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ClinicalTrials.gov public records Last synced Oct 31, 2026, 5:58 AM EDT

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Showing 385–408 of 872 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Sampling Clear all
Recruiting No phase listed Observational

Diagnostic and Therapeutic Applications of Microarrays in Heart Transplantation

NCT02670408
View directory record Official record
Conditions
Cardiac Transplant Disorder
Interventions
Endomyocardial biopsy
Procedure
Lead sponsor
University of Alberta
Other
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
5
States / cities
Los Angeles, California • Dallas, Texas • Salt Lake City, Utah + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

SpO2 Accuracy Low Saturation Validation of the OxySoftN Sensor

NCT04811963
View directory record Official record
Conditions
Hypoxia, Desaturation of Blood
Interventions
Non-Invasive Controlled Hypoxia
Device
Lead sponsor
Medtronic - MITG
Industry
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Louisville, Colorado
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

Genetic Mutations in Blood and Tissue Samples in Predicting Response to Treatment in Patients With Locally Advanced Rectal Cancer Undergoing Chemoradiation

NCT02132858
View directory record Official record
Conditions
Mucinous Adenocarcinoma of the Rectum, Recurrent Rectal Cancer, Signet Ring Adenocarcinoma of the Rectum, Stage IIA Rectal Cancer, Stage IIB Rectal Cancer, Stage IIC Rectal Cancer, Stage IIIA Rectal Cancer, Stage IIIB Rectal Cancer, Stage IIIC Rectal Cancer
Interventions
cytology specimen collection procedure, laboratory biomarker analysis
Other
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Oct 31, 2026, 5:58 AM EDT
Recruiting Phase 2 Interventional

Study of 18F-FFNP Breast PET/MRI

NCT06086704
View directory record Official record
Conditions
Breast Cancer
Interventions
18F-fluorofuranylnorprogesterone, Positron Emissions Tomography / Magnetic Resonance Imaging, Anastrozole, Blood Sampling, FDA-approved gadolinium-based intravenous contrast agent
Drug · Device · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

Radiation Biodosimetry in Patients Treated With Total Body Irradiation (TBI)

NCT00581958
View directory record Official record
Conditions
Cancer
Interventions
Blood Samples
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
4 Years to 100 Years
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 5, 2018 · Synced Oct 31, 2026, 5:58 AM EDT
Recruiting Not applicable Interventional

Seattle Biopsy Protocol Versus Wide-Area Transepithelial Sampling in Patients With Barrett's Esophagus Undergoing Surveillance

NCT05530343
View directory record Official record
Conditions
Barrett Esophagus, Barretts Esophagus With Dysplasia, Esophageal Adenocarcinoma
Interventions
Seattle protocol, WATS3D brushings
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Enrollment
2,298 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
14
States / cities
Gilbert, Arizona • Los Angeles, California • Oakland, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Profiling During Ocrelizumab Treatment in Multiple Sclerosis

NCT03138525
View directory record Official record
Conditions
Multiple Sclerosis, Healthy
Interventions
Blood sampling (MS), Blood sampling (controls)
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Recovery Study: Symptoms and Biomarkers of Long COVID-19 in People Living With and Without HIV

NCT04958889
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2), HIV
Interventions
No intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
392 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Oct 31, 2026, 5:58 AM EDT
Recruiting No phase listed Observational

Study of Endocrine-Related Conditions and Physiology

NCT03867448
View directory record Official record
Conditions
Endocrine Disease
Interventions
Creation of side holes in catheters for adrenal vein sampling
Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 90 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2036
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Self-Sampling for Human Papillomavirus (HPV) Testing in African American Women - Mississippi Delta

NCT03713710
View directory record Official record
Conditions
Cervical Cancer
Interventions
Pap testing, Choice
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
25 Years to 64 Years · Female only
Enrollment
335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Nov 16, 2022 · Synced Oct 31, 2026, 5:58 AM EDT
Not listed No phase listed Observational

Analysis of Donor Milk

NCT05742815
View directory record Official record
Conditions
Breast Milk Collection, Nutrition Disorder, Infant
Interventions
No intervention
Other
Lead sponsor
Augusta University
Other
Eligibility
Not listed
Enrollment
20 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 24, 2023 · Synced Oct 31, 2026, 5:58 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Longitudinal Oral Microbiome Sampling for BE

NCT05133102
View directory record Official record
Conditions
Barrett Esophagus
Interventions
Sample collection
Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
2
States / cities
Ann Arbor, Michigan • New York, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Phase 2 Interventional Results available

Consultation, Advice, and Tailored Support (CATS) for Cancer Survivors

NCT03316170
View directory record Official record
Conditions
Smoking Cessation, Social Stress
Interventions
Social Support, NRT Sampling
Behavioral · Drug
Lead sponsor
Jessica Burris
Other
Eligibility
18 Years to 75 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Home-Based or Clinic-Based Human Papillomavirus (HPV) Screening

NCT01550783
View directory record Official record
Conditions
Atypical Squamous Cell of Undetermined Significance, Cervical Carcinoma, Cervical Intraepithelial Neoplasia Grade 2/3, Health Status Unknown, Human Papillomavirus Infection, Low Grade Cervical Squamous Intraepithelial Neoplasia, Stage 0 Cervical Cancer
Interventions
Cervical Papanicolaou Test, Cytology Specimen Collection Procedure, Questionnaire Administration, Screening Method
Other · Procedure
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older · Female only
Enrollment
1,335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
2
States / cities
Minneapolis, Minnesota • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 31, 2020 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Rhode Island's Tuberculosis Preventive Services in Primary Care

NCT04188041
View directory record Official record
Conditions
Latent Tuberculosis
Interventions
TB Infection ECHO
Other
Lead sponsor
Kent Hospital, Rhode Island
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Pawtucket, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 19, 2024 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Evaluation of the APTIMA® HPV Assay Using the TIGRIS® System

NCT00973362
View directory record Official record
Conditions
Human Papillomavirus Infection
Interventions
APTIMA HPV Assay, FDA-Approved HPV DNA Test
Device
Lead sponsor
Gen-Probe, Incorporated
Industry
Eligibility
21 Years and older · Female only
Enrollment
12,896 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
17
States / cities
Jonesboro, Arkansas • Canoga Park, California • Los Angeles, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2017 · Synced Oct 31, 2026, 5:58 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

PACE: Prostacyclin AntiCoagulation in ECMO

NCT07837869
View directory record Official record
Conditions
ECMO
Interventions
Dose-escalation study of epoprostenol as adjunct anticoagulation in ECMO
Drug
Lead sponsor
Garrett Keim
Other
Eligibility
0 Days to 17 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

Determinants of Age-Related Treatment Effectiveness in Ovarian Cancer

NCT02973750
View directory record Official record
Conditions
Ovarian Cancer, Fallopian Tube Cancer, Peritoneal Cancer, Ovarian Diseases, Fallopian Tube Diseases, Peritoneal Diseases
Interventions
Baseline Biopsy, Tissue Collection, Blood Draws
Procedure
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study In Healthy Subjects To Evaluate The Changes In The Protein sAPP-Alpha In Cerebrospinal Fluid Following A Single Oral Dose Of PF-04995274

NCT01193062
View directory record Official record
Conditions
Healthy
Interventions
PF-04995274
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Autonomic Failure Patients for RNA Blood Sampling

NCT00742586
View directory record Official record
Conditions
Pure Autonomic Failure, Multiple System Atrophy, Parkinson's Plus Syndromes
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
50 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

Pharmacokinetics of Ch14.18 in Younger Patients With High-Risk Neuroblastoma

NCT01418495
View directory record Official record
Conditions
Localized Resectable Neuroblastoma, Localized Unresectable Neuroblastoma, Neurotoxicity Syndrome, Pain, Regional Neuroblastoma, Stage 4 Neuroblastoma, Stage 4S Neuroblastoma
Interventions
Cytology Specimen Collection Procedure, Pharmacological Study
Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Up to 15 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

T-cell Minimal Residual Disease (MRD) Evaluation Using Flow Cytometric Analysis

NCT01078337
View directory record Official record
Conditions
Leukemia, Lymphocytic, Acute
Interventions
bone marrow aspiration, peripheral blood sampling
Procedure
Lead sponsor
Stanford University
Other
Eligibility
Up to 18 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2010 · Synced Oct 31, 2026, 5:58 AM EDT
Completed No phase listed Observational

Measuring Biomarker Response to AMP-514 in Blood Samples From Patients With Solid Tumors Undergoing Radiotherapy

NCT02153151
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
Cytology specimen, Laboratory biomarker analysis
Other
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 2, 2025 · Synced Oct 31, 2026, 5:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multilevel Intervention Based on Colorectal Cancer (CRC) and Cervical Cancer Self-screening in Rural, Segregated Areas

NCT04471194
View directory record Official record
Conditions
Colorectal Cancer Screening, Cervical Cancer Screening
Interventions
Self-sampling HPV test, Fecal occult blood test
Diagnostic Test
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
50 Years to 65 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Oct 31, 2026, 5:58 AM EDT