Clinical Trials

Inclusion Criteria:

• Subjects or their Legally Authorized Representative (LAR) must provide written informed consent to the study procedures prior to any study procedures.
• Subjects must have a caregiver/ study partner who in the opinion of the site principal investigator, has contact with the study subject for a sufficient number of hours per week to provide informative responses on the protocol assessments, oversee the administration of study drug, and is willing and able to participate in all clinic visits and some study assessments.
• Men or women 50-85 years of age (inclusive), meeting criteria for probable Dementia with Lewy Bodies (DLB).
• Men willing to comply with acceptable form of contraception or women of non-childbearing.
• Willingness to undergo a lumbar puncture (LP) during the screening period and at the end of the 6-month treatment period.
• Formal education of eight or more years.
• Subjects living at home or in an assisted living facility.
• Subjects shall be generally healthy with mobility, vision and hearing sufficient for compliance with testing procedures.
• Must be able to complete all screening evaluations.

Exclusion Criteria:

• Any neurological condition that may be contributing to cognitive impairment other than related to DLB.
• History of transient ischemic attacks or stroke within 12 months of screening.
• Hospitalization (except for planned procedures) or change of chronic concomitant medication within one month prior to screening.
• Any major psychiatric diagnosis.
• Subjects living in a continuous care nursing facility.
• Contraindication to the MRI examination for any reason.
• Screening MRI of the brain indicative of significant abnormality.
• Clinically significant, advanced or unstable disease that may interfere with outcome evaluations.
• History of cancer within 3 years of screening with the exception of fully excised non-melanoma skin cancers or non-metastatic prostate cancer that has been stable for at least 6 months.
• Seropositive for human immunodeficiency virus (HIV).
• History of acute/chronic hepatitis B or C and/or carriers of hepatitis B.
• Clinically significant abnormalities in screening laboratory tests.
• Disability that may prevent the subject from completing all study requirements.
• Within 4 weeks of screening visit or during the course of the study, concurrent treatment with antipsychotic agents, antiepileptics, centrally active anti-hypertensive drugs, sedatives, opioids, mood stabilizers, or benzodiazepines.
• Any disorder that could interfere with the absorption, distribution, metabolism or excretion of drugs.
• Nootropic drugs except stable Alzheimer's disease (AD) meds.
• Suspected or known drug or alcohol abuse.
• Suspected or known allergy to any components of the study treatments.
• Enrollment in another investigational study or intake of investigational drug within the previous 30 days.
• Any prior exposure to immunomodulators, anti Aβ vaccines, passive immunotherapies for AD and/or exposure to BACE inhibitors within the past 30 days.
• Anticipated use of nonsteroidal anti-inflammatory drugs (NSAIDs) for more than 2 days per week during the study period.
• Contraindication to undergoing an LP.
• Any condition, which in the opinion of the investigator or the sponsor makes the subject unsuitable for inclusion.
• Any vaccination within one week of the baseline visit.

Eligibility last updated 6/7/22. Questions regarding updates should be directed to the study team contact.