scholarly journals Immune‐related adverse events as clinical biomarkers in metastatic renal cell carcinoma patients treated with immune checkpoint inhibitors

2021 ◽  
Author(s):  
Dylan J. Martini ◽  
Subir Goyal ◽  
Yuan Liu ◽  
Sean T. Evans ◽  
T. Anders Olsen ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Adverse Events ◽  
Cell Carcinoma ◽  
Metastatic Renal Cell Carcinoma ◽  
Immune Checkpoint ◽  
Renal Cell ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Clinical Biomarkers

scholarly journals Safety and efficacy of restarting immune checkpoint inhibitors after clinically significant immune-related adverse events in metastatic renal cell carcinoma

2020 ◽  
Vol 8 (1) ◽  
pp. e000144 ◽  
Author(s):  
Sarah Abou Alaiwi ◽  
Wanling Xie ◽  
Amin H Nassar ◽  
Shaan Dudani ◽  
Dylan Martini ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Adverse Events ◽  
Cell Carcinoma ◽  
Median Time ◽  
Immune Checkpoint ◽  
Renal Cell ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Safety And Efficacy ◽  
Clinically Significant

BackgroundImmune checkpoint inhibitors (ICI) induce a range of immune-related adverse events (irAEs) with various degrees of severity. While clinical experience with ICI retreatment following clinically significant irAEs is growing, the safety and efficacy are not yet well characterized.MethodsThis multicenter retrospective study identified patients with metastatic renal cell carcinoma treated with ICI who had >1 week therapy interruption for irAEs. Patients were classified into retreatment and discontinuation cohorts based on whether or not they resumed an ICI. Toxicity and clinical outcomes were assessed descriptively.ResultsOf 499 patients treated with ICIs, 80 developed irAEs warranting treatment interruption; 36 (45%) of whom were restarted on an ICI and 44 (55%) who permanently discontinued. Median time to initial irAE was similar between the retreatment and discontinuation cohorts (2.8 vs 2.7 months, p=0.59). The type and grade of irAEs were balanced across the cohorts; however, fewer retreatment patients required corticosteroids (55.6% vs 84.1%, p=0.007) and hospitalizations (33.3% vs 65.9%, p=0.007) for irAE management compared with discontinuation patients. Median treatment holiday before reinitiation was 0.9 months (0.2–31.6). After retreatment, 50% (n=18/36) experienced subsequent irAEs (12 new, 6 recurrent) with 7 (19%) grade 3 events and 13 drug interruptions. Median time to irAE recurrence after retreatment was 2.8 months (range: 0.3–13.8). Retreatment resulted in 6 (23.1%) additional responses in 26 patients whose disease had not previously responded. From first ICI initiation, median time to next therapy was 14.2 months (95% CI 8.2 to 18.9) and 9.0 months (5.3 to 25.8), and 2-year overall survival was 76% (95%CI 55% to 88%) and 66% (48% to 79%) in the retreatment and discontinuation groups, respectively.ConclusionsDespite a considerable rate of irAE recurrence with retreatment after a prior clinically significant irAE, most irAEs were low grade and controllable. Prospective studies are warranted to confirm that retreatment enhances survival outcomes that justify the safety risks.

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