Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
Neurofibromatosis is a hereditary neoplastic syndrome characterized by tumor growth within the nervous system. Three main types are typically recognized within this disease category, although additional forms with uncertain etiology have been described. The condition is associated with variants in the NF1 and NF2 genes, which correspond to distinct forms of the disease. Neurofibromatosis type 1 (NF1), the most extensively characterized form per expert review, is described as an extremely variable multisystem disease in which the progression and severity of manifestations can differ substantially over the course of life, even among affected individuals within the same family carrying the same NF1 pathogenic variant. Onset is characterized in this dataset as juvenile. A Finnish register-based population study cited per expert review estimated NF1 prevalence at approximately 1 in 2,052 individuals between ages 0 and 74 years, with the highest prevalence observed in the youngest cohorts and lower prevalence in older cohorts, a pattern attributed to increased mortality associated with the condition. Formal inheritance pattern data were not specified in this dataset, though NF1 and NF2 are established causative genes in well-characterized genetic forms of the disease.
Specific phenotype documentation was not available in this dataset. However, per expert review of the GeneReviews entry for Neurofibromatosis 1, cardinal clinical manifestations include multiple caf-au-lait macules, intertriginous freckling (notably in the axillary or inguinal regions), multiple cutaneous neurofibromas, subcutaneous or deep nodular neurofibromas, plexiform neurofibromas, and characteristic ocular signs. Problems with learning, behavior, and social adaptation are described as unusually common among affected individuals. Optic and non-optic gliomas occur more frequently than expected in the general population, though most such tumors follow a benign course. Individuals with NF1, particularly those with plexiform or deep nodular neurofibromas, may experience additional disease-related complications. Because NF1 is described as extremely variable, the range and severity of manifestations differ widely between affected individuals and across the lifespan of a single individual.
Neurofibromatosis is a hereditary condition linked to pathogenic variants in the NF1 and NF2 genes, which are associated with distinct recognized forms of the disease. The disorder is classified as a neoplastic syndrome, reflecting its underlying predisposition to tumor formation within the nervous system. Formal inheritance pattern information was not specified within this dataset, which represents a noted gap given that NF1 and NF2 are otherwise well-characterized genes in the medical literature. The dataset indicates that three main types of neurofibromatosis are typically recognized, alongside other forms of uncertain etiology, suggesting genetic and mechanistic heterogeneity within the broader disease category.
Per expert review of clinical guidelines for Neurofibromatosis 1, the condition is suspected in individuals presenting with specific combinations of clinical features. Suggestive findings include six or more caf-au-lait macules exceeding 5 mm in greatest diameter in prepubertal individuals or exceeding 15 mm in greatest diameter in postpubertal individuals, freckling in the axillary or inguinal regions, and two or more neurofibromas of any type. Diagnostic evaluation draws on this defined set of clinical criteria rather than a single test, reflecting the multisystem nature of the disease. Additional documented phenotype-based diagnostic criteria were not specified in this dataset beyond these suggestive findings.
No treatments with active FDA marketing status were identified in this dataset for neurofibromatosis. Per expert review of clinical guidelines, there is currently no cure for NF1, though specialist medical or surgical management is described as available for many NF1-associated complications. Targeted therapy with MEK inhibitors is noted as available for NF1-related inoperable plexiform neurofibromas. Management approaches referenced per expert review include monitoring of optic pathway gliomas through brain MRI with involvement of ophthalmology and oncology specialists experienced in NF1, along with chemotherapy considered for progressive disease. Several agents—bevacizumab, Trineumin, and bortezomib—hold orphan drug designations relevant to this disease area; these designations reflect regulatory recognition for rare disease development purposes and do not constitute evidence of FDA-approved status. A substantial clinical trial landscape exists for this disease, comprising 68 certified active trial records spanning Phase 1, Phase 2, and non-applicable phase designations, indicating ongoing investigation into potential therapeutic options.
76 trials found
The prognosis of neurofibromatosis is described as highly variable, with disease progression and severity differing not only between affected individuals but also over time within the same individual, including among family members carrying identical NF1 pathogenic variants. Population-based data cited per expert review show that NF1 prevalence is highest among younger age cohorts and declines in older cohorts, a pattern attributed to increased mortality associated with the condition. Tumor-related manifestations, including optic and non-optic gliomas, are noted to generally follow a benign course in most cases, though individuals with plexiform or deep nodular neurofibromas may face additional disease-related concerns. No disease-specific cure is described in the available material, with management instead centered on addressing individual manifestations as they arise.
An active research landscape is documented for neurofibromatosis, comprising 68 certified active clinical trial records across Phase 1, Phase 2, and non-applicable phase designations. This body of research reflects ongoing investigation into therapeutic strategies for the disease. Additionally, orphan drug designations have been granted for bevacizumab, Trineumin, and bortezomib in connection with this disease area; such designations indicate regulatory recognition supporting rare disease drug development but do not represent FDA-approved treatment status.
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 6:00 AM UTC
Patient Advocacy Groups (PAGs) provide support, resources, and community for patients and caregivers.
Genetic and Rare Diseases Info Center
AI-curated news mentioning neurofibromatosis
Updated Aug 20, 2026
A systematic review highlights management strategies for vestibular schwannomas in patients with neurofibromatosis type 2 (NF2)-related schwannomatosis. This research provides insights into treatment options and outcomes for this rare condition.
A case study highlights the emergence of sporadic sarcoma from a previously resected benign vestibular schwannoma, occurring in a patient without neurofibromatosis or prior radiosurgery. This finding may provide insights into the tumorigenesis of sarcomas in atypical contexts.
A recent study evaluates the prognostic and neurological outcomes after surgical intervention for spinal ependymomas associated with neurofibromatosis type 2 (NF2). The findings contribute to understanding treatment impacts on patient quality of life.