Clinical trials: Gene Polymorphism
Gastric Adenocarcinoma, Helicobacter Pylori
Prospective Gastric Cancer Screening Using Helicobacter Pylori High-Risk Single Nucleotide Polymorphism Detection
This is a prospective study designed to compare the performance of fecal H. pylori gastric cancer susceptibility analysis and the gastric cancer risk questionnaire for the early detection of gastric cancer.
- Trial name
- NCT06943781
- Testing
- Fecal Helicobacter pylori gastric cancer susceptibility gene test
- Where
- China
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Fudan University
Healthy
Determinants of Warfarin Metabolism
The anticoagulant effect of warfarin varies greatly among individuals. Some of this variability is attributed to differences in the activity of CYP2C9, the predominant enzyme involved in the metabolism of S-warfarin.
- Trial name
- NCT00162474
- Testing
- Warfarin, Phenytoin, Losartan & Hydrochlorothiazide
- Where
- Israel
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Hadassah Medical Organization
Major Depression
Treatment-Resistant Depression, Hippocampus Atrophy and Serotonin Genetic Polymorphism
Reduction of volume of the hippocampus has been associated with major depression in many studies. It has been suggested that antidepressants may protect against hippocampus volume loss in humans associated with multiple episodes…
- Trial name
- NCT00704860
- Testing
- Open label pharmacotherapy
- Where
- Canada
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- University of Ottawa
CYP1A2 Polymorphism, Caffeine and Resistance Training
Caffeine, CYPA12 and Resistance Training
Introduction: Several studies have evaluated and confirmed the ergogenic effect of acute caffeine intake on sports performance, specifically on strength and power performance.
- Trial name
- NCT06610123
- Testing
- Caffeine and Resistance training
- Where
- Spain
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Alcala
Pharmacokinetics
Pharmacokinetic and Pharmacodynamic Effects of Escitalopram Depending on Genetic Polymorphisms of the ABCB1-gene
The ABCB1-gene product P-glycoprotein is an integral membrane protein that actively transports substrates out of the intracellular compartment. One of the major sites of its action is the blood-brain-barrier.
- Trial name
- NCT00550485
- Testing
- escitalopram
- Where
- Germany
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- Max-Planck-Institute of Psychiatry
Lumbar Disc Degeneration, Low Back Pain
Interleukin-1β (rs 1143627 T/C) Gene Polymorphism May Increase the Risk of Developing LDD in Turkish Population
This study aims to show the association between the Interleukin-1β (rs 1143627 T/C) gene polymorphism and the patient's pain level, radiological features, functional disability, and spinal flexibility.
- Conditions
- Lumbar Disc Degeneration, Low Back Pain, Inflammation
- Trial name
- NCT05601739
- Where
- Turkey (Türkiye)
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Yeditepe University
Generalized Adult Periodontitis
Serological Evaluation of 77A/G and 11A/12A Gene of MMP-13 in Periodontitis Affected and Healthy Individuals
50 periodontitis 50 healthy individuals serological evaluation will done to see association of 77A/G AND 11A/12A gene polymorphisms of MMP-13
- Trial name
- SEGPPAH (NCT02423304)
- Testing
- blood samples collected from all patients
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Panineeya Mahavidyalaya Institute of Dental Sciences & Research Centre
Tuberculosis
Soy, Catfish, Anchovy, and Rice Supplementation Increases 25(OH)D Serum Levels in Tuberculosis Patients With Complications
Tuberculosis patients that have complications (e.g., diabetes mellitus and human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS)) who live in tropical regions experience vitamin D deficiency, especially in…
- Trial name
- NCT04613258
- Testing
- SCAR Porridge, Counseling
- Where
- Indonesia
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Universitas Sumatera Utara
Parkinson's Disease
Genetic Polymorphism and Parkinson's Disease in Taiwanese
To observe and analyze the correlation between Single Nucleotide polymorphisms (SNPs) and the incidence of Parkinson's disease in Taiwanese.
- Trial name
- NCT01996878
- Where
- Taiwan
- Volunteers
- 334 people, healthy volunteers welcome
- Sponsor
- Changhua Christian Hospital
Top-level Athletes
Genetic Polymorphism and Israeli Top-level Athletes
It is still unknown whether different genetic elements play a role in athletes' ability to create their area of specificity.In a study conducted in our laboratory few years ago, we genotyped 22 genes in 2 athletic groups…
- Trial name
- NCT01319071
- Testing
- Blood sample
- Where
- Israel
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Colitis, Ulcerative
The Associations of Microribonucleic Acid Gene Polymorphisms With the Risk of Ulcerative Colitis
From January 2020 to December 2024, diagnosed ulcerative colitis(UC) patients and gender- and age-matched normal controls were enrolled from the Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical…
- Trial name
- NCT06873711
- Testing
- vedolizumab
- Where
- China
- Volunteers
- 926 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Lung Cancer
The Correlation Between Lung Cancer Susceptibility, Drug Response and Genetic Polymorphism
Lung cancer is the leading cause of cancer deaths in Taiwan. The carcinogen in the environment is a key role in the development of lung cancer, and one of its main resource is tobacco.
- Trial name
- NCT01280448
- Where
- Taiwan
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Taipei Medical University WanFang Hospital
COVID-19 Respiratory Infection
Gene Polymorphism of IL17 and IL 23
rates are in such considerable amount among large population base. The pathogenesis of COVID-19 implicates a potent inflammatory response, involving a complex group of mediators including interleukins.
- Trial name
- COVID 19IL17 (NCT04948515)
- Testing
- laboratory test
- Where
- Egypt
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Sohag University
Bladder Cancer, Colorectal Cancer
The Molecular Predisposition to Hereditary Nonpolyposis Colon Cancer (HNPCC)
The goal of this study is to understand factors which may influence risk for colorectal and other cancers in families. These factors include genetic variability, in combination with diet and lifestyle.
- Conditions
- Bladder Cancer, Colorectal Cancer, Endometrial Cancer, Kidney Cancer
- Trial name
- NCT01447199
- Testing
- Health and Diet Questionnaire
- Where
- United States
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- M.D. Anderson Cancer Center
Periodontitis, Chronic Periodontitis (Disorder)
Cofilin-2 (rs80358250) and Lactoferrin (rs1126478) Polymorphism and Protein Levels With Non Surgical Periodontal Therapy in Periodontitis Patients With and Without CHD
Periodontitis is a chronic multifactorial inflammatory disease associated with the accumulation of dental plaque and characterized by progressive destruction of the teeth-supporting apparatus, including the periodontal ligament…
- Conditions
- Periodontitis, Chronic Periodontitis (Disorder), Coronary Heart Disease
- Trial name
- NCT07353606
- Testing
- Scaling and root planing
- Where
- 2 sites in India
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Meenakshi Ammal Dental College and Hospital
Infertility
Study of Gene Associations and Infertility
The purpose of this this study is to use DNA screening strategies to identify genes and localize genomic regions that are differentially expressed in patients with infertility to further understand the genetic basis for…
- Trial name
- NCT01223092
- Where
- United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Reproductive Medicine Associates of New Jersey
Schizophrenia, Chinese Han People
Mutation Screening and Translocation Detection of DISC1 Gene in Schizophrenia
Several chromosomal loci obtained from genetic linkage studies have been reported of relating to schizophrenia. These areas include of 1q32-41, 6p24-21, 8p22-21, 15q13-14, and 22q11-12.
- Trial name
- NCT00155818
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Helicobacter Pylori Infection
Community-based Helicobacter Pylori Eradication
Based on a universal eradication of H. pylori in an offshore island (Matsu) with a high prevalence of gastric cancer as well as premalignant gastric lesion, we first examined the infection rate of H. pylori.
- Trial name
- NCT00155389
- Testing
- Helicobacter pylori eradication
- Where
- 2 sites in Taiwan
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Healthy, Pulmonary Fibrosis
Identification of Genes Associated With Lung Disease in Patients With Rheumatoid Arthritis
Pulmonary fibrosis (PF) is a condition in which the lungs of a patient become scarred and fibrous. It has been known to occur in as many as 40% of patients diagnosed with rheumatoid arthritis (RA).
- Conditions
- Healthy, Pulmonary Fibrosis, Rheumatoid Arthritis
- Trial name
- NCT00001885
- Where
- United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Gout, Hyperuricemia
Research and Development of a New Technology for Detection of Abnormal Excretion of Intestinal Uric Acid Involved in the Incidence of Gout
To evaluate differences in specific SNPs and intestinal microflora between patients with gout and hyperuricemia and healthy controls.
- Conditions
- Gout, Hyperuricemia, Gut Microbiota, Uric Acid
- Trial name
- NCT04953533
- Testing
- no intervention
- Where
- China
- Volunteers
- 800 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine