Topical haemoglobin spray for diabetic foot ulceration

Area of Science:

• Wound healing research
• Biomedical engineering
• Clinical dermatology

Background:

• Diabetic foot ulceration (DFU) presents a significant clinical challenge, increasing healthcare demands and patient hardship.
• Chronic DFUs are difficult to manage due to complex patient and disease factors.
• Improving oxygenation is a key strategy for managing chronic wounds, especially those with circulatory issues.

Purpose of the Study:

• To evaluate the efficacy of a purified hemoglobin spray solution in treating chronic diabetic foot ulcers (DFU).
• To assess wound surface area reduction, ease of use, adverse events, and patient acceptability of the hemoglobin spray.

Main Methods:

• A descriptive evaluation was conducted in an acute clinical setting.
• Twenty patients with chronic (>12 weeks) DFU were treated with a hemoglobin spray solution over 4 weeks.
• Standard wound care was maintained, with the product applied on eight occasions.

Main Results:

• All wounds showed positive surface area reduction within 4 weeks.
• No adverse events were reported; the product was deemed easy to use and acceptable by patients and clinicians.
• 100% of wounds became slough-free within 4 weeks, with no regression at a subsequent 4-week follow-up.

Conclusions:

• Hemoglobin spray solution incorporation positively impacted DFU healing and slough elimination.
• The study suggests a promising role for hemoglobin-based oxygenation therapies in DFU management.
• Further research is recommended to build a stronger evidence base for this intervention.