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ClinicalTrials.gov public records Last synced Oct 18, 2026, 4:01 PM EDT

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Showing 385–408 of 4,385 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational Study Clear all
Completed No phase listed Observational Results available

A Study to Assess Whether PDE5 Inhibitors Increase the Chance of Triggering the Onset of Acute NAION

NCT00759174
View directory record Official record
Conditions
Optic Neuropathy, Ischemic
Interventions
No intervention
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
45 Years and older · Male only
Enrollment
673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
69
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 57 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational

Observational Study Evaluating the Potential Impact of Procalcitonin Testing on Care of Stemcell Transplant Recipients

NCT02035189
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Not listed
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 95 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Mar 3, 2015 · Synced Oct 18, 2026, 4:01 PM EDT
Active, not recruiting No phase listed Observational

An Observational Registry of Abatacept in Patients With Juvenile Idiopathic Arthritis

NCT01357668
View directory record Official record
Conditions
Juvenile Idiopathic Arthritis
Interventions
Not listed
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
Up to 17 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2029
U.S. locations
3
States / cities
Little Rock, Arkansas • Princeton, New Jersey • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Not listed No phase listed Observational

Improving Management of Emergency Department Patients With Undifferentiated Syncope: Prospective Validation of the Canadian Syncope Risk Score

NCT05538143
View directory record Official record
Conditions
Syncope
Interventions
Comprehensive ED syncope/presyncope management tool
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
16 Years and older
Enrollment
4,000 participants
Timeline
2022 – 2024
U.S. locations
5
States / cities
Oakland, California • Richmond, California • Roseville, California + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Symptoms of Lower Urinary Tract Dysfunction Phenotyping Study

NCT02485808
View directory record Official record
Conditions
Lower Urinary Tract Symptoms
Interventions
None-observational, Magnetic Resonance Imaging (MRI), Multimodal Automated Sensory Testing System, Auditory Sensitivity Test
Other · Procedure
Lead sponsor
Arbor Research Collaborative for Health
Other
Eligibility
18 Years and older
Enrollment
1,879 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
6
States / cities
Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 18, 2026, 4:01 PM EDT
Terminated No phase listed Observational

Xoft® Intraoperative Radiotherapy (IORT) for Patients With Early-Stage Breast Cancer

NCT04088435
View directory record Official record
Conditions
Breast Cancer, Breast Cancer, Invasive Ductal, Invasive Mammary Carcinoma, Breast Cancer Stage I, Breast Cancer Stage IIA
Interventions
Intraoperative radiotherapy
Radiation
Lead sponsor
University of Louisville
Other
Eligibility
50 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated May 12, 2023 · Synced Oct 18, 2026, 4:01 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Partial Sleep Restriction in Chronic Low Back Pain: A Feasibility Study

NCT07008924
View directory record Official record
Conditions
Chronic Low-back Pain, Insomnia, Sleep
Interventions
No intervention is provided. We monitor natural recovery to full sleep.
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
25 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 6, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Recruiting Phase 4 Interventional

Mechanism(s) of Airflow Limitation During Exacerbation of Asthma

NCT01225913
View directory record Official record
Conditions
Asthma
Interventions
fluticasone/salmeterol in all asthmatics, budesonide/formoterol or fluticasone/salmeterol in all asthmatics
Drug
Lead sponsor
Gelb, Arthur F., M.D.
Individual
Eligibility
10 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2027
U.S. locations
1
States / cities
Lakewood, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Oct 18, 2026, 4:01 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Improve Cancer-related Cognitive Impairment

NCT05864274
View directory record Official record
Conditions
Gynecologic Cancer, Chemotherapy Effect, Chemo-brain, Cancer-related Cognitive Difficulties
Interventions
Cognitive training application
Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational Results available

Management of Gastrointestinal and Urogenital (GI/GU) Bleedings in Atrial Fibrillation Patients Using Pradaxa

NCT02022020
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
16
States / cities
Aurora, Colorado • New Britain, Connecticut • Orlando, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Oct 18, 2026, 4:01 PM EDT
Completed Not applicable Interventional Results available

Scoreflex NC - Scoring PTCA Catheter

NCT03763747
View directory record Official record
Conditions
Coronary Artery Disease, Coronary Disease, Myocardial Ischemia, Heart Diseases, Arteriosclerosis, Cardiovascular Diseases
Interventions
Scoreflex NC Scoring PTCA catheter
Device
Lead sponsor
OrbusNeich
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
9
States / cities
Gainesville, Florida • Miami, Florida • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2021 · Synced Oct 18, 2026, 4:01 PM EDT
Recruiting Phase 3 Interventional

Immunotherapy After Surgery for People Who Have No Remaining Cancer Cells After Standard Treatment for Early-Stage Non-Small Cell Lung Cancer, INSIGHT Trial

NCT06498635
View directory record Official record
Conditions
Lung Non-Small Cell Carcinoma, Stage II Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIB Lung Cancer AJCC v8
Interventions
Biospecimen Collection, Computed Tomography, Durvalumab, Patient Observation, Questionnaire Administration
Procedure · Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2039
U.S. locations
280
States / cities
Jonesboro, Arkansas • Beverly Hills, California • Dublin, California + 223 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational

Characterization of Dyschromic Hypertrophic Scar

NCT04619589
View directory record Official record
Conditions
Burn Scar, Hypertrophic Scar, Hyperpigmentation, Hypopigmented Scar
Interventions
Not listed
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 3, 2023 · Synced Oct 18, 2026, 4:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study to Improve Adolescent Bicycling Safety

NCT05265689
View directory record Official record
Conditions
Bicycling, Knowledge, Adolescent, Self Efficacy, Education, Attitudes, Practice, Safety, Behavior
Interventions
Bike Club, Bike Club Plus
Behavioral
Lead sponsor
Cara J. Hamann
Other
Eligibility
9 Years to 12 Years
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Performance Evaluation of Dream OCT: AP Study

NCT07355491
View directory record Official record
Conditions
Glaucoma Patients, Retina Patients, Eyes With Corneal Abnormality, Normal Healthy Eyes
Interventions
This is an observational study only, all patients are imaged on the investigational device
Device
Lead sponsor
Intalight, Inc
Industry
Eligibility
22 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational

Study to Determine if Avonex and Rebif Work Comparably Well in Subjects With Relapsing Multiple Sclerosis

NCT00599274
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Interferon beta-1a
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 50 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
8
States / cities
Los Angeles, California • Walnut Creek, California • Shreveport, Louisiana + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2010 · Synced Oct 18, 2026, 4:01 PM EDT
Recruiting No phase listed Observational

Non-interventional Study of Patients With Transthyretin (ATTR) Amyloidosis

NCT06465810
View directory record Official record
Conditions
Transthyretin Amyloidosis, ATTR-CM, ATTRv-PN, ATTR, ATTR-Mixed, hATTR
Interventions
Treatment of transthyretin (ATTR) amyloidosis in observational study setting
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
1,850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
33
States / cities
La Jolla, California • Los Angeles, California • San Francisco, California + 24 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 18, 2026, 4:01 PM EDT
Not listed No phase listed Observational

Young Breast Cancer Survivors Study

NCT05981716
View directory record Official record
Conditions
Breast Cancer
Interventions
No intervention
Other
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
384 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational Results available

Observational Study for the Evaluation of Long-term Safety of Radium-223 Used for the Treatment of Metastatic Castration Resistant Prostate Cancer

NCT02141438
View directory record Official record
Conditions
Metastatic Castration-resistant Prostate Cancer
Interventions
Radium-223 dichloride (Xofigo, BAY88-8223)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Male only
Enrollment
1,472 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
49
States / cities
Anchorage, Alaska • Scottsdale, Arizona • Daly City, California + 46 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational

Dexmedetomidine as a Sole Premedication for BMT Placement

NCT05903326
View directory record Official record
Conditions
Effect of Drug, Complication of Treatment
Interventions
Dexmedetomidine
Other
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Months to 5 Years
Enrollment
276 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 18, 2023 · Synced Oct 18, 2026, 4:01 PM EDT
Completed No phase listed Observational

Evaluating Clinical Evaluation Tools for Predicting Risk of Complications After Hematopoietic Stem Cell Transplant

NCT05766332
View directory record Official record
Conditions
Hematopoietic and Lymphoid System Neoplasm, Malignant Solid Neoplasm
Interventions
Clinical Evaluation, Electronic Health Record Review
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Therapeutic Effects of Epstein-Barr Virus Immune T-Lymphocytes Derived From a Normal HLA-Compatible Or Partially-Matched Third-Party Donor in the Treatment of EBV Lymphoproliferative Disorders and EBV-Associated Malignancies

NCT01498484
View directory record Official record
Conditions
EBV-induced Lymphomas, EBV-associated Malignancies, Transplant Patients With EBV Viremia at High Risk for Developing a Recurrent EBV Lymphoma
Interventions
EBV-specific T cells (EBV-CTLs)
Biological
Lead sponsor
Atara Biotherapeutics
Industry
Eligibility
Not listed
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 21, 2022 · Synced Oct 18, 2026, 4:01 PM EDT
Completed Not applicable Interventional

Observation of Perioperative Outcomes of Robotic Pancreaticoduodenectomy

NCT04171440
View directory record Official record
Conditions
Pancreaticoduodenectomy
Interventions
robotic pancreaticoduodenectomy
Procedure
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Baltimore, Maryland • Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 18, 2026, 4:01 PM EDT
Recruiting Phase 3 Interventional

A Global Study of Volrustomig (MEDI5752) for Participants With Unresected Locally Advanced Head and Neck Squamous Cell Carcinoma Following Definitive Concurrent Chemoradiotherapy

NCT06129864
View directory record Official record
Conditions
Locally Advanced Head and Neck Squamous Cell Carcinoma
Interventions
volrustomig
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
1,145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
69
States / cities
Birmingham, Alabama • Phoenix, Arizona • Prescott Valley, Arizona + 61 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 18, 2026, 4:01 PM EDT