Clinical trials: Genetic Polymorphism
CYP2D6 Polymorphism
Effects of Isotretinoin on CYP2D6 Activity
Specific Aim: To investigate if isotretinoin (13-cis-retinoic acid) administration decreases CYP2D6 activity in adolescent patients.
- Trial name
- NCT03076021
- Testing
- Isotretinoin, dextromethorphan
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- University of Washington
Pain, Surgery
The Impact of SCN9A Gene Polymorphism on Individual Pain Perception in the General Population
This study was conducted to explore whether the non-synonymous single-nucleotide polymorphisms in SCN9A gene can predict individual basal pain perception and postoperative pain intensity in the general population undergoing upper…
- Trial name
- NCT01507493
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Xianwei Zhang
Upper Gingival Squamous Cell Carcinoma
Role of FCγRIIIA and FCγRIIA Receptor Polymorphisms
Hypothesis: Cetuximab, an anti-EGFR antibody, is used with radiotherapy in the treatment of locally advanced and inoperable upper aerodigestive tract cancers.
- Trial name
- FCR-VADS (NCT01827956)
- Testing
- Cetuximab
- Where
- France
- Volunteers
- 121 people
- Sponsor
- Institut Bergonié
Dysgeusia
Gustin Gene Polymorphism and 6-n-propylthiouracil (PROP) Taste
The investigators evaluate the possible association of PROP taste with gustin gene polymorphism rs2274333 (A/G), salivary zinc ion concentration and BMI.
- Trial name
- gustinprop (NCT01097915)
- Where
- Italy
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- University of Cagliari
Vitamin D Receptor Defect
Association Between Vitamin D Receptor Polymorphism and Serum Vitamin D Levels in Children With Low-Energy Fractures
This study was designed to determine the impact of vitamin D serum levels and vitamin D receptor (VDR) polymorphisms on the occurrence of low energy fractures in children.
- Trial name
- NCT02805647
- Where
- Poland
- Volunteers
- 222 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok
Abdominal Surgery, Respiratory Failure
Metabolites of Tramadol in the Postoperative Surgical Patients
Tramadol is opioid analgesic widely used to treat moderate to severe pain. It is metabolized by cytochrome CYP2D6 into two major metabolites: pharmacologically active metabolite O-desmethyltramadol (M1) and inactive…
- Conditions
- Abdominal Surgery, Respiratory Failure, Renal Failure, Liver Dysfunction
- Trial name
- METRAS (NCT04004481)
- Testing
- Postoperative analgesia using tramadol
- Where
- Croatia
- Volunteers
- 50 people
- Sponsor
- Osijek University Hospital
Environmental and Genetic Factors on Lung Function
ONES Grant: CXCL10/CXCR3 Regulation of Ozone-Induced Epithelial Permeability
The purpose of this research study to understand how environmental and genetic factors may be involved in lung function. Study participants will undergo a 1-day screening that includes a blood draw and breathing testing, return…
- Trial name
- NCT03599206
- Testing
- Ozone, Filtered Air
- Where
- United States
- Volunteers
- 14 people
- Sponsor
- Robert Tighe, MD
Diabetes
GLP1R Polymorphisms and Response to GLP1
Glucagon-like Peptide-1 (GLP-1) is an important incretin hormone which acts as a powerful insulin secretagogue. Defects in GLP-1 synthesis and secretion are thought to be part of the pathogenesis of type 2 diabetes.
- Trial name
- NCT00588380
- Testing
- GLP-1
- Where
- United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Systemic Lupus Erythematosus
A Prospective Study of Cyclophosphamide in Systemic Lupus Erythematosus Treatment
The purpose of this study is to compare the genotype-based personal prescription of cyclophosphamide with the traditional prescription.
- Trial name
- SLE (NCT01689350)
- Testing
- Genotype Detection
- Where
- China
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Obesity, Insulin Resistance
Apelin Levels and G212A Polymorphism of Apelin Receptor (APJ)
The aim of this study is to investigate serum apelin levels as well as their possible association with G212A polymorphism of the apelin receptor in obese children and adolescents.
- Conditions
- Obesity, Insulin Resistance, Diabetes Mellitus Type 2
- Trial name
- NCT01121172
- Where
- Greece
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Aristotle University Of Thessaloniki
Prostate Cancer, Genetic Polymorphism
Satraplatin and Prednisone to Treat Prostate Cancer
Background: Satraplatin is an experimental drug that may be of benefit to patients with prostate cancer. Prednisone is approved for treating prostate cancer.
- Trial name
- NCT00634647
- Testing
- Satraplatin, prednisone
- Where
- 2 sites in United States
- Volunteers
- 24 people
- Sponsor
- National Cancer Institute (NCI)
Congenital Heart Disease
Influence of Genetic Polymorphisms on Ventricular Structure and Function in Patients With Single Ventricle Anatomy
There are many kids born with congenital heart disease. Some of these defects may lead to the formation of a single ventricle (the heart having only one pumping chamber).
- Trial name
- NCT00165984
- Where
- United States
- Volunteers
- 224 people
- Sponsor
- Emory University
Labor Pain, Post-cesarean Delivery
Mu-Opioid Receptor Genetic Polymorphism and Intrathecal Analgesia
Pharmacogenetics has allowed clinicians to identify associations between an individual's genetic profile and his/her response to drugs.
- Trial name
- NCT00418015
- Testing
- Blood Draw
- Where
- United States
- Volunteers
- 293 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Efavirenz, Metabolism and Pharmacokinetics Changes
Determine the Effects of Gene Differences and Voriconazole on Enzyme CYP2B6 Activity in the Liver in Healthy Volunteers
The purpose of this study is to see if administration of medicines and genetic differences affects the activity of a liver enzyme called CYP2B6 in healthy volunteers.
- Trial name
- NCT01104376
- Testing
- Efavirenz, voriconazole
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Indiana University
Asthma
The Effects of Different Long-acting Bronchodilator Medications on Asthma Patients With Different Genetic Variations
This study is looking at the effects of certain long-acting bronchodilators on patients with asthma who have specific genetic variations.
- Trial name
- GABLE (NCT00706446)
- Testing
- tiotropium bromide, Salmeterol, Formoterol
- Where
- 2 sites in United States
- Volunteers
- 255 people
- Sponsor
- Brigham and Women's Hospital
Diabetes Mellitus
SNP Study of DPP-4 and GLP-1R in Chinese People (Including Diabetes Patients)
Incretin-based therapy is currently one of the most popular diabetes treatment approaches. However, differences of response ware found in previous studies.
- Trial name
- NCT03108521
- Testing
- Sitagliptin
- Where
- China
- Volunteers
- 119 people, healthy volunteers welcome
- Sponsor
- Sichuan Provincial People's Hospital
Systemic Arterial Hypertension, Hypertension Resistant to Conventional Therapy
Renin-angiotensin-aldosterone System Polymorphisms in Resistant Hypertension and Adverse Cardiovascular Events
Renin-angiotensin-aldosterone system (RAAS) polymorphisms influence 24h arterial pressure fluctuation. Resistant systemic arterial hypertension (RSAH) has an increased risk of end organ damage and unfavourable prognosis, whereas…
- Conditions
- Systemic Arterial Hypertension, Hypertension Resistant to Conventional Therapy, Myocardial Infarction, Stroke
- Trial name
- GENHART (NCT01173029)
- Testing
- Anti-hypertensive drug treatment
- Where
- Brazil
- Volunteers
- 92 people
- Sponsor
- Universidade Gama Filho
Hepatitis B, Chronic
A Study Evaluating IL28B Polymorphism in Patients With HBeAg-Negative Chronic Hepatitis B Treated With Pegasys (Peginterferon Alfa-2a) in Study ML18253
This cross-sectional multicenter study will evaluate the IL28B polymorphism in patients with HBeAg-negative chronic hepatitis B treated with Pegasys (peginterferon alfa-2a) in the predecessor ML18253 study.
- Trial name
- NCT01697501
- Testing
- Interleukin 28B testing
- Where
- 12 sites in Italy
- Volunteers
- 88 people
- Sponsor
- Hoffmann-La Roche
Pain, Postoperative
Evaluation of Pharmacogenetic Factors Affecting Fentanyl Requirements for Postoperative Pain Control
Fentanyl is a widely used opioid analgesic. There are big interindividual variabilities in dose requirements of fentanyl for postoperative pain control.
- Trial name
- NCT00824772
- Where
- South Korea
- Volunteers
- 204 people
- Sponsor
- Inje University
Pain, Surgery
Impact of CYP3A4*1G Polymorphism on Metabolism of Fentanyl in Chinese Patients Undergoing Lower Abdominal Surgery
Purpose: This study aimed to investigate the impact of CYP3A4*1G genetic polymorphism on metabolism of fentanyl in Chinese patients undergoing lower abdominal surgery.
- Trial name
- NCT01181492
- Where
- China
- Volunteers
- 176 people
- Sponsor
- Huazhong University of Science and Technology