Clinical trial Recruiting at 22 sites Phase 3 Interventional Ages 18 to 85

Reformulated Levulan Kerastick plus blue‑light PDT for actinic keratoses on the upper arm

Official title: Randomized, Multi-Center, Evaluator-Blind, Vehicle-Controlled Study to Evaluate Efficacy and Safety of Reformulated Levulan Kerastick Plus Photodynamic Therapy (PDT) for Field-Directed Treatment in Patients With Actinic Keratosis (AK) of Upper Extremities

Run by Sun Pharmaceutical Industries Limited · NCT07144852 · Data updated 2026-11-12

This trial will test whether applying a reformulated Levulan Kerastick (aminolevulinic acid 20%) followed by blue‑light photodynamic therapy can clear 4–8 mild-to-moderate actinic keratoses on one upper arm in adults.

More Actinic Keratosis (AK) trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment260 (estimated)
SponsorSun Pharmaceutical Industries Limited
Industry-sponsored
Locations22 sites (Phoenix, Arizona and 21 other locations)
StatusRecruiting
StartedNovember 29, 2025
Main results expectedJanuary 2027
Study endsApril 2027
Registry record updatedNovember 4, 2026
Trial IDNCT07144852 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–85 in good general health who have 4–8 Olsen grade 1–2 actinic keratoses within a single ~25 cm² area on one upper extremity and who can attend in-person clinic visits and follow protocol restrictions (sun avoidance, stopping topical products as required).

Probably not a fit

Patients with Olsen grade 3 lesions, suspicious or untreated skin cancers, lesions outside the specified area, pregnant or breastfeeding individuals, or those unable to comply with visit or safety requirements are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 3, randomized, multi-center, evaluator-blind, vehicle-controlled trial enrolls approximately 260 adults with 4–8 mild to moderate actinic keratoses in a single 25 cm² area on one upper extremity. Participants are randomized to receive either reformulated Levulan Kerastick (ALA HCl 20%) or vehicle, each followed by exposure to a BLU-U blue‑light PDT illuminator, with up to two PDT sessions given depending on lesion clearance. The primary outcome is complete clearance rate at Week 12, with secondary endpoints including lesion-level clearance rates, partial clearance, change in lesion count and area, recurrence, cosmetic response, and patient satisfaction. Safety monitoring includes adverse events, local skin reactions, vital signs, and laboratory tests.

Why it matters

Potential benefit: If successful, this approach could increase clearance of multiple AK lesions across an upper-arm field and improve cosmetic outcomes with a topical, clinic-delivered procedure.

How similar studies have gone: Previous trials of topical aminolevulinic acid plus blue‑light PDT, including older Levulan formulations, have shown lesion clearance for AK, and this Phase 3 trial tests a reformulated product in that established treatment class.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patient is a male or non-pregnant female aged 18-85 years.
2. Patient must have 4-8 mild to moderate actinic keratosis (AK) lesions (Olsen grade 1 or 2) in a single treatment area on their Index arm, each measuring up to 1 cm in diameter and spaced at least 1 cm apart.

   \[The treatment area should be approximately 25 cm², located on the extensor surface of only one of the upper extremities that is selected as the Index arm\]
3. Patients must be in good general health, avoid sunbathing or tanning devices, and maintain a consistent skincare routine throughout the study.
4. Patient is willing to stop using all topical products within the Treatment Area within 8 hours of a scheduled clinic visit with an efficacy evaluation.
5. Women of childbearing potential must use highly effective contraception; men with such partners must use barrier methods unless surgically sterile.

Exclusion Criteria:

1. Presence of Olsen grade 3 AK, untreated or suspicious skin cancers, or significant skin abnormalities (e.g., psoriasis, eczema) in the treatment area.
2. Active herpes simplex infection or history of ≥2 outbreaks in the treatment area within the past year.
3. History of cutaneous photosensitization, porphyria, photodermatosis, or hypersensitivity to porphyrins.
4. Positive human immunodeficiency virus (HIV) test result, hepatitis B surface (HBS) antigen, or hepatitis C virus (HCV) test result
5. Immunosuppressed status (e.g., HIV, organ transplant) or known coagulation defects.
6. Use of specific topical therapies (e.g., retinoids, steroids, cryotherapy, PDT, chemical peels) on the treatment area within 2 days to 8 weeks prior to randomization.
7. Recent use of certain systemic therapies (e.g., corticosteroids, immune-modulators, retinoids, cytotoxic drugs) within 6 weeks to 6 months prior to randomization.
8. Recent use of hypericin or other phototoxic/photoallergic medications (e.g., tetracyclines, psoralenes, St. John's wort) within 8 weeks of randomization.
9. Clinically significant or unstable illnesses, or history of alcohol/drug abuse in the past year.
10. Pregnancy/lactation, recent or current participation in another clinical study, or any other condition deemed unsuitable by the Investigator.

Where it's running

  • Medical Dermatology Specialist
    Phoenix, Arizona, United States
    Recruiting
  • Center for Dermatology Clinical Research, Inc
    Fremont, California, United States
    Recruiting
  • Clarity Dermatology, PLLC
    Castle Rock, Colorado, United States
    Recruiting
  • Center for Clinical and Cosmetic Research
    Aventura, Florida, United States
    Recruiting
  • Ziaderm Research LLC
    North Miami Beach, Florida, United States
    Recruiting
  • Northwest Clinical Trials, Inc.
    Boise, Idaho, United States
    Recruiting
Show 16 more locations
  • Arlington Dermatology
    Rolling Meadows, Illinois, United States
    Recruiting
  • The Indiana Clinical Trials Center, PC
    Plainfield, Indiana, United States
    Recruiting
  • Dermatologic Surgery Center of Washington
    Chevy Chase, Maryland, United States
    Recruiting
  • Minnesota Clinical Study Center
    New Brighton, Minnesota, United States
    Recruiting
  • Medisearch, LLC
    Saint Joseph, Missouri, United States
    Recruiting
  • Onsite Clinical Solutions, LLC
    Huntersville, North Carolina, United States
    Recruiting
  • Oregon Dermatology and Research Center
    Portland, Oregon, United States
    Recruiting
  • Dermatology Associates of Plymouth Meeting
    Plymouth Meeting, Pennsylvania, United States
    Recruiting
  • Palmetto Clinical Trial Services, LLC
    Anderson, South Carolina, United States
    Recruiting
  • Palmetto Clinical Trial Services, LLC
    Greenville, South Carolina, United States
    Recruiting
  • Dermatology Associates of Knoxville
    Knoxville, Tennessee, United States
    Recruiting
  • Tennessee Clinical Research Center
    Nashville, Tennessee, United States
    Recruiting
  • J&S Studies, Inc
    College Station, Texas, United States
    Recruiting
  • Pflugerville Dermatology Clinical Research Center, Inc. d/b/a Austin Institute for Clinical Research
    Pflugerville, Texas, United States
    Recruiting
  • Dermatology of Seattle & Bellevue
    Burien, Washington, United States
    Recruiting
  • Premier Clinical Research
    Spokane, Washington, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.