An observational study in Hard-to-heal Wounds, AI (Artificial Intelligence) and Wound Care, sponsored by National Taiwan University Hospital. Not yet recruiting at 1 site in Taiwan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-02.
Sponsored by National Taiwan University Hospital · Observational
This study aims to develop a low-cost, marker-free intelligent wound assessment system that can analyze wound photos taken with a standard smartphone. By comparing wound images over time, the system will generate a quantifiable Wound Progression Index (WPI) to provide objective feedback on whether a wound is improving, stable, or worsening. The long-term goal is to support early detection of wound deterioration and improve wound care in both clinical and home settings.
Participants receiving routine wound care will undergo standardized wound photography during dressing changes. Longitudinal wound images will be analyzed to develop and validate a marker-free wound progression assessment method. No treatment assignment or modification of standard clinical care will occur.
545 studies on the registry are indexed under Pressure Ulcer; 129 are open to participants now.
This study's planned enrollment of 1,000 is above the median of 138 across 110 observational studies indexed under Pressure Ulcer.
Browse Pressure Ulcer studies →National Taiwan University Hospital is the lead sponsor of 2,615 studies on the registry; 576 are open to participants now.
Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.
Counted across the registry records on this site, refreshed daily.
Adult patients with hard-to-heal wounds located on body sites that can be fully captured within a single standardized image.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
patients with hard-to-heal wounds
Other: Marker-free wound image registration technology
Marker-free longitudinal wound image registration and wound progression assessment using serial wound photographs.
Agreement between marker-free and marker-based wound progression indices
To evaluate the agreement between the Marker-Free Wound Progression Index (WPI\_MF) and the gold-standard marker-based Wound Progression Index (WPI\_GS) derived from longitudinal wound photographs.
Time frame: Up to 6 months
Minimum image overlap threshold for reliable analysis
To determine the minimum overlap ratio required to achieve statistically acceptable agreement.
Time frame: Up to 6 months
Plan to share: Yes — wound images
Supporting information: Study protocol
Time frame: starting 6 months after publication
Access criteria: Requests must include a structured research proposal specifying the objectives, analysis plan, and data required. All requests will be reviewed by the corresponding investigator and the study's principal research team to ensure scientific validity, ethical compliance, and protection of participant confidentiality. Additional approval from an institutional review board or ethics committee may be required depending on the nature of the proposed analysis.
Start is estimated for Jun 2026; primary completion for Dec 2027, 18 months later.
Of 49 observational studies under Pressure Ulcer, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 141. This study's planned 18 months is below that.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in May 2026. You cannot join it, but the record below documents what was studied.
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