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Last Updated: November 24, 2024

CLINICAL TRIALS PROFILE FOR CAPOTEN


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All Clinical Trials for CAPOTEN

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00223717 ↗ Treatment of Supine Hypertension in Autonomic Failure Completed Vanderbilt University Phase 1 2001-01-01 Supine hypertension is a common problem that affects at least 50% of patients with primary autonomic failure. Supine hypertension can be severe, and complicates the treatment of orthostatic hypotension. Drugs used for the treatment of orthostatic hypotension (eg, fludrocortisone and pressor agents), worsen supine hypertension. High blood pressure may also cause target organ damage in this group of patients. The pathophysiologic mechanisms causing supine hypertension in patients with autonomic failure have not been defined. In a study, we, the investigators at Vanderbilt University, examined 64 patients with AF, 29 with pure autonomic failure (PAF) and 35 with multiple system atrophy (MSA). 66% of patients had supine systolic (systolic blood pressure [SBP] > 150 mmHg) or diastolic (diastolic blood pressure [DBP] > 90 mmHg) hypertension (average blood pressure [BP]: 179 ± 5/89 ± 3 mmHg in 21 PAF and 175 ± 5/92 ± 3 mmHg in 21 MSA patients). Plasma norepinephrine (92 ± 15 pg/mL) and plasma renin activity (0.3 ± 0.05 ng/mL per hour) were very low in a subset of patients with AF and supine hypertension. (Shannon et al., 1997). Our group has showed that a residual sympathetic function contributes to supine hypertension in patients with severe autonomic failure and that this effect is more prominent in patients with MSA than in those with PAF (Shannon et al., 2000). MSA patients had a marked depressor response to low infusion rates of trimethaphan, a ganglionic blocker; the response in PAF patients was more variable. At 1 mg/min, trimethaphan decreased supine SBP by 67 +/- 8 and 12 +/- 6 mmHg in MSA and PAF patients, respectively (P < 0.0001). MSA patients with supine hypertension also had greater SBP response to oral yohimbine, a central alpha2 receptor blocker, than PAF patients. Plasma norepinephrine decreased in both groups, but heart rate did not change in either group. This result suggests that residual sympathetic activity drives supine hypertension in MSA; in contrast, supine hypertension in PAF. It is hoped that from this study will emerge a complete picture of the supine hypertension of autonomic failure. Understanding the mechanism of this paradoxical hypertension in the setting of profound loss of sympathetic function will improve our approach to the treatment of hypertension in autonomic failure, and it could also contribute to our understanding of hypertension in general.
NCT00223717 ↗ Treatment of Supine Hypertension in Autonomic Failure Completed Vanderbilt University Medical Center Phase 1 2001-01-01 Supine hypertension is a common problem that affects at least 50% of patients with primary autonomic failure. Supine hypertension can be severe, and complicates the treatment of orthostatic hypotension. Drugs used for the treatment of orthostatic hypotension (eg, fludrocortisone and pressor agents), worsen supine hypertension. High blood pressure may also cause target organ damage in this group of patients. The pathophysiologic mechanisms causing supine hypertension in patients with autonomic failure have not been defined. In a study, we, the investigators at Vanderbilt University, examined 64 patients with AF, 29 with pure autonomic failure (PAF) and 35 with multiple system atrophy (MSA). 66% of patients had supine systolic (systolic blood pressure [SBP] > 150 mmHg) or diastolic (diastolic blood pressure [DBP] > 90 mmHg) hypertension (average blood pressure [BP]: 179 ± 5/89 ± 3 mmHg in 21 PAF and 175 ± 5/92 ± 3 mmHg in 21 MSA patients). Plasma norepinephrine (92 ± 15 pg/mL) and plasma renin activity (0.3 ± 0.05 ng/mL per hour) were very low in a subset of patients with AF and supine hypertension. (Shannon et al., 1997). Our group has showed that a residual sympathetic function contributes to supine hypertension in patients with severe autonomic failure and that this effect is more prominent in patients with MSA than in those with PAF (Shannon et al., 2000). MSA patients had a marked depressor response to low infusion rates of trimethaphan, a ganglionic blocker; the response in PAF patients was more variable. At 1 mg/min, trimethaphan decreased supine SBP by 67 +/- 8 and 12 +/- 6 mmHg in MSA and PAF patients, respectively (P < 0.0001). MSA patients with supine hypertension also had greater SBP response to oral yohimbine, a central alpha2 receptor blocker, than PAF patients. Plasma norepinephrine decreased in both groups, but heart rate did not change in either group. This result suggests that residual sympathetic activity drives supine hypertension in MSA; in contrast, supine hypertension in PAF. It is hoped that from this study will emerge a complete picture of the supine hypertension of autonomic failure. Understanding the mechanism of this paradoxical hypertension in the setting of profound loss of sympathetic function will improve our approach to the treatment of hypertension in autonomic failure, and it could also contribute to our understanding of hypertension in general.
NCT01292694 ↗ Contribution of Angiotensin II to Supine Hypertension in Autonomic Failure Terminated Vanderbilt University Phase 1 2011-03-01 The purpose of this study is to test the hypothesis that angiotensin II plays a role in the supine hypertension of primary autonomic failure. To determine the contribution of angiotensin II to renin and blood pressure regulation in autonomic failure, patients with multiple system atrophy [MSA] or pure autonomic failure [PAF] and supine hypertension will undergo medication testing with the angiotensin II receptor blocker losartan. The investigators will compare the biochemical and hemodynamic effects between MSA and PAF patients. In a subset of patients, the investigators will also give the ACE inhibitor captopril. Our primary endpoint will be changes in plasma renin activity, and subsequent components of the circulating renin-angiotensin system, in response to angiotensin II blockade. Our secondary outcome will be changes in hemodynamic measures during administration of these drugs.
NCT01669434 ↗ Chronic Angiotensin Converting Enzyme Inhibitors in Intermediate Risk Surgery Completed University of Nebraska Phase 4 2015-06-01 Primary research hypothesis: Patients who continue their chronic ACEI therapy up to and including the morning of a non-cardiac, non-vascular surgery will experience more intraoperative hypotension than those who transiently hold their chronic ACEI preoperatively. Secondary research hypothesis #1: Patients who continue their chronic ACEI up to and including the morning of a non-cardiac, non-vascular surgery will experience better postoperative control of hypertension than those who transiently hold their chronic ACEI preoperatively. Secondary research hypothesis #2: Patients who continue their chronic ACEI up to and including the morning of a non-cardiac, non-vascular surgery will experience less acute renal failure than those who transiently hold their chronic ACEI preoperatively. Secondary research hypothesis #3: In the subgroup of patients with a preoperative systolic blood pressure less than 110 mmHg, those who continue their chronic ACEI therapy up to and including the morning of a non-cardiac, non-vascular surgery will experience more intraoperative hypotension than those who transiently hold their chronic ACEI preoperatively. Secondary research hypothesis #4: In the subgroup of patients above the age of 64, those who continue their chronic ACEI therapy up to and including the morning of a non-cardiac, non-vascular surgery will experience more intraoperative hypotension than those who transiently hold their chronic ACEI preoperatively.
NCT03389724 ↗ Prevention of Chemotherapy Induced Cardiotoxicity in Children With Bone Tumors and Acute Myeloid Leukemia Recruiting Children's Cancer Hospital Egypt 57357 Phase 3 2017-11-14 Prevention and early detection of chemotherapy-induced cardiotoxicity in children with bone tumors and Acute Myeloid Leukemia by giving capoten
NCT04878315 ↗ Bioequivalence Study Between Capoten Versus Captopril Reference Product in Healthy Adult Participants Under Fasting Conditions Not yet recruiting GlaxoSmithKline Phase 1 2021-12-10 This is a bioequivalence study to compare Capoten (test product [T]) versus captopril (reference product [R]) produced by Mylan Pharmaceuticals Spain, in healthy adult participants under fasting condition. Capoten is the registered trademark of SmithKline Beecham Egypt.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for CAPOTEN

Condition Name

Condition Name for CAPOTEN
Intervention Trials
Hypertension 3
Healthy Volunteers 1
Hypotension on Induction 1
Multiple System Atrophy 1
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Condition MeSH

Condition MeSH for CAPOTEN
Intervention Trials
Hypertension 2
Pure Autonomic Failure 2
Bone Neoplasms 1
Hypotension 1
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Clinical Trial Locations for CAPOTEN

Trials by Country

Trials by Country for CAPOTEN
Location Trials
United States 3
Egypt 1
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Trials by US State

Trials by US State for CAPOTEN
Location Trials
Tennessee 2
Nebraska 1
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Clinical Trial Progress for CAPOTEN

Clinical Trial Phase

Clinical Trial Phase for CAPOTEN
Clinical Trial Phase Trials
Phase 4 1
Phase 3 1
Phase 1 3
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Clinical Trial Status

Clinical Trial Status for CAPOTEN
Clinical Trial Phase Trials
Completed 2
Recruiting 1
Terminated 1
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Clinical Trial Sponsors for CAPOTEN

Sponsor Name

Sponsor Name for CAPOTEN
Sponsor Trials
Vanderbilt University 2
Vanderbilt University Medical Center 1
University of Nebraska 1
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Sponsor Type

Sponsor Type for CAPOTEN
Sponsor Trials
Other 5
Industry 1
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