Study to Evaluate the Efficacy and Safety of Staccato Apomorphine (AZ-009) in Patients With Parkinson's Disease Experiencing OFF Episodes

1. Previous significant complications from oral dopamine agonist therapy including hospitalization, hallucinations, or any other clinically relevant neuropsychiatric adverse event. Known intolerance to apomorphine.

2. Inhaled or sublingual apomorphine or inhaled l-dopa treatments during the trial.

3. Expected use of Apokyn or Kynmobi during the titration and treatment phase of the study.

4. Participation in earlier AZ-009 clinical trials.

5. Patients with suicidal behavior occurring within the past year or who pose a current suicide risk as determined by the PI or as confirmed at the first Screening Visit, the L-dopa challenge Visit (Visit -2) or Day 1 (Visit 3) by affirmative answer on items 4 or 5 on the Columbia-Suicide Severity Rating Scale (C-SSRS).

6. Symptomatic clinically relevant and medically uncontrolled orthostatic hypotension or systolic blood pressure less than 100 mmHg at Screening or Baseline. Orthostatic hypotension is defined as a decrease in systolic blood pressure of 20 mm Hg \> or a decrease in diastolic blood pressure \> 10 mm Hg, or increase in heart rate \> 20 BPM, when standing compared with blood pressure from the supine position.

7. Any clinically significant or unstable medical or psychiatric condition, as determined by the PI, based on a medical evaluation including history, physical examination, vital signs, electrocardiograms (ECGs), and laboratory tests assessed at the screening visit and prior to the first dose of study drug that could compromise the participant's safety or interfere with the completion of this protocol. A patient with a non-clinically significant abnormality or laboratory parameters outside the reference range may continue with the approval of the Investigator.

8. Subjects with a prolonged QT interval corrected for heart rate according to Fridericia's formula (QTcF) of \>450 ms for male and \>470 ms for female at screening or directly prior to first dosing, or a history of long QT syndrome. Also subjects with a PR interval \> 220 msec or QRS duration \> 120 msec at screening.

9. Currently taking, or may need treatment with, nitroglycerine

10. Any documented active or suspected or history of malignancy within 5 years prior to Visit 1, except appropriately treated basal cell carcinoma.

11. Active hallucinations or history of hallucinations in the past 3 months. Any significant medical condition, psychiatric illness, current major uncontrolled depression or bipolar disease, or history of depression that could, in the investigator's opinion, compromise the subject's safety or interfere with the completion of this protocol.

12. Dementia indicated by MMSE \<24 at Screening.

13. History of clinically significant central nervous system (e.g., seizures), cardiac, pulmonary (e.g., asthma, COPD), metabolic, renal, hepatic, or gastrointestinal (GI) conditions including gastric bypass or other weight loss surgical procedure; or history of such conditions that, in the opinion of the investigator, may place the subject at an unacceptable risk as a participant in this trial, may interfere with the interpretation of safety and/or tolerability data obtained in the trial, or may interfere with the absorption, distribution, metabolism, or excretion of the study drugs.

14. Screening FEV1 \< 50% of predicted or FEV1/FVC ratio \< 60% in the ON state at Visit 1.

15. Any condition including the presence of laboratory abnormalities, which according to the investigator places the subject at unacceptable risk if he/she were to participate in the study.

16. Aspartate transaminase (AST), alanine transaminase (ALT), gamma-glutamyl transferase (GGT), serum creatinine, or total bilirubin \> 1.5 x upper limit of normal (ULN) at screening or prior to the first dose of study drug. An exception may be made for suspected Gilbert's syndrome. These laboratory tests may be repeated once, if they are abnormal on first screening, and if there is a medical reason to believe the results may be inaccurate. If the repeat test is within the reference range, the subject may be included only if the investigator considers that the previous finding will not compromise the subject's safety and will not interfere with the interpretation of safety data.

17. Positive blood screen for human immunodeficiency virus (HIV antibody), hepatitis B virus surface antigen, or hepatitis C virus antibody at screening.

18. History of drug or alcohol abuse within 6 months of screening.

19. Positive drug screen at baseline. May not be exclusionary with a prescription.

20. History of any smoking/vaping (tobacco, cannabinoids) or any tobacco product use within 3 months prior to the study.

21. Participation in a clinical trial and receipt of an investigational medication or a new chemical entity within 30 days, 5 half-lives, if known, or twice the duration of the biological effect of any medication (whichever is longer) prior to the first dose of current study drug.

22. Use of medication that is inhibitor or inducer of CYP450-3A4/5 within 3 days of dosing.

23. Donation of blood, plasma or other blood products or blood collection in excess of 470 mL within 8 weeks prior to dosing.

24. Known sensitivity to any of the study drugs or components thereof, or a history of medication allergy or other allergy that, in the opinion of the investigator, contraindicates study participation.

25. Major surgery within 4 weeks of screening that could interfere with, or for which the treatment might interfere with, the conduct of the study, or that would pose an unacceptable risk to the subject in the opinion of the investigator.

26. Use of 5HT3 antagonists, including antiemetics (e.g., ondansetron, granisetron, dolasetron, palonosetron) and alosetron during the trial.

27. Medications to treat gastroparesis (Antiemetics) or any dopamine antagonist.

What this study is about