Single Agent and Combined Inhibition After Allogeneic Stem Cell Transplant

Exclusion Criteria

• •1. Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Subjects with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment. There must also be no requirement for immunosuppressive doses of systemic corticosteroids (\> 20 mg/day prednisone equivalents) for at least 4 weeks prior to study drug administration. This exception does not include carcinomatous meningitis, which is excluded regardless of clinical stability. Note: Subjects are permitted to use topical, ocular, intra-articular, intranasal, and inhalational corticosteroids (with minimal systemic absorption). Physiologic replacement doses of systemic corticosteroids are permitted, even if \> 20 mg/day prednisone equivalents. A brief course of corticosteroids for prophylaxis (eg, contrast dye allergy) or for treatment of non-autoimmune conditions (eg, delayed-type hypersensitivity reaction caused by contact allergen) is permitted.
• •2. Is unable or unwilling to sign informed consent.
• •3. Has an active, known, or suspected autoimmune disease. Subjects are permitted to enroll if they have vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger
• •4. Patients should be excluded if they have a condition such as GVHD requiring systemic treatment with either corticosteroids (\> 20 mg daily prednisone equivalents) or other immunosuppressive medications within 4 weeks of study drug administration. Inhaled or topical steroids and adrenal replacement doses \> 20 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease. Note: Subjects are permitted to use topical, ocular, intra-articular, intranasal, and inhalation corticosteroids (with minimal systemic absorption). Physiologic replacement doses of systemic corticosteroids are permitted, even if \> 20 mg/day prednisone equivalents. A brief course of corticosteroids for prophylaxis (eg, contrast dye allergy) or for treatment of non-autoimmune conditions (eg, delayed-type hypersensitivity reaction caused by contact allergen) is permitted.
• •5. As there is potential for hepatictoxicity with nivolumab or nivolumab/ipilimumab combinations, drugs with a predisposition to hepatoxicity should be used with caution in patients treated with nivolumab-containing regimen.
• •6. Has received a prior allogeneic stem cell transplant.
• •7. Has a history of hypersensitivity to nivolumab, ipilimumab, or any of its excipients, or severe hypersensitivity reaction to any previous monoclonal antibody.
• •8. Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to Day 1 of checkpoint inhibitor treatment administration or who has not recovered (i.e., t administration mAb) within 4 weeks prior to t dose of trial treatment. Rituximab within that time frame is allowed.
• •9. Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment. Note: Subjects are permitted to use topical, ocular, intra-articular, intranasal, and inhalational corticosteroids (with minimal systemic absorption). Physiologic replacement doses of systemic corticosteroids are permitted, even if \> 20 mg/day prednisone equivalents. A brief course of corticosteroids for prophylaxis (eg, contrast dye allergy) or for treatment of non-autoimmune conditions (eg, delayed-type hypersensitivity reaction caused by contact allergen) is permitted.
• •10. Has known history of, or any evidence of active, non-infectious pneumonitis.
• •11. Has an active infection requiring intravenous systemic therapy.
• •12. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
• •13. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
• •14. Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment.
• •15. Has received prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2 agent, anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell costimulation or immune checkpoint pathways.
• •16. Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies) or known acquired immunodeficiency syndrome (AIDS).
• •17. Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA \[qualitative\] is detected).
• •18. Has the presence of a large accumulation of ascites or pleural effusions, which would be a contraindication to the administration of methotrexate for GVHD prophylaxis.
• •19. Has known history of grade 3 or 4 GVHD.