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Showing 1–24 of 344 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Delirium Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

REPOSE Study: Reducing Delirium by Enhancing Postoperative Sleep With Suvorexant

NCT05733286
View directory record Official record
Conditions
Delirium in Old Age
Interventions
Suvorexant 20 mg, Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
65 Years and older
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Not applicable Interventional Results available

Direct Noise Reduction in the Intensive Care Units (ICU) Using Earplugs and Noise Canceling Headphones

NCT01343095
View directory record Official record
Conditions
Delirium, Sleep Fragmentation
Interventions
Foam Earplugs, Noise Canceling Headphones
Device
Lead sponsor
Wake Forest University
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Phase 4 Interventional Results available

Pain, Agitation and Delirium (PAD) Protocol in the Duke CICU

NCT02903407
View directory record Official record
Conditions
Deep Sedation, Ventilators, Mechanical, Critical Illness
Interventions
Midazolam, Propofol, Dexmedetomidine
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Phase 4 Interventional Results available

Olfactory Deficits and Donepezil Treatment in Cognitively Impaired Elderly

NCT01951118
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment, Delirium, Dementia, Amnestic, Cognitive Disorders
Interventions
Donepezil
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
55 Years to 95 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Risk of Oxygen During Cardiac Surgery Trial

NCT02361944
View directory record Official record
Conditions
Cardiac Surgery
Interventions
Oxygen - normoxia, Oxygen - hyperoxia
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Jun 7, 2026, 1:34 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Improve the Patients' Recovery With Family- Caregivers to End Delirium

NCT05118867
View directory record Official record
Conditions
Delirium
Interventions
iPREPARED
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
60 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Role of Absolute Cerebral Oximetry to Prevent Neurocognitive Injury in Elderly Patients Undergoing Cardiac Surgery

NCT00991328
View directory record Official record
Conditions
Post-Operative Delirium, Postoperative Cognitive Dysfunction
Interventions
SctO2 < 60 %.
Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
65 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2016 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Phase 4 Interventional

Namenda to Prevent Post-Operative Delirium

NCT00303433
View directory record Official record
Conditions
Delirium, Post-Operative States
Interventions
Namenda
Drug
Lead sponsor
University of Rochester
Other
Eligibility
50 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Jun 7, 2026, 1:34 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Post Operative Delirium Study

NCT04635774
View directory record Official record
Conditions
Delirium
Interventions
Insulin, Saline
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
65 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Jun 7, 2026, 1:34 PM EDT
Completed No phase listed Observational

MIND-ICU Study: Delirium and Dementia in Veterans Surviving ICU Care

NCT00400062
View directory record Official record
Conditions
Delirium, Aging, Dementia
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
3
States / cities
Nashville, Tennessee • Salt Lake City, Utah • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 18, 2019 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Phase 4 Interventional Results available

Dexmedetomidine (Precedex®) for Severe Alcohol Withdrawal Syndrome (AWS) and Alcohol Withdrawal Delirium (AWD)

NCT01362205
View directory record Official record
Conditions
Alcohol Withdrawal Delirium, Alcohol Withdrawal Associated Autonomic Hyperactivity, Alcohol Withdrawal Hallucinosis, Alcohol Withdrawal-Induced Delirium Tremens
Interventions
Dexmedetomidine, Placebos
Drug
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years to 89 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
7
States / cities
Colorado Springs, Colorado • Denver, Colorado • Lakewood, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Phase 4 Interventional

Donepezil in the Prevention of Post-Operative Cognitive Decline

NCT00182845
View directory record Official record
Conditions
Postoperative Complications, Delirium
Interventions
Donepezil
Drug
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 2, 2008 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Phase 2 Interventional

Cognitive Intervention For Delirium in Dementia

NCT01267682
View directory record Official record
Conditions
Delirium, Dementia
Interventions
Cognitive Stimulation
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
65 Years and older
Enrollment
283 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
9
States / cities
Bellefonte, Pennsylvania • Dallas, Pennsylvania • Harrisburg, Pennsylvania + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trajectory of Recovery in the Elderly

NCT02275026
View directory record Official record
Conditions
Delayed Emergence From Anesthesia, Postoperative Delirium, Postoperative Cognitive Dysfunction
Interventions
Functional magnetic resonance imaging
Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
40 Years to 80 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Jun 7, 2026, 1:34 PM EDT
Completed No phase listed Observational

A Study of the Experience of Music Therapy in Cancer Patients With Delirium

NCT04104217
View directory record Official record
Conditions
Cancer Patients With Delirium
Interventions
Music therapy, Interviews
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Jun 7, 2026, 1:34 PM EDT
Recruiting Phase 2 Interventional

Rivastigmine for Antimuscarinic Delirium

NCT06382649
View directory record Official record
Conditions
Anticholinergic Toxicity
Interventions
Rivastigmine, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
10 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Phase 3 Interventional Results available

Dexmedetomidine as a Rapid Bolus in Children for Emergence Agitation

NCT01528891
View directory record Official record
Conditions
Tonsillectomy
Interventions
Dexmedetomidine, Placebo
Drug · Other
Lead sponsor
Peter Davis
Other
Eligibility
4 Years to 10 Years
Enrollment
418 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 7, 2018 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Not applicable Interventional Results available

Early Cognitive Intervention in Delirium

NCT04740567
View directory record Official record
Conditions
Delirium, Cognitive Decline, Dementia
Interventions
Cognitive Training, Goal Management Training
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
65 Years and older
Enrollment
283 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Jun 7, 2026, 1:34 PM EDT
Active, not recruiting Phase 2 Interventional

The Caffeine, Postoperative Delirium, and Change in Outcomes After Surgery (CAPACHINOS-2) Study

NCT05574400
View directory record Official record
Conditions
Postoperative Delirium, Postoperative Cognitive Dysfunction, Mild Cognitive Impairment
Interventions
Dextrose Water, Caffeine citrate
Drug
Lead sponsor
University of Michigan
Other
Eligibility
70 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Not applicable Interventional

Daytime Bright Light, Circadian Abnormalities, and Delirium in Medical ICU Patients

NCT03684460
View directory record Official record
Conditions
Circadian Rhythm Disorders
Interventions
Daytime Bright Light, Usual Light
Device
Lead sponsor
Yale University
Other
Eligibility
50 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Jun 7, 2026, 1:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Perioperative Cognitive Protection - Cognitive Exercise and Cognitive Reserve (The Neurobics Trial)

NCT02230605
View directory record Official record
Conditions
Delirium
Interventions
Mini-Mental State Examination, Self-Administered Gerocognitive Examination, Geriatric Depression Scale, Charlson Comorbidity Index, Short Form 36 Health Survey, Confusion Assessment Method, Memorial Delirium Assessment Scale, Postoperative Quality of Recovery Scale
Other
Lead sponsor
Ohio State University
Other
Eligibility
60 Years and older
Enrollment
322 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 10, 2019 · Synced Jun 7, 2026, 1:34 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Quetiapine Treatment for Pediatric Delirium

NCT03572257
View directory record Official record
Conditions
Delirium
Interventions
Quetiapine, Placebo
Drug · Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
Up to 21 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 7, 2020 · Synced Jun 7, 2026, 1:34 PM EDT
Terminated Not applicable Interventional Results available

Mitigation of Postoperative Delirium in High-Risk Patients

NCT05777187
View directory record Official record
Conditions
Post-operative Delirium, Decision Support Systems, Clinical, Cognitive Impairment
Interventions
Clinical Decision Support
Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 120 Years
Enrollment
7,412 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Jun 7, 2026, 1:34 PM EDT
Completed No phase listed Observational

Implementation of an Analgesia-sedation Algorithm in the Pediatric ICU to Reduce Benzodiazepine Use

NCT04263662
View directory record Official record
Conditions
Mechanical Ventilation, Sedation
Interventions
Analgesia-Sedation algorithm
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 25 Years
Enrollment
680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 5, 2021 · Synced Jun 7, 2026, 1:34 PM EDT