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Allogeneic Heart Stem Cells to Achieve Myocardial Regeneration

Randomized, Double-Blind, Placebo-Controlled Phase I/II Study of the Safety and Efficacy of Intracoronary Delivery of Allogeneic Cardiosphere-Derived Cells in Patients With a Myocardial Infarction and Ischemic Left Ventricular Dysfunction

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01458405
Acronym
ALLSTAR
Enrollment
135
Registered
2011-10-24
Start date
2012-11-13
Completion date
2019-02-28
Last updated
2024-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myocardial Infarction

Keywords

Myocardial Infarction, Heart Attack, Stem cell, Left ventricular dysfunction, Congestive heart failure

Brief summary

The purpose of this study is to determine whether Allogeneic Cardiosphere-Derived Cells (CAP-1002) is safe and effective in decreasing infarct size in patients with a myocardial infarction.

Interventions

Single dose, blinded, intracoronary infusion of 25 Million cardiosphere-derived cells

DRUGPlacebo

Single, blinded, intracoronary infusion of a placebo solution

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
California Institute for Regenerative Medicine (CIRM)
CollaboratorOTHER
Capricor Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. History of MI (STEMI or NSTEMI) within the prior 12 months due to a coronary artery event and evidenced by at least two of the following: typical ischemic symptoms, serial ST-T changes (new ST elevation or new left bundle block) and/or elevated troponin or Creatine phosphokinase MB isoenzyme (CK-MB) \>5 times the upper limit of normal. Also at least one of the following: development of pathological Q wave ECG changes, imaging evidence of new loss of viable myocardium, or new regional wall motion abnormalities. 2. History of percutaneous coronary intervention (PCI), with stent placement resulting in Thrombolysis in Myocardial Infarction (TIMI) flow = 3, in the coronary artery supplying the infarcted, dysfunctional territory and through which the treatment will be infused. 3. At least one assessment of left ventricular ejection function (LVEF) \<=0.45 as determined by any one of the standard modalities (echocardiography, ventriculography, nuclear imaging, CT and/or MRI) prior to or during the screening period. * For participants that fulfill the criteria of Recent MI (i.e., within 90 days of MI) at time of screening visit: assessment must be post-reperfusion after index MI and the most recent test prior to or during the screening period. * For participants that fulfill the criteria of Chronic MI (i.e., greater than 90 days from MI) at the time of screening visit: assessment must be at least 21 days post-reperfusion after index MI and the most recent test prior to or during the screening period. Note: participants may screen as a Recent MI but be randomized into the Chronic MI strata if the infusion date is \> 90 days post-MI. 4. Left ventricular infarct size of \>= 15% of left ventricular mass in the qualifying infarct-related region to be infused as determined by centrally read screening MRI, with associated thinning and/or hypokinesis, akinesis, or dyskinesis, with no large aneurysmal area in the infarcted regions. 5. No further revascularization clinically indicated at the time the participants is assessed for participation in the clinical trial. 6. Ability to provide informed consent and follow-up with protocol procedures. 7. Age \>= 18 years.

Exclusion criteria

1. Participants with a history of coronary artery bypass surgery, and a patent graft (arterial or saphenous vein graft) attached to the coronary artery to be infused. 2. Diagnosed or suspected myocarditis. 3. History of cardiac tumor, or cardiac tumor demonstrated on screening MRI. 4. History of acute coronary syndrome in the 4 weeks prior to study infusion. 5. History of previous stem cell therapy. 6. History of radiation treatment to the central or left side of thorax. 7. Current or history (within the previous 5 years) of systematic auto-immune or connective tissue disease including, but not limited to, giant cell myocarditis, cardiac or systemic sarcoidosis, Dressler's syndrome, chronic recurrent or persistent pericarditis. 8. History of or current treatment with immunosuppressive, anti-inflammatory, or other agents to treat manifestations of systemic immunologic reactions, including chronic systemic corticosteroids, biologic agents targeting the immune system, anti-tumor and anti-neoplastic drugs, anti-vascular endothelial growth factor, or chemotherapeutic agents within 3 months prior to enrollment. 9. Prior implantable cardioverter defibrillator (ICD) and/or pacemaker placement where study imaging site has not been trained and certified specifically for this protocol to conduct cardiac MRI in participants with ICD and/or pacemaker placement. a. Presence of a pacemaker and/or ICD generator with any of the following limitations/conditions are excluded: i. Manufactured before the year 2000, ii. Leads implanted \< 6 weeks prior to signing informed consent, iii. Non-transvenous epicardial, abandoned, or no-fixation leads, iv. Subcutaneous ICDs, v. Leadless pacemakers, vi. Any other condition that, in the judgement of device-trained staff, would deem an MRI contraindicated. b. Pacemaker dependence with an ICD (Note: pacemaker-dependent candidates without an ICD are not excluded). c. A cardiac resynchronization therapy (CRT) device implanted \< 3 months prior to signing informed consent. 10. Estimated glomerular filtration rate \< 30 mL/min. 11. Participation in an on-going protocol studying an experimental drug or device, or participation in an interventional clinical trial within the last 30 days. 12. Diagnosis of arrhythmogenic right ventricular cardiomyopathy. 13. Current alcohol or drug abuse. 14. Pregnant/nursing women and women of child-bearing potential that do not agree to use at least two forms of active and highly reliable method(s) of contraception. Acceptable methods of contraception include contraceptive pills, depo-progesterone injections, a barrier contraceptive such as a condom with or without spermicide cream or gel, diaphragms or cervical cap with or without spermicide or gel, or an intrauterine device (IUD). 15. Human Immunodeficiency Virus (HIV) infection. 16. Viral hepatitis. 17. Uncontrolled diabetes (HbA1c\>9%). 18. Abnormal liver function (Serum Glutamic Pyruvic Transaminase/Alanine aminotransferase \> 3 times the upper reference range) and/or abnormal hematology (hematocrit \< 25%, White Blood Cell \< 3000 µl, platelets \< 100,000 µl) studies without a reversible, identifiable cause. 19. Sustained ventricular tachycardia (VT) or non-sustained ventricular tachycardia \> 30 beats, not associated with the acute phase of a previous MI (\> 48 hours after the MI onset) or a new acute ischemic episode. 20. Ventricular fibrillation not associated with a new acute ischemic episode. 21. New York Heart Association (NYHA) Class IV congestive heart failure. 22. Evidence of tumor on screening chest/abdominal/pelvic (body) CT scan. 23. Any prior transplant. 24. Known hypersensitivity to dimethyl sulfoxide (DMSO). 25. Known hypersensitivity to bovine products. 26. Any malignancy within 5 years (except for in-situ non-melanoma skin cancer and in-situ cervical cancer) of signing the informed consent form. 27. Any condition or other reason that, in the opinion of the Investigator or Medical Monitor, would render the participants unsuitable for the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Experiencing Any of the Adjudicated EventsWithin 1-month post-infusionAdjudicated Events reported included: Acute myocarditis; Death due to ventricular tachycardia (VT) or ventricular fibrillation (VF); Sudden unexpected death (defined as occurring within one hour of symptom onset, or un- witnessed death); and Major adverse cardiac event (MACE) (defined as the composite incidence of death, non- fatal recurrent MI, hospitalization for heart failure, emergency room treatment for heart failure, left ventricular assist device \[LVAD\] placement or heart transplant).
Percent Change From Baseline in Myocardium Mass Infarct Size at Month 12Baseline, Month 12Infarct size, expressed as a percentage, was calculated by dividing the sum of infarct areas from all sections by the sum of left ventricular (LV) areas from all sections (including those without infarct scar) and multiplying by 100. Percent improvement in infarct size defined by scar as a percent of LV mass was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Secondary

MeasureTime frameDescription
Percent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Baseline, Month 6 and Month 12LVEF is the fraction of chamber volume ejected in systole (stroke volume) in relation to the volume of the blood in the ventricle at the end of diastole (end-diastolic volume). Percent change in LVEF was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Absolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Baseline, Month 6 and Month 12LVEDV is the amount of blood in the heart's left ventricle just before the heart contracts. LVEDV was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.
Percent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Baseline, Month 6 and Month 12LVEDV is the amount of blood in the heart's left ventricle just before the heart contracts. Percent change in LVEDV was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Absolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Baseline, Month 6 and Month 12LVESV is the amount of blood remaining in the ventricle at the end of systole, after the heart has contracted. LVESV was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.
Percent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Baseline, Month 6 and Month 12LVESV is the amount of blood remaining in the ventricle at the end of systole, after the heart has contracted. Percent change in LVESV was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Percent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12Baseline, Month 6 and Month 12Infarct size, expressed as a percentage, was calculated by dividing the sum of infarct areas from all sections by the sum of LV areas from all sections (including those without infarct scar) and multiplying by 100. Improvement in infarct size as a percent of LV mass was assessed by magnetic resonance imaging.
Absolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Baseline, Month 6 and Month 12Infarct size in grams was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.
Percent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Baseline, Month 6 and Month 12Percent change in infarct size was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Absolute Change From Baseline in Viable Mass at Month 6 and 12Baseline, Month 6 and Month 12Viable mass expressed in grams was assessed by magnetic resonance imaging. Myocardial viable mass refers to myocardial cells that are alive after myocardial injury, according to cellular, metabolic and contractile functions. Absolute change was calculated as: post-baseline value-Baseline value.
Percent Change From Baseline in Viable Mass at Month 6 and12Baseline, Month 6 and Month 12Percent change in viable mass was assessed by magnetic resonance imaging. Myocardial viable mass refers to myocardial cells that are alive after myocardial injury, according to cellular, metabolic and contractile functions. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Number of Participants Experiencing Any of the Adjudicated EventsUp to Month 12 post-infusionAdjudicated Events reported included: Acute myocarditis; Death due to VT or VF; Sudden unexpected death (defined as occurring within one hour of symptom onset, or un- witnessed death); MACE (defined as the composite incidence of death, non- fatal recurrent MI, hospitalization for heart failure, emergency room treatment for heart failure, LVAD placement or heart transplant); New cardiac tumor formation on MRI imaging; Any hospitalization due to cardiovascular cause; Any inter-current cardiovascular illness or one related to CAP-1002 or placebo infusion, which prolongs hospitalization; New thrombolysis in myocardial infarction (TIMI) flow \<=1; Development of, or an increase in frequency of VT; Development of increased anti-human leukocyte antigen (anti-HLA) antibody levels (mean fluorescence intensity \[MFI\] \>= 1000; 5000) with development of sensitization to HLA antigens specific to CAP-1002 cardiosphere-derived cells donor.
Percent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Baseline, Month 6 and Month 12The regions assessed of the heart were: Anterior, Lateral, Inferior and Septal. Tissue mass recovery in the function of region receiving therapy expressed as percentage improvement was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.
Change From Baseline in Six-Minute Walk Test at Month 6 and 12Baseline, Month 6 and Month 12The six-minute walk test measures the distance a participant is able to walk over a total of six minutes on a hard, flat surface. The goal is for the participant to walk as far as possible in six minutes. The participant is allowed to self-pace and rest as needed as they traverse back and forth along a marked walkway. The total distance walked, in meters, was recorded for each participant. Longer distances indicate better outcomes.
Change From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12Baseline, Month 6 and Month 12Health related quality of life is measured using the Minnesota Living with Heart Failure questionnaire (MLHFQ). The MLHFQ is a patient-reported outcome to measure the patient's perceptions of the influence of heart failure on physical and emotional aspects of life. The questionnaire has 21 items to assess the impact of frequent physical symptoms of heart failure and the effects of heart failure on physical and emotional functions. Responses are recorded on six-point Likert scales, ranging from 0 (none) to 5 (very much). Total Scores are summed to a range of 0-105, in which with higher scores indicate worse health-related quality of life.
Change From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Baseline, Month 6 and Month 12The Short Form (36) Health Survey is a 36-item, patient-reported survey of participant health. The SF-36 consists of eight scaled scores (Physical Function, Physical Health, Emotional Problems, Energy/Fatigue, Emotional Well-Being, Social Functioning, Pain Scale and General Health) which are the weighted sums of the questions in their section. Each component on the SF-36 Item Health Survey is scored from 0-100 with higher scores reflecting better participant status.
Change From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Baseline, Month 6 and Month 12WPAI:SHP is a self-administered questionnaire that measures the effect of general health and symptom severity on work productivity and regular activities during the last 7 days. Four scores are derived as percent: Absenteeism, Presenteeism, Work Productivity Loss, Activity Impairment. Each of 4 scores expressed as impairment percentages with a total possible score range of 0 to 100, high percentage= more impairment, less productivity.
Number of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Baseline, Month 6 and Month 12PGA will ask participants to assess how their overall status has changed since prior to receiving the therapy. Possible PGA responses are 0=none, 1=mild, 2=moderate, and 3=severe. Change from Baseline was calculated as lowest PGA score on scheduled visits minus PGA score at Baseline which resulted in possible ranges from -3 to +3. Decreasing scores indicate improvement.
Number of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Baseline, Month 6 and Month 12New York Heart Association (NYHA) Classification: Class I Subject with cardiac disease but without resulting limitations of physical activity. Class II Subjects with cardiac disease resulting in slight limitation of physical activity. Class III Subjects with cardiac disease resulting in marked limitation of physical activity. Class IV Subjects with cardiac disease resulting in inability to carry on any physical activity without discomfort. Change from Baseline was calculated as lowest NYHA score on scheduled visits minus NYHA score at Baseline which resulted in possible ranges from -3 to +3. Decreasing scores indicate improvement.
Change From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Baseline, Month 6 and Month 12NT-proBNP was the cardiac biomarkers assessed through serum sample.
Change From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Baseline, Month 6 and Month 12NT-proBNP was the cardiac biomarkers assessed through serum sample.
Absolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Baseline, Month 6 and Month 12The regions assessed of the heart were: Anterior, Lateral, Inferior and Septal. Tissue mass recovery in the function of region receiving therapy expressed as percentage improvement was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.
Absolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Baseline, Month 6 and Month 12LVEF is the fraction of chamber volume ejected in systole (stroke volume) in relation to the volume of the blood in the ventricle at the end of diastole (end-diastolic volume). LVEF expressed as percentage ejection fraction was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Countries

United States

Participant flow

Recruitment details

The study enrolled participants at 30 active sites between 13 November 2012 to 03 July 2017. Study had 2 phases: Phase 1 (safety cohort) and Phase 2 (randomized double-blind cohort).

Pre-assignment details

After completion of screening procedures, and at least 4 weeks after myocardial infarction (MI), eligible Phase 1 participants received CAP-1002. In Phase 2, participants were randomized in 2:1 ratio to receive treatment with either CAP-1002 or placebo. Based on available clinical data at time of analysis, Sponsor decided not to pursue development of CAP-1002 in this indication; hence trial was stopped. Outcome measures data was planned to be collected and reported for Phase 2 part of study.

Participants by arm

ArmCount
Phase 1: Safety Cohort:12.5 M CDCs
Participants with recent MI (defined as index MI more than 4 weeks but within 90 days prior to infusion), and chronic MI (defined as index MI more than 90 days but less than 12 months prior to infusion), randomized in safety cohort received a single infusion of CAP-1002 (12.5 M cells) suspended in cryopreservation solution on Day 0 and were followed up for 12 months post-infusion.
4
Phase 1: Safety Cohort: 25 M CDCs
Participants with recent MI (defined as index MI more than 4 weeks but within 90 days prior to infusion), and chronic MI (defined as index MI more than 90 days but less than 12 months prior to infusion), randomized in safety cohort received a single infusion of CAP-1002 (25 M cells) suspended in cryopreservation solution on Day 0 and were followed up for 12 months post-infusion.
10
Phase 2: Randomized Treatment Cohort: Placebo
Participants with recent MI (defined as index MI more than 4 weeks but within 90 days prior to infusion), and chronic MI (defined as index MI more than 90 days but less than 12 months prior to infusion), randomized to placebo received an infusion of 11.1 mL of cryopreservation solution on Day 0 and were followed up for 12 months post-infusion.
44
Phase 2: Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived Cells
Participants with recent MI (defined as index MI more than 4 weeks but within 90 days prior to infusion), and chronic MI (defined as index MI more than 90 days but less than 12 months prior to infusion), randomized to active treatment received a single infusion of CAP-1002 (25 M cells) suspended in cryopreservation solution on Day 0 and were followed up for 12 months post-infusion.
77
Total135

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Phase 1 (up to 12 Months)Other0100
Phase 2 (up to 12 Months)Lost to Follow-up0002
Phase 2 (up to 12 Months)Study discontinued by Sponsor001120
Phase 2 (up to 12 Months)Withdrawal by Subject0001

Baseline characteristics

CharacteristicPhase 1: Safety Cohort: 25 M CDCsPhase 2: Randomized Treatment Cohort: PlaceboPhase 1: Safety Cohort:12.5 M CDCsPhase 2: Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
10 Participants44 Participants4 Participants77 Participants135 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants7 Participants0 Participants7 Participants15 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants0 Participants2 Participants3 Participants
Race (NIH/OMB)
White
8 Participants36 Participants4 Participants67 Participants115 Participants
Sex: Female, Male
Female
1 Participants6 Participants0 Participants10 Participants17 Participants
Sex: Female, Male
Male
9 Participants38 Participants4 Participants67 Participants118 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 100 / 440 / 77
other
Total, other adverse events
4 / 410 / 1024 / 4442 / 77
serious
Total, serious adverse events
0 / 40 / 1015 / 4420 / 77

Outcome results

Primary

Number of Participants Experiencing Any of the Adjudicated Events

Adjudicated Events reported included: Acute myocarditis; Death due to ventricular tachycardia (VT) or ventricular fibrillation (VF); Sudden unexpected death (defined as occurring within one hour of symptom onset, or un- witnessed death); and Major adverse cardiac event (MACE) (defined as the composite incidence of death, non- fatal recurrent MI, hospitalization for heart failure, emergency room treatment for heart failure, left ventricular assist device \[LVAD\] placement or heart transplant).

Time frame: Within 1-month post-infusion

Population: Analysis was performed on safety population that included all participants who received investigational product. Data this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsAcute myocarditis0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsDeath due to VT/VF0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsSudden unexpected death0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsMACE0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsMACE0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsAcute myocarditis0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsSudden unexpected death0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsDeath due to VT/VF0 Participants
Primary

Percent Change From Baseline in Myocardium Mass Infarct Size at Month 12

Infarct size, expressed as a percentage, was calculated by dividing the sum of infarct areas from all sections by the sum of left ventricular (LV) areas from all sections (including those without infarct scar) and multiplying by 100. Percent improvement in infarct size defined by scar as a percent of LV mass was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 12

Population: Analysis was performed on Modified Intent-to-Treat (mITT) population that included all participants in the primary randomization cohort who received investigational product, had a baseline observation, and at least one post-baseline observation. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Myocardium Mass Infarct Size at Month 12-7.11 percent changeStandard Deviation 12.218
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Myocardium Mass Infarct Size at Month 12-8.80 percent changeStandard Deviation 10.645
p-value: 0.6453Regression, Linear
Secondary

Absolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12

The regions assessed of the heart were: Anterior, Lateral, Inferior and Septal. Tissue mass recovery in the function of region receiving therapy expressed as percentage improvement was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 6-1.51 percent changeStandard Deviation 5.275
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 12-0.98 percent changeStandard Deviation 4.51
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 120.53 percent changeStandard Deviation 6.966
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 60.39 percent changeStandard Deviation 5.707
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 61.21 percent changeStandard Deviation 8.562
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 12-0.78 percent changeStandard Deviation 6.255
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 6-0.21 percent changeStandard Deviation 4.731
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 12-2.48 percent changeStandard Deviation 4.948
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 6-0.03 percent changeStandard Deviation 3.857
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 12-1.97 percent changeStandard Deviation 6.445
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 6-0.61 percent changeStandard Deviation 7.26
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 12-1.90 percent changeStandard Deviation 8.681
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 12-0.53 percent changeStandard Deviation 5.614
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 12-1.15 percent changeStandard Deviation 3.727
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 6-0.68 percent changeStandard Deviation 4.736
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 6-1.52 percent changeStandard Deviation 4.851
Secondary

Absolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12

Infarct size in grams was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 6-1.72 gramsStandard Deviation 2.831
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 12-2.57 gramsStandard Deviation 4.858
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 6-1.66 gramsStandard Deviation 2.927
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 12-2.87 gramsStandard Deviation 4.256
Secondary

Absolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12

LVEF is the fraction of chamber volume ejected in systole (stroke volume) in relation to the volume of the blood in the ventricle at the end of diastole (end-diastolic volume). LVEF expressed as percentage ejection fraction was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 60.17 percent change ejection fractionStandard Deviation 3.484
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 120.01 percent change ejection fractionStandard Deviation 4.089
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 6-0.02 percent change ejection fractionStandard Deviation 4.435
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 12-0.62 percent change ejection fractionStandard Deviation 5.239
Secondary

Absolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12

LVEDV is the amount of blood in the heart's left ventricle just before the heart contracts. LVEDV was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 611.75 milliliters (mL)Standard Deviation 23.129
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 127.59 milliliters (mL)Standard Deviation 27.551
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 63.92 milliliters (mL)Standard Deviation 23.692
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 124.04 milliliters (mL)Standard Deviation 30.511
Secondary

Absolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12

LVESV is the amount of blood remaining in the ventricle at the end of systole, after the heart has contracted. LVESV was assessed by magnetic resonance imaging. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 66.96 mLStandard Deviation 17.39
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 124.51 mLStandard Deviation 21.213
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 62.63 mLStandard Deviation 19
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 123.89 mLStandard Deviation 25.476
Secondary

Absolute Change From Baseline in Viable Mass at Month 6 and 12

Viable mass expressed in grams was assessed by magnetic resonance imaging. Myocardial viable mass refers to myocardial cells that are alive after myocardial injury, according to cellular, metabolic and contractile functions. Absolute change was calculated as: post-baseline value-Baseline value.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Viable Mass at Month 6 and 12Month 62.40 gramsStandard Deviation 9.78
Randomized Treatment Cohort: PlaceboAbsolute Change From Baseline in Viable Mass at Month 6 and 12Month 121.48 gramsStandard Deviation 11.8
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Viable Mass at Month 6 and 12Month 60.95 gramsStandard Deviation 8.143
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsAbsolute Change From Baseline in Viable Mass at Month 6 and 12Month 120.96 gramsStandard Deviation 9.063
Secondary

Change From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12

NT-proBNP was the cardiac biomarkers assessed through serum sample.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 6-0.26 log pg/mLStandard Deviation 0.732
Randomized Treatment Cohort: PlaceboChange From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 12-0.46 log pg/mLStandard Deviation 0.761
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 6-0.50 log pg/mLStandard Deviation 0.557
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Log Transformed N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 12-0.63 log pg/mLStandard Deviation 0.616
Secondary

Change From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12

Health related quality of life is measured using the Minnesota Living with Heart Failure questionnaire (MLHFQ). The MLHFQ is a patient-reported outcome to measure the patient's perceptions of the influence of heart failure on physical and emotional aspects of life. The questionnaire has 21 items to assess the impact of frequent physical symptoms of heart failure and the effects of heart failure on physical and emotional functions. Responses are recorded on six-point Likert scales, ranging from 0 (none) to 5 (very much). Total Scores are summed to a range of 0-105, in which with higher scores indicate worse health-related quality of life.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12Month 6-5.27 score on a scaleStandard Deviation 18.195
Randomized Treatment Cohort: PlaceboChange From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12Month 12-8.47 score on a scaleStandard Deviation 16.58
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12Month 6-8.30 score on a scaleStandard Deviation 15.951
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Score at Month 6 and 12Month 12-8.89 score on a scaleStandard Deviation 20.636
Secondary

Change From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12

NT-proBNP was the cardiac biomarkers assessed through serum sample.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 12-283.2 pg/mLStandard Deviation 571.86
Randomized Treatment Cohort: PlaceboChange From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 6-126.4 pg/mLStandard Deviation 621.45
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 6-361.6 pg/mLStandard Deviation 626.56
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in N-terminal Pro-hormone Brain Natriuretic Peptide (NT-proBNP) Biomarker at Month 6 and 12Month 12-395.8 pg/mLStandard Deviation 752.83
Secondary

Change From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12

The Short Form (36) Health Survey is a 36-item, patient-reported survey of participant health. The SF-36 consists of eight scaled scores (Physical Function, Physical Health, Emotional Problems, Energy/Fatigue, Emotional Well-Being, Social Functioning, Pain Scale and General Health) which are the weighted sums of the questions in their section. Each component on the SF-36 Item Health Survey is scored from 0-100 with higher scores reflecting better participant status.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Energy/Fatigue Scale: Month 128.59 score on a scaleStandard Deviation 23.044
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Well-Being Scale: Month 62.55 score on a scaleStandard Deviation 14.794
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Health Scale: Month 1221.09 score on a scaleStandard Deviation 38.683
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Well-Being Scale: Month 120.50 score on a scaleStandard Deviation 17.996
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Function Scale: Month 123.91 score on a scaleStandard Deviation 13.182
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Social Functioning Scale: Month 68.24 score on a scaleStandard Deviation 20.163
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Problems Scale: Month 63.03 score on a scaleStandard Deviation 31.185
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Social Functioning Scale: Month 128.59 score on a scaleStandard Deviation 18.632
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Problems Scale: Month 1211.46 score on a scaleStandard Deviation 41.139
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Pain Scale: Month 60.68 score on a scaleStandard Deviation 22.022
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Function Scale: Month 67.84 score on a scaleStandard Deviation 19.392
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Pain Scale: Month 122.50 score on a scaleStandard Deviation 21.166
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Energy/Fatigue Scale: Month 64.55 score on a scaleStandard Deviation 20.877
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12General Health Scale: Month 61.36 score on a scaleStandard Deviation 15.971
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12General Health Scale: Month 12-0.94 score on a scaleStandard Deviation 16.335
Randomized Treatment Cohort: PlaceboChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Health Scale: Month 615.72 score on a scaleStandard Deviation 34.393
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12General Health Scale: Month 122.74 score on a scaleStandard Deviation 14.954
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12General Health Scale: Month 60.19 score on a scaleStandard Deviation 17.1
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Function Scale: Month 66.79 score on a scaleStandard Deviation 17.041
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Function Scale: Month 126.16 score on a scaleStandard Deviation 19.943
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Health Scale: Month 626.08 score on a scaleStandard Deviation 46.68
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Physical Health Scale: Month 1237.42 score on a scaleStandard Deviation 41.171
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Problems Scale: Month 1212.58 score on a scaleStandard Deviation 32.176
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Energy/Fatigue Scale: Month 67.29 score on a scaleStandard Deviation 18.984
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Energy/Fatigue Scale: Month 128.87 score on a scaleStandard Deviation 20.254
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Well-Being Scale: Month 62.18 score on a scaleStandard Deviation 14.833
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Well-Being Scale: Month 120.72 score on a scaleStandard Deviation 13.074
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Social Functioning Scale: Month 65.68 score on a scaleStandard Deviation 24.379
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Social Functioning Scale: Month 129.91 score on a scaleStandard Deviation 27.228
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Pain Scale: Month 6-1.01 score on a scaleStandard Deviation 21.773
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Pain Scale: Month 121.04 score on a scaleStandard Deviation 21.447
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Short Form (36) (SF-36) Scale Score at Month 6 and 12Emotional Problems Scale: Month 68.23 score on a scaleStandard Deviation 41.237
Secondary

Change From Baseline in Six-Minute Walk Test at Month 6 and 12

The six-minute walk test measures the distance a participant is able to walk over a total of six minutes on a hard, flat surface. The goal is for the participant to walk as far as possible in six minutes. The participant is allowed to self-pace and rest as needed as they traverse back and forth along a marked walkway. The total distance walked, in meters, was recorded for each participant. Longer distances indicate better outcomes.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in Six-Minute Walk Test at Month 6 and 12Month 640.7 metersStandard Deviation 92.49
Randomized Treatment Cohort: PlaceboChange From Baseline in Six-Minute Walk Test at Month 6 and 12Month 1210.5 metersStandard Deviation 91.45
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Six-Minute Walk Test at Month 6 and 12Month 615.5 metersStandard Deviation 108.43
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Six-Minute Walk Test at Month 6 and 12Month 1225.4 metersStandard Deviation 90.08
Secondary

Change From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12

WPAI:SHP is a self-administered questionnaire that measures the effect of general health and symptom severity on work productivity and regular activities during the last 7 days. Four scores are derived as percent: Absenteeism, Presenteeism, Work Productivity Loss, Activity Impairment. Each of 4 scores expressed as impairment percentages with a total possible score range of 0 to 100, high percentage= more impairment, less productivity.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Activity Impairment: Month 6-6.19 percentage impairmentStandard Deviation 27.67
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Absenteeism: Month 6-9.19 percentage impairmentStandard Deviation 22.91
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Absenteeism: Month 12-11.94 percentage impairmentStandard Deviation 30.569
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Presenteeism: Month 6-4.40 percentage impairmentStandard Deviation 22.376
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Presenteeism: Month 12-8.75 percentage impairmentStandard Deviation 22.472
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Work Productivity Loss: Month 6-9.67 percentage impairmentStandard Deviation 25.096
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Work Productivity Loss: Month 12-14.87 percentage impairmentStandard Deviation 30.538
Randomized Treatment Cohort: PlaceboChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Activity Impairment: Month 12-5.81 percentage impairmentStandard Deviation 24.87
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Activity Impairment: Month 12-12.64 percentage impairmentStandard Deviation 28.09
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Activity Impairment: Month 6-10.26 percentage impairmentStandard Deviation 29.843
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Presenteeism: Month 12-15.94 percentage impairmentStandard Deviation 33.201
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Absenteeism: Month 6-4.53 percentage impairmentStandard Deviation 20.707
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Work Productivity Loss: Month 12-18.77 percentage impairmentStandard Deviation 36.38
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Absenteeism: Month 12-8.00 percentage impairmentStandard Deviation 22.943
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Work Productivity Loss: Month 6-10.21 percentage impairmentStandard Deviation 33.012
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsChange From Baseline in Work Productivity and Activity Impairment: Specific Health Problem (WPAI:SHP) Score at Month 6 and 12Presenteeism: Month 6-8.48 percentage impairmentStandard Deviation 28.903
Secondary

Number of Participants Experiencing Any of the Adjudicated Events

Adjudicated Events reported included: Acute myocarditis; Death due to VT or VF; Sudden unexpected death (defined as occurring within one hour of symptom onset, or un- witnessed death); MACE (defined as the composite incidence of death, non- fatal recurrent MI, hospitalization for heart failure, emergency room treatment for heart failure, LVAD placement or heart transplant); New cardiac tumor formation on MRI imaging; Any hospitalization due to cardiovascular cause; Any inter-current cardiovascular illness or one related to CAP-1002 or placebo infusion, which prolongs hospitalization; New thrombolysis in myocardial infarction (TIMI) flow \<=1; Development of, or an increase in frequency of VT; Development of increased anti-human leukocyte antigen (anti-HLA) antibody levels (mean fluorescence intensity \[MFI\] \>= 1000; 5000) with development of sensitization to HLA antigens specific to CAP-1002 cardiosphere-derived cells donor.

Time frame: Up to Month 12 post-infusion

Population: Analysis was performed on safety population that included all participants in the primary randomization cohort who received investigational product. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsTIMI <= 10 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsAcute myocarditis0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsDeath due to VT/VF0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsSudden unexpected death0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsMACE5 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsCardiac tumor0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsCV hospitalization7 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsProlonged CV hospitalization0 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsVT1 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsDonor-specific antibody, MFI >= 10003 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants Experiencing Any of the Adjudicated EventsDonor-specific antibody, MFI >= 50001 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsVT0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsCV hospitalization10 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsAcute myocarditis0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsDonor-specific antibody, MFI >= 50001 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsDeath due to VT/VF0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsProlonged CV hospitalization0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsSudden unexpected death0 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsTIMI <= 10 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsMACE5 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsDonor-specific antibody, MFI >= 10005 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants Experiencing Any of the Adjudicated EventsCardiac tumor0 Participants
Secondary

Number of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12

New York Heart Association (NYHA) Classification: Class I Subject with cardiac disease but without resulting limitations of physical activity. Class II Subjects with cardiac disease resulting in slight limitation of physical activity. Class III Subjects with cardiac disease resulting in marked limitation of physical activity. Class IV Subjects with cardiac disease resulting in inability to carry on any physical activity without discomfort. Change from Baseline was calculated as lowest NYHA score on scheduled visits minus NYHA score at Baseline which resulted in possible ranges from -3 to +3. Decreasing scores indicate improvement.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 23 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 21 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 21 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 115 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 31 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 20 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: 011 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 113 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: 026 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 12 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 13 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 14 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 20 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 24 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: - 117 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: 028 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: + 15 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 20 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 12: + 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 23 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: - 124 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in New York Heart Association (NYHA) Class at Month 6 and 12Month 6: 045 Participants
Secondary

Number of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12

PGA will ask participants to assess how their overall status has changed since prior to receiving the therapy. Possible PGA responses are 0=none, 1=mild, 2=moderate, and 3=severe. Change from Baseline was calculated as lowest PGA score on scheduled visits minus PGA score at Baseline which resulted in possible ranges from -3 to +3. Decreasing scores indicate improvement.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 22 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 121 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 018 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 13 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 20 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 30 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 20 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 115 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 016 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 11 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 20 Participants
Randomized Treatment Cohort: PlaceboNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 020 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 31 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 26 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 22 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: - 123 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 25 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 039 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 13 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 17 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: - 122 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 22 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 12: + 30 Participants
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsNumber of Participants With Change From Baseline in Patient Global Assessment (PGA) Score at Month 6 and 12Month 6: + 30 Participants
Secondary

Percent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12

The regions assessed of the heart were: Anterior, Lateral, Inferior and Septal. Tissue mass recovery in the function of region receiving therapy expressed as percentage improvement was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 66.50 percent changeStandard Deviation 33.009
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 614.74 percent changeStandard Deviation 64.941
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 615.18 percent changeStandard Deviation 79.223
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 1223.83 percent changeStandard Deviation 131.511
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 122.33 percent changeStandard Deviation 18.196
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 6-3.17 percent changeStandard Deviation 15.117
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 12178.68 percent changeStandard Deviation 940.725
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 12-7.77 percent changeStandard Deviation 14.477
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 1215.29 percent changeStandard Deviation 91.948
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 62.99 percent changeStandard Deviation 42.147
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Anterior: Month 12-0.39 percent changeStandard Deviation 42.897
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Lateral: Month 615.09 percent changeStandard Deviation 61.698
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 126.22 percent changeStandard Deviation 75.838
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 614.61 percent changeStandard Deviation 86.589
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Inferior: Month 1278.79 percent changeStandard Deviation 382.48
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Function of the Region Receiving CAP-1002 Therapy at Month 6 and 12Septal: Month 61.41 percent changeStandard Deviation 42.721
Secondary

Percent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12

Percent change in infarct size was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 6-5.14 percent changeStandard Deviation 8.481
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 12-8.50 percent changeStandard Deviation 13.191
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 6-4.67 percent changeStandard Deviation 7.826
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Infarct Size (Scar Tissue Mass) at Month 6 and 12Month 12-8.86 percent changeStandard Deviation 11.249
Secondary

Percent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12

LVEF is the fraction of chamber volume ejected in systole (stroke volume) in relation to the volume of the blood in the ventricle at the end of diastole (end-diastolic volume). Percent change in LVEF was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 60.82 percent changeStandard Deviation 10.89
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 120.01 percent changeStandard Deviation 10.228
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 60.61 percent changeStandard Deviation 11.894
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular Ejection Fraction (LVEF) at Month 6 and 12Month 12-1.04 percent changeStandard Deviation 13.956
Secondary

Percent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12

LVEDV is the amount of blood in the heart's left ventricle just before the heart contracts. Percent change in LVEDV was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 65.64 percent changeStandard Deviation 10.742
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 124.68 percent changeStandard Deviation 12.91
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 62.02 percent changeStandard Deviation 11.203
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV) at Month 6 and 12Month 122.54 percent changeStandard Deviation 13.831
Secondary

Percent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12

LVESV is the amount of blood remaining in the ventricle at the end of systole, after the heart has contracted. Percent change in LVESV was assessed by magnetic resonance imaging. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 65.41 percent changeStandard Deviation 11.928
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 124.77 percent changeStandard Deviation 15.764
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 62.34 percent changeStandard Deviation 14.257
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Left Ventricular End Systolic Volume (LVESV) at Month 6 and 12Month 124.13 percent changeStandard Deviation 18.572
Secondary

Percent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12

Infarct size, expressed as a percentage, was calculated by dividing the sum of infarct areas from all sections by the sum of LV areas from all sections (including those without infarct scar) and multiplying by 100. Improvement in infarct size as a percent of LV mass was assessed by magnetic resonance imaging.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12Month 6-0.81 percent changeStandard Deviation 2.109
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12Month 12-1.31 percent changeStandard Deviation 2.684
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12Month 6-1.05 percent changeStandard Deviation 1.699
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Myocardium Mass Infarct Size at Month 6 and 12Month 12-1.83 percent changeStandard Deviation 2.432
Secondary

Percent Change From Baseline in Viable Mass at Month 6 and12

Percent change in viable mass was assessed by magnetic resonance imaging. Myocardial viable mass refers to myocardial cells that are alive after myocardial injury, according to cellular, metabolic and contractile functions. Percent change from Baseline was calculated as: Percent change = (post-baseline value-Baseline value)/Baseline value \*100%.

Time frame: Baseline, Month 6 and Month 12

Population: Analysis was performed on mITT population. Here, 'overall number of participants analyzed' = participants with available data for this outcome measure and 'number analyzed' = participants with available data for each specified category. Data for this outcome measure was not planned to be collected and reported for Phase 1 part of the study.

ArmMeasureGroupValue (MEAN)Dispersion
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Viable Mass at Month 6 and12Month 62.54 percent changeStandard Deviation 10.804
Randomized Treatment Cohort: PlaceboPercent Change From Baseline in Viable Mass at Month 6 and12Month 122.79 percent changeStandard Deviation 10.635
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Viable Mass at Month 6 and12Month 61.07 percent changeStandard Deviation 7.698
Randomized Treatment Cohort: CAP-1002 Allogeneic Cardiosphere-Derived CellsPercent Change From Baseline in Viable Mass at Month 6 and12Month 121.31 percent changeStandard Deviation 7.795

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026