NCT04774939 (FinnTrunk) is a NA clinical trial of Endovenous laser ablation in Venous Reflux, sponsored by Turku University Hospital.

Who is sponsoring NCT04774939?

NCT04774939 is sponsored by Turku University Hospital.

What drugs are being tested in NCT04774939?

Interventions in NCT04774939: Endovenous laser ablation.

What condition does NCT04774939 study?

NCT04774939 studies Venous Reflux.

Is NCT04774939 still recruiting?

NCT04774939 is currently not yet recruiting. Last updated 1 March 2021.

Last reviewed 2021-03-01 · How we verify

NCT04774939: FinnTrunk

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

EVLA and Optimal Timing of Sclerotherapy

Not yet recruiting NA Last updated 1 March 2021

What this trial tests

NA trial testing Endovenous laser ablation in Venous Reflux in 350 participants. Not yet recruiting.

Timeline

15 March 2021

Primary endpoint
15 March 2027

15 March 2030

Quick facts

Lead sponsor	Turku University Hospital
Phase	NA
Status	Not yet recruiting
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	double
Primary purpose	treatment
Enrollment	350
Start date	15 March 2021
Primary completion	15 March 2027
Estimated completion	15 March 2030
Sites	1 location across Finland

Drugs / interventions tested

Endovenous laser ablation

Conditions studied

Venous Reflux — all drugs for Venous Reflux →

Sponsor

Turku University Hospital

Who can join

Adults 18 to 99, any sex, with Venous Reflux. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The aim of the study is to investigate the optimal timing of sclerotherapy for treatment of varicose tributaries on EVLA (endogenous laser ablation) patients.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

A study protocol for comparing the treatment of varicose tributaries either concomitantly with or separately from endovenous laser ablation of the incompetent saphenous trunk (the FinnTrunk Study). A multicenter parallel-group randomized controlled study.
Viljamaa J, Firoozi K, Venermo M, Pokela M, et al · · 2023 · cited 2× · PMID 37220130 · DOI 10.1371/journal.pone.0285823
Early Outcomes of a Randomised Controlled Trial Comparing Concomitant with Staged Tributary Treatment as an Adjunct to Endovenous Laser Ablation of the Saphenous Trunk: The FinnTrunk Study.
Rahman T, Viljamaa J, Firoozi K, Laivuori M, et al · · 2026 · PMID 41580273 · DOI 10.1016/j.ejvs.2026.01.029

Verify or expand the search:

Other trials of Endovenous laser ablation

Trials testing the same drug.

NCT05001776 — Endovenous Laser Ablation in Acute Thrombophlebitis of the Varicose Great Saphenous Vein · Phase 4 · completed

Other recruiting trials for Venous Reflux

Currently open trials in the same condition.

NCT03250247 — Chronic Venous Thrombosis: Relief With Adjunctive Catheter-Directed Therapy (The C-TRACT Trial) · NA · active not recruiting

Other Turku University Hospital trials

Trials by the same sponsor.

NCT07488494 — Effective Implementation of the Physical Activity and Motor Skills Intervention for 3-6-year-old Children With Cancer (E · NA · not yet recruiting
NCT07316868 — Neuroprotective Effect of Mild Hypothermia Versus Normothermia During Cardiopulmonary Bypass of Coronary Artery Surgery · NA · not yet recruiting
NCT07306000 — Pilot Study: Effects of CCP Intervention on NICU Environment and Preterm Infants Development · NA · recruiting
NCT07272824 — Usability Study of Gestational and Postpartum Weight Management Program · recruiting
NCT07310472 — Administration of the Nasal Influenza Vaccine to Children in Daycare or at a Healthcare Facility · NA · recruiting

Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT04774939 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Turku University Hospital
Last refreshed: 1 March 2021

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04774939.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing