Dimebon (PF-01913539)-Digoxin Drug-Drug Interaction Study In Healthy Subjects
Alzheimer DiseaseHuntington DiseaseThis study has been designed to confirm, in healthy subjects, the lack of a clinically important pharmacokinetic interaction between Dimebon, at the proposed maximum commercial dose of 20 mg TID (administered every 8 hours), and digoxin (Lanoxin®) 0.125 mg QD, a sensitive P-gp substrate recommended by FDA.
Effects of Lithium and Divalproex'on Brain-Derived Neurotrophic Factor in Huntington's Disease
Huntington's DiseaseThis study will examine whether lithium carbonate, given alone or with divalproex, increases the amount of brain-derived neurotrophic factor (BDNF) in the spinal fluid of patients with Huntington's disease (HD), a hereditary disorder of the central nervous system. Patients with this fatal degenerative disease have lower amounts of substances in the brain and spinal fluid called trophic or growth factors. One of these factors is BDNF. A possible treatment for HD may be to increase the levels of BDNF. Lithium carbonate, a drug used to treat bipolar disorder, and divalproex, a drug used to treat mood disorders and seizure disorders, have both been shown to increase the amount of BDNF protein in laboratory studies. Patients 18 to 70 years old with a DNA-confirmed diagnosis of Huntington's disease may be eligible for this study. Candidates are screened with a medical history and physical examination, neurological evaluation, blood and urine tests, and electrocardiogram (EKG). Participants take lithium carbonate with and without divalproex. They also receive placebo (an inactive substance) for portions of the study. On the first day of the study, patients are given a supply of pills with instructions on how to take them. Blood pressure and pulse are measured, and blood and urine tests may be done. Patients are evaluated with standardized tests and scales for assessment of various aspects of HD. Patients return to the clinic once a week for follow-up evaluations, including blood and urine tests, physical examinations, disease assessments, and a review of medication side effects. Each week, they receive a new supply of medications and instructions on how to take them. At the end of the sixth week, they finish taking the medications. During the study, patients undergo three lumbar punctures (spinal taps) - at weeks 2, 4, and 6 - to measure BDNF and various other brain chemicals. For this test, a local anesthetic is given and a needle is inserted in the space between the bones in the lower back where the CSF circulates below the spinal cord. A small amount of fluid is collected through the needle. The procedure generally takes from 5 to 20 minutes. Patients return to the clinic 2 weeks after completing the study medication for a final evaluation, including a physical examination and blood and urine tests.
MIG-HD: Multicentric Intracerebral Grafting in Huntington's Disease
Huntington DiseaseThe aim of this study is to assess the clinical benefit of intrastriatal grafting of human cells from the foetal ganglionic eminence in patients with Huntington's disease. The duration of the study will be 52 months. A first group of patients will be grafted at M13-14 (early G group) and a second group of patients will be grafted at M33-34 (late G group). The principal criterion is the comparison of the progression between M12 and M32 of the motor score (TMS) of the UHDRS between grafted patients (early G group) and not yet grafted patients (late G group). An additional evaluation will be performed to compare the progression in individual patients over the 52-month study period. We will thus be able to compare the pre and post-graft TMS progression for all patients.
Gait Analysis in Neurological Disease
Parkinson's DiseaseParkinsonian Disorders7 moreThe purpose of this study is to investigate whether speed-dependent measures of gait can be identified in patients with neurological conditions that affect gait, particularly in subjects with parkinsonian disorders.
Resveratrol and Huntington Disease
Huntington DiseaseThe purpose of this study is to evaluate the therapeutic potential of Resveratrol on the caudate volume in HD patients, using volumetric MRI.
Healthy Volunteer Positron Emission Tomography (PET) Brain Occupancy Study of a Phosphodiesterase...
Huntington DiseaseThis study will investigate if a new experimental drug to treat Huntington's Disease gets into the brain. If it does get into the brain the study will explore the relationship between the amount of drug in the brain and the amount of drug in the blood. The study will involve healthy male volunteers.
NIPD on cffDNA for Triplet Repeat Diseases
Myotonic Dystrophy 1Huntington Disease1 moreThe purprose of this study is to develop and validate an analytical NIPD test for triplet repeat disesases by NGS analysis from maternal blood, searching for the familial mutation in families at risk of having one of the following triplet repeat diseases: Huntington's disease, Myotonic dystrophy, Fragile X syndrome.. A comparison of two 3rd generation long fragment DNA sequencing techniques will be performed. These methods are based of the phasing techniques of parental haplotypes without the proband.
Biological Sample Collection for Research and Biobanking
Parkinson DiseaseDiabetes Mellitus6 moreThe New York Stem Cell Foundation (NYSCF) Research Institute is performing this research to study different conditions and diseases by using cells from the body (such as skin or blood cells). NYSCF uses these samples to make stem cells and other types of cells, conduct research on the samples, perform genetic testing, and/or store these samples for future use. Through this research, scientists hope to identify future treatments or even cures.
iMagemHTT: FIH Evaluation of Novel Mutant Huntingtin PET Radioligands [¹¹C]CHDI-00485180-R and [¹¹C]CHDI-00485626...
Huntington DiseaseThis is a FIH (first-in-human) adaptive PET (Positron Emission Tomography) imaging study to explore the binding and kinetic properties of two potential mutant huntingtin (mHTT) radioligands; [¹¹C]CHDI-00485180-R and [¹¹C]CHDI-00485626. The binding characteristics of these radioligands will be evaluated first in young (< 35 years of age) healthy control (HC) participants (Phase 1a) and subsequently in young HCs and Huntington's disease gene-expansion carriers (HDGECs) with Stage II HD (Phase 1b). Subsequent phases will continue to explore the radioligands' binding characteristics in HDGECs with Stage II HD (Phase 2a), Stage I HD (Phase 2b) and pre-manifest HDGECs (Phase 2c) and their age matched healthy controls. All phases are cross-sectional and will include comparisons between HCs and HDGECs. Test-retest (TRT) evaluations will be done during Phase 2a, with the option of including further test-retests in Phases 2b, and 2c after review of data by the iMagemHTT Executive Committee. TRT is only applicable to HDGEC participants. There are four planned interim analyses at which either radioligand may be dropped if its characteristics are shown to be suboptimal. If successful, the study will establish [¹¹C]CHDI-00485180-R and/or [¹¹C]CHDI-00485626 as fit for further development as drug development tools to measure mHTT levels in HDGECs. This development is intended to demonstrate the value of PET imaging with these radioligands as a disease progression biomarker, predictive biomarker, pharmacodynamic biomarker, and eventually as an efficacy biomarker. All HDGEC participants will be invited to provide an optional cerebrospinal fluid (CSF) sample that will be collected after the imaging visits are complete. These samples will be processed to evaluate CSF mHTT levels and other potential biomarkers and to explore potential relationships between soluble CSF mHTT levels and mHTT binding identified by [¹¹C]CHDI-00485180-R and/or [¹¹C]CHDI-00485626 PET imaging. Potential CSF biomarkers that might be co-expressed or accumulated in HD may also be examined.
Safety and Tolerability Study With VY-HTT01, in Adults With Early Manifesting Huntington's Disease...
Huntington DiseaseThis is the first clinical study of VY-HTT01, a gene therapy for early-stage Huntington's Disease (HD) patients. The primary goal of this trial is to evaluate the safety and tolerability of VY-HTT01. This study is a first in human study, Phase 1b, open-label, randomized, multicenter, dose escalation study with a delayed treatment control arm.