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Showing 1–24 of 90 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Buccal swab Clear all
Not listed No phase listed Observational Accepts healthy volunteers

A to Z Study Follow-up: Collection of DNA Data From Buccal Swabs

NCT00866151
View directory record Official record
Conditions
Weight Management, Diet Conditions, Dietary Recommendations, Overweight Management, Obesity
Interventions
Not listed
Lead sponsor
Interleukin Genetics, Inc.
Industry
Eligibility
25 Years to 50 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2009 · Synced Sep 22, 2026, 4:32 PM EDT
Completed Not applicable Interventional

Utility of Pharmacogenomic Testing in Patients With Gastrointestinal Disorders

NCT05572593
View directory record Official record
Conditions
Gastrointestinal Diseases
Interventions
Pharmacogenomics (PGx) genetic testing
Genetic
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cutaneous Mastocytosis in Children: Analysis of Somatic and Germline Mutations

NCT02761473
View directory record Official record
Conditions
Urticaria Pigmentosa, Cutaneous Mastocytosis
Interventions
skin biopsy, blood draw
Other
Lead sponsor
University of Minnesota
Other
Eligibility
3 Months to 23 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 19, 2020 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting No phase listed Observational

Patient Derived Preclinical Models

NCT05324553
View directory record Official record
Conditions
Cancer
Interventions
Tissue Collection, Blood Collection, Buccal Swab
Procedure · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional

Understanding the Mechanisms of Clonal and Non-clonal Cytopenia Following CAR-T Therapy for Multiple Myeloma or CD19+ Lymphoproliferative Disorder (LPD)

NCT06630104
View directory record Official record
Conditions
Lymphoproliferative Disorder, Multiple Myeloma
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Electronic Health Record Review, Follow-Up, Genetic Counseling, Genetic Testing
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
7
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Albert Lea, Minnesota + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Enrolling by invitation No phase listed Observational

Serum Auto-Antibodies in Neurological Diseases

NCT00704626
View directory record Official record
Conditions
Multiple Sclerosis, Myasthenia Gravis, Transverse Myelitis
Interventions
Blood Draw, Cheek swab
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2031
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting Phase 2 Interventional

MYELOMATCH: A Screening Study to Assign People With Myeloid Cancer to a Treatment Study or Standard of Care Treatment Within myeloMATCH (MyeloMATCH Screening Trial)

NCT05564390
View directory record Official record
Conditions
Acute Myeloid Leukemia, Acute Myeloid Leukemia Arising From Previous Myelodysplastic/Myeloproliferative Neoplasm, Acute Myeloid Leukemia Post Cytotoxic Therapy, Acute Myeloid Leukemia, Myelodysplasia-Related, Myelodysplastic Syndrome
Interventions
Allogeneic Hematopoietic Stem Cell Transplantation, Azacitidine, Best Practice, Biopsy Procedure, Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Busulfan, Chest Radiography, Computed Tomography, Cytarabine, Daunorubicin Hydrochloride, Decitabine and Cedazuridine, Echocardiography Test, Emavusertib, Enasidenib, Epoetin Alfa, Fludarabine, Gemtuzumab Ozogamicin, Gilteritinib, Liposome-encapsulated Daunorubicin-Cytarabine, Luspatercept, Melphalan, Multigated Acquisition Scan, Mutation Carrier Screening, Olutasidenib, Placebo Administration, Positron Emission Tomography, Total-Body Irradiation, Venetoclax
Procedure · Drug · Other + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
337
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 260 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Parenting Skills Group for Mothers With Postpartum Depression

NCT05772897
View directory record Official record
Conditions
Postpartum Depression
Interventions
Circle of Security Parenting program
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2035
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Sep 22, 2026, 4:32 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Acute Respiratory Infection Consortium

NCT01021098
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
17 Years to 55 Years
Enrollment
2,018 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
5
States / cities
San Diego, California • Bethesda, Maryland • San Antonio, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting No phase listed Observational

Project: Every Child for Younger Patients With Cancer

NCT02402244
View directory record Official record
Conditions
Adrenal Gland Pheochromocytoma, Carcinoma In Situ, Central Nervous System Neoplasm, Childhood Immature Teratoma, Childhood Kidney Neoplasm, Childhood Langerhans Cell Histiocytosis, Childhood Mature Teratoma, Congenital Mesoblastic Nephroma, Desmoid Fibromatosis, Ganglioneuroma, Lymphoproliferative Disorder, Malignant Neoplasm, Malignant Solid Neoplasm, Melanocytic Neoplasm, Myeloproliferative Neoplasm, Neoplasm of Uncertain Malignant Potential, Neuroendocrine Neoplasm, Stromal Neoplasm
Interventions
Cytology Specimen Collection Procedure, Medical Chart Review
Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 25 Years
Enrollment
75,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2030
U.S. locations
246
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 177 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting Phase 2 Interventional

Testing the Addition of an IDH2 Inhibitor, Enasidenib, to Usual Treatment (Cedazuridine-Decitabine) for Higher-Risk Myelodysplastic Syndrome (MDS) With IDH2 Mutation (A MyeloMATCH Treatment Trial)

NCT06577441
View directory record Official record
Conditions
Myelodysplastic Syndrome
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Decitabine and Cedazuridine, Enasidenib
Procedure · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
142
States / cities
Berkeley, California • Irvine, California • Orange, California + 118 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

A Model for Genetic Susceptibility: Melanoma

NCT00591500
View directory record Official record
Conditions
Melanoma, Skin Cancer
Interventions
Questionnaire
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Not listed
Enrollment
4,082 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational

Cancer Detection in Pancreatic Cysts

NCT00222898
View directory record Official record
Conditions
Pancreatic Cyst, Pancreatic Pseudocyst, Pancreatic Neoplasm
Interventions
DNA analysis of pancreatic cyst fluid / buccal swab
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
7
States / cities
Indianapolis, Indiana • Boston, Massachusetts • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2007 · Synced Sep 22, 2026, 4:32 PM EDT
Active, not recruiting No phase listed Observational

AML/MDS Drug Sensitization by in Vivo Chemotherapy Administration

NCT04263181
View directory record Official record
Conditions
Acute Myeloid Leukemia, Myelodysplastic Syndromes
Interventions
Peripheral blood draw, Bone marrow aspirate, Buccal swab
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting No phase listed Observational

Defining the Molecular and Radiologic Phenotype of Progressive RA Interstitial Lung Disease

NCT06397677
View directory record Official record
Conditions
Rheumatoid Arthritis, Interstitial Lung Disease
Interventions
Research Testing Performed (Laboratory), Information Collected as Standard of Care, Research Testing Performed
Genetic · Diagnostic Test · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 90 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2034
U.S. locations
4
States / cities
San Francisco, California • Aurora, Colorado • Kansas City, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Sep 22, 2026, 4:32 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Vitamin K Supplementation Study in Healthy Volunteers (Aim 2B)

NCT04450212
View directory record Official record
Conditions
Vitamin K Status
Interventions
Phase I, Buccal Swab Collection for DNA Isolation, Phase II, Vitamin K (Vitacost) Supplementation
Genetic · Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 18, 2023 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Human Microbiome in Immune-Mediated Diseases

NCT02394964
View directory record Official record
Conditions
Autoimmune
Interventions
Sample Collection
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational

Study Assessing Risk Factors for Abdominal Pain in Children With Inflammatory Bowel Disease

NCT02984059
View directory record Official record
Conditions
Inflammatory Bowel Disease
Interventions
Genomic DNA, RNA analysis, Microbiome, Calprotectin, Pain questionnaires, Anxiety/Depression Questionnaires
Genetic · Other
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
8 Years to 18 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Sep 22, 2026, 4:32 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Donor Alloantigen Reactive Tregs (darTregs) for Calcineurin Inhibitor (CNI) Reduction

NCT02474199
View directory record Official record
Conditions
Liver Transplant Recipient, Living Donor (of the Respective Liver Transplant Recipient)
Interventions
darTregs, Acetaminophen, Diphenhydramine, Immunosuppression (IS) Withdrawal, Study Mandated Procedures
Biological · Drug · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

InAdvance: Surveillance, Prevention, and Interception in a Population at Risk for Cancer

NCT05463796
View directory record Official record
Conditions
Cancer Risk, Cancer Predisposition Syndrome, Hereditary Cancer Prediction, Childhood Cancer Survivors, Adult Cancer Survivors, IARC Carcinogens, Smoking History, Lung Cancer, Ductal/Lobular Carcinoma, Barrett Esophagus, Pancreatic Precursor Lesions, Colonic Dysplasia/Adenomata, Non-Alcoholic Fatty Liver Disease, Non Alcoholic Steatohepatitis, Cirrhosis, High Grade Prostatic Epithelial Neoplasia, High-grade Bladder Urothelial Dysplasia/Carcinoma in Situ, Adenomatous Hyperplasia, High-risk Oral Precancerous Diseases, Melanocytic Lesion, Adult, Hematologic Malignancy, Lung; Node, Serous Tubal Intraepithelial Carcinoma, Endometrial Intraepithelial Neoplasia, Cervical and Endocervical Carcinoma in Situ, Vulvar Intraepithelial Neoplasia, Nephrogenic Rests, Benign Bone Lesions With Risk of Malignant Degeneration, Giant Cell Tumor, Osteochondroma, Spitz Nevus
Interventions
Samples
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Not listed
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2031
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Association of Macular Pigment Optical Density (MPOD) and Genetic Variants in Complement Factor H in Subjects With Choroidal Neovascular (CNV)

NCT01682382
View directory record Official record
Conditions
Age-related Macular Degeneration, Choroidal Neovascular Age-related Macular Degeneration
Interventions
Not listed
Lead sponsor
Sequenom, Inc.
Industry
Eligibility
60 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Encinitas, California
Source: ClinicalTrials.gov public record
Updated Jan 19, 2014 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting No phase listed Observational

Clonal Hematopoiesis Chemotherapy and Radiation Effects Study

NCT07675967
View directory record Official record
Conditions
Lung Cancer (Diagnosis), Osteochondroma, Spitz Nevus, Solid Cancers, Breast Cancer, Gastric (Stomach) Cancer, Colorectal (Colon or Rectal) Cancer, Sarcoma, Ovarian Adenocarcinoma, Uterine Adenocarcinoma, Endometrial Adenocarcinoma, Esophageal Adenocarcinoma, Head and Neck Cancer, Therapy-Related Acute Myeloid Leukemia, Therapy-Related MDS, Clonal Hematopoiesis of Indeterminate Potential (CHIP), Clonal Cytopenia of Undetermined Significance
Interventions
Samples
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2035
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 22, 2026, 4:32 PM EDT
Completed No phase listed Observational

Interindividual Genetic Variability as a Determinant of Chemotherapy Toxicity and Response in Pediatric Bone Marrow Transplantation Patients

NCT00578630
View directory record Official record
Conditions
Neoplasms
Interventions
buccal swabs and obtaining peripheral blood
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Not listed
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 18, 2018 · Synced Sep 22, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Building Resilience at Schools: Emotional and Biological Assessment and Treatment of Traumatic Stress

NCT05701111
View directory record Official record
Conditions
Post Traumatic Stress Disorder, Complex Posttraumatic Stress Disorder, Stress, Burn Out, Mental Health Issue
Interventions
Start with the Heart Students, Start with the Heart Teachers, Cue Centered Therapy Counselors, Cue Centered Therapy Students, iSWAB-DNA
Behavioral · Genetic
Lead sponsor
Stanford University
Other
Eligibility
11 Years to 17 Years
Enrollment
80,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Sep 22, 2026, 4:32 PM EDT