View clinical trials related to Vestibular Schwannoma.
Filter by:The purpose of this study is to compare the outcome of patients with vestibular schwannomas in two groups of randomised to either radiosurgery or expectation. The optimal treatment for a small vestibular schwannoma is a matter of controversy and there are no class 1 studies investigating this. Even the natural tumor growth rate remains controversial and is reported to be from near 100% of cases showing growth to 40-60% in various reports. The clinical results of various treatment strategies are documented, but comparative studies are very few. Immediate radiosurgery or wait-and scan with subsequent treatment upon growth are two strategies that have both been used in many different centers. There are only two studies comparing these treatment modalities .These studies indicate significant effect of GKRS in reducing tumor growth, with less differences in hearing and complaint outcomes. None of the studies are blinded or randomised, allowing for bias. The present study aims at comparing the two modalities above. To achieve this, we intend to randomise patients with newly diagnosed VS to either of Wait-and Scan or immediate radiosurgery. The primary study endpoint is the relative tumor size measured as the ratio between tumor volume at four years compared with volume at inclusion. Secondary endpoints include symptom and sign development measured by clinical examination and by patient's responses to standardised validated questionnaires. In addition, the health economics involved with both strategies will be evaluated and compared, as well as the patient's working status. Patients will be asked to participate if their VS is diagnosed within the last six months, their age is between 18 and 70, and pending there are no exclusion criteria (see below). A power analysis indicates that about 50 patients per group is sufficient. In case of failure to recruit patients, we will change the design to a study based on patient's own choice of treatment. The study will be announced according to international guidelines. A steering committee will monitor the study and an intermediate analysis will be performed when the study group has been followed for two years. If the effect aim is already observed, the study should nonetheless continue, as it is too early to evaluate the results after such a short time course. It will also be discussed to do a follow-up of all patients ten years after inclusion.
1)Preliminarily evaluate the treatment effect of continuous vein injection of recombinant human endostatin on NF2; 2)Preliminarily evaluate the safety and the patient's tolerance of the treatment of endostatin; 3)Provide an objective basis for an enlarged randomized double-blind trial.
The effect of Gamma knife radiosurgery (GKRS) on hearing loss, in patients with vestibular schwannoma (VS) and preserved hearing is still unclear. Retrospective data indicate that the hearing is preserved in most patient years after the gamma knife treatment. Recent prospective data suggests that radiosurgery could be a hearing preserving treatment for these patients. The main objective of this study is to evaluate if GKRS can inhibit progression of hearing loss in patients with VS. Patients with preserved hearing will be offered to participate in the study and randomized ether to GKRS or initial conservative treatment for their vestibular schwannoma. They will then be followed with scheduled magnetic resonance image(MRI) and audiometry and evaluated after one, three and five years after treatment.
People who have neurofibromatosis type 2 (NF2) can have tumors that grow on the auditory nerves and cause hearing loss. These tumors are called vestibular schwannomas (VSs), or acoustic neuromas. People with NF2 can also get schwannomas in other parts of their body, as well as tumors called meningiomas and ependymomas. Because VSs can cause hearing loss, many people with NF2 will have treatment to preserve their hearing. This treatment usually involves surgery. Because surgery has risks and is not able to help everyone with VSs, other methods of treatment are being explored. One area of exploration is looking to see if there is a drug that can be taken that might prevent the VSs from growing larger and causing hearing loss or brainstem compression. This study is exploring whether a drug that is approved by the FDA and is currently used to treat other tumors might also work to treat VSs. Based on people who have taken this drug to treat VSs already, there is some reason to think that it might be helpful to certain people with NF2. People enrolled in this study will receive the drug one time every three weeks for one year by infusion. This study will follow subjects over the course of the year that the person is taking the drug and for six months after the drug is stopped. This study is recruiting people who have NF2 and are currently having symptoms of tinnitus, dizziness, and/or hearing loss from their VSs. If you have NF2 and are currently having symptoms caused by your VSs, you may be eligible to participate.
Tumors can grow on the auditory nerves and can cause hearing loss. A common type of tumor that does this is a vestibular schwannoma (VS), or acoustic neuroma. These tumors are not cancerous. Most often, people have only one VS. Occasionally, people have more than one VS and may have a condition called neurofibromatosis type 2 (NF2). Because VS can cause hearing loss, many people with VS will have treatment to preserve their hearing. This treatment usually involves surgery or radiation therapy. There are risks to these procedures, and sometimes they do not work to prevent hearing loss. Because surgery and radiation have risks and are not able to help everyone with VS, other methods of treatment are being explored. One area of exploration is looking to see if there is a drug that can be taken that might prevent the VS from growing larger and causing hearing loss, and might possibly even cause the VS to shrink in size. This study is exploring whether a drug that is approved by the FDA and is currently used to treat breast cancer might also work to treat VS. This study will measure the amount of drug that travels from the bloodstream and arrives at the tumor. This drug is safe and has few side effects. If this drug is shown to reach the tumor, it might be used in the future to treat VS without needing surgery or radiation. This study is recruiting people who are having surgery for VS. If you are going to have surgery to treat a VS, you may be eligible to participate.
The purpose of this study is to determine whether exercises relieve the symptoms of dizziness and imbalance in people with vestibular deficits and improves the ability to see clearly during head movements. We hypothesize that the performance of specific adaptation and substitution exercises will result in an improvement in visual acuity during head movements while those patients performing placebo exercises will show no improvement.