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A phase II study of NPC-15 on difficulty initiating sleep in patients with mild cognitive impairment

A Phase II Study of NPC-15 -Investigation of the Efficacy and Safety of NPC-15 on Difficulty Initiating Sleep in Patients with Mild Cognitive Impairment - NPC-15-11

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071230029
Enrollment
120
Registered
2023-06-25
Start date
2023-07-01
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

Japanese patients with mild cognitive impairment who has difficulty initiating sleep

Interventions

Sponsors

Motomura Tomoko
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) A patient aged from 60 to 84 years at the time of obtaining informed consent. (2) A patient who meets diagnostic criteria for mild cognitive impairment in DSM-5. (3) A patient whose usual averaged sleep onset latency (time to falling asleep from bedtime) of 30 minutes or longer continues for 3 months or longer at the time of informed consent. (4) A patient who is able to visit the hospital as scheduled. (5) A patient is an outpatient. (6) A patient who participates in the study voluntarily, and gives written informed consent.

Exclusion criteria

Exclusion criteria: (1) A patient who has a past history to ingest melatonin including its supplements for more than 1 week. (2) A patient who has a past history of hypersensitivity or allergy to melatonin or ramelteon. (3) A patient who has hepatic dysfunction (AST>100 U/L or ALT>100 U/L). (4) A patient who has received prohibited concomitant medications (including OTC drugs or supplements for melatonin) or has started to receive instructions/therapies for improving sleep within 4 weeks prior to the start of the Screening period, or requires those medications or the start of those during the study period. (5) A patient who has started to receive restricted therapies (cognitive behavioral therapy or bright light therapy) within 4 weeks prior to the start of the Screening period, or is scheduled to start such medications or treatments during the study period. (6) A patient who is not able to refrain from ingesting beverage containing caffeine (up to 3 cans/cups a day) and alcoholic beverage (up to around 180 mL of Japanese sake or equivalent a day) (7) A patient who is scheduled to have stay out overnight during the study period. (8) A patient who needs to drive a car or operate dangerous machinery during the study period. (9) A patient who has participated in a clinical study or post marketing clinical study and received the study drug (including placebo) or participated in a clinical study or post marketing clinical study for medical devices within 4 months prior to the start of the Screening period. (10) A patient who has participated in a clinical investigation involving invasive examinations within 4 months prior to the start of the Screening period. (11) A female patient who is presently pregnant or breast-feeding, or willing to be pregnant and not to consent to contraception between the informed consent and completion of the study. (12) A patient who is receiving fluvoxamine maleate or may receive the drug during the study period. (13) A patient who has a significant disease or findings to be inappropriate to participate in the study according to the opinion of the investigator or sub-investigator.

Design outcomes

Primary

MeasureTime frame
Sleep onset latency based on actigraphy

Secondary

MeasureTime frame
-Sleep parameters on actigraphy (total sleep time, sleep efficiency, number of arousals and wake time after sleep onset) -Grand total score based on MMSE

Contacts

Public ContactTomoko Motomura

Nobelpharma Co., Ltd.

motomura.tomoko@nobelpharma.co.jp+81-3-6670-3810

Outcome results

None listed

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