Table 1.

Patient and Clinical Characteristics (N = 147)

CharacteristicNo. (%)
Patient characteristics
 Age, y, median (range; IQR)62 (23–82; 53–71)
 Sex
  Female31 (21.1)
  Male116 (78.9)
 Hospital admission
  Emergency134 (91.2)
  Scheduled9 (6.1)
  Other4 (2.7)
Infection
 Site of primary infection
  Respiratory96 (65.3)
  BSI (catheter related)16 (10.9)
  BSI (unknown source)23 (15.6)
  Othera12 (8.2)
 Secondary BSI47 (32.0)
 Polymicrobial infection36 (24.5)
ICU/ventilation
 Any time in ICU136 (92.5)
 Time in ICU, d, median (IQR)37 (23.5–51.0)
 In ICU receiving mechanical ventilation116/136 (85.3)
 Respiratory infection and receiving mechanical ventilation82/96 (85.4)
 Ventilator-associated respiratory infection
  VAP70/82 (85.4)
  V-HAP11/82 (13.4)
  Unknownb1/82 (1.2)
 ECMO during hospitalization22 (15.0)
Patient status and comorbidities
 Septic shockc70/126 (55.6)
 COVID-19 during hospitalization120 (81.6)
 Septic shockc and COVID-19 during hospitalization58 (39.5)
 SOFA scored quartile (score range) in ICU, no./No. (median score)
  1 (0–5)35/131 (3)
  2 (6–9)44/131 (8)
  3 (10–11)32/131 (11)
  4 (12–17)20/131 (13)
Treatment regimen
 No. of prior antimicrobial therapiese
  022 (15.0)
  135 (23.8)
  248 (32.7)
  329 (19.7)
  410 (6.8)
  ≥53 (2.0)
 Prior antimicrobial therapye,f
  Colistin86 (58.5)
  Meropenem62 (42.2)
  Tigecycline40 (27.2)
  Piperacillin/tazobactam22 (15.0)
  Ampicillin/sulbactam13 (8.8)
 Reason for discontinuation of prior antimicrobial therapyg
  Lack of resolution65 (44.2)
  New resistance34 (23.1)
  Adverse events5 (3.4)
  Other19 (12.9)
 Duration of cefiderocol treatment, d, median (IQR)10.0 (8.0–15.0)
 Cefiderocol administered as monotherapy 49 (33.3)
  Septic shockc present21/42 (50.0)
  SOFA scored, median (IQR)7.5 (3.0–9.0)
 Cefiderocol administered as combination therapy98 (66.7)
  Septic shockc present49/84 (58.3)
  SOFA scored, median (IQR)9.0 (7.0–11.0)
 Antibiotic therapy started with cefiderocol administration
  Colistin27 (18.4)
  Tigecycline22 (15.0)
  Fosfomycin19 (12.9)
  Meropenem3 (2.0)
  Ampicillin/sulbactam2 (1.4)
  Trimethoprim/sulfamethoxazole2 (1.4)
  Other12 (8.2)
CharacteristicNo. (%)
Patient characteristics
 Age, y, median (range; IQR)62 (23–82; 53–71)
 Sex
  Female31 (21.1)
  Male116 (78.9)
 Hospital admission
  Emergency134 (91.2)
  Scheduled9 (6.1)
  Other4 (2.7)
Infection
 Site of primary infection
  Respiratory96 (65.3)
  BSI (catheter related)16 (10.9)
  BSI (unknown source)23 (15.6)
  Othera12 (8.2)
 Secondary BSI47 (32.0)
 Polymicrobial infection36 (24.5)
ICU/ventilation
 Any time in ICU136 (92.5)
 Time in ICU, d, median (IQR)37 (23.5–51.0)
 In ICU receiving mechanical ventilation116/136 (85.3)
 Respiratory infection and receiving mechanical ventilation82/96 (85.4)
 Ventilator-associated respiratory infection
  VAP70/82 (85.4)
  V-HAP11/82 (13.4)
  Unknownb1/82 (1.2)
 ECMO during hospitalization22 (15.0)
Patient status and comorbidities
 Septic shockc70/126 (55.6)
 COVID-19 during hospitalization120 (81.6)
 Septic shockc and COVID-19 during hospitalization58 (39.5)
 SOFA scored quartile (score range) in ICU, no./No. (median score)
  1 (0–5)35/131 (3)
  2 (6–9)44/131 (8)
  3 (10–11)32/131 (11)
  4 (12–17)20/131 (13)
Treatment regimen
 No. of prior antimicrobial therapiese
  022 (15.0)
  135 (23.8)
  248 (32.7)
  329 (19.7)
  410 (6.8)
  ≥53 (2.0)
 Prior antimicrobial therapye,f
  Colistin86 (58.5)
  Meropenem62 (42.2)
  Tigecycline40 (27.2)
  Piperacillin/tazobactam22 (15.0)
  Ampicillin/sulbactam13 (8.8)
 Reason for discontinuation of prior antimicrobial therapyg
  Lack of resolution65 (44.2)
  New resistance34 (23.1)
  Adverse events5 (3.4)
  Other19 (12.9)
 Duration of cefiderocol treatment, d, median (IQR)10.0 (8.0–15.0)
 Cefiderocol administered as monotherapy 49 (33.3)
  Septic shockc present21/42 (50.0)
  SOFA scored, median (IQR)7.5 (3.0–9.0)
 Cefiderocol administered as combination therapy98 (66.7)
  Septic shockc present49/84 (58.3)
  SOFA scored, median (IQR)9.0 (7.0–11.0)
 Antibiotic therapy started with cefiderocol administration
  Colistin27 (18.4)
  Tigecycline22 (15.0)
  Fosfomycin19 (12.9)
  Meropenem3 (2.0)
  Ampicillin/sulbactam2 (1.4)
  Trimethoprim/sulfamethoxazole2 (1.4)
  Other12 (8.2)

Data are from time of cefiderocol initiation and are presented as No. (%) or no./No. (%) unless otherwise indicated.

Abbreviations: BSI, bloodstream infection; COVID-19, coronavirus disease 2019; ECMO, extracorporeal membrane oxygenation; ICU, intensive care unit; IQR, interquartile range; SOFA, Sequential Organ Failure Assessment; VAP, ventilator-associated pneumonia; V-HAP, ventilated hospital-acquired pneumonia.

a

Included other (n = 4), skin and soft tissue infections (n = 3), bone or joint infections (n = 2), intra-abdominal infections (n = 2), and urinary tract infection (n = 1).

b

Unknown time of mechanical ventilation initiation.

c

Septic shock was defined as a score of 3 or 4 on the cardiovascular domain on the SOFA score.

d

SOFA scores of 0 were imputed for individual SOFA domains where data were missing, providing a value was recorded for at least 1 of the 6 SOFA domains.

e

Therapies suitable for gram-negative infections used to treat Acinetobacter spp infections.

f

Five most frequently used antimicrobials are shown. Patients may have received ≥1 antimicrobial prior to cefiderocol.

g

Reasons per prior antimicrobial are shown.

Table 1.

Patient and Clinical Characteristics (N = 147)

CharacteristicNo. (%)
Patient characteristics
 Age, y, median (range; IQR)62 (23–82; 53–71)
 Sex
  Female31 (21.1)
  Male116 (78.9)
 Hospital admission
  Emergency134 (91.2)
  Scheduled9 (6.1)
  Other4 (2.7)
Infection
 Site of primary infection
  Respiratory96 (65.3)
  BSI (catheter related)16 (10.9)
  BSI (unknown source)23 (15.6)
  Othera12 (8.2)
 Secondary BSI47 (32.0)
 Polymicrobial infection36 (24.5)
ICU/ventilation
 Any time in ICU136 (92.5)
 Time in ICU, d, median (IQR)37 (23.5–51.0)
 In ICU receiving mechanical ventilation116/136 (85.3)
 Respiratory infection and receiving mechanical ventilation82/96 (85.4)
 Ventilator-associated respiratory infection
  VAP70/82 (85.4)
  V-HAP11/82 (13.4)
  Unknownb1/82 (1.2)
 ECMO during hospitalization22 (15.0)
Patient status and comorbidities
 Septic shockc70/126 (55.6)
 COVID-19 during hospitalization120 (81.6)
 Septic shockc and COVID-19 during hospitalization58 (39.5)
 SOFA scored quartile (score range) in ICU, no./No. (median score)
  1 (0–5)35/131 (3)
  2 (6–9)44/131 (8)
  3 (10–11)32/131 (11)
  4 (12–17)20/131 (13)
Treatment regimen
 No. of prior antimicrobial therapiese
  022 (15.0)
  135 (23.8)
  248 (32.7)
  329 (19.7)
  410 (6.8)
  ≥53 (2.0)
 Prior antimicrobial therapye,f
  Colistin86 (58.5)
  Meropenem62 (42.2)
  Tigecycline40 (27.2)
  Piperacillin/tazobactam22 (15.0)
  Ampicillin/sulbactam13 (8.8)
 Reason for discontinuation of prior antimicrobial therapyg
  Lack of resolution65 (44.2)
  New resistance34 (23.1)
  Adverse events5 (3.4)
  Other19 (12.9)
 Duration of cefiderocol treatment, d, median (IQR)10.0 (8.0–15.0)
 Cefiderocol administered as monotherapy 49 (33.3)
  Septic shockc present21/42 (50.0)
  SOFA scored, median (IQR)7.5 (3.0–9.0)
 Cefiderocol administered as combination therapy98 (66.7)
  Septic shockc present49/84 (58.3)
  SOFA scored, median (IQR)9.0 (7.0–11.0)
 Antibiotic therapy started with cefiderocol administration
  Colistin27 (18.4)
  Tigecycline22 (15.0)
  Fosfomycin19 (12.9)
  Meropenem3 (2.0)
  Ampicillin/sulbactam2 (1.4)
  Trimethoprim/sulfamethoxazole2 (1.4)
  Other12 (8.2)
CharacteristicNo. (%)
Patient characteristics
 Age, y, median (range; IQR)62 (23–82; 53–71)
 Sex
  Female31 (21.1)
  Male116 (78.9)
 Hospital admission
  Emergency134 (91.2)
  Scheduled9 (6.1)
  Other4 (2.7)
Infection
 Site of primary infection
  Respiratory96 (65.3)
  BSI (catheter related)16 (10.9)
  BSI (unknown source)23 (15.6)
  Othera12 (8.2)
 Secondary BSI47 (32.0)
 Polymicrobial infection36 (24.5)
ICU/ventilation
 Any time in ICU136 (92.5)
 Time in ICU, d, median (IQR)37 (23.5–51.0)
 In ICU receiving mechanical ventilation116/136 (85.3)
 Respiratory infection and receiving mechanical ventilation82/96 (85.4)
 Ventilator-associated respiratory infection
  VAP70/82 (85.4)
  V-HAP11/82 (13.4)
  Unknownb1/82 (1.2)
 ECMO during hospitalization22 (15.0)
Patient status and comorbidities
 Septic shockc70/126 (55.6)
 COVID-19 during hospitalization120 (81.6)
 Septic shockc and COVID-19 during hospitalization58 (39.5)
 SOFA scored quartile (score range) in ICU, no./No. (median score)
  1 (0–5)35/131 (3)
  2 (6–9)44/131 (8)
  3 (10–11)32/131 (11)
  4 (12–17)20/131 (13)
Treatment regimen
 No. of prior antimicrobial therapiese
  022 (15.0)
  135 (23.8)
  248 (32.7)
  329 (19.7)
  410 (6.8)
  ≥53 (2.0)
 Prior antimicrobial therapye,f
  Colistin86 (58.5)
  Meropenem62 (42.2)
  Tigecycline40 (27.2)
  Piperacillin/tazobactam22 (15.0)
  Ampicillin/sulbactam13 (8.8)
 Reason for discontinuation of prior antimicrobial therapyg
  Lack of resolution65 (44.2)
  New resistance34 (23.1)
  Adverse events5 (3.4)
  Other19 (12.9)
 Duration of cefiderocol treatment, d, median (IQR)10.0 (8.0–15.0)
 Cefiderocol administered as monotherapy 49 (33.3)
  Septic shockc present21/42 (50.0)
  SOFA scored, median (IQR)7.5 (3.0–9.0)
 Cefiderocol administered as combination therapy98 (66.7)
  Septic shockc present49/84 (58.3)
  SOFA scored, median (IQR)9.0 (7.0–11.0)
 Antibiotic therapy started with cefiderocol administration
  Colistin27 (18.4)
  Tigecycline22 (15.0)
  Fosfomycin19 (12.9)
  Meropenem3 (2.0)
  Ampicillin/sulbactam2 (1.4)
  Trimethoprim/sulfamethoxazole2 (1.4)
  Other12 (8.2)

Data are from time of cefiderocol initiation and are presented as No. (%) or no./No. (%) unless otherwise indicated.

Abbreviations: BSI, bloodstream infection; COVID-19, coronavirus disease 2019; ECMO, extracorporeal membrane oxygenation; ICU, intensive care unit; IQR, interquartile range; SOFA, Sequential Organ Failure Assessment; VAP, ventilator-associated pneumonia; V-HAP, ventilated hospital-acquired pneumonia.

a

Included other (n = 4), skin and soft tissue infections (n = 3), bone or joint infections (n = 2), intra-abdominal infections (n = 2), and urinary tract infection (n = 1).

b

Unknown time of mechanical ventilation initiation.

c

Septic shock was defined as a score of 3 or 4 on the cardiovascular domain on the SOFA score.

d

SOFA scores of 0 were imputed for individual SOFA domains where data were missing, providing a value was recorded for at least 1 of the 6 SOFA domains.

e

Therapies suitable for gram-negative infections used to treat Acinetobacter spp infections.

f

Five most frequently used antimicrobials are shown. Patients may have received ≥1 antimicrobial prior to cefiderocol.

g

Reasons per prior antimicrobial are shown.

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