Clinical trials: Polymorphism
Type2 Diabetes
Association Between TMAO and Diabetes
Background: The association of trimethylamine-N-oxide (TMAO), a microbiota dependent metabolite from dietary choline and carnitine, with type 2 diabetes was inconsistent.
- Trial name
- NCT03130894
- Testing
- Plasma TMAO concentration
- Volunteers
- 2,694 people, healthy volunteers welcome
- Sponsor
- Liegang Liu
Multiple Sclerosis, Relapsing-Remitting
Polymorphisms of Interleukins, Glypican, and Human Leukocyte Antigen Genes and Treatment Response in Multiple Sclerosis.
HLA-DRB1 * Gene and some genes involved in inflammation and immunity (IL-7R, GPC5, CTSS) have been linked to risk of MS and the response to treatment with immunomodulators.
- Trial name
- WESTEMDRB1 (NCT02769767)
- Testing
- Polymorphism of Interleukins, Glypican, and Human Leukocyte Antigen Genes.
- Where
- Mexico
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Instituto Jalisciense de Cancerologia
Sexual Dysfunction
Trazodone for SSRI-sexual Dsyfunction
The aim of this study is to investigate the efficacy of trazodone in the treatment of selective serotonin reuptake inhibitor(s) associated sexual dysfunction.
- Trial name
- T-SSRI-SD (NCT01097980)
- Testing
- Trazodone
- Where
- Taiwan
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Beitou Armed Forces Hospital, Taipei, Taiwan
Induced Pluripotent Stem Cells
Stem Cell Study of Genetics and Drug Addiction
Background: Researchers are interested in studying the roles that genes play in drug and alcohol addiction. Genes seem to account for about half of the differences between people who become addicted to drugs and people who do…
- Trial name
- NCT01534624
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- National Institute on Drug Abuse (NIDA)
Vitamin D Deficiency, Pregnancy
Effects of Vitamin D on Health Promotion During Pregnancy and Its Impact on Prematurity-Related Outcome
The VitDTracking study focuses on the relevance of maternal vitamin D levels and their association with prematurity, aiming to improve maternal and child health outcomes, particularly by reducing avoidable preterm births.
- Trial name
- VitDTracking (NCT06292195)
- Testing
- Exposure
- Where
- 3 sites in Portugal
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- University of Évora
Coronary Artery Disease
Role of CYP2C19 Polymorphism in the Drug Interaction Between Clopidogrel and Omeprazole
Clopidogrel, an inhibitor of ADP induced platelet aggregation and activation, is one of the most commonly used drugs in patients with cardiovascular disease.
- Trial name
- NCT01094275
- Testing
- Clopidogrel 75mg, Omeprazole 20mg
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Neil Kleiman, MD
Anovulation, Disorder Due Cytochrome P450 CYP2D6 Variant
Influence of Pharmacogenetic Factors, Paroxetine and Clarithromycin on Pharmacokinetics of Clomiphene
Aim of the study is the clinical validation of the metabolism and the pharmakokinetic of Clomifen in correlation to CYP2D6 and inhibition of CYP3A4.
- Conditions
- Anovulation, Disorder Due Cytochrome P450 CYP2D6 Variant, Cytochrome P450 CYP3A Enzyme Deficiency
- Trial name
- NCT01289756
- Testing
- Clomiphene, clomiphene and paroxetine, clomiphene and clarithromycin
- Where
- Germany
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Robert Bosch Gesellschaft für Medizinische Forschung mbH (RBMF)
Skin Cancer
TLR4 Polymorphisms and Risk of Skin Cancer
Toll-like receptors (TLRs) play a key role in the innate immune system. Toll-like receptor-4 (TLR4) in particular, appears to play a role in susceptibility to cancer.
- Trial name
- NCT03122366
- Testing
- Detection of single nucleotide polymorphisms (SNP)
- Where
- United States
- Volunteers
- 392 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Wildtype, Polymorphism Liver FABP
Potential Association of a Common L-FABP Polymorphism With Lipid-induced Hepatic Insulin Resistance
The investigators hypothesise that a common A277G polymorphism of the liver fatty acid binding protein (L-FABP) gene, which leads to an amino acid exchange, may be associated with alterations of lipid-induced hepatic insulin…
- Trial name
- NCT00277342
- Testing
- measurement of lipid-induced hepatic insulin resistance
- Where
- Germany
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- German Institute of Human Nutrition
Genetic Predisposition to Disease
RORC Genetic Polymorphism of Rheumatoid Arthritis
Three candidate single nucleotide polymorphisms in the RORC2 gene, rs9826 A/G, rs3790515 C/T and rs3828057 C/T were examined together with estimation of nuclear hormone retinoic acid receptor-related orphan receptor variant 2…
- Trial name
- NCT03615729
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Assiut University
Abortion, Spontaneous
Interleukin-10 Promoter-1082A/G Polymorphism and Idiopathic Recurrent Miscarriage Risk
This study aimed to assess the correlation between the interleukin-10 (IL-10)-1082A/G polymorphism and idiopathic recurrent miscarriage (IRM) of Chinese Han.
- Trial name
- NCT02633475
- Testing
- IL-10 polymorphism
- Where
- 2 sites in China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Fourth Affiliated Hospital of Guangxi Medical University
Pharmacokinetic Study in Healthy Volunteers
Evaluation of Solanidine as an Exogenous Biomarker to Phenotype CYP2D6 Activity in Humans
This study investigates the evaluation of solanidine as an exogenous biomarker to phenotype CYP2D6-activity in humans. Participants will be classified by their CYP2D6 genotype into poor metabolizers (PM), low intermediate…
- Trial name
- SOLA-1 (NCT07817030)
- Testing
- Yohimbine, Consumption of a defined potato-rich meal
- Where
- Germany
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Medicine Greifswald
High Myopia, Gene Mutations
TGFB1 And LAMA1 Gene Polymorphisms in High Myopia
The investigators aimed to investigate TGFB1 and LAMA1 gene polymorphisms in children with high myopia in order to determine the genetic basis of large myopic shifts causing severe visual impairment and complications.
- Trial name
- NCT03451877
- Testing
- TGFB1 AND LAMA1 GENE POLYMORPHISMS
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Ege University
Premature Myocardial Infarction in Young Egyptian Patients
SIRT1 Gene Polymorphism With Premature Myocardial Infarction in Young Egyptian Patients
This is an observertional study aimed at Study the association of SIRT1(rs7069102 ) Gene polymorphism with premature myocardial infarction in young Egyptian patients
- Trial name
- SIRT1 (NCT05160844)
- Where
- Egypt
- Volunteers
- 280 people, healthy volunteers welcome
- Sponsor
- Sohag University
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 Volunteers
Pharmacogenomic Study on PKD/PKC of Dabigatran Etexilate and Rivaroxaban
The study will address the impact of genetical variation of a protein involved in the intestinal absorption of two new anticoagulants : Dabigatran etexilate and Rivaroxaban.
- Trial name
- DRIVING (NCT01627665)
- Testing
- D->R->C+R, D->R->C+D, R->D->C+D
- Where
- France
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
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
Breast Cancer
Role of Cytochrome P450 2D6 (CYP2D6) *4 Polymorphism,in Malignant Breast Diseases
The aim of our study is to investigate the potential role of the CYP2D6*4 polymorphism in breast cancer and furthermore to assess the role of oxidative stress, antioxidant capacity and ferretin in pathogenesis of breast cancer in…
- Trial name
- NCT00539422
- Testing
- pcr and serum markers for breast cancer
- Where
- Egypt
- Volunteers
- healthy volunteers welcome
- Sponsor
- Mansoura University
Self Injurious Behavior Without Suicidal Intent, Self-Injurious Behavior
Genetics of Self-injurious Behaviour
Nonsuicidal Self-Injury (NSSI) is being increasingly regarded as a separate psychiatric disorder. Since the latest Diagnostic and Statistical Manual of Mental Disorders - DSM-5 from 2013 defined NSSI as a separate diagnosis under…
- Trial name
- NCT05563324
- Testing
- DNA extraction and genotyping of candidate genetic polymorphisms, self-assessment questionnaires
- Volunteers
- 234 people, healthy volunteers welcome
- Sponsor
- University Medical Centre Maribor
Puberty
The COPENHAGEN Puberty Study
By clinical examinations and withdrawing of blood samples from a large number of healthy Danish children, this study will reveal if age of pubertal onset is declining.
- Trial name
- NCT01411527
- Where
- Denmark
- Volunteers
- 1,957 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet