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ClinicalTrials.gov public records Last synced Sep 13, 2026, 2:12 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Observational Study Clear all
Completed No phase listed Observational

Observational Study of Subjects Having Routine Recurrence Screening for Bladder Cancer

NCT00903240
View directory record Official record
Conditions
Bladder Cancer Recurrence
Interventions
Not listed
Lead sponsor
Predictive Biosciences
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
20
States / cities
Phoenix, Arizona • Engelwood, Colorado • Daytona Beach, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2011 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Hyponatremia Registry for Patients With Euvolemic and Hypervolemic Hyponatremia

NCT01240668
View directory record Official record
Conditions
Euvolemic Hyponatremia, Hypervolemic Hyponatremia
Interventions
Not listed
Lead sponsor
Otsuka America Pharmaceutical
Industry
Eligibility
18 Years and older
Enrollment
5,028 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
72
States / cities
Azusa, California • Inglewood, California • Los Angeles, California + 58 more
Source: ClinicalTrials.gov public record
Updated May 14, 2015 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

T-SPOT.CMV and T-SPOT.PRT Diagnostic Assays

NCT02382211
View directory record Official record
Conditions
Infection in Solid Organ Transplant Recipients
Interventions
Not listed
Lead sponsor
Oxford Immunotec
Industry
Eligibility
18 Years to 75 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
35
States / cities
Tucson, Arizona • Irvine, California • Loma Linda, California + 30 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Sep 13, 2026, 2:12 PM EDT
Withdrawn No phase listed Observational

Mucopolysaccharidosis Type II Observational

NCT04591834
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
Observational
Other
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
1 Month to 8 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Oakland, California • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 9, 2022 · Synced Sep 13, 2026, 2:12 PM EDT
Recruiting No phase listed Observational

MYLUNG Consortium Part 3: Observational Study

NCT05885698
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Not listed
Lead sponsor
US Oncology Research
Industry
Eligibility
18 Years and older
Enrollment
7,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
17
States / cities
Daphne, Alabama • Prescott Valley, Arizona • Denver, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluating the Safety and Performance Characteristics of Ephemeral® Tattoo Ink in Healthy Subjects

NCT05877833
View directory record Official record
Conditions
Tattoo; Pigmentation
Interventions
Vibrancy Assessment
Other
Lead sponsor
Ephemeral Solutions Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Milford, Connecticut
Source: ClinicalTrials.gov public record
Updated May 29, 2023 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Prospective PuraPly™ AM Case Series Study

NCT03070925
View directory record Official record
Conditions
Pressure Ulcers, Venous Ulcers, Diabetic Ulcers, Surgical Wounds, Trauma Wounds
Interventions
PuraPly™ Antimicrobial Wound Matrix
Device
Lead sponsor
Organogenesis
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Lake Success, New York
Source: ClinicalTrials.gov public record
Updated Aug 30, 2017 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Observational Study of C. Diff in Post-Transplant Patients

NCT02747017
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
4
States / cities
Minneapolis, Minnesota • Rochester, Minnesota • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multisite Observational Maternal and Infant Study for COVID-19

NCT05031468
View directory record Official record
Conditions
COVID-19
Interventions
Licensed or EUA SARS-CoV-2 vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
562 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Atlanta, Georgia • Chicago, Illinois • New York, New York + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 13, 2026, 2:12 PM EDT
Recruiting No phase listed Observational

A Global, Multicenter Study to Assess Maternal, Fetal and Infant Outcomes of Exposure to Palynziq® (Pegvaliase) During Pregnancy and Breastfeeding

NCT05579548
View directory record Official record
Conditions
Phenylketonuria, Maternal
Interventions
Pegvaliase
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
Female only
Enrollment
50 participants
Timeline
2022 – 2032
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Sep 13, 2026, 2:12 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 10, 2021 · Synced Sep 13, 2026, 2:12 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 2, 2015 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Addition of microRNA Blood Test to Lung Cancer Screening Low Dose CT

NCT03452514
View directory record Official record
Conditions
Lung Cancer
Interventions
Not listed
Lead sponsor
Hummingbird Diagnostics
Industry
Eligibility
55 Years to 80 Years
Enrollment
479 participants
Timeline
2017 – 2020
U.S. locations
4
States / cities
Boston, Massachusetts • Burlington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 24, 2021 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Optimal Improvement of Vein Graft Patency Long Term by the Implementation Of Novel Endoscopic Harvesting Techniques

NCT01697176
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Not listed
Lead sponsor
Cardiopulmonary Research Science and Technology Institute
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Dallas, Texas • Plano, Texas
Source: ClinicalTrials.gov public record
Updated Oct 21, 2014 · Synced Sep 13, 2026, 2:12 PM EDT
Recruiting No phase listed Observational

EUS-Guided Ablation (RFA and MWA) for Pancreatic and Other Gastrointestinal Lesions Registry

NCT07625189
View directory record Official record
Conditions
RFA, Microwave Ablation, Pancreatic Lesion, Gastrointestinal Lesions, Ablation Techniques
Interventions
Not listed
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Timeline
2026 – 2028
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Mechanical Ventilation Discontinuation Practices

NCT03955874
View directory record Official record
Conditions
Invasive Mechanical Ventilation, Critical Illness, Spontaneous Breathing Trial, Weaning Invasive Mechanical Ventilation, Tracheostomy, Direct Extubation
Interventions
Not listed
Lead sponsor
Unity Health Toronto
Other
Eligibility
16 Years and older
Enrollment
1,868 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 1, 2021 · Synced Sep 13, 2026, 2:12 PM EDT
Active, not recruiting No phase listed Observational

Advancing Precision Lung Cancer Surveillance and Outcomes in Diverse Populations

NCT07581379
View directory record Official record
Conditions
Lung Neoplasms, Second Primary Lung Cancer (SPLC), Non-Small Cell Lung Cancer (NSCLC), Stage I-IIIA, Lung Cancer (Diagnosis)
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
Not listed
Enrollment
1,826 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

Psychosocial, Behavioral, and Radiologic Changes Following Radiosurgery for Benign Neurologic Disease

NCT04688554
View directory record Official record
Conditions
Obsessive-Compulsive Disorder, Pain, Intractable, Depression
Interventions
fMRI and DTI, Behavioral questionnaires, Disease-Specific Patient-Reported Outcomes, Behavioral tests
Diagnostic Test · Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational Results available

An Observational Study of the Ethnic Impact of Patients Undergoing Second (2nd) Line Treatment for Non-Small Cell Lung Cancer Using Pemetrexed

NCT00497770
View directory record Official record
Conditions
Lung Neoplasms
Interventions
Pemetrexed
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
434 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
37
States / cities
Mobile, Alabama • Glendale, Arizona • Anaheim, California + 34 more
Source: ClinicalTrials.gov public record
Updated May 1, 2012 · Synced Sep 13, 2026, 2:12 PM EDT
Not listed No phase listed Observational

Observational Study to Investigate the Melatonin and Cortisol Circadian Rhythms of Individuals With Smith-Magenis Syndrome (SMS)

NCT02180451
View directory record Official record
Conditions
Smith Magenis Syndrome
Interventions
Not listed
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
6 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 24, 2016 · Synced Sep 13, 2026, 2:12 PM EDT
Completed No phase listed Observational

An Observational Biomarker Study in Multiple Sclerosis (MS) Patients

NCT05663853
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting, Multiple Sclerosis, Primary Progressive, Multiple Sclerosis, Secondary Progressive
Interventions
Not listed
Lead sponsor
LAPIX Therapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
4
States / cities
Baltimore, Maryland • Chevy Chase, Maryland • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 13, 2026, 2:12 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

International Registry and Biorepository for TMA(Thrombotic Microangiopathy)

NCT00593229
View directory record Official record
Conditions
Thrombotic Microangiopathy, Hemolytic Uremic Syndrome, Thrombotic Thrombocytopenic Purpura
Interventions
Not listed
Lead sponsor
Northwell Health
Other
Eligibility
6 Months to 18 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Sep 13, 2026, 2:12 PM EDT
Recruiting No phase listed Observational

Observational Study of Women With Endometrial Cancer Who Receive the Standard Treatment for Their Disease

NCT04291612
View directory record Official record
Conditions
Endometrial Cancer, Endometrioid Adenocarcinoma, Endometrial Cancer Stage I
Interventions
Physical exam
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
1,715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
13
States / cities
Hartford, Connecticut • Miami, Florida • Orlando, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 13, 2026, 2:12 PM EDT