CardiAMP Cell Therapy Chronic Myocardial Ischemia Trial (CardiAMP-CMI)

January 4, 2026 updated by: BioCardia, Inc.

Randomized Controlled Pivotal Trial of Autologous Bone Marrow Cells Using the CardiAMP Cell Therapy System in Patients With Refractory Angina Pectoris and Chronic Myocardial Ischemia (CardiAMP CMI Trial)

Prospective, multi-center, 2:1 randomized (Treatment : Sham Control), sham-controlled, double-blinded trial to compare treatment using the CardiAMP cell therapy system to sham treatment

Treatment Group:

Subjects treated with aBMC using the CardiAMP cell therapy system

Sham Control Group:

Subjects treated with a Sham Treatment (no introduction of the Helix transendocardial delivery catheter, no administration of aBMC)

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

343

Phase

  • Not Applicable

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 Locations

    • Florida
      • Gainesville, Florida, United States, 32610
        • University of Florida
    • Wisconsin
      • Madison, Wisconsin, United States, 53792
        • University of Wisconsin Madison

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

Ages Eligible for Study

17 years to 76 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Male or female 21 to 80 years of age
  2. Canadian Cardiovascular Society (CCS) class III or IV chronic refractory angina.
  3. Lack of control of angina symptoms despite maximum tolerated doses of anti-angina drugs.
  4. Evidence of inducible myocardial ischemia on baseline stress testing
  5. Obstructive coronary disease unsuitable for conventional revascularization
  6. Experience angina episodes at a minimum of 7 angina episodes per week (during a 4-week screening period).
  7. Able to complete an exercise tolerance test on the treadmill
  8. Left ventricular ejection fraction of greater than or equal to 40% as measured by echocardiography.
  9. Qualification of a pre-procedure screening of bone-marrow aspiration

Exclusion Criteria

Other cardiac or vascular system or other health-related criteria which may be seen in a patient's history and physical examination.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: CardiAMP cell therapy system

Roll-in phase:

Up to 10 subjects with refractory chronic myocardial ischemia CCS class III-IV will be treated in an unblinded, uncontrolled roll-in phase.

In the subsequent randomized phase:

Up to 333 subjects with refractory chronic myocardial ischemia CCS class III-IV will be randomized. Up to 222 Subjects will be randomized to treatment with the CardiAMP cell therapy system.

The CardiAMP Cell Therapy system consists of the CardiAMP Potency Assay, the Helix/Morph intramyocardial delivery catheter system, and the CardiAMP Cell Separator. The system allows the investigator to identify patients with a high chance to respond to im autologous stem cell therapy (using the CardiAMP Cell Potency Assay), to isolate the stem cells from a bone marrow harvest at the point of care (using the CardiAMP CS system), and to percutaneously inject the autologous cells into the myocardium using the Helix/Morph delivery catheters.
Sham Comparator: Sham procedure control

Randomized phase:

Up to 333 subjects with refractory chronic myocardial ischemia CCS class III-IV will be randomized. Up to 111 subjects will be treated with a Sham Treatment (no introduction of trans endocardial delivery catheter and no administration of autologous cells)

Patients will receive sham bone marrow procedure and a ventriculogram. A scripted sham percutaneous procedure will be performed

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline in Total Exercise Time on the treadmill using the Modified Bruce Protocol
Time Frame: Baseline and 6 months visit
A superiority analysis with regards to change from Baseline in Total Exercise Time at the 6 months follow-up visit (using a Modified Bruce Protocol).
Baseline and 6 months visit

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety: overall survival at 6 months follow-up
Time Frame: at 6 months follow-up
A non-inferiority analysis of overall survival at 6-months will be made comparing the Treatment group to the Sham Control group using a non-inferiority margin of 10%.
at 6 months follow-up
Safety: Total Major adverse cardiac events (MACE) at 6 months follow-up
Time Frame: from randomisation to 6 months follow-up
A non-inferiority analysis with regard to Total Major Adverse Cardiac Events (MACE: defined as death, cardiac hospitalization, non-fatal myocardial infarction and stroke) at 12 month follow-up, as adjudicated by an independent clinical endpoint classification (CEC) committee with 10% margin.
from randomisation to 6 months follow-up
Efficacy: Change from baseline in Total Exercise Time at 6 months follow-up
Time Frame: Baseline and at 6 months follow-up
Superiority analysis with regards to change from baseline in Total Exercise Time on Exercise Tolerance Test (ETT) at 6 Month Follow-up Visit. Baseline (BL) is the average of (at least) two total exercise times measured during the screening period.
Baseline and at 6 months follow-up
Efficacy: Change of angina frequency (per week) at 12 months follow-up
Time Frame: Baseline and at 12 months follow-up

Superiority analysis with regards to change in angina frequency (episodes per week) at 12 month follow-up Visit versus baseline angina frequency (per week).

Participants self-reported angina episodes utilizing an electronic diary for 4 weeks at baseline (screening period) and in the 4 weeks before the 12-month follow-up visits.

Baseline and at 12 months follow-up
Efficacy: Change of Angina Frequency (per week) at 6 months follow-up
Time Frame: Baseline and at 6 months follow-up

Superiority analysis with regards to change in angina frequency at 6 month follow-up visit versus baseline (expressed as angina frequency per week).

Participants self-reported angina episodes utilizing an electronic diary for 4 weeks at baseline and in the 4 weeks before the 6-month follow-up visits.

Baseline and at 6 months follow-up
Safety: Total Major adverse cardiac events (MACE) at 12 months follow-up
Time Frame: From randomisation to 12 month follow-up
Superiority analysis with regards to incidence of MACE from Randomization until the end of the 24 month follow-up period
From randomisation to 12 month follow-up
Efficacy: Percentage of patients with at least 1 Serious Adverse Event (SAE)
Time Frame: From randomization to 12 Months follow-up
Superiority analysis with regards to percentage of participants with at least one SAE. From randomization until the end of the 12 month follow-up period.
From randomization to 12 Months follow-up

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Amish Raval, MD, University of Wisconsin, Madison

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.

Helpful Links

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)

June 30, 2021

Primary Completion (Actual)

February 19, 2025

Study Completion (Estimated)

December 1, 2027

Study Registration Dates

First Submitted

February 28, 2018

First Submitted That Met QC Criteria

February 28, 2018

First Posted (Actual)

March 7, 2018

Study Record Updates

Last Update Posted (Estimated)

January 6, 2026

Last Update Submitted That Met QC Criteria

January 4, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 04747 (CLIN)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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