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Estimates of the Short-term Efficacy of Talineuren (TLN) and Placebo in Patients With Parkinson Disease

I

InnoMedica

Status and phase

Not yet enrolling
Phase 2

Conditions

Parkinson Disease

Treatments

Drug: Talineuren
Drug: Placebo

Study type

Interventional

Funder types

Industry

Identifiers

NCT06431971
LIBRA (TLN/PD/2)

Details and patient eligibility

About

This study is double-blinded placebo controlled to estimate the short-term efficacy of Talineuren. The investigational Medicinal Product (IMP) is administrated 18 times intravenously as an add-on therapy to the standard of care Parkinson medication.

Talineuren is a liposomal formulation containing GM1 (monosialotetrahexosylganglioside) as the pharmacological active substance.

The results of this pilot study are essential for the sample size calculation of a subsequent larger phase II/III trial.

Full description

The ganglioside lipid GM1 (monosialotetrahexosylganglioside) has attracted attention in scientific literature as a promising neuroprotective agent. Research suggests that GM1 ganglioside holds promise not only in the treatment of neurodegenerative disorders like Parkinson disease (PD) and Alzheimer's disease but also in promoting nerve regeneration post-injury. Furthermore, investigations into its potential to improve cognitive function and memory underscore its versatility as a therapeutic agent. Numerous clinical studies have demonstrated its therapeutic potential in treating (PD) patients.

Talineuren (TLN) represents a novel approach to harnessing the therapeutic benefits of GM1. TLN is a liposomal formulation, comprising GM1 as its pharmacologically active ingredient, which is expected to cross the blood-brain barrier more efficiently as free GM1 and therefore is able to deliver more GM1 to the brain. This innovative composition is designed to optimize the neuroprotective effects of GM1.

Study Description:

This study is designed as a double-blinded, placebo-controlled trial to evaluate the short-term efficacy of TLN in PD management. The investigational Medicinal Product (IMP), TLN, is weekly intravenously administered 18 times as an add-on therapy alongside patients' current standard-of-care PD medication. Talineuren, encapsulating GM1 within liposomes, is anticipated to facilitate enhanced delivery and bioavailability of the neuroprotective agent, GM1.

Objectives:

The primary objective is to obtain statistical estimates of change from baseline and variance for TLN and placebo and to compare these between groups for MDS-UPDRS part III score in the "off" medication state (i.e. Levodopa challenge test (LCT); motor symptoms evaluated by physician).

Secondary objectives are to obtain the change from baseline and variance of TLN and placebo and compare these between the groups for :

  • MDS-UPDRS total score (part I + part II + part III "off" + part IV)
  • MDS-UPDRS part I (non-motor symptoms in daily life)
  • MDS-UPDRS part II (motor symptoms in daily life)
  • MDS-UPDRS part III "on medication"
  • MDS-UPDRS total part IV (motor complications)
  • Proportion of patients meeting or exceeding the minimum clinically important difference (MCID) in motor and non-motor symptoms (MDS-UPDRS) and quality of life (PDQ-39) over time
  • Quality of life (PDQ-39)
  • Mental condition (MoCA)
  • Parkinson medication (LEDD)

Research objectives (biomarkers):

-Assessment of literature-described biomarkers (prognostic, predictive, monitoring and/or response biomarkers) pre- and post-TLN or placebo intervention.

Through evaluation and statistical analysis, this study seeks to elucidate the therapeutic potential of TLN in addressing the multifaceted challenges of Parkinson's disease. By providing insights into treatment efficacy, medication usage, symptom management, and quality of life improvements, our findings aim to inform future advancements in PD management and enhance patient care.

The results of this pilot study are essential for the sample size calculation of a subsequent larger phase II/III trial.

Enrollment

40 estimated patients

Sex

All

Ages

30 to 85 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Informed consent as documented by signature.
  2. Male and female subjects, aged 30 to 85 years.
  3. Confirmed PD according to British brain bank criteria.
  4. Hoehn and Yahr Stage 0 - 2.5 on medication.
  5. Stable dopaminergic PD treatment (including DBS) for a month at least.
  6. Absence of dementia confirmed by cognitive testing (MoCA ≥24).

Exclusion criteria

  1. Previous treatment with Talineuren (i.e. participants from NEON trial are not allowed)

  2. Contraindications to the class of drugs under study, e.g., known hypersensitivity or allergy to class of drugs or the investigational products.

  3. Women who are pregnant or breast feeding, or planning to become pregnant during the course of the trial or in the 12 weeks following the trial.

  4. Lack of safe contraception, defined as:

    • Female participants of childbearing potential, not willing to use double method of contraception (hormonal and mechanical) for the entire study duration.

    Note: Female participants who are surgically sterilised / hysterectomised or post-menopausal for longer than 2 years are not considered as being of child bearing potential.

    • Male participants, not using and not willing to use a medically reliable method of contraception for the entire study duration, such as condoms or who are not using any other method considered sufficiently reliable by the investigator in individual cases.
  5. Other clinically significant concomitant diseases states (e.g., renal failure, hepatic dysfunction, cardiovascular disease etc.) that is are not under stable control.

  6. Known or suspected non-compliance, drug or alcohol abuse.

  7. Inability to follow the procedures of the trial, e.g., due to language problems, psychological disorders etc. of the participant.

  8. Participation in another trial with an investigational drug within the 30 days preceding and during the present trial.

  9. Enrolment of the investigator, his/her family members, employees and other dependent persons.

  10. Subject has an atypical parkinsonian syndrome or secondary parkinsonism.

  11. Patients with comorbidity that may interfere with the course of the trial.

  12. Patients who are not considered to be eligible to participate in clinical trial by the investigator.

  13. Patients in adjustment of deep brain stimulation (DBS) parameters

  14. Patients with known impaired granulopoiesis

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

40 participants in 2 patient groups, including a placebo group

Talineuren
Experimental group
Description:
Participants receive standard of care PD treatment + 720 mg of Talineuren i.v. weekly for 18 infusions (18 weeks).
Treatment:
Drug: Talineuren
Placebo
Placebo Comparator group
Description:
Participants receive standard of care PD treatment + placebo (0.9% NaCl) i.v. weekly for 18 infusions (18 weeks).
Treatment:
Drug: Placebo

Trial contacts and locations

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Data sourced from clinicaltrials.gov

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