Safety, Tolerability, Pharmacokinetics and Efficacy Study of Radotinib in Parkinson's Disease

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age40-80
SponsorIl-Yang Pharm. Co., Ltd.

About this trial

This is a safety, tolerability, pharmacokinetic and efficacy study in subjects with Parkinson's disease

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Male and Female from 40 to 80 years old;

Diagnosed with "Clinically Probable Parkinson's Disease" according to the MDS clinical diagnostic criteria, with documented onset of symptoms per treating physician's records within three years of the screening visit;

Positive DAT-scan (e.g. a striatal dopamine transporter deficit on dopamine transporter imaging by DaT-SPECT, characterized by crescent-shaped areas of asymmetrical aspect, or of symmetrical aspect but of uneven intensity, between the right and the left brain hemisphere) confirmed by local reading;

Hoehn & Yahr stage ≤ 2.5;

Disqualifiers

Atypical Parkinsonism or drug-induced Parkinsonism;

Current, or within 60 days of screening, use of any prescription, investigational, or over the counter medication for the symptomatic treatment of PD or to slow the progression of PD.

Prior use of dopaminergic therapy (e.g., levodopa, dopamine agonist, amantadine, rasagiline) for 30 or more days any time in the past;

Cognitive impairment (MMSE ≤ 24);

Trial design

Design model

Parallel

Treatments tested in this trial

  • Radotinib HCl 50 mg

    Drug

    Enrolled subject will continue to administer Radotinib 50mg/day, 100mg/day, 150mg/day, 200mg/day, depending on the dose level once daily for 6 months.

  • Placebo

    Drug

    Placebo

Treatment groups

40 Participants
are divided into 2 treatment groups
Group A: Placebo: Dose escalationPlacebo comparator 1 intervention
Group B: Radotinib HCl: Dose escalationExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Evaluation of safety parameters: Adverse Events

Incidence and severity of treatment emergent AEs

Time frame
12 months after dose administration

Secondary outcomes

1

Pharmacokinetics assessments of Radotinib HCl: Cmax

The maximum (peak) observed drug concentration after dose administration

Time frame
14 days after dose administration
2

Pharmacokinetics assessments of Radotinib HCl: Tmax

The time to reach maximum (peak) drug concentration after dose administration

Time frame
14 days after dose administration
3

Pharmacokinetics assessments of Radotinib HCl: Ctrough

Trough plasma concentration (measured concentration at the end of a dosing interval at steady state)

Time frame
14 days after dose administration
4

Pharmacokinetics assessments of Radotinib HCl: AUCt

Area under the plasma concentration-time curve from time zero to time t

Time frame
14 days after dose administration

Other outcomes

1

Brain DaT SPECT to measure dopamine neurons and nerve terminals

DaTscan is a specific type of single-photon emission computed tomography (SPECT) imaging technique that helps visualize dopamine transporter in the brain

Time frame
12 months
2

Concentration of α-synuclein in CSF

Quantification of α-synuclein concentration in CSF

Time frame
6 months
3

Concentration of Tau and phospho-Tau (p-181) in CSF

Quantification of Tau and phospho-Tau (p-181) concentration in CSF

Time frame
6 months
4

Concentration of β-amyloid peptide 1-42 in CSF

Quantification of β-amyloid peptide 1-42 concentration in CSF

Time frame
6 months

Sponsors and contacts

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