| Eligibility |
Inclusion Criteria:
1. the subject or his legal representative understands and is willing to participate in
this clinical study and voluntarily signs and dates the informed consent form;
2. in the judgment of the investigator, the subject or his legal representative is
considered trustworthy and able to comply with the study protocol, visit plan or
receive the study drug as required;
3. Subjects aged = 30 years at screening (Visit 1), male or female;
4. Meet the UK Brain Bank diagnostic criteria for essential Parkinson's disease, duration
of illness = 5 years, the diagnosis is based on the main sign - bradykinesia, plus at
least one of the following symptoms: resting tremor, rigidity or postural reflex
disorders, and no other known or suspected cause of Parkinson's disease;
5. Hoehn-Yahr stage = 3 (excluding stage 0) in the "on" state;
6. Mini-Mental State Examination (MMSE) = 25 points;
7. At baseline (Visit 2), the Unified Parkinson's Disease Rating Scale (UPDRS) motor
score (Part III) in the "on" state is = 10;
8. if the subject is receiving anticholinergic drugs (e.g., methenamine, diphenhydramine,
diethylpromethazine, procyclidine, and biperiden), monoamine oxidase B (MAO-B)
inhibitors (e.g., selegiline, rasagiline), N-methyl-d-aspartate (NMDA) antagonists
(e.g., amantadine), the dose must be stable for at least 28 days before baseline
(Visit 2), and the dose must be maintained during the study;
9. Women of childbearing age (do not meet any of the following conditions: cessation of
menstruation for = 12 months; or underwent hysterectomy or oophorectomy; or have
medically confirmed ovarian failure) or male subjects agree to take reliable
contraception (oral contraceptives, use of condoms, abstinence, etc.) throughout the
study (screening visit to the end of the study), and screening (Visit 1) and baseline
(Visit 2), women of childbearing age pregnancy test results are negative.
Exclusion Criteria:
1. history of pallidotomy, thalamic lesioning, deep brain stimulation or fetal tissue
transplantation;
2. suffering from dementia, active mental illness or hallucinations, major depression;
3. Patients receiving dopamine agonist therapy within 28 days before baseline (Visit 2);
4. received levodopa preparations (containing levodopa compound preparations) within 28
days before baseline (Visit 2);
5. received any of the following drugs within 28 days before baseline (Visit 2):
amphetamine, metoclopramide, a-methyldopa, anti-schizophrenia drugs, monoamine oxidase
A (MAO-A) inhibitors, reserpine, methylphenidate, cloth;
6. Receiving central nervous system active drug treatment (such as sedative hypnotics,
antidepressants, anxiolytics), but excluding the baseline (Visit 2) has remained
stable for at least 28 days, and may remain stable during the study;
7. Atypical Parkinson's disease symptoms caused by taking drugs (such as metoclopramide,
flunarizine), nervous system inherited metabolic diseases (such as Wilson's disease),
encephalitis, cerebrovascular disease or degenerative diseases (such as progressive
supranuclear palsy);
8. History of epilepsy, or stroke or transient ischemic attack within 1 year before
screening (Visit 1);
9. intolerant or allergic to the following antiemetics, such as domperidone,
trimethobenzamide, ondansetron, tropisetron, granisetron and gronium;
10. Clinically significant liver dysfunction, defined as total bilirubin > 1.5 times the
upper limit of the reference range or alanine aminotransferase (ALT) or aspartate
aminotransferase (AST) > 2 times the upper limit of the reference range;
11. Clinically significant renal dysfunction (serum creatinine > 2.0 mg/dL [> 177
µmol/L]);
12. uncontrolled or significant cardiovascular disease, including New York Heart
Association (NYHA) class II or higher congestive heart failure, unstable angina,
myocardial infarction within 6 months before baseline (Visit 2), or arrhythmia
requiring treatment at screening (Visit 1);
13. At screening (Visit 1) and baseline (Visit 2), QTc interval: male > 470 ms, female >
480 ms;
14. History of symptomatic orthostatic hypotension; or a systolic blood pressure decrease
of = 20 mmHg or a diastolic blood pressure decrease of = 10 mmHg at 1 or 3 minutes
from a recumbent to an upright position at screening (Visit 1) and baseline (Visit 2);
or a supine systolic blood pressure < 105 mmHg at screening (Visit 1) and baseline
(Visit 2);
15. History of suicide attempt (including actual attempts, interrupted attempts, or failed
attempts) or suicidal ideation in the past 6 months, defined as "yes" to question 4 or
5 on the Columbia-Suicide Severity Rating Scale (C-SSRS) at screening (Visit 1);
16. History of narcolepsy;
17. History of alcoholism, drug abuse, or drug abuse within 5 years before screening
(Visit 1), defined as alcohol consumption of more than 14 units of alcohol per week (1
unit = 360 ml of beer or 45 ml of spirits with an alcohol content of 40% or 150 ml of
wine);
18. Patients with malignant tumors within 5 years before screening (Visit 1), except for
adequately treated cervical carcinoma in situ, basal cell or squamous cell carcinoma
of the skin, local prostate cancer after radical surgery, and intraductal carcinoma in
situ after radical surgery;
19. Pregnant or lactating women;
20. Previous participation in the rotigotine test can not tolerate or poor efficacy;
Allergic constitution or known allergy to rotigotine or rotigotine microsphere
preparation components;
21. Allergic constitution or known allergy to rotigotine or rotigotine microsphere
preparation components;
22. Participated in other drug clinical trials within 3 months before screening (Visit 1);
23. have other clinically significant medical conditions, psychiatric conditions or
laboratory abnormalities that may interfere with the ability of the subject to
participate in this study as judged by the investigator.
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