Efficacy and Safety of Blue Light (453 nm) Treatment for Mild Psoriasis Vulgaris Over Three Months Compared to Vitamin D.
Psoriasis Vulgaris

About this trial
This is an interventional treatment trial for Psoriasis Vulgaris
Eligibility Criteria
Inclusion Criteria:
- Signed and dated informed consent prior to any study-mandated procedure
- Good health as determined by the Investigator
- Willing and able to comply with study requirements
- Skin type I-IV according to Fitzpatrick
- Mild plaque-type psoriasis vulgaris with a Psoriasis Area and Severity Index (PASI) ≤ 10 and body surface area (BSA) ≤ 10 at screening.
Presence of two comparable psoriatic plaques suitable to be defined as study areas as follows:
- located on extremities (plaques located on the palms or sole of the feet are not suitable)
- Both areas located either on lower or upper extremity
- Can be located on the same extremity
- Distance between the two study areas ≥ 11cm (border to border)
- If lesion is too large to be fully covered, partial treatment possible
- Otherwise healthy according to physical examination
- Aged 18 years up to ≤74 years
- Reliable method of contraception for women of childbearing potential (i.e. low failure rate less than 1per cent per year; e.g. oral contraceptives, intra-uterine device (IUD) or transdermal contraceptive patch)
- Willing to abstain from excessive sun / UV exposure (e.g. sunbath, solarium) during the course of the study
Exclusion Criteria:
General
- Inmates of psychiatric wards, prisons, or other state institutions
- Investigator or any other team member involved directly or indirectly in the conduct of the clinical study
- Participation in another clinical trial within the last 30 days
- Pregnant or lactating women Medical History
- Photodermatosis and/or Photosensitivity
- Porphyria and/or hypersensitivity to porphyrins
- Patients with current diagnosis of erythrodermic, exfoliative or pustular psoriasis
- Congenital or acquired immunodeficiency
- Patients with any of the following conditions present on the study areas: naevi or signs of hyperpigmentation, viral (e.g. herpes or varicella) lesions of the skin, fungal and bacterial skin infections, parasitic infections and atrophic skin
- Patients with any of the following conditions present or who have been diagnosed in the past with any of the following conditions on the study areas: skin cancer, severe actinic damage and other precancerous lesions
Patients with genetic deficiencies attached with increased sensitivity to light or increased risk to dermatologic cancer ( i.e. Xeroderma pigmentosum, Cockayne Syndrome, Bloom-Syndrome) Concomitant medication/treatment in medical history and during the study Required
- Treatment of target and control area with Excipial U10 Lipolotio (Galderma)
- Treatment of control area with Daivonex (Leo Pharma) Allowed
- Topical treatment of non-study areas with Vitamin D or WHO group I-II corticosteroids or mometasone Not allowed Within 3 months prior to baseline
- ustekinumab Within 2 months prior to baseline
- adalimumab, alefacept, infliximab Within 1 month prior to baseline
- Etanercept
- Systemic corticosteroids
- Retinoids
- Immunosuppressants (e.g. methotrexate, ciclosporin, azathioprine, chemotherapeutics)
- oral psoralen with ultraviolet A (PUVA)
- Topical or intranasal/inhalation therapy with potent or very potent (WHO group III-IV) corticosteroids
Within 2 weeks prior to baseline
- ultraviolet B light (UVB) / ultraviolet A light (UVA)
- Topical therapy with
- WHO group I-II corticosteroids
- Topical retinoids
- Vitamin D analogues
- Topical immunomodulators (e.g. calcineurin inhibitors)
- Anthracen derivatives
- Tar
- Salicylic acid
Intranasal/inhalation therapy with WHO group I-II corticosteroids At baseline
- Photo-sensitizing medication (e.g. psoralen, tetracycline, nalidixic acid, furosemide, amiodarone, phenotiacine, chinclone, fibrates, hypericumperforatum, arnica, valerian, tar, psoralen, ketoprofen) or colours (e.g. thiazide, toluidine blue, eosin, methylene blue, rose Bengal, acridine)
- Initiation of, or expected changes in concomitant medication that may affect psoriasis vulgaris (e.g., beta blockers, anti-malaria drugs, lithium and angiotensin converting enzyme (ACE) inhibitors)
Sites / Locations
- Department of Dermatology and Allergology, Medical faculty of the RWTH Aachen
Arms of the Study
Arm 1
Arm 2
Active Comparator
Active Comparator
group30
group15
Treatment of the target area with 30 minutes of blue light at 453nm compared to Vitamin D creme Daivonex on contralateral Plaque of same patient.
Treatment of the target area with 15 minutes of blue light at 453nm compared to Vitamin D creme Daivonex on contralateral Plaque of same patient.