Condition (MeSH)
May-Thurner Syndrome
ClinicalTrials.gov lists 19 trials for May-Thurner Syndrome or a narrower condition beneath it.
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Trials per phase
19 of the 19 trials are tagged with May-Thurner Syndrome itself; the rest are tagged with a narrower condition beneath it.
When did May-Thurner Syndrome trials start? (11)
Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Trials over time, by phase
- Phase 3
- Phase 4
- Not applicable
- Observational
Top of scale: 3
Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.
| Year | Trials started |
|---|---|
| 2025 | 2 |
| 2024 | 1 |
| 2021 | 1 |
| 2020 | 3 |
| 2019 | 1 |
| 2017 | 2 |
| 2016 | 3 |
| 2015 | 1 |
| 2014 | 1 |
| 2013 | 3 |
Showing 10 of 11 earlier years.
No forecast is made for this condition: it averages 0.8 trial starts a year over the five years to September, under the 5 a year the method needs.
Recruitment duration, a model prediction: 3 trials still running at the 2026-10-09 snapshot, fewer than the 5 needed for a median. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are May-Thurner Syndrome trials in? (4)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Phase 3 | 1 |
| Phase 4 | 1 |
| Not applicable | 5 |
| Observational | 12 |
How many May-Thurner Syndrome trials are recruiting? (4)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Recruiting | 3 |
| Completed | 9 |
| Withdrawn | 1 |
| Unknown status | 6 |
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which lead sponsors run the most May-Thurner Syndrome trials? (2)
Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.
| Sponsor | Trials |
|---|---|
| C. R. Bard | 1 |
| Optimed Medizinische Instrumente GmbH | 1 |
Which drugs are being tested for May-Thurner Syndrome? (2)
Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.
| Drug | Trials |
|---|---|
| Rivaroxaban | 2 |
| Fraxiparine | 1 |
Interventions as named in the registry (3)
Shown in this order: most trials first.
| Drug | Trials |
|---|---|
| EC Aspirin | 1 |
| Warfarin VKA | 1 |
| Phlebotonic | 1 |
These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.
Which serious adverse events do May-Thurner Syndrome trials report? (10)
Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.
| Adverse event | Subjects affected | Trials |
|---|---|---|
| Vascular disorders | 9 | 1 |
| Infections and infestations | 8 | 1 |
| General disorders and administration site conditions | 7 | 1 |
| Thrombosis in device | 6 | 1 |
| Cardiac Disorders | 5 | 1 |
Showing 5 of 10 adverse events.
Which publications cover May-Thurner Syndrome? (3)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| The Symptoms-Varices-Pathophysiology classification of pelvic venous disorders: A report of the American Vein & Lymphatic Society International Working Group on Pelvic Venous Disorders. | Journal of vascular surgery. Venous and lymphatic disorders | 2021 | Yes |
| May-Thurner syndrome. | Vascular medicine (London, England) | 2018 | Yes |
| Endovascular treatment for symptomatic iliac vein compression syndrome: a prospective consecutive series of 48 patients. | Annals of vascular surgery | 2014 | Yes |
Not on this page
Not measured: delivery record.
Checked, with nothing recorded for this condition: prevalence, rare-disease identity, and sub-conditions in mesh.