Market Penetration of Laser Therapy in Venous Surgery: Ziekenhuis Oost-Limburg - Ziekenhuis Maas En Kempen Center Experience

September 2, 2024 updated by: Duomed

Market Penetration of Laser Therapy in Venous Surgery: ZOL - ZMK Center Experience

The goal of this registry is to evaluate the indication for EndoVenous Laser Ablation (EVLA) therapy. Can this be enhanced? What are the reasons for not using the laser? Therefore, this study aims to define clear indications for EVLA by registering the incentives of the participating investigators to use the laser instead of conventional corrective surgery for the treatment of varicose veins, at baseline and post-operative. Additionally, the efficacy and safety of the different varicose vein treatments will be evaluated by registering procedural characteristics, anatomic outcome (duplex ultrasound), quality of life (AVVQ) and postoperative pain (VAS).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
500

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
    • Limburg
      • Genk, Limburg, Belgium, 3600
        • Ziekenhuis Oost-Limburg (Sint-Jan,Genk; Sint-Barbara,Lanaken; ZMK,Maaseik)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

500 patients with varicose veins, indicative for treatment with Endovenous laser ablation (EVLA) or Surgery (ligation/stripping) according to routine patient care.

Description

Inclusion Criteria:

  1. Patient is at least 18 years old.
  2. Patient must sign and date the informed consent form prior to treatment.
  3. Presence of unilateral or bilateral primary or recurrent symptomatic varicose veins (CEAP grade ≥ C2).
  4. Patient has an insufficient Great Saphenous Vein (GSV), Anterior Accessory Saphenous Vein (AASV) and/or Small Saphenous Vein (SSV), with venous symptoms (valve incompetence).

Exclusion Criteria:

  1. Current deep vein thrombosis.
  2. Acute superficial thrombosis.
  3. Pregnancy.
  4. Coagulopathy or bleeding disorders.
  5. Contraindications to the use of general or regional anesthesia.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients with varicose veins
Patients with varicose veins, indicative for treatment with EndoVenous Laser Ablation (EVLA) using the ELVeS® Radial® 2ring slim fiber or Surgery (ligation/stripping) according to the standard of care of the participating investigators.
Device: ELVeS® Radial® 2ring slim fiber used for EndoVenous Laser Ablation
Device for endovenous laser ablation manufactured by Biolitec AG company (ELVeS system) - diode laser with a wavelength of 1470 nm

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
To define clear indications for EndoVenous Laser Ablation (EVLA) treatment of varicose veins.
Time Frame: At baseline
The participating investigators will register the incentives (based on clinical examination and/or anatomic outcome by duplex ultrasound, as well as secondary considerations) to use laser ablation or conventional treatment for varicose veins in the study database in order to define clear indications for EndoVenous Laser Ablation (EVLA) treatment of varicose veins and to investigate whether the use of EVLA can be enlarged.
At baseline
To define clear indications for EndoVenous Laser Ablation (EVLA) treatment of varicose veins.
Time Frame: At 6 weeks follow-up
The participating investigators will re-evaluate the chosen treatment option and document this re-evaluation in the study database in order to define clear indications for EndoVenous Laser Ablation (EVLA) treatment of varicose veins and to investigate whether the use of EVLA can be enlarged.
At 6 weeks follow-up

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Procedural characteristics
Time Frame: At index-procedure
Type of anesthesia
At index-procedure
Procedural characteristics
Time Frame: At index-procedure
Number, type and length of veins treated
At index-procedure
Procedural characteristics
Time Frame: At index-procedure
Total energy per patient and fiber (when using the ELVeS® Radial® 2ring slim fiber)
At index-procedure
Procedural characteristics
Time Frame: At index-procedure
Number of procedures showing technical success, defined as the ability to treat the varicose veins as planned
At index-procedure
Procedural characteristics
Time Frame: At index-procedure
Peri-operative adverse events (bleeding, incomplete treatment, technical defects, difficult visualization, …)
At index-procedure
Procedural characteristics
Time Frame: At index-procedure
Duration of the index-procedure
At index-procedure
Pain scoring using the Visual Analog Scale (VAS)
Time Frame: At discharge, up to 1 week
The VAS scale contains a 0 - 100 grading with 0 equaling no pain and 100 equaling the worst conceivable pain. The patient is asked to select the number on the scale that corresponds to the worst level of pain he/she experiences. Pain is classified into mild (1 - 30 mm), moderate (31 - 60 mm) and severe (61 - 100 mm). Absence of pain is defined as VAS = 0.
At discharge, up to 1 week
Pain scoring using the Visual Analog Scale (VAS)
Time Frame: At 6 weeks follow-up
The VAS scale contains a 0 - 100 grading with 0 equaling no pain and 100 equaling the worst conceivable pain. The patient is asked to select the number on the scale that corresponds to the worst level of pain he/she experiences. Pain is classified into mild (1 - 30 mm), moderate (31 - 60 mm) and severe (61 - 100 mm). Absence of pain is defined as VAS = 0.
At 6 weeks follow-up
Anatomic success of EndoVenous Laser Ablation (EVLA)
Time Frame: At 6 weeks follow-up
Defined as occlusion of the treated veins and lack of reflux objectified with duplex ultrasonography.
At 6 weeks follow-up
Quality of life by scoring Aberdeen Varicose Vein Questionnaire (AVVQ)
Time Frame: At baseline
Aberdeen Varicose Vein Questionnaire (AVVQ) is a validated tool for assessing the perceived health of patients with varicose veins. The AVVQ comprises 13 quality of life questions, including a set of manikin legs, on which participants are asked to draw their veins.
At baseline
Quality of life by scoring Aberdeen Varicose Vein Questionnaire (AVVQ)
Time Frame: At 6 weeks follow-up
Aberdeen Varicose Vein Questionnaire (AVVQ) is a validated tool for assessing the perceived health of patients with varicose veins. The AVVQ comprises 13 quality of life questions, including a set of manikin legs, on which participants are asked to draw their veins.
At 6 weeks follow-up
Quality of life by scoring Aberdeen Varicose Vein Questionnaire (AVVQ)
Time Frame: At 6 months follow-up
Aberdeen Varicose Vein Questionnaire (AVVQ) is a validated tool for assessing the perceived health of patients with varicose veins. The AVVQ comprises 13 quality of life questions, including a set of manikin legs, on which participants are asked to draw their veins.
At 6 months follow-up
Post-operative adverse events
Time Frame: At discharge, up to 1 week
Number of participants with numbness, persistent bruising, skin loss or ulceration, hematoma, infection, bleeding, deep venous thrombosis, etc.
At discharge, up to 1 week
Post-operative adverse events
Time Frame: At 6 weeks follow-up
Number of participants with numbness, persistent bruising, skin loss or ulceration, hematoma, infection, bleeding, deep venous thrombosis, etc.
At 6 weeks follow-up
Post-operative adverse events
Time Frame: At 6 months follow-up
Number of participants with numbness, persistent bruising, skin loss or ulceration, hematoma, infection, bleeding, deep venous thrombosis, etc.
At 6 months follow-up
Re-interventions
Time Frame: At discharge, up to 1 week
Number of participants with re-interventions
At discharge, up to 1 week
Re-interventions
Time Frame: At 6 weeks follow-up
Number of participants with re-interventions
At 6 weeks follow-up
Re-interventions
Time Frame: At 6 months follow-up
Number of participants with re-interventions
At 6 months follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Duomed

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 15, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 13, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 8, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 4, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 26, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 27, 2019

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 5, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 2, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • BM-VL-01 ZOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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