NCT05468450

Brief Summary

FOVELASS is a multicentre-RCT (11 centres) comparing ultrasound-guided-foam sclerotherapy (UGFS) and Endovenous Laser Ablation (EVLA) for treating SSV insufficiency, conducted by the French Society of Phlebology.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
161

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2015

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

Study Start

First participant enrolled

July 1, 2015

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2016

Completed
5.9 years until next milestone

First Submitted

Initial submission to the registry

July 13, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 21, 2022

Completed
Last Updated

July 21, 2022

Status Verified

July 1, 2022

Enrollment Period

1.2 years

First QC Date

July 13, 2022

Last Update Submit

July 19, 2022

Conditions

Keywords

small saphenous veinsvaricose veinsultrasound guided foam sclerotherapyendovenous laser ablation

Outcome Measures

Primary Outcomes (1)

  • Absence of reflux in the treated SSV segment

    closed veins or patent veins with no reflux (\>0.5sec)

    3Assessed at years

Secondary Outcomes (7)

  • Treatment time

    Assessed on day of treatment

  • Procedure related complications

    Assessed through study completion, an average of 3 years

  • Periprocedural pain score

    up to four weeks

  • Presence of visible varices

    Through study completion, average of 3 years

  • Venous symptoms questionnaire

    Through study completion, average of 3 years

  • +2 more secondary outcomes

Study Arms (2)

Ultrasound-guided-foam sclerotherapy (UGFS)

ACTIVE COMPARATOR

Injection of Polidocanol foam into SSV

Drug: Ultrasound-guided-foam sclerotherapy (UGFS) using Polidocanol sclerosant

Endovenous Laser Ablation (EVLA)

ACTIVE COMPARATOR

Ablation of SSV using laser energy

Device: Endovenous Laser Ablation (EVLA)

Interventions

Direct injection Foam sclerotherapy

Also known as: Foam sclerotherapy
Ultrasound-guided-foam sclerotherapy (UGFS)

EVLA using a 1470nm generator and 600-micron radial fibres (Biolitec® Biomedical Technology, Jena, Germany), under tumescent local anaesthesia (TLA)

Also known as: Laser therapy
Endovenous Laser Ablation (EVLA)

Eligibility Criteria

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

You may qualify if:

  • symptomatic varicose veins (CEAP C2s-C6)
  • underlying isolated SSV incompetence (SSV reflux time\>0.5sec on duplex ultrasound (DUS))
  • reflux involving at least 15 cm of proximal SSV
  • minimal SSV diameter of 4 mm at mid-calf (luminal diameter in standing position)

You may not qualify if:

  • SSV treatment in the preceding 3 months
  • post-thrombotic disease
  • deep or superficial vein thrombosis of less than 3 months duration
  • coexistent ipsilateral GSV insufficiency
  • morbid obesity (BMI\>40)
  • presence of significant arterial disease (ABPI\<0.5)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • 9) Hamel-Desnos C., Josnin M., Allaert F.-A. Etude contrôlée randomisée de l'efficacité du laser endoveineux (1470 nm) versus échosclérothérapie à la mousse dans le traitement de l'insuffisance de la petite veine saphène. Phlébologie 2019 (72): 8-18

    BACKGROUND
  • Hamel-Desnos C, Nyamekye I, Chauzat B, Gracia S, Josnin M, Abbadie F. FOVELASS: A Randomised Trial of Endovenous Laser Ablation Versus Polidocanol Foam for Small Saphenous Vein Incompetence. Eur J Vasc Endovasc Surg. 2023 Mar;65(3):415-423. doi: 10.1016/j.ejvs.2022.11.021. Epub 2022 Dec 5.

MeSH Terms

Conditions

Varicose Veins

Interventions

Laser Therapy

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

TherapeuticsAblation TechniquesSurgical Procedures, Operative

Study Officials

  • Claudine Hamel-Desnos

    Institut des Varices- GHPJS Groupe Hospitalier

    STUDY DIRECTOR
  • Matthieu Josnin

    Société Française de Phlébologie

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Blinding of participants and investigators is not possible because of the obvious differences between the two treatments (a single mid-calf injection versus multiple injections for tumescent anaesthesia/laser precautions etc…). A blind third-party check was carried out, only at 3 years, and those assessors were completely independent of the study and blinded.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: multicentre-RCT (11 centres) comparing ultrasound-guided-foam sclerotherapy (UGFS) and Endovenous Laser Ablation (EVLA) for treating small saphenous veins (SSV) insufficiency
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 13, 2022

First Posted

July 21, 2022

Study Start

July 1, 2015

Primary Completion

August 31, 2016

Study Completion

August 31, 2016

Last Updated

July 21, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will not share

Randomised is provided by the independent statistics centre (Cenbiotech; Dijon-France), who also analysed IPD. Investigators cannot access other centres' data.