AzTrials
AzTrials

Monckeberg Medial Calcific SclerosisMediaSportNCT01577576

Mechanical Stress Effects on the Cardiovascular Adaptations of Peripheral Arterial Calcifications Among Athletes

An observational study of Monckeberg Medial Calcific Sclerosis, run by Centre Hospitalier Universitaire de Nīmes at 2 sites in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

The main objective of this study is to obtain data for the integrated analysis of morphological, functional and biomechanical parameters pertaining to lower limb arteries in various categories of elite athletes (without cardiovascular risk and practicing high- or low-impact aerobic activities which preferentially… Read more about this study

Who is it for?
Ages 25 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Monckeberg Medial Calcific Sclerosis
How many people
56 participants
Where
2 sitesFrance
Study dates
Sep 2012to Mar 2015
Phase
Observational
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 25 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: The study population is composed of three groups of healthy volunteers: (1) high impact lower-limb sports (marathon or trail); (2) low-impact lower-limb sports and (3) sedentary volunteers. All volunteers are between the ages of 25 and 40. The groups will be matched by age and sex. Athletic groups will be matched according to years of intensive practice and hours of training.

Who may be able to join

  • The volunteer must have given his/her informed and signed consent
  • The volunteer must be insured or beneficiary of a health insurance plan
  • Volunteers without cardiovascular disease, glucose regulation disorders or known renal disease
  • Ongoing athletic activity for the past 10 years
  • Athletic activity at the regional level for the past 5 years
  • Practices one of the three following sports: marathon, trail running, cycling.

Who cannot join

  • The volunteer is participating in another study
  • The volunteer is in an exclusion period determined by a previous study
  • The volunteer is under judicial protection, under tutorship or curatorship
  • The volunteer refuses to sign the consent
  • It is impossible to correctly inform the volunteer
  • The volunteer is pregnant, parturient, or breastfeeding
Show all 16Show fewer
  • Tobacco use
  • Contraindications for the practice of physical activity (joint, heart or other)
  • Intercurrent pathology
  • First degree family history of cardiovascular disease
  • Known dyslipidemia (including cholesterol)
  • Glucose tolerance abnormalities (prediabetes or diabetes)
  • Treatment with certain drugs used for treating erectile dysfunction: Sildefanil (Viagra), Tadalafil (Cialis), Vardenafil (Levitra) and yohimbine (Yohimbine Houde and Yocoral)
  • More than two hours of athletic activity per week
  • History of intense athletic training
  • Body mass index >= 25 kg/m^2

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • Université d'Avignon, Faculté des Sciences

    Avignon, 84000

  • CHU de Nîmes - Hôpital Universitaire Carémeau

    Nîmes, 30029

Other trials in France

About this study

Official title: Morphological, Biomechanical and Functional Properties of the Arterial Wall of Athletes: Impact and Consequences of Mechanical Stress on the Cardiovascular Adaptations of Peripheral Arterial Calcifications

The main objective of this study is to obtain data for the integrated analysis of morphological, functional and biomechanical parameters pertaining to lower limb arteries in various categories of elite athletes (without cardiovascular risk and practicing high- or low-impact aerobic activities which preferentially implicate lower limb activity) as compared to (each other and to) sedentary controls.

Read the detailed description

Secondary objectives of this study are:

  1. Determine the presence and extent of intima-media calcifications in athletes B. Determine the relationship between these calcifications and the level, length and intensity of sports activity.
  2. Determine the relationship between these properties and calcification of the arterial wall D. Analyze the relationship between the type of sports activity and properties of the arterial wall.
  3. Examine the relationship between the properties of the arterial wall and peripheral perfusion pressures.
  4. Examine the relationship between the properties of the arterial wall, changes in afterload, morphology and systolic heart function.
  5. Analyze the relationships between the parameters characterizing the arterial wall and muscle mass of the lower limbs.
  6. Analyze the relationship between the presence of intramural calcification and bone density determined by densitometry.
  7. Analyze the relationship between the presence of intramural calcification and dietary protein intake and calcium.
  8. Compare indices of pressure at the ankle and toe, depending on the extent of calcification.
  9. Create a collection of biological samples (serum).
Keywords
Athletes, Sedentary volunteers
Medical subject headings
Monckeberg Medial Calcific Sclerosis

What participants receive

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

Study groups in NCT01577576
Study groupRoleWhat they receive
Upper-body athletesThis group includes swimmers, rowers or kayakers with a history of at least 10 years of intense training, and performance in regional competitions for the past five years.
Lower-body athletesThis group includes runners (marathon or trail) and cyclists with a history of at least 10 years of intense training, and performance in regional competitions for the past five years.
Sedentary volunteersThis group of healthy volunteers does not participate in athletic activity for more than two hours per week. They are matched by age and sex with the athletic groups.

What is being measured

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

  1. Presence / absence of intra parietal calcification of lower limb arteries

    Measured: Baseline (Day 0; transversal study)

Secondary outcomes (48)
  1. Extent of intra parietal calcification of lower limb arteries

    Score ranging from 0 to 3

    Measured: Baseline (Day 0; transversal study)

  2. Inner diameter of the intima-media of the common femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  3. Outer diameter of the intima-media of the common femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  4. Inner diameter of the intima-media of the superficial femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  5. Outer diameter of the intima-media of the superficial femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  6. Inner diameter of the intima-media of the common carotid artery (mm)

    Measured: Baseline (Day 0; transversal study)

  7. Outer diameter of the intima-media of the common carotid artery (mm)

    Measured: Baseline (Day 0; transversal study)

  8. Thickness of the intima-media of the common femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  9. Thickness of the intima-media of the superficial femoral artery (mm)

    Measured: Baseline (Day 0; transversal study)

  10. Thickness of the intima-media of the common carotid artery (mm)

    Measured: Baseline (Day 0; transversal study)

  11. Local parietal compliance of the superficial femoral artery

    mm^2/mmHg

    Measured: Baseline (Day 0; transversal study)

  12. Compliance of the carotid artery

    mm^2/mmHg

    Measured: Baseline (Day 0; transversal study)

  13. Distensibility of the carotid artery

    mmHg^-1*10^-2

    Measured: Baseline (Day 0; transversal study)

  14. Arterial wave velocity in lower limb

    m/s

    Measured: Baseline (Day 0; transversal study)

  15. Arterial wave velocity in upper limb

    m/s

    Measured: Baseline (Day 0; transversal study)

  16. Endothelium-dependent vasorelaxation in the femoral artery

    Measured: Baseline (Day 0; transversal study)

  17. Postischemic vasomotor response at the (skin) microcirculatory level

    Measured: Baseline (Day 0; transversal study)

  18. Systolic pressure index at the ankle

    relative units

    Measured: Baseline (Day 0; transversal study)

  19. Systolic pressure index for the big toe

    relative units

    Measured: Baseline (Day 0; transversal study)

  20. Cardiac afterload index

    g/cm^2

    Measured: Baseline (Day 0; transversal study)

  21. Echocardiographic parameters analyzing systolic function: the stroke volume

    ml

    Measured: Baseline (Day 0; transversal study)

  22. Echocardiographic parameters analyzing systolic function: cardiac output

    l/min

    Measured: Baseline (Day 0; transversal study)

  23. Echocardiographic parameters analyzing systolic function: peripheral vascular resistance

    Pa.s/m^3

    Measured: Baseline (Day 0; transversal study)

  24. Echocardiographic parameters analyzing systolic function: fractional shortening

    Measured: Baseline (Day 0; transversal study)

  25. Echocardiographic parameters analyzing systolic function: speed of the S-wave according to tissue Doppler

    cm.s-1

    Measured: Baseline (Day 0; transversal study)

  26. Echocardiographic parameters analyzing systolic function: global longitudinal strain

    Measured: Baseline (Day 0; transversal study)

  27. Ventricular-arterial coupling

    relative units

    Measured: Baseline (Day 0; transversal study)

  28. Echocardiographic parameters analyzing diastolic function: transmitral E wave velocity

    cm/s

    Measured: Baseline (Day 0; transversal study)

  29. Echocardiographic parameters analyzing diastolic function: transmitral A wave velocity

    cm/s

    Measured: Baseline (Day 0; transversal study)

  30. Echocardiographic parameters analyzing diastolic function: transmitral E wave velocity / transmitral A wave velocity

    relative units

    Measured: Baseline (Day 0; transversal study)

  31. Echocardiographic parameters analyzing diastolic function: maximum Em wave velocity according to tissue Doppler

    cm/s

    Measured: Baseline (Day 0; transversal study)

  32. Echocardiographic parameters analyzing diastolic function: maximum Am wave velocity according to tissue Doppler

    cm/s

    Measured: Baseline (Day 0; transversal study)

  33. Echocardiographic parameters analyzing diastolic function: transmitral E wave velocity / maximum Em wave velocity according to tissue Doppler

    relative units

    Measured: Baseline (Day 0; transversal study)

  34. Echocardiographic parameters analyzing diastolic function: early diastolic strain-rate

    s^-1

    Measured: Baseline (Day 0; transversal study)

  35. Years of athletic training

    Measured: Baseline (Day 0; transversal study)

  36. Hours of athletic training per week

    h/week

    Measured: Baseline (Day 0; transversal study)

  37. Best performance in the last 6 months

    Measured: Baseline (Day 0; transversal study)

  38. Lower limb muscle mass

    g

    Measured: Baseline (Day 0; transversal study)

  39. Bone density

    g/cm^2

    Measured: Baseline (Day 0; transversal study)

  40. Dietary protein intake

    g/day

    Measured: Baseline (Day 0; transversal study)

  41. Dietary protein intake

    % calories per day

    Measured: Baseline (Day 0; transversal study)

  42. Dietary calcium intake

    mg/day

    Measured: Baseline (Day 0; transversal study)

  43. Serum protein

    g/l

    Measured: Baseline (Day 0; transversal study)

  44. Serum calcium

    mmol/l

    Measured: Baseline (Day 0; transversal study)

  45. Serum phosphorus

    mmol/l

    Measured: Baseline (Day 0; transversal study)

  46. Serum parathyroid hormone

    ng/l

    Measured: Baseline (Day 0; transversal study)

  47. Serum vitamin D2

    µg/l

    Measured: Baseline (Day 0; transversal study)

  48. Serum vitamin D3

    µg/l

    Measured: Baseline (Day 0; transversal study)

Timeline

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

  1. First posted16 Apr 2012 (estimated)
  2. Study startSep 2012
  3. Primary completionMar 2015
  4. Study completionMar 2015

Why it stopped: Inclusion curve too slow.

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01577576
Sponsor's protocol ID
LOCAL/2012/APM-01
Other IDs
2012-A00475-38
Acronym
MediaSport
Status last verified
Nov 2015
First submitted
12 Apr 2012
Last updated
30 Nov 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Monckeberg Medial Calcific Sclerosis, run by Centre Hospitalier Universitaire de Nīmes at 2 sites in France.

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 6 inclusion and 16 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: stopped early, as of the sponsor's last update on 30 Nov 2015. 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 France. 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. 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 was stopped early (reason given: Inclusion curve too slow.). Results are not available in the source record.

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?

Presence / absence of intra parietal calcification of lower limb arteries (time frame: Baseline (Day 0; transversal study)). 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 Nov 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in