View clinical trials related to Parkinson Disease.
Filter by:In this study, the investigators aim to evaluate the clinical efficacy and cost-effectiveness of MARS-PD. Conventional, usual care will be used as the comparator because this trial aims to assess the add-on effect of MARS-PD. The investigators hypothesize that the complex therapy will relieve motor and nonmotor symptoms, improve gait performance, and enhance neuroplasticity in PD patients, and will be safe and cost-effective.
Constipation is a common and debilitating non-motor symptom of Parkinson disease (PD) that often precedes the onset of classic motor symptoms by decades. There is no standardized algorithm for managing constipation in this patient population, nor are there dedicated treatments. Studies suggest that constipation can affect quality of life to a significant degree, in many cases just as much as motor symptoms. There is an unmet need for effective treatment options for constipation in this patient population. The goal of this study is to determine the efficacy and safety of pyridostigmine as a treatment for chronic constipation in patients with PD.
The primary objective of this study is to determine whether treatment with pimavanserin or quetiapine is associated with a greater improvement in psychosis when used in a routine clinical setting to treat hallucinations and/or delusions due to Parkinson's disease (PD) or dementia with Lewy bodies (DLB) - collectively referred to as Lewy body disease (LBD).
N-DOSE is a double-blinded placebo-controlled randomized trial aiming to determine the optimal biological dose (OBD) of nicotinamide riboside (NR), in individuals with Parkinson's disease (PD). The investigators recently reported the NADPARK study (ClinicalTrials.gov: NCT03816020), a phase I randomized, double-blinded trial, assessing the tolerability, cerebral bioavailability and molecular effects of NR therapy, 1000mg daily, in PD. The NADPARK study showed that NR 1000mg daily was well tolerated and led to a significant, but variable, increase in cerebral NAD (nicotinamide adenine dinucleotide) levels (measured by 31phosphorous magnetic resonance spectroscopy, 31P-MRS) and related metabolites in the cerebrospinal fluid (CSF). NR recipients showing increased brain NAD levels exhibited altered cerebral metabolism, measured by 18fluoro-deoxyglucose positron emission tomography (FDG-PET), and this was associated with mild clinical improvement. The results of the NADPARK trial nominate NR as a potential neuroprotective therapy for PD, warranting further investigation in larger trials. The investigators recently conducted the NR-SAFE safety trial comparing 3000mg NR to placebo in 20 participants with PD over 4 weeks (NCT: NCT05344404) which showed no moderate or severe adverse events, and no signs of acute toxicity. Due to the variability in response to NR in the NADPARK trial, the N-DOSE study will investigate the response to escalating doses of NR from 1000mg to 3000mg over 12 weeks, in order to ascertain the optimal biological dose of NR in PD.
More than 1 million people in Europe suffer from Parkinson's disease (PD), a brain disorder manifesting with a motor syndrome and several non-motor features. Neuropsychiatric symptoms, like anxiety and depression, are common in patients with PD, and has profound effects on quality of life and activities of daily living of the patient, and caregiver burden. Cognitive behavioral therapy (CBT) has proven efficient for depressive symptoms, but treatment availability to the general patient with PD is low. Thus, there is an urgent need for individualized remote approaches that can be of benefit to patients on a national scale. This study is a remote, randomized delayed start trial of the effectiveness of videoconference based cognitive behavioral therapy (eCBT) for PD patients with depressive symptoms. N=120 participants with PD and depressive symptoms will be recruited from neurological clinics across four health regions in Norway and self-reference, and randomized into two arms: (A) immediate eCBT with concurrent with TAU and (B) a delayed start (14 weeks) of eCBT with TAU alone. Patients will be assessed at baseline before allocation to treatment, with followed up evaluations 14, 28 and 42 weeks after baseline. The trial is designed as a state-of-the-art remote clinical trial, that can be easily implemented existing health services, resulting in a rapid implementation and improvement of treatment for patients with PD, and potentially large translational value to other brain disorders.
This study aims to investigate the possible efficacy and safety of synbiotic preparation of Lactobacillus acidophilus probiotic with prebiotic fibers as an adjuvant therapy in the treatment of Parkinson's disease
By defining the strength and direction of connectivity patterns at rest and during movement across the basal ganglia-thalamocortical (BGTC) network we will characterize the role of individual circuits in motor performance and cognitive function, paving the way for future development of optimization algorithms for DBS that take advantage of this understanding.
The goal of this study is to establish safety and feasibility of intracerebral delivery of GCase via MRgFUS. This technique may offer potential benefits given the exposure of the putamen to GCase in animal models has been shown to be efficacious in improving Parkinson's disease pathology and phenotype.
This study is a double blind comparative study examining the effectiveness of the transcutaneous auricular vagus nerve stimulation treatment on Parkinson's disease patients . We hypothesize that treatment using transcutaneous auricular vagus nerve stimulation will improve gait impairments and cortical activity in Parkinson's disease patients.
Rationale: Many persons with Parkinson's disease (PD) develop a progressive resistance to levodopa, which is the pharmacological mainstay of PD treatment. Recently, two enzymatic pathways have been identified that could be (partially) responsible for this: 1) breakdown of levodopa by bacterial tyrosine decarboxylase (TDC), an enzyme which normally decarboxylates dietary tyrosine but which is also able to decarboxylate levodopa. Accumulation of bacterial TDC in the small intestine, such as in the context of small-intestinal bacterial overgrowth (SIBO) - for which persons with PD are at increased risk - has the potential to prematurely metabolize levodopa, hence limiting its bioavailability and effect. 2) paradoxical induction of activity of the enzyme aromatic L-amino acid decarboxylase (AADC) in chronic users of levodopa combined with a peripheral decarboxylase inhibitor, also leading to a premature breakdown of levodopa and limitation of its bioavailability and effect. Primary objective: in a cross-sectional sample of advanced (≥5 years) Parkinson's disease determining the prevalence of increased bacterial TDC activity in feces, and the prevalence of increased AADC activity in serum. Secondary objective: correlating these biomarkers to clinical parameters, correlating composition of the microbiome to TDC activity, to the presence of levodopa resistance, and to factors related to socio-economic status. Study design: using feces, serum samples and clinical data from n=50 participants, the relevant enzymes' activity will be measured and the composition of the gut microbiome will be determined. These will be correlated to the clinical and demographic parameters.