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Showing 1-20 of 62 trials
NCT03029429
Pseudohypoparathyroidism is a genetic disorder with limited treatment options. Patients have early-onset obesity, short stature and increased risk of type 2 diabetes. This phase 2 clinical trial will test the efficacy of theophylline, a phosphodiesterase inhibitor, in pseudohypoparathyroidism. The investigators hypothesize that theophylline will cause weight loss, improve glucose tolerance and slow growth plate closure in children and young adults.
NCT06672237
This study will be conducted to evaluate the efficacy and safety of a single dose of nexiguran ziclumeran (NTLA-2001) compared to placebo in participants with ATTRv-PN.
NCT03295071
This study is a multi-country retrospective and cross-sectional observational study of affected LHON subjects, based on retrospective subjects' medical chart abstractions and cross-sectional administration of patient-reported outcomes (PROs).
NCT02652767
The goal of this clinical trial is to assess the effectiveness of GS010, a gene therapy, in improving the visual outcome in participants with Leber Hereditary Optic Neuropathy (LHON) due to the G11778A ND4 mitochondrial mutation when vision loss is present for six months or less.
NCT02652780
The goal of this clinical trial is to assess the effectiveness of GS010, a gene therapy, in improving the visual outcome in participants with Leber Hereditary Optic Neuropathy (LHON) due to the G11778A ND4 mitochondrial mutation when vision loss is present for more than six months and up to one year.
NCT07303296
The goal of this Clinical trial is to assess the safety and efficacy of GS010 at two dose levels on visual acuity and retinal mitochondrial activity in patients affected with ND4 Leber Hereditary Optic Neuropathy (LHON)
NCT04240821
Pseudohypoparathyroidism is a genetic disorder with limited treatment options, characterized by early-onset obesity, short stature, hormone resistance and cognitive impairment. This phase 2 clinical trial will test the efficacy of theophylline, a phosphodiesterase inhibitor, in pseudohypoparathyroidism. We hypothesize that theophylline will cause weight loss, improve glucose tolerance and decrease hormone resistance in children and young adults.
NCT07408583
The investigators aim to evaluate the safety and efficacy of in utero hematopoietic stem cell transplantation (IUHSCT) for the treatment of fetuses diagnosed with Fanconi anemia (FA) during pregnancy.
NCT05079334
Investigators from Vanderbilt University Medical Center (VUMC), Duke University, and Meharry Medical College (MMC) are collaborating on a family health history study to deploy a family health history (FHH) platform, MeTree. Recruited participants will complete surveys, the MeTree questionnaire, and MeTree will determine the participant's cancer risk based on current guidelines. The study team will offer genetic counseling to high-risk participants. Investigators will track participant outcomes and behaviors from the use of MeTree to determine the efficiency of the use of MeTree compared to completion of pedigrees in clinic.
NCT04158648
This is a multicenter, open-label, single-arm study designed to evaluate the safety, efficacy, pharmacokinetics, and pharmacodynamics of emicizumab in participants with mild or moderate hemophilia A without inhibitors against factor VIII (FVIII).
NCT06573723
The goal of this observational study is to create a single macro registry system with data collection on common clinical features, grouping the different rare diseases (RD). Moreover, the specific goals are to generate an alert system for possible cases of RD with data from the electronic medical record, to describe the occurrence of RD in the evaluated population, to characterize the population, to describe patterns of diagnosis and treatment of RD present at the time, and to explore patient-reported outcomes.
NCT07336966
All patients with Wolfram syndrome and recessive optic atrophy due to a mutation of the WFS1 from a single Center were included in a retrospective study. Evolution of the visual acuity since the occurrence of the optic atrophy and its last value, OCT data, genetic data and systemic manifestations were analyzed.
NCT07258667
Leber Hereditary Optic Neuropathy (LHON) is a rare genetic disease that causes sudden and severe vision loss, usually in young adults. It is linked to mutations in mitochondrial DNA that impair energy production in retinal ganglion cells, leading to degeneration of the optic nerve. Currently, treatment options are very limited and often ineffective. Recent research has shown that patients with LHON have lower levels of nicotinamide (vitamin B3), a key molecule for mitochondrial energy metabolism. Nicotinamide is a precursor of NAD, an essential cofactor for cellular energy production. Experimental studies and clinical trials in related optic nerve diseases suggest that nicotinamide may protect retinal ganglion cells. Our hypothesis is that supplementation with high-dose nicotinamide could restore NAD levels, support mitochondrial activity, and help preserve or improve vision in LHON. This pilot study will evaluate the effectiveness and safety of oral nicotinamide (2 grams per day for 12 months) in patients who developed LHON within the past 18 months and carry one of the two most severe mutations (m.11778G\>A or m.3460G\>A). The main goal is to measure changes in visual acuity over time using standardized eye charts. Secondary objectives include assessing visual fields, retinal structure by optical coherence tomography (OCT), blood nicotinamide levels, and quality of life. Liver function will be monitored to ensure safety. If this study shows promising results, it could pave the way for a larger randomized trial and ultimately offer a new therapeutic option.
NCT03762590
The goal of the GENERATE Study is to improve genetic testing and cancer prevention in family members of pancreatic cancer patients who may have genetic mutations (inherited changes). The study will measure how different methods of genetic education increase the rate of genetic testing in these families. This is an investigational study to measure the effects of two methods of genetic education. Participants may elect to undergo genetic testing as part of the study and will be asked to provide a saliva sample via a saliva-testing kit. The genetic testing done in this study is FDA approved and will be processed in a Clinical Laboratory Improvement Amendments (CLIA) certified laboratory. Up to 1,000 participants will be enrolled in this study.
NCT04108052
Hereditary hemorrhagic telangiectasia (HHT) is linked to a dysregulation of angiogenesis leading to the formation of arteriovenous malformations (AVM): cutaneo-mucous telangiectasia and visceral shunts. The diagnosis is clinical and based on Curaçao criteria: recurrent epistaxis, cutaneo-mucous telangiectasia, hereditary signs and presence of visceral AVM. Pulmonary AVMs (PAVM) expose patients to many potentially life-threatening complications, such as strokes or brain abscesses due to the right-left shunt created and the lack of filtration barrier of the pulmonary capillary within the AVM. These patients should therefore have regular monitoring throughout their life by a chest CT scanner every 5 to 10 years in the absence of PAVM at the initial scan or more often if PAVMs are present. The management of PAVMs is based on their early detection and embolization in interventional radiology during which is set up within the afferent artery of the PAVM an embolizing agent, the coil. However, the risk of cumulative irradiation exposure from thoracic scanners and repeated thoracic embolizations over time could be reduces by a decrease of X-rays dose. A new thoracic CT imaging protocol validated in the United States in the primary screening of lung cancer, the ultra-low dose protocol, is a CT scanner acquired at an irradiation dose equivalent to that of a frontal chest x-ray and in profile. The dose reduction is of 40 times the usual dose of a chest CT scanner. The lung parenchyma has a high natural contrast on thoracic CT images and there are few adjacent attenuating structures allowing a drastic reduction of dose. However, from this dose, the image quality is degraded with an increase of the image noise. The diagnostic performances have to be confirmed with qualitative and quantitative measurements. Thus, the objective of this study is to compare the sensitivity and the specificity of the current scanner and the ultra-low dose scanner to reduce the exposure to X-rays.
NCT03293524
The goal of this clinical trial is to assess the safety and efficacy of GS010, a gene therapy, in improving the retina functional \& structural outcomes in subjects with LHON due to the G11778A ND4 mitochondrial mutation when vision loss duration is present up to one year.
NCT02484716
Timolol is a nonselective β-blocker commonly used in the treatment of glaucoma. Recently it has been used topically for the treatment of superficial hemangiomas. Because of its potential mechanism of action, it is possible that timolol could also be useful for the treatment of epistaxis in Hereditary Hemorrhagic Telangiectasia (HHT). Moreover a case was reported in 2012 showing an improvement of nosebleeds with the use of topical nasal timolol. The aim of the study is to evaluate timolol nasal spray efficacy in HHT. The main objective of this trial is to evaluate, 3 months after the end of the treatment, the efficacy on the duration of nosebleeds of a 4 weeks timolol intranasal treatment in HHT patients with nosebleeds (\>20 min/month). Secondary objectives are to evaluate the tolerance, the efficacy at 6 months after the end of the treatment, and the efficacy on anemia and on clinical parameters (nosebleeds, quality of life and blood transfusions). This is a prospective double blind phase II study, randomized versus placebo using an allocation ratio of 1:1. A total of 58 patients will be included. The product (solution with timolol at 0.5% or placebo) is self-administered by the patient with a posology of one spray (50 µL) in each nostril twice a day for 28 consecutive days.
NCT02886247
The NFPTR was established in 1994 to find the causes of pancreatic cancer. In brief, the investigators are interested in both the genetic and non-genetic causes of pancreatic cancer. The investigators are particularly interested in finding the genes that cause pancreatic cancer to cluster in some families. Up to 10% of pancreatic cancer patients have another close relative who has also developed pancreatic cancer. This clustering of pancreatic cancers in families has yet to be explained; however, the investigators continue to identify new familial pancreatic cancer genes that explain this clustering in subsets of families. For example, in 2009 and 2012 the investigators discovered that mutations in the PALB2 and ATM genes jointly account up to 5% of the clustering of pancreatic cancer in families.
NCT07075887
OCT-A and eco-colordoppler are technologies which enable optic nerve head (ONH) blood perfusion detection. The aim of the study is to assess ONH vascular and structural components in optic neuropathies with and without ONH edema or pseudo-edema with OCT-A, and analyze ONH blood-flow with eco-colordoppler.
NCT06534424
This clinical trial evaluates the impact of enhanced risk assessments on knowledge, perceptions, and decisional conflict about cancer prevention in women with a BRCA1 or BRCA2 mutation. BRCA1/2 mutation carriers have a much higher risk of developing breast and ovarian cancer. Due to the high risk of cancer, mutation carriers are provided guidelines on more intensive screening and preventative surgeries such as bilateral mastectomy and bilateral salpingo-oophorectomy. Doctors want to learn if a more personalized risk assessment impacts the patients' risk perceptions and comfort with decision-making around cancer prevention behaviors.