For Healthcare Professionals

A Study to Evaluate Efficacy and Safety of Light Dose in Subjects With PWB Treated With Hemoporfin + PDT


About the study

This is a multi-center, randomized, double-blind, vehicle-controlled, and sequential group Phase 2 study. Eligible subjects aged 18 to 65 years old with PWB of face and/or neck area (except subjects for Stage One) will receive Hemoporfin PDT or vehicle PDT in 8-week cycles at fixed drug dose (5 mg/kg) and different light fluence.

Who can take part

You may be eligible to participate in the study if you meet the following criteria:


Inclusion Criteria:

  1. Subject must be 18 to 65 years of age inclusive, at the time of signing the informed consent.
  2. Subject is Fitzpatrick skin type I-VI.
  3. A male subject must agree to use contraception during the Treatment Period and for at least 6 months after the last dose of study treatment and refrain from donating sperm during this period.

A female subject is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:

Not a woman of childbearing potential (WOCBP) . OR A WOCBP who agrees to follow the contraceptive guidance during the Treatment Period and for at least 30 days after the last dose of study treatment.

  1. The subject has a clinical diagnosis of PWB located on the face and/or neck.
  2. The longest diameter of the treatment area is ≥3 cm, and the short diameter is ≥2 cm.
  3. Subject is capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
  4. Subject, in the Investigator's opinion, is in good general health and free of any disease state or physical condition that may impair the evaluation of PWB or expose the subject to an unacceptable risk by study participation.


Exclusion Criteria:

  1. Subject is pregnant, lactating, or is planning to become pregnant during the study.
  2. Subject has plaque/nodular changes and severe hypertrophy within the target PWB area.
  3. Subject has Sturge-Weber syndrome or PWB involving ophthalmic nerves.
  4. Subject has any skin pathology or condition that, in the Investigator's opinion, could interfere with the evaluation of the study drug or requires use of interfering topical, systemic, or surgical therapy.
  5. Subject is immunosuppressed related to medication use and/or disease.
  6. Subject has clinically significant ECG abnormalities at Screening
  7. Subject has clinically significant laboratory abnormalities as assessed by the Investigator at Screening.
  8. Subject has received any therapy on the treatment region that, in the Investigator's opinion, may affect the target PWB area.
  9. Subject is currently enrolled in an investigational drug or device study, including clinical studies in dermatology.
  10. Subject has used an investigational drug or investigational device treatment within 30 days prior to C1D1.
  11. Subject is known or in the opinion of the Investigator likely to be noncompliant with the requirements of the study protocol (eg, due to alcoholism, drug dependency, mental incapacity).
  12. Subject has a history of either significant neurological events (such as major stroke) or a mental condition rendering him/her unable to understand the nature, scope, and possible consequences of the study.
  13. Subject has an unstable cardiac disease or has any medical condition that in the opinion of the Investigator may worsen from receipt of study treatment or subject participation.
pin location

Study Locations

Enter your ZIP code/Postal code/PIN code to locate study sites near you:

How to Apply

Contact the study center to learn if this study is a good match for you.

Study’s details


Port-wine Birthmark,Port-Wine Stain,Nevus Flammeus

Age (in years)

18 - 65


Phase 2

Participants needed


Est. Completion Date

Apr 30, 2026

Treatment type



Shanghai Fudan-Zhangjiang Bio-Pharmaceutical Co., Ltd. identifier


Study number


Understanding Clinical Trials

Get answers to your questions about clinical trials.What is a clinical research?What does taking part in clinical trials involve?What should I ask the trial doctor?


Sign up to save your favorites, 
receive newsletters, resources, and alerts 
about clinical trials related to your conditions of interest.