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ClinicalTrials.gov public records Last synced Sep 12, 2026, 4:51 PM EDT

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Showing 1–24 of 338 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Blood sample collection for research Clear all
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Collecting Blood and Tissue Samples From Family Members of Patients With Pancreatic Diseases, Pancreatic Cancer, and Melanoma

NCT00835133
View directory record Official record
Conditions
Familial Pancreatic Cancer
Interventions
biologic sample preservation procedure, medical chart review, survey administration
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years
Enrollment
1,122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Active, not recruiting Not applicable Interventional

Sensor-Assisted Prevention of Dehydration in Head and Neck Cancer Patients

NCT02253238
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Quality of Life Survey, Health Management Surveys, Monitoring Devices, Symptoms Surveys, Device Usability Survey
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
427 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Analyzing Retinal Microanatomy in ROP

NCT02887157
View directory record Official record
Conditions
Retinopathy of Prematurity, Neurodevelopmental Disorders, Macular Edema
Interventions
Swept Source OCT, Magnetic Resonance Imaging, Scavenged blood collection
Device · Other
Lead sponsor
Duke University
Other
Eligibility
30 Weeks and older
Enrollment
191 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
4
States / cities
Gainesville, Florida • St Louis, Missouri • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2023 · Synced Sep 12, 2026, 4:51 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Biorepository: Indiana Health Study

NCT00741416
View directory record Official record
Conditions
Coronary Artery Disease, Heart Disease, Healthy
Interventions
Not listed
Lead sponsor
Fairbanks Institute
Other
Eligibility
18 Years and older
Enrollment
1,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
14
States / cities
Avon, Indiana • Brownsburg, Indiana • Franklin, Indiana + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2011 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Multi-Cancer Detection Observational Cohort Study

NCT06962995
View directory record Official record
Conditions
Cancer
Interventions
Blood Sample, Surveys
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Phosphatidylethanol and Other Ethanol Consumption Markers

NCT06747364
View directory record Official record
Conditions
Healthy Volunteer, Alcohol Consumption
Interventions
Alcohol (Ethanol)
Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
21 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
2
States / cities
Denton, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2025 · Synced Sep 12, 2026, 4:51 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

FHA: Characterization of Metabolic Status, Brain Circuitry, and Stress-Reactivity

NCT00453219
View directory record Official record
Conditions
Anovulation, FHA, Eumenorrhea, Polycystic Ovary Syndrome
Interventions
Screening evaluation, Meal Response, Blood Collection, Functional MRI, Endocrine Assessment
Procedure · Genetic
Lead sponsor
Emory University
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 29, 2013 · Synced Sep 12, 2026, 4:51 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Blood Collection for Research Related to Certain Diseases Involving Blood Vessels

NCT00047996
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
2
States / cities
Bethesda, Maryland • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Suspended No phase listed Observational

Multiparametric MRI as a Non-Invasive Biomarker of the Tumor Microenviroment

NCT04803084
View directory record Official record
Conditions
Breast Cancer, Triple-negative Breast Cancer
Interventions
Tempus assay, Advanced pathology 1, Advanced pathology 2
Other
Lead sponsor
Laura Kennedy
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Long-Term Follow-Up of Recipient of Gene Transfer Research

NCT01492036
View directory record Official record
Conditions
Retroviridae Infections, Cancer
Interventions
Blood Tests, Questionnaires
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational

The Use of Residual De-identified Specimens and/or Samples From Patients for Clinical Research

NCT06222164
View directory record Official record
Conditions
Hematologic Diseases
Interventions
Not listed
Lead sponsor
Invivoscribe, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 12, 2026, 4:51 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Transforming Research and Clinical Knowledge in Traumatic Brain Injury Epileptogenesis Project (TRACK-TBI EPI)

NCT05823766
View directory record Official record
Conditions
Traumatic Brain Injury, Post-traumatic Epilepsy
Interventions
In-Person Outcome Assessment, 3T Magnetic Resonance Imaging (MRI), Clinical Visit, Blood Draw, EEG, Telephone Outcome Assessment
Behavioral · Procedure
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
9
States / cities
San Francisco, California • Charlestown, Massachusetts • Cincinnati, Ohio + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

LURN: Urinary Urgency Phenotyping Protocol

NCT04557748
View directory record Official record
Conditions
Lower Urinary Tract Symptoms
Interventions
Observational, Observational Controls, Central Sensitization, Physical Activity and Sleep Tracker, Physical Activity and Sleep Tracker Controls, Organ-Based, Qualitative Assessment of Patients with Urinary Urgency
Other
Lead sponsor
Arbor Research Collaborative for Health
Other
Eligibility
18 Years and older
Enrollment
1,030 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
6
States / cities
Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Terminated No phase listed Observational

Intubated ICU Patients

NCT02171091
View directory record Official record
Conditions
Patients Requiring Endotracheal Intubation
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Sep 12, 2026, 4:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

THC Crossover Study

NCT04429568
View directory record Official record
Conditions
THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
Interventions
Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced Sep 12, 2026, 4:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacokinetic Interactions Between Buprenorphine and Kaletra (Lopinavir/Ritonavir)

NCT00571961
View directory record Official record
Conditions
HIV Infections
Interventions
Kaletra (lopinavir/ritonavir), buprenorphine, Clinical evaluations/Blood draws
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 20, 2012 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational

Li-Fraumeni & TP53 (LiFT UP): Understanding and Progress

NCT04541654
View directory record Official record
Conditions
Li-Fraumeni Syndrome, TP53 Gene Mutation, Hereditary Cancer Syndrome, Clonal Hematopoiesis, Mosaicism
Interventions
Data and Specimen Collection
Genetic
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2032
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Study of Human Brain-Gut Axis and Gut Microbiome in Patients With Brain Lesions - Repository for Neuroscience Research

NCT06117930
View directory record Official record
Conditions
Malignant Central Nervous System Neoplasm
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

The HOPE Study: Characterizing Patients With Hepatitis B and C

NCT02995252
View directory record Official record
Conditions
Hepatitis B， Chronic, Hepatitis C
Interventions
Blood draws, Tenofovir Alafenamide, Knowledge Index Questionnaire, Liver transient elastography (FibroScan), Liver Biopsy
Other · Drug · Procedure
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 99 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2034
U.S. locations
2
States / cities
Baltimore, Maryland • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 12, 2026, 4:51 PM EDT
Completed Not applicable Interventional

Validation of a Low-cost Platelet-Rich Plasma (PRP)

NCT06184048
View directory record Official record
Conditions
Platelet-Rich Plasma (PRP), Knee Osteoarthritis (OA)
Interventions
Intra-Articular knee injection of LC-PRP
Procedure
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Sep 12, 2026, 4:51 PM EDT
Completed Phase 4 Interventional

Renal Effects of Hormones/Biomarkers in Transgender PrEP Recipients

NCT04742816
View directory record Official record
Conditions
Transgender, Renal Function, Hormone Replacement Therapy
Interventions
IHX-CL measurements, Iohexol
Diagnostic Test · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 100 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Blood Collection for COM/BSBS

NCT06082661
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Sep 12, 2026, 4:51 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pancreatic Cancer Collaborative Registry

NCT00661882
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
medical chart review, questionnaire administration, study of socioeconomic and demographic variables, biopsy
Other · Procedure
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 100 Years
Enrollment
379 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2013
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Sep 12, 2026, 4:51 PM EDT
Recruiting Phase 2 Interventional

Using E-Nose Technology to Track Treatment Response in People With Non-Small Cell Lung Cancer

NCT07218601
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Breath sample collection, Research blood collection
Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 12, 2026, 4:51 PM EDT