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Showing 1–24 of 76 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Post-operative Cognitive Dysfunction Clear all
Withdrawn Phase 2 Interventional

Active Temperature Management After Cardiac Surgery and Its Effect on Postoperative Cognitive Dysfunction

NCT03947671
View directory record Official record
Conditions
Cardiac Surgery, Post-operative Cognitive Dysfunction, Fever
Interventions
Rapr Rounds Hyper/Hypothermia Wraps, Acetaminophen
Device · Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
20 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2024 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of Brain Wave Monitoring During Surgery to Reduce Postoperative Cognitive Dysfunction

NCT04189861
View directory record Official record
Conditions
Postoperative Cognitive Dysfunction
Interventions
Not listed
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
60 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Phase 4 Interventional

Elder Surgery - Functional Recovery Following Beta Blockade

NCT00507663
View directory record Official record
Conditions
Post Operative Cognitive Dysfunction
Interventions
Atenolol
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
65 Years and older
Enrollment
359 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
3
States / cities
Rochester, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 15, 2016 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Phase 3 Interventional Results available

Clinical Trial of Gabapentin to Decrease Postoperative Delirium and Pain

NCT00221338
View directory record Official record
Conditions
Postoperative Delirium, Postoperative Pain, Opioid Use, Hospital Length of Stay
Interventions
Gabapentin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
65 Years and older
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 9, 2020 · Synced Sep 5, 2026, 10:31 AM EDT
Terminated Phase 4 Interventional Results available

Cognitive Protection - Dexmedetomidine and Cognitive Reserve

NCT00455143
View directory record Official record
Conditions
Postoperative Delirium, PD, Postoperative Cognitive Dysfunction, POCD
Interventions
Precedex (Dexmedetomidine), Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
65 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Not applicable Interventional Results available

A Study to Determine if Carbon Dioxide Lavage During Total Knee Surgery Reduces Intraoperative Embolic Events

NCT00736125
View directory record Official record
Conditions
Postoperative Complications, Memory Disorders
Interventions
pulsatile saline lavage, carbon dioxide lavage
Device
Lead sponsor
Kinamed Incorporated
Industry
Eligibility
50 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Phase 2 Interventional Results available

Cardiac Surgery Neuroprotection Study in Elders

NCT01561378
View directory record Official record
Conditions
Post-operative Cognitive Decline, Post-operative Delirium
Interventions
Aspart insulin, Normal saline, Intranasal mucosal atomizer device
Drug · Device
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
65 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Sep 5, 2026, 10:31 AM EDT
Terminated No phase listed Observational

Risk Factors for Complications After Carotid Endarterectomy

NCT03788980
View directory record Official record
Conditions
Postoperative Complications, Postoperative Cognitive Dysfunction
Interventions
Carotid endarterectomy, Mini Mental Status Examination
Procedure · Diagnostic Test
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 5, 2026, 10:31 AM 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 Sep 5, 2026, 10:31 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

CEReBral AutorEgulation in Non-cardiac SuRgery and Relationship to Postoperative DeliriUm State

NCT06133842
View directory record Official record
Conditions
Perioperative/Postoperative Complications, Postoperative Cognitive Dysfunction, Postoperative Delirium, EEG With Periodic Abnormalities, Intraoperative Hypotension, Cerebral Hypoperfusion
Interventions
Intra-op EEG and CO data collection
Diagnostic Test
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
60 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Sedation on Cognitive Performance in the Elderly

NCT03089866
View directory record Official record
Conditions
Postoperative Cognitive Dysfunction
Interventions
Midazolam (0.02mg/kg)
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Preoperative Cognitive Screening in Older Surgical Patients Utility for Predicting Morbidity

NCT02598050
View directory record Official record
Conditions
Cognitive Impairment
Interventions
No Interventions as this is a observational study
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
65 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Modulating ApoE Signalling to Reduce Brain Inflammation, deLirium and postopErative Cognitive Dysfunction

NCT03802396
View directory record Official record
Conditions
Postoperative Delirium, Postoperative Cognitive Dysfunction
Interventions
CN-105, Placebo
Drug
Lead sponsor
Miles Berger, MD PhD
Other
Eligibility
60 Years and older
Enrollment
203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational

Cohort Study of Risk Factors for Postoperative Cognitive Decline

NCT03676738
View directory record Official record
Conditions
Cognitive Decline
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
65 Years to 89 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Sep 5, 2026, 10:31 AM EDT
Not yet recruiting No phase listed Observational

Prospective Observational Multimodal Neuromonitoring During High-Risk Adult Surgery

NCT07577726
View directory record Official record
Conditions
Postoperative Cognitive Complications, Delirium, Perioperative/Postoperative Complications, Brain Injuries, Anesthesia
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 5, 2026, 10:31 AM EDT
Active, not recruiting Not applicable Interventional

COgnitive and Physical Exercise to Improve Outcomes After Surgery (COPE-iOS) Study

NCT04889417
View directory record Official record
Conditions
Cognitive Impairment, Disability Physical, Surgery
Interventions
Comprehensive training program, Active control
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
60 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 5, 2026, 10:31 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Total Intravenous Versus Inhalational Anesthesia- A Geriatric Anesthesia Study

NCT06036095
View directory record Official record
Conditions
Neurocognitive Disorders, Anesthesia, Post-operative Delirium, Post-operative Cognitive Dysfunction
Interventions
Sevoflurane, Propofol
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
70 Years to 110 Years
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 7, 2024 · Synced Sep 5, 2026, 10:31 AM EDT
Recruiting No phase listed Observational

Cognitive Status After Removal of Skull Base Meningioma

NCT04635657
View directory record Official record
Conditions
Meningioma, Skull Base Meningioma, Frontal Meningioma, Temporal Meningioma, Cognitive Impairment, Cognitive Decline, Post-Surgical Cognition
Interventions
Long-term Cognitive testing
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 89 Years
Enrollment
50 participants
Timeline
2019 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 5, 2026, 10:31 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Reversal of General Anesthesia With Methylphenidate

NCT02051452
View directory record Official record
Conditions
Post Operative Cognitive Dysfunction, Emergence From Anesthesia
Interventions
Methylphenidate, Saline
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Sep 5, 2026, 10:31 AM EDT
Not listed No phase listed Observational

Tau/P-Tau and Neurocognitive Outcomes in Children

NCT03511729
View directory record Official record
Conditions
General Anesthetics Toxicity, Postoperative Cognitive Dysfunction, Child Development
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
3 Years to 5 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational Results available

Post-Operative Cognitive Dysfunction in Normal Aging Patients Undergoing Elective Orthopedic Surgery

NCT04267328
View directory record Official record
Conditions
Post Operative Cognitive Dysfunction
Interventions
Elective Orthopedic Surgery
Procedure
Lead sponsor
HealthPartners Institute
Other
Eligibility
50 Years to 90 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 18, 2024 · Synced Sep 5, 2026, 10:31 AM EDT
Recruiting Not applicable Interventional

Effects of Transcutaneous Vagal Nerve Stimulation on Post-Surgical Return to Consciousness, Delirium, and Depression

NCT07610655
View directory record Official record
Conditions
Post Operative Delirium, Cognitive Impairment, Vagus Nerve Stimulation, Depression
Interventions
Transcutaneous vagal nerve stimulation, Sham (No Treatment)
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Preoperative Cognitive Screening in Older Spinal Surgical Patients

NCT02922634
View directory record Official record
Conditions
Cognitive Impairment, Frail Elderly Syndrome
Interventions
Mini Cog
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
70 Years and older
Enrollment
229 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 5, 2026, 10:31 AM EDT
Completed No phase listed Observational

Cognition in Postoperative Total Hip Arthroplasty and Total Hip Resurfacing Patients

NCT01079468
View directory record Official record
Conditions
Cognition
Interventions
Not listed
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 7, 2011 · Synced Sep 5, 2026, 10:31 AM EDT