Allogeneic Human Mesenchymal Stem Cells for Alzheimer's Disease

Stemedica Cell Technologies

Status and phase: Enrolling; Phase 2

Conditions: Alzheimer Dementia

Treatments: Drug: Human Mesenchymal Stem Cells and Lactated Riunger's Solution; Other: Placebo

Study type: Interventional

Funder types: Industry; Other

Identifiers

NCT02833792

STEM105-M-AD

Details and patient eligibility

About

STUDY OBJECTIVES

Primary:

To assess the safety and tolerability of ischemia-tolerant allogeneic human mesenchymal stem cells (hMSCs) manufactured by Stemedica versus placebo administered intravenously to subjects with mild to moderate dementia due to Alzheimer's disease.

Secondary:

To assess the preliminary efficacy of hMSCs versus placebo in subjects with Alzheimer's-related dementia, as evidenced by neurologic, functional, and psychiatric endpoints.

Full description

This is a Phase IIa multi-center, randomized, single-blind, placebo-controlled, crossover study in subjects with mild to moderate dementia due to Alzheimer's disease. Only the subject and their caregiver will be blinded to the study treatment. The study will consist of two cohorts of subjects (20 subjects per cohort), randomized in a 1:1 allocation to receive active study drug or placebo. Cohort 1 will receive a single intravenous dose of hMSCs of 1.5 million cells per kilogram body weight on their Study Day 1, and Cohort 2 will receive equal volume of Lactated Ringer's Solution on their Study Day 1. At the six-month time point for each subject after their first infusion, Cohort 1 will receive a single intravenous dose of Lactated Ringer's Solution and Cohort 2 will receive a single intravenous dose of hMSCs at 1.5 million cells per kilogram of the subject's body weight. Approximately 40 subjects will be enrolled in this study. An independent Data and Safety Monitoring Board will conduct periodic safety reviews.

Enrollment: 40 estimated patients

Sex: All

Ages: 55 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Males or females between 55-80 years of age.
2. Diagnosed with mild to moderate dementia for at least 3 months prior to enrollment, based on the National Institute of Neurological and Communicative
3. Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINDS-ADRDA) Alzheimer's criteria.
4. MMSE between 12-24 (inclusive) at time of enrollment.
5. Amyloid-positive florbetapir PET scan.

Exclusion criteria

1. Prior treatment with stem cells.
2. History of intracranial, subdural, or subarachnoid hemorrhage.
3. Subjects with baseline brain MRI showing more than four (4) cerebral microhemorrhages (regardless of their anatomical location or diagnostic characterization as "possible" or "definite"), and/or one (1) or more areas of superficial siderosis, and/or evidence of a prior macrohemorrhage. MRI must include fluid-attenuation inversion recovery (FLAIR) and T2*-weighted gradient-recalled-echo (GRE) sequences.
4. History of cancer within the past 5 years, with the exception of localized basal or squamous cell carcinoma.
5. History of seizure disorder.
6. Diagnosis of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL).
7. History of cerebral neoplasm.
8. Myocardial infarction within six months of enrollment.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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40 participants in 2 patient groups, including a placebo group

Stem Cells

Experimental group

Description:

Stem cells

Treatment:

Drug: Human Mesenchymal Stem Cells and Lactated Riunger's Solution

Placebo

Placebo Comparator group

Description:

Lactated Ringer's Solution

Treatment:

Other: Placebo