Efficacy and Safety of Allogeneic Mesenchymal Precursor Cells (Rexlemestrocel-L) for the Treatment of Heart Failure

Inclusion Criteria: * The participant is 18 to 80 years of age, inclusive; both men and women will be enrolled. * The participant has a diagnosis of chronic HF of ischemic or nonischemic etiology for at least 6 months * The participant is on stable, optimally tolerated dosages of HF therapies including beta-blockers (approved for country-specific usage), angiotensin-converting enzyme (ACE) inhibitors or angiotensin-receptor blockers (ARBs), and/or aldosterone antagonists, without change in dose for at least 1 month before study intervention * The participant is on a stable, outpatient, oral diuretic dosing regimen in which the participant remains clinically stable during screening. * Other Criteria apply, please contact the investigator Exclusion Criteria: * The participant has NYHA Functional Class I or Functional Class IV symptoms. * Other Criteria apply, please contact the investigator