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Cardiovascular HealthBERSNCT07666685

Beetroot Extract and Quality of Life in Adults Aged 75 and Over

A study testing Beetroot Extract Supplementation in people with Cardiovascular Health and Functional Health, run by Fundacion Miguel Servet at 1 site in Spain.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The increasing number of adults aged 75 years and older highlights the need for effective, low-cost interventions to preserve cardiovascular health, functional independence, and cognitive performance and to support healthy aging. Read more about this study

Who is it for?
Ages 75 years and olderHealthy volunteers can take part
What is being tested?
Beetroot Extract Supplementation
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
120 participants
Where
1 siteSpain
Study dates
24 Mar 2026to Nov 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

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 75 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Adults aged 75 years and older recruited from the Geriatrics Service of the Hospital Universitario de Navarra (HUN) or primary care settings.
  • Ability to ambulate independently.
  • Ability to communicate effectively.
  • Ability to tolerate physical exercise.
  • Barthel Index score greater than 60 points.

Who cannot join

  • Refusal or inability of the participant, caregiver, or legal guardian to provide written informed consent.
  • Advanced or severe dementia (Global Deterioration Scale [GDS] stages 6-7).
  • Unstable medical condition or terminal illness with a life expectancy of less than 6 months.
  • Ischemic heart disease or congestive heart failure.
  • Severe renal insufficiency.
  • Hypotension.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Nicolas Martinez-Velilla, Md-PhD contact

00 34 848422222

nicolas.martinez.velilla@navarrra.es

Fabricio Zambom-Ferraresi, PhD contact

00 34 848422222

fabricio.zambom.ferraresi@navarra.es

Spain1 site, 1 recruiting
  • Hospital Universitario de Navarra

    Pamplona, Navarre, 31008

    Recruiting

Other trials in Spain

About this study

Official title: Assessment of the Benefits of Beetroot Extract for Improving the Quality of Life of Older People: a Randomised Clinical Trial.

The increasing number of adults aged 75 years and older highlights the need for effective, low-cost interventions to preserve cardiovascular health, functional independence, and cognitive performance and to support healthy aging. Beetroot extract (BE), derived from "Beta vulgaris", contains high levels of inorganic nitrate and other bioactive compounds that may positively influence vascular and neuromuscular function. In parallel, multicomponent physical exercise is recognized as an effective strategy to improve physical and cognitive outcomes in older adults. However, evidence on the independent and combined effects of BE supplementation and structured exercise in very old adults remains limited.

This randomized controlled trial is designed to evaluate the effects of BE supplementation, alone and in combination with a multicomponent physical exercise program, on blood pressure, functional performance, and cognitive function in adults aged 75 years and older. Participants will be randomly assigned to one of four groups: BE supplementation, multicomponent exercise, combined BE supplementation and exercise, or a control condition, over a predefined intervention period. The exercise program will include strength, balance, mobility, and aerobic components specifically adapted to the abilities and safety requirements of old adults.

The primary outcomes of the study will assess changes in cardiovascular health, physical and functional performance, and cognitive function using standardized and validated assessment tools. Secondary outcomes will include additional indicators of physical capacity and health-related quality of life. This trial aims to provide clinically relevant evidence on whether BE supplementation, alone or in combination with multicomponent exercise, represents a practical and scalable intervention to improve cardiovascular, functional, and cognitive health in adults aged 75 years and older.

Being tested
Beetroot Extract Supplementation, Placebo group: nitrate-depleted beetroot juice
Keywords
beetroot extract, dietary nitrate, cardiovascular health, functional health, quality of life, cognitive function

What participants receive

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

  • Beetroot Extract SupplementationDietary supplement

    Participants receive daily supplementation with beetroot extract juice, with or without participation in a multicomponent physical exercise program, depending on group allocation. When applicable, the exercise program targets strength, balance, mobility, and aerobic capacity, and is supervised by trained professionals during the first 6 weeks and subsequently prescribed but not supervised for the following 6 weeks. This intervention aims to evaluate the independent and combined effects of beetroot extract supplementation and physical exercise on cardiovascular, functional, and cognitive outcomes in adults aged 75 years and older.

  • Placebo group: nitrate-depleted beetroot juiceDietary supplement

    Participants receive daily supplementation with nitrate-depleted beetroot juice, with or without participation in a multicomponent physical exercise program, according to group allocation. The placebo juice is derived from beetroot but has had its nitrate content removed, maintaining similar appearance, taste, and texture to the active supplement. When applicable, the exercise program targets strength, balance, mobility, and aerobic capacity and is supervised by trained professionals during the first 6 weeks, followed by a prescribed but unsupervised phase for the subsequent 6 weeks. This placebo-controlled intervention is designed to isolate the effects of dietary nitrate from beetroot extract and to evaluate the independent and combined effects of physical exercise on cardiovascular, functional, and cognitive outcomes in adults aged 75 years and older.

Study groups in NCT07666685
Study groupRoleWhat they receive
Placebo Control GroupPlacebo comparatorParticipants receive a placebo (nitrate-depleted beetroot juice) and continue with their usual daily activities without any additional intervention.
Receives: Dietary Supplement: Placebo group: nitrate-depleted beetroot juice
Beetroot Extract SupplementationExperimentalParticipants receive daily supplementation with beetroot extract juice and continue with their usual daily activities.
Receives: Dietary Supplement: Beetroot Extract Supplementation
Beetroot Extract Plus Multicomponent ExerciseExperimentalParticipants engage in a multicomponent physical exercise program, supervised during the first 6 weeks and then prescribed but not supervised for the following 6 weeks, combined with daily supplementation of beetroot extract juice.
Receives: Dietary Supplement: Beetroot Extract Supplementation
Placebo Plus Multicomponent ExerciseActive comparatorParticipants engage in a multicomponent physical exercise program, supervised during the first 6 weeks and then prescribed but not supervised for the following 6 weeks, combined with placebo supplementation (nitrate-depleted beetroot juice).
Receives: Dietary Supplement: Placebo group: nitrate-depleted beetroot juice

What is being measured

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

  1. Blood Pressure

    Blood pressure (systolic and diastolic) will be measured three times in a row, and the average of the three readings will be calculated.

    Measured: At baseline - 6 weeks - 12 weeks

  2. Heart rate

    Heart rate will be measured at rest, after the 6-minute walk test, and then 3 minutes after the test has finished.

    Measured: [Time Frame: Baseline - 6 weeks and 12 weeks]

  3. Stroop Test

    This test measures cognitive control and attention by asking individuals to name the color of a word rather than the word itself. It evaluates the ability to manage interference between conflicting information.

    Measured: At baseline - 6 weeks - 12 weeks

  4. Symbol Digit Modalities Test (SDMT)

    This test assesses processing speed, attention, and working memory by requiring individuals to match symbols with corresponding numbers under time pressure. Faster and more accurate performance indicates better cognitive functioning.

    Measured: At Baseline - 6 weeks - 12 weeks

  5. Trail Making Test - A (TMT-A)

    This test evaluates visual attention and task switching by asking individuals to connect a sequence of numbers (Part A). It measures cognitive flexibility, speed, and executive function.

    Measured: At baseline - 6 weeks - 12 weeks

  6. 6 minute walk test (6MWT)

    This test measures functional exercise capacity by assessing how far a person can walk in six minutes on a flat surface. It reflects endurance and helps evaluate cardiovascular, respiratory, and musculoskeletal function.

    Measured: At baseline - 6 weeks - 12 weeks

  7. Short Physical Performance Battery (SPPB)

    Physical Function: Assessed using the Short Physical Performance Battery (SPPB), which combines balance, gait velocity, and leg strength as a single score on a 0 (worst) to 12 (best scale)

    Measured: At baseline - 6 weeks - 12 weeks

  8. Strength

    Handgrip strength and maximal concentric strength (leg press, chest press, knee extension, seated row machine). Changes in "1RM", defined as the maximum resistance/load a person can move in one repetition of an exercise will be assessed. These values are mesured in Kilograms and results are individualized.

    Measured: At baseline - 6 weeks - 12 weeks

  9. Quality of life (QoL)

    Measurment of quality of life using EQ5D-3L, the patients indicate their health state by choosing one level for each of the five dimensions, creating a 5-digit code representing 243 possible health states. EQ VAS, includes a vertical Visual Analogue Scale (0-100) where patients rate their self-rated health, with 100 being the "best imaginable health state". Utility. The responses can be converted into a single index value (utility score) using country-specific valuation sets, where 1 represents full health and 0 represents death.

    Measured: At baseline - 12 weeks

  10. Medication Use (Polypharmacy and Psychotropic Drugs)

    Number and type of medications will be recorded. Polypharmacy will be defined as the use of ≥5 medications. Psychotropic drug use and medications related to comorbid or intercurrent conditions (e.g., antibiotics) will also be documented

    Measured: At baseline - 12 weeks

  11. Sleep Health Index (SATED)

    SATED : This questionnaire assesses sleep health across five dimensions: Satisfaction, Alertness, Timing, Efficiency, and Duration. It provides a brief evaluation of overall sleep quality and habits.

    Measured: At baseline - 12 weeks

  12. Nutritional Status

    Mini Nutritional Assessment (MNA) ranges from normal nutritional status (24-30points), risk of malnutrition (17-23.5points), or malnourished(<17points).

    Measured: At baseline

  13. Barthel Index

    Barthel Index of independence during activities of dailyliving (ADLs) ranges from 0 (severe functional dependence) to 100 (functional independence).

    Measured: At baseline

  14. International Physical Activity Questionnaire (IPAQ)

    This questionnaire measures physical activity levels by asking about the frequency and duration of different intensities of activity. It is used to estimate total physical activity and categorize individuals into activity levels.

    Measured: At baseline

  15. Mini-Mental State Examination (MMSE)

    This test is a brief screening tool used to assess cognitive function, including orientation, memory, attention, language, and visuospatial skills. It helps identify cognitive impairment and monitor changes over time.

    Measured: At baseline

Secondary outcomes (3)
  1. Continuous Glucose Monitoring

    Continuous Glucose Monitoring (FreeStyle Libre 2): This system measures glucose levels continuously through a small sensor placed on the skin, providing real-time data without frequent finger pricks. It helps track glucose trends and fluctuations, supporting better diabetes management and treatment decisions.

    Measured: During the first 15 days

  2. Laboratory Parameters: Blood Nitrate and Nitric Oxide Assessment

    Blood Nitrate and Nitric Oxide Assessment: This measurement evaluates nitric oxide (NO) bioavailability by analyzing changes in blood nitrate levels, a stable indirect marker of NO production, typically expressed in µmol/L. . Blood samples (10-20 mL) will be collected alongside routine clinical testing using Vacutainer tubes (EDTA, citrate, or serum tubes as appropriate). Samples will be left upright for 10 minutes and centrifuged at 3000 rpm for 15 minutes to obtain serum and plasma for analysis. Aliquots will be stored at -80°C for future specialised analyses, including flow cytometry.

    Measured: At baseline - 6 weeks - 12 weeks

  3. Body Composition by Bioimpedance

    Body Composition by Bioimpedance (BIA 101 BIVA® PRO): This method assesses body composition by measuring electrical impedance through a two-electrode system, providing estimates of body water, fat mass, and fat-free mass. It also uses bioelectrical impedance vector analysis (BIVA) to evaluate hydration status and cellular health, offering insights into nutritional and physiological condition.

    Measured: At baseline - 6 weeks - 12 weeks

Timeline

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

  1. First posted24 Jun 2026
  2. Study start24 Mar 2026
  3. Primary completionOct 2027 (estimated)
  4. Study completionNov 2027 (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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07666685
Sponsor's protocol ID
BERS
Acronym
BERS
Status last verified
Jun 2026
First submitted
26 May 2026
Last updated
30 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Beetroot Extract Supplementation in people with Cardiovascular Health and Functional Health, run by Fundacion Miguel Servet at 1 site in Spain.

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 6 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: looking for participants now, as of the sponsor's last update on 30 Jun 2026. 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 Spain. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Nicolas Martinez-Velilla, Md-PhD (00 34 848422222, nicolas.martinez.velilla@navarrra.es), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Blood Pressure (time frame: At baseline - 6 weeks - 12 weeks). The study lists 15 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 30 Jun 2026.

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