NCT05612217

Brief Summary

This study is a multicenter observational study, which is carried out in frame of routine clinical practice in Russia. The program will include patients suggestive to chronic venous diseases (CVDs) including but not limited to those with C1 and C2 classes by CEAP classification, who will be seeking professional phlebologists' consultation. Study conduction is scheduled in Russia in 2022-2023. The planned number of patients is 414

Trial Health

87
On Track

Trial Health Score

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

Enrollment
433

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2022

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

November 3, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 10, 2022

Completed
21 days until next milestone

Study Start

First participant enrolled

December 1, 2022

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2023

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2024

Completed
6 months until next milestone

Results Posted

Study results publicly available

September 25, 2024

Completed
Last Updated

September 25, 2024

Status Verified

September 1, 2024

Enrollment Period

6 months

First QC Date

November 3, 2022

Results QC Date

April 17, 2024

Last Update Submit

September 19, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Evaluation of Sensitivity (Sn) of the AI-based AIVARIX App in Detecting C1 and C2 Classes of CVD in Patients Who Are Seeking for Professional Advice From a Phlebologist Regarding Symptoms and Signs Suggestive to CVD.

    Sensitivity is defined as the ratio of the number of positive cases of detection of signs of C1 or C2 CVD, identified using the AIVARIX tool, to the total number of truly positive cases of C1 or C2 CVD in the study population, confirmed by phlebologists using objective / instrumental examinations.

    1 month

  • Evaluation of Specificity (Sp) of the AI-based AIVARIX App in Detecting C1 and C2 Classes of CVD in Patients Who Are Seeking for Professional Advice From a Phlebologist Regarding Symptoms and Signs Suggestive to CVD

    Specificity is defined as a proportion of the number of negative cases of signs C1 or C2 classes of CVD identified by the AIVARIX tool divided to overall truly negative cases of C1 or C2 in the study population confirmed by phlebologists by means of objective/ instrumental examination.

    1 month

Secondary Outcomes (2)

  • Calculation of the Positive Predictive Values (PPV) a of AIVARIX in Detecting Signs of C1 and C2 Classes of Chronic Venous Disease.

    1 month

  • Calculation of the Negative Predictive Values (NPV) a of AIVARIX in Detecting Signs of C1 and C2 Classes of Chronic Venous Disease.

    1 month

Study Arms (1)

patients with CVD

20 patients per 1 center: patients with CVD C1 class 4 patients with CVD C2 class; 2 patients with CVD with classes other than C1-C2 (C4-C6); 8 patients with either C0s CVD or with skin pathologic conditions of lower extremities other than CVD;

Other: to estimate Sensitivity and Specificity AIVARIX app in detecting C1 and C2 classes of CVD

Interventions

to estimate Sensitivity and Specificity of the AI-based AIVARIX app in detecting C1 and C2 classes of CVD in patients who are seeking for professional advice from a phlebologist regarding symptoms and signs suggestive to CVD.

patients with CVD

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

patients who are consulted by phlebologists on symptoms and signs suggestive to CVD.

You may qualify if:

  • Age over 18 years
  • Written informed consent is provided
  • Symptoms and signs of CVD or any other skin pathologic condition (s) of lower extremities for which a patient seeks for phlebologist's consultation
  • Ability to fulfil the technical requirements for smartphones/ images

You may not qualify if:

  • Patients with mental/ psychiatric disabilities who are not able to understand objectives of the study and therefore provide a signed consent to participate in the study.
  • Patient's decision to withdraw his/her consent to participate in the study at any moment of the study conduction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pirogov Russian National Research Medical University

Moscow, Russia

Location

Results Point of Contact

Title
olga linnik
Organization
Servier

Study Officials

  • IGOR ZOLOTUKHIN

    Pirogov Russian National Research Medical University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
CROSS SECTIONAL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 3, 2022

First Posted

November 10, 2022

Study Start

December 1, 2022

Primary Completion

June 1, 2023

Study Completion

April 1, 2024

Last Updated

September 25, 2024

Results First Posted

September 25, 2024

Record last verified: 2024-09

Locations