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Completed Phase 3 Interventional Results available

Study to Assess the Efficacy and Safety of ACT-541468 (Daridorexant) in Adult and Elderly Subjects With Insomnia Disorder

ClinicalTrials.gov ID: NCT03545191

Public ClinicalTrials.gov record NCT03545191. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 18, 2026, 9:46 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Multi-center, Double-blind, Randomized, Placebo-controlled, Parallel-group, Polysomnography Study to Assess the Efficacy and Safety of ACT-541468 in Adult and Elderly Subjects With Insomnia Disorder

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The main purpose of this study is to assess efficacy and safety of ACT-541468 (daridorexant) in adult and elderly subjects with insomnia disorder. Efficacy will be evaluated on objective and subjective sleep parameters.

Study identification

NCT ID
NCT03545191
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Enrollment
930 participants

Conditions and interventions

Interventions

Drug · Other

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jun 4, 2018 (Actual)
Primary completion
Jan 25, 2020 (Actual)
Completion
Feb 25, 2020 (Actual)
Last update posted
Mar 25, 2022

2018 – 2020

United States locations

U.S. sites
36
U.S. states
21
U.S. cities
36
Facility City State ZIP Site status
Pinnacle Research Group, LLC Anniston Alabama 36207 —
Pulmonary Associates of the Southeast/WCR Birmingham Alabama 35243 —
Preferred Research Partners, Inc Little Rock Arkansas 72211 —
Woodland Research Northwest Rogers Arkansas 72758 —
Marvel Clinical Research Huntington Beach California 92647 —
Long Beach Clinical Trials Long Beach California 90806 —
Artemis Institute for Clinical Research San Diego California 92103 —
PAB Clinical Research Brandon Florida 33511 —
St. Francis Sleep Allergy and Lung Institute Clearwater Florida 33765 —
Innovative Clinical Research, Inc. Hialeah Florida 33012 —
Research Centers of America Hollywood Florida 33024 —
Canvas Clinical Research, LLC Lake Worth Florida 33467 —
BioMed Research Institute Miami Florida 33126 —
Clinical Site Partners, LLC Winter Park Florida 32789 —
LaPorte County Institute for Clinical Research Michigan City Indiana 46360 —
Kentucky Research Group Louisville Kentucky 40218 —
Helene Emsellem, MD Chevy Chase Maryland 20815 —
Infinity Medical Research, Inc. North Dartmouth Massachusetts 02747 —
Barrett Clinic La Vista Nebraska 68128 —
Clinical Research Center of Nevada Las Vegas Nevada 89104 —
Clinilabs NYC New York New York 10019 —
Research Carolina of Huntersville Huntersville North Carolina 28078 —
Coastal Carolina Healthcare New Bern North Carolina 28562 —
CTI Clinical Research Center Cincinnati Ohio 45212 —
Oregon Center for Clinical Investigations,Inc Salem Oregon 97301 —
BTC of Lincoln Lincoln Rhode Island 02865 —
Omega Medical Research Warwick Rhode Island 02886 —
Bogan Sleep Consulting, LLC Columbia South Carolina 29201 —
Coastal Carolina Research Center Mt. Pleasant South Carolina 29464 —
Tri-State Mountain Neurology Johnson City Tennessee 37604 —
Inquest Clinical Research Baytown Texas 77521 —
Sleep Therapy & Research Center San Antonio Texas 78229 —
Aspen Clinical Research Orem Utah 84058 —
Pulmonary Associates of Richmond Richmond Virginia 23225 —
Sleep Disorders Centers of the Mid-Atlantic Vienna Virginia 22182 —
Swedish Medical Center Seattle Washington 98122 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 45 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03545191, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 25, 2022 · Synced Oct 18, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03545191 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →