Centellicum® improves scarring of traumatic wounds with irregular edges (lacerations).

Background: Centellicum^®, a standardized Centella Asiatica extract, has been used orally for fibrosis and scar prevention. The main aim of this 2-month registry pilot study was the reduction of visible, significant scars and keloids after suturing traumatic wounds with irregular edges (lacerations), using Centellicum^®.

Methods: The effects of oral Centellicum^® (450 mg/day; 2 capsules) and a standard management (SM) on wound healing were compared with the effects of a control group that used only the standard management.

Results: Forty-eight otherwise healthy male subjects with lacerations requiring suturing were included in the study. 25 took Centellicum^® in addition to the standard management and 24 followed the standard management only. No side effects were observed with the supplement. Centellicum^® supplementation showed very good tolerability and compliance with 98% of the capsules correctly used. The two groups of otherwise healthy male subjects with lacerations were considered comparable at inclusion and there were no dropouts. No infections were observed. At 60 days, the scar dimensions were significantly smaller in the supplemented group (P<0.05). The elevation of the scar above the surrounding, non-affected skin, was also significantly reduced in the Centellicum^® group compared to controls (P<0.05). Local pain levels were significantly lower (P<0.05) in the supplement group at 60 days. Additionally, the scar redness score was significantly lower in the supplement group compared to controls (P<0.05) by the end of the study. The incidence of initial keloid formation was significantly lower in the supplemented subjects at 60 days, as determined by finger-point pressure palpation and high-resolution ultrasound (P<0.05). Skin flux, as measured by laser Doppler flowmetry (indicating hypervascularization due to local inflammation) was lower (P<0.05) with Centellicum^® at the end of the study. Inflammation, assessed via thermography (hot spots on the healing skin) was less visible and reduced in most areas in the supplement group (P<0.05) in comparison with the control group. Plasma oxidative stress was significantly lower in the Centellicum^® group at the end of the study (P<0.05).

Conclusions: Oral Centellicum^® intake over 2 months improved healing of lacerations and reduced scarring, fibrosis and keloids at the level of the lesions. A larger study setup with more patients and with a prolonged study duration is needed to confirm these initial results.