Clinical trials: Cytochrome P-450 Enzyme System
Antipsychotic Induced Weight Gain, Non-alcoholic Steatohepatitis (NASH)
Study to Evaluate the Effects of a Cytochrome P450 2C19 Inhibitor on the Pharmacokinetics of Miricorilant
The primary objective of this study is to evaluate the pharmacokinetics (PK) of miricorilant in the presence and absence of the strong cytochrome P450 [(CYP) 2C19] inhibitor, fluvoxamine, in healthy participants.
- Trial name
- NCT05712265
- Testing
- Miricorilant, Fluvoxamine
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Corcept Therapeutics
Hepatitis C
Study to Determine the Potential DDIs When the Daclatasvir/Asunaprevir/BMS-791325 Three Drug Antiviral Combination Tablet (FDC) is Coadministered With a Cocktail of Cytochrome P450 (CYP) Probe Substrates and Transporter Probe Substrates (Digoxin and Pravastatin) in Healthy Subjects
The primary purpose of this study is to assess the effect of the Daclatasvir/Asunaprevir/BMS-791325 fixed dose combination (FDC) tablet on the pharmacokinetics of the cocktail CYP and transporter probe substrates and to assess…
- Trial name
- NCT02045966
- Testing
- Cocktail, DCV 3DAA FDC, BMS-791325
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Bristol-Myers Squibb
Stroke
Drug-Drug Interaction Study of MLC1501 Using Cocktail of Drugs Acting as Sensitive Clinical Probes/Substrates of Cytochrome P450 Isoenzymes and Transporters in Healthy Subjects
This is a single-centre phase I study to assess the Drug-Drug Interaction potential of MLC1501 with a cocktail of drugs acting as sensitive clinical probe substrates of Cytochrome P450 isoenzymes and Transporters in healthy…
- Trial name
- NCT04233437
- Testing
- MLC1501, CYP Cocktail, Transporter Cocktail
- Where
- Australia
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Moleac Pte Ltd.
Rheumatoid Arthritis
Effects of Concomitant Administration of BMS-986195 on Methotrexate, Caffeine, Montelukast, Flurbiprofen, Omeprazole, Midazolam, Digoxin, and Pravastatin
Drug-drug interaction study in healthy men and women not of childbearing potential. Assess the effect of BMS-986195 on the pharmacokinetics of methotrexate, caffeine, montelukast, flurbiprofen, omeprazole, midazolam, digoxin, and…
- Trial name
- NCT03131973
- Testing
- BMS-986195, Methotrexate, Leucovorin
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Bristol-Myers Squibb
Acute Ischemic Stroke
Clopidogrel Preventive Effect Based on CYP2C19 Genotype in Ischemic Stroke
The hypothesis of this study is that "the poor metabolizer or intermediate metabolizer of the cytochrome P450 2C19 genotype in patients with acute ischemic stroke is associated with increased risk of composite cardiovascular…
- Trial name
- NCT04072705
- Testing
- General principles of care and judgement of researcher
- Where
- 37 sites in South Korea
- Volunteers
- 2,927 people
- Sponsor
- Gangnam Severance Hospital
HIV Infections
An Open-Label Study in HIV+ Patients to Determine the Effects of Nevirapine (Viramune) on the Pharmacokinetics of Clarithromycin and Activity of Cytochrome 3A4.
To evaluate the potential pharmacokinetic interaction between nevirapine and clarithromycin, and to determine the effects of nevirapine on cytochrome P450 3A4 (CYP3A4) activity in vivo.
- Trial name
- NCT00002194
- Testing
- Erythromycin, Nevirapine, Clarithromycin
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- Boehringer Ingelheim
Liver Cirrhosis
In Vivo Determination of Cytochrome P450 Activities in Patients With Liver Cirrhosis
Subjects will receive the "Basel phenotyping cocktail" capsule orally with 120-200ml tap water in fasted state. After intake peripheral venous blood samples will be drawn.
- Trial name
- CombiCapsLC (NCT03337945)
- Testing
- "Basel phenotyping cocktail" capsule
- Where
- Switzerland
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
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)
Healthy, HIV Infections
Influence of the MDR1 Genotype on Blood Levels of Indinavir and Saquinavir in Healthy Volunteers
This study will examine whether a particular type of gene (MDR1) in the body can affect blood levels of two protease inhibitors, indinavir and saquinavir, which are used to treat people with HIV.
- Trial name
- NCT00050180
- Testing
- Midazolam, Indinavir, Saquinavir
- Where
- United States
- Volunteers
- 81 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
Metabolism, Alzheimer's Disease
Drug Interaction Study Between AZD3480 and Cytochrome P450
The purpose of the study is to evaluate if AZD3480 inhibits Cytochrome P450 1A2, 2C19, 3A4, 2C8, 2B6 and UGT1A1 activity.
- Trial name
- Cocktail (NCT00692510)
- Testing
- AZD3480, Cocktail mix (Caffeine, Bupropion, Rosiglitazone, Omeprazole, Midazolam, Bilirubin)
- Where
- Sweden
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- AstraZeneca
Lewy Body Disease
A Genetic and Perfusion Study of Response to Cognitive Enhancers in Lewy Body Disease
Lewy body spectrum disorders are a common group of neurodegenerative diseases that cause memory loss, behavioural and motor disabilities that impair quality of life.
- Trial name
- NCT01944436
- Testing
- Cholinesterase Inhibitors (Rivastigmine, Aricept, Galantamine)
- Where
- Canada
- Volunteers
- 57 people
- Sponsor
- Sunnybrook Health Sciences Centre
Cerebral Infarction, Clopidogrel,Poor Metabolism of (Disorder)
The Dynamic Effect of Non-cytochrome P450 Isoenzyme 3A4（CYP3A4）-Metabolized and Cytochrome P450 Isoenzyme 3A4（CYP3A4）-Metabolized Statins on Clopidogrel Resistance in Patients With Cerebral Infarction
The investigators team had found that the presence of dynamic changes of Clopidogrel resistance are not associated with genetic factors.
- Trial name
- NCT02411903
- Testing
- atorvastatin and clopidogrel, rosuvastatin and clopidogrel
- Volunteers
- 160 people
- Sponsor
- The Third Affiliated Hospital of Guangzhou Medical University
Crohn Disease, Ulcerative Colitis
A Study to Evaluate the Effect of Ustekinumab on Cytochrome P450 Enzyme Activities Following Induction and Maintenance Dosing in Participants With Active Crohn's Disease or Ulcerative Colitis
The purpose of this study is to evaluate the potential effects of an intravenous (IV) induction and subcutaneous (SC) maintenance administration of ustekinumab on the pharmacokinetic (PK) of a cocktail of representative probe…
- Trial name
- NCT03358706
- Testing
- Ustekinumab IV Infusion, Ustekinumab SC Injection, Midazolam 2 mg
- Where
- 16 sites in United States, Belgium and 2 more
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Janssen Research & Development, LLC
Healthy
A Study to Assess Effect of JNJ-54861911 on Pharmacokinetics of Cocktail Representatives for Cytochrome P450 (CYP) 3A4, CYP2B6, CYP2C9, and CYP1A2 Substrates
The purpose of this study is to assess the effects of single and multiple once daily doses of 50 milligram (mg) of JNJ-54861911 on pharmacokinetics (PK) (study of the way a drug enters and leaves the blood and tissues over time)…
- Trial name
- NCT02211079
- Testing
- JNJ-54861911, Caffeine, Midazolam
- Where
- Netherlands
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Janssen Research & Development, LLC
Healthy
Study Evaluating Potential Interaction Between SAM-531 And Gemfibrozil When Co-Administered
The purpose of this study is to evaluate the effects of multiple doses of Gemfibrozil on the plasma concentration of a single dose of SAM-531 in healthy young adult subjects and to assess the safety and tolerability of…
- Trial name
- NCT00966966
- Testing
- SAM-531 and gemfibrozil
- Where
- Netherlands
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
Ulcerative Colitis (UC), Crohn's Disease
A Study to Evaluate the Effect of Intravenous (IV) Infusions of Risankizumab on Pharmacokinetics of Cytochome P450 Substrates in Adult Participants With Moderately to Severely Active Ulcerative Colitis or Crohn's Disease
Ulcerative colitis (UC) is a type of inflammatory bowel disease that causes inflammation and bleeding from the lining of the rectum and colon (large intestine).Crohn's disease (CD) is a long-lasting condition causing inflammation…
- Trial name
- NCT04254783
- Testing
- Risankizumab, Cytochrome P450 (CYP) Substrates
- Where
- 6 sites in United States, Germany and 1 more
- Volunteers
- 20 people
- Sponsor
- AbbVie
Bipolar Disorder
Examination of Tamoxifen in Acute Mania in Patients With Bipolar I Disorder
The purpose of this study is to examine how the drug tamoxifen affects the brain in patients with bipolar I disorder. Bipolar Disorder (BD) is a severe, chronic, and often life-threatening illness for which safe and effective…
- Trial name
- NCT00026585
- Testing
- Tamoxifen
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- National Institute of Mental Health (NIMH)
B-Cell Chronic Lymphocytic Leukemia
Interaction Study of Ibrutinib and Cytochrome P450 (CYP) 3A Inhibitors in Participants With B-cell Malignancy
The purpose of this study is to assess the effect of a moderate Cytochrome P450 (CYP) 3A inhibitor (erythromycin) and a strong CYP3A inhibitor (voriconazole) on the steady-state pharmacokinetics (PK [the study of the way a drug…
- Trial name
- NCT02381080
- Testing
- Ibrutinib, Erythromycin, Voriconazole
- Where
- 6 sites in Canada, Russia and 1 more
- Volunteers
- 26 people
- Sponsor
- Janssen Research & Development, LLC
Sleep Apnea
Hepatic Drug Biotransformation in Children With Obstructive Sleep Apnea
The purpose of this research study is to determine the effect of chronic nighttime low oxygen saturations on selected body systems (liver) that break down drugs in children with obstructive sleep apnea syndrome (OSAS).
- Trial name
- NCT00310323
- Testing
- Dextromethorphan, Caffeine
- Where
- 2 sites in United States
- Volunteers
- 69 people
- Sponsor
- Virginia Commonwealth University
Human Immunodeficiency Virus Type 1 (HIV-1) Infection
Drug-Drug Interaction Study of Vesatolimod in Adults With HIV-1 Who Have Very Low or Undetectable Virus Levels
The goal of this clinical study is to learn more about the impact of cobicistat (COBI) (P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and strong cytochrome P450 enzyme [CYP]3A inhibitor), voriconazole (VOR)…
- Trial name
- NCT05458102
- Testing
- Vesatolimod, Cobicistat, Voriconazole
- Where
- 5 sites in United States
- Volunteers
- 18 people
- Sponsor
- Gilead Sciences