Brightening Cream and Lasers in Post-sclerotherapy Hyperpigmentation

NCT ID: NCT05165524

Last Updated: 2025-03-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-03

Study Completion Date

2025-01-14

Brief Summary

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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.

Detailed Description

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Conditions

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Hyperpigmentation Varicosis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Laser

Group Type ACTIVE_COMPARATOR

QS Nd:YAG laser

Intervention Type DEVICE

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.

Cream

Group Type ACTIVE_COMPARATOR

Triple cream

Intervention Type DRUG

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.

Control

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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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.

Intervention Type DEVICE

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.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Fitzpatrick skin type I-IV
* Presence of at least 1 postinflammatory hyperpigmentation after sclerotherapy

Exclusion Criteria

* History of adverse events related to short-pulsed laser therapy
* Pregnant or breast-feeding women
* Intention to become pregnant during the course of the study
* History of intolerance or allergic reaction to triple cream or one of its ingredients
* Prior treatment with parenteral gold therapy
* Inability to understand the study content
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Insel Gruppe AG, University Hospital Bern

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kristine Heidemeyer, MD

Role: PRINCIPAL_INVESTIGATOR

Insel Gruppe AG, University Hospital Bern

Locations

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Department of dermatology, University Hospital Inselspital, Bern

Bern, , Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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2021-D0062

Identifier Type: -

Identifier Source: org_study_id

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