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Key clinical point: Prior treatment with gemtuzumab ozogamicin (GO) before allogeneic hematopoietic cell transplantation (allo-HCT) in pediatric patients with acute myeloid leukemia (AML) increased risk for veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) but did not affect survival.
Major finding: Compared with nonexposure, exposure to GO was associated with increased risk for VOD/SOS at 100 days (odds ratio, 2.26; P = .004). However, posttransplant overall survival (P = .43), disease-free survival (P = .20), relapse (P = .32), and nonrelapse mortality (P = .51) did not differ in patients with or without prior GO treatment.
Study details: Findings are from retrospective assessment of pediatric patients with AML who received myeloablative allo-HCT between 2008 and 2011 with (n=148) or without (n=348) prior GO treatment.
Disclosures: This study was funded by Pfizer. D Chirnomas, CJ Hoang, and FR Loberiza Jr declared being current/former employees of and/or had equity ownership in Pfizer. Other authors declared no conflicts of interest.
Source: Duncan C et al. Pediatr Blood Cancer. 2021 Apr 19. doi: 10.1002/pbc.29067.
Key clinical point: Prior treatment with gemtuzumab ozogamicin (GO) before allogeneic hematopoietic cell transplantation (allo-HCT) in pediatric patients with acute myeloid leukemia (AML) increased risk for veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) but did not affect survival.
Major finding: Compared with nonexposure, exposure to GO was associated with increased risk for VOD/SOS at 100 days (odds ratio, 2.26; P = .004). However, posttransplant overall survival (P = .43), disease-free survival (P = .20), relapse (P = .32), and nonrelapse mortality (P = .51) did not differ in patients with or without prior GO treatment.
Study details: Findings are from retrospective assessment of pediatric patients with AML who received myeloablative allo-HCT between 2008 and 2011 with (n=148) or without (n=348) prior GO treatment.
Disclosures: This study was funded by Pfizer. D Chirnomas, CJ Hoang, and FR Loberiza Jr declared being current/former employees of and/or had equity ownership in Pfizer. Other authors declared no conflicts of interest.
Source: Duncan C et al. Pediatr Blood Cancer. 2021 Apr 19. doi: 10.1002/pbc.29067.
Key clinical point: Prior treatment with gemtuzumab ozogamicin (GO) before allogeneic hematopoietic cell transplantation (allo-HCT) in pediatric patients with acute myeloid leukemia (AML) increased risk for veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) but did not affect survival.
Major finding: Compared with nonexposure, exposure to GO was associated with increased risk for VOD/SOS at 100 days (odds ratio, 2.26; P = .004). However, posttransplant overall survival (P = .43), disease-free survival (P = .20), relapse (P = .32), and nonrelapse mortality (P = .51) did not differ in patients with or without prior GO treatment.
Study details: Findings are from retrospective assessment of pediatric patients with AML who received myeloablative allo-HCT between 2008 and 2011 with (n=148) or without (n=348) prior GO treatment.
Disclosures: This study was funded by Pfizer. D Chirnomas, CJ Hoang, and FR Loberiza Jr declared being current/former employees of and/or had equity ownership in Pfizer. Other authors declared no conflicts of interest.
Source: Duncan C et al. Pediatr Blood Cancer. 2021 Apr 19. doi: 10.1002/pbc.29067.