ReviewBlood research2025
Atypical features of hepatic veno-occlusive disease/sinusoidal obstruction syndrome after inotuzumab ozogamicin in adult patients with acute lymphoblastic leukemia.
Review in Blood research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Clinical Implications of CD19-Negative Relapse Following CD19-Directed Therapy in B-Cell Acute Lymphoblastic Leukemia.American journal of hematology · 2026Article
- Chronic portal hypertension following inotuzumab ozogamicin in a low-risk patient: a case of overriding baseline risk and long-term management.Annals of hematology · 2026Article
- Novel Therapeutic Approaches in Pediatric Acute Lymphoblastic Leukemia.International journal of molecular sciences · 2025Review
- Real-world treatment outcome and toxicity analysis of inotuzumab ozogamicin in adult patients with relapsed or refractory B-cell precursor acute lymphoblastic leukemia: multicenter prospective observational study.Therapeutic advances in hematology · 2025Article
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeInotuzumab ozogamicin (INO) has demonstrated a safe bridging role to allogeneic hematopoietic stem cell transplantation (HSCT) in patients with relapsed or refractory B-cell acute lymphoblastic leukemia (R/R B-ALL). However, hepatic veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) is frequently observed. This study aimed to identify significant features of INO-associated VOD/SOS.
methodsWe reviewed seven cases of hepatic VOD/SOS that developed either during INO salvage or after allogeneic HSCT following INO-induced complete remission (CR). Diagnosis and severity grading of VOD/SOS were based on the revised criteria from the European Society for Blood and Marrow Transplantation. Defibrotide was used to treat severe to very severe cases.
resultsFour patients developed VOD/SOS during INO salvage therapy (at 21 and 36 days post-INO1, 77 days post-INO3, and 21 days post-INO5), while three were diagnosed at 2, 5, and 10 days post-HSCT following INO-induced CR. Doppler ultrasonography revealed preserved portal vein flow (range 10.2-26.0 cm/sec) and normal hepatic artery resistive index (RI, range 0.56-0.74) in all but one patient (RI 0.83). Despite this, all patients presented with massive ascites and progressively elevated total bilirubin levels. All cases were classified as severe to very severe; six were treated with defibrotide and one underwent liver transplantation. Most patients ultimately died owing to VOD/SOS progression.
conclusionPost-INO VOD/SOS manifested as two different clinical settings and was characterized by preserved portal vein flow, which complicated diagnosis. Despite timely defibrotide administration, clinical outcomes were poor. These findings emphasize the need for vigilance and potential consideration of prophylactic strategies for prevention of INO-associated VOD/SOS.
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