Nctid:
NCT00001329
Payload:
{"FullStudy"=>{"Rank"=>498038, "Study"=>{"DerivedSection"=>{"MiscInfoModule"=>{"VersionHolder"=>"June 24, 2024"}, "ConditionBrowseModule"=>{"ConditionMeshList"=>{"ConditionMesh"=>[{"ConditionMeshId"=>"D000009422", "ConditionMeshTerm"=>"Nervous System Diseases"}, {"ConditionMeshId"=>"D000001342", "ConditionMeshTerm"=>"Autonomic Nervous System Diseases"}, {"ConditionMeshId"=>"D000054969", "ConditionMeshTerm"=>"Primary Dysautonomias"}, {"ConditionMeshId"=>"D000006973", "ConditionMeshTerm"=>"Hypertension"}]}, "ConditionAncestorList"=>{"ConditionAncestor"=>[{"ConditionAncestorId"=>"D000014652", "ConditionAncestorTerm"=>"Vascular Diseases"}, {"ConditionAncestorId"=>"D000002318", "ConditionAncestorTerm"=>"Cardiovascular Diseases"}]}, "ConditionBrowseLeafList"=>{"ConditionBrowseLeaf"=>[{"ConditionBrowseLeafId"=>"M10024", "ConditionBrowseLeafName"=>"Hypertension", "ConditionBrowseLeafAsFound"=>"Hypertension", "ConditionBrowseLeafRelevance"=>"high"}, {"ConditionBrowseLeafId"=>"M4643", "ConditionBrowseLeafName"=>"Autonomic Nervous System Diseases", "ConditionBrowseLeafAsFound"=>"Autonomic Nervous System Diseases", "ConditionBrowseLeafRelevance"=>"high"}, {"ConditionBrowseLeafId"=>"M27979", "ConditionBrowseLeafName"=>"Primary Dysautonomias", "ConditionBrowseLeafAsFound"=>"Autonomic Nervous System Diseases", "ConditionBrowseLeafRelevance"=>"high"}, {"ConditionBrowseLeafId"=>"M27980", "ConditionBrowseLeafName"=>"Pure Autonomic Failure", "ConditionBrowseLeafRelevance"=>"low"}, {"ConditionBrowseLeafId"=>"M17400", "ConditionBrowseLeafName"=>"Vascular Diseases", "ConditionBrowseLeafRelevance"=>"low"}, {"ConditionBrowseLeafId"=>"T4832", "ConditionBrowseLeafName"=>"Pure Autonomic Failure", "ConditionBrowseLeafRelevance"=>"low"}]}, "ConditionBrowseBranchList"=>{"ConditionBrowseBranch"=>[{"ConditionBrowseBranchName"=>"Heart and Blood Diseases", "ConditionBrowseBranchAbbrev"=>"BC14"}, {"ConditionBrowseBranchName"=>"All Conditions", "ConditionBrowseBranchAbbrev"=>"All"}, {"ConditionBrowseBranchName"=>"Nervous System Diseases", "ConditionBrowseBranchAbbrev"=>"BC10"}, {"ConditionBrowseBranchName"=>"Rare Diseases", "ConditionBrowseBranchAbbrev"=>"Rare"}]}}, "InterventionBrowseModule"=>{"InterventionBrowseLeafList"=>{"InterventionBrowseLeaf"=>[{"InterventionBrowseLeafId"=>"M12575", "InterventionBrowseLeafName"=>"Norepinephrine", "InterventionBrowseLeafRelevance"=>"low"}, {"InterventionBrowseLeafId"=>"M17752", "InterventionBrowseLeafName"=>"Yohimbine", "InterventionBrowseLeafRelevance"=>"low"}, {"InterventionBrowseLeafId"=>"T332", "InterventionBrowseLeafName"=>"Yohimbe", "InterventionBrowseLeafRelevance"=>"low"}]}, "InterventionBrowseBranchList"=>{"InterventionBrowseBranch"=>[{"InterventionBrowseBranchName"=>"Vasoconstrictor Agents", "InterventionBrowseBranchAbbrev"=>"VaCoAg"}, {"InterventionBrowseBranchName"=>"All Drugs and Chemicals", "InterventionBrowseBranchAbbrev"=>"All"}, {"InterventionBrowseBranchName"=>"Urological Agents", "InterventionBrowseBranchAbbrev"=>"Urol"}, {"InterventionBrowseBranchName"=>"Herbal and Botanical", "InterventionBrowseBranchAbbrev"=>"HB"}]}}}, "ProtocolSection"=>{"DesignModule"=>{"StudyType"=>"Observational", "EnrollmentInfo"=>{"EnrollmentCount"=>"50"}}, "StatusModule"=>{"OverallStatus"=>"Completed", "StartDateStruct"=>{"StartDate"=>"September 1992"}, "ExpandedAccessInfo"=>{"HasExpandedAccess"=>"No"}, "StatusVerifiedDate"=>"September 2002", "CompletionDateStruct"=>{"CompletionDate"=>"September 2002"}, "LastUpdateSubmitDate"=>"March 3, 2008", "StudyFirstSubmitDate"=>"November 3, 1999", "StudyFirstSubmitQCDate"=>"November 3, 1999", "LastUpdatePostDateStruct"=>{"LastUpdatePostDate"=>"March 4, 2008", "LastUpdatePostDateType"=>"Estimate"}, "StudyFirstPostDateStruct"=>{"StudyFirstPostDate"=>"November 4, 1999", "StudyFirstPostDateType"=>"Estimate"}}, "OversightModule"=>{}, "ConditionsModule"=>{"KeywordList"=>{"Keyword"=>["Yohimbine", "Catecholamines", "Sympathoadrenal Response", "Sympathetic Nervous System", "Stress", "Hypertension", "Autonomic Failure"]}, "ConditionList"=>{"Condition"=>["Autonomic Nervous System Disease", "Healthy", "Hypertension"]}}, "ReferencesModule"=>{"ReferenceList"=>{"Reference"=>[{"ReferencePMID"=>"6630523", "ReferenceType"=>"background", "ReferenceCitation"=>"Goldstein DS, Horwitz D, Keiser HR, Polinsky RJ, Kopin IJ. Plasma l-[3H]norepinephrine, d-[14C]norepinephrine, and d,l-[3H]isoproterenol kinetics in essential hypertension. J Clin Invest. 1983 Nov;72(5):1748-58. doi: 10.1172/JCI111134."}, {"ReferencePMID"=>"2331039", "ReferenceType"=>"background", "ReferenceCitation"=>"Rea RF, Eckberg DL, Fritsch JM, Goldstein DS. Relation of plasma norepinephrine and sympathetic traffic during hypotension in humans. Am J Physiol. 1990 Apr;258(4 Pt 2):R982-6. doi: 10.1152/ajpregu.1990.258.4.R982."}, {"ReferencePMID"=>"3335637", "ReferenceType"=>"background", "ReferenceCitation"=>"Goldstein DS, Eisenhofer G, Stull R, Folio CJ, Keiser HR, Kopin IJ. Plasma dihydroxyphenylglycol and the intraneuronal disposition of norepinephrine in humans. J Clin Invest. 1988 Jan;81(1):213-20. doi: 10.1172/JCI113298."}]}}, "DescriptionModule"=>{"BriefSummary"=>"Brain and nerve cells communicate with each other by releasing and picking up chemicals called neurotransmitters. Norepinephrine is a neurotransmitter used by part of the nervous system activated during stress called the sympathetic nervous system. The sympathetic nervous system is involved with regulating blood pressure and pulse rate. Researchers believe the level norepinephrine in the blood can be used to measure activity of the sympathetic nervous system.\n\nThis study is designed to answer important questions about rates of release of norepinephrine into the blood stream, removal of released norepinephrine, and the sympathetic nervous system response to stress.\n\nResearchers will attempt to measure levels of norepinephrine and activity of the sympathetic nervous system in patients with high blood pressure, normal patients with family histories of high blood pressure, patients taking drugs that can effect levels of norepinephrine, and patients with diseases or conditions directly affecting the sympathetic nervous system.", "DetailedDescription"=>"In order to examine sympathetic nervous system function in neurocardiological disorders and catecholaminergic effects of dietary manipulations or neuropsychiatric drugs, the protocol calls for evaluations of the kinetics of 3H-norepinephrine or 3H-epinephrine in patients with hypertension, dysautonomias, or disorders thought to involve abnormal catecholaminergic function, and in normotensive normal volunteers. Apparent spillover and clearance rates are estimated based on the norepinephrine or epinephrine concentration during the infusion and their steady-state specific activities, under resting conditions and in response to physiological or pharmacological manipulations thought to affect sympathetic outflows."}, "EligibilityModule"=>{"Gender"=>"All", "StdAgeList"=>{"StdAge"=>["Child", "Adult", "Older Adult"]}, "HealthyVolunteers"=>"Accepts Healthy Volunteers", "EligibilityCriteria"=>"Must be greater than or equal to 18 years of age.\n\nMust not be pregnant or lactating."}, "IdentificationModule"=>{"NCTId"=>"NCT00001329", "BriefTitle"=>"Study of Norepinephrine Levels and Sympathetic Nervous System Activity", "Organization"=>{"OrgClass"=>"NIH", "OrgFullName"=>"National Institutes of Health Clinical Center (CC)"}, "OfficialTitle"=>"Plasma Catecholamine Kinetics", "OrgStudyIdInfo"=>{"OrgStudyId"=>"920259"}, "SecondaryIdInfoList"=>{"SecondaryIdInfo"=>[{"SecondaryId"=>"92-N-0259"}]}}, "ContactsLocationsModule"=>{"LocationList"=>{"Location"=>[{"LocationZip"=>"20892", "LocationCity"=>"Bethesda", "LocationState"=>"Maryland", "LocationCountry"=>"United States", "LocationFacility"=>"National Institute of Neurological Disorders and Stroke (NINDS)"}]}}, "SponsorCollaboratorsModule"=>{"LeadSponsor"=>{"LeadSponsorName"=>"National Institute of Neurological Disorders and Stroke (NINDS)", "LeadSponsorClass"=>"NIH"}}}}}}
