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A Double-blind Study to Inves...

A Double-blind Study to Investigate Efficacy and Safety of Buntanetap Compared With Placebo in Participants With Early PD

Last Updated: 2025-03-03

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

523 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-03

Study Completion Date

2023-12-04

Brief Summary

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The purpose of this study is to measure safety and efficacy of buntanetap/posiphen capsules compared with placebo capsules in participants with early PD.

Study details include:

* The study duration will be up to 7-8 months.
* The double-blind treatment duration will be up to 6 months.
* There will be 5 in-clinic visits and 7 phone calls

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Detailed Description

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450 early Parkinson's Disease (PD) patients will be randomized to 10mg, 20 mg of buntanetap/posiphen or placebo. They will undergo a Screening Visit, and if they provide informed consent and are considered eligible per the inclusion and exclusion criteria, will proceed to participate in the treatment period. Randomized participants will visit the clinic for the first-time dosing in clinic with administration of 10 mg or 20mg of buntanetap/posiphen or placebo, followed by an at home dosing period of 6 months, with daily administration of 10 mg or 20mg of buntanetap/posiphen or Placebo. Participants will be required to visit clinics 1 month, 2 months, 3 months, and 6 months (end-of-trial), where they will undergo study procedures that include safety assessments (AE and concomitant medication monitoring, 12-lead ECGs, clinical laboratory testing, vital signs assessments, and physical examinations) and psychometric tests (MDS-United Parkinson's Disease Rating Scale (MDS-UPDRS), Clinical Global Impression of Severity (CGIS), Wechsler Adult Intelligence Scales (WAIS), Mini-Mental State Examination (MMSE)) and Participant Global Impression of Change (PGIC). At the end of blood sampling, the subjects will need to stay for a minimum of 1 hour of observation. After all end-of-study procedures are complete, the subject will be discharged to home. A 24-hour follow-up call will occur after all clinical visits to assess the participants current condition and if there are any additional adverse events to report.

Buntanetap/posiphen has shown to improve PD subjects' mobility. MDS-UPDRS sum of score of Part II + Part III and Total score of all four parts will be measured to assess its improvement on PD subjects daily living, mobility and complications. PGIC will also be measured to assess its effect.

Buntanetap/posiphen has shown to reduce inflammation and preserve axonal integrity and synaptic functions as well as neurotoxic proteins in previous Phase 2a studies. In this study we plan to measure plasma glial fibrillary acidic protein (GFAP), neurofilament light (NFL) and potentially TDP43.

Reports of adverse events (AEs) and serious adverse events (SAEs) during exposure to buntanetap/posiphen will be collected to evaluate if there are any significant clinical safety issues for the study population. Extensive clinical and laboratory safety data already exist for buntanetap/posiphen; therefore, these safety measures will be sufficient in the proposed study.

For clinical, functional, and cognitive assessment measures, The subjects will be administered the Hoehn \& Yahr and the MMSE for determination of inclusion into the study. The MDS-UPDRS and PGIC will be administered for subjects' movement and daily function. The Coding subtest from the WAIS 4th edition will serve as a sensitive measure of Central Nervous System (CNS) dysfunction. MMSE will also be measured to assess subjects' cognitive change.

Conditions

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Parkinson's Disease, Idiopathic

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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10 mg buntanetap/posiphen

Buntanetap/posiphen 10 mg oral capsule with daily administration for a period of 6 months

Group Type EXPERIMENTAL