Clinical trials: Polymorphism
H. Pylori Infection
TLR 9 (rs352140) Gene Polymorphism in Helicobacter Pylori Infection
study aimed to identify the role of TLR9 (rs352140) gene in suppressing or promoting the inflammation related to H. pylori infection in children.This cross-sectional study was conducted on 50 children with positive H.
- Trial name
- NCT07289451
- Testing
- TLR TLR 9 (rs352140) gene polymorphism
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Benha University
Androgenetic Alopecia
Association of Polymorphisms in the Androgen Receptor Gene and Finasteride Response in Women With Androgenetic Alopecia
Previous studies of finasteride treatment in women with hair loss have failed to show positive results, yet, some women have responded anecdotally.
- Trial name
- NCT01052870
- Testing
- Finasteride
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- HairDx, LLC
DiGeorge Syndrome, 22q11.2 Deletion Syndrome
Examining Genetic Factors That Affect the Severity of 22q11.2 Deletion Syndrome
22q11.2 deletion syndrome is a genetic disorder that can cause heart defects, facial abnormalities, and developmental and learning disabilities. The severity of the disorder can vary widely among people.
- Trial name
- NCT00556530
- Where
- United States
- Volunteers
- 1,000 people
- Sponsor
- Albert Einstein College of Medicine
Sudden Cardiac Arrest, Sudden Arrhythmic Death Syndrome
Hearts in Rhythm Organization (HiRO)National Registry and Bio Bank
The Hearts in Rhythm Organization (HiRO) is a national network of Canadian researchers/clinicians, working towards a better understanding of the rare genetic causes of sudden cardiac death (SCD).
- Conditions
- Sudden Cardiac Arrest, Sudden Arrhythmic Death Syndrome, Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC), Long QT Syndrome (LQTS)
- Trial name
- HiRO (NCT04189822)
- Where
- Canada
- Volunteers
- 10,000 people
- Sponsor
- University of British Columbia
Dental Caries Secondary to Polymorphisms, Polymorphisms in Enamel Encoding Genes
Polymorphisms in ENAM, AMBN, and KLK4 Contribute to DCS.
A Cross-Sectional Study aims to shed light on potential genetic determinants influencing dental caries susceptibility within this demographic and significantly understanding of genetic factors associated with dental caries…
- Trial name
- NCT06343766
- Testing
- DNA collation and genotyping
- Where
- Egypt
- Volunteers
- 204 people, healthy volunteers welcome
- Sponsor
- Amina Fouad Farag
Stuttering
Genetic Factors Related to Stuttering
Stuttering is an abnormality in speech that affects the rhythm of speech. People who stutter know what they wish to say, but at the time are unable to say it because of involuntary repetition, unnecessary lengthening…
- Trial name
- NCT00001602
- Where
- United States
- Volunteers
- 500 people
- Sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)
Drug Toxicity
Cytokines Polymorphisms and Acetaminophen Toxicity
Genotyping assays for polymorphisms in the interleukin 10(IL10)gene and the inducible nitric oxide synthase (iNOS) gene will be performed. Genotypes will be compared to the severity of toxicity following overdose.
- Trial name
- NCT00166608
- Testing
- Blood sampling
- Where
- 7 sites in United States
- Volunteers
- 111 people
- Sponsor
- Arkansas Children's Hospital Research Institute
Covid19
IL- 6 Gene (174G/C) Single Nucleotide Polymorphism as an Indicator of COVID-19 Severity in Egyptian Patients
Although the direct damage from the viruses contributes to the initiation of the disease, the cytokine storm caused by COVID-19 plays a vital role in the development of acute lung injury and adult respiratory distress syndrome.
- Trial name
- NCT04544033
- Testing
- interleuken 6 level measurment, Interleukin-6 Gene-174C detection
- Where
- Egypt
- Volunteers
- 120 people
- Sponsor
- Tanta University
Acute Asthma
Acute Asthma Responsiveness and B2 Adrenergic Receptors Polymorphisms
The hypothesis to be tested is that acutely ill asthmatics who do not resolve their attacks following standard doses of albuterol and require admission to hospital have single nucleotide polymorphisms of their B2 adrenergic…
- Trial name
- NCT01016444
- Where
- United States
- Volunteers
- 311 people
- Sponsor
- MetroHealth Medical Center
Stem Cell Transplantation
Investigating Cytokine Genes of Stem Cell Donors
This study seeks to investigate the factors that may account for the differences in the way a stem cell recipient s immune system works after a transplant.
- Trial name
- NCT00353821
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Prostate Cancer
Exploring Genomic, Proteomic and Dosimetric Determinants of Late Toxicity After Three Dimensional Conformal Radiotherapy (RT) for Prostate Cancer
Prostate cancer is the most common malignancy in males, and radiotherapy is a commonly chosen treatment option for patients with localized disease.
- Trial name
- NCT00122265
- Where
- Canada
- Volunteers
- 83 people
- Sponsor
- AHS Cancer Control Alberta
Diabetes Mellitus, Healthy
Genetic Influence on Susceptibility to Type 1 Diabetes Mellitus
Type 1 diabetes mellitus is an autoimmune disease in which the body's immune cells attack the insulin-producing cells of the pancreas.
- Trial name
- NCT00001985
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Kidney Diseases
Chinese Herb Nephropathy Epidemiology and Association With CYP2D6, CYP2C19, PXR, or MDR1 Polymorphism
1. Chinese herb nephropathy (CHN), a kind of kidney failure caused by Chinese herbs, may be related to the a component called aristolochic acid (AA). 2.
- Trial name
- NCT01503645
- Where
- 2 sites in Taiwan
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Asthma
A Cohort Study of Smoking Prevention and Health Promotion for Middle School Students in Wuhan, China
We propose to add a collection of buccal cells to a school-based cohort of 7th graders in Wuhan, a large industrial city in China.
- Trial name
- NCT00341653
- Where
- China
- Volunteers
- 5,051 people
- Sponsor
- National Institute of Environmental Health Sciences (NIEHS)
Alzheimer's Disease
Effect of REST in the Alzheimer Disease Continuum
The investigators assume that REST gene polymorphism affects REST protein concentration, and REST protein concentration in peripheral blood is related to cognitive function and hippocampus.
- Trial name
- ERADC (NCT03884023)
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Dongzhimen Hospital, Beijing
Developmental Delays
The Relationship Between Arsenic Methylation Capability and Blood Metals in Children With Developmental Delays
The purpose of this study is to explore the relationship between arsenic methylation and blood metals in children with developmental delays and its correlation with health related quality of life.
- Trial name
- NCT02523989
- Testing
- study group
- Where
- Taiwan
- Volunteers
- 137 people, healthy volunteers welcome
- Sponsor
- Taipei Medical University
Autism Spectrum Disorders
Susceptibility Genes in Autism Spectrum Disorders
The main objective of the study is to define, for Autism Spectrum Disorder, the extent of genetic variation in synaptic pathways that may be targeted for therapeutic development.
- Trial name
- NCT02628808
- Where
- 5 sites in France
- Volunteers
- 1,616 people, healthy volunteers welcome
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
Ventricular Arrythmia
China Inherited Ventricular Arrhythmias Registry
This is an observational, prospective, multi-center registry, aiming at building a risk stratification for malignant inherited ventricular arrhythmias, including Brugada syndrome(Brs)、Long QT syndrome(LQTS)、Short QT…
- Trial name
- NCT03880708
- Where
- China
- Volunteers
- 500 people
- Sponsor
- China National Center for Cardiovascular Diseases
Glioma
The Role of Gene Changes in Brain Tumor Formation and Growth
This study will examine tissue from gliomas (a type of brain tumor) removed during surgery for gene mutations, or changes, thought to be involved in tumor formation and growth.
- Trial name
- NCT00059020
- Where
- United States
- Volunteers
- 344 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Metastatic Colorectal Cancer
Evaluation of VEGF Polymorphism as Predictive Factor in Metastatic Colorectal Cancer Treated With Folfiri Plus Bevacizumab
-1498C/T VEGF polymorphism, as suggested by a recent retrospective analysis, seems to have a role in predicting the efficacy of Bevacizumab plus FOLFIRI in first-line treatment of metastatic colorectal cancer patients.
- Trial name
- PROVETTA (NCT01363739)
- Where
- Italy
- Volunteers
- 265 people
- Sponsor
- Azienda Ospedaliero, Universitaria Pisana