- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01781390
Safety Study of Allogeneic Mesenchymal Precursor Cell Infusion in Myocardial Infarction (AMICI)
A Prospective, Double-Blind, Randomized, Placebo-controlled Clinical Trial of Intracoronary Infusion of Mesenchymal Precursor Cells (MPC) in the Treatment of Patients With ST-Elevation Myocardial Infarction
This was a double-blind, randomized, placebo-controlled study that was designed to enroll a total of 225 participants with de novo anterior wall acute ST-segment elevation myocardial infarction (STEMI) due to a lesion of the left anterior descending coronary artery undergoing percutaneous coronary intervention (PCI). Eligible participants were to be enrolled and undergo revascularization of the culprit left anterior descending (LAD) coronary artery. The interventional procedure included as dose ranging assessment of intracoronary (IC) delivery of MPC or placebo infused into the stented coronary artery. This study compared two doses of MPCs and a placebo control group. Study participants were randomly assigned in 1:1:1 fashion to receive either 12.5 Million or 25 Million MPCs or placebo (saline). Initially, each group was designed to have approximately 75 patients per treatment group. The Primary Objective of the study was to determine the safety and feasibility of IC infusion of investigational MPCs in this acute STEMI population.
The Primary Objective of the study was to determine the safety and feasibility of IC infusion of investigational MPCs in this acute STEMI population. Feasibility of the infusion of the investigational agent was assessed by measurement of thrombolysis in myocardial infarction (TIMI) flow and perfusion (1) immediately prior to, (2) during (after approximately 50% of total investigational agent volume infused) and (3) following the investigational agent infusion after successful PCI and stenting. There was no evidence of clinically important coronary microvascular obstruction related to infusion of the investigational agent.
Study Overview
Status
Conditions
Detailed Description
This was a prospective, double-blind, randomized, placebo-controlled study that was designed to enroll approximately 225 participants with de novo anterior STEMI due to a lesion involving the proximal-mid LAD coronary artery who undergo primary PCI at approximately 45 clinical study sites. However, due to difficulty in consenting participants and operationalizing the protocol under the emergency environment of an acute STEMI, it became clear that a major protocol amendment would be required. Accordingly, the protocol was adjusted to randomize 105 participants (35 per treatment group) at 25 clinical study sites. This 53% reduction in participants from the original protocol allowed preliminary evaluations of safety and feasibility.
Potential participants who were in the midst of experiencing an acute anterior wall STEMI, where increased time to coronary revascularization is known to correlate with the extent of subsequent myocardial necrosis, were approached by a study site investigator prior to PCI to determine the participant's interest to participate in a stem cell investigational trial. This required the patient to sign an informed consent permitting both the PCI procedure and participation in the trial. Participants who agreed to participate in the AMICI study and had a successful and uneventful PCI and stenting of the culprit LAD lesion performed were then randomized to one of the three treatment groups. The randomization and treatment assignment were obtained using an interactive voice-response system (IVRS/interactive web response system [IWRS]). The following stratification for duration of cardiac ischemia was performed to ensure balanced randomization across the treatment groups:
- ≤2 hours
- >2 hours to ≤6 hours
- >6 to ≤12 hours
Eligible participants received intracoronary delivery of the assigned treatment infused via a microcatheter into the stented culprit artery.
After approximately 50% of the intracoronary infusion of investigational treatment was completed, an angiographic determination of coronary flow was performed. The following guidelines were used to determine if the remaining investigational agent should be infused:
The study infusion should have been continued if TIMI 2 or TIMI 3 flow was present in the absence of ALL of the following;
- Sustained hypotension not responsive to fluid administration;
- Clinical signs/symptoms indicating an acute cerebrovascular event;
- Re-elevation of ST-segments if previously resolved with PCI;
- Onset of the participant's symptoms of myocardial ischemia unresponsive to appropriate interventions;
- Two episodes of sustained ventricular tachycardia (VT)/ventricular fibrillation (VF) requiring cardioversion (infusion can continue if a single episode of sustained VT/VF requiring cardioversion occurred).
Feasibility of the infusion of the investigational agent was assessed by measurement of TIMI flow and perfusion (1) immediately prior to, (2) during (after approximately 50% of total investigational agent volume infused) and (3) following the investigational agent infusion after successful PCI and stenting. There was no evidence of clinically important coronary microvascular obstruction related to infusion of the investigational agent.
If, for any reason, the site investigator withdrew a randomized participant prior to infusion of the investigational agent, the reason for early termination and data from the screening visit were entered into the eCRF by the study site. The participant did not remain in the study. If for any reason, a participant's study infusion was halted due to safety considerations, the participant remained in the study. A participant who prematurely withdrew from the study remained in the study for long-term safety follow-up.
Evaluation for safety was performed for up to 24 months post infusion for all non-Swedish sites. Participants enrolled in Sweden who consented for additional follow-up underwent safety assessments at 36, 48, and 60 months post-infusion of investigational agent. All participants were to have cardiac imaging using cardiac magnetic resonance imaging [cMRI] and 2D-echocardiography, Holter monitoring, clinical evaluations, and laboratory testing as outlined in the study protocol.
An independent Data Monitoring Safety Board (DSMB) reviewed all relevant acute peri-procedural data, serious adverse events (SAE), other adverse events (AE), and efficacy data (if requested) periodically until participant enrolment was closed.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Key Inclusion Criteria:
- Clinical symptoms consistent with acute myocardial infarct (AMI) (pain, etc.) for a maximum of 12 hours from onset of symptoms to percutaneous coronary intervention (PCI).
- De Novo anterior AMI.
- Successful revascularization of the culprit lesion.
Key Exclusion Criteria:
- Prior AMI, known cardiomyopathy, or hospital admission for heart failure (HF).
- Significant valvular disease.
- Need for other interventional or surgical procedure to treat heart disease (planned or scheduled).
- Cardiogenic shock or hemodynamic instability within 24 hours of randomization.
- Prior PCI to LAD.
- Pacemaker, ICD (Implantable Cardioverter Defibrillator), or any other contra-indication for cardiac MRI.
- Prior or current participation in any stem cell study or any other investigational trial in the past 30 days.
Study Plan
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 |
---|---|
Placebo Comparator: Placebo
Participants received matching-placebo solution 2 milliliters per minute (mL/min) infused Intracoronary for 60 min including line flush [0 Mesenchymal Precursor Cells (MPCs)/min] on Day 0.
|
Matching placebo solution for infusion.
|
Experimental: Mesenchymal Precursor Cells (MPC) 12.5 M
Participants received MPC 12.5 solution 2 mL/min infused Intracoronary for 60 min including line flush (2.5x10^5 MPCs/min) on Day 0.
|
MPC 12.5 M solution for infusion.
|
Experimental: Mesenchymal Precursor Cells (MPC) 25 M
Participants received MPC 12.5 solution 2 mL/min infused Intracoronary for 60 min including line flush (5.0x10^5 MPCs/min) on Day 0.
|
MPC 25 M solution for infusion.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
Time Frame: Up to approximately 8 years
|
Safety measure: An AE is any unfavorable and unintended sign, symptom, or disease, whether or not related to the investigational product.
A TEAE was defined as any AE with onset post study drug treatment.
An SAE was defined as any untoward medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is medically important.
|
Up to approximately 8 years
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Fred Grossman, DO, Mesoblast, Inc.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- ANG.AMI-IC001
- 2010-020497-41 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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.
Clinical Trials on Acute Myocardial Infarction
-
Henry Ford Health SystemAbiomed Inc.Enrolling by invitationAcute Myocardial Infarction | Cardiogenic Shock | STEMI | NSTEMI - Non-ST Segment Elevation MI | STEMI - ST Elevation Myocardial Infarction | NSTEMI | Acute Myocardial Infarction With ST Elevation | Acute Myocardial Infarction of Right Ventricle (Disorder) | Acute Myocardial Infarction of Left VentricleUnited States
-
Jordan Collaborating Cardiology GroupCardiovascular Academy GroupTerminatedTriggers of Acute Myocardial Infarction | Time of Onset of Acute Myocardial Infarction | Long-term Prognosis After Acute Myocardial InfarctionJordan
-
Recardio, Inc.CompletedAcute Myocardial Infarction | STEMI - ST Elevation Myocardial Infarction | Acute Myocardial IschemiaNetherlands, Hungary, Austria, Poland, Belgium
-
Medical Center of South ArkansasWithdrawnAcute Coronary Syndrome | Acute ST Segment Elevation Myocardial InfarctionUnited States
-
Yuan's General HospitalKaohsiung Veterans General Hospital.; Sin-Lau HospitalUnknownAcute Myocardial Infarction, of Inferolateral Wall | Acute Myocardial Infarction, of Inferoposterior WallTaiwan
-
Aristotle University Of ThessalonikiRecruitingCardiovascular Diseases | Acute Coronary Syndrome | Acute Myocardial Infarction | Metabolic DisturbanceGreece
-
Barts & The London NHS TrustUniversity College, London; Queen Mary University of LondonCompletedAcute Myocardial InfarctionSwitzerland, Denmark, United Kingdom
-
Sheba Medical CenterCompletedNon ST Elevation Myocardial Infarction | Acute Coronary SyndromesIsrael
-
Medstar Health Research InstituteWithdrawnST-elevation Myocardial Infarction | Acute Myocardial InfarctionUnited States
-
Cardio Med Medical CenterGeorge Emil Palade University of Medicine, Pharmacy, Sciences and Technology... and other collaboratorsCompletedAcute Coronary Syndrome | Acute Myocardial Infarction | Systemic Inflammation | Ventricular Remodeling | Non-ST Elevation Myocardial InfarctionRomania
Clinical Trials on Placebo
-
SamA Pharmaceutical Co., LtdUnknownAcute Bronchitis | Acute Upper Respiratory Tract InfectionKorea, Republic of
-
National Institute on Drug Abuse (NIDA)CompletedCannabis UseUnited States
-
AstraZenecaParexel; Spandauer Damm 130; 14050; Berlin, GermanyCompletedMale Subjects With Type II Diabetes (T2DM)Germany
-
Heptares Therapeutics LimitedCompletedPharmacokinetics | Safety IssuesUnited Kingdom
-
GlaxoSmithKlineCompletedPulmonary Disease, Chronic ObstructiveUnited Kingdom, Netherlands
-
Shijiazhuang Yiling Pharmaceutical Co. LtdXuanwu Hospital, BeijingCompleted
-
ItalfarmacoCompletedBecker Muscular DystrophyNetherlands, Italy
-
GlaxoSmithKlineCompletedInfections, BacterialUnited States
-
West Penn Allegheny Health SystemCompletedAsthma | Allergic RhinitisUnited States