TY - JOUR
T1 - A Pilot Trial of Lirilumab With or Without Azacitidine for Patients With Myelodysplastic Syndrome
AU - Yalniz, Fevzi Firat
AU - Daver, Naval
AU - Rezvani, Katayoun
AU - Kornblau, Steven
AU - Ohanian, Maro
AU - Borthakur, Gautam
AU - DiNardo, Courtney D.
AU - Konopleva, Marina
AU - Burger, Jan
AU - Gasior, Yvonne
AU - Pierce, Sherry
AU - Kantarjian, Hagop
AU - Garcia-Manero, Guillermo
N1 - Publisher Copyright:
© 2018 Elsevier Inc.
PY - 2018/10
Y1 - 2018/10
N2 - We report the results of a prospective trial of lirilumab in patients with myelodysplastic syndrome (MDS). A total of 10 patients were included. Higher-risk patients received lirilumab with azacitidine, lower-risk patients received single-agent lirilumab. Two patients achieved complete remission (CR) and 5 achieved marrow CR. Although the small sample size precludes definitive conclusions, the results of this study indicate the efficacy and safety of lirilumab in patients with MDS. Background: Enhancement of natural killer cell activity by blocking interactions between killer immunoglobulin (Ig)-like receptors (KIRs) and human leukocyte antigen-C (HLA-C) molecules can improve outcomes in myeloid malignancies. Lirilumab is a human IgG4 monoclonal antibody that blocks KIR/HLA-C interaction. We designed a study to evaluate the safety and efficacy of lirilumab as a single agent and in combination with azacitidine in patients with myelodysplastic syndrome (MDS). Patients and Methods: Adult patients with MDS who had not received previous hypomethylating agents were included. Lower-risk MDS patients received single-agent lirilumab (3 mg/kg); higher-risk patients received azacitidine (75 mg/m2/day for 7 days) in combination with lirilumab (3 mg/kg, on day 7), in a 28-day cycle. Responses were evaluated according to 2006 International Working Group criteria. Results: A total of 10 patients including 8 with higher and 2 with lower-risk enrolled. The median age was 70 (range, 50-84) years and 4 (40%) had complex cytogenetics. Baseline molecular mutations included TP53 (n = 5), TET2 (n = 3), and NRAS (n = 2). Patients received a median of 4 (range, 2-13) and 9 (range, 5-14) cycles of treatment with azacitidine with lirilumab and single-agent lirilumab, respectively. Two patients achieved complete remission (CR), 5 marrow CR, and 3 had stable disease. The median event-free survival for the entire cohort was 8 months (95% confidence interval, 4 months to not reached), and the median overall survival has not yet been reached. Five patients experienced 8 episodes of Grade ≥3 adverse events attributable to study drug, with the most frequent being infection or neutropenic fever (75%). Conclusion: Lirilumab either as a single agent as well as used in combination with azacitidine has clinical activity in patients with MDS. Further studies are needed to confirm our findings.
AB - We report the results of a prospective trial of lirilumab in patients with myelodysplastic syndrome (MDS). A total of 10 patients were included. Higher-risk patients received lirilumab with azacitidine, lower-risk patients received single-agent lirilumab. Two patients achieved complete remission (CR) and 5 achieved marrow CR. Although the small sample size precludes definitive conclusions, the results of this study indicate the efficacy and safety of lirilumab in patients with MDS. Background: Enhancement of natural killer cell activity by blocking interactions between killer immunoglobulin (Ig)-like receptors (KIRs) and human leukocyte antigen-C (HLA-C) molecules can improve outcomes in myeloid malignancies. Lirilumab is a human IgG4 monoclonal antibody that blocks KIR/HLA-C interaction. We designed a study to evaluate the safety and efficacy of lirilumab as a single agent and in combination with azacitidine in patients with myelodysplastic syndrome (MDS). Patients and Methods: Adult patients with MDS who had not received previous hypomethylating agents were included. Lower-risk MDS patients received single-agent lirilumab (3 mg/kg); higher-risk patients received azacitidine (75 mg/m2/day for 7 days) in combination with lirilumab (3 mg/kg, on day 7), in a 28-day cycle. Responses were evaluated according to 2006 International Working Group criteria. Results: A total of 10 patients including 8 with higher and 2 with lower-risk enrolled. The median age was 70 (range, 50-84) years and 4 (40%) had complex cytogenetics. Baseline molecular mutations included TP53 (n = 5), TET2 (n = 3), and NRAS (n = 2). Patients received a median of 4 (range, 2-13) and 9 (range, 5-14) cycles of treatment with azacitidine with lirilumab and single-agent lirilumab, respectively. Two patients achieved complete remission (CR), 5 marrow CR, and 3 had stable disease. The median event-free survival for the entire cohort was 8 months (95% confidence interval, 4 months to not reached), and the median overall survival has not yet been reached. Five patients experienced 8 episodes of Grade ≥3 adverse events attributable to study drug, with the most frequent being infection or neutropenic fever (75%). Conclusion: Lirilumab either as a single agent as well as used in combination with azacitidine has clinical activity in patients with MDS. Further studies are needed to confirm our findings.
KW - Anti-KIR therapy
KW - Azacitidine
KW - Lirilumab
KW - Myelodysplastic syndrome
KW - Natural killer cells
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U2 - 10.1016/j.clml.2018.06.011
DO - 10.1016/j.clml.2018.06.011
M3 - Article
C2 - 30001986
AN - SCOPUS:85049566514
SN - 2152-2650
VL - 18
SP - 658-663.e2
JO - Clinical Lymphoma, Myeloma and Leukemia
JF - Clinical Lymphoma, Myeloma and Leukemia
IS - 10
ER -