Non-interventional, Retrospective, Multi-center Study to Evaluate Non-motor Symptoms in Advanced Parkinson Disease (PD) Patients Already Treated With Rotigotine

Inclusion Criteria: To be eligible to participate in this study, all of the following criteria must be met: * Male and female ambulatory patients with Parkinson's disease diagnosis (as per the London Brain Bank diagnosis criteria) ≥6 months ago * Patient aged 30 years or older at the time of Parkinson's disease diagnosis * Patients who were under treatment with Rotigotine following routine clinical practice, either alone or in combination with Levodopa, and in an advanced PD dosage (≥ 8 mg/ 24 h) for at least the previous 6 months * Patients under treatment with Rotigotine (≥ 8 mg/ 24 h) who were assessed twice of NMS by means of the PDNMS-Q 6 months apart * Patients are currently informed and have been given enough time and opportunity to think about participation (data collection) in the study and have given written informed consent Exclusion Criteria: Patients are not permitted to enroll in the study if any of the following criteria is met during the previous 6 months: * Patients have other Parkinsonian syndrome different than Parkinson´s disease * Patients have a history of Pallidotomy, Thalamotomy, Deep Brain Stimulation or Fetal Tissue Transplant * Patients with Dementia, active Hallucinations or active or treated Psychosis * Patients with any other neurological / psychological disorder * Patients who had received Central Nervous System (CNS) active therapy (e.g. sedatives, hypnotics, anti-depressants, anxiolytics, atypical neuroleptics, etc)