NCT04546750

Brief Summary

A prospective study of individuals without varicose veins and who have primary varicose veins to assess the morbidity, risk factors and natural course of chronic lower limb vein disease.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
53mo left

Started Sep 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress57%
Sep 2020Sep 2030

Study Start

First participant enrolled

September 1, 2020

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

September 5, 2020

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 14, 2020

Completed
10 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2030

Last Updated

November 18, 2023

Status Verified

November 1, 2023

Enrollment Period

10 years

First QC Date

September 5, 2020

Last Update Submit

November 14, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of primary varicose veins

    Number of Participants with the first identified varicose veins (class C2 according to CEAP classification)

    1 year

Secondary Outcomes (5)

  • Progression of primary varicose veins

    1 year

  • Incidence of chronic venous insufficiency

    1 year

  • Incidence of superficial vein thrombosis

    1 year

  • Incidence of reticular and telangiectatic leg veins

    1 year

  • Progression of reticular and telangiectatic leg veins

    1 year

Study Arms (2)

Patients without Varicose Veins

Individuals who do not have varicose veins of lower legs: C0, C1 classes according to Clinical, Etiologic, Anatomic and Pathophysiologic classification (CEAP)

Patients with Varicose Veins

Individuals who have varicose veins of lower legs: C2 Ep class according to Clinical, Etiologic, Anatomic and Pathophysiologic classification (CEAP)

Eligibility Criteria

Age10 Years+
Sexall(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The main cohort is formed from those who do not have varicose veins, who are affected by different factors that we register (various physical activities, the presence or absence of pregnancy, etc.). An additional cohort is formed from those who have varicose veins at the time of inclusion. The goal is to track the natural evolution (progression) of the disease, to evaluate the incidence and risk factors of complications. An extremely important criterion for the formation of the study population is the possibility to control the lower legs veins of observed individuals by a qualified vascular specialist. To date, a qualitative assessment of veins according to the CEAP classification is a weak point in longitudinal epidemiological studies.

You may qualify if:

  • A family members of the researcher (spouse, childrens, brothers and sisters, parents) or the researcher himself
  • The possibility of annual clinical and ultrasound assessment of the venous system of the observed individuals

You may not qualify if:

  • Any invasive treatment of the chronic venous disorder in anamnesis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

"Medalp" private surgery clinic

Saint Petersburg, 197350, Russia

RECRUITING

Related Links

MeSH Terms

Conditions

Venous ThrombosisVenous Insufficiency

Condition Hierarchy (Ancestors)

ThrombosisEmbolism and ThrombosisVascular DiseasesCardiovascular Diseases

Central Study Contacts

Igor Zolotukhin, MD, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 5, 2020

First Posted

September 14, 2020

Study Start

September 1, 2020

Primary Completion (Estimated)

September 1, 2030

Study Completion (Estimated)

September 1, 2030

Last Updated

November 18, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations