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Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Serology Clear all
Completed Phase 1 Interventional

Folate Receptor in Diagnosing Ovarian Cancer Using Serum Samples From Patients With Newly Diagnosed Pelvic Mass or Previously Diagnosed Ovarian Cancer

NCT02520115
View directory record Official record
Conditions
Adnexal Mass, Borderline Ovarian Epithelial Tumor, Ovarian Clear Cell Tumor, Ovarian Endometrioid Tumor, Ovarian Neoplasm, Ovarian Serous Tumor, Recurrent Ovarian Carcinoma
Interventions
Dexamethasone, Laboratory Biomarker Analysis, Valproic Acid
Drug · Other
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
2
States / cities
Bay City, Michigan • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

HPV in Sinonasal Ca: Retrospective Analysis Association of Human Papilloma Virus (HPV) Serology and Behavioral Risk Factors

NCT04979000
View directory record Official record
Conditions
Sinonasal Carcinoma, HPV-Related Squamous Cell Carcinoma
Interventions
Not listed
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed No phase listed Observational

Change in Antibody Levels Following SARS-CoV-2 (Covid-19) Vaccinations

NCT04944095
View directory record Official record
Conditions
Covid-19, Subjects Vaccinated Against Covid-19
Interventions
Change in SARS-CoV-2 Antibody Levels
Other
Lead sponsor
Dr. Sidney J. Stohs
Other
Eligibility
55 Years and older
Enrollment
10,000 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Southlake, Texas
Source: ClinicalTrials.gov public record
Updated Aug 28, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 4 Interventional Results available

A Study of Serum Folate Levels in Patients Treated With Olaparib

NCT04024254
View directory record Official record
Conditions
Ovarian Cancer, Breast Cancer, Folic Acid Deficiency
Interventions
Folic Acid Tablet
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of Serum Testosterone and Nestorone in Females After Secondary Exposure to Nestorone ® (NES) + Testosterone (T) Combined Gel Applied to Shoulders and Upper Arms in Males

NCT02994602
View directory record Official record
Conditions
Healthy Men, Male Contraception, Healthy Women, Product Transference
Interventions
Nestorone + Testosterone Combination Gel
Drug
Lead sponsor
Kimberly Myer
Other
Eligibility
18 Years to 50 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Torrance, California • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated No phase listed Observational

Serology to COVID-19 for Recording Exposures and Evaluating Needs

NCT04566965
View directory record Official record
Conditions
Covid19, Coronavirus, SARS-CoV Infection
Interventions
SARS-CoV-2
Diagnostic Test
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
232 participants
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 21, 2021 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational

Cross-sectional Study of Vitamin B6 in Parkinson's Disease

NCT07430722
View directory record Official record
Conditions
Parkinson's Disease (PD)
Interventions
Not listed
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Serum Markers for Cardiovascular Risk in Obese Youth and Impact of Lifestyle and Medication Intervention

NCT00139477
View directory record Official record
Conditions
Obesity
Interventions
Metformin, Dietary modification with caloric restriction, Establishment of exercise protocol
Drug · Behavioral
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
7 Years to 18 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2011
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Phase 4 Interventional Results available

An Efficacy and Safety Study of Infliximab Dose Escalation in Pediatric Participants With Inflammatory Bowel Disease

NCT02566889
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
Infliximab
Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
6 Years to 16 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
29
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Serum Testosterone Levels in Non-dosed Females After Secondary Exposure

NCT00998933
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone gel 1.62%
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Miami Gardens, Florida
Source: ClinicalTrials.gov public record
Updated Nov 24, 2009 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Acne Vulgaris Related Microbiology and Serology

NCT04056598
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Study of humoral immunity
Diagnostic Test
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 5, 2021 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Immunogenicity of Gardasil-9 HPV Vaccine in People Living With HIV

NCT05266898
View directory record Official record
Conditions
Papillomavirus Vaccines, Human Immunodeficiency Virus, Papillomavirus Infection, Serology, Cervical Intraepithelial Neoplasia, Anal Intraepithelial Neoplasia, Oral Cavity Infection
Interventions
Human papillomavirus 9-valent vaccine, recombinant, human papillomavirus vaccine, recombinant
Biological
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 17, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

HSS Covid-19 Antibody Serology Among Surgeons & Anesthesiologists

NCT04389294
View directory record Official record
Conditions
COVID
Interventions
SARS-CoV2 serum antibody testing
Diagnostic Test
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
21 Years and older
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sustained Immunity to COVID-19 as Measured by SARS-CoV-2 Serology Assays

NCT04562285
View directory record Official record
Conditions
Covid19
Interventions
Serologic immunoassays to SARS-CoV-2 antibodies
Diagnostic Test
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
829 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Tasso-SST OnDemand Comparator Pilot Study

NCT04713748
View directory record Official record
Conditions
C3PI Study Testing Group
Interventions
Tasso-SST on Demand, Regular Phlebotomy
Device · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional

Efficacy of Serum Bovine Immunoglobulin in Improving Nutritional Status in Advanced COPD

NCT02067377
View directory record Official record
Conditions
Advanced COPD (GOLD Stage 3 or 4) With Cachexia
Interventions
Serum bovine immunoglobulin (SBI) medical food, Placebo (for serum bovine immunoglobulin)
Dietary Supplement
Lead sponsor
Medical University of South Carolina
Other
Eligibility
30 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 1, 2016 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 2 Interventional Results available

Vitamin D in Treating Patients With Prostate Cancer

NCT00524680
View directory record Official record
Conditions
Prostate Cancer
Interventions
cholecalciferol
Dietary Supplement
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 120 Years · Male only
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2015 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Longitudinal COVID-19 Antibody Testing in Indiana University Undergraduate Students

NCT04620798
View directory record Official record
Conditions
SARS-CoV-2, Serology, Students
Interventions
Immediate vs. delayed provision of antibody test results
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 100 Years
Enrollment
1,076 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 30, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Changes in Seroprevalence and Wellness Over Time in Healthcare Workers (CONSERVE-HCW)

NCT04595175
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Not listed
Lead sponsor
Brian Tiffany, MD
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chandler, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Retail COVID-19 Study

NCT06761612
View directory record Official record
Conditions
COVID - 19
Interventions
FDA approved mRNA vaccines
Biological
Lead sponsor
Biomedical Advanced Research and Development Authority
Federal
Eligibility
3 Years and older
Enrollment
2,519 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
20
States / cities
Kissimmee, Florida • Chicago, Illinois • Oak Park, Illinois + 15 more
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Food-Drug Interaction Study of Serum Urate After Oral Inosine

NCT02614469
View directory record Official record
Conditions
Healthy
Interventions
Inosine
Drug
Lead sponsor
Michael Alan Schwarzschild
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Serum Biomarkers to Characterize the Effects of Therapy on Ovarian Reserve in Premenopausal Women With Early-stage Breast Cancer or BRCA Mutations

NCT00823654
View directory record Official record
Conditions
Breast Cancer
Interventions
Blood draw and questionnaires
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
609 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2027
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Phase 2 Interventional

Serum-derived Bovine Immunoglobulin Effect on Mucositis

NCT04239261
View directory record Official record
Conditions
Mucositis
Interventions
SBI, Placebo
Dietary Supplement
Lead sponsor
MercyOne Des Moines Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Des Moines, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 25, 2023 · Synced Jul 22, 2026, 5:02 PM EDT