PURPOSE OF REVIEW: Chimeric antigen receptor (CAR) T-cell therapy has marked a historic milestone for its remission rates in relapsed/refractory hematological neoplasms. Despite favorable efficacy outcomes, CAR T-cells are associated with potentially severe early and late complications, such as cytokine release syndrome (CRS), neurotoxicity, acute kidney injury (AKI), cytopenias and infections.

RECENT FINDINGS: AKI is a common complication that normally manifests during the first week following infusion and typically shows recovery within the first month. The risk factors for AKI development include a prior history of chronic kidney disease (CKD), development of CRS or neurotoxicity, antibiotic therapy and the use of intravenous contrast, amongst others.

SUMMARY: AKI a frequent but mild complication, with fast recovery. Future multicentric prospective studies are required to investigate the pathophysiology of AKI following CAR T-cell therapy and the potential preventive treatments. Furthermore, the impact of AKI secondary to CAR T-cell treatment in patients with prior CKD has not been analyzed in long-term follow-up studies.