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Varicose Veins clinical trials

The registry lists 226 studies for Varicose Veins across more than 10 countries. 30 are recruiting or about to start. 165 of them are mainly about Varicose Veins (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-09. Counting its narrower condition Varicose Ulcer too: 580 studies, 106 open.

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Status

Completed
117
Status unknown
48
Recruiting
22
Active, not recruiting
11
Withdrawn
10
Terminated
10

Phase

Phase 4
24
Phase 3
16
Phase 2
9
Phase 1
2

Where

United States
38
United Kingdom
28
China
23
Brazil
11
Russian Federation
10
Egypt
10

Who runs them

Boston Scientific Corporation (11) · Imperial College London (10) · Pirogov Russian National Research Medical University (10) · Singapore General Hospital (6) · Hull University Teaching Hospitals NHS Trust (6) · Belarusian State Medical University (5) · Chengdu University of Traditional Chinese Medicine (5) · Korea University (4)

What is being tested here

Drugs under test in Varicose Veins studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Dalteparin101
Tinzaparin101
Enoxaparin sodium101
Enoxaparin101
Rivaroxaban101
Apixaban101
Dabigatran101
Polidocanol006
Sodium Tetradecyl Sulfate003
Glucose002

Coming up

1phase 3 study under way
13studies finish main data collection within a year

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest

Who these studies take

Of the 22 Varicose Veins studies recruiting now, 12 (55%) set no upper age limit and 4 (18%) stop at 75 or younger. 2 (9%) take children under 18. 1 (5%) are for women only and 0 (0%) for men only; 2 (9%) take healthy volunteers.

Recruiting studies that take each age, of 22
AgeWomenMen
101 (5%)1 (5%)
1820 (91%)19 (86%)
3021 (95%)20 (91%)
4022 (100%)21 (95%)
5021 (95%)21 (95%)
6521 (95%)21 (95%)
7520 (91%)20 (91%)
8514 (64%)14 (64%)

Across all 226 studies, recruiting or not: 25% stop at 75 or younger and 9% at 65; 6% take children; 7% are for women only and 1% for men only; 17% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Varicose Veins studies take

Of 72 interventional studies with no phase under Varicose Veins, half reached primary completion within 22 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase22 mo11–48 · 72 studies—25 mo12–48 · 62 studies
Observational29 mo19–96 · 30 studies——

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 13, 2026.

Newly registered2

Studies

Recruiting first, then most recently updated. Showing 50 of 226. Browse all 226 → or search them.