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An open-label, single-center pilot study to investigate the effect of lemborexant on sleep management in Japanese subjects age 50 years and older with insomnia disorder

An open-label, single-center pilot study to investigate the effect of lemborexant on sleep management in Japanese subjects age 50 years and older with insomnia disorder - FLUID study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs041210024
Enrollment
30
Registered
2021-05-24
Start date
2021-07-02
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

insomnia insomnia

Interventions

5 mg Lemborexant is orally administered immediately before going to bed for 12 weeks. The dose of Lemborexant can be adjusted according to the subject's symptoms, but the dose should not be exceeded 1

Sponsors

Norio Ozaki
Lead Sponsor
Akihiro Fujimoto
Collaborator
Eisai Co., Ltd.
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) able to provide voluntary informed concent 2) aged 50 years or older 3) meets the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition criteria for insomnia disorder 4) 24 or greater of MMSE-J score

Exclusion criteria

Exclusion criteria: 1) with a history of hypersensitivity to Lemborexant 2) with severe hepatic impairment (Child-Pugh classification C) 3) have previously used Lemborexant 4) take sleeping pills within 1 week before obtaining consent 5) have psychiatric disorders that may affect the tests specified in the study protocol 6) have been receiving CPAP therapy or subjects who are diagnosed following diseases by pulse oximeter or electromyogram - obstructive sleep apnea required CPAP treatment - specific sleep disorder except insomnia, such as periodic limb movement disorder or restless legs syndrome 7) have been diagnosed with narcolepsy 8) have been diagnosed with dementia 9) with the clinically significant symptoms or illnesses that affect the safety of the subject or the implementation of this study in the opinion of the investigator - cardiac disorder [subjects with repeatied QT/ QTc over 450ms at the screening (QT interval corrected by Fridericia method: QTcF)] - respiratory disorder (including chronic obstructive pulmonary disease, acute or severe respiratory disorder) - severe liver, digestive or renal (including renal dysfunction) disease - neurological or mental disorders - carcinooma (excluding appropriate treated basal cell carcinoma) withing 5 years or chronic pain 10) brestfeeding or pregnant female 11) disagree to contraception throughout the study period 12) unable to conduct MRI scan 13) unable to use gadolinium contrast media (only subjects who can perform gadolinium tracer) 14) judged to be inappropriate by the principle investigator or the subinvestigator

Design outcomes

Primary

MeasureTime frame
Changes in objective sleep parameters from baseline to week 4 and 12

Secondary

MeasureTime frame
1) Changes in subjective sleep parameters from baseline to week 4 and 12 2) Aassociation between improvement of objective sleep parameters and the ALPS index, at week 12 3) Aassociation between improvement of subjective sleep parameters and the ALPS index, at week 12

Contacts

Public ContactIwamoto Kunihiro

Nagoya University Hospital

iwamoto@med.nagoya-u.ac.jp+81-52-744-2282

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026