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ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:38 PM EDT

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

Showing 49–72 of 322 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Confusion Clear all
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 27, 2016 · Synced Oct 20, 2026, 8:38 PM EDT
Not yet recruiting Phase 3 Interventional

Phenobarbital for Agitated Delirium

NCT07548489
View directory record Official record
Conditions
Agitated Delirium, Delirium Confusional State, Delirium in the Intensive Care Unit, Hyperactive Delirium
Interventions
Phenobarbital, Conventional therapy group
Drug
Lead sponsor
Duke University
Other
Eligibility
21 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 20, 2026, 8:38 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Interventions for Postoperative Delirium: Biomarker-3

NCT03124303
View directory record Official record
Conditions
Delirium
Interventions
High Density-Electroencephalogram, Magnetic Resonance Imaging, Blood specimen collection, Pupillometry
Procedure · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
60 Years and older
Enrollment
468 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2029
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Completed Phase 2 Interventional Results available

Study of Efficacy of PEAR-004 in Schizophrenia

NCT03751280
View directory record Official record
Conditions
Schizophrenia
Interventions
PEAR-004, Sham
Device
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
6
States / cities
Garden Grove, California • Oakland, California • Torrance, California + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 5, 2021 · Synced Oct 20, 2026, 8:38 PM EDT
Recruiting Not applicable Interventional

Clinical Trial Protocol: Alzheimer's Dementia Underlying Encephalopathy

NCT07222280
View directory record Official record
Conditions
Alzheimer Dementia, Alzheimer Disease, Delirium Confusional State, Encephalopathy, Cognitive Abnormality
Interventions
Quest AD-Detect blood test
Diagnostic Test
Lead sponsor
Covenant Health, US
Other
Eligibility
60 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
6
States / cities
Crossville, Tennessee • Harriman, Tennessee • Knoxville, Tennessee + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Completed No phase listed Observational

Sleep/Wake Protocol Implementation to Improve Sleep Quality in the ICU

NCT03313115
View directory record Official record
Conditions
Sleep Deprivation, Delirium
Interventions
Sleep/Wake Protocol
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
685 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 25, 2023 · Synced Oct 20, 2026, 8:38 PM EDT
Active, not recruiting No phase listed Observational

Vasopressor SAT Study

NCT03182335
View directory record Official record
Conditions
Low Blood Pressure, Delirium, Critical Illness
Interventions
sedation awakening trial
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 20, 2026, 8:38 PM EDT
Withdrawn No phase listed Observational

Brief Delirium Assessments in Non-Intensive Care Unit (ICU) Patients

NCT01162369
View directory record Official record
Conditions
Delirium
Interventions
Not listed
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
65 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 7, 2018 · Synced Oct 20, 2026, 8:38 PM EDT
Completed No phase listed Observational

Study of Sleep and Delirium in the Intensive Care Unit (ICU)

NCT01280097
View directory record Official record
Conditions
Delirium, Sleep Disorders, Circadian Rhythm
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
45 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2015 · Synced Oct 20, 2026, 8:38 PM EDT
Completed Not applicable Interventional Results available

Clinical Effectiveness of the "PICU Up!" Multifaceted Early Mobility Intervention for Critically Ill Children

NCT04989790
View directory record Official record
Conditions
Child, Intensive Care Unit Acquired Weakness, Critical Illness, Hospital Acquired Pressure Ulcer
Interventions
PICU Up!
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
Not listed
Enrollment
1,470 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
11
States / cities
Madera, California • Orlando, Florida • Louisville, Kentucky + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 20, 2026, 8:38 PM EDT
Completed No phase listed Observational

Delirium in the Emergency Department and Its Extension Into Hospitalization

NCT01651897
View directory record Official record
Conditions
Delirium
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
65 Years and older
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Oct 20, 2026, 8:38 PM EDT
Withdrawn Not applicable Interventional

Hepatic Encephalopathy: Lactulose or Polyethylene Glycol (H.E.L.P.)

NCT01923376
View directory record Official record
Conditions
Hepatic Encephalopathy, HE, Cirrhosis, Altered Mental Status, AMS
Interventions
Lactulose, Polyethylene Glycol 3350
Drug
Lead sponsor
New York Presbyterian Brooklyn Methodist Hospital
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2015 · Synced Oct 20, 2026, 8:38 PM EDT
Completed No phase listed Observational Results available

A Study to Evaluate ICU Simulation Experience in the Cardiothoracic Surgical Population to Reduce Post-operative Delirium

NCT05159648
View directory record Official record
Conditions
Post-Operative Delirium
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Withdrawn Phase 4 Interventional

Decreasing the Incidence of Delirium After Cardiac Surgery

NCT02119806
View directory record Official record
Conditions
C.Surgical Procedure; Cardiac, Delirium
Interventions
Benzodiazepine, Fentanyl, Propofol
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Oct 20, 2026, 8:38 PM EDT
Recruiting Phase 3 Interventional

Sevoflurane/Dexmedetomidine vs. Isoflurane for Pediatric Emergence Delirium

NCT06624592
View directory record Official record
Conditions
Delirium on Emergence
Interventions
Sevoflurane, Isoflurane
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
2 Years to 7 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Completed Not applicable Interventional Results available

A Single Blinded Randomized Controlled Trial Testing the Efficacy of a Pediatric Interactive Relational Agent vs. Standard Preoperative Education

NCT04586569
View directory record Official record
Conditions
Anesthesia, Anesthesia Emergence Delirium, Procedural Anxiety
Interventions
Pediatric Interactive Relational Agent (PIRA)
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
4 Years to 10 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Confusion in the Elderly After Colon Surgery

NCT01623297
View directory record Official record
Conditions
Confusion, Inflammation, Acute Phase Reaction, Surgery, Delirium
Interventions
Not listed
Lead sponsor
New York Hospital Queens
Other
Eligibility
65 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Flushing, New York
Source: ClinicalTrials.gov public record
Updated Jun 19, 2012 · Synced Oct 20, 2026, 8:38 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 23, 2024 · Synced Oct 20, 2026, 8:38 PM EDT
Recruiting Not applicable Interventional

A Multi-Modal Combination Intervention to Promote Cognitive Function in Older Intensive Care Unit Survivors

NCT06411561
View directory record Official record
Conditions
Critical Illness, Delirium, Cognitive Impairment, Cognitive Decline, Alzheimer's Disease, Dementia, Circadian Dysrhythmia, Sleep Disturbance
Interventions
SLEEP + COG, COG, SLEEP, AC
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
60 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 20, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Withdrawn Phase 4 Interventional

Efficacy and Safety of Risperidone and Trazodone Monotherapy and Combination Therapy in Critically Ill Patients With Delirium

NCT02118688
View directory record Official record
Conditions
Delirium, Agitation
Interventions
Risperidone, Trazodone, Placebo
Drug
Lead sponsor
Rochester General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2019 · Synced Oct 20, 2026, 8:38 PM EDT
Withdrawn Phase 4 Interventional

Suvorexant for Insomnia to Prevent Delirium in Hospitalized Cancer Patients

NCT06834386
View directory record Official record
Conditions
Advanced Malignant Solid Neoplasm, Delirium, Hematopoietic and Lymphatic System Neoplasm, Insomnia
Interventions
Best Practice, Electronic Health Record Review, Interview, Questionnaire Administration, Suvorexant
Other · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Oct 20, 2026, 8:38 PM EDT
Completed Phase 3 Interventional

Donepezil and Vitamin E to Prevent Side Effects Caused By Radiation Therapy to the Head in Patients Receiving Treatment for Small Cell Lung Cancer

NCT00006349
View directory record Official record
Conditions
Cognitive/Functional Effects, Delirium, Depression, Lung Cancer, Radiation Toxicity
Interventions
vitamin E, donepezil hydrochloride, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
15
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Peoria, Illinois + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Oct 20, 2026, 8:38 PM EDT
Terminated Phase 3 Interventional Results available

Prevention of Delirium in Inpatients Utilizing Melatonin

NCT02654314
View directory record Official record
Conditions
Delirium
Interventions
Melatonin, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
65 Years and older
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Oct 20, 2026, 8:38 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 12, 2018 · Synced Oct 20, 2026, 8:38 PM EDT