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ClinicalTrials.gov public records Last synced Oct 3, 2026, 1:35 PM EDT

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

Showing 73–96 of 986 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Blood Sample Draw Clear all
Completed No phase listed Observational Accepts healthy volunteers

COvid-19 LongitUdinal Multiethnic BioImaging Assessment of CARDiovascular Sequelae Registry

NCT04661657
View directory record Official record
Conditions
Covid19, Cardiac Disease, Cardiac Arrhythmia, Myocarditis, Left Ventricular Dysfunction
Interventions
Transthoracic echocardiogram (TTE), Cardiovascular Magnetic Resonance (CMR) Imaging
Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Investigations Regarding B-cell Subsets in Humans

NCT00926692
View directory record Official record
Conditions
Healthy
Interventions
Blood draw
Other
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2015 · Synced Oct 3, 2026, 1:35 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Biomarkers in Friedreich's Ataxia

NCT02497534
View directory record Official record
Conditions
Friedreich's Ataxia
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
6 Years to 70 Years
Enrollment
203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2030
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 23, 2025 · Synced Oct 3, 2026, 1:35 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

HEAD Injury Serum Markers and Multi-modalities for Assessing Response to Trauma

NCT04423198
View directory record Official record
Conditions
Mild Traumatic Brain Injury
Interventions
Cognitive Assessment, Patient Reported Neurological Outcome Assessments, Blood Draw
Behavioral · Procedure
Lead sponsor
BRAINBox Solutions Inc
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
11
States / cities
Kansas City, Kansas • Detroit, Michigan • Rochester, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2021 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Not applicable Interventional

Lipoprotein(a) in Patients With Cardiovascular Disease (CVD)

NCT03887520
View directory record Official record
Conditions
Cardiovascular Disease and Lipoprotein(a)
Interventions
Blood draw for Lp(a)
Diagnostic Test
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
49,001 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
180
States / cities
Andalusia, Alabama • Birmingham, Alabama • Huntsville, Alabama + 150 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2022 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Sleep Intervention to Improve Outcomes Among Women at High Risk of Breast Cancer

NCT02613923
View directory record Official record
Conditions
Breast Cancer, Sleep
Interventions
GO! To Sleep, Sleep information, Blood Draw, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), SF-12 quality of life survey
Behavioral · Procedure · Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
21 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 9, 2019 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Studying Pathways of Resistance in KRAS-driven Cancers

NCT05272423
View directory record Official record
Conditions
KRAS P.G12C
Interventions
FoundationOne® Liquid CDx
Diagnostic Test
Lead sponsor
Addario Lung Cancer Medical Institute
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Circulating Tumor Cells in Operative Blood

NCT02150746
View directory record Official record
Conditions
Carcinoma, Pancreatic Ductal
Interventions
Peripheral/Central Venous Blood Draw, Peritoneal Wash
Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 85 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 23, 2016 · Synced Oct 3, 2026, 1:35 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

IPSC Repository of Pediatric Cardiovascular Disease

NCT05550324
View directory record Official record
Conditions
Congenital Heart Disease, Heart Diseases
Interventions
Blood draw
Procedure
Lead sponsor
Mingtao Zhao
Other
Eligibility
Not listed
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Genetic and Environmental Determinants That Control Metabolism in Pulmonary Hypertension

NCT02594917
View directory record Official record
Conditions
Iron-sulfur Cluster Deficiency, Pulmonary Hypertension, Friedreich Ataxia
Interventions
Right Heart Catheterization, Blood draw
Procedure · Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 22, 2023 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Rolandic Epilepsy Genomewide Association International Study

NCT03547050
View directory record Official record
Conditions
Rolandic Epilepsy
Interventions
Blood draw, Existing samples
Other
Lead sponsor
King's College London
Other
Eligibility
6 Years to 25 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
3
States / cities
New York, New York • Providence, Rhode Island • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Phase 2 Interventional

A Pilot Study of "OncozeneTM" Microspheres for Intra-arterial Delivery of Doxorubicin

NCT02141906
View directory record Official record
Conditions
Hepatocellular Cancer
Interventions
Oncozene-DEB-TACE
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Exogenous Ketones on Indices of Keto-Adaptation in Obese Subjects on Weight Reducing Diets.

NCT06449287
View directory record Official record
Conditions
Ketogenic Diet, Weight Loss
Interventions
Diet, Blood Draw, Ketone/Glucose Monitoring, Body Composition, Urine Analysis, Neuropsychological Measures - ANAM
Other · Biological · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Not applicable Interventional Results available

A Comparison of the Detection of Hypoventilation During Deep Sedation Utilizing Nasal End Title CO@ Versus Transcutaneous CO2 Measurement Techniques

NCT00954733
View directory record Official record
Conditions
Surgery, Hypoventilation
Interventions
Arterial blood draw
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 3, 2026, 1:35 PM EDT
Recruiting No phase listed Observational

Biomarkers of Resiliency In Childhood Cancer Surgery

NCT06674811
View directory record Official record
Conditions
Pediatric Cancer, Neuroblastoma, Sarcoma, Wilms Tumor and Other Childhood Kidney Tumors, Childhood Soft Tissue Sarcoma, Childhood Bone Sarcoma, Childhood Malignant Intestinal Neoplasm, Childhood Malignant Liver Neoplasm, Childhood Malignant Lung Neoplasm, Childhood Malignant Ovarian Neoplasm, Childhood Malignant Pleural Neoplasm, Childhood Neuroblastic Tumor, Childhood Sarcoma
Interventions
Wearing Smartwatch, Patient Report Outcomes, Blood Draw, Clinical Data Review
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
3 Years to 25 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate Pneumococcal Polysaccharide Vaccine Effectiveness in Children With Type 1 Diabetes

NCT04481243
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Pneumovax 23- pneumococcal polysaccharide, Blood draw
Biological · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
3 Years to 18 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Cardiovascular Disease Protection Tissue

NCT02348515
View directory record Official record
Conditions
Myocardial Ischemia
Interventions
Heart failure or coronary disease, Heart transplant patients, Orthotopic Heart Transplant Patients, Heart Surgery Patients, Blood Draw
Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 27, 2018 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational Results available

Serum Concentration of Lidocaine After Local Injection During Mohs Micrographic Surgery

NCT00793169
View directory record Official record
Conditions
Basal Cell Carcinoma, Squamous Cell Carcinoma
Interventions
Blood Draw
Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 6, 2021 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Development Of A Blood Test To Improve The Performance Of Breast Cancer Screening

NCT03372902
View directory record Official record
Conditions
Breast Cancer, Breast Benign
Interventions
Breast MRI, Breast Mammogram, Blood draw, Breast Biopsy, online participant reported questionnaire
Device · Other · Procedure + 1 more
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
628 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
7
States / cities
Hartford, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2025 · Synced Oct 3, 2026, 1:35 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Antioxidant Bioavailability

NCT04463030
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Liposomal vitamin C, 1 gram, Liposomal vitamin C, 2 grams, Liposomal vitamin C, 5 grams, Placebo
Dietary Supplement
Lead sponsor
Natural Immune Systems Inc
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Klamath Falls, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating the Effect of Food on the Pharmacokinetics of Palovarotene and the Effect of Palovarotene on the Pharmacokinetics of the CYP3A4 Substrate Midazolam in Two Cohorts of Healthy Adult Subjects

NCT04829773
View directory record Official record
Conditions
Fibrodysplasia Ossificans Progressiva
Interventions
Palovarotene, midazolam
Drug
Lead sponsor
Clementia Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 2, 2021 · Synced Oct 3, 2026, 1:35 PM EDT
Completed No phase listed Observational

Cellular Pharmacology and Platelet Effects of Abacavir and Lamivudine Anabolites

NCT04301661
View directory record Official record
Conditions
HIV-1-infection
Interventions
Blood collection, Abacavir/lamivudine, Tenofovir alafenamide/emtricitabine, Switch
Other · Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 99 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 9, 2023 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Phase 2 Interventional Results available

ADI-PEG 20 in Combination With Gemcitabine and Docetaxel for the Treatment of Soft Tissue Sarcoma, Osteosarcoma, Ewing's Sarcoma, and Small Cell Lung Cancer

NCT03449901
View directory record Official record
Conditions
Soft Tissue Sarcoma
Interventions
pegylated arginine deiminase, Gemcitabine, Docetaxel, Tumor biopsy, Research blood draw
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
10 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
4
States / cities
Palo Alto, California • Santa Monica, California • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Oct 3, 2026, 1:35 PM EDT
Completed Not applicable Interventional

Neurocognitive and Neuroimaging Outcomes in Older Patients With Multiple Myeloma Treated With Autologous Stem Cell Transplantation

NCT03508765
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Structural Image, Functional Image, Digit Span subtest, Brief Test of Attention, Trail Making Test (Parts A & B), Auditory Consonant Trigrams Test, Controlled Oral Word Association Test, Hopkins Verbal Learning Test-Revised, The Center for Epidemiological Study-Depression, The Functional Assessment of Chronic Illness Therapy-Fatigue Subscale, Version 4, Blood draw
Diagnostic Test · Behavioral · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
60 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
2
States / cities
New Brunswick, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 8, 2024 · Synced Oct 3, 2026, 1:35 PM EDT