NCT06669260

Brief Summary

Endovenous laser thermoablation is a well-established alternative for the treatment of tributary veins. We believe that it is possible to improve the techniques described in the literature, aiming not only to allocate the laser fiber within the venous lumen, but mainly to transfix the vessel walls - a technique called TEThA (Transfixing Endovenous Thermal Ablation).

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Nov 2024

Shorter than P25 for all trials

Status
not yet 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

First Submitted

Initial submission to the registry

October 30, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 1, 2024

Completed
20 days until next milestone

Study Start

First participant enrolled

November 21, 2024

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 22, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 22, 2025

Completed
Last Updated

November 1, 2024

Status Verified

October 1, 2024

Enrollment Period

8 months

First QC Date

October 30, 2024

Last Update Submit

October 30, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Quality of Life score using Aberdeen Varicose Veins Questionnaire (AVVQ)

    AVVQ is an easy-to-administer, self-administered instrument, it consists of 3 dimensions, which are physical, sociofunctional and psychological. It is interpreted through a score, which can vary between 0 and 100, with 0 representing no evidence of varicose veins and 100 the most serious problem associated with varicose veins.

    Baseline, Timepoints post-procedire: 1 month, 3 months, 6 months

  • Quality of life score using the Chronic Venous Insufficiency Questionnaire (CIVIQ)

    CIVIQ-14 is a questionnaire based on three dimensions - pain, physical and psychological, based on a scale from 1 to 5 (no trouble, slight, moderate, considerable, severe). Based on inputs, Global Index Score (GIS) will be tabulated, ranging from 0 to 100 - the higher the value, the poorer the quality of life.

    Timepoints post-procedire: 1 month, 3 months, 6 months

Secondary Outcomes (7)

  • Hyperpigmentation

    Baseline, 30 days and 180 days

  • Presence of induration

    30 days and 180 days

  • Presence of Paresthesia

    30 days and 180 days

  • Skin burns

    7 days

  • Lymphedema

    30 days and 180 days

  • +2 more secondary outcomes

Study Arms (1)

TEThA technique

TEThA technique

Procedure: TEThA technique

Interventions

Patient in an orthostatic position, previously marked varicose veins will be punctured with a tracing adjacent to them, surrounding their edges. Applying an augmented reality device and Doppler ultrasound (Doppler USG), the marking will be complemented in the supine position. These punctures will in turn be carried out using the TEThA technique - endovenous thermoablation of tributary veins by means of transfixation - and will be done sequentially as they are treated one by one with endo- and perivenous thermoablation under generous tumescence with 0.08% lidocaine in saline solution. The laser used to treat the tributary veins will also be 1470 nm and will be fired as the fiber is removed at a speed of 1 mm/sec and power ranging from 5 to 7 watts.

TEThA technique

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Participants with tributary veins bigger than 2mm, presenting saphenous truncal incompetency scoring from C2 to C6 in CEAP

You may qualify if:

  • Patients with varicose veins \> 2mm associated with reflux of great or small saphenous veins with CEAP C2 to C6

You may not qualify if:

  • Patients under 18 years Acute or previous thrombophlebitis or deep vein thrombosis. Pregnant patient. Reject the Informed Consent Form.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Salim S, Machin M, Patterson BO, Onida S, Davies AH. Global Epidemiology of Chronic Venous Disease: A Systematic Review With Pooled Prevalence Analysis. Ann Surg. 2021 Dec 1;274(6):971-976. doi: 10.1097/SLA.0000000000004631.

    PMID: 33214466BACKGROUND
  • Lurie F, Passman M, Meisner M, Dalsing M, Masuda E, Welch H, Bush RL, Blebea J, Carpentier PH, De Maeseneer M, Gasparis A, Labropoulos N, Marston WA, Rafetto J, Santiago F, Shortell C, Uhl JF, Urbanek T, van Rij A, Eklof B, Gloviczki P, Kistner R, Lawrence P, Moneta G, Padberg F, Perrin M, Wakefield T. The 2020 update of the CEAP classification system and reporting standards. J Vasc Surg Venous Lymphat Disord. 2020 May;8(3):342-352. doi: 10.1016/j.jvsv.2019.12.075. Epub 2020 Feb 27.

    PMID: 32113854BACKGROUND
  • De Maeseneer MG, Kakkos SK, Aherne T, Baekgaard N, Black S, Blomgren L, Giannoukas A, Gohel M, de Graaf R, Hamel-Desnos C, Jawien A, Jaworucka-Kaczorowska A, Lattimer CR, Mosti G, Noppeney T, van Rijn MJ, Stansby G, Esvs Guidelines Committee, Kolh P, Bastos Goncalves F, Chakfe N, Coscas R, de Borst GJ, Dias NV, Hinchliffe RJ, Koncar IB, Lindholt JS, Trimarchi S, Tulamo R, Twine CP, Vermassen F, Wanhainen A, Document Reviewers, Bjorck M, Labropoulos N, Lurie F, Mansilha A, Nyamekye IK, Ramirez Ortega M, Ulloa JH, Urbanek T, van Rij AM, Vuylsteke ME. Editor's Choice - European Society for Vascular Surgery (ESVS) 2022 Clinical Practice Guidelines on the Management of Chronic Venous Disease of the Lower Limbs. Eur J Vasc Endovasc Surg. 2022 Feb;63(2):184-267. doi: 10.1016/j.ejvs.2021.12.024. Epub 2022 Jan 11. No abstract available.

    PMID: 35027279BACKGROUND
  • Vasconcelos NMCM, Kumakura HS, Grill MH, Silva MCE. Treatment of the small saphenous vein and tributary veins with endolaser associated with ultrasound-guided foam in a patient with post-thrombotic syndrome: presenting the TEThA technique. J Vasc Bras. 2024 Nov 29;23:e20230142. doi: 10.1590/1677-5449.202301422. eCollection 2024.

    PMID: 39629276BACKGROUND

MeSH Terms

Conditions

Varicose Veins

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Central Study Contacts

Eduardo Ramacciotti, MD, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

October 30, 2024

First Posted

November 1, 2024

Study Start

November 21, 2024

Primary Completion

July 22, 2025

Study Completion

July 22, 2025

Last Updated

November 1, 2024

Record last verified: 2024-10