Active clinical trials for "Deafness"

The purpose of this study is to investigate the rate of false-positive results in Newborn Universal Hearing Screening Programs and it´s possible causes.

Hearing loss and loss of vision can be very harmful to the well-being and life of people who suffer from them. Usher syndrome is the name of a disease where people have both hearing loss and visual loss. In fact more than half of people who are deaf and blind have Usher syndrome. In this study we are trying to find the causes of all types of Usher syndrome and to learn more about how the eyes and ears work. Usher syndrome is caused by changes in our genes that lead to mistakes in the functioning of our eyes and ears. We may conduct hearing tests called audiograms to test hearing and a vision test called an electroretinogram (ERG) to test how well the retina (the part of your eye that senses light) is working on participants in the study. From these tests we can tell what kind of Usher syndrome a participant may have. We will then get DNA from participants by drawing blood. The DNA will be studied, along with DNA from members of the participant's family and other families, to try to find the gene that is causing Usher syndrome in the participant. Once the gene is found we will be able to study it to learn more about how the eyes and ears work. If a subject has already been diagnosed we may just need copies of their medical records and blood can be drawn locally. In order to increase the power of the study and the likelihood of detecting relevant genes participants will be taken from the Ashkenazi Jewish population group only. This will make it much easier to find the genes.

This is a CUP which is designed to provide treatment access of STS to pediatric patients for the protection from Cisplatin-Induced Hearing Loss in children who had standard-risk hepatoblastoma. Approximately 10 patients will be treated as part of this program as specified below: Sodium Thiosulfate vials i.v. 80 mg/mL. This Compassionate Use Program for STS will consist of 2 phases: Screening: Patients will only be able to participate in this CUP if they meet the eligibility criteria. Treatment: Any clinical assessments, physical examinations, and dosage changes will be determined by the treating physician as per local standard medical practice. All serious adverse events (SAEs) will be reported. All related non-serious adverse events (AEs) will be reported where "related" means any event where a causal relationship between STS and the event is at least, a reasonable possibility. All non-serious AEs leading to dose modification or discontinuation will be reported. Pregnancies, outcomes of pregnancies, and exposure through breastfeeding will also be reported.

To study the positive predictive value of Audiogene v.4.0 open source online machine learning tool in accurately predicting DFNA9 (DeaFNess autosomal dominant ninth) as top 3 gene loci in a large series of genetically confirmed c.151C>T,p.Pro51Ser (p.P51S) variant carriers in COCH (coagulation factor C Homology).

This investigation is a single-centre, prospective, single-arm, post-market, non-interventional, pilot clinical investigation designed to characterize microphone sensitivity and maximum stable gain of the Cochlear Carina System.

A bone anchored hearing system is used to improve hearing for patients with e.g. conductive/mixed hearing loss or single sided deafness. With this type of system, a titanium implant is installed in the temporal bone, where it osseointegrates, i.e. integrates with the bone. An abutment (also in titanium) is attached to the implants and penetrates the skin. The sound processor (hearing aid) is then connected to the abutment, and can be attached and removed by the patient via a snap-coupling. This type of system has been successfully implanted in more than 100.000 patients. Recently, a simplified surgical procedure, where no skin thinning around the abutment is made, was approved. The results after using this installation technique, here called soft tissue preservation, are the focus of this study. The objective of the study is to compare the outcomes after a surgical procedure with soft tissue preservation (test) and a surgery with soft tissue reduction (control) for placing Oticon Medical Ponto implants and abutments. The main hypothesis is that patient numbness around the implant is less in the test group compared to the control group.

The von Hippel Lindau (VHL) gene has recently been identified as the genetic defect resulting in a syndrome of multiple neoplasias. Patients with VHL disease develop retinal angiomata, renal cysts and/or carcinomas, CNS hemangioblastomas as well as pancreatic cysts and pheochromocytomas. Investigators have shown the gene to be a tumor suppressor type proto-oncogene located at chromosomal locus 3p26. The gene includes three exons whose gene product targets a cellular transcription factor Elongin SIII. Binding of the VHL proteins to two subunits of this elongation factor inhibits transcription and may play a crucial role in the clinical development of the von Hippel Lindau phenotype.

This study will examine the hereditary basis of tone deafness by identifying regions of the human genome linked to this condition. Both exceptionally good pitch recognition (perfect pitch) and exceptionally poor pitch recognition (tone deafness) run in families. A better understanding of what causes tone deafness may provide new insights into auditory (hearing) function. Individuals with two or more family members 15 years of age or older who are tone deaf or have trouble recognizing different melodies may be eligible for this study. Candidates will be screened with a short listening test for pitch and a short written test. Those identified with poor pitch recognition will fill out a brief questionnaire about their family tree and family members (without identifying names) who have trouble recognizing melodies or tones. Individuals with poor pitch recognition will be asked to help contact family members who may be interested in participating. Members of families with two or more first-degree relatives (parents, grandparents, siblings) who are tone deaf may enroll in the study. They will provide a blood sample (about 2 tablespoons) for genetic studies and may take a 20-minute hearing test using headphones.

The purpose of this study is to determine if individuals with diabetes are at increased risk of hearing impairment or tinnitus (the perception of ringing or noises in the ears or head). An important goal of this research is also to obtain a better understanding of possible interactions between hearing disorders and other chronic conditions, such as diabetes. Participation in this research will be for a few hours only, to be scheduled at the participant's convenience and according to the testing schedules of the different clinics involved.

The objective of this study is to identify possible preoperative risk factors including genetic background and to suggest the optimal test battery of vestibular function in cochlear implant recipients