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Postmenopausal; MenorrhagiaNCT05820321

Effects of Dietary Nitrate Intake on Physical Performance of Middle-aged Women

A study testing Beetroot juice rich in nitrate and Beetroot juice NO3 depleted in people with Postmenopausal; Menorrhagia and Physical Inactivity, run by University of Sao Paulo at 2 sites 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 The sponsor has not verified this record for over two years, so it may be out of date.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

Through a randomized, crossover, triple-blind, placebo-controlled clinical trial, 15 physically inactive hypertensive women will participate a 8-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 8-day washout… 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 and Beetroot juice NO3 depleted
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
15 participants
Where
2 sitesBrazil
Study dates
1 Jul 2022to 31 Dec 2023
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

  • 50 to 65 years old
  • Physically inactive
  • Postmenopausal diagnosis (amenorrhea for 12 months or more);

Who cannot join

  • Smoking
  • Cardiac failure
  • Previous history of acute myocardial infarction and/or stroke;
  • Allergy or intolerance to nitrate, gluten, or milk;

Trial locations and contacts

2 sites in 1 country.

Brazil2 sites, 2 recruiting
  • Cicero Jonas Rodrigues Benjamim

    Ribeirão Preto, São Paulo, 05508-900

    Cicero JR Benjamim, 07775453372, jonasbenjamim@usp.br

    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: Effects of Dietary Nitrate Intake on Physical Performance of Middle-aged Women: a Randomized Trial

Through a randomized, crossover, triple-blind, placebo-controlled clinical trial, 15 physically inactive hypertensive women will participate a 8-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 8-day washout interval.

Being tested
Beetroot juice rich in nitrate, Beetroot juice NO3 depleted
Medical subject headings
Menorrhagia, Sedentary Behavior, Motor Activity

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

    The participant will intake beetroot juice rich in NO3 (400mg) during 8-days. On the eighth day of the intervention, 2 hours after intake the last bottle of juice, the participants will return to the laboratory for the performance tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

  • Beetroot juice NO3 depletedOther

    The participant will intake beetroot juice depleted in NO3. On the eighth day of the intervention, 2 hours after intake the last bottle of juice, the participants will to the laboratory for the performance tests evaluation. Before crossover protocol a 7-day washout interval will be given for the purification of the compounds provided by the protocols.

Study groups in NCT05820321
Study groupRoleWhat they receive
Experimental (Beetroot juice NO3)Active comparator8-day supplementation with beetroot juice rich in NO3 (400mg) during 8 days.
Receives: Dietary Supplement: Beetroot juice rich in nitrate
Placebo (Beetroot juice without NO3)Placebo comparator8-day supplementation with beetroot juice NO3 depleted during 8 days.
Receives: Other: Beetroot juice NO3 depleted

What is being measured

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

  1. Handgrip strength test (kgf)

    Measured: up to 2 years

Secondary outcomes (4)
  1. Six minute walk test (distance in meters)

    Measured: up to 2 years

  2. Arm curl test (repetitions)

    Measured: up to 2 years

  3. Sit-to-stand test (repetitions)

    Measured: up to 2 years

  4. 8-foot up and go test (seconds)

    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 posted19 Apr 2023
  2. Study start1 Jul 2022
  3. Primary completion20 Aug 2023 (estimated)
  4. Study completion31 Dec 2023 (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
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
15 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05820321
Sponsor's protocol ID
BEET-MS
Status last verified
Jun 2023
First submitted
27 Jan 2023
Last updated
13 Jun 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Benjamim CJR, Lopes da Silva LS, da Silva Goncalves L, Tasinafo Junior MF, Spellanzon B, Rebelo MA, Tanus-Santos JE, Bueno Junior CR. The effects of dietary nitrate ingestion on physical performance tests in 50-65 years old postmenopausal women: A pilot randomized, double-blind, placebo-controlled, and crossover study. Clin Nutr. 2024 Jul;43(7):1642-1646. doi: 10.1016/j.clnu.2024.05.031. Epub 2024 May 22.

    PubMed 38805867

Questions about this trial

What is this clinical trial studying?

A study testing Beetroot juice rich in nitrate and Beetroot juice NO3 depleted in people with Postmenopausal; Menorrhagia and Physical Inactivity, run by University of Sao Paulo at 2 sites 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 3 inclusion and 4 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 13 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Handgrip strength test (kgf) (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 NCT05820321, which also lists 1 linked publication.

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 13 Jun 2023.

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