- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02520687
Effects of Dietary Nitrate in Hypertensive Pregnant Women
July 18, 2017 updated by: Dr Jenny Myers, University of Manchester
Feasibility Study on the Effects of Dietary Nitrate on Cardiovascular Function in Hypertensive Pregnant Women
High blood pressure in pregnancy affects around 10% of pregnancies, and is associated with serious adverse outcomes for both mother and baby.
Treatment options for the management of high blood pressure in pregnancy are currently limited.
Studies in non-pregnant individuals have shown that supplementation with dietary nitrate, using beetroot juice, can significantly lower blood pressure and improve blood flow.
This study aims to investigate whether supplementation with dietary nitrate (via beetroot juice) can improve blood pressure regulation in pregnant women with chronic high blood pressure, and will also determine whether this can improve blood flow across the placenta.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
40
Phase
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Manchester, United Kingdom, M13 9WL
- Maternal and Fetal Health Research Centre
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
16 years and older (Child, Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Female
Description
Inclusion Criteria:
- Women diagnosed with chronic hypertension (systolic blood pressure of 130-144 mmHg and/or diastolic blood pressure of 80-94 mmHg).
- Between 22 - 35+6 weeks gestation
Exclusion Criteria:
- Multi-fetal pregnancy
- Currently taking anti-hypertensive medication
- Pre-existing diabetes (Type 1 or Type 2)
- Lacking ability to consent
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Dietary nitrate, beetroot juice
Once daily 70mL dose of beetroot juice, containing 400mg inorganic nitrate, for 7 consecutive days.
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200mls daily for seven days
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Placebo Comparator: Nitrate-depleted beetroot juice
Once daily 70mL dose of beetroot juice, depleted of nitrate, for 7 consecutive days.
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200mls daily for seven days
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change in clinic blood pressure (compared to baseline) between treatment and placebo groups
Time Frame: The outcome will be determined after 7 days treatment (compared to baseline)
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The outcome will be determined after 7 days treatment (compared to baseline)
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Recruitment rates
Time Frame: Across study (18 months)
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Across study (18 months)
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Uterine artery blood flow (compared to baseline)
Time Frame: The outcome will be determined after 7 days treatment (compared to baseline)
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The outcome will be determined after 7 days treatment (compared to baseline)
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Umbilical artery blood flow (compared to baseline)
Time Frame: The outcome will be determined after 7 days treatment (compared to baseline)
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The outcome will be determined after 7 days treatment (compared to baseline)
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Changes in plasma and salivary nitrate concentrations
Time Frame: The outcome will be determined after 7 days treatment (compared to baseline)
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The outcome will be determined after 7 days treatment (compared to baseline)
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Changes in plasma and salivary nitrite concentrations
Time Frame: The outcome will be determined after 7 days treatment (compared to baseline)
|
The outcome will be determined after 7 days treatment (compared to baseline)
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
September 1, 2015
Primary Completion (Actual)
February 1, 2017
Study Completion (Actual)
February 1, 2017
Study Registration Dates
First Submitted
August 5, 2015
First Submitted That Met QC Criteria
August 8, 2015
First Posted (Estimate)
August 13, 2015
Study Record Updates
Last Update Posted (Actual)
July 21, 2017
Last Update Submitted That Met QC Criteria
July 18, 2017
Last Verified
July 1, 2017
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 15136
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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Queen Mary University of LondonCompleted
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Bournemouth UniversityInstitute of Bioengineering and Bioimaging (IBB); University of Portsmouth; Loughborough...Completed
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Universidad Autonoma de MadridUniversidad Politecnica de Madrid; Camilo Jose Cela UniversityCompletedNitrates | Nutrition | Physical Performance | Sport Physiology | Elite Athletes