The Potential for Clinical Dependence and Withdrawal Symptoms Associated With Valbenazine
Tardive Dyskinesia (TD)This is a Phase 4, randomized, double-blind, placebo-controlled study to evaluate the potential for clinical dependence and withdrawal symptoms associated with valbenazine.
Pimavanserin Treatment in TS
Tourette SyndromeTardive DyskinesiaThis research study is determining if a drug called Pimavanserin if safe and effective in the treatment of the symptoms of Tourette Syndrome. Pimavanserin is an investigational drug for Tourette Syndrome, which means it has not been approved by the United States Food and Drug Administration (FDA) to treat Tourette Syndrome. Pimavanserin has been approved by the FDA as a treatment for hallucinations in Parkinson's Disease. It is currently marketed under the name NUPLAZID (pimavanserin) capsules by Acadia Pharmaceuticals.
Dysport for the Treatment of OMD
Oral DystoniaTardive DystoniaThe purpose of this study is to study the efficacy and safety of AbobotulinumtoxinA (Dysport) for use in Oromandibular Dystonia (OMD).
Aim to Reduce Movements in Tardive Dyskinesia
Tardive DyskinesiaThe purpose of this study is to determine whether an investigational drug, SD-809 (deutetrabenazine), will reduce the severity of abnormal involuntary movements of tardive dyskinesia.
A Phase 3 Study of NBI-98854 for the Treatment of Tardive Dyskinesia
Tardive DyskinesiaThe purpose of this study is to evaluate the efficacy, safety, and tolerability of NBI-98854 administered once daily for the treatment of Tardive Dyskinesia (TD) symptoms.
Xenazine in Late Dyskinetic Syndrome With Neuroleptics
Tardive DyskinesiaLate dyskinetic syndrome with neuroleptics, or tardive dyskinesia, is the appearance of abnormal involuntary movements (AIM) in patients treated with antipsychotics for at least three months. This important public health issue arises for 15-20% of patients treated with neuroleptics, the most prescribed psychotropic drugs in mental disorders in France, and seriously impacts the patients' quality of life. In over 50% of cases, it is irreversible-that is to say that he will persist despite discontinuation of the offending drug. Risk factors have been described: the age and female gender are established, a higher dosage of antipsychotic, a long-term treatment, a psychiatric condition other than schizophrenia are likely risk factors, intermittent treatment, previous acute dyskinesia, neuroleptics or powerful, longer term use of corrective treatments including anticholinergics are still discussed. Apart from preventive treatment, which consists in using antipsychotics as being coerced, support is disappointing: the etiological treatment, which is to stop the offending antipsychotic, is effective only in less than 50% of cases, the syndrome is most often late irreversible. Must still have the possibility to interrupt the treatment, which is usually impossible in the risk of decompensation of the mental illness for which the neuroleptic was prescribed. Remains symptomatic treatment: functional neurosurgery is only for extreme cases, because it is not without risk, in terms of morbidity and mortality. So it's the medication that is most often offered: many drugs have been proposed, a direct result of the multiplicity of neurotransmitter systems implicated. However, in the vast majority of cases, this approach is disappointing not to say ineffective. The only exception is the tetrabenazine, marketed under the name of Xenazine®. Empirically, neurologists specializing in pathology of the movement are almost unanimous: its efficiency is very good, with good tolerance. Some preliminary studies have reinforced this impression. However, their level of evidence remains low and that is why the investigators propose to implement a prospective multicenter clinical trial, double-blind with placebo which will include two groups of 27 patients.
Tardive Dyskinesia and Cognitive Function
Tardive DyskinesiaNeurocognitive FunctionPrevious researchers indicate that impaired cognitive flexibility was the primary factor distinguishing patients with from those without tardive dyskinesia (TD)1, and cognitive dysfunction correlates positively with the severity of TD2. Longitudinal data raised the possibility that the association between cognitive dysfunction and TD may reflect not organic vulnerability to but rather a state marker for this movement disorder as "tardive dementia"3. Atypical antipsychotic had been reported to alleviate the severity of TD4 and improved neurocognitive function separately5. But no researchers ever investigated the correlation of the two effects simultaneously. This randomized, single-blind and controlled study compared the effect of atypical antipsychotic on TD, neurocognitive function and associated factors for these changes.
A Phase 2 Trial Evaluating SNC-102 in Drug-Induced Tardive Dyskinesia
Drug-induced Tardive DyskinesiaThis Phase 2 study was designed to evaluate the efficacy and safety of SNC-102 in subjects with drug-induced Tardive Dyskinesia (TD). To ensure an adequate evaluation of SNC-102, a randomized, double-blind, parallel-group, placebo-controlled trial was designed. Two dosing levels of SNC-102 are employed to evaluate the proposed dosing range. A target enrollment of 90 subjects with drug-induced TD will provide sufficient data to assess the efficacy and safety profiles of SNC-102 in the target population.
Safety and Efficacy of Propranolol in the Treatment of Tardive Dyskinesia
Tardive DyskinesiaTardive dyskinesia (TD) is a disabling, embarrassing and often irreversible iatrogenic movement disorder that can occur in anyone exposed to drugs that block dopamine receptors, including first and second generation antipsychotics and antiemetic agents. There is no way to prevent TD except preventing exposure to the inciting agents and there are no approved symptomatic therapies. Propranolol is an FDA-approved β-blocker with limited data supporting its use as a treatment for TD. The goal of this study is to determine the efficacy of propranolol in the treatment of TD in a double-blind, cross-over prospective manner. If propranolol is found to be an effective therapy, it will fulfill a great need in the treatment of TD with a medication that is known to be safe and inexpensive.
Levetiracetam in the Treatment of Neuroleptic-induced Tardive Dyskinesia
DyskinesiaMedication-inducedAn 8-week study to examine safety and efficacy of levetiracetam in patients with neuroleptic-induced tardive dyskinesia