NCT04487314

Brief Summary

A prospective cohort study of patients with primary varicose veins to assess the morbidity, risk factors and development 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
10,000

participants targeted

Target at P75+ for all trials

Timeline
296mo left

Started Aug 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress19%
Aug 2020Sep 2050

First Submitted

Initial submission to the registry

July 9, 2020

Completed
18 days until next milestone

First Posted

Study publicly available on registry

July 27, 2020

Completed
24 days until next milestone

Study Start

First participant enrolled

August 20, 2020

Completed
30.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2050

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2050

Last Updated

November 18, 2023

Status Verified

November 1, 2023

Enrollment Period

30.1 years

First QC Date

July 9, 2020

Last Update Submit

November 14, 2023

Conditions

Outcome Measures

Primary Outcomes (4)

  • Incidence of Chronic Venous Disease

    Number of Participants with the first identified signs of chronic venous disease according to CEAP classification (telangiectasia, varicose veins, edema)

    1 year

  • Natural Course of Chronic Venous Disease

    Progression of CVD will be measured as a change in clinical class of CVD according to CEAP classification in every individual affected by CVD

    1 year

  • Incidence of chronic venous insufficiency

    Number of Participants with the first identified sign of chronic venous insufficiency (venous edema, venous eczema, hyperpigmentation of the skin, lipodermatosclerosis, venous ulcer)

    1 year

  • Incidence of superficial vein thrombosis

    Number of Participants with the first identified sign of superficial vein thrombosis

    1 year

Study Arms (2)

Patients without Chronic Venous Disease

Individuals who do not have signs of chronic venous diseases of lower legs according to Clinical, Etiologic, Anatomic and Pathophysiologic classification (CEAP)

Patients with Chronic Veinous Disease

Individuals who have signs of chronic venous diseases of lower legs according to CEAP classification (telangiectases, varicose veins, venous edema, skin hyperpigmentation, lipodermatosclerosis, venous ulcer).

Eligibility Criteria

Age10 Years+
Sexall
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 CVD, 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 CVD 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

Central Study Contacts

Evgeny Ilyukhin, MD, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 9, 2020

First Posted

July 27, 2020

Study Start

August 20, 2020

Primary Completion (Estimated)

September 1, 2050

Study Completion (Estimated)

September 1, 2050

Last Updated

November 18, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations