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An Orthotopic Sciatic Nerve Xenograft for Neurofibromatosis Type 1 Neurofibromas
Published on: October 10, 2025
Phase II trial of pirfenidone in adults with neurofibromatosis type 1
D Babovic-Vuksanovic1, K Ballman, V Michels
1Department of Medical Genetics, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA. dbabovic@mayo.edu
Abstract:
We performed an open-label phase II trial of oral pirfenidone in 24 patients with neurofibromatosis type 1 (NF1). Tumors were monitored by three-dimensional MRI. At the end of treatment, four patients had a decrease in tumor volume by 15% or more, three had tumor progression, and 17 remained stable. Pirfenidone warrants further investigation in NF1, which has until now lacked an effective control therapy.
Insights
Pirfenidone showed potential in a phase II trial for neurofibromatosis type 1 (NF1) patients. While some saw tumor volume decrease, further investigation is needed for this condition lacking effective therapies.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Neurofibromatosis type 1 (NF1) is a genetic disorder.
- NF1 is associated with tumor development.
- Effective therapies for NF1 are limited.
Purpose of the Study:
- To evaluate the efficacy of oral pirfenidone in patients with NF1.
- To assess tumor volume changes in NF1 patients treated with pirfenidone.
Main Methods:
- An open-label phase II clinical trial was conducted.
- Twenty-four patients with NF1 were enrolled.
- Tumor volume was monitored using three-dimensional MRI.
Main Results:
- Four out of 24 patients experienced a tumor volume decrease of 15% or more.
- Three patients showed tumor progression.
- Seventeen patients had stable tumor volume.
Conclusions:
- Pirfenidone demonstrates potential as a therapeutic option for NF1.
- Further research is warranted to explore pirfenidone's role in NF1 management.
- Pirfenidone may address the unmet need for effective NF1 therapies.
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