Human Mesenchymal Stem Cells & Monoclonal Antibodies in the Treatment for Mild Cognitive Impairment or Early Alzheimer's Disease.

May 26, 2026 updated by: Bernard (Barry) Baumel

A Pilot Study to Assess the Effect of Adding 1 Infusion of Human Mesenchymal Stem Cells (hMSC) to Patients Treated With Anti-Amyloid Monoclonal Antibodies Who Are Suffering From Mild Cognitive Impairment or Mild Alzheimer's Disease.

The purpose of this study is to test if adding one infusion of (Human Mesenchymal Stem Cells) hMSCs to the treatment with standard of care (SOC) monoclonal antibodies (mAb) will stabilize the rate of cognitive and functional decline associated with mild Alzheimer's Disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Florida
      • Miami, Florida, United States, 33136
        • Recruiting
        • University of Miami Department of Neurology
        • Contact:
        • Principal Investigator:
          • Bernard S Baumel, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adults 55-90 years at the time of signing consent
  • Patients diagnosed with Mild Cognitive Impairment or mild Dementia due to Alzheimer disease, receiving treatment with an FDA approved monoclonal antibody (Leqembi/Lecanemab or Kisunla/Donanemab) for at least 6 months prior to the infusion visit.
  • MMSE score 20-26.
  • Patients must be able to consent.
  • Have a family member or friend (study partner) who has frequent and sufficient contact with the patient and is able to answer questions about the participant's daily activities to complete the ADCS-MCI-ADL. Completing this scale is required to assess the impact of the study intervention on cognitive function and daily living skills in this patient population. Having a study partner is a requirement of this study.

Exclusion Criteria:

  • Dementia other than AD
  • Patient with severe depression. Patients with controlled depression are allowed to participate.
  • Inability to independently provide informed consent is considered exclusionary per protocol requirements
  • Recent history of substance abuse
  • History of bleeding disorders, HIV, HCV or HBV
  • Recent history (within 3 years) of malignancies, except for treated basal cell, squamous carcinoma or melanoma in situ, prostate in situ, cervical carcinoma in situ.
  • Uncontrolled medical conditions (hypertension, diabetes, unstable angina or MI within 1 year prior to screening)
  • History of bleeding disorder
  • Currently receiving (or received within four weeks of screening) experimental agents for the treatment of Alzheimer's Disease or enrolled in clinical trials in the prior 3 months.
  • Be a transplant recipient or in any other active medical condition than in the opinion of the investigator may compromise the safety or compliance of the patient or preclude successful completion of the study
  • Be premenopausal

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Mesenchymal Stem Cell Infusion
Patients will receive one infusion of 25 million of human mesenchymal stem cells in the vein.
Biological: human Mesenchymal Stem Cells
Patients eligible to participate will receive one infusion of 25 million cells administered intravenously.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Alzheimer's Disease Scale-Cognitive Subscale (ADAS-Cog)
Time Frame: Baseline, Week 16, Week 32, and Week 48
The Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog-11) is a validated performance-based instrument used to assess the severity of cognitive impairment in individuals with Alzheimer's disease. The scale evaluates multiple cognitive domains, including memory, reasoning, language, orientation, ideational praxis, and constructional praxis. Spoken language, language comprehension, word-finding ability, and the ability to remember instructions are also assessed. Scores range from 0 to 70, with higher scores indicating greater cognitive impairment.
Baseline, Week 16, Week 32, and Week 48

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory for Mild Cognitive Impairment (ADCS-MCI -ADL)
Time Frame: Baseline, Week 16, Week 32, and Week 48
The Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory for Mild Cognitive Impairment (ADCS-MCI-ADL) is an 18-item caregiver-reported instrument assessing basic and instrumental daily activities. Total scores range from 0 to 57, with higher scores indicating greater functional independence.
Baseline, Week 16, Week 32, and Week 48

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Bernard (Barry) Baumel

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bernard S. Baumel, MD, University of Miami

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 15, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 15, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 15, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 23, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 30, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 6, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 28, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 26, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 20251381

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified IPD will be shared with researchers upon request following institutional guidelines and agreements in place. IPD will be shared after study publication.

IPD Sharing Time Frame

Post study publication.

IPD Sharing Access Criteria

Qualified researchers will have access to de-identified study data upon request to the study Principal Investigator (Dr. Barry Baumel). Results of cognitive and QOL scales will be provided via email upon request.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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