Parkinson's Disease (PD)

64

Review clinical trials related to Parkinson's Disease (PD). Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Moving Yourself in Space and Time: MYSTIC

This study is being done to answer the question: Do people with Parkinson's benefit from a new stepping therapy, and how do people with Parkinson's best learn new steps and rhythms set to music? Researchers will also compare individuals with Parkinson's Disease with people with Mild Cognitive Impairment, and with people with neither of these conditions. The purpose of this study is to identify principles of human-music interactions to establish underlying guiding theories for application to music-based rehabilitation for older populations with neurodegenerative disease, leading to more refined and targeted music-based rhythmic movement therapies.

Participants needed: 210
Trial details
Age: 18-79Biological sex: AllType: InterventionalSponsor: Emory UniversityUpdated: Jul 13, 2026Locations: 1
Eligibility criteria

18 to 35 Years old [+4]

Acute medical illness requiring hospitalization; [+9]

Status: Not yet recruiting

A Study to Evaluate the Efficacy and Safety of ENERGI-F705 Tablets for Parkinson's Disease

The goal of this clinical trial is to learn if this study drug, ENERGI-F705 Tablets, is safe and works to treat participants who have Parkinson's disease and are currently on standard-of-care antiparkinsonian medications. The main question it aims to answer is: Does ENERGI-F705 Tablets work to treat Parkinson's disease when used with standard-of-care treatment? Investigators will compare the three treatment groups, high-dose ENERGI-F705 Tablets (120 milligrams twice daily), low-dose ENERGI-F705 Tablets (60 milligrams twice daily), and placebo tablets (a look-alike substance that contains no drug), to see if ENERGI-F705 Tablets work to treat Parkinson's disease. Participants will: * Take the study drugs twice a day for 72 weeks in the treatment group * Take routine use of standard-of-care antiparkinsonian medications throughout the study * Visit the outpatient department at scheduled visits, ranging from Day 1 to approximately every 1 to 4 weeks thereafter, for checkups and tests

Participants needed: 105
Trial details
Phase: Phase 2Age: 40-75Biological sex: AllType: InterventionalSponsor: Energenesis Biomedical Co., Ltd.Updated: Jul 2, 2026Locations: 2
Eligibility criteria

With either gender aged ≥ 40 to ≤ 75 years old at Visit 1 (Screening Visit) [+17]

Has been diagnosed with atypical Parkinson's disease or secondary parkinsonism [+25]

Status: Recruiting

A Study to Evaluate Satety, Tolerability, Biodistribution, Radiation Dosimetry, and Pharmacokinetics of SST001 in Healthy Volunteers, Patients With PD and Patients With MSA

The non-randomized, open-label phase I study aims to evaluate the safety, tolerability, biodistribution, radiation dosimetry, and pharmacokinetics of SST001 in healthy volunteers, patients with MSA and patients with PD.

Participants needed: 30
Trial details
Phase: Phase 1Age: 40+Biological sex: AllType: InterventionalSponsor: Synusight Biotech (Shanghai) Co., Ltd.Updated: Jun 30, 2026Locations: 2
Eligibility criteria

Sign the informed consent form approved by IEC. [+7]

Being pregnant or lactating. [+10]

Status: Not yet recruiting

LRRK2 Parkinson's Disease Fingerprint

The goal of this interventional monocentric study is to identify molecular and clinical markers of LRRK2-related Parkinson's disease through blood markers analysis and deep clinical phenotyping. Patients who meet the inclusion criteria, after signing the informed consent form will be clinically evaluated by a neurologist expert in movement disorders. Eventually, patients will undergo a blood sample collection, a brain MRI, and a high density EEG. All data will be collected using an ad hoc electronic Case Report Form (CRF) developed for the study

Participants needed: 20
Trial details
Age: 30-80Biological sex: AllType: InterventionalSponsor: Fondazione Policlinico Universitario Agostino Gemelli IRCCSUpdated: Jul 2, 2026
Eligibility criteria

age 30-80 years, [+4]

Active or history of other neurological disorders, [+5]

Status: Not yet recruiting

The Efficacy of Psilocybin Therapy for Depression in Parkinson's Disease

The purpose of this study is to understand whether people with Parkinson's Disease and depression have improvement in their symptoms after psilocybin therapy.

Participants needed: 40
Trial details
Phase: Phase 2Age: 40-80Biological sex: AllType: InterventionalSponsor: Yale UniversityUpdated: Jun 29, 2026Locations: 1
Eligibility criteria

Able to understand and provide informed consent [+13]

Any indication of forms of parkinsonism other than idiopathic Parkinson's diseas... [+53]

Status: Recruiting

Open-label Study to Evaluate Brain α-Synuclein Deposition Using PET and [18F]MK-0947 in Parkinson's Disease

This clinical study is being conducted to learn more about a new imaging drug called \[18F\]MK-0947, which is designed to help doctors see changes in the brain related to Parkinson's disease (PD). PD is a condition that affects movement, balance, and thinking. The drug works with a type of scan called PET (Positron Emission Tomography) to show areas of the brain where a protein called α-synuclein builds up. This buildup is linked to PD and other brain disorders. The main goal of this study is to find out if \[18F\]MK-0947 is safe for people and if it works well to show α-synuclein in the brain. The study will also look at how the drug moves through the body and how much radiation it gives off. Researchers hope this information will help develop better tools for diagnosing PD and tracking how it changes over time. Who can join? Adults who have PD or who are healthy may be able to take part. Participants will have screening tests to make sure they qualify. What does participation involve? People in the study will have PET scans, blood tests, and other safety checks. Some participants will also have an MRI scan. The study is divided into two parts: Part 1 looks at how the drug works in the brain of PD patients and healthy elderly participants, and Part 2 measures radiation levels in healthy participants. Why is this important? There is currently no cure for PD, and better imaging tools could help researchers develop new treatments. By joining this study, participants will help advance research that may improve care for people with PD and similar conditions in the future.

Participants needed: 22
Trial details
Phase: Early Phase 1Age: 18-80Biological sex: AllType: InterventionalSponsor: InvicroUpdated: Jun 26, 2026Locations: 2
Eligibility criteria

Signed informed consent prior to any study procedures [+6]

Unwilling or unable to provide informed consent [+6]

Status: Not yet recruiting

The Effects of Tele-Rehabilitation-Based Dual-Task Upper Extremity Training in Patients With Parkinson's Disease

The aim of this study is to compare the effects of tele-rehabilitation-based synchronous and asynchronous dual-task upper extremity training with clinical based dual-task upper extremity training and conventional single-task upper extremity training in patients with Parkinson's disease. The main questions it aims to answer are: * Whether there are differences in motor symptoms, hand dexterity, upper extremity functions, grip strength, executive functions, daily living activities, and treatment satisfaction between tele-rehabilitation-based synchronous and asynchronous dual-task upper extremity training, clinical-based dual-task upper extremity training, and conventional single-task upper extremity training in patients with Parkinson's disease. * Whether there is a difference in telemedicine satisfaction between tele-rehabilitation-based synchronous and asynchronous dual-task upper extremity training in patients with Parkinson's disease. Researchers will compare conventional single-task upper extremity training, clinical-based dual-task upper extremity training, tele-rehabilitation-based synchronous upper extremity training and tele-rehabilitation-based asynchronous upper extremity training. Participants will: * Receive upper extremity exercise training at the study clinic or home, twice a week for approximately 60 minutes each time, for 6 weeks. * Participate in assessments at the study clinic before and after exercise training.

Participants needed: 40
Trial details
Age: 40+Biological sex: AllType: InterventionalSponsor: Saglik Bilimleri UniversitesiUpdated: Jun 18, 2026
Eligibility criteria

Having been diagnosed with Parkinson's disease by a neurologist according to the... [+3]

Presence of a neurological disease other than Parkinson's disease [+4]

Status: Recruiting

Comparison of Two Different Dual-Task Training Methods in Patients With Parkinson's Disease

The aim of this study is to compare the effectiveness of motor-motor dual-task training and cognitive-motor dual-task training in patients with Parkinson's disease.The main questions it aims to answer are: \- Whether there is a difference between motor-motor dual-task training and cognitive-motor dual-task training in patients with Parkinson's disease in terms of their effects on motor symptoms, balance, gait, functional mobility, activities of daily living, dual-task activities, cognitive functions, and balance confidence. Researchers will compare single-task training, motor-motor dual task training and cogvitive-motor dual task training. Participants will: * Receive exercise training at the study clinic twice a week for approximately 45 minutes each time, for 6 weeks. * Participate in assessments at the study clinic before and after exercise training.

Participants needed: 39
Trial details
Age: 40+Biological sex: AllType: InterventionalSponsor: Saglik Bilimleri UniversitesiUpdated: Jun 18, 2026Locations: 1
Eligibility criteria

Having been diagnosed with Parkinson's disease by a neurologist according to the... [+1]

Presence of a neurological disease other than Parkinson's disease [+4]

Status: Recruiting

Nutritional Intervention for Constipation Symptoms in Patients With Parkinson's Disease

The goal of this clinical trial is to evaluate whether a dietitian-guided nutritional intervention can improve constipation symptoms in people with Parkinson's disease (PD). The main questions it aims to answer are: * Can a dietitian-guided nutritional intervention increase the number of weekly bowel movements in individuals with PD and functional constipation? * Can this intervention positively influence gut microbiota composition, dietary intake, and nutritional status? Researchers will compare the intervention group to a control group that will receive general dietary guidance only after the study period, to see if the intervention leads to improvements in bowel function and related health outcomes. Participants will: * Follow a diet plan developed by a dietitian, based on dietary reference intakes and tailored to the needs of individuals with PD and constipation * Participate in follow-up sessions with the dietitian for 3 months * Complete assessments at baseline, midpoint, and end of the intervention to evaluate bowel function, constipation symptoms, gut microbiota, nutritional status, and diet quality

Participants needed: 54
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Hospital de Clinicas de Porto AlegreUpdated: Jun 16, 2026Locations: 1
Eligibility criteria

Adults with a previous diagnosis of Parkinson's disease [+2]

Diagnosis of atypical or secondary parkinsonism [+12]

Status: Not yet recruiting

Immediate Effects of External Trigeminal Nerve Stimulation on Motor Dysfunction in Parkinson's Disease

Parkinson's disease (PD), the most common movement disorder, is characterized by motor symptoms including tremor, rigidity, bradykinesia, and postural instability. These symptoms substantially impair quality of life and increase the risk of falls, disability, and accidental injury, representing a major therapeutic challenge. External trigeminal nerve stimulation (eTNS), a non-invasive neuromodulation technique, has shown promising potential in PD and other movement disorders. A clinical study published in 2017 suggested that trigeminal nerve stimulation may contribute to the alleviation of motor symptoms in patients with PD. In 2023, the U.S. Food and Drug Administration cleared the Portable Neuromodulation Stimulator (PoNS) as an adjunctive treatment for gait impairment caused by multiple sclerosis; the lingual nerve is a branch of the mandibular division of the trigeminal nerve. In the same year, experimental evidence showed that trigeminal nerve stimulation could activate intracranial dopaminergic neurons and modulate dopamine release in mice. These findings suggest substantial potential for eTNS in modulating motor dysfunction in PD, although high-level clinical evidence remains lacking. This randomized, within-subject study will evaluate the immediate effects of eTNS at different stimulation frequencies on motor dysfunction in patients with PD. Gait parameters will be quantitatively assessed using the IDEEA gait system, together with the MDS-Unified Parkinson's Disease Rating Scale Part III (MDS-UPDRS Part III), Tinetti Gait Scale, and Hoehn and Yahr Scale. This within-subject study comprises three 20-min stimulation conditions: 120-Hz eTNS, 40-Hz eTNS, and sham stimulation. Each patient with Parkinson's disease will complete all conditions in a single session in randomized order. Instrumented gait analysis, together with motor and gait rating scales, will be used to quantify immediate post-stimulation changes in gait and motor function relative to baseline.

Participants needed: 30
Trial details
Age: 40-80Biological sex: AllType: InterventionalSponsor: Zhengli DiUpdated: Jun 18, 2026Locations: 1
Eligibility criteria

Patients with idiopathic Parkinson's disease diagnosed by two neurologists, acco... [+7]

Secondary parkinsonism or atypical parkinsonian syndromes. [+5]

Status: Recruiting

A Study of Buntanetap in Participants With PD

This study will examine the long-term safety of buntanetap in participants with PD. This will be a 36-month open-label safety study. This study will be conducted with two cohorts. Cohort 1 will enroll via invitation only for PD participants who have previously participated in buntanetap clinical trials. Cohort 2 will be for PD participants who are receiving deep brain stimulation (DBS) treatment. Qualified participants will receive buntanetap 30mg QD after a screening period of up to 42 days.

Participants needed: 500
Trial details
Phase: Phase 2, Phase 3Age: 40-85Biological sex: AllType: InterventionalSponsor: Annovis Bio Inc.Updated: Jun 15, 2026Locations: 27
Eligibility criteria

Diagnosis of idiopathic PD according to MDS Clinical Diagnostic Criteria for Par... [+22]

Cohort 1 only: Is currently receiving DBS treatment. (Participant may enroll in... [+22]

Status: Recruiting

A Study to Investigate the Efficacy and Safety of Bemdaneprocel in Adults Who Have Parkinson's Disease

Study BRT-DA01-301 is a Phase 3 multicenter, randomized, sham surgery-controlled, double-blind study to assess efficacy and safety of bemdaneprocel in approximately 102 adults with Parkinson's Disease (PD).

Participants needed: 102
Trial details
Phase: Phase 3Age: 45-75Biological sex: AllType: InterventionalSponsor: BlueRock TherapeuticsUpdated: Jun 5, 2026Locations: 40
Eligibility criteria

Diagnosis of clinically established PD as defined by the International Parkinson... [+7]

PD presenting with recurrent falls [+11]

Status: Recruiting

Remote Haptic Rehabilitation for Parkinson's Disease

Individuals with Parkinson's Disease (PD) often have motor difficulties that can negatively impact daily activities and their quality of life. Research has shown that to slow the progression of these symptoms, patients should partake in effective physical rehabilitation. However, effective physical rehabilitation has many barriers, including timing, cost, and other personal or system-level challenges. The purpose of this study is to evaluate the haptic remote rehabilitation system for patients with PD using a randomized controlled trial (RCT) in a field environment.

Participants needed: 20
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Virginia Polytechnic Institute and State UniversityUpdated: Jun 5, 2026Locations: 1
Eligibility criteria

Over 18 years old [+1]

Hoehn and Yahr stage outside 1-3 [+3]

Status: Recruiting

Subthalamic Nucleus-Targeted Transcranial Temporal Interference Stimulation for Motor and Non-Motor Symptoms in Parkinson's Disease

Transcranial temporal interference stimulation (tTIS) is a non-invasive deep brain stimulation method. This study aims to comprehensively explore the efficacy and safety of bilateral subthalamic nucleus (STN) tTIS on motor and non-motor symptoms in patients with Parkinson's disease (PD).

Participants needed: 32
Trial details
Age: 50-85Biological sex: AllType: InterventionalSponsor: Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineUpdated: Jun 4, 2026Locations: 1
Eligibility criteria

Aged 50-85 years, male or female. [+4]

Non-primary Parkinson's disease or other parkinsonism / atypical parkinsonism. [+9]

Status: Recruiting

Biomechanical Effects of EMST® on Swallowing Function in Parkinson's Disease

The aim of this non-randomized intervention study is to investigate the detailed effects of a structured four-week EMST® training program on the biomechanics of swallowing function in dysphagic Parkinson's patients. A combination of fiberoptic endoscopic evaluation of swallowing (FEES) and pharyngeal high-resolution manometry (HRM) will be employed to comprehensively evaluate the neuromuscular changes in swallowing.

Participants needed: 30
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University Hospital MuensterUpdated: Jun 3, 2026Locations: 1
Eligibility criteria

diagnosis of Parkinson's disease, [+1]

severe dementia, not able to give consent [+1]

Status: Recruiting

A Phase I Study in Healthy Volunteers and Parkinson's Disease (PD) Patients.

The goal of this study is to learn if MTX325 can be developed as a potential disease-modifying treatment for Parkinson's Disease.

Participants needed: 106
Trial details
Phase: Phase 1Age: 18-75Biological sex: AllType: InterventionalSponsor: Mission TherapeuticsUpdated: Jun 5, 2026Locations: 5
Eligibility criteria

Healthy male and female (Part 1-2 only) participant, aged ≥ 18 to ≤ 55 years. [+35]

A clinically significant history of gastrointestinal disorder likely to influenc... [+56]

Status: Not yet recruiting

Coordinated Reset Deep Brain Stimulation for Parkinson's Disease

Deep brain stimulation (DBS) is a surgical implant procedure for the treatment of Parkinson's Disease (PD) utilizing medical devices approved by the FDA. A novel approach to current DBS approaches is called "Coordinated Reset" DBS (CR-DBS) which uses different patterns of stimulation at lower currents and can address the limitations of traditional DBS (T-DBS) that uses continuous high amplitude and high frequency stimulation. This study will evaluate the safety and short-term efficacy of CR-DBS in PD. The results from this study will significantly advance the development of CR-DBS for the treatment of PD. Findings in this study will also provide the rationale for further development of this novel DBS approach for other neurological and psychiatric disorders.

Participants needed: 24
Trial details
Phase: Phase 1Age: 21+Biological sex: AllType: InterventionalSponsor: University of MinnesotaUpdated: May 20, 2026
Eligibility criteria

Diagnosis of Idiopathic Parkinson's Disease [+2]

History of musculoskeletal disorders that affect movement of the limbs/gait [+5]

Status: Recruiting

Exergaming for Improving Upper Limb Functions in Parkinson's Disease

Parkinson's Disease commonly results in impaired hand dexterity, reducing a patient's ability to perform activities of daily living. While digital exergaming has been used to encourage physical activity and improve motor function, it often lacks real-world tactile engagement. Integrating physical objects into exergaming known as a phygital approach which may enhance sensorimotor learning and functional carryover. However, its impact on upper limb functional outcomes in PD remains underexplored. Objectives: To assess the effectiveness of exergaming with physical objects on functional outcomes of upper limb rehabilitation in individuals with Parkinson's Disease. Methodology: This randomized controlled pilot study will include 30 individuals with early-stage Parkinson's Disease, recruited through convenience sampling and randomly assigned to either a phygital exergaming group or a control group. Both groups will receive sessions over three monthd (3 sessions/week, 30 minutes each). The phygital group will perform task-based exergaming using both physical objects and digital prompts, while the control group will use digital prompts alone. Functional outcomes will be assessed using the Box and Block Test (BBT), at baseline (day 1) and post intervention 12 weeks. Statistical Analysis: Data will be analyzed using SPSS version 25. Descriptive statistics like gender, stages of diseases etc. will be summarized and described as bar charts and percentages. Within-group differences will be assessed using paired t-tests or Wilcoxon signed-rank tests based on data normality. Between-group comparisons will be conducted using independent t-tests or Mann-Whitney U tests. A p-value of less than 0.05 will be considered statistically significant.

Participants needed: 30
Trial details
Age: 45-85Biological sex: AllType: InterventionalSponsor: University of Health Sciences LahoreUpdated: May 19, 2026Locations: 1
Eligibility criteria

Early-stage Parkinson's Disease from I-III of Hoehn and Yahr scale [+3]

Advanced stage IV or V [+3]

Status: Recruiting

Exoskeleton-Assisted Mobility in Aging and in Parkinson's Disease

This study will evaluate whether a wearable robotic exoskeleton can improve mobility, balance, and walking in healthy older adults and in individuals living with Parkinson's disease, populations at high risk of falls and mobility limitations. Participants will attend two laboratory sessions. The first session includes clinical assessments, fitting and familiarization with the exoskeleton, and interviews to explore user perceptions. The second session involves performing functional mobility tasks (e.g., walking, standing, turning) with and without the exoskeleton and under different assistance levels, while movement is measured using wearable sensors. The study will assess the immediate effects of the exoskeleton on mobility, compare assistance levels, identify which participants benefit most, and explore user experience and acceptability. Findings will help inform the development and implementation of assistive technologies to support mobility in healthy aging and in individuals with Parkinson's disease.

Participants needed: 26
Trial details
Age: 50+Biological sex: AllType: InterventionalSponsor: Centre intégré de santé et de services sociaux de l'OutaouaisUpdated: May 13, 2026Locations: 1
Eligibility criteria

Ability to walk for at least 30 minutes with or without minimal aid [+2]

Height smaller than 152 cm [+15]

Status: Recruiting

Impact of Force Control of Hip Abductor Muscles in Healthy Adults and Individuals With Parkinson's Disease

Both aging and Parkinson's disease (PD) negatively affect postural control and increase the risk of falls, with frontal plane balance being particularly challenging for these populations. While previous studies have mainly focused on sagittal plane balance, the contribution of hip abductor muscles remains unclear, especially regarding their force production and control abilities. Therefore, this study aims to investigate hip abductor muscle force production and force control, and to examine whether these factors are associated with postural control, gait, and balance performance in individuals across different ages and those with PD.

Participants needed: 210
Trial details
Age: 20-85Biological sex: AllType: ObservationalSponsor: Chang Gung Memorial HospitalUpdated: May 8, 2026Locations: 2
Eligibility criteria

20 to 39 years (young), 40 to 59 years (young), and 60-85 years (old) [+3]

neurologic, psychiatric, immune, integumentary, and musculoskeletal diseases or... [+13]

Status: Recruiting

Closed-loop TMS for Tremor

This study investigates the potential of phase-locked transcranial magnetic stimulation (TMS) as a non-invasive intervention for tremor in patients with Essential Tremor (ET) and Parkinson's Disease (PD). Tremor is a prevalent symptom that significantly impacts physical function and social participation. ET affects approximately 1% of the global population and worsens with age, while PD tremor is often less responsive to conventional dopaminergic therapy. Current treatments, including oral medications (propranolol, primidone), anticholinergics, and deep brain stimulation (DBS), are either limited by efficacy, side effects, or invasiveness. These challenges highlight the need for alternative, less invasive therapeutic options. The rationale for the study is based on the principle of phase-dependent neural modulation. Just as a swing's amplitude can be increased or decreased depending on when it is pushed, neural oscillations underlying tremor can theoretically be suppressed by precisely timed stimulation. Previous studies have shown that TMS over the motor cortex at tremor frequency (\~5 Hz) produces modest improvements in PD rest tremor. This study aims to enhance these effects by targeting amplitude-suppressing phases in the tremor cycle, potentially leading to greater and cumulative tremor reduction. The study has two components: Study 1 (Primary Objective): Determine whether phase-locked TMS can acutely reduce tremor. Participants (20 ET, 20 PD) will undergo two visits where tremor is recorded via inertial measurement units (IMUs) and surface EMG. TMS will be delivered over the motor cortex at or below active motor threshold, synchronized to the participant's tremor phase. The primary outcome is the change in tremor power during stimulation compared to no stimulation, measured objectively via IMU signals. Study 2 (Secondary Objective): Examine whether stimulation at the maximal tremor-suppressing phase, identified in Study 1, produces a larger reduction in tremor amplitude than stimulation at the minimal suppressing phase or sham stimulation. This will involve three additional sessions per participant, randomized for order, with outcomes assessed via IMU tremor power and participant-reported measures including the Quality of Life in Essential Tremor Questionnaire (QUEST), TETRAS, and Unified Parkinson's Disease Rating Scale (UPDRS). Study Design and Procedures: The design is a within-subject crossover. Participants may withhold tremor medications during visits to reduce confounding effects. EMG electrodes and IMU sensors will record tremor, while a figure-of-eight TMS coil will deliver phase-locked pulses. Phase-specific stimulation trains are applied for 3 seconds at intervals, with randomized order across multiple blocks. Study sessions last under two hours, including setup and post-stimulation recordings. Participants are recruited via self-referral or through DeNDRoN, screened for eligibility, and provide informed consent. Inclusion criteria require symptomatic ET or PD tremor, age ≥18, and ability to consent. Exclusion criteria include epilepsy, psychiatric illness, metal implants, pacemakers, or other conditions contraindicating TMS. Participants may withdraw at any time without penalty. Safety Measures: TMS and IMU recordings are low-risk, with potential minor effects including scalp tapping sensations, muscle twitches, or mild headaches, which are managed through monitoring and coil adjustment. Serious adverse events are defined, and procedures for reporting and auditing are established in accordance with UK regulations and Good Clinical Practice. Data Analysis: Tremor power will be quantified from IMU recordings using spectral analysis. Statistical comparisons between stimulation conditions and baseline will be conducted using paired t-tests or Wilcoxon tests. The study will employ validated software for randomization and analysis (SPSS, Matlab). Data will be pseudo-anonymized, securely stored, and archived for long-term research use. Ethical Considerations: The study follows the Declaration of Helsinki, Good Clinical Practice, and institutional approvals. Participants' privacy and data protection are ensured under GDPR standards. There are no commercial conflicts of interest, and participants are reimbursed for travel expenses. In summary, this research aims to evaluate the efficacy of phase-locked TMS as a non-invasive, targeted interventionfor tremor in ET and PD. By systematically stimulating the motor cortex at tremor-specific phases, the study seeks to establish a foundation for future minimally invasive treatments that could complement or replace existing pharmacological and surgical options.

Participants needed: 20
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of OxfordUpdated: May 7, 2026Locations: 1
Eligibility criteria

having either essential tremor or Parkinson's disease

contraindications to brain stimulation

Status: Recruiting

Enrichment of Glutathione Using Gamma-glutamylcysteine Supplementation in Parkinson's Disease Patients.

This study is designed l to evaluate the effects of GGC oral supplementation in early Parkinson's disease (PD) patients. The main objectives of the study are to evaluate: 1. To study the enrichment of master antioxidant, glutathione (GSH) levels in brain and blood of these PD patients compared to baseline due to GGC supplementation. 2. To study the changes in motor function, cognitive skills in PD patients due to GGC oral supplementation 3. To study impact of GGC on gut health on the PD patients.

Participants needed: 12
Trial details
Phase: Phase 1Age: 50-80Biological sex: AllType: InterventionalSponsor: Pravat MandalUpdated: May 4, 2026Locations: 1
Eligibility criteria

Confirmed Parkinson's Disease diagnosis. [+3]

Presence of pacemakers, aneurysm clips, artificial heart valves, ear implants, m... [+7]

Status: Recruiting

Cerebellar Transcranial Alternating Current Stimulation (tACS) to Modulate Parkinson's Disease Tremor

Parkinson's disease (PD) is a prevalent neurodegenerative disorder characterized by different motor symptoms, including tremor, which is particularly difficult to manage. Common treatments, such as dopaminergic therapy, can have limitations in efficacy. Recent advancements in non-invasive brain stimulation, specifically phase-adaptive transcranial alternating current stimulation (tACS), offer a promising approach to reduce PD tremor. In the current project, a newly developed closed-loop system delivers precisely synchronized cerebellar tACS by aligning stimulation with the intrinsic hand tremor signal. The study will assess the efficacy of this novel approach to reduce hand tremor in PD patients.

Participants needed: 10
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Universitätsklinikum Hamburg-EppendorfUpdated: May 4, 2026Locations: 1
Eligibility criteria

Clinical diagnosis of Parkinson's disease based on UK Brain Bank criteria [+2]

History of other neurological disorders such as vascular malformations, ischemic... [+2]

Status: Not yet recruiting

Understanding Alpha-Synuclein Spread in Parkinson's Disease Through Blood Biomarkers and Neuroimaging

The project aims to investigate how abnormal accumulation of alpha synuclein and its interaction with tau influence brain function across the Parkinson's disease (PD) spectrum, with particular focus on individuals carrying GBA1 mutations. This interventional, monocentric, cross sectional study includes patients with PD, individuals with idiopathic REM sleep behavior disorder, and participants without PD. All enrolled subjects will undergo clinical and neuropsychological assessments, blood based biomarker analyses related to neurodegeneration, synaptic and mitochondrial function, and multimodal brain MRI to evaluate brain structure, white matter integrity, and functional connectivity. The study aims to: * characterize the relationship between alpha synuclein/tau pathology and synaptic mitochondrial dysfunction; * identify biomarker and connectivity signatures across disease stages and genetic backgrounds; * integrate preclinical, clinical, biological, and imaging data to support the development of mechanistic models of alpha synuclein propagation. In parallel, preclinical studies in GBA PD mouse models and wild type mice will be used to investigate how changes in PD-related pathology (alpha-synuclein and tau) relates to behavior, brain imaging alterations and mitochondrial, axonal and synaptic damage. Animal model will also aid the validation of a new PET tracer that targets alpha synuclein (i.e., \[¹⁸F\]Syntacasyn). Together, human and preclinical studies are designed to provide a translational framework integrating molecular changes with brain network alterations and clinical heterogeneity in PD.

Participants needed: 160
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of PaviaUpdated: May 1, 2026Locations: 2
Eligibility criteria

Diagnosis of PD according to MDS-PD criteria and, for the GBA-PD group, presence... [+5]

Diagnosis of atypical and/or secondary parkinsonism; [+20]

Status: Not yet recruiting

Automated Image-Guided Programming of Deep Brain Stimulation (DBS) for Parkinson's Disease

The goal of this clinical trial is to evaluate an automated deep brain stimulation (DBS) algorithm developed by Boston Scientific called Illumina 3D for motor symptoms in Parkinson's disease (PD). The main question it aims to answer is: Is this new automated algorithm effective for treating motor symptoms of PD. Fifteen participants are anticipated to be enrolled. Participants are individuals who recently were implanted with DBS in the subthalamic nucleus as part of their regular clinical treatment and are scheduled to have their DBS turned ON for the first time. In addition to their regular clinical visit when their DBS is turned ON by their clinician, participants are tested on DBS settings determined by Illumina 3D (an automated algorithm). Participants are tested on these different settings across different motor tasks, including walking and finger tapping, as well as answering questionnaires. The experiment is expected to last 1 or 2 days; this is not a longitudinal or long-term trial. Participants return to their usual DBS settings once they leave the clinic.

Participants needed: 15
Trial details
Age: 21+Biological sex: AllType: InterventionalSponsor: Stanford UniversityUpdated: Apr 27, 2026Locations: 1
Eligibility criteria

Diagnosis of Parkinson's disease (PD) [+2]

Dementia [+1]