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Generated: December 9, 2018

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CLINICAL TRIALS PROFILE FOR EPHEDRINE SULFATE

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Clinical Trials for Ephedrine Sulfate

Trial ID Title Status Sponsor Phase Summary
NCT00426842 A Dose Response Trial Using 5 and 10 Mg of Midodrine Hydrochloride Completed James J. Peters Veterans Affairs Medical Center Phase 2 With upright postures, there is an immediate redistribution of blood to the dependent circulation; venous return and central venous filling pressure are reduced, resulting in diminution of cardiac output and blood pressure. These hemodynamic alterations stimulate the baroreceptor reflex, which is mediated via the central nervous system to increase peripheral sympathetic vasomotor tone, restoring blood pressure and cardiac output within seconds-to-minutes of the assumption of the upright position. Following SCI, individuals often experience the inability to adjust to postural changes due to disruption of central command of the baroreceptor reflex and reduction in efferent sympathetic neural pathways; consequently, orthostatic hypotension (OH) and symptoms of cerebral hypo-perfusion may ensue. OH is a well-documented phenomenon, which is characterized by a fall in systolic blood pressure of >20 mmHg or diastolic BP of > 10 mmHg within 3 minutes of assumption of an upright posture. As a consequence of OH, many individuals experience symptoms of cerebral hypo-perfusion which include lightheadedness, dizziness, blurry vision, fatigue, nausea, ringing in the ears, cognitive impairment and heart palpitations. Although several investigators have reported increased prevalence of OH during the acute phase of spinal cord injury (SCI), individuals with chronic injury also experience significant falls in blood pressure with seated upright postures. This investigation will examine the effects of an alpha-agonist, midodrine hydrochloride, during head-up tilt on systemic blood pressure, cerebral blood flow and cerebral oxygenation compared to placebo administration in persons with chronic SCI who demonstrate significant orthostatic hypotension during a 24-hour observation study. This is the first study to determine the dose response and efficacy of midodrine to improve orthostatic blood pressure and cerebral blood flow and oxygenation in the SCI population.
NCT00458003 Phenylephrine in Spinal Anesthesia in Preeclamptic Patients Recruiting Northwestern University N/A Hypotension remains a common clinical problem after induction of spinal anesthesia for cesarean delivery. Maternal hypotension has been associated with considerable morbidity (maternal nausea and vomiting and fetal/neonatal acidemia). Traditionally, ephedrine has been the vasopressor of choice because of concerns about phenylephrine's potential adverse effect on uterine blood flow. This practice was based on animal studies which showed that ephedrine maintained cardiac output and uterine blood flow, while direct acting vasoconstrictors, e.g., phenylephrine, decreased uteroplacental perfusion. However, several recent studies have demonstrated that phenylephrine has similar efficacy to ephedrine for preventing and treating hypotension and may be associated with a lower incidence of fetal acidosis. All of these studies have been performed in healthy patients undergoing elective cesarean delivery. Preeclampsia complicates 5-6% of all pregnancies and is a significant contributor to maternal and fetal morbidity and mortality. Many preeclamptic patients require cesarean delivery of the infant. These patients often have uteroplacental insufficiency. Given the potential for significant hypotension after spinal anesthesia and its effect on an already compromised fetus, prevention of (relative) hypotension in preeclamptic patients is important. Spinal anesthesia in preeclamptic patients has been shown to have no adverse neonatal outcomes as compared to epidural anesthesia when hypotension is treated adequately. Due to problems related to management of the difficult airway and coagulopathy, both of which are more common in preeclamptic women, spinal anesthesia may be the preferred regional anesthesia technique. Recent studies have demonstrated that preeclamptic patients may experience less hypotension after spinal anesthesia than their healthy counterparts. To our knowledge, phenylephrine for the treatment of spinal anesthesia-induced hypotension has not been studied in women with preeclampsia. The aim of our study is to compare intravenous infusion regimens of phenylephrine versus ephedrine for the treatment of spinal anesthesia induced hypotension in preeclamptic patients undergoing cesarean delivery. The primary outcome variable is umbilical artery pH.
NCT01006863 Preoperative Ephedrine Attenuates the Hemodynamic Responses of Propofol During Valve Surgery: A Dose Dependent Study Completed Mansoura University Phase 2 The prophylactic use of small doses of ephedrine may be effective in obtunding of the hypotension responses to propofol with minimal hemodynamic and ST segment changes. The investigators aimed to evaluate the effects of small doses of ephedrine on hemodynamic responses of propofol anesthesia for valve surgery. There is widespread interest in the use of propofol for the induction and maintenance of anesthesia for fast track cardiac surgery. However, its use for induction of anesthesia is often associated with a significant rate related transient hypotension for 5-10 minutes. This is mainly mediated with decrease in sympathetic activity with minor contribution of its direct vascular smooth muscle relaxation and direct negative inotropic effects. Ephedrine has demonstrated as a vasopressor drug for the treatment of hypotension in association with spinal and general anesthesia. Prophylactic use of high doses of ephedrine [10-30 mg] was effective in obtunding the hypotensive response to propofol with associated marked tachycardia. However, the use of smaller doses (0.1-0.2 mg/kg) was successfully attenuated, but not abolished, the decrease in blood pressure with transient increase in heart rate. This vasopressor effect is mostly mediated by β-stimulation rather than α-stimulation and also indirectly by releasing endogenous norepinephrine from sympathetic nerves. Because the effect of decreasing the dose of ephedrine from 0.1 to 0.07 mg/kg may be clinically insignificant, the investigators postulated that the prophylactic use of small dose of ephedrine may prevent propofol-induced hypotension after induction of anesthesia for valve surgery with minimal in hemodynamic, ST segment, and troponin I changes. The aim of the present study was to investigate the effects of pre-induction administration of 0.07, 0.1, 0.15 mg/kg of ephedrine on heart rate (HR), mean arterial blood pressure (MAP), central venous and pulmonary artery occlusion pressures (CVP and PAOP, respectively), cardiac (CI), stroke volume (SVI), systemic and pulmonary vascular resistance (SVRI and PVRI, respectively), left and right ventricular stroke work (LVSWI and RVSWI, respectively) indices, ST segment, and cardiac troponin I (cTnI) changes in the patients anesthetized with propofol-fentanyl for valve surgery.
Trial ID Title Status Sponsor Phase Summary

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Clinical Trial Conditions for Ephedrine Sulfate

Condition Name

Condition Name for Ephedrine Sulfate
Intervention Trials
Hypotension 2
Orthostatic Hypotension 1
Valve Surgery 1
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Condition MeSH

Condition MeSH for Ephedrine Sulfate
Intervention Trials
Hypotension 3
Pre-Eclampsia 1
Spinal Cord Injuries 1
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Clinical Trial Locations for Ephedrine Sulfate

Trials by Country

Trials by Country for Ephedrine Sulfate
Location Trials
Egypt 2
United States 2
Saudi Arabia 2
Turkey 1
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Trials by US State

Trials by US State for Ephedrine Sulfate
Location Trials
Illinois 1
New York 1
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Clinical Trial Progress for Ephedrine Sulfate

Clinical Trial Phase

Clinical Trial Phase for Ephedrine Sulfate
Clinical Trial Phase Trials
Phase 4 2
Phase 3 1
Phase 2 2
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Clinical Trial Status

Clinical Trial Status for Ephedrine Sulfate
Clinical Trial Phase Trials
Completed 3
Recruiting 3
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Clinical Trial Sponsors for Ephedrine Sulfate

Sponsor Name

Sponsor Name for Ephedrine Sulfate
Sponsor Trials
King Faisal University 1
Mansoura University 1
Northwestern University 1
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Sponsor Type

Sponsor Type for Ephedrine Sulfate
Sponsor Trials
Other 6
U.S. Fed 1
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