Parkinson disease
MONDO:0005180A progressive degenerative disorder of the central nervous system characterized by loss of dopamine producing neurons in the substantia nigra and the presence of Lewy bodies in the substantia nigra and locus coeruleus. Signs and symptoms include tremor which is most pronounced during rest, muscle rigidity, slowing of the voluntary movements, a tendency to fall back, and a mask-like facial expression.
Also known as: PD, Parkinson disease, Parkinson's disease, paralysis agitans
1300 clinical trials for this condition and its sub-types, 1169 tagged with Parkinson disease itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Parkinson disease
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Late-onset Parkinson disease 3 trials · 143 incl. sub-types
7 sub-types
- Autosomal dominant Parkinson disease 4 136 trials
- Autosomal dominant Parkinson disease 1 3 trials
- Autosomal dominant Parkinson disease 8 1 trial
- Parkinson disease 17 0 trials
- Parkinson disease 21 0 trials
- Parkinson disease 22, autosomal dominant 0 trials
- Autosomal recessive Parkinson disease 14 0 trials
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Young-onset Parkinson disease 9 trials · 11 incl. sub-types
9 sub-types
- Autosomal recessive early-onset Parkinson disease 6 4 trials
- Autosomal recessive juvenile Parkinson disease 2 2 trials
- Autosomal recessive early-onset Parkinson disease 7 1 trial
- Parkinson disease 10 0 trials
- Parkinson disease 12 0 trials
- Parkinson disease 3, autosomal dominant 0 trials
- Autosomal recessive early-onset Parkinson disease 23 0 trials
- Early-onset Parkinson disease 20 0 trials
- Juvenile-onset Parkinson disease 0 trials Sub-types →
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Parkinson disease 16 0 trials
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Parkinson disease, mitochondrial 0 trials
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Parkinsonian-pyramidal syndrome 0 trials
1 sub-type
- Paralysis agitans, juvenile, of Hunt 0 trials
Most studied deeper sub-types
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Virtual cues on a treadmill: a new hope for Parkinson's falls?
Disease control Stopped earlyThis trial tests whether adding augmented reality (AR) to treadmill training can help people with Parkinson's disease who have trouble walking and are at risk of falling. Participants will be randomly assigned to one of three groups: treadmill training with AR, treadmill training…
Sponsor: Klinik Valens • Aim: Disease control
Last updated Aug 12, 2026 00:00 UTC
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Experimental Parkinson's drug talineuren put to early safety test
Disease control Stopped earlyThis early-stage trial tested the safety of an intravenous drug called talineuren (liposomal GM1) in 22 people with Parkinson's disease. The study was open-label and designed to find a safe dose, but it was terminated before completion. No conclusions about effectiveness can be d…
Phase 1 • Sponsor: InnoMedica Schweiz AG • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Parkinson's drug trial halted: what we learned from UCB0599
Disease control Stopped earlyThis study looked at whether taking UCB0599 early or later could slow brain changes in people with Parkinson's disease. It involved 428 adults who had already completed an earlier study. The trial was stopped early, but researchers measured brain scans and medication use over 18 …
Phase 2 • Sponsor: UCB Biopharma SRL • Aim: Disease control
Last updated Jun 27, 2026 12:03 UTC
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Parkinson's drug trial halted early: what happened?
Disease control Stopped earlyThis study tested an experimental drug called VENT-02 in 29 people with mild to moderate Parkinson's disease. The drug aims to reduce brain inflammation by blocking a protein called NLRP3. The trial was terminated early, so we don't have clear results on whether it helps symptoms…
Phase 1/2 • Sponsor: Ventus Therapeutics U.S., Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:55 UTC
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New PET tracer aims to spot Parkinson's protein in living brains
Diagnosis Stopped earlyThis early-phase study tests a new imaging drug called [18F]MK-0947 that works with PET scans to show where a protein called α-synuclein builds up in the brain—a hallmark of Parkinson's disease. Researchers will check safety and how well the tracer works in 22 adults (some with P…
Early phase 1 • Sponsor: Invicro • Aim: Diagnosis
Last updated Jul 29, 2026 00:00 UTC
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Neck-Worn swallow detector fails key test
Diagnosis Stopped earlyThis study tested a wearable device that sits on the neck to detect swallowing problems in people with conditions like stroke, Parkinson's, multiple sclerosis, Alzheimer's, or dementia. The device was compared to a standard X-ray test. Unfortunately, the device did not meet the a…
Sponsor: Société des Produits Nestlé (SPN) • Aim: Diagnosis
Last updated Jun 27, 2026 08:05 UTC
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Parkinson's drug side effect targeted by antioxidant NAC – but trial stalls
Symptom relief Stopped earlyThis study tested whether N-acetylcysteine (NAC), an antioxidant, could help reduce impulse control disorders caused by Parkinson's medications. Only 14 people with mild-to-moderate symptoms were enrolled before the trial was stopped early. The goal was to see if 10 weeks of NAC …
Phase 3 • Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Symptom relief
Last updated Jun 27, 2026 13:07 UTC
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Robot trainer aims to help Parkinson's patients walk better
Symptom relief Stopped earlyThis study tested a robotic device called the G-EO Gait Trainer to help people with Parkinson's disease improve their walking. The device supports the body and guides leg movements to make walking practice safer and more effective. The trial was terminated early, so only limited …
Sponsor: Indiana University • Aim: Symptom relief
Last updated Jun 27, 2026 12:29 UTC
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Walking poles tested for Parkinson's: a simple step forward?
Symptom relief Stopped earlyThis study looked at whether using walking poles during an 8-week independent walking program could improve walking and activity levels in people with Parkinson's disease. Eleven participants were assigned to walk with or without poles at least three times a week. The trial was t…
Sponsor: Pacific Northwest University of Health Sciences • Aim: Symptom relief
Last updated Jun 27, 2026 12:02 UTC
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Parkinson's sleep study halted early – what we know
Symptom relief Stopped earlyThis study looked at whether the drug safinamide (Xadago) could improve sleep quality in people with Parkinson's disease. Eleven participants took safinamide for 12 weeks while their sleep was measured. The trial was terminated early, so the results are not conclusive.
Phase 4 • Sponsor: Alain Kaelin • Aim: Symptom relief
Last updated Jun 27, 2026 11:00 UTC
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Parkinson's apathy drug trial stalls after just 8 patients
Symptom relief Stopped earlyThis study tested whether istradefylline, a drug already approved for motor symptoms in Parkinson's, could also improve apathy and motivation. Only 8 people enrolled before the trial was terminated early. The results are too limited to draw any conclusions.
Sponsor: Medical University of South Carolina • Aim: Symptom relief
Last updated Jun 27, 2026 09:01 UTC
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Can zapping two brain areas at once stop Parkinson's freezing?
Symptom relief Stopped earlyThis study tested whether a high-dose magnetic stimulation (TMS) targeting both motor and cognitive brain areas could better reduce freezing of gait in people with Parkinson's disease compared to standard low-dose stimulation of just the motor area. The trial planned to enroll 64…
Sponsor: Anhui Medical University • Aim: Symptom relief
Last updated Jun 27, 2026 07:58 UTC
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Parkinson's inhaler trial halted after just 8 patients
Symptom relief Stopped earlyThis study tested an inhaled form of apomorphine (AZ-009) to quickly treat 'OFF' episodes in people with Parkinson's disease—times when symptoms like stiffness or trouble moving return between regular medication doses. The trial was planned for more participants but was terminate…
Phase 2 • Sponsor: Alexza Pharmaceuticals, Inc. • Aim: Symptom relief
Last updated Jun 27, 2026 07:55 UTC
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Scientists probe Brain's consciousness switch during anesthesia
Knowledge-focused Stopped earlyThis study looked at how anesthesia changes brain activity in people with Parkinson's disease or essential tremor who were already scheduled for deep brain stimulation (DBS) surgery. Researchers recorded brain signals during a short period of anesthesia to understand which circui…
Sponsor: University of Texas Southwestern Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:05 UTC
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Brain wave test could spot stubborn depression
Knowledge-focused Stopped earlyThis study aimed to find brain and movement markers in people with a type of depression that doesn't respond to standard antidepressants, called anhedonic depression. Researchers measured brain waves (P300), walking speed, and hand movements in 36 participants. The goal was to id…
Sponsor: University Hospital, Rouen • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:03 UTC
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Treadmill training may slow Parkinson's by fighting inflammation
Knowledge-focused Stopped earlyThis study looked at whether intensive treadmill exercise can improve motor symptoms and reduce inflammation in people with early-stage Parkinson's disease. Researchers measured changes in movement scores and blood markers of nerve damage and inflammation in 30 patients who eithe…
Sponsor: Fondazione Policlinico Universitario Agostino Gemelli IRCCS • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:10 UTC