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Cardiovascular and Autonomic Reactivity in Women With a History of Pre-eclampsia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00117546
Recruitment Status : Unknown
Verified July 2007 by Radboud University.
Recruitment status was:  Recruiting
First Posted : July 7, 2005
Last Update Posted : June 8, 2010
Information provided by:
Radboud University

Brief Summary:
A history of preeclampsia is associated with a low plasma volume and higher sympathetic activity. Methyldopa will suppress sympathetic activity to normal values. In this study, the researchers will test that effect on the total cardiovascular balance.

Condition or disease Intervention/treatment Phase
Preeclampsia Drug: alpha methyldopa Phase 4

Detailed Description:
This is a randomized double-blind placebo controlled cross-over study in formerly preeclamptic women with a contracted plasma volume. The researchers will test the effect of methyldopa on the cardiovascular balance and orthostatic tolerance in women with a history of preeclampsia and healthy controls.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 35 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double
Primary Purpose: Diagnostic
Official Title: Cardiovascular Performance and Autonomic Reactivity in Formerly Preeclamptic Women With a Contracted Plasma Volume (CAPACITY Trial)
Study Start Date : September 2005
Estimated Study Completion Date : December 2008

Intervention Details:
  • Drug: alpha methyldopa
    500 mg twice a day
    Other Name: Aldomet

Primary Outcome Measures :
  1. normalized plasma volume [ Time Frame: 1 month ]

Secondary Outcome Measures :
  1. increased orthostatic tolerance [ Time Frame: 1 month ]
  2. normalized cardiovascular balance [ Time Frame: 1 month ]
  3. venous capacitance [ Time Frame: 1 month ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Primiparous
  • History of preeclampsia
  • Low plasma volume

Exclusion Criteria:

  • Thrombophilia
  • Hypertension
  • Auto-immune disorder
  • Insulin dependent diabetes mellitus

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00117546

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Contact: M.E.A Spaanderman, MD, PhD +31 24 36 13401

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Radboud University Nijmegen Medical Center Recruiting
Nijmegen, Netherlands
Sponsors and Collaborators
Radboud University
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Principal Investigator: Ineke Krabbendam, MD Department of Obstetrics and Gynaecology, Radboud University Nijmegen Medical Centre
Layout table for additonal information Identifier: NCT00117546    
Other Study ID Numbers: 2004-155
First Posted: July 7, 2005    Key Record Dates
Last Update Posted: June 8, 2010
Last Verified: July 2007
Keywords provided by Radboud University:
plasma volume
sympathetic activity
cardiovascular system
Additional relevant MeSH terms:
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Hypertension, Pregnancy-Induced
Pregnancy Complications
Antihypertensive Agents
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Adrenergic alpha-2 Receptor Agonists
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action