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Study to Assess the Long Term Safety and Tolerability of ACT-541468 (Daridorexant) in Adult and Elderly Subjects Suffering From Difficulties to Sleep

Multi-center, Double-blind, Parallel-group, Randomized, Placebo-controlled, Three Doses, 40-week Extension to Studies ID-078A301 and ID-078A302 to Assess the Long Term Safety and Tolerability of ACT-541468 in Adult and Elderly Subjects With Insomnia Disorder

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03679884
Enrollment
804
Registered
2018-09-21
Start date
2018-10-09
Completion date
2021-02-22
Last updated
2022-03-02

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

Conditions

Insomnia Disorder

Brief summary

Study to assess the long term safety and tolerability of daridorexant in adult and elderly subjects suffering from difficulties to sleep

Interventions

Daridorexant 10 mg film-coated tablets

Daridorexant 25 mg film-coated tablets

Daridorexant 50 mg film-coated tablets

DRUGPlacebo

Matching placebo film-coated tablets

Sponsors

Idorsia Pharmaceuticals Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Intervention model description

Multi-center, double-blind, parallel-group, randomized, placebo-controlled, three doses, 40-week extension study

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Signed informed consent prior to any study-mandated procedure (Visit 1). * Having completed the DB study treatment and the run-out period of ID-078A301 (NCT03545191) or ID-078A302 (NCT03575104). * For woman of childbearing potential, the following is required: * Negative urine pregnancy test (EOT of ID-078A301 or ID-078A302 studies) * Agreement to use the contraception scheme as required by the protocol from Visit 1 up to at least 30 days after EODBT.

Exclusion criteria

* Unstable medical condition, significant medical disorder or acute illness, C-SSRS©, ECG, hematology or biochemistry test results in ID-078A301 and ID-078A302, which in the opinion of the investigator could affect the subject's safety or interfere with the study assessments (Visit 1). * For female subjects: lactating or planning to become pregnant during the duration of the study (Visit 1). * Positive urine drug test (for benzodiazepines, barbiturates, cannabinoids, opiates, amphetamines, or cocaine) or presence of alcohol in exhaled breath as detected by breathalyzer test (EOT of ID-078A301 or ID-078A302 studies if same day as Visit 1 or Visit 1 if within 7 days after EOT).

Design outcomes

Primary

MeasureTime frameDescription
Total no. of Subjects With at Least One TEAETEAEs (AEs that started or worsened during the double-blind study period up to 30 days after double-blind study treatment end date) are reported. Total duration: up to 44 weeks.The primary objective of the study was to assess the long-term safety and tolerability of 10, 25 and 50 mg daridorexant. The total no. of subjects with at least one TEAE is presented here; no statistical analysis was conducted. The full set of safety data is available in the Section Adverse events.

Countries

Belgium, Bulgaria, Canada, Denmark, Finland, France, Germany, Hungary, Poland, South Korea, Spain, Sweden, Switzerland, United States

Participant flow

Recruitment details

Ninety-four sites in 14 countries (Belgium, Bulgaria, Canada, Denmark, Finland, France, Germany, Hungary, South Korea, Poland, Spain, Sweden, Switzerland, and the US) enrolled and randomized subjects.

Pre-assignment details

Subjects assigned to the daridorexant arms in Study ID-078A301 and 302 received the same dose in the ID-078A303 extension study. Subjects assigned to the placebo arm in Study ID-078A301 and 302 were re-randomized to receive either placebo or 25 mg daridorexant in a 1:1 ratio, with treatment allocation stratified by age into 2 categories (\< 65 and ≥ 65 years). Note: Subjects' demographic and baseline characteristics were collected in the respective confirmatory 12-week study (ID-078A301 or 302).

Participants by arm

ArmCount
Daridorexant 10 mg
Film-coated tablets administered orally, once daily in the evening Daridorexant 10 mg: Daridorexant 10 mg tablets
142
Daridorexant 25 mg
Film-coated tablets administered orally, once daily in the evening Daridorexant 25 mg: Daridorexant 25 mg tablets
270
Daridorexant 50 mg
Film-coated tablets administered orally, once daily in the evening Daridorexant 50 mg: Daridorexant 50 mg tablets
137
Placebo
Film-coated tablets administered orally, once daily in the evening Placebo: Daridorexant matching placebo tablets
128
ExPlacebo/Daridorexant 25 mg
Film-coated tablets administered orally, once daily in the evening Daridorexant 25 mg: Daridorexant 25 mg tablets
127
Total804

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event210966
Overall StudyDeath10000
Overall StudyLack of Efficacy1529132910
Overall StudyLost to Follow-up14203
Overall StudyOther12121278
Overall StudyWithdrawal by Subject1223889

Baseline characteristics

CharacteristicDaridorexant 50 mgPlaceboDaridorexant 10 mgExPlacebo/Daridorexant 25 mgTotalDaridorexant 25 mg
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
54 Participants58 Participants62 Participants57 Participants335 Participants104 Participants
Age, Categorical
Between 18 and 65 years
83 Participants70 Participants80 Participants70 Participants469 Participants166 Participants
Age, Continuous56.9 years
STANDARD_DEVIATION 13.6
59.2 years
STANDARD_DEVIATION 12.6
58.6 years
STANDARD_DEVIATION 12.8
56.5 years
STANDARD_DEVIATION 15.5
57.7 years
STANDARD_DEVIATION 13.8
57.6 years
STANDARD_DEVIATION 14.1
Race/Ethnicity, Customized
American Indian or Alaska Native
1 Participants0 Participants2 Participants0 Participants3 Participants0 Participants
Race/Ethnicity, Customized
Asian
0 Participants2 Participants5 Participants5 Participants20 Participants8 Participants
Race/Ethnicity, Customized
Black or African American
15 Participants8 Participants6 Participants7 Participants55 Participants19 Participants
Race/Ethnicity, Customized
Hispanic or Latino
19 Participants10 Participants6 Participants13 Participants81 Participants33 Participants
Race/Ethnicity, Customized
Native Hawaiian or other Pacific Islander
0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
118 Participants118 Participants135 Participants114 Participants722 Participants237 Participants
Race/Ethnicity, Customized
Not permitted as per legislation/regulation
0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants2 Participants0 Participants0 Participants2 Participants0 Participants
Race/Ethnicity, Customized
Unknown
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White
121 Participants115 Participants128 Participants115 Participants722 Participants243 Participants
Sex: Female, Male
Female
98 Participants92 Participants103 Participants83 Participants575 Participants199 Participants
Sex: Female, Male
Male
39 Participants36 Participants39 Participants44 Participants229 Participants71 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
1 / 1421 / 2680 / 1370 / 1280 / 126
other
Total, other adverse events
7 / 14215 / 26812 / 1376 / 12811 / 126
serious
Total, serious adverse events
5 / 14212 / 2687 / 1372 / 1284 / 126

Outcome results

Primary

Total no. of Subjects With at Least One TEAE

The primary objective of the study was to assess the long-term safety and tolerability of 10, 25 and 50 mg daridorexant. The total no. of subjects with at least one TEAE is presented here; no statistical analysis was conducted. The full set of safety data is available in the Section Adverse events.

Time frame: TEAEs (AEs that started or worsened during the double-blind study period up to 30 days after double-blind study treatment end date) are reported. Total duration: up to 44 weeks.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Daridorexant 10 mgTotal no. of Subjects With at Least One TEAE53 Participants
Daridorexant 25 mgTotal no. of Subjects With at Least One TEAE103 Participants
Daridorexant 50 mgTotal no. of Subjects With at Least One TEAE55 Participants
PlaceboTotal no. of Subjects With at Least One TEAE45 Participants
ExPlacebo / Daridorexant 25 mgTotal no. of Subjects With at Least One TEAE48 Participants

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026