Ignite Creation Date:
2025-12-25 @ 12:04 AM
Ignite Modification Date:
2026-01-03 @ 8:43 PM
Study NCT ID:
NCT00728858
Status:
COMPLETED
Last Update Posted:
2008-08-06
First Post:
2008-05-28
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
The Efficacy, Safety and Genetic Polymorphism of Hypoca and Adalat OROS in Hypertensive Patients
Sponsor:
National Taiwan University Hospital
Organization:
Study Overview
Official Title:
An Open-Label, Randomized Clinical Study to Evaluate the Efficacy, Safety and Genetic Polymorphism of Hypoca(Barnidipine)and Adalat OROS(Nifedipine) in Mild to Moderate Hypertensive Patients
Status:
COMPLETED
Status Verified Date:
2008-04
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Nifedipine and barnidipine act as calcium channel blockers, and are widely prescribed for pressure control of prehypertension and stage 1 hypertension.
CYP3A4 is responsible for the metabolism of nifedipine and nifedipine, while the contribution of CYP3A5 remains ambiguous. This study is aimed to analyze the association between antihypertensive effects of nifedipine as well as barnidipine and single nucleotide polymorphisms of CYP3A4, CYP3A5 and calcium channels.
CYP3A4 is responsible for the metabolism of nifedipine and nifedipine, while the contribution of CYP3A5 remains ambiguous. This study is aimed to analyze the association between antihypertensive effects of nifedipine as well as barnidipine and single nucleotide polymorphisms of CYP3A4, CYP3A5 and calcium channels.
Detailed Description:
For each drug, 20 patients will be enrolled. Patients' blood pressure and heart rates will be measured at first visit, followed by visits at week4 , week 8 and week 12. Blood samples will be drawn at week 4 and week 12 for following analyses of drug plasma concentrations. SNPs in CYP3A4, CYP3A5 and calcium channel v 1.2 will be genotyped using SNPstream.
The differences in the decrease of blood pressures and the durg plasma concentrations between genotypes will be analyzed.
The differences in the decrease of blood pressures and the durg plasma concentrations between genotypes will be analyzed.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: