|   | 
        Naïve patients
          (N=407) | 
        Switch
          (N=696) | 
        Failure
          (N=601) | 
       
      
        | Treatment duration before     discontinuation | 
        [0-6[ months
          (N=93) | 
        ≥ 6 months
          (N=55) | 
        Total
          (N=148) | 
        [0-6[ months
          (N=93) | 
        ≥ 6 months (N=73) | 
        Total
          (N=166) | 
        [0-6[ months
          (N=120) | 
        ≥ 6 months
          (N=131) | 
        Total
          (N=251) | 
       
      
        | Intolerance, N (%) | 
        47 (11.5) | 
        9 (2.5) | 
        56 (14) | 
        68 (10) | 
        22 (3) | 
        90 (13) | 
        65 (11) | 
        23 (4) | 
        88 (15) | 
       
      
        | Suspected hypersensitivity, N (%)  | 
        27 (6.6) | 
        3 (0.7) | 
        30 (7.3) | 
        40 (5.7) | 
        2 (0.3) | 
        42 (6) | 
        46 (7.6) | 
        2 (0.3) | 
        48 (7.9) | 
       
      
        | Treatment failure, N (%) | 
        6 (2) | 
        17 (4) | 
        23 (6) | 
        2 (1) | 
        16 (2) | 
        18 (3) | 
        7 (1) | 
        66 (11) | 
        73 (12) | 
       
      
        | Other, including non adherence, N (%) | 
        40 (10) | 
        29 (7) | 
        69 (17) | 
        23 (3.3) | 
        35 (5) | 
        58 (8.3) | 
        48 (8) | 
        42 (7) | 
        90 (15) | 
       
      |