Question

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).

Medical review statusMedically reviewedReviewed by: Stem Plus medical teamReviewed on: 2026-08-29Last evidence update: 2026-08-29Methodology and editorial standards
Clinical review team: Dr Kamelia Milcheva, Hematologist · Dr Vadym Uvarov, Board-Certified Physician · Hepatobiliary Surgeon · Candidate of Medical SciencesEditorial responsibility: StemCellAtlas research teamEducational information only. This page does not provide medical advice, diagnosis or a treatment recommendation.

Country distribution

CountryStudies with a site there
United States13
China11
South Korea4
Germany3
Spain2
Israel2
Turkey (Türkiye)1
Australia1
Chile1
Brazil1

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

CountryOpen studies with a site there
United States2
Pakistan1

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.

Explore all sections · Data & downloads