Efficacy and Safety of Endovenous Radio Frequency (EVRF) for Treatment of Varicose Veins in Singapore

NCT ID: NCT04384315

Last Updated: 2021-09-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-08-01

Study Completion Date

2022-12-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The aim of this study is to report a collaborative, prospective Singaporean experience using the Endovenous Radio Frequency® (EVRF®) from F Care Systems (Belgian) for the treatment of primary great and short saphenous vein reflux.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The investigators wish to evaluate its safety, efficacy, and performance. Although it has been shown to be safe and efficacious in its initial trials, these studies have been limited to generally a caucasian-based population, where the vein size, anatomy and distribution of venous incompetence can be different from their asian counterparts. The study will evaluate the technical, anatomical and clinical performance of EVRF® performed on multiple truncal varicose veins, and without mandatory postoperative compression stockings of the GSV, SSV or AASV. The two primary endpoints for this evaluation are technical success at the time of the procedure, and anatomical success, reported as complete closure at 2-weeks, 3 months, 6 months and 12 months.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Varicose Veins Venous Reflux Chronic Venous Insufficiency

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

EVRF

Patients that have undergone Endovenous Radio Frequency® (EVRF®) from F Care Systems (Belgian) for the treatment of primary great and short saphenous vein reflux.

Questionnaires

Intervention Type OTHER

Questionnaires to assess the quality of life (EQ-5D, CVVQ, CIVIQ, AVVQ, Patient satisfaction survey)

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Questionnaires

Questionnaires to assess the quality of life (EQ-5D, CVVQ, CIVIQ, AVVQ, Patient satisfaction survey)

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Age \>21 years, able to understand the requirements of the study and provide informed consent.
2. C2 - C5 varicose veins / CVI
3. Symptomatic primaryGSV, SSV or AASV incompetence, with reflux \>0.5 seconds on colour duplex, including one or more of the following symptoms: aching, throbbing, heaviness, fatigue, pruritus, night cramps, restlessness, generalized pain or discomfort, swelling.
4. Patients who has GSV, SSV or AASV diameters of 3mm to 12mm in the standing position.

Exclusion Criteria

1. Current DVT or history of DVT
2. Recurrent varicose veins
3. Pregnant patients
4. Arterial disease (ABPI\<0.8)
5. Sepsis
6. Patients who are unwilling to participate
7. Inability or unwillingness to complete questionnaires
8. Adverse reaction to sclerosant or cyanoacrylate
9. GSV, SSV or AASV severely tortuous
10. Life expectancy \< 1 year
11. Active treatment for malignancy other than non-melanoma skin cancer
12. Current, regular use of systemic anticoagulation (e.g. warfarin, heparin)
13. Daily use of narcotic analgesia or NSAIDS to control pain associated with venous disease
Minimum Eligible Age

21 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Singapore General Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Tjun Yip Tang

Role: PRINCIPAL_INVESTIGATOR

Singapore General Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Singapre General Hospital

Singapore, Singaopore, Singapore

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Singapore

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Charyl Yap

Role: CONTACT

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Charyl Yap

Role: primary

References

Explore related publications, articles, or registry entries linked to this study.

Gloviczki P, Comerota AJ, Dalsing MC, Eklof BG, Gillespie DL, Gloviczki ML, Lohr JM, McLafferty RB, Meissner MH, Murad MH, Padberg FT, Pappas PJ, Passman MA, Raffetto JD, Vasquez MA, Wakefield TW; Society for Vascular Surgery; American Venous Forum. The care of patients with varicose veins and associated chronic venous diseases: clinical practice guidelines of the Society for Vascular Surgery and the American Venous Forum. J Vasc Surg. 2011 May;53(5 Suppl):2S-48S. doi: 10.1016/j.jvs.2011.01.079.

Reference Type BACKGROUND
PMID: 21536172 (View on PubMed)

Beebe-Dimmer JL, Pfeifer JR, Engle JS, Schottenfeld D. The epidemiology of chronic venous insufficiency and varicose veins. Ann Epidemiol. 2005 Mar;15(3):175-84. doi: 10.1016/j.annepidem.2004.05.015.

Reference Type BACKGROUND
PMID: 15723761 (View on PubMed)

van den Bos R, Arends L, Kockaert M, Neumann M, Nijsten T. Endovenous therapies of lower extremity varicosities: a meta-analysis. J Vasc Surg. 2009 Jan;49(1):230-9. doi: 10.1016/j.jvs.2008.06.030. Epub 2008 Aug 9.

Reference Type BACKGROUND
PMID: 18692348 (View on PubMed)

Geza M, Gloviczki P. Venous Embryology and Anatomy. In: Bergan JJ, editor. The Vein Book: Elsivier Academic Press; 2007.

Reference Type BACKGROUND

van Eekeren RR, Boersma D, de Vries JP, Zeebregts CJ, Reijnen MM. Update of endovenous treatment modalities for insufficient saphenous veins--a review of literature. Semin Vasc Surg. 2014 Jun;27(2):118-36. doi: 10.1053/j.semvascsurg.2015.02.002. Epub 2015 Feb 18.

Reference Type BACKGROUND
PMID: 25868763 (View on PubMed)

Guex JJ. Endovenous chemical (and physical) treatments for varices: what's new? Phlebology. 2014 May;29(1 suppl):45-48. doi: 10.1177/0268355514526331. Epub 2014 May 19.

Reference Type BACKGROUND
PMID: 24843085 (View on PubMed)

Davies HO, Popplewell M, Darvall K, Bate G, Bradbury AW. A review of randomised controlled trials comparing ultrasound-guided foam sclerotherapy with endothermal ablation for the treatment of great saphenous varicose veins. Phlebology. 2016 May;31(4):234-40. doi: 10.1177/0268355515595194. Epub 2015 Jul 9.

Reference Type BACKGROUND
PMID: 26163507 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2019/2544

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.