NCT06766968

Brief Summary

Foam-form sclerotherapy is an effective method for eliminating varicose veins, which can be used alone or in combination with other interventions (laser or radiofrequency ablation, cyanoacrylate glue embolization) in the treatment of chronic venous disease of the lower limbs. Sclerotherapy is utilized to address both primary and recurrent varicose veins, and it is associated with a low rate of complications. Among the adverse effects, the most common is skin hyperpigmentation (darkening of the skin with the formation of stripes of shades of brown directly above the treated veins), with an occurrence rate reaching 6-53% within the first month following the procedure. Still, it resolves independently in 70% of cases within 6 months. An essential component of sclerotherapy is compression therapy through bandages or medical stockings, which helps accelerate the absorption of veins and improve the aesthetic results of treatment. Meanwhile, the optimal duration for wearing compression stockings after performing foam-form sclerotherapy of varicose tributaries has not been established.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
140

participants targeted

Target at P50-P75 for not_applicable

Timeline
3mo left

Started Dec 2024

Geographic Reach
1 country

1 active site

Status
active not 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 Progress86%
Dec 2024Jul 2026

Study Start

First participant enrolled

December 16, 2024

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

January 4, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

January 9, 2025

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2026

Expected
Last Updated

March 2, 2026

Status Verified

February 1, 2026

Enrollment Period

1 year

First QC Date

January 4, 2025

Last Update Submit

February 26, 2026

Conditions

Keywords

varicose veinschronic venous diseasesclerotherapymedical compression stockings

Outcome Measures

Primary Outcomes (1)

  • Number of patients with hyperpigmentation at 28 days

    Assessed by a blinded expert based on the analysis of photographic images of the legs in 4 projections (front, back, right, and left) as the presence of a linear area of skin in various shades of brown in the projection of sclerosed veins.

    28 days

Secondary Outcomes (20)

  • Intensity of the hyperpigmentation at 28 days

    28 days

  • Number of patients with hyperpigmentation at 6 months

    6 months

  • Intensity of hyperpigmentation at 6 months

    6 months

  • Intensity of spontaneous pain in the sclerosed vein at 28 days

    28 days

  • Intensity of spontaneous pain in the sclerosed vein at 6 months

    6 months

  • +15 more secondary outcomes

Study Arms (2)

Group 1: MCS for 1 month

EXPERIMENTAL

The patient will be prescribed to use medical compression stockings (MCS of class 2 of "RAL GZ 387" standard with a pressure of 23-32 mm Hf at the ankle) continuously for 7 days between the sessions and after the last session of foam-form sclerotherapy. After that, he should continue wearing the MCS during the day (put it on within 30 minutes after getting out of bed, remove it within 30 minutes before going to sleep, and wear it for at least 12 hours a day) for 28 days.

Device: Graduated Compression Stocking: 1 month using

Group 2: MCS for 1 week

ACTIVE COMPARATOR

The patient will be prescribed to use medical compression stockings (MCS of class 2 of "RAL GZ 387" standard with a pressure of 23-32 mm Hf at the ankle) continuously for 7 days between the sessions and after the last session of foam-form sclerotherapy. After that he will stop using MCS.

Device: Graduated Compression Stocking: 1 week using

Interventions

Class 2 (RAL-GZ 387 standard: 23-32 mm Hg at the ankle level) above-knee graduated compression stockings

Group 2: MCS for 1 week

Class 2 (RAL-GZ 387 standard: 23-32 mm Hg at the ankle level) above-knee graduated compression stockings

Group 1: MCS for 1 month

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age over 18 years;
  • Varicose veins of the lower extremities of clinical class C2 according to CEAP (Clinical, Etiological, Anatomical, Pathophysiological) classification;
  • Scheduled foam-form sclerotherapy of varicose tributaries as an independent intervention or after trunkal ablation;
  • Absence of initial skin pigmentation, including that associated with previously performed trunk ablation;
  • Absence of indications for long-term use of compression therapy, including the clinical class of chronic venous disease C3-C6 and persistence of vein-specific symptoms;
  • Signed informed consent to participate in the study.

You may not qualify if:

  • History of deep vein thrombosis;
  • Contraindications or restrictions to foam-form sclerotherapy;
  • Contraindications or restrictions to long-term use of compression therapy;
  • Inability or difficulty in independently putting on MCS;
  • Refusal to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

MedSwiss Private Clinic

Moscow, 123056, Russia

Location

MeSH Terms

Conditions

Varicose Veins

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Study Officials

  • Kirill Lobastov, PhD

    Pirogov Russian National Research Medical University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Masking Description
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: A single-center, open, superiority randomized controlled trial with a blinded outcome assessor.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 4, 2025

First Posted

January 9, 2025

Study Start

December 16, 2024

Primary Completion

December 31, 2025

Study Completion (Estimated)

July 31, 2026

Last Updated

March 2, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will share

By the personal request

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
After results publication indefinitely
Access Criteria
By the personal request

Locations