CLINICAL TRIALS PROFILE FOR ADALAT
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All Clinical Trials for Adalat
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT00137501 ↗ | Two Dose Regimens of Nifedipine for the Management of Preterm Labor | Terminated | American University of Beirut Medical Center | Phase 3 | 2003-05-01 | Preterm birth is one of the most important causes of perinatal morbidity and mortality worldwide. Prevention and treatment of preterm labor is important, not as an end in itself, but as a means of reducing adverse events for the neonate. A wide range of tocolytics, drugs used to suppress uterine contractions, have been tried. Magnesium sulfate (MgSO4) is the most widely used tocolytic at the American University of Beirut Medical Center despite the fact that an effective tocolytic role of MgSO4 has never been established. Moreover, the currently available data are suggestive of deleterious fetal effects of MgSO4 in the setting of preterm labor to the extent that some authorities are recommending abandoning it for routine use as a tocolytic therapy. Calcium channel blockers have the ability to inhibit contractility in smooth muscle cells. Consequently, nifedipine has emerged as an effective and rather safe alternative tocolytic agent for the management of preterm labor after several studies have shown that the use of nifedipine in comparison with other tocolytics is associated with a more frequent successful prolongation of pregnancy, resulting in significantly fewer admissions of newborns to the neonatal intensive care unit, and is associated with a lower incidence of respiratory distress syndrome. The unequivocal impact of this method of tocolysis on short term postponement of delivery and the opportunity that this provides for affecting in-utero transfer and steroid administration has prompted many investigators to recommend focusing future trials on testing different dose regimens of nifedipine. To the best of the investigators' knowledge, no study comparing two different dose regimens of nifedipine has been previously published in the literature. The objective of their study is to compare the effectiveness of a high versus a low dose regimen in a total of 200 patients admitted with the diagnosis of preterm labor between 24 and 34 weeks of gestation. In addition, the investigators' study will try to assess the safety profile of the 2 dose regimens on the mother and the neonate by assessing a selected number of outcome variables. The data generated will be used to change their protocol for managing patients presenting with threatened preterm delivery and will fill the existing gap regarding the most effective and safest dose regimen of nifedipine in such patients. |
| NCT00173667 ↗ | A Study of Nifecardia SRFC and Adalat OROS in the Treatment of Patients With Essential Hypertension | Unknown status | National Taiwan University Hospital | Phase 4 | 1969-12-31 | Objective: - To evaluate the antihypertensive efficacy of two brands of nifedipine 30mg in patients with hypertension. - To assess the safety of 8 weeks of therapy with two brands of nifedipine 30mg in patients with hypertension. - To study flow-mediated dilatation and oxidative stress in nonsmoker with essential hypertension but without diabetes mellitus or dyslipidemia. Study Design: - Head-to-head, randomized and parallel design. - A total of 60 patients with a clinically confirmed diagnosis of hypertension will provide 30 available patients in each treatment group. - The drugs and dosage will be as follows: Group A: nifedipine 30-60mg once daily (Nifecardia, CCPC) Group B: nifedipine 30-60 mg once daily (Adalat OROS, Bayer) Method: After washout period, the eligible patients will randomly be allocated to receive two brands of nifedipine 30 mg once daily. Each patient will receive two times of ambulatory blood pressure measurement (ABPM) at both entrance and final stages of the study. The patients will also undergo complete clinical evaluation. Therapy dosage will be started at a dose of nifedipine 30 mg once daily. Dosage will be adjusted if systolic blood pressure greater than 140 mmHg or diastolic blood pressure greater than 90 mmHg by office measurement after 4 weeks of treatment. Nifedipine will be increased to 60 mg once daily. The Ambulatory blood pressure measurement will be set to take reading at 1-hour intervals during the 24 hours assessment. Physical examination included the measurement of heart rate and blood pressure. The value will be read on Visit 1 and 3-12 hours after the last dose of nifedipine. Routine laboratory test includes hematology, blood chemistry and urinalysis. Hematology test and fasting blood chemistry test will be measured immediately before the start of treatment and after 8 weeks' treatment or at time of discontinuation. Thiobarbituric acid-reactive substances (TBARS) in patient plasma were measured for oxidative stress and endothelium-dependent flow-mediated vasodilation will also be evaluated. Possible concomitant medication will remain constant throughout the study. The physician will question the patients as to their compliance at each visit. If compliance dose not reach 80%, the subject will be dropped out. |
| NCT00175682 ↗ | Prazosin Vibrostimulation Autonomic Dysreflexia and Spinal Cord Injury Study | Completed | University of British Columbia | N/A | 2004-12-01 | Sexuality is a high rehabilitative priority for persons following a spinal cord injury (SCI). Sexual acts can lead to autonomic dysreflexia (AD), dangerous consequences such as a sudden increase in blood pressure, severe headache, sweating above the level of the lesion and low heart rate to name a few. Ejaculation in men can provoke these significant symptoms and therefore men and women may refrain from a sexual life and biological parenthood. Adalat is the most common antihypertensive used in fertility clinics to reduce the incidence of AD. It dramatically reduces blood pressure and, therefore, results in side effects such as dizziness, fatigue and weakness. The investigators hypothesize that Minipress® (prazosin HCL), a blood pressure medication, which has a slower and less abrupt suppressive effect on blood pressure, would be a safe, effective and more appropriate medication for use in the outpatient sperm retrieval clinic and potentially for private use. |
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