The Study of Plum-blossom Needling Enhancing Efficacy of Aminolevulinic Acid-photodynamic Therapy for Actinic Keratosis

  • End date
    Dec 30, 2021
  • participants needed
  • sponsor
    Shanghai Dermatology Hospital
Updated on 23 January 2021


Background Limited in the depth of absorption and penetration of photosensitizers, ALA-PDT treatment is not strong enough for thickening significantly AK lesions. Pre-study has proved that plum-blossom needling facilitates delivery of topical ALA into the dermis. It could help ALA to diffuse a little more broadly in superficial dermis and obtain similar clinical effect with a much lower cost.

Objective We sought to investigate whether plum-blossom needling (PBN) would enhance the efficacy of ALA-PDT for AKs.

Methods Two hundred and fifty patients, previously diagnosed as having AKs of the face and scalp, were randomized distribution into two groups. The PBN-ALA-PDT group underwent vertical skin tapping with PBN before applying 10% ALA cream and narrow-band light-emitting diode (LED) irradiation (mean 633 nm, with a standard deviation [SD] of 10 nm; 100-200 J/cm2). The ALA-PDT group received ALA cream and irradiation only. During the next 1 year period of follow up, patients were clinically evaluated for new AKs.

Condition Actinic keratosis
Treatment PBN
Clinical Study IdentifierNCT03596619
SponsorShanghai Dermatology Hospital
Last Modified on23 January 2021


Yes No Not Sure

Inclusion Criteria

(1) Clinical diagnosed with AK (OLSEN classification grade I, II, III), aged > 18 years (Because no dosing or adverse event data are currently available on the use of topical aminolevulinic acid in patients <18 years of age, children are excluded from this study); (2) All patients are unfit and reluctant to undergo surgery for any reasons, and volunteered to participate in the study and ability to understand and the willingness to sign a written informed consent. Patents are willing to pay for the treatment, and agreed to take a picture of the skin lesions

Exclusion Criteria

(1) Those who had ALA-PDT and any other studies that affect this study within 12 weeks ; (2) There are other facial diseases that may affect the efficacy evaluation, such as other photodermatosis; (3) Take phototoxic or photosensitizer within 8 weeks; (4) clinical and / or pathological prove that the tumor has invaded other organs or tissues; (5) Serious immunocompromised persons; (6) scar constitution; (7) Patients are known to have skin photosensitivity, porphyria, or allergies to ALA, light or lidocaine; (8) Persons are suffering from severe internal diseases, mental and mental illness, infectious diseases or pregnant or lactating women
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