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A Phase 1 Trial to Investigate the Biological Equivalence of 5 × 10 mg Tablets and 2 × 25 mg Tablets of Daridorexant in Healthy Male and Female Japanese Participants

A Single-center, Open-label, Randomized, Crossover Phase 1 Trial to Investigate Bioequivalence Between 5 × 10 mg Tablets and 2 × 25 mg Tablets of Daridorexant in Healthy Male and Female Japanese Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05877222
Enrollment
38
Registered
2023-05-26
Start date
2023-06-23
Completion date
2023-08-04
Last updated
2023-08-16

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

Conditions

Healthy

Brief summary

A Phase 1 trial to investigate bioequivalence between 5 × 10 mg tablets and 2 × 25 mg tablets of daridorexant in healthy male and female Japanese participants

Interventions

Daridorexant will be available as film-coated tablets for oral administration formulated at strengths of 10 mg.

Daridorexant will be available as film-coated tablets for oral administration formulated at strengths of 25 mg.

Sponsors

Idorsia Pharmaceuticals Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Signed informed consent in a language understandable to the participant prior to any trial-mandated procedure. * Healthy male and female participants aged between 18 and 65 years (inclusive) at Screening. * Body mass index of 18.5 to 29.9 kg/m2 (inclusive) at Screening. * Participant must be of native Japanese descent (all parents/grandparents of Japanese descent). * Participant must not have been away from Japan for more than 10 years (at Screening visit). * Participant's lifestyle should not have changed significantly since relocation from Japan.

Exclusion criteria

* Known hypersensitivity to daridorexant, or any of its excipients. * History of narcolepsy or cataplexy. * Clinically relevant findings on the physical examination at Screening. * Clinically relevant findings on 12-lead ECG, recorded after 5 min in a supine position at Screening. * Clinically relevant findings in clinical laboratory tests (hematology and clinical chemistry) at Screening. * Clinically relevant findings in systolic blood pressure, diastolic blood pressure, and pulse rate, measured on either arm, after 5 min in the supine position at Screening. * History of major medical or surgical disorders which, in the opinion of the investigator, are likely to interfere with the absorption, distribution, metabolism, or excretion of the study treatment (appendectomy and herniotomy allowed if performed \> 12 weeks prior to administration of first study treatment, cholecystectomy not allowed). * Any circumstances or conditions, which, in the opinion of the investigator, may affect full participation in the study or compliance with the protocol.

Design outcomes

Primary

MeasureTime frame
CmaxBlood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)
AUC0-tBlood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)

Other

MeasureTime frame
λzBlood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)
TmaxBlood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)
Treatment-emergent AEsFrom study treatment administration up to End-of-Treatment (EOT) (Total duration: up to 46 days)
T1/2Blood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)
AUC0-infBlood samples for PK analysis will be taken at several timepoints from treatment administration on Day 1 to Day 3 of Study periods 1 and 2 (Total duration: up to 4 days)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026