| Recruiting | 2 | 66 | US | Belatacept, NULOJIX, Tacrolimus, Prograf, Mycophenolate Mofetil/Sodium, CellCept, Myfortic, Prednisone | National Institute of Allergy and Infectious Diseases (NIAID) | Heart Transplant | 01/28 | 01/28 | | |
| Active, not recruiting | 2 | 385 | US | tocilizumab, Actemra®, Placebo, Placebo for tocilizumab, Placebo for Actemra®, Standard of Care Triple IS, calcineurin inhibitor: (tacrolimus (Prograf ®)), anti-proliferative treatment: (mycophenolate mofetil ),, MMF, CellCept®, Myfortic®, enteric-coated mycophenolate sodium, steroids: methylprednisolone/prednisone | National Institute of Allergy and Infectious Diseases (NIAID), PPD | Heart Transplant | 04/25 | 04/25 | | |