Parkinsonism

11

Review clinical trials related to Parkinsonism. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Cross-System Effects of Acute Intermittent Hypercapnia-Based Interventions in PD

Parkinsonism impairs upper airway and axial motor control, leading to disordered breathing, reduced speech volume, and ineffective cough. Symptoms are poorly addressed by current therapies. This randomized pilot trial tests whether a single session of acute intermittent hypercapnic hypoxia (AIHH) or hypercapnic normoxia (AIHN) improves upper airway and axial motor function in Parkinsonism, and explores biomarker correlates of intervention responsiveness.

Participants needed: 32
Trial details
Age: 40-75Biological sex: AllType: InterventionalSponsor: University of FloridaUpdated: Jun 29, 2026Locations: 2
Eligibility criteria

adults 40 to 75 years of age (the latter to reduce the likelihood of cardiovascu... [+5]

additional neurologic conditions [+9]

Status: Recruiting

A Multimodal Prospective Cohort Study of Parkinsonism

This is a single-center, prospective, observational cohort study designed to investigate the progression and differential diagnosis of Parkinsonism using a multimodal approach. The study plans to enroll 400 patients with Parkinsonism, 120 patients with rapid eye movement sleep behavior disorder, and 120 healthy controls, with follow-up for 5 years. Assessments will include neuroimaging, clinical rating scales, biological samples, blood flow evaluation, neurophysiological testing, tremor analysis, and voice and video assessments. The study aims to characterize disease progression, explore factors associated with progression from rapid eye movement sleep behavior disorder to Parkinsonism, and improve the ability to distinguish among different Parkinsonian disorders.

Participants needed: 640
Trial details
Age: 31-79Biological sex: AllType: ObservationalSponsor: Ruijin HospitalUpdated: Apr 28, 2026Locations: 1Duration: 5 Years
Eligibility criteria

Meets the diagnostic criteria for rapid eye movement sleep behavior disorder est... [+14]

Significant cognitive impairment (MMSE ≤23) [+2]

Status: Recruiting

Etiology-Phenotype-Outcome Pathway Study on Freezing of Gait (FOG)

This study is a prospective, multicenter, observational cohort (patient registry) designed to better understand freezing of gait (FOG), a disabling walking problem that can occur in Parkinson's disease and other related neurological conditions.The purpose of this registry is to collect long-term clinical information from patients with freezing of gait or gait and balance problems, and to explore how different causes of FOG are related to symptoms, walking patterns, falls, disease progression, and outcomes over time. The study will include participants with Parkinson's disease and other conditions associated with freezing of gait.Participants will receive standard medical care as determined by their treating physicians. No experimental drugs or study-related treatments will be assigned as part of this registry. Clinical information will be collected during routine visits and follow-up assessments, including questionnaires, walking and balance evaluations, video recordings, and other commonly used clinical tests.The information collected in this study may help improve the understanding of freezing of gait, support better risk assessment for falls, and guide future research and clinical management strategies for patients with gait and balance disorders.

Participants needed: 700
Trial details
Age: 30-85Biological sex: AllType: ObservationalSponsor: Tianjin Huanhu HospitalUpdated: Mar 10, 2026Locations: 1Duration: 36 Months
Eligibility criteria

Age 30-85 years [+4]

Severe dementia (Mini-Mental State Examination score < 10) [+5]

Status: Recruiting

The Effect of Functional Rotational Exercises on Fall Risk and Mobility in Parkinson's Disease Patients

This study aims to contribute to clinical applications by investigating the effectiveness of functional rotation exercises on fall risk, mobility, and balance in patients diagnosed with idiopathic Parkinson's disease.

Participants needed: 50
Trial details
Age: 50-70Biological sex: AllType: InterventionalSponsor: Uskudar UniversityUpdated: Mar 3, 2026Locations: 1
Eligibility criteria

Individuals with a clinical diagnosis of idiopathic Parkinson's disease (Hoehn &... [+5]

Advanced Parkinson's disease (H&Y 3-5) [+3]

Status: Not yet recruiting

The Effect of Spinal Cord Stimulation on Orthostatic Hypotension in Parkinsonism and Its Related Mechanisms

Parkinson's disease (PDS) is a syndrome characterized by tremor, bradykinesia, rigidity, and postural disturbances. Causes include Parkinson's disease (PD), multiple system atrophy (MSA), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD). Non-motor symptoms of PDS, such as neurogenic orthostatic hypotension (nOH), have received more intensive research due to their greater disabling potential compared to motor symptoms. In patients with PD and MSA, nOH can lead to intolerance to medications such as levodopa, significantly increasing the risk of falls, accelerating cognitive decline, and increasing the risk of all-cause mortality. However, conventional pharmacological treatments (such as midodrine, droxidopa, and fludrocortisone) and non-pharmacological approaches (such as compression abdominal bands, elastic stockings, and deep brain stimulation) for non-motor symptoms such as nOH have numerous limitations, including short-term efficacy, uncertain efficacy, and side effects. Therefore, exploring new non-pharmacological treatments to improve nOH and delay disease progression in patients with PDS is crucial for improving their quality of life and prognosis. Spinal cord stimulation (SCS), including invasive (epidural) spinal cord stimulation (eSCS) and non-invasive (transcutaneous) spinal cord stimulation (tSCS), is a novel neuromodulatory technique with clinical applications in a variety of neurological diseases. Currently, several small-sample studies have suggested the potential efficacy of SCS for nOH caused by spinal cord injury (SCI). This study innovatively proposes the use of eSCS and tSCS to improve nOH and related clinical symptoms in patients with PDS. A prospective, single-center, randomized, controlled clinical trial is planned to compare the efficacy of invasive and non-invasive SCS in treating nOH, thereby providing new insights for the effective treatment of PDS.

Participants needed: 40
Trial details
Age: 40-80Biological sex: AllType: InterventionalSponsor: Ruijin HospitalUpdated: Jan 9, 2026Locations: 1
Eligibility criteria

1. Aged between 40 and 80 years; [+2]

1. Severe depression (HAMD-17 above 17 as moderate to severe) or anxiety; [+4]

Status: Recruiting

Observational Case Series of Patients With Parkinson's Disease (PD) Attending a Complementary Medicine Neuro-degenerative Disease (NDD) Clinic.

When the charity Homeopathy UK launched a new London based charitable clinic for Neurodegenerative Diseases (NDD), including Parkinson's Disease (PD), it was considered important to document patient's experiences of a high-quality complementary medicine clinic, to enable a greater understanding of the role of complementary medicine for PD. Routine clinical data, including a couple of questionnaires, is collected from consecutive patients with PD seen in the NDD clinic. Treatments provided are complementary to patients' usual medical treatment, and include homeopathy, herbalism, hypnosis, and healing. Patients may also be provided with self-help advice for lifestyle changes, mindfulness or meditation techniques, and dietary advice, as indicated for complementary therapy management of their condition. Consultations take place approximately every 3 months and patients complete questionnaires at the time of each consultation.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: St. Mary's University, TwickenhamUpdated: Oct 3, 2025Locations: 1
Eligibility criteria

Not listed

Status: Recruiting

Saliva and Extracellular Vesicles for Neurodegenerative Diseases

Early diagnosis of Neurodegenerative diseases (NDDs) and accurate patient profiling are key goals needed to tailor prompt personalized therapeutic strategies that can significantly impact disease progression and patients' quality of life. The project will validate a novel, cost-effective and quick biophotonic-based method for early and differential diagnosis of NDDs (Parkinson's disease, atypical parkinsonisms, Alzheimer's disease) and for routine clinical monitoring of NDD progression (longitudinal study). Raman spectroscopy (RS) will be applied to biochemically profile saliva and salivaderived Extracellular Vesicles (sEVs) and to identify a spectroscopic biomarker for NDDs. Optimized protocols for RS will be used to concomitantly evaluate saliva and sEVs from people with NDDs and to detect salivary changes in the biochemical profile, with special focus on EV-associated components. The accuracy of the method in discriminating NDDs at different disease stages and during disease progression will be verified. A nanotechnology-based biomolecular characterization of saliva and sEV will clarify the involvement of specific pathological molecules in NDDs progression.

Participants needed: 242
Trial details
Age: 45+Biological sex: AllType: ObservationalSponsor: Fondazione Don Carlo Gnocchi OnlusUpdated: Aug 7, 2025Locations: 5Duration: 12 Months
Eligibility criteria

AD: standard criteria for dementia due to AD with AD neurochemical demonstration... [+4]

For all the experimental groups considered, subjects with concomitant chronic an... [+2]

Status: Recruiting

Spinal Cord Stimulation for Parkinsonism

Spinal Cord Stimulation (SCS) is a newly emerged neuromodulation technique in recent years. It is now a mature technique in the treatment of chronic pain and is generally accepted by patients because of its non-destructive and reversible nature, few complications, no side effects, and avoidance of unnecessary surgical procedures. Combining the results of previous studies and the group's previous research, this study first proposes an innovative treatment protocol for PDS with SCS. We intend to conduct a prospective single-center open clinical trial to evaluate the improvement of orthostatic hypotension, urinary retention, sleep disturbance, dysarthria, and dysphagia in Parkinsonism (PDS) patients before and after SCS treatment, and shed new light on the treatment for PDS.

Participants needed: 50
Trial details
Age: 50-80Biological sex: AllType: InterventionalSponsor: Ruijin HospitalUpdated: May 9, 2025Locations: 1
Eligibility criteria

Diagnosed with parkinsonism according to MDS clinical diagnostic criteria for Pa... [+3]

Severe depression (HAMD-17 above 17 as moderate to severe) or anxiety [+3]

Status: Recruiting

Modifiable Variables in Parkinsonism (MVP)

We are trying to identify factors associated with improved quality of life and fewer PD symptoms. We are attempting to identify practices, beliefs, and therapies used by individuals who report excellent quality of life, few PD symptoms, and reduced rates of progression. After agreeing to participate, we will ask participants to fill our questionnaires about their experience with PD, their health in general, along with their food intake every six months for five years.

Participants needed: 2,000
Trial details
Age: 19+Biological sex: AllType: ObservationalSponsor: Bastyr UniversityUpdated: Mar 25, 2022Locations: 1
Eligibility criteria

Parkinson's disease (PD) [+4]

Inability to read/write English [+1]

Status: Recruiting

Parkinson's Families Project

One person in every 500 has Parkinson's and around 127,000 people are living with the condition in the UK. The aim of the study is to identify new genes that predispose or cause Parkinson's Disease or Parkinsonism. There is a pressing need to study the genetic makeup of family members both with and without Parkinson's. As families share a common genetic background, it is easier to find new Parkinson's genes by studying the genetic makeup of people with Parkinson's alongside other members of their families. We are particularly interested in studying the genetic makeup of two groups of people: 1. those who developed Parkinson's before the age of 45; and 2. those who have a family history of other relatives affected by Parkinson's. By identifying genetic factors that cause Parkinson's, we hope to understand more about the condition. Doing so will lead to the development of better diagnosis, improved disease models, and we hope in time, to the development of better treatment.

Participants needed: 2,000
Trial details
Age: 16+Biological sex: AllType: ObservationalSponsor: University College, LondonUpdated: Jun 12, 2019Locations: 2Duration: 1 Month
Eligibility criteria

Not listed

Status: Recruiting

Smoking Cessation With Varenicline in Schizophrenia: Antipsychotic-Induced Neurological Symptoms as Correlates

To test the feasibility of studying effects of smoking cessation with varenicline on antipsychotic drug-induced neurological side effects, we propose a 12 week pilot study of smoking cessation treatment with varenicline in 10 schizophrenia or schizoaffective disorder patients who are actively smoking and have pre-existing TD while receiving stable doses of antipsychotics. Subjects will be followed after a 2 week baseline period to assess changes in smoking status and neurological symptoms using standardized rating scales. The aim is to examine clinically significant effects on antipsychotic-induced neurological side effects that may warrant further investigation.

Participants needed: 10
Trial details
Phase: Phase 4Age: 18-75Biological sex: AllType: InterventionalSponsor: Corporal Michael J. Crescenz VA Medical CenterUpdated: Mar 22, 2019Locations: 1
Eligibility criteria

DSM 5 criteria for schizophrenia or schizoaffective disorder and stable disease [+5]

Have untreated or unstable acute medical or psychiatric illnesses [+14]