2018 Jan 1;41(1). doi: 10.1093/sleep/zsx178.
Results Reference
derived
PubMed Identifier
28427826
Citation
Herring WJ, Connor KM, Snyder E, Snavely DB, Zhang Y, Hutzelmann J, Matzura-Wolfe D, Benca RM, Krystal AD, Walsh JK, Lines C, Roth T, Michelson D. Suvorexant in Elderly Patients with Insomnia: Pooled Analyses of Data from Phase III Randomized Controlled Clinical Trials. Am J Geriatr Psychiatry. 2017 Jul;25(7):791-802. doi: 10.1016/j.jagp.2017.03.004. Epub 2017 Mar 8.
Results Reference
derived
PubMed Identifier
28265715
Citation
Herring WJ, Connor KM, Snyder E, Snavely DB, Zhang Y, Hutzelmann J, Matzura-Wolfe D, Benca RM, Krystal AD, Walsh JK, Lines C, Roth T, Michelson D. Clinical profile of suvorexant for the treatment of insomnia over 3 months in women and men: subgroup analysis of pooled phase-3 data. Psychopharmacology (Berl). 2017 Jun;234(11):1703-1711. doi: 10.1007/s00213-017-4573-1. Epub 2017 Mar 7.
Results Reference
derived
PubMed Identifier
27397664
Citation
Herring WJ, Connor KM, Snyder E, Snavely DB, Zhang Y, Hutzelmann J, Matzura-Wolfe D, Benca RM, Krystal AD, Walsh JK, Lines C, Roth T, Michelson D. Suvorexant in Patients with Insomnia: Pooled Analyses of Three-Month Data from Phase-3 Randomized Controlled Clinical Trials. J Clin Sleep Med. 2016 Sep 15;12(9):1215-25. doi: 10.5664/jcsm.6116.
Results Reference
derived
PubMed Identifier
27198953
Citation
Snyder E, Ma J, Svetnik V, Connor KM, Lines C, Michelson D, Herring WJ. Effects of suvorexant on sleep architecture and power spectral profile in patients with insomnia: analysis of pooled phase 3 data. Sleep Med. 2016 Mar;19:93-100. doi: 10.1016/j.sleep.2015.10.007. Epub 2015 Nov 10.
Results Reference
derived
Available IPD and Supporting Information:
Available IPD/Information Type
CSR Synopsis
Available IPD/Information URL
http://www.merck.com/clinical-trials/study.html?id=4305-029&kw=4305-029&tab=access
Learn more about this trial
Safety and Efficacy Study of Suvorexant in Participants With Primary Insomnia - Study B (MK-4305-029)
We'll reach out to this number within 24 hrs