Almorexant (ACT-078573) in Elderly Subjects With Chronic Primary Insomnia
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ClinicalTrials.gov Identifier: NCT00606593 |
Recruitment Status :
Completed
First Posted : February 4, 2008
Results First Posted : March 11, 2013
Last Update Posted : March 14, 2016
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Chronic Primary Insomnia | Drug: ACT-078573 oral capsules at 25 and 100 mg and matching placebo Drug: ACT-078573 and matching placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 112 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Multicenter, Double-blind, Randomized, Placebo-controlled, 5-period, 5-treatment Crossover, Dose-finding Study to Evaluate the Efficacy and Safety of Oral Administration of ACT-078573 in Elderly Subjects With Chronic Primary Insomnia |
Study Start Date : | December 2007 |
Actual Primary Completion Date : | April 2008 |
Actual Study Completion Date : | May 2008 |
Arm | Intervention/treatment |
---|---|
Experimental: ABECD
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
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Drug: ACT-078573 oral capsules at 25 and 100 mg and matching placebo
5-period, 5-treatment crossover: sequences: ABECD, BCADE, CDBEA, DECAB, EADBC DCEBA, EDACB, AEBDC, BACED, CBDAE Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: BCADE
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: CDBEA
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: DECAB
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: EADBC
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: DCEBA
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: EDACB
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: AEBDC
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: BACED
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
Experimental: CBDAE
5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo
|
Drug: ACT-078573 and matching placebo
ACT-078573 oral capsules at 25 and 100 mg and matching placebo 5-period, 5-treatment crossover Where A = 200mg, B = 100 mg, C = 50 mg, D = 25mg, E = Placebo |
- Mean Wake Time After Sleep Onset (WASO) [ Time Frame: 2 treatment nights ]
WASO was the time in minutes scored as wake between the onset of persistent sleep and lights on, where the onset of persistent sleep was the beginning of the first continuous 20 epochs (10 min) scored as non-wake.
Mean values were calculated based on 2 treatment PSG nights. PSG nights identified as non-evaluable due to protocol violation were excluded. If a mean value could not be calculated because the value for 1 PSG night was missing or non-evaluable, the valid value for the other PSG night was used. If during a double-blind treatment period a valid PSG was performed but the WASO was missing (e.g., persistent sleep did not occur), the missing value was substituted with the highest value recorded for the subject during the study (single-blind period included).
- Mean Total Sleep Time (TST) [ Time Frame: 2 treatment nights ]
TST was the amount of actual sleep time measured in minutes scored as non-wake (i.e., sleep stage 1, 2, slow-wave sleep, or rapid eye movement (sleep)).
Mean values were calculated based on 2 treatment PSG nights. PSG nights identified as non-evaluable by protocol violation were excluded. If a mean value could not be calculated because the value for 1 PSG night was missing or non-evaluable, the valid value for the other PSG night was used. If during a double-blind treatment period a valid PSG was performed but the TST was missing (e.g., the subject did not sleep or persistent sleep did not occur), the missing value was substituted with the worst value recorded for the subject during the study (single-blind period included).

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Ages Eligible for Study: | 65 Years and older (Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Elderly subjects (> 64 years) with a diagnosis of primary insomnia.
Exclusion Criteria:
- History of any sleep disorder, or any Diagnostic and Statistical Manual of Mental Disorders IV (DSM-IV) axis I disorder other than primary insomnia.
- Sleep apnea, or restless legs syndrome.
- Daytime napping of more than 1 hour per day.
- Important caffeine consumption, heavy tobacco use, alcohol or drug abuse within 2 years prior to the screening visit.
- Unwillingness to refrain from drugs, over-the-counter or herbal medication having an effect on sleep or behavior.

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): NCT00606593

Principal Investigator: | James K. Walsh, PhD | Sleep Medicine and Research Center |
Responsible Party: | Midnight Pharma, LLC |
ClinicalTrials.gov Identifier: | NCT00606593 |
Other Study ID Numbers: |
AC-057A201 |
First Posted: | February 4, 2008 Key Record Dates |
Results First Posted: | March 11, 2013 |
Last Update Posted: | March 14, 2016 |
Last Verified: | February 2016 |
insomnia elderly sleeplessness |
Sleep Initiation and Maintenance Disorders Sleep Disorders, Intrinsic Dyssomnias |
Sleep Wake Disorders Nervous System Diseases Mental Disorders |