Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 22, 2026, 2:59 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Topical Aminolevulinate Clear all
Completed Phase 2 Interventional Results available

Short-incubation Levulan Photodynamic Therapy Versus Vehicle for Face/Scalp Actinic Keratosis (AK)

NCT01475955
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Broad Area ALA 1-hour incubation, Broad Area ALA 2 hour incubation, broad area ALA 3-hour incubation, Spot ALA 2 hour incubation, Vehicle PDT, Blue Light Treatment
Drug · Device
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
13
States / cities
La Jolla, California • Los Angeles, California • San Diego, California + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional Results available

Maximal Use Systemic Exposure (MUSE) Study of Levulan Kerastick

NCT02281136
View directory record Official record
Conditions
Keratosis, Actinic
Interventions
Aminolevulinic Acid (ALA), BLU-U
Drug · Device
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
3
States / cities
San Diego, California • Carmel, Indiana • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 1 Interventional Results available

Study to Evaluate Safety and Tolerability of BF-200 ALA (Ameluz®) for Photodynamic Therapy in the Treatment of the Expanded Field of Actinic Keratosis on Face and Scalp

NCT05060237
View directory record Official record
Conditions
Actinic Keratosis, Keratosis, Actinic, Keratosis
Interventions
BF-200 ALA and red light LED lamp
Combination Product
Lead sponsor
Biofrontera Bioscience GmbH
Industry
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
9
States / cities
Phoenix, Arizona • Greenwood Village, Colorado • Indianapolis, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional

Evaluating the Use of Photodynamic Therapy to Treat Facial Cutaneous Squamous Cell Carcinoma in Situ (isSCC)

NCT06159842
View directory record Official record
Conditions
Facial Cutaneous Squamous Cell Carcinoma in Situ
Interventions
Aminolevulinic Acid 20% Topical Solution with Blue Light
Combination Product
Lead sponsor
The Center for Clinical and Cosmetic Research
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Safety, Tolerability and Efficacy of BF-200 ALA (Ameluz®) in the Field-directed Treatment of Actinic Keratosis (AK) on the Extremities and Neck/Trunk With Photodynamic Therapy (PDT) Using a RhodoLED Lamp

NCT05662202
View directory record Official record
Conditions
Actinic Keratoses
Interventions
BF-200 ALA and red light LED lamp, Vehicle and red light LED lamp
Combination Product
Lead sponsor
Biofrontera Inc.
Industry
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
14
States / cities
Phoenix, Arizona • Greenwood Village, Colorado • Delray Beach, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 22, 2026, 2:59 PM EDT
Withdrawn Not applicable Interventional

Photodynamic Therapy Mediated by Topical Application of 5- ALA for the Treatment of Actinic Keratoses

NCT00814528
View directory record Official record
Conditions
Actinic Keratosis
Interventions
5-ALA plus Blu-Light, 5-FU, Imiquimod or treatment with cryotherapy
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 95 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of Photodynamic Therapy With Levulan Kerastick + Blue Light for Actinic Keratoses on the Upper Extremities

NCT02137785
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Aminolevulinic Acid (ALA), Topical Solution Vehicle, Blue Light Photodynamic Therapy Illuminator (BLU-U)
Drug · Device
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
269 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
13
States / cities
Fremont, California • San Diego, California • Aventura, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2015 · Synced Sep 22, 2026, 2:59 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Study to Evaluate the Safety and Efficacy of BF-200 ALA (Ameluz®) and BF-RhodoLED® in the Treatment of Superficial Basal Cell Carcinoma (sBCC) With Photodynamic Therapy (PDT).

NCT03573401
View directory record Official record
Conditions
Superficial Basal Cell Carcinoma
Interventions
Photodynamic therapy (PDT) (ALA-PDT, Ameluz®-PDT), Placebo Photodynamic therapy (PDT) (vehicle to BF-200 ALA containing no active ingredient)
Combination Product
Lead sponsor
Biofrontera Inc.
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2029
U.S. locations
18
States / cities
Phoenix, Arizona • Fountain Valley, California • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 22, 2026, 2:59 PM EDT
Withdrawn Not applicable Interventional

Topical 5-ALA-PDT With Blu-U Therapy Versus Topical 5-ALA With Pulse Dye Laser In Treating Recalcitrant Acne Vulgaris

NCT00814918
View directory record Official record
Conditions
Acne Vulgaris
Interventions
5-ALA with Blu-U Light, 5-ALA with Candela V-beam Pulse Dye Laser
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 79 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Not applicable Interventional

Blue Light Photodynamic Therapy Treatment for Distal and Lateral Subungual Toenail Onychomycosis

NCT03022903
View directory record Official record
Conditions
Toenail Onychomycosis, Distal and Lateral Subungual Toenail Onychomycosis
Interventions
Aminolevulinic Acid (ALA)
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 70 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 6, 2022 · Synced Sep 22, 2026, 2:59 PM EDT
Withdrawn Phase 3 Interventional

Phase 3 Study of Levulan With New Blue Light for AK on the Face or Scalp

NCT03024060
View directory record Official record
Conditions
Actinic Keratosis
Interventions
ALA, Vehicle, IBL 20 mW, IBL 10 mW
Drug · Device
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
7
States / cities
San Diego, California • Arlington Heights, Illinois • Carmel, Indiana + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Sep 22, 2026, 2:59 PM EDT
Terminated Phase 3 Interventional Results available

Combination Therapy With 5-Fluorouracil and Photodynamic Therapy in Post-transplant Premalignant Skin Disease

NCT01525329
View directory record Official record
Conditions
Actinic Keratosis, Organ or Tissue Transplant; Complications
Interventions
5-Fluorouracil
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 14, 2022 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional Results available

Maximal Use Systemic Exposure Study of Levulan Kerastick (MUSE 2)

NCT02628236
View directory record Official record
Conditions
Keratosis, Actinic
Interventions
Aminolevulinic Acid (ALA), BLU-U
Drug · Device
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
2
States / cities
Austin, Texas • College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 17, 2017 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 1Phase 2 Interventional

DUSA: Cyclic PDT for the Prevention of AK & NMSC in Solid Organ Transplant Recipients

NCT03110159
View directory record Official record
Conditions
Skin Cancer, Non-melanoma Skin Cancer, Sun Damaged Skin, Actinic Keratosis
Interventions
Levulan® Kerastick®, BLU-U Blue Light Photodynamic Therapy
Drug
Lead sponsor
Medical Dermatology Specialists
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 22, 2026, 2:59 PM EDT
Recruiting Not applicable Interventional

Vitamin D Effects on Immune Microenvironment of Nonmelanoma Skin Cancer After Photodynamic Therapy (PDT)

NCT07241585
View directory record Official record
Conditions
Nonmelanoma Skin Cancer, Basal Cell Carcinoma, Squamous Cell Carcinoma
Interventions
Vitamin D (VitD), Placebo, Photodynamic therapy (PDT), Mohs surgery or electrodessication & curettage (ED&C) (standard of care)
Dietary Supplement · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 1 Interventional Results available

Phase I Photodynamic Therapy (PDT) for Benign Dermal Neurofibromas (NF1)

NCT01682811
View directory record Official record
Conditions
Neurofibromatoses
Interventions
Part 1 Levulan injection, Part 1 Levulan surface application, Part 1 Levulan surface application twice, Part 1 Levulan surface application twice with microneedling, Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 1, Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 2, Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 3
Drug
Lead sponsor
Harry T Whelan, MD
Other
Eligibility
18 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional

Photodynamic Therapy in Treating Patients With Skin Cancer

NCT00002963
View directory record Official record
Conditions
Non-melanomatous Skin Cancer
Interventions
aminolevulinic acid hydrochloride, conventional surgery
Drug · Procedure
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2007
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jan 30, 2013 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Daylight Photodynamic Therapy With Aminolevulinic Acid for Actinic Keratoses

NCT03327831
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Aminolevulinic Acid
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional Results available

Controlled Study of the Occurrence of Actinic Keratosis on the Face After Cryotherapy + Aminolevulinic Acid (ALA) Photodynamic Therapy

NCT02239679
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Aminolevulinic Acid, Topical Solution Vehicle, BLU-U, Cryotherapy
Drug · Device · Procedure
Lead sponsor
DUSA Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
8
States / cities
San Diego, California • Arlington Heights, Illinois • Carmel, Indiana + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Not applicable Interventional Results available

The Use of Microneedles to Expedite Treatment Time in Photodynamic Therapy

NCT02594644
View directory record Official record
Conditions
Keratosis, Actinic
Interventions
Microneedle Roller, Aminolevulinic Acid, Blue Light
Device · Drug · Radiation
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Nov 28, 2018 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 1 Interventional Results available

Daylight Photodynamic Therapy for Actinic Keratosis

NCT03322293
View directory record Official record
Conditions
Actinic Keratoses
Interventions
Aminolevulinic Acid Topical 20% Topical Solution, BLU-U blue light phototherapy illuminator
Drug · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial Evaluating the Role of Systemic Antihistamine Therapy in the Reduction of Adverse Effects Associated With Topical 5-aminolevulinic Acid Photodynamic Therapy

NCT02451579
View directory record Official record
Conditions
Actinic Keratoses
Interventions
Antihistamine Cetirizine Hydrochloride, Placebo
Drug · Other
Lead sponsor
Goldman, Butterwick, Fitzpatrick and Groff
Other
Eligibility
19 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Sep 22, 2026, 2:59 PM EDT
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

PDT vs Peels for Treatment of Actinic Keratoses

NCT04429308
View directory record Official record
Conditions
Actinic Keratoses
Interventions
Photodynamic Therapy, Chemical Peels
Procedure · Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 22, 2026, 2:59 PM EDT
Completed Phase 2 Interventional

Study to Evaluate the Safety and Efficacy of BF-200 ALA (Ameluz®) and BF-RhodoLED® in the Treatment of Moderate to Severe Acne Vulgaris With Photodynamic Therapy in Adults

NCT05080764
View directory record Official record
Conditions
Acne Vulgaris
Interventions
1h Incubation Photodynamic therapy (PDT) (ALA-PDT, Ameluz®-PDT), 1h Incubation Photodynamic therapy (PDT) (vehicle to BF-200 ALA containing no active ingredient), 3h Incubation Photodynamic therapy (PDT) (ALA-PDT, Ameluz®-PDT), 3h Incubation Photodynamic therapy (PDT) (vehicle to BF-200 ALA containing no active ingredient)
Combination Product
Lead sponsor
Biofrontera Inc.
Industry
Eligibility
16 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
9
States / cities
Fountain Valley, California • San Diego, California • Delray Beach, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 22, 2026, 2:59 PM EDT