Parkinson's Disease

Why trials studying Parkinson's Disease stopped, in this sample of ClinicalTrials.gov.

18 stopped trials with a clear reason; 83% ended for non-scientific reasons.

Trials

• Terazosin And Metabolic Engagement in Parkinson's Disease
  NCT07288450 · WITHDRAWN · funding business
  “Not Funded”
• Attentional Performance in Parkinson Disease
  NCT04428931 · WITHDRAWN · logistics pi
  “The pandemic caused a delay in starting the study; PI is leaving.”
• A Study to Evaluate the Safety and Tolerability of ABBV-0805 in Patients With Parkinson's Disease
  NCT04127695 · WITHDRAWN · funding business
  “Strategic considerations”
• Induction and Recognition of Emotions
  NCT04353947 · WITHDRAWN · logistics pi
  “COVID 19”
• Study to Evaluate Safety and Daytime Sedation in Subjects With Parkinson's Disease With Neuropsychiatric Symptoms Treated With Pimavanserin or Low-Dose Quetiapine
  NCT04164758 · TERMINATED · funding business
  “Study enrollment impacted by COVID-19 pandemic and Sponsor terminated for business reasons”
• A Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of BIIB054 in Japanese Participants With Parkinson's Disease
  NCT03716570 · TERMINATED · futility
  “Affiliated study NCT03318523 did not meet its primary outcome measure of change from baseline measured by Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) and did not demonstrate efficacy on secondary outcome measures”
• A Multidisciplinary Approach to Manage Gait Difficulty in Parkinson Patients
  NCT02857244 · WITHDRAWN · regulatory
  “Site did not obtain LIRB approval due to medication usage.”
• Deep Brain Stimulation of the nbM to Treat Mild Cognitive Impairment in Parkinson's Disease
  NCT02924194 · TERMINATED · slow accrual
  “The study was halted prematurely due to lack of interested participants.”
• Outpatient Physical Therapy Intervention in Subjects With Parkinson's Disease Currently Using APOKYN®
  NCT02549573 · TERMINATED · slow accrual
  “Subject enrollment is unsatisfactory”
• Buspirone, in Combination With Amantadine, for the Treatment of Levodopa-induced Dyskinesia
  NCT02589340 · TERMINATED · slow accrual
  “Low enrollment”
• Trial Comparing Functional Outcomes of Awake vs. Asleep Deep Brain Stimulation (DBS) for Parkinson's Disease
  NCT02401308 · TERMINATED · slow accrual
  “Lack of subject enrollment.”
• Study on Tolerability of Repeat i.c.v. Administration of sNN0031 Infusion Solution in Patients With PD
  NCT02408562 · TERMINATED · funding business
  “Issues with development and supply of infusion system for delivery of IMP. Prolonged approval process for the clinical study sNN0031-004.”
• Perceptual Decision Making Under Conditions of Visual Uncertainty
  NCT01845883 · WITHDRAWN · logistics pi
  “Initiating PI has left the institution, and no participants have been enrolled for the interventional trial.”
• Effect of Lower Extremity Ankle Foot Orthoses in Parkinson's Disease
  NCT01798927 · TERMINATED · other
  “Modifications are being made to protocol”
• Molecular Analysis of Human Neural Stem Cells
  NCT01329926 · WITHDRAWN · funding business
  “insufficient funding”
• Carbidopa/Levodopa Versus Carbidopa/Levodopa/Entacapone on Markers of Event Related Potentials (ERPs) in Patients With Idiopathic Parkinson's Disease (PD) and End-of-dose Wearing Off
  NCT00601978 · WITHDRAWN · funding business
  “Business decision brand strategy; no patients enrolled”
• NET-PD LS-1 Creatine in Parkinson's Disease
  NCT00449865 · TERMINATED · futility
  “Futility”
• Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease
  NCT00208611 · TERMINATED · funding business
  “Funding ended and enrollment not completed within a certain time period”

Reasons are labeled automatically and are unverified. See the methodology. This is research information, not medical advice. Search the full database.