CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 100 enrolled
Drug / intervention
Suvorexant 20 mg +1 moredrug
Likely dose
Suvorexant 20 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04092894
NCT04092894Phase 4Completed

Effects of the Orexin Receptor Antagonist Suvorexant on Sleep Architecture and Delirium in the Intensive Care Unit: A Multi-Centric Randomized Controlled Trial

Beth Israel Deaconess Medical Center·interventional·Posted Sep 17, 2019·Updated Oct 27, 2025

In Brief

A Phase 4 clinical trial evaluating Suvorexant 20 mg and Placebo oral tablet for Insomnia and 3 related conditions. Completed, enrolled 100 participants across 2 sites.

Detailed Summary

Investigators will evaluate the efficacy of postoperative oral suvorexant treatment on nighttime wakefulness after persistent sleep onset (WASO) among adult cardiac surgical patients recovering in the cardiac intensive care unit (ICU). The study include patients ≥ 60 years old undergoing coronary artery bypass graft surgery (CABG), with or without valve surgery (aortic or mitral). Patients will receive either oral suvorexant or placebo for 7 nights starting the night after extubation. The primary hypothesis is that suvorexant compared with placebo decreases WASO, as measured by a specialized electroencephalogram (EEG), the SedLine monitor, during the first night in the cardiac ICU. Investigators will also assess total sleep time (TST), time to sleep onset (TSO), and postoperative delirium and delirium-free days.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 4CompletedFinished
2020202120222023202420252026
First PostedSep 17, 2019
Enrollment StartFeb 28, 2020
Primary CompletionFeb 26, 2025
Study CompletionJul 1, 2025
TodayJul 2, 2026
Enrollment to primary: 5.0 yearsPosted 6.8 years ago

Interventions

Suvorexant 20 mgdrug

Administration of oral Suvorexant 20 mg

Placebo oral tabletdrug

Administration of oral placebo (same non-identifiable form as active comparator)