View clinical trials related to Neurofibromatosis 1.
Filter by:This study evaluates mirdametinib (PD-0325901) in the treatment of symptomatic inoperable neurofibromatosis type-1 (NF1)-associated plexiform neurofibromas (PNs). All participants will receive mirdametinib (PD-0325901). Eligible participants may continue in a long-term follow-up phase.
This study is being conducted to determine if Whole Body MRI (WBMRI) can be used to identify Atypical Neurofibromas (ANF) in Neurofibromatosis Type 1 (NF1) patients with high tumor burden. Each enrolled participant will have two (2) WBMRIs without sedation during the study period. Eligible participants must be Male or Female between the ages of 8-30 with diagnosed NF1; with one or more PN greater than 3cm in diameter and willing to comply with study procedures.
This trial, Treatment of NF1-related plexiform neurofibroma with trametinib; a single arm,open-label study with the goals of volumetric partial remission and pain relief (EudraCT 2018-001846-32, Sponsor protocol number BUS2018-1, related Novartis reference number CTMT212ASE01T) is a pediatric clinical trial that investigates the potential use of the drug trametinib (Mekinist®) as treatment for symptomatic or likely to become symptomatic NF1-related plexiform neurofibromas (PN) in children between 1 year and 17 year and 11 months of age. Trametinib is orally administered qd at 0.025 mg/kg up to a maximum of 2 mg from six years of age and 0.032mg/kilo up to 5 years of age, provided either as tablets or as oral solution. It is manufactured and distributed by Novartis under the trade name Mekinist®. The primary endpoint is remission of tumor volume ≥20%, evaluated using volumetric MRI at 18 and 30 months of treatment. The secondary endpoint is reversal of pain from NF1-related PN, evaluated monthly with agespecific pain scales; VAS scale (from 8 years) or Faces Pain Scale (from 3 to 8 years). As an exploratory measure, the potential effects of the treatment on the cognitive function will be assessed using well-established tests such as WISC-V (age range 6:0 - 16:11), NEPSY-II (age range 3:0-16:11), and CPT-3 (age range 8:0 - adult). Cognitive dysfunction is well described in patients with NF1, and the MAPK/ERK-pathway has been indicated to be involved in cognition.
This is a phase II open label study that will evaluate children ≥ 1 year of age and adults with neurofibromatosis type 1 (NF1) and plexiform neurofibromas treated with the MEK inhibitor, binimetinib. The primary objective is to determine if there is an adequate level of disease responsiveness to binimetinib in children and adults with NF1 and inoperable plexiform neurofibromas. The objective response to binimetinib is defined as ≥ 20% decrease in tumor volume reduction by 12 courses.
This phase II trial studies how well trametinib works in treating patients with juvenile myelomonocytic leukemia that has come back (relapsed) or does not respond to treatment (refractory). Trametinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
Background: Neurofibromatosis type 1 (NF1) is a disorder that can cause plexiform neurofibromas (PNs). These are tumors that grow along nerves. Some PNs cause serious health problems. PNs often can t be operated on because of their large size, location, or number. There are no effective treatments known for people with NF1 and PNs. Researchers want to test if the drug selumetinib (AZD6244 hydrogen sulfate) causes PNs to shrink or slows down their growth. Objectives: To test if selumetinib helps treat PNs. To test how the body handles selumetinib and how it affects peoples symptoms. Eligibility: People ages 18 and older with NF1, with an inoperable PN that causes morbidity or is growing Design: Participants will be screened with: Medical history and physical exam Blood, urine, and heart tests Eye exam MRI: They lie in a machine that takes pictures of the body. PN biopsy: A small piece of the tumor is removed by a large needle. Questionnaires Participants will swallow selumetinib capsules every 12 hours for several 28-day cycles. The capsules are taken with a full glass of water on an empty stomach. Participants may have only water for 2 hours before and 1 hour after each dose. Participants will keep a drug diary. They will continue taking the drug as long as they tolerate it and their disease doesn t progress. Participants will have several visits throughout the study. These will include repeats of the screening tests. Participants will have a final visit after they stop taking selumetinib.
Thanks to the investigators previous study the investigators demonstrated the influence of modifying genes in the phenotypic expression of neurofibromatosis 1 (Hum Mol Genet. 2009; 18 (15) :2768-78). Indeed, analysis of the intra-and inter-family variability performed using the investigators phenotype/genotype database demonstrated a strong genetic component for most clinical features. The investigators results suggest the involvement of genetic factors, not related to the NF1 gene, the modifiers. The objective of this project is to identify the modifiers involved in the variability of clinical expression of NF1. The investigators will focus in particular variants involved in the development and progression of neurofibromas.
Background: - Plexiform neurofibromas are tumors that grow in and around nerves. The only way to treat them is with surgery. Some of these tumors cannot be completely removed. The tumors may be too large, too numerous, or in a bad location for surgery. An experimental drug called AZD6244 hydrogen sulfate may be able to prevent the tumors from growing, slow down their growth, or shrink them. This drug has been tested in adults with cancer and in children with some types of brain cancer. This study will test how well this drug works with these types of tumors. Objectives: - To study the safety and effectiveness of AZD6244 hydrogen sulfate in children and young adults with plexiform neurofibromas that cannot be completely removed by surgery. Eligibility: - Children and young adults between 12 and 18 years of age who have plexiform neurofibromas that cannot be completely removed by surgery. Design: - Patients will be screened with a physical exam, medical history, blood tests, and imaging studies. - They will take the study drug twice a day with 8 ounces of water, every day for 28-day cycles of treatment. During study visits, participants will have blood and urine tests and physical exams. They will also have imaging studies to examine the tumor sizes and locations. They will answer questions about their health. They may have other tests as needed. - Participants will continue to receive the study drug as long as they have no severe side effects and the disease is not getting worse.
Neurofibromatosis type 1 (NF1) is a frequent autosomal dominant disorder, caused by heterozygous mutations of the NF1 tumor suppressor gene (chr.17q11.2). One of the main clinical features is the development of benign and malignant tumors. The most common benign tumors in these patients are tumors of the peripheral nerve, named neurofibromas. Every NF1 patient has a life time risk of 8-13% to develop a malignant peripheral nerve sheath tumor (MPNST) starting from a pre-existing neurofibroma. MPNSTs lead to a bad prognosis for the patient, with an overall five-year survival of less than 25%. Complete resection is the standard treatment, but this is often difficult due to the size of the tumors and the location on important nerves, moreover the tumor is frequently metastatic at the time of diagnosis. For MPNSTs, like for other cancers, the extent and the spread of the disease at time of diagnosis is an important factor in determining treatment outcome. In this regard, the analysis of tumor derived cell-free circulating DNA in plasma of NF1 patients would open up the possibility to diagnose and monitor the development and progression of MPNSTs using a small blood sample. In cooperation with P. Schöffski (UZLeuven), we plan to collect blood samples from cancer patients to optimize the DNA extraction procedure starting from plasma samples. It is known that patients with cancer have a higher amount of free circulating DNA in plasma than individuals without cancer and therefore we want to optimize the DNA extraction procedure on plasma from patients with cancer. In the meantime, matching MPNST and plasma samples from NF1 patients will be collected and sent to us from the University of Eppendorf (Victor Mautner) to optimize the array CGH protocol for the detection of copy number changes in plasma DNA of NF1 patients with MPNSTs.
Neurofibromatosis type 1 (NF1) is a frequent, autosomal dominant disorder caused by heterozygous mutations (intragenic or microdeletion) of the NF1 tumor suppressor gene (chr.17q11.2). One of the clinical features is the development of benign and malignant tumors. The most common benign tumors in these patients are tumors of the peripheral nerve sheath, named neurofibromas (cutaneous, subcutaneous and plexiform). Every NF1 patient has a life time risk of 8 to 13% of developing a malignant peripheral nerve sheath tumor (MPNST) out of a pre-existing neurofibroma. In patients with a NF1 microdeletion (5% of NF1 patients), this risk is even twice as high compared to patients with an intragenic mutation. MPNSTs lead to a bad prognosis for the patient, with an overall five-year survival of less than 25%. To know more about the development and progression of these tumors, they will be screened by microarray comparative genome hybridization (Leuven) and full exome sequencing (Leuven). Further experiments will be done in cooperation (bidirectional) with the foreign labs of Victor Mautner (Germany), André Bernards (USA), Karen Cichowski (USA) and Yuan Zhu (USA). For all these experiments, we will make use of tumoral rest material removed from NF1 patients.