Tocotrienols in Parkinson's Disease (PD)

Phase 2

Recruiting

• Conditions: Neuro-Degenerative Disease; Parkinson Disease
• Interventions: Drug: Tocovid Suprabio (HOV-12020); Other: Placebo

• Registration Number: NCT04491383
• Lead Sponsor: National Neuroscience Institute

Brief Summary

A study using Parkinson's disease animal model, transgenic fruit flies, demonstrated the potential of using tocotrienols (HOV-12020) as a therapeutic agent for delaying Parkinsonian motor dysfunctions. The proposed study aims to enrol 100 PD patients in a randomized placebo-controlled trial to investigate the effects of tocotrienols (HOV-12020) in motor and non-motor outcomes. Patients will be given oral tocotrienols (400mg/day) or placebo for 104 weeks. They will be assessed using the standard assessments scales in PD at baseline, Week 52 and Week 104. Neuropsychological evaluation will also be completed at these intervals to monitor progression of cognitive impairment (if any). Additional PD staging using MDSUPDRS (Part III), Hoehn \& Yahr (H\&Y) will be conducted at Week 26 and week 78. Blood samples will be collected to evaluate PD biomarkers and for safety monitoring (liver function, renal function and hematology).

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2020-07-22
• Study First Submitted QC: 2020-07-27
• Study First Posted: 2020-07-29
• Study Start: 2021-04-01
• Status Verified: 2025-05
• Last Update Submitted: 2025-05-19
• Last Update Posted: 2025-05-22
• Primary Completion: 2025-07
• Study Completion: 2025-07-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• Men or women aged between 40 - 90 years (inclusive).
• Able to provide written informed consent and able to comply with study protocol.
• Idiopathic PD of more than 1 years duration from diagnosis. The diagnosis must be confirmed by presence of bradykinesia and at least 1 other cardinal sign (resting tremor, rigidity), without any other known or suspected cause of parkinsonism.
• Hoehn & Yahr => 2 with treatment.
• Patients on PD medication(s) e.g. levodopa, dopamine agonists, amantadine and/or Monoamine oxidase (MAO)-B inhibitors, must be on stable dose, for at least 30 days prior to screening. Medication and dose adjustments are allowed but must be documented.
• Patients on anti-depressant or anxiolytic medication must be on stable dose for at least 90 days prior to screening.
• The patient is willing to abstain from Vitamin E supplements (tocopherols and tocotrienols) and other dietary supplements which contain Vitamin E (tocopherols and tocotrienols) up to 14 days before baseline visit, and throughout the clinical study, unless prescribed by their physician for medical reasons.

Exclusion Criteria

• Any other neurodegenerative disorder, such as Alzheimer's disease, Huntington's disease, or Creutzfeldt - Jakob disease.
• Current, clinically-significant hematological, cardiac, pulmonary, metabolic, neurologic or psychiatric disorders, uncontrolled seizures, untreated hypertension, disorders increasing risk of bleeding (Hemophilia), or any other significant active medical condition which, in the Investigator's opinion, would impact participation in this study.
• History of psychotic symptoms requiring treatment with a neuroleptic medication within the past 12 months.
• History of surgical or invasive intervention for PD (pallidotomy, thalamotomy, deep brain stimulation, etc.)
• Medical history indicating drug-induced parkinsonism (e.g., metoclopramide, flunarizine), metabolic identified neurogenetic disorders (e.g., Wilson's disease), encephalitis, or other atypical Parkinsonian syndromes (e.g., progressive supranuclear palsy, multiple system atrophy).
• History of myocardial infarction within 3 months prior to Screening, or current active angina pectoris, or symptomatic heart failure.
• Known liver disease or liver enzymes (AST, ALT) more than 5 times upper limit normal within 1 month of screening and enrolment.
• eGFR <60 within 1 month of screening and enrolment.
• Current participation in another investigational interventional study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Tocovid Suprabio (HOV-12020)	Tocovid Suprabio (HOV-12020)	200mg, twice 1 day, 12 months
Placebo	Placebo	200mg, twice 1 day, 12 months

Primary Outcome Measures

Name	Time	Method
Mean change from Baseline to Week 104 in Movement Disorder Society-Sponsored Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Score	104 weeks	Score range is 0 to 199, with severity increasing with higher scores.

Secondary Outcome Measures

Name	Time	Method
Mean change from baseline to week 104 in disease severity	104 weeks
Mean change from baseline to week 104 in individual cognitive domain z scores on comprehensive neuropsychological testing mean score change from baseline to week 104 in the MDS-UPDRS score for total score	104 weeks	Severity of disease increases with higher score.
Mean change from Baseline to Week 104 in quality of life, as measured by the Parkinson's Disease Questionnaire (PDQ-39)	104 weeks	Score range is 0 to 100. A lower score will indicate a better quality of life.
Difference proportion of patients with change from Baseline to Week 104, above or equal to the minimal clinically important difference (MCID) of the motor score, as measured by Part II and III subscales of MDS-UPDRS.	104 weeks	Severity of disease increases with higher score.
Mean change in levels of blood-based biomarkers (including total antioxidant status TAS, oxidative stress biomarkers and αsynuclein).	104 weeks
Between treatment difference of type and incidence of Adverse Events (AEs) and Serious AEs (SAEs)	104 weeks
Mean score change from Baseline to Week 104 in the MDS-UPDRS Part II scale	104 weeks	Severity of disease increases with higher score.
Mean score change from Baseline to Week 104 in the Schwab and England Activities of Daily Living (SE-ADL) scale.	104 weeks	The scale uses percentages to assess the difficulties completing daily activities/chores, from 0% to 100%. A higher percentage will indicate a better outcome (i.e. more independence for an individual).

Trial Locations

Locations (2)

National Neuroscience Institute; 🇸🇬 Singapore, Singapore

Singapore General Hospital; 🇸🇬 Singapore, Singapore