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Arterial HypertensionNCT05384340

NO3-rich Beet Juice and Exercise on Postmenopausal Women Cardiovascular Health

A study testing Beetroot juice rich in nitrate in people with Arterial Hypertension and Postmenopausal; Menorrhagia, run by University of Sao Paulo at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In the context of physical exercise, there is no evidence of the acute and continued use of beetroot juice with a previously recommended dose of nitrate (NO3) (>300mg) on the cardiovascular performance of hypertensive and postmenopausal women. Read more about this study

Who is it for?
Ages 50 to 65 years, women only
What is being tested?
Beetroot juice rich in nitrate
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteBrazil
Study dates
31 May 2022to 30 Jul 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women with 50 to 65 old years;
  • Physically inactive;
  • Postmenopausal diagnosis (amenorrhea for 12 months or more);
  • Arterial hypertension diagnosis (previously);
  • Systolic blood pressure values >120mmHg up to 159mmHg and diastolic blood pressure values >80mmHg up to 99mmHg.

Who cannot join

  • Previous history of acute myocardial infarction and/or stroke;
  • Allergy or intolerance to nitrate, gluten, or milk;
  • Medications (proton pump inhibitors, beta-blockers, calcium channels antagonists).

Trial locations and contacts

1 site in 1 country.

Cicero JR Benjamim, PhD Student contact

+5587988621194

benjamim.nutricao@gmail.com

Brazil1 site, 1 recruiting
  • EEFERP - USP / Laboratório de Fisiologia do Exercício e Metabolismo

    Ribeirão Preto, São Paulo

    Cicero Jonas R. Benjamim, PhD Student, 87988621194, benjamim.nutricao@gmail.com

    Recruiting

Other trials in Brazil

About this study

Official title: Nitrate-rich Beet Juice Intake and Aerobic Exercise on Cardiovascular Health of Postmenopausal Women With Arterial Hypertension

In the context of physical exercise, there is no evidence of the acute and continued use of beetroot juice with a previously recommended dose of nitrate (NO3) (>300mg) on the cardiovascular performance of hypertensive and postmenopausal women. We will investigate the effects of beetroot juice rich in NO3 acutely (first day: 140mL/800mg) and during a week with daily doses (second to the seventh day: 70mL/400mg) on blood pressure, heart rate (HR), cardiac autonomic control, EF, inflammatory, hormonal, and stress biomarkers oxidative stress and enzymes involved in nitric oxide synthesis and mitochondrial regulation, under resting conditions, as well as mediated by submaximal aerobic exercise sessions. Through a randomized, crossover, triple-blind, placebo-controlled clinical trial, 20 physically inactive hypertensive women will undergo an acute and 7-day trial, each with two intervention protocols: 1) placebo and 2) beetroot; in which will ingest beet juice with or without NO3 in its composition with a 7-day washout interval. On collection days, exercise will be performed on a treadmill for 40 minutes at a speed corresponding to 65-70% of VO2peak. The collection of variables (cardiovascular, autonomic, and blood samples for molecular analyses) of the study will take place at rest (120 minutes after ingestion of the intervention), during exercise (40 minutes), and in the effort recovery stage (during 65 minutes) based on previously validated protocols. The collections were arranged so that the measurement of one variable does not interfere with the other and that they have adequate intervals between them.

Being tested
Beetroot juice rich in nitrate
Medical subject headings
Hypertension, Menorrhagia, Cardiovascular Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Beetroot juice rich in nitrateDietary supplement

    On the first day, an acute test will be carried out with beet juice rich in nitrate, in which two units of juice will be provided, totaling 140 ml (800 mg of nitrate) for each protocol. That is, each participant will receive 2 units of juice bottles. From the second to the seventh day, participants will receive 6 units of vials of the juice corresponding to the first intervention on the first visit to the laboratory and will drink one vial a day for a week. Of the 8 units (100%), six bottles (75%) will be provided for the participants to take home. On the seventh day of the intervention, the participants will return to the laboratory for the consumption of the seventh and last bottle of juice. Between one protocol and another, a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Study groups in NCT05384340
Study groupRoleWhat they receive
Beet protocolExperimentalAcute intervention: 1st day [140 ml - Beet It Juice, 800mg nitrate/day] Continued intervention: 2nd to 7th day [70 ml - Beet It Juice, 400mg nitrate/day] Exercise intervention [Treadmill - 40 minutes duration, 65% - 70% VO2 Peak]: Acute [Just on day] / Continued [First and latest day] Washout: 7 days
Receives: Dietary Supplement: Beetroot juice rich in nitrate
Placebo protocolPlacebo comparatorAcute intervention (1st day): [140 ml - Beet It Juice, 0mg nitrate/day] Continued intervention (2nd to 7th day): [70 ml - Beet It Juice, 0mg nitrate/day] Exercise intervention [Treadmill - 40 minutes duration, 65% - 70% VO2 Peak]: Acute [Just on day] / Continued [First and latest day] Washout: 7 days
Receives: Dietary Supplement: Beetroot juice rich in nitrate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Values of systolic and diastolic blood pressure (mmHg)

    Measured: up to 2 years

Secondary outcomes (8)
  1. Values of heart rate variability (ms)

    Measured: up to 2 years

  2. Values of heart rate (beats per minute)

    Measured: up to 2 years

  3. Macrovascular function (Flow mediated dilatation%)

    Measured: up to 2 years

  4. Plasmatic concentrations of nitrate and nitrite (mmol/L)

    Measured: up to 2 years

  5. Blood concentration of Adiponectin (ug/mL)

    Measured: up to 2 years

  6. Blood concentration of Hormone-sensitive lipase (mmol/min per kg DM)

    Measured: up to 2 years

  7. Blood concentrations of C-reactive protein, Interleukin-6 and Interleukin-10 (ng/mL)

    Measured: up to 2 years

  8. Blood concentrations of Epinephrine and Norepinephrine (pg/mL)

    Measured: up to 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 May 2022
  2. Study start31 May 2022
  3. Primary completion30 Jun 2024 (estimated)
  4. Study completion30 Jul 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05384340
Sponsor's protocol ID
BeetMPH5070
Status last verified
Jan 2023
First submitted
17 Apr 2022
Last updated
12 Jan 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Benjamim CJR, da Silva LSL, Sousa YBA, Rodrigues GDS, Pontes YMM, Rebelo MA, Goncalves LDS, Tavares SS, Guimaraes CS, da Silva Sobrinho AC, Tanus-Santos JE, Gualano B, Bueno Junior CR. Acute and short-term beetroot juice nitrate-rich ingestion enhances cardiovascular responses following aerobic exercise in postmenopausal women with arterial hypertension: A triple-blinded randomized controlled trial. Free Radic Biol Med. 2024 Feb 1;211:12-23. doi: 10.1016/j.freeradbiomed.2023.11.039. Epub 2023 Dec 11.

    PubMed 38092272
  • Benjamim CJR, Sousa YBA, Porto AA, de Moraes Pontes YM, Tavares SS, da Silva Rodrigues G, da Silva LSL, da Silva Goncalves L, Guimaraes CS, Rebelo MA, da Silva Sobrinho AC, Tanus-Santos JE, Valenti VE, Gualano B, Bueno Junior CR. Nitrate-rich beet juice intake on cardiovascular performance in response to exercise in postmenopausal women with arterial hypertension: study protocol for a randomized controlled trial. Trials. 2023 Feb 7;24(1):94. doi: 10.1186/s13063-023-07117-2.

    PubMed 36750904

Questions about this trial

What is this clinical trial studying?

A study testing Beetroot juice rich in nitrate in people with Arterial Hypertension and Postmenopausal; Menorrhagia, run by University of Sao Paulo at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 12 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Cicero JR Benjamim, PhD Student (+5587988621194, benjamim.nutricao@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Values of systolic and diastolic blood pressure (mmHg) (time frame: up to 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05384340, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jan 2023.

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