Which countries run stem-cell trials for Chronic Wounds & Ulcers?
17 countries host at least one registered site; United States alone accounts for around 33% of mentions in this snapshot (2026-08-29).
Country distribution
| Country | Studies with a site there |
|---|---|
| United States | 13 |
| China | 11 |
| South Korea | 4 |
| Germany | 3 |
| Spain | 2 |
| Israel | 2 |
| Turkey (Türkiye) | 1 |
| Australia | 1 |
| Chile | 1 |
| Brazil | 1 |
A study with sites in several countries is counted once per country, taken from the location block of each registry record.
What the map means for Chronic Wounds & Ulcers
Studies follow diabetic-foot services and vascular surgery. Because offloading, debridement and infection control drive outcomes, geography matters far less than whether the basic wound-care protocol is done properly.
Where recruitment is actually open
| Country | Open studies with a site there |
|---|---|
| United States | 2 |
| Pakistan | 1 |
What travelling for a trial actually involves
If a site is abroad, the practical questions are who provides follow-up at home, what happens if an adverse event occurs after you fly back, and whether the protocol permits remote assessment at all. Most do not.
Multi-country studies, named
Registered studies with sites in more than one country — the clearest evidence of collaboration rather than a single-centre series.
No sampled study for this condition lists sites in more than one country, so the research base here is made of single-centre work rather than multinational collaboration.
Why trial geography is not a shortlist
Registration geography is a proxy for research infrastructure, not for outcomes. The relevant question about any destination is what oversight applies to the specific product you would receive there, which is a different enquiry entirely.
Before treating geography as a shortlist, read the legality overview by country and what "best country" actually means here.
When these studies started
Registrations by start year since 2020: 2020 (8), 2021 (2), 2022 (5), 2024 (6), 2025 (1), 2026 (2). Activity for this condition spans 2005 to 2026, which shows whether interest is growing, flat or past its peak.
Frequently asked
Which countries run stem-cell trials for Chronic Wounds & Ulcers?
Sites are registered in 17 countries; the largest is United States (~33% of country mentions, 2026-08-29).
Does a country with many trials mean better treatment there?
No. Registration volume reflects the research and regulatory environment, not the quality of care a private clinic there will provide.
Are trial sites and commercial clinics the same thing?
They are generally distinct. Proximity in a city or even a shared address does not make a commercial clinic part of a registered protocol — ask for the identifier.
Registry and literature counts retrieved 2026-08-29 (ClinicalTrials.gov API v2; PubMed E-utilities). Registration or publication volume measures research activity, not effectiveness or approval. Educational information — not medical advice; verify product, indication, legal pathway and evidence with an independent qualified physician. Page generated 2026-08-29. See our editorial standards.
More on this condition
- Chronic Wounds & Ulcers: cell-therapy evidence and registered trials
- How much does stem cell therapy for Chronic Wounds & Ulcers cost? (2026)
- Chronic Wounds & Ulcers stem cell therapy — your questions answered (2026)
- Chronic Wounds & Ulcers: cell-therapy evidence by therapy class
- MSC vs PRP for Chronic Wounds & Ulcers: what the registries show