Assessing the Efficacy of Repeat, Monthly Treatments of Alexandrite Laser for NF1-associated Cutaneous Neurofibromas (cNFs)

The goal of this clinical trial is to evaluate the tolerability and effectiveness of multiple treatments of Alexandrite (755 nm) Laser in those with Neurofibromatosis Type 1 (NF1) Cutaneous Neurofibromas (cNFs). The main questions it aims to answer are: Will performing up to 6 months of treatment sessions with alexandrite laser will result in tolerable local skin reactions and reduction in both individual cNF size by \>50% as well as improved cNF appearance in the treated field? If there is a comparison group: Researchers will compare laser treatment with cooling to both laser treatment without cooling and an untreated control see if laser treatments are effective and if cooling makes treatment more tolerable. Participants will: * Receive up to 6 monthly laser treatments. * Complete surveys asking about pain during and after treatments. * Complete surveys asking about satisfaction with the treatments. * Undergo 2D photography and 3D imaging of treatment areas. * Optionally, receive biopsies of up to 6 treated lesions to investigate characteristics of tumors that respond well to treatment as well as non-respondent tumors.

NCT Number	NCT06934928
Lead Sponsor	Massachusetts General Hospital Collaborators: Johns Hopkins University
Conditions	Neurofibromatosis 1 (NF1), Neurofibromatosis Type I
Enrollment	10 participants
Start Date	2027-01
Primary Completion	2027-12 (estimated)
Study Completion	2027-12 (estimated)
Updated on ClinicalTrials.gov	2026-06-04