The association between LRP1B mutation with TMB was analyzed in bladder cancer patients from the public immunotherapy-treated cohort...LRP1B mutation is associated with higher TMB in both public cohort(p=0.028)...Survival analysis in the public cohort demonstrated that LRP1B mutation resulted in significantly longer OS ( 16.8 vs 8.08 months; HR, 0.16; p=0.043) and a increasing trend on PFS without significant difference...