# PREservation Versus Thermal Ablation

> **NCT04034329** · — · UNKNOWN · sponsor: **Belarusian State Medical University** · enrollment: 150 (estimated)

## Conditions studied

- Varicose Veins

## Interventions

- **PROCEDURE:** ASVAL
- **PROCEDURE:** EVLA

## Key facts

- **NCT ID:** NCT04034329
- **Lead sponsor:** Belarusian State Medical University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2013-01-01
- **Primary completion:** 2019-07-23
- **Final completion:** 2025-02-01
- **Target enrollment:** 150 (ESTIMATED)
- **Last updated:** 2023-02-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04034329

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04034329, "PREservation Versus Thermal Ablation". Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/clinical/NCT04034329. Licensed CC0.

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