Using imaging to monitor treatment of skin lesions caused by sun damage

Noninvasive Imaging Techniques to Monitor Photosensitizer and Singlet Oxygen Levels During Photodynamic Therapy of Actinic Keratoses

Phase 2 Interventional Case Comprehensive Cancer Center · NCT05923060

This study is testing a new imaging device to see if it can help track how well photodynamic therapy works for people with sun-damaged skin lesions called actinic keratoses.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years and up
SexAll
SponsorCase Comprehensive Cancer Center Academic / other
Drugs / interventionsradiation
Locations1 site (Cleveland, Ohio)
Trial IDNCT05923060 on ClinicalTrials.gov

What this trial studies

This study tests a new video device that captures images of actinic keratoses during photodynamic therapy (PDT) to assess treatment effectiveness. Participants will receive standard PDT with red light while their lesions are monitored through imaging to evaluate the production of singlet oxygen and photosensitizer levels. The goal is to determine if these measurements can predict how well the treatment works. The study aims to improve treatment strategies for actinic keratoses by establishing optimal conditions for PDT.

Who should consider this trial

Good fit: Ideal candidates are individuals with at least 10 actinic keratoses lesions on their arms or legs.

Not a fit: Patients who are pregnant, nursing, or have a history of photosensitivity diseases may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective treatments for actinic keratoses, improving patient outcomes.

How similar studies have performed: Other studies have shown promise in using imaging techniques to enhance treatment monitoring, making this approach both relevant and potentially impactful.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants who have at least 10 Actinic Keratoses lesions on the arms of legs, and with two AK lesions close enough to be seen together within a selected region of interest (ROI)
* Participants must be able to understand and are willing to sign a written informed consent document

Exclusion Criteria:

* Female participants cannot be or become pregnant, nor can be nursing while on this study
* Using any topical treatment on their AKs; must stop at least one month prior
* Currently undergoing treatment for other cancers with medical or radiation therapy
* Patients with a known hypersensitivity to 5-aminolevulinic acid or any component of the study material
* Patients with history of a photosensitivity disease, such as porphyria cutanea tarda

Where this trial is running

Cleveland, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Actinic KeratosesRed LightPhotodynamic TherapyProtoporphyrin IX
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.