A Study to Test the Safety, Tolerability, and Pharmacokinetics of UCB0599 in Healthy Study Participants and Patients With Parkinson's Disease (PD)

Study Overview
=================
Brief Summary
-----------------
The purpose of the study is to evaluate the safety and tolerability after administration of multiple doses and the pharmacokinetics (PK) of single and multiple doses of UCB0599 in healthy study participants and participants with Parkinson's Disease (PD).

Official Title
-----------------
A Double-Blind, Placebo-Controlled, Multiple Dose Study to Evaluate Safety, Tolerability, and Pharmacokinetics of UCB0599 in Healthy Study Participants and Patients With Parkinson's Disease (PD)

Conditions
-----------------
Parkinson's Disease

Intervention / Treatment
-----------------
* Drug: UCB0599
* Drug: Placebo


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Participant must be 40 to 80 years of age inclusive, at the time of signing the informed consent Study participant with Parkinson's disease (PD) must have a clinical diagnosis of PD. The following diagnostic criteria must be met: Bradykinesia AND at least ONE of the following: muscular rigidity or resting tremor Study participant with PD must have a historic brain image (magnetic resonance imaging (MRI) or computerized tomography (CT) obtained at any point from the time of clinical diagnosis to the time of Screening that does not show any brain abnormalities that could cause symptomatic Parkinsonism Study participant must have a Hoehn and Yahr Stage: 1 to 3 Study participant must be either untreated, or treated with a stable regimen (at least 4 weeks prior to Baseline Visit) of antiparkinsonian drugs and is expected to remain on this regimen for the duration of the study Body weight >50 kg (110 lbs) and body mass index (BMI) within the range 18 to 32 kg/m^2 (inclusive) Exclusion Criteria: Study participant has a known hypersensitivity to any components of the study medication or comparative drugs as stated in this protocol Study participant has a known relevant allergy, a pre-existing history of a relevant allergic condition, or a predisposition for an allergic reaction (ie, total immunoglobulin E [IgE] value above normal range at Screening); this study participant's inclusion should be discussed with the Medical Monitor Study participant has a history of levodopa-induced motor fluctuations or dyskinesia expected to interfere with his/her ability to participate in the study Study participant has ongoing significant inflammatory gastrointestinal disorders and/or clinical signs of significant gastrointestinal problems at Screening Study participant has a historic brain scan (MRI scan or CT scan) or an MRI scan performed at Screening indicative of a clinically significant abnormality Study participant has a diagnosis of a significant Central nervous system (CNS) disease other than PD or history of epilepsy or seizure disorder other than febrile seizures as a child Abnormalities in lumbar spine previously known or determined by a screening lumbar x-ray (if conducted) History of clinically significant back pain, back pathology, and/or back injury (for example, degenerative disease, spinal deformity, or spinal surgery) that may predispose participant to complications or technical difficulty with lumbar puncture Evidence or history of significant active bleeding or coagulation disorder or use of drugs that affect coagulation or platelet function within 14 days prior to lumbar catheter insertion Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) Study participant has a history or present condition of respiratory or cardiovascular disorders at Screening (eg, cardiac insufficiency, coronary heart disease, uncontrolled hypertension, arrhythmia, tachyarrhythmia, or myocardial infarction) which is considered clinically significant by the Investigator Study participant has medical history or current diagnosis of diabetes Study participant has clinical significant electrocardiogram (ECG) abnormality at Screening, in the opinion of the Investigator Study participant has had prior treatment with an investigational vaccine for PD (including active immunization or passive immunotherapy with monoclonal antibodies) Study participant has had prior surgical treatment of PD involving intracranial surgery or implantation of a device (including deep brain stimulation) or duodopa

Ages Eligible for Study
-----------------
Minimum Age: 40 Years
Maximum Age: 80 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Sequential Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cohort 1 - UCB0599<br>Participants will be randomized to receive a predefined dosage of UCB0599. | Drug: UCB0599<br>* Participants will receive an assigned dosage regimen of UCB0599 during the Treatment Period.<br>|
| Experimental: Cohort 2 - UCB0599<br>Participants will be randomized to receive a predefined dosage of UCB0599. | Drug: UCB0599<br>* Participants will receive an assigned dosage regimen of UCB0599 during the Treatment Period.<br>|
| Placebo Comparator: Cohort 1 - Placebo<br>Participants will be randomized to receive a predefined dosage of Placebo. | Drug: Placebo<br>* Participants will receive an assigned dosage regimen of Placebo during the Treatment Period to maintain the blinding.<br>|
| Placebo Comparator: Cohort 2 - Placebo<br>Participants will be randomized to receive a predefined dosage of Placebo. | Drug: Placebo<br>* Participants will receive an assigned dosage regimen of Placebo during the Treatment Period to maintain the blinding.<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Treatment-Emergent Adverse Avents (TEAEs) from Baseline to End of Study visit | An Adverse Event (AE) is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product. | From Baseline to End of study visit (up to Week 7) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum observed plasma concentration (Cmax) in healthy participants on Day 1 | Cmax: Maximum observed plasma concentration | Day 1: Predose up to 12 hours post dose | 
| Maximum observed plasma concentration (Cmax) in healthy participants on Day 28 | Cmax: Maximum observed plasma concentration | Day 28: Predose up to 24 hours post dose | 
| Time to maximum observed plasma concentration (tmax) in healthy participants on Day 1 | Tmax: Time of observed Cmax | Day 1: Predose up to 12 hours post dose | 
| Time to maximum observed plasma concentration (tmax) in healthy participants on Day 28 | Tmax: Time of observed Cmax | Day 28: Predose up to 24 hours post dose | 
| Area under the concentration - time curve (AUC(0-12h)) from time 0 to 12 hours in healthy participants on Day 1 | AUC(0-12h): Area under the curve from time 0 to 12 hours | Day 1: Predose up to 12 hours post dose | 
| Area under the concentration-time curve for the dosing interval (AUCtau) in healthy participants on Day 28 | AUCtau: Area under the concentration-time curve for the dosing interval at steady state | Day 28: Predose up to 24 hours post dose | 
| Maximum observed plasma concentration (Cmax) in patients on Day 1 | Cmax: Maximum observed plasma concentration | Day 1: Predose up to 12 hours post dose | 
| Maximum observed plasma concentration (Cmax) in patients on Day 28 | Cmax: Maximum observed plasma concentration | Day 28: Predose up to 24 hours post dose | 
| Time to maximum observed plasma concentration (tmax) in patients on Day 1 | Tmax: Time of observed Cmax | Day 1: Predose up to 12 hours post dose | 
| Time to maximum observed plasma concentration (tmax) in patients on Day 28 | Tmax: Time of observed Cmax | Day 28: Predose up to 24 hours post dose | 
| Area under the concentration - time curve (AUC(0-12h)) from time 0 to 12 hours in patients on Day 1 | AUC(0-12h): Area under the curve from time 0 to 12 hours | Day 1: Predose up to 12 hours post dose | 
| Area under the concentration-time curve for the dosing interval (AUCtau) in patients on Day 28 | AUCtau: Area under the concentration-time curve for the dosing interval at steady state | Day 28: Predose up to 24 hours post dose | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Healthy participants, UCB0599, Parkinson's Disease, Phase 1 study, Patients