NCT03743597

Brief Summary

This study evaluates physical properties of a innovative leg compression stocking compared to a standard compression stocking of the same compression strength in patients with chronic venous insufficiency clinical stadium C3 and above, according to the CEAP classification for chronic venous insufficiency. The physical properties can be measured through a series of measurements. The hypothesis is that the innovative compression stocking, although changed in design to be more easily donned, will perform as good as the standard compression stocking. In each participant the examinations will be conducted with both stockings. A computer generated list will allocate each participant to either one of the stockings, with which the examinations will be conducted first.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
35

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

November 13, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 16, 2018

Completed
3 days until next milestone

Study Start

First participant enrolled

November 19, 2018

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

March 30, 2021

Status Verified

March 1, 2021

Enrollment Period

3.1 years

First QC Date

November 13, 2018

Last Update Submit

March 29, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Static Stiffness Index (SSI) values of both stockings in mmHg measured at point cB1 on the leg

    The SSI is a substraction of the Interface Pressures measured with a pressure probe on the leg of the study participant in standing and in supine position while wearing a compression stocking. The point cB1 is a thereby a standard measuring point at the distal insertion of the gastrocnemius muscle of the leg.

    1 day, during study visit

Secondary Outcomes (4)

  • Static Stiffness Index (SSI) values of both stocking in mmHg measured at point cC on the leg

    1 day, during study visit

  • Dynamic Stiffness Index (DSI) values of both stockings in mmHg

    1 day, during study visit

  • Venous ejection fraction (VEF) of both stockings in %

    1 day, during study visit

  • Interface Pressures at point cB on the leg in mmHg

    1 day, during study visit

Study Arms (2)

SOCKNLEG

EXPERIMENTAL

Group of participant who will conduct the examinations first with the SOCKNLEG compression stockings. All examinations will be conducted in all participants and with both stockings one after the other.

Device: SOCKNLEGDevice: Sigvaris COTTON

Sigvaris COTTON

ACTIVE COMPARATOR

Group of participant who will conduct the examinations first with the Sigvaris COTTON compression stockings. All examinations will be conducted in all participants and with both stockings one after the other.

Device: SOCKNLEGDevice: Sigvaris COTTON

Interventions

SOCKNLEGDEVICE

Innovative multilayer leg compression stocking, compression strength CEN compression class II (European Compression Strength) with compression at the ankle of 23-32mmhg, product composition understocking (polyamide, cotton, spandex), overstocking (polyamide, spandex) In each participant all examinations will be performed with both study stockings, one after the other

SOCKNLEGSigvaris COTTON

Standard single leg compression stocking, compression strength CEN compression class II (European Compression Strength) with compression at the ankle of 23-32mmhg, product composition one stocking (polyamide, spandex, cotton) In each participant all examinations will be performed with both study stockings, one after the other

SOCKNLEGSigvaris COTTON

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Informed Consent as documented by signature
  • Male or post-menopausal women over the age of 65
  • Diagnosed chronic venous insufficiency stage C3-C6 (according to CEAP classification)
  • Indication of a compression therapy by medical compression stocking

You may not qualify if:

  • Peripheral artery disease (PAD) or calcinosis (Ankle-Brachial-Index \<0.8 or \>1.3
  • Suspected polyneuropathy with ≤4 sensible test areas measured with the Semmes- Weinstein-Monofilament-Test
  • Advanced heart insufficiency (NYHA III-IV)
  • Contraindications to compression therapy
  • Known allergies to any components of the stocking material
  • Inability to follow the procedures of the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Dermatology, University Hospital of Zurich, Switzerland

Zurich, CH-8091, Switzerland

RECRUITING

Study Officials

  • Juerg Hafner, M.D. Prof.

    Department of Dermatology, University Hospital Zurich, Zurich, Switzerland

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Juerg Hafner, M.D. Prof.

CONTACT

Caroline S Buset, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: A computer generated list will allocate each participant to either one of the stockings, the innovative SOCKNLEG, or the standard Sigvaris COTTON stocking. In each participant the examinations will be conducted with both stockings. The allocated group defines with which stocking the examinations will be conducted first.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 13, 2018

First Posted

November 16, 2018

Study Start

November 19, 2018

Primary Completion

December 31, 2021

Study Completion

December 31, 2021

Last Updated

March 30, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations