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ClinicalTrials.gov public records Last synced Oct 17, 2026, 7:14 AM EDT

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Showing 145–168 of 4,385 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Observational study Clear all
Completed No phase listed Observational Accepts healthy volunteers

Evaluate the Change in Iron, Vitamin D, and C-Reactive Protein Level (CRP) in a 12 to 24 Week Period

NCT01328704
View directory record Official record
Conditions
Anemia, Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
Avera McKennan Hospital & University Health Center
Other
Eligibility
30 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Aug 25, 2014 · Synced Oct 17, 2026, 7:14 AM EDT
Enrolling by invitation No phase listed Observational

Sleep Health in Pregnant Women in ENRICH

NCT07216287
View directory record Official record
Conditions
Pregnancy, Sleep
Interventions
No Intervention: Observational Cohort
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Terminated Early Phase 1 Interventional

The Effects of Tasimelteon in Participants With REM Behavior Disorder (RBD)

NCT05922995
View directory record Official record
Conditions
REM Behavior Disorder
Interventions
Tasimelteon
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Oct 17, 2026, 7:14 AM EDT
Recruiting Phase 4 Interventional

Estrogen Supplementation and Bone Health in Women With CF

NCT05704036
View directory record Official record
Conditions
Cystic Fibrosis, Hypoestrogenism
Interventions
Transdermal estrogen, Progesterone
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
0 Years to 100 Years · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Cortisone Shots for Neck Pain

NCT03534531
View directory record Official record
Conditions
Neck Pain, Cervicalgia, Facet Joint Pain
Interventions
Intra-articular cervical zygapophyseal joint injection
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
3
States / cities
Palo Alto, California • Redwood City, California • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Autonomic Nervous System Function Following Bariatric Surgery

NCT00948545
View directory record Official record
Conditions
Bariatric Surgery
Interventions
Observational study - there is no intervention
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years to 60 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Nov 7, 2012 · Synced Oct 17, 2026, 7:14 AM EDT
Active, not recruiting No phase listed Observational

Seizure Control as a New Metric in Assessing Efficacy of Tumor Treatment in Patients With Low Grade Glioma

NCT04553757
View directory record Official record
Conditions
Brain Neoplasm, Low Grade Glioma, Seizure Disorder
Interventions
Survey Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Completed Not applicable Interventional Results available

Assessing Visual Feedback of HR Monitoring in Rehabilitation - Pilot

NCT05273801
View directory record Official record
Conditions
Exercise Therapy, Heart Rate Determination
Interventions
Heart Rate Recording from Multiple Participants, No Visual Feedback, Visual Feedback of Multiple Participant Heart Rates
Device
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 2, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

GRANITE: Airsupra Effectiveness in the Real World

NCT07141277
View directory record Official record
Conditions
Asthma
Interventions
None (Observational study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
4,060 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Completed Phase 3 Interventional

Sleep, Fatigue, and Dexamethosone in Children With Leukemia

NCT00075101
View directory record Official record
Conditions
Leukemia
Interventions
Dexamethosone
Drug
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
5 Years to 21 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2006
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 18, 2008 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pediatric Type 1 Diabetes and Neurocognitive Complications Cohort Study

NCT04135365
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
neurocognitive assessment, neuroimaging assessment
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
6 Years to 11 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 1, 2022 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Genetic Influences on Statin Blood Concentrations in African Americans

NCT01569867
View directory record Official record
Conditions
Hyperlipidemia, Hypercholesterolemia, Dyslipidemia
Interventions
Not listed
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
501 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Oct 17, 2026, 7:14 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Urine Metabolites in the Diagnosis of Disease

NCT06710067
View directory record Official record
Conditions
Colorectal Cancer, Small Intestinal Bacterial Overgrowth Syndrome (SIBO), Crohn Disease, Celiac Disease
Interventions
Not listed
Lead sponsor
Luventix, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
4
States / cities
Encinitas, California • Santa Monica, California • Walnut Creek, California
Source: ClinicalTrials.gov public record
Updated Dec 13, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Terminated No phase listed Observational Results available

NOLA (NeuWave Observational Liver Ablation) Registry

NCT04107766
View directory record Official record
Conditions
Cancer of the Liver, Liver Cancer, Neoplasms, Liver
Interventions
Microwave Ablation
Device
Lead sponsor
Ethicon, Inc.
Industry
Eligibility
22 Years and older
Enrollment
1,254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
14
States / cities
Loma Linda, California • Los Angeles, California • Sacramento, California + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Study Evaluating the Use of MRI on CMS Patients

NCT02513056
View directory record Official record
Conditions
Pacemaker, Implantable Cardioverter Defibrillators
Interventions
MRI
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
872 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 14, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Terminated No phase listed Observational

Long-term Study in US Cystic Fibrosis Patients Receiving Digestive Enzyme Supplements to Assess Narrowing of the Large Intestine Causing Adverse Intestinal Symptoms (Fibrosing Colonopathy)

NCT01652157
View directory record Official record
Conditions
Fibrosing Colonopathy
Interventions
ULTRESA, PANCREAZE, CREON, ZENPEP, other non-sponsor pancreatic enzyme replacement therapy, PERTZYE, No pancreatic enzyme replacement therapy
Biological · Other
Lead sponsor
AbbVie
Industry
Eligibility
0 Months to 99 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
123
States / cities
Birmingham, Alabama • Anchorage, Alaska • Phoenix, Arizona + 102 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Oct 17, 2026, 7:14 AM EDT
Recruiting Phase 4 Interventional

Impact of Bromocriptine on Clinical Outcomes for Peripartum Cardiomyopathy

NCT05180773
View directory record Official record
Conditions
Peripartum Cardiomyopathy, Postpartum
Interventions
Bromocriptine, Placebo, Guideline Directed Medical Therapy for Heart Failure (GDMT), Rivaroxaban, Second Placebo
Drug
Lead sponsor
Dennis M. McNamara, MD, MS
Other
Eligibility
18 Years and older · Female only
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
64
States / cities
Birmingham, Alabama • Tucson, Arizona • La Jolla, California + 51 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Not listed No phase listed Observational

The SLEEPR Study: SLEep Effects on Post-stroke Rehabilitation

NCT05012605
View directory record Official record
Conditions
Stroke, Sleep Wake Disorders, Rehabilitation, Recovery of Function
Interventions
Observation
Other
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Timeline
2021 – 2025
U.S. locations
6
States / cities
Atlanta, Georgia • Kansas City, Kansas • Syracuse, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Terminated No phase listed Observational

A Multi-Centered Trial Evaluating the Role of Vitamin D Metabolism in Non-Small Cell Lung Cancer

NCT01409681
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Not listed
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years to 80 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 31, 2014 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Observational Analysis of the Cause of Leaks When Bowel is Cut and Reconnected

NCT02178228
View directory record Official record
Conditions
Anastomotic Leaks
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
15 Years and older
Enrollment
1,077 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2018 · Synced Oct 17, 2026, 7:14 AM EDT
Not listed Not applicable Interventional

Study of Macroplastique Safety and Effectiveness in the Treatment of Female Stress Urinary Incontinence

NCT01115465
View directory record Official record
Conditions
Stress Urinary Incontinence
Interventions
Macroplastique
Device
Lead sponsor
Uroplasty, Inc
Industry
Eligibility
18 Years and older · Female only
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2022
U.S. locations
19
States / cities
Tucson, Arizona • Irvine, California • Orange, California + 15 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Oct 17, 2026, 7:14 AM EDT
Completed No phase listed Observational

Understanding Immunotherapy Resistance Mechanisms in Advanced Melanoma

NCT02694965
View directory record Official record
Conditions
Melanoma
Interventions
observational
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Oct 17, 2026, 7:14 AM EDT
Recruiting No phase listed Observational

Gynecologic Extramammary Paget's Disease

NCT03564483
View directory record Official record
Conditions
Extramammary Paget's Disease, Extramammary Paget Disease, Paget Disease, Extramammary, Extramammary Paget's Disease of Vulva (Diagnosis), Extramammary Paget's Disease of Vagina (Diagnosis), Extramammary Paget's Disease Vulva Invasive, Extramammary Paget's Disease of Anus (Diagnosis), Extramammary Paget's Disease of Anal Canal (Diagnosis), Extramammary Paget's Disease of Skin
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2050
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 17, 2026, 7:14 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

A Study of Carbon 13-based Deep Labelling of Bone Marrow Cells

NCT07057583
View directory record Official record
Conditions
Monoclonal Gammopathy of Undetermined Significance (MGUS), Non-IgM Monoclonal Gammopathy of Undetermined Significance
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Oct 17, 2026, 7:14 AM EDT