Clinical trial · Interventional
Phase I Photodynamic Therapy (PDT) for Benign Dermal Neurofibromas (NF1)
Photodynamic Therapy for Benign Dermal Neurofibromas Using Levulan Kerastick For Topical Solution, Plus Illumination With Red Light
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
GENERAL OBJECTIVE The general objective is to assess the safety and efficacy of photodynamic therapy (PDT) in the treatment of neurofibromatosis 1 (NF1) tumors in the skin. SPECIFIC OBJECTIVE This is a light dose escalation pilot study to determine the safety and efficacy of PDT using 5-aminolevulinic acid (ALA) and 633 nm light in the treatment of benign dermal neurofibromas. Specifically, the primary goal of the current study is to determine the maximum tolerable light doses that can be administered to subjects undergoing topical photoillumination photodynamic therapy with standard application of Levulan Kerastick (ALA) for Topical Solution.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Neurofibromatoses | — | UNRESOLVED | — |
Interventions
Interventions (7)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 1 | Drug | — | UNRESOLVED |
| Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 2 | Drug | — | UNRESOLVED |
| Levulan (5-aminolevulinic acid) photodynamic therapy - Dose level 3 | Drug | — | UNRESOLVED |
| Part 1 Levulan injection | Drug | — | UNRESOLVED |
| Part 1 Levulan surface application | Drug | — | UNRESOLVED |
| Part 1 Levulan surface application twice | Drug | — | UNRESOLVED |
| Part 1 Levulan surface application twice with microneedling | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (7)
- type
- EXPERIMENTAL
- label
- Part 1 Levulan injection
- description
- 5-aminolevulinic acid uptake by control lesions after Levulan vehicle (placebo) injection and 3 hr incubation, and by Levulan treated lesions after 3 or 24 hr incubation.
- interventionNames
- Drug: Part 1 Levulan injection
- type
- EXPERIMENTAL
- label
- Part 1 Levulan painting
- description
- 5-aminolevulinic acid uptake by control lesions after Levulan vehicle (placebo) surface application and 3 hr incubation, and by Levulan treated lesions and 3 or 24 hr incubation.
- interventionNames
- Drug: Part 1 Levulan surface application
- type
- EXPERIMENTAL
- label
- Part 1 Levulan painted twice
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 90 Years
Show eligibility criteria text
Inclusion Criteria: Subjects with NF1 will be selected for photodynamic therapy on the following criteria. 1. Age: 18 years or older. 2. NF1 will be diagnosed by American Academy of Neurology guidelines. 3. Location of tumor: cutaneous, trunk or limbs only. 4. Tumor type: superficial dermal neurofibromas, less than or equal to 4 mm deep. 5. Growth confirmation: direct measurement for the dermal neurofibromas, ruler and photo-volumetric method. 6. Informed consent of subject. 7. Absence of any other malignancy. 8. Only failures to meet criteria 1-6 due to the primary disease will be disqualifying Exclusion Criteria: Subjects will be excluded from participation in the study on the basis of the following: 1. Life expectancy less than 1 year. 2. Pregnancy. 3. Inability to consent. 4. Cutaneous photosensitivity to the wavelengths used to activate PDT. 5. A diagnosis of porphyria. 6. Allergy to aminolevulinic acid or any of the Topical Solution Vehicle components. 7. Previous chemotherapy within 6 weeks of proposed PDT. 8. Other concurrent tumor therapy. -
References
Publications (1)
- DERIVEDQuirk B, Olasz E, Kumar S, Basel D, Whelan H. Photodynamic Therapy for Benign Cutaneous Neurofibromas Using Aminolevulinic Acid Topical Application and 633 nm Red Light Illumination. Photobiomodul Photomed Laser Surg. 2021 Jun;39(6):411-417. doi: 10.1089/photob.2020.4957. Epub 2021 Jan 20. PMID 33470897