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InflammationTAKEOVERNCT04676958

viTAmin K2 and rEcOVery From ExeRcise

A study testing Vitamin K2 and Micro-crystalline cellulose in people with Inflammation and Oxidative Stress, run by University of Glasgow at 2 sites in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of the current study, therefore, is to investigate the effects of vitamin K2 supplementation on the physiological responses to an acute bout of resistance exercise. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Inflammation, Oxidative Stress, Vitamin K
What is being tested?
Vitamin K2 and Micro-crystalline cellulose
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
2 sitesUnited Kingdom
Study dates
1 Apr 2021to 1 Jul 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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Participant is able and willing to sign the Informed Consent From
  • No plans to change lifestyle (activity and nutrition) during the study period
  • Older group (n=40): 65 years of age or older.
  • Younger group (n=40): Aged 18-40 years

Who cannot join

  • Not currently, or in the last year, participating in more than 1h per week of vigorous aerobic physical activity or any resistance exercise
  • BMI > 30 kg/m2
  • diabetes
  • severe cardiovascular disease
  • seizure disorders
  • liver disease
Show all 15Show fewer
  • uncontrolled hypertension (>150/90mmHg at baseline measurement)
  • cancer or cancer that has been in remission <5 years
  • ambulatory impairments which would limit ability to perform assessments of muscle function
  • dementia
  • currently taking Vitamin K2 supplements
  • currently taking Vitamin K antagonists/anticoagulants (e.g. warfarin)
  • current smoking
  • history of drug abuse
  • taking medication known to affect muscle (e.g. steroids).

Trial locations and contacts

2 sites in 1 country.

United Kingdom2 sites
  • University of Glasgow

    Glasgow, G12 8TA

  • Stuart Robert Gray

    Glasgow

Other trials in United Kingdom

About this study

Official title: Effects of Vitamin K2 on Recovery From Muscle Damaging Exercise in Young and Older Adults

The aim of the current study, therefore, is to investigate the effects of vitamin K2 supplementation on the physiological responses to an acute bout of resistance exercise.

Being tested
Vitamin K2, Micro-crystalline cellulose
Medical subject headings
Inflammation, Motor Activity

What participants receive

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

  • Vitamin K2Dietary supplement

    Vitamin K2

  • Micro-crystalline celluloseDietary supplement

    Micro-crystalline cellulose

Study groups in NCT04676958
Study groupRoleWhat they receive
PlaceboPlacebo comparator380 mg capsule/day micro-crystalline cellulose
Receives: Dietary Supplement: Micro-crystalline cellulose
Vitamin K2Active comparator380 mg capsule/day micro-crystalline cellulose including 240ug/day Vitamin K2
Receives: Dietary Supplement: Vitamin K2

What is being measured

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

  1. Change in post exercise recovery of muscle strength

    Muscle strength (MVC) of the knee extensor muscles will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

Secondary outcomes (11)
  1. Change in pain free range of motion during knee extension exercise

    The range of motion which is pain free will be measured during knee extension using a goniometer before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

  2. Change in post exercise recovery of functional abilities

    Time to complete 5 chair rises will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

  3. Change in post exercise recovery of sEMG activity

    Quadriceps muscle sEMG will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

  4. Change in post exercise interleukin-6

    Circulating interleukin-6 will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

  5. Change in post exercise peroxiredoxin 3 redox state

    Circulating peroxiredoxin 3 redox state will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 12 weeks

  6. Change in vitamin K levels

    Vitamin K will be measured in baseline and 12 week samples

    Measured: Change from baseline to 12 weeks

  7. Change in Carboxylated Osteocalcin levels

    Carboxylated Osteocalcin will be measured in baseline and 12 week samples

    Measured: Change from baseline to 12 weeks

  8. Change in uncarboxylated Osteocalcin levels

    uncarboxylated Osteocalcin will be measured in baseline and 12 week samples

    Measured: Change from baseline to 12 weeks

  9. Change in carboxylated matrix gla-protein levels

    carboxylated matrix gla-protein will be measured in baseline and 12 week samples

    Measured: Change from baseline to 12 weeks

  10. Change in dephosphorylated-uncarboxylated matrix gla-protein levels

    dephosphorylated-uncarboxylated matrix gla-protein will be measured in baseline and 12 week samples

    Measured: Change from baseline to 12 weeks

  11. Change in post exercise F2 isoprostanes

    Circulating F2 isoprostanes will be measured before and after (3h, 24h, 48h, 72h) an acute bout of resistance exercise

    Measured: Change from baseline to 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 posted21 Dec 2020
  2. Study start1 Apr 2021
  3. Primary completion1 Jul 2023
  4. Study completion1 Jul 2023

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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04676958
Sponsor's protocol ID
200190189
Acronym
TAKEOVER
Status last verified
Nov 2023
First submitted
24 Nov 2020
Last updated
28 Nov 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Lithgow H, Johnston L, Ho FK, Celis-Morales C, Cobley J, Raastad T, Hunter AM, Lees JS, Mark PB, Quinn TJ, Gray SR. Protocol for a randomised controlled trial to investigate the effects of vitamin K2 on recovery from muscle-damaging resistance exercise in young and older adults-the TAKEOVER study. Trials. 2022 Dec 20;23(1):1026. doi: 10.1186/s13063-022-06937-y.

    PubMed 36539791

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin K2 and Micro-crystalline cellulose in people with Inflammation and Oxidative Stress, run by University of Glasgow at 2 sites in United Kingdom.

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 4 inclusion and 15 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: finished, as of the sponsor's last update on 28 Nov 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 United Kingdom. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in post exercise recovery of muscle strength (time frame: Change from baseline to 12 weeks). 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 NCT04676958, 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 28 Nov 2023.

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viTAmin K2 and rEcOVery From ExeRcise (NCT04676958) | AzTrials