Testing TB006 for improving motor function in Parkinson's Disease

A Phase 2a, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of the Safety and Efficacy of TB006 in Participants With Parkinson's Disease

PHASE2 · TrueBinding, Inc. · NCT06773962

This study is testing if a new treatment called TB006 can help improve movement in people with early-stage Parkinson's Disease who are already feeling better with their current medication.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment62 (estimated)
Ages50 Years to 80 Years
SexAll
SponsorTrueBinding, Inc. (industry)
Locations6 sites (Aliso Viejo, California and 5 other locations)
Trial IDNCT06773962 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the efficacy and safety of TB006, a monoclonal antibody, in participants diagnosed with Parkinson's Disease (PD). The study aims to determine if TB006 can enhance motor function in early-stage PD patients who have shown improvement with levodopa treatment. Participants will be randomly assigned to receive either TB006 or a placebo, and their progress will be monitored throughout the trial. The study is designed to gather data on both the therapeutic effects and safety profile of TB006.

Who should consider this trial

Good fit: Ideal candidates are individuals diagnosed with early-stage Parkinson's Disease who have mild symptoms and are currently on levodopa treatment.

Not a fit: Patients with advanced Parkinson's Disease or those with significant health issues that could interfere with participation may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve motor function and quality of life for patients with Parkinson's Disease.

How similar studies have performed: While there have been studies on monoclonal antibodies for various conditions, this specific approach for Parkinson's Disease is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participants voluntarily agree to participate in this study and sign an Institutional Review Board (IRB)-approved informed consent form (ICF) prior to performing any of the screening procedures.

   Parkinson's Disease Related Criteria:
2. Diagnosis of Parkinson's disease (PD) with motor symptom improvement from levodopa, if applicable.
3. Less than 5 years from the initial PD diagnosis, at the time of ICF.
4. Early-stage PD, with mild symptoms based on standard clinical staging in OFF state.
5. Participants who are on immediate-release levodopa-carbidopa/benserazide.

   Other Health Related Criteria
6. No active cancer, unless in remission for ≥10 years without ongoing treatment, except fully removed basal cell carcinoma.
7. Free of significant health issues that might interfere with study participation.

   Other Criteria/Social Circumstances
8. Negative screening for illegal drugs (excluding cannabis), with willingness to abstain during the study and avoid cannabis or alcohol effects during visits.

Exclusion Criteria:

Parkinsons's Disease Related Criteria

1. History of sudden, unexpected PD medication OFF episodes.
2. Severe motor complications or disabling symptoms that may impact study involvement.

   Other Health Related Criteria
3. Any condition or health concern deemed a safety risk or likely to interfere with study results.
4. Severe psychiatric disorders, including psychosis or substance addiction.
5. Allergies or sensitivities to specific study-related treatments or substances.
6. Any prior history of a severe infusion reaction.

   Other Criteria/Social Circumstances
7. Pregnancy, breastfeeding, or plans for pregnancy or ova donation during or shortly after the study.
8. Recent use of investigational drugs or therapeutic antibodies.

Where this trial is running

Aliso Viejo, California and 5 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Parkinson's Disease, PD, TB006, Monoclonal Antibody

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.