Infliximab in the treatment of tislelizumab-induced steroid-refractory immune checkpoint inhibitor-related pneumonia: case report and literature review
Abstract
Background Infliximab has been recommended by the American Society of Clinical Oncology (ASCO) guidelines for the treatment of steroid-refractory immune checkpoint inhibitor-related pneumonia (CIP), but clinical evidence remains insufficient. In order to improve the level of diagnosis and treatment and rational use of infliximab in the treatment of CIP, a successful case is reported and the relevant literature is reviewed. Case Description We report a 67-year-old male patient with small cell lung cancer (SCLC) who was admitted to hospital with rapidly worsening dyspnea and bilateral interstitial lung following PD-1 inhibitor (tislelizumab) combined with chemotherapy and radiation therapy. According to the comprehensive judgment of the patient’s medical history, clinical symptoms, imaging manifestations, laboratory tests, exclusion of infection, heart failure and treatment response, the diagnosis of grade 4 CIP was made. The patient’s condition did not improve after high-dose glucocorticoid and immunoglobulin therapy. After infliximab was added, the clinical manifestations and imaging were significantly improved, oxygenation index also gradually return to normal, then the patient was discharged smoothly. Conclusions This report suggests that infliximab should be considered when high-dose glucocorticoids combined with immunoglobulin are ineffective for severe CIP. At the same time, this case indicates that inflammatory factors, especially tumor necrosis factor (TNF-α), may be…
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