PMID- 38339248 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240212 IS - 2072-6694 (Print) IS - 2072-6694 (Electronic) IS - 2072-6694 (Linking) VI - 16 IP - 3 DP - 2024 Jan 24 TI - Nivolumab Plus 5-Azacitidine in Pediatric Relapsed/Refractory Acute Myeloid Leukemia (AML): Phase I/II Trial Results from the Therapeutic Advances in Childhood Leukemia and Lymphoma (TACL) Consortium. LID - 10.3390/cancers16030496 [doi] LID - 496 AB - Improvements in survival have been made over the past two decades for childhood acute myeloid leukemia (AML), but the approximately 40% of patients who relapse continue to have poor outcomes. A combination of checkpoint-inhibitor nivolumab and azacitidine has demonstrated improvements in median survival in adults with AML. This phase I/II study with nivolumab and azacitidine in children with relapsed/refractory AML (NCT03825367) was conducted through the Therapeutic Advances in Childhood Leukemia & Lymphoma consortium. Thirteen patients, median age 13.7 years, were enrolled. Patients had refractory disease with multiple reinduction attempts. Twelve evaluable patients were treated at the recommended phase II dose (established at dose level 1, 3 mg/kg/dose). Four patients (33%) maintained stable disease. This combination was well tolerated, with no dose-limiting toxicities observed. Grade 3-4 adverse events (AEs) were primarily hematological. Febrile neutropenia was the most common AE >/= grade 3. A trend to improved quality of life was noted. Increases in CD8+ T cells and reductions in CD4+/CD8+ T cells and demethylation were observed. The combination was well tolerated and had an acceptable safety profile in pediatric patients with relapsed/refractory AML. Future studies might explore this combination for the maintenance of remission in children with AML at high risk of relapse. FAU - Verma, Anupam AU - Verma A AUID- ORCID: 0000-0001-6555-7924 AD - Center for Cancer and Blood Disorders, Pediatric Hematology Oncology Branch, Children's National Hospital, Washington, DC 20010, USA. AD - Division of Pediatric Hematology Oncology, Primary Children's Hospital, University of Utah, Salt Lake City, UT 84113, USA. FAU - Chi, Yueh-Yun AU - Chi YY AD - Division of Hematology-Oncology, Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90027, USA. FAU - Malvar, Jemily AU - Malvar J AD - Division of Hematology-Oncology, Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA. FAU - Lamble, Adam AU - Lamble A AD - Department of Pediatric Hematology Oncology, Seattle Children's Hospital, Seattle, WA 98105, USA. FAU - Chaudhury, Sonali AU - Chaudhury S AD - Department of Pediatric Hematology Oncology, Ann and Robert Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA. FAU - Agarwal, Archana AU - Agarwal A AD - Department of Pathology, University of Utah and ARUP Laboratories, Salt Lake City, UT 84108, USA. FAU - Li, Hong-Tao AU - Li HT AUID- ORCID: 0000-0001-6366-0741 AD - Department of Urology, University of Southern California, Los Angeles, CA 90033, USA. FAU - Liang, Gangning AU - Liang G AD - Department of Urology, University of Southern California, Los Angeles, CA 90033, USA. FAU - Leong, Roy AU - Leong R AD - Division of Hematology-Oncology, Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA. FAU - Brown, Patrick A AU - Brown PA AD - Bristol Myers Squibb, Princeton, NJ 08543, USA. FAU - Kaplan, Joel AU - Kaplan J AD - Department of Pediatric Hematology Oncology, Atrium Health Levine Children's Hospital, Wake Forrest University, Charlotte, NC 28203, USA. FAU - Schafer, Eric S AU - Schafer ES AD - Division of Pediatric Hematology/Oncology, Baylor College of Medicine, Texas Children's Cancer and Hematology Center, Houston, TX 77030, USA. FAU - Slone, Tamra AU - Slone T AD - Department of Pediatric Hematology Oncology, UT Southwestern, Dallas, TX 75235, USA. FAU - Pauly, Melinda AU - Pauly M AD - Department of Pediatric Hematology Oncology, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA. FAU - Chang, Bill H AU - Chang BH AUID- ORCID: 0000-0003-3783-1820 AD - Division of Pediatric Hematology Oncology, Oregon Health and Science University, Portland, OR 97239, USA. FAU - Stieglitz, Elliot AU - Stieglitz E AUID- ORCID: 0000-0001-7032-4623 AD - Department of Pediatric Oncology, University of California, San Francisco Benioff Children's Hospitals, San Francisco, CA 94158, USA. FAU - Wayne, Alan S AU - Wayne AS AD - Division of Hematology-Oncology, Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90027, USA. FAU - Hijiya, Nobuko AU - Hijiya N AUID- ORCID: 0000-0002-0199-054X AD - Division of Pediatric Hematology Oncology and Stem Cell Transplant, Columbia University Medical Center, New York, NY 10032, USA. FAU - Bhojwani, Deepa AU - Bhojwani D AD - Division of Hematology-Oncology, Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90027, USA. LA - eng GR - G-17-500/Gateway for Cancer Research/ GR - CA209-9JY/Bristol Myers Squibb/ PT - Journal Article DEP - 20240124 PL - Switzerland TA - Cancers (Basel) JT - Cancers JID - 101526829 PMC - PMC10854518 OTO - NOTNLM OT - DNA methylation OT - acute myeloid leukemia OT - checkpoint inhibitor OT - dose-limiting toxicity OT - immunotherapy COIS- G.L. is a consultant for PANGEA laboratory; A.S.W. receives research support from Kite a Gilead company; S.C. is a consultant for Abbvie, Alexion, BluebirdBio; N.H. receives research support from Novartis, Pfizer, is a consultant for Novartis and Stemline Therapeutics and on DSMB for Incyte; P.A.B. is employed by Bristol Myers-Squibb and holds stock in BMS; A.V., Y.-Y.C., J.M., D.B., E.S.S. and B.H.C. do not have any conflicts of interest to report. EDAT- 2024/02/10 10:47 MHDA- 2024/02/10 10:48 PMCR- 2024/01/24 CRDT- 2024/02/10 01:14 PHST- 2023/12/06 00:00 [received] PHST- 2024/01/11 00:00 [revised] PHST- 2024/01/19 00:00 [accepted] PHST- 2024/02/10 10:48 [medline] PHST- 2024/02/10 10:47 [pubmed] PHST- 2024/02/10 01:14 [entrez] PHST- 2024/01/24 00:00 [pmc-release] AID - cancers16030496 [pii] AID - cancers-16-00496 [pii] AID - 10.3390/cancers16030496 [doi] PST - epublish SO - Cancers (Basel). 2024 Jan 24;16(3):496. doi: 10.3390/cancers16030496.