Kurgan

This observational study focuses on adult patients diagnosed with neurofibromatosis type 1 NF1 in Russia. It aims to evaluate clinical characteristics and patient-reported outcomes in routine care settings to better understand the disease manifestations, associated symptoms, and complications in this population. The study is non-interventional and involves collecting data during regular healthcare visits without altering patient treatment. Participants are adults aged 18 years or older with a confirmed diagnosis of NF1 and plexiform neurofibromas PN identified by clinical assessment or imaging methods such as MRI or ultrasound. Patients must have PN-associated symptoms and be either newly diagnosed or nave to MEK-inhibitor therapy. The study does not involve experimental treatments but follows patients receiving standard care to gather clinical and demographic information. During the study, participants undergo evaluations at routine visits where data such as age at NF1 diagnosis, body measurements, symptoms, complications, and disability degree are collected. Imaging results, hospitalizations related to NF1, and medical histories are reviewed. Researchers monitor changes in disability and symptom persistence over time. The study includes assessments of PN volume by MRI and various patient characteristics to understand disease impact and progression. Participation duration aligns with routine care without additional interventions.