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. 2016 Jan 5;2016(1):CD011837. doi: 10.1002/14651858.CD011837.pub2

EUCTR2011‐003134‐13‐NL.

Trial name or title 5‐Aminolevulinic acid photodynamic therapy for the treatment of pre‐malignant disorders of the vulva (uVIN and lichen sclerosis (LS))
Methods Parallel‐arm, open‐label RCT
Participants Included if:
  • willing to use a medically acceptable method of contraception throughout the study;

  • age 18 and above;

  • histologically proven uVIN, without invasion, or histologically proven LS.


Excluded if:
  • (micro) invasive carcinoma;

  • pregnancy or lactation;

  • past history of vulval cancer;

  • non HPV‐related VIN;

  • other treatment of VIN, anogenital warts or LS within 1 month of start of treatment;

  • hypersensitivity to any components of the cream formulation;

  • history of psoriasis or other inflammatory dermatosis of the vulva;

  • insufficient understanding of the Dutch language.

Interventions Arm 1: low‐dose light fractionated 5‐aminolevulinic acid (gel) and photodynamic therapy (ALA‐PDT)
Arm 2: imiquimod (5% cream)
Outcomes Primary: clinical response to the treatment in VIN or LS lesions after the end of ALA‐PDT treatment measured by:
  • reduction in lesion size after the end of treatment as visualised with high resolution photographs;

  • histological regression of uVIN or LS to 'normal' vulval tissue as visualised in H/E stained sections;

  • relief of symptoms like itching and disorder‐related pain.


Secondary (assessed at 4 weeks post‐treatment):
  • normalisation of immunocompetent cell numbers in the region of the disorder;

  • clearance of HPV DNA in uVIN lesions;

  • normalisation of expression levels of Ki67, p16 and p53;

  • normalisation of expression level of mir‐155;

  • QoL;

  • pain related to treatment.

Starting date
Contact information l.blok@erasmusmc.nl
Notes Emailed 9 February 2015 for more details (none received)