NCT05165524

Brightening Cream and Lasers in Post-sclerotherapy Hyperpigmentation

Comparison of the Effectiveness of Brightening Creams vs Laser Therapy (QS Nd:YAG 1064nm Laser) in Skin Hyperpigmentation After Sclerotherapy by Objective Measurement: A Randomized Controlled Monocentric Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 66 (actual)
• Sponsor: Insel Gruppe AG, University Hospital Bern · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The treatment of leg veins and varicosis with sclerotherapy is one of the most frequently performed medical intervention in the western world. The most common local side effects of this treatment are hyperpigmentations caused by hemosiderin deposition in the skin as well as post inflammatory hyperpigmentation. Although skin hyperpigmentation after sclerotherapy is a common over several months up to years lasting side-effect with a strong aesthetic impact, scanty data exist about treatment options. Quality-Switched (QS) lasers are efficient in the removal of exogenous and endogenous pigments, such as tattoos as well as epidermal and dermal melanin deposits. The laser light is absorbed by pigment particles, leading to a fragmentation of these particles by a photothermal and photoacoustic effect. Smaller particles can be then phagocyted by macrophages, and transported via the lymphatic system into the lymph nodes. Furthermore, the positive effect of QS lasers in the management of cutaneous siderosis in stasis dermatitis and after sclerotherapy has been described in several cases. Triple cream including hydroquinone, tretinoin and a topical corticosteroid (eg dexamethasone), is the first line therapy in the treatment of post inflammatory hyperpigmentation. This randomized controlled study aims to evaluate the efficiency of two well-known depigmentation methods (QS laser and triple cream) for treatment of post sclerotherapy hyperpigmentation, compared with a control group performing no treatment.

Conditions

• Hyperpigmentation
• Varicosis

Interventions

Type	Name	Description
DEVICE	QS Nd:YAG laser	Patients will be treated with Quality-switched (QS) Neodymium-doped yttrium aluminum garnet (Nd:YAG) laser (MedLite® C6) operating at a wavelength of 1064 nm, fluence range from 2.1 J/cm2 to 8.1 J/cm2 with a 4-6mm spot size.
DRUG	Triple cream	Patients will be treated with a triple brightening cream (Pigmanorm®), applied daily, three times per week for 12 weeks on the lesion. Interruption for 4 days will be adopted in case of irritation/redness. 50+ sun protection cream will be used as well during the treatment period.

Timeline

• Start date: 2022-03-03
• Primary completion: 2025-01-14
• Completion: 2025-01-14
• First posted: 2021-12-21
• Last updated: 2025-03-19

Locations

1 site across 1 country: Switzerland