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These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Nov 4, 2026, 4:10 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 217–240 of 250 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Polymorphism Clear all

Conditions: Renal Transplant
Interventions: Not listed
Lead sponsor: National Institutes of Health Clinical Center (CC); NIH
Eligibility: Not listed
Enrollment: 93 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2013
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Cancer, Breast Cancer
Interventions: Not listed
Lead sponsor: National Cancer Institute (NCI); NIH
Eligibility: 18 Years and older
Enrollment: 100 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2008
U.S. locations: 1
States / cities: Washington D.C., District of Columbia

Conditions: Congenital Heart Disease
Interventions: Blood Sample Collection; Other
Lead sponsor: Nationwide Children's Hospital; Other
Eligibility: Not listed
Enrollment: 5,000 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2030
U.S. locations: 1
States / cities: Columbus, Ohio

Conditions: Pain, CYP2D6 Polymorphism
Interventions: CYP2D6, Brief Pain Inventory-Short Form (BPI-SF), M.D. Anderson Symptom Inventory (MDASI), OPRM1; Genetic · Behavioral
Lead sponsor: University of Florida; Other
Eligibility: 18 Years to 120 Years
Enrollment: 63 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2019
U.S. locations: 2
States / cities: Gainesville, Florida • Tampa, Florida

Conditions: Hypertension
Interventions: Eplerenone, placebo; Drug
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 40 Years to 80 Years
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 2
States / cities: St Louis, Missouri • Philadelphia, Pennsylvania

Conditions: Nicotine Dependence
Interventions: Not listed
Lead sponsor: National Institute on Drug Abuse (NIDA); NIH
Eligibility: 18 Years to 64 Years
Enrollment: 92 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2013
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Heart Failure
Interventions: Terbutaline plus Metoprolol or carvedilol; Drug
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 18 Years and older
Enrollment: 25 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2007
U.S. locations: 1
States / cities: Madison, Wisconsin

Conditions: Coronary Artery Disease
Interventions: Not listed
Lead sponsor: Scripps Health; Other
Eligibility: 18 Years and older
Enrollment: 2,000 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2010
U.S. locations: 1
States / cities: La Jolla, California

Conditions: Psychotic Disorders, Depressive Disorder, Depressive Disorder, Major
Interventions: Not listed
Lead sponsor: Stanford University; Other
Eligibility: Not listed
Enrollment: 500 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: Started 2003
U.S. locations: 1
States / cities: Stanford, California

Conditions: Breast Cancer
Interventions: Fine needle aspiration; Procedure
Lead sponsor: Carol Fabian, MD; Other
Eligibility: 18 Years and older · Female only
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2015
U.S. locations: 1
States / cities: Kansas City, Kansas

Conditions: Diabetes Mellitus, Type 2
Interventions: Atenolol; Drug
Lead sponsor: University of Maryland, Baltimore; Other
Eligibility: 21 Years and older
Enrollment: 31 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2014
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Healthy, Pulmonary Fibrosis, Rheumatoid Arthritis
Interventions: Not listed
Lead sponsor: National Heart, Lung, and Blood Institute (NHLBI); NIH
Eligibility: 21 Years and older
Enrollment: 400 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 1999 – 2007
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Gestational Diabetes
Interventions: Exenatide, Buccal/blood Sample Collection; Drug · Genetic
Lead sponsor: Georgetown University; Other
Eligibility: 18 Years to 50 Years · Female only
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2015
U.S. locations: 2
States / cities: Washington D.C., District of Columbia

Conditions: Glioma
Interventions: Not listed
Lead sponsor: National Institute of Neurological Disorders and Stroke (NINDS); NIH
Eligibility: Not listed
Enrollment: 344 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2003 – 2004
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Athletic Performance
Interventions: Biospecimen collection and questionnaires; Other
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 32 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2017
U.S. locations: 1
States / cities: Rochester, Minnesota

Conditions: Schizophrenia
Interventions: Not listed
Lead sponsor: Delwyn D. Miller; Other
Eligibility: 18 Years to 65 Years
Enrollment: 76 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2001 – 2015
U.S. locations: 1
States / cities: Iowa City, Iowa

Conditions: End Stage Renal Disease, ESRD
Interventions: Not listed
Lead sponsor: National Cancer Institute (NCI); NIH
Eligibility: 19 Years and older
Enrollment: 871 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2012
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Lung Transplant, Chronic Allograft Rejection
Interventions: Not listed
Lead sponsor: National Institute of Environmental Health Sciences (NIEHS); NIH
Eligibility: 18 Years to 80 Years
Enrollment: 120 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2007
U.S. locations: 2
States / cities: Durham, North Carolina • Research Triangle Park, North Carolina

Conditions: Hemophilia A
Interventions: Not listed
Lead sponsor: Victor J Marder, M.D.; Other
Eligibility: 2 Years and older · Male only
Enrollment: 55 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2014
U.S. locations: 1
States / cities: Detroit, Michigan

Conditions: Healthy
Interventions: Cranberry juice; Other
Lead sponsor: University of Florida; Other
Eligibility: 21 Years to 65 Years · Female only
Enrollment: 55 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2026
U.S. locations: 1
States / cities: Gainesville, Florida

Conditions: Bone Marrow Diseases
Interventions: Not listed
Lead sponsor: National Heart, Lung, and Blood Institute (NHLBI); NIH
Eligibility: 2 Years to 80 Years
Enrollment: 79 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2007
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Substance-Related Disorders
Interventions: midazolam(drug), digoxin (drug), Bupropion (drug), Methadone (drug); Drug
Lead sponsor: University of Washington; Other
Eligibility: 18 Years to 40 Years
Enrollment: 20 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2007 – 2011
U.S. locations: 1
States / cities: Seattle, Washington

Conditions: Blood Coagulation Disorders
Interventions: Warfarin Dosing; Drug
Lead sponsor: University of Florida; Other
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: Started 2006
U.S. locations: 1
States / cities: Gainesville, Florida

Conditions: Schizophrenia
Interventions: Dextroamphetamine, Placebo; Drug
Lead sponsor: University of California, San Diego; Other
Eligibility: 18 Years to 55 Years
Enrollment: 82 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2020
U.S. locations: 1
States / cities: San Diego, California

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Influence of Genes on Sirolimus Metabolism in Patients With Kidney Transplantation

Role of Gene Variation in Effectiveness of Gleevec Treatment

Genetics of Congenital Heart Disease

Precision Medicine Guided Treatment for Cancer Pain

CLCNKA (Ka Renal Chloride Channel[ClC-Ka]) Polymorphism Effects on Hypertrophy Regression

Nicotine Reinforcement and Smoking-Cue Reactivity: Association With Genetic Polymorphisms

Beta-2 Polymorphisms and Beta Receptor Selectivity

Genotype Information and Functional Testing Study

Genetics of Symptomatology and Treatment Response in Psychotic Major Depression

Protocol for Postmenopausal Women at Increased Risk of Developing Breast Cancer

Examining Genetic Influence on Response to Beta-Blocker Medications in People With Type 2 Diabetes

Identification of Genes Associated With Lung Disease in Patients With Rheumatoid Arthritis

Pilot Study of Exenatide Pharmacokinetics and Pharmacodynamics in Gestational Diabetes

The Role of Gene Changes in Brain Tumor Formation and Growth

Stool Microbiome, Pathogens, and Infectious Agents Among Olympic and Elite Athletes

Relationship Between Neurotransmitter Receptor Polymorphisms, Plasma Concentrations and Clinical Response to Clozapine

Genetic Susceptibility to Cardiovascular Disease in Patients on Kidney Dialysis

Mechanisms of Lung Allograft Rejection

Personalized Prediction of Tolerance and Immunogenicity in Hemophilia

American Cranberries to Prevent UTIs in Susceptible Women

Cytokine Gene Polymorphisms in Bone Marrow Failure

Role of CYP2B6, CYP3A4, and MDR1 in the Metabolic Clearance of Methadone

PRospective Evaluation Comparing Initiation of Warfarin StrategiEs (PRECISE): Pharmacogenetic-guided Versus Usual Care

Pharmacologically-augmented Cognitive Therapies (PACTs) for Schizophrenia.