MedPath

A Study to Determine the Efficacy, Safety and Tolerability of Aztreonam-Avibactam (ATM-AVI) ± Metronidazole (MTZ) Versus Meropenem (MER) ± Colistin (COL) for the Treatment of Serious Infections Due to Gram Negative Bacteria.

Phase 3
Completed
Conditions
Complicated Intra-abdominal Infection
Hosptial Acquired Pneumonia
Ventilator Associated Pneumonia
Interventions
Drug: ATM-AVI
Drug: MER
Drug: MTZ
Drug: COL
Registration Number
NCT03329092
Lead Sponsor
Pfizer
Brief Summary

A Phase 3 comparative study to determine the efficacy, safety and tolerability of Aztreonam-Avibactam (ATM-AVI) ± Metronidazole (MTZ) versus Meropenem (MER) ± Colistin (COL) for the treatment of serious infections due to Gram negative bacteria.

Detailed Description

A Phase 3 Prospective, Randomized, Multicenter, Open Label, Central Assessor Blinded, Parallel Group, Comparative Study To Determine The Efficacy, Safety And Tolerability Of Aztreonam-Avibactam (ATM-AVI) ± Metronidazole (MTZ) Versus Meropenem±Colistin (MER±COL) For The Treatment Of Serious Infections Due To Gram Negative Bacteria, Including Metallo Β Lactamase (MBL) - Producing Multidrug Resistant Pathogens, For Which There Are Limited Or No Treatment Options

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
422
Inclusion Criteria

All subjects:

  1. Male or female from 18 years of age
  2. Provision of informed consent
  3. Confirmed diagnosis of HAP/VAP or cIAI requiring iv antibiotic treatment
  4. Female patients are authorized to participate in this clinical study if criteria concerning pregnancy avoidance stated in the protocol are met and negative pregnancy test

Additional for cIAI:

  1. Diagnosis of cIAI, EITHER:

    Intra-operative/postoperative enrolment with visual confirmation of cIAI. OR Preoperative enrollment with evidence of systemic inflammatory response, physical and radiological findings consistent with cIAI; confirmation of cIAI at time of surgery within 24 hours of study entry

  2. Surgical intervention within 24 hours (before or after) the administration of the first dose of study drug

Additional for HAP/VAP:

  1. Onset symptoms > 48h after admission to or <7 days after discharge from an inpatient care facility
  2. New or worsening infiltrate on CXR or CT scan
  3. Clinical signs and symptoms and laboratory findings consistent with HAP/VAP
  4. Respiratory specimen obtained for Gram stain and culture following onset of symptoms and prior to randomisation

Exclusion criteria:

All subjects:

  1. APACHE II score > 30
  2. Confirmed or suspected infection caused by Gram-negative species not expected to respond to study drug, or Gram-positive species
  3. Receipt of >24 hr systemic antibiotic within 48h prior to randomisation (exception in case of treatment failure)
  4. History of serious allergy, hypersensitivity (eg, anaphylaxis), or any serious reaction to aztreonam, carbapenem,monobactam or other β-lactam antibiotics, avibactam, nitroimidazoles or metronidazole, or any of the excipients of the study drugs
  5. Known Clostridium difficle associated diarrhoea
  6. Requirement for effective concomitant systemic antibacterials or antifungals
  7. Creatinine clearance ≤15 ml/min or requirement or expectation for renal replacement therapy
  8. Acute hepatitis, cirrhosis, acute hepatic failure, chronic hepatic failure
  9. Hepatic disease as indicated by AST or ALT >3 × ULN. Patients with AST and/or ALT up to 5 × ULN are eligible if acute and documented by the investigator as being directly related infectious process
  10. Patient has a total bilirubin >2 × ULN, unless isolated hyperbilirubinemia is directly related to infectious process or due to known Gilbert's disease
  11. ALP >3 × ULN. Patients with values >3 × ULN and <5 x ULN are eligible if acute and directly related to the infectious process being treated
  12. Absolute neutrophil count <500/mm3
  13. Pregnant or breastfeeding or if of child bearing potential, not using a medically accepted effective method of birth control.
  14. Any other condition that may confound the results of the study or pose additional risks to the subject
  15. Unlikely to comply with protocol
  16. History of epilepsy or seizure disorders excluding febrile seizures of childhood

Additional for cIAI

  1. Diagnosis of abdominal wall abscess; small bowel obstruction or ischemic bowel disease without perforation; traumatic bowel perforation with surgery within 12 hours of diagnosis; perforation of gastroduodenal ulcer with surgery < 24 hours of diagnosis primary etiology is not likely to be infectious
  2. Simple cholecystitis, gangrenous cholecystitis without rupture, simple appendicitis, acute suppurative cholangitis, infected necrotizing pancreatitis, pancreatic abscess
  3. Prior liver, pancreas or small-bowel transplant
  4. Staged abdominal repair (STAR), open abdomen technique or marsupialisation

Additional for HAP/VAP

  1. APACHE II score < 10
  2. Known or high likelihood of Gram-positive monomicrobial infection
  3. Lung abscess, pleural empyema, post-obstructive pneumonia
  4. Lung or heart transplant
  5. Myasthenia gravis
Read More
Exclusion Criteria

Not provided

Read More

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Aztreonam-Avibactam ± MetronidazoleATM-AVIAll patients randomised to this arm will receive ATM-AVI; all patients with cIAI will receive MTZ for anaerobic cover
Aztreonam-Avibactam ± MetronidazoleMTZAll patients randomised to this arm will receive ATM-AVI; all patients with cIAI will receive MTZ for anaerobic cover
Meropenem ± ColistinMERAll patients randomised to this arm will receive MER; addition of COL will be at investigator's discretion in line with local practice
Meropenem ± ColistinCOLAll patients randomised to this arm will receive MER; addition of COL will be at investigator's discretion in line with local practice
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With Clinical Cure at Test of Cure (TOC) Visit: Intent-To-Treat (ITT) Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee. 95% confidence interval (CI) was based on Jeffrey's method.

Percentage of Participants With Clinical Cure at TOC Visit: Clinically Evaluable (CE) Analysis SetAt TOC visit (Day 28)

Clinical cure = improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by Independent Clinical Adjudication Committee. 95% CI was based on Jeffrey's method. CE analysis set:all participants in ITT analysis set; met criteria for cIAI, or HAP/VAP; received at least 48 hours of study treatment or \<48 hours of treatment before discontinuing study drug due to AE; no concomitant antibiotics for any baseline pathogens between first dose and TOC (except protocol-allowed antibiotics); no prior antibiotics other than allowed per protocol; no important protocol deviations; no clinical outcome of indeterminate at TOC; no monomicrobial infections due to non-eligible pathogens and did not have only Gram-positive pathogens.

Secondary Outcome Measures
NameTimeMethod
Percentage of Participants With Clinical Cure at TOC Visit: Microbiological Intent-To-Treat (Micro-ITT) Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee. 95% CI was based on Jeffrey's method.

Percentage of Participants With Clinical Cure at TOC Visit: Microbiologically Evaluable (ME) Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee. 95% CI was based on Jeffrey's method.

Percentage of Participants With Clinical Cure at TOC Visit by Type of Infection: ITT Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee. 95% CI was based on Jeffrey's method.

Percentage of Participants Who Died on or Before 28 Days After Randomization: Micro-ITT Analysis SetFrom randomization up to 28 days

Percentage of participants who died on or before 28 days after randomization is reported in this outcome measure.

Percentage of Participants With Clinical Cure at TOC Visit by Type of Infection: CE Analysis SetAt TOC visit (Day 28)

Clinical cure = improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee. 95% CI was based on Jeffrey's method. CE analysis set:all participants in ITT analysis set; met criteria for cIAI, or HAP/VAP; received at least 48 hours of study treatment or \<48 hours of treatment before discontinuing study drug due to AE; no concomitant antibiotics for any baseline pathogens between first dose and TOC (except protocol-allowed antibiotics); no prior antibiotics other than allowed per protocol; no important protocol deviations; no clinical outcome of indeterminate at TOC; no monomicrobial infections due to non-eligible pathogens and did not have only Gram-positive pathogens.

Percentage of Participants With Clinical Cure in Participants With Metallo-beta-lactamase (MBL) Positive Pathogen at TOC Visit: Micro-ITT Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. Additionally, for cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee.

Percentage of Participants With Clinical Cure in Participants With MBL Positive Pathogen at TOC Visit: ME Analysis SetAt TOC visit (Day 28)

Clinical cure was defined as improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Clinical cure was determined by the Independent Clinical Adjudication Committee.

Percentage of Participants With Favorable Per-Participant Microbiological Response at TOC Visit: Micro- ITT Analysis SetAt TOC visit day (28)

Participants were determined to have a favorable microbiological response if all baseline pathogens for that participant had a favorable outcome (eradicated or presumed eradicated). Eradication: Absence of causative pathogen from an appropriately obtained specimen at the site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure.

Percentage of Participants With Favorable Per-Participant Microbiological Response at TOC Visit: ME Analysis SetAt TOC Visit (Day 28)

Participants were determined to have a favorable microbiological response if all baseline pathogens for that participant had a favorable outcome (eradicated or presumed eradicated). Eradication: Absence of causative pathogen from an appropriately obtained specimen at the site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure.

Percentage of Participants Who Died on or Before 28 Days After Randomization: ITT Analysis SetFrom randomization up to 28 days

Percentage of participants who died on or before 28 days after randomization is reported in this outcome measure.

Plasma Concentration of AztreonamAnytime between 25 to 30 minutes, 3.25 to 3.5 hours, 5.5 to 6.5 hours, 7.5 to 8.5 hours post start of infusion on Day 1; 2.75 to 3 hours, 3.5 to 4.5 hours, 5 to 6 and 7 to 8 hours post start of infusion on Day 4

Plasma concentration for aztreonam according to renal function (augmented, normal and mild, moderate and severe is presented in this outcome measure. Augmented = Creatinine clearance (CrCL) \> 150 milliliters per minute (mL/min); Normal \& Mild = CrCL \> 50 to \<=150 mL/min; Moderate = CrCL \> 30 to ≤ 50 mL/min; Severe = CrCL \> 15 to ≤ 30 mL/min.

Plasma Concentration of AvibactamAnytime between 25 to 30 minutes, 3.25 to 3.5 hours, 5.5 to 6.5 hours, 7.5 to 8.5 hours post start of infusion on Day 1; 2.75 to 3 hours, 3.5 to 4.5 hours, 5 to 6 and 7 to 8 hours post start of infusion on Day 4

Plasma concentration for avibactam according to renal function (augmented, normal and mild, moderate and severe is presented in this outcome measure. Augmented = CrCL \> 150 mL/min; Normal \& Mild = CrCL \> 50 to \<=150 mL/min; Moderate = CrCL \> 30 to ≤ 50 mL/min; Severe = CrCL \> 15 to ≤ 30 mL/min.

Maximum Plasma Concentration for a Dosing Interval at Steady-State (Cmax, ss) According to Clinical Response by Infection Type at TOC: AztreonamAt TOC (Day 28)

Population PK predicted maximum plasma concentration for a dosing interval at steady-state (Cmax,ss) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Percentage of Time That Free Plasma Concentrations Are Above the Minimum Inhibitory Concentration Over a Dosing Interval (%fT>MIC Aztreonam (ATM) of 8 mg/L) According to Clinical Response by Infection Type at TOC: AztreonamAt TOC (Day 28)

Population PK predicted (%fT\>MIC ATM of 8 mg/L) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Area Under the Plasma Concentration-time Curve Over 24 Hours at Steady-state (AUC24,ss ) According to Clinical Response by Infection Type at TOC: Aztreonam0 to 24 hours at TOC (Day 28)

Population PK predicted (AUC24,ss) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Maximum Plasma Concentration for a Dosing Interval at Steady-state (Cmax,ss) According to Microbiological Response by Infection Type at TOC: AztreonamAt TOC (Day 28)

Population PK predicted (Cmax,ss) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving \< 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Area Under the Plasma Concentration-time Curve Over 24 Hours at Steady-state (AUC24,ss) According to Microbiological Response by Infection Type at TOC: Aztreonam0 to 24 hours at TOC (Day 28)

Population PK predicted (AUC24,ss) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving \< 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Percentage of Time That Free Plasma Concentrations Are Above the Minimum Inhibitory Concentration Over a Dosing Interval (%fT>MIC Aztreonam (ATM) of 8 mg/L) According to Microbiological Response by Infection Type at TOC: AztreonamAt TOC (Day 28)

Population PK predicted (%fT\>MIC ATM of 8 mg/L) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving \< 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Percent of Time That Free Plasma Concentrations Are Above the Threshold Concentration Over a Dosing Interval (%fT>CT of 2.5mg/L) According to Clinical Response by Infection Type at TOC: AvibactamAt TOC (Day 28)

Population PK predicted (%fT\>CT of 2.5mg/L) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Area Under the Plasma Concentration-time Curve Over 24 Hours at Steady-state (AUC24,ss) According to Clinical Response by Infection Type at TOC: Avibactam0 to 24 hours at TOC (Day 28)

Population PK predicted (AUC24,ss) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Maximum Plasma Concentration for a Dosing Interval at Steady-state (Cmax,ss ) According to Clinical Response by Infection Type at TOC: AvibactamAt TOC (Day 28)

Population PK predicted (Cmax,ss) for participants who received aztreonam-avibactam in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Clinical response categories included, clinical cure=improvement in baseline signs and symptoms such that after study treatment, no further antimicrobial treatment for the index infection (i.e., cIAI or HAP/VAP) was required. For cIAI participants, no unplanned drainage or surgical intervention was necessary since the initial procedure. Failure was defined as participants who met any of the following criteria like death (after receiving at least 48 hours of study treatment) and participants who received treatment with further antibiotics for the index infection. Indeterminate was defined as death (after receiving less than 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Area Under the Plasma Concentration-time Curve Over 24 Hours at Steady-state (AUC24,ss) According to Microbiological Response by Infection Type at TOC: Avibactam0 to 24 hours At TOC (Day 28)

Population PK predicted (AUC24,ss) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving\<48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Maximum Plasma Concentration for a Dosing Interval at Steady-state (Cmax,ss (mg/L)) According to Microbiological Response by Infection Type at TOC: AvibactamAt TOC (Day 28)

Population PK predicted (Cmax,ss (mg/L)) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving\<48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Percent of Time That Free Plasma Concentrations Are Above the Threshold Concentration Over a Dosing Interval; (%fT>CT of 2.5 mg/L) According to Microbiological Response by Infection Type at TOC: AvibactamAt TOC (Day 28)

Population PK predicted (%fT\>CT of 2.5 mg/L) for participants who received ATM-AVI in studies C3601002 (NCT03329092) and C3601009 (NCT03580044). Microbiological response included Favorable =baseline pathogens for participant had a favorable outcome. Eradication: Absence of causative pathogen from an appropriately obtained specimen at site of infection. Presumed eradication: repeat culture of specimens were not performed/clinically indicated in a participant who had a clinical response of cure. Unfavorable=persistence, persistence with increasing MIC, or presumed persistence. Persistence= Causative organism still present from appropriately obtained specimen at site of infection. Presumed persistence= Participant assessed as a clinical failure and repeat culture of specimens were not performed/clinically indicated. Indeterminate = death (after receiving \< 48 hours of study treatment) and for cIAI participants inadequate infection source control at time of initial surgical procedure.

Number of Participants With Adverse Events (AEs) and Serious AEsFrom start of study treatment until end of late follow-up (Up to Day 45)

An adverse event (AE) was any untoward medical occurrence in a study participant administered medicinal product,; the event need not necessarily have a causal relationship with product treatment or usage. A serious adverse event (SAE) was any untoward medical occurrence at any dose that: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of hospitalization; resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); resulted in congenital abnormal/birth defect or considered an important medical event.

Number of Participants With Potentially Clinically Significant Hematology AbnormalitiesFrom start of study treatment until TOC visit (Up to Day 28)

Criteria for potential clinically significant hematology results were as follows: hemoglobin, hematocrit and erythrocyte \<0.7\*lower limit of normal \[LLN\] and \>30% decrease from Baseline (DFB); \>1.3\*upper limit of normal (ULN) and \>30% increase from Baseline (IFB). Platelet count \<0.65\*LLN and \> 50% decrease from baseline; \> 1.5 \* ULN and \> 100% increase from baseline. leukocyte: \< 0.65\* LLN and \> 60% decrease from baseline; \> 1.5\* ULN and 100% increase from baseline. Neutrophils/leukocytes \< 0.65 \* LLN and \>75% decrease from baseline; \> 1.6\*ULN and \> 100% increase from baseline. Lymphocytes/leukocytes \< 0.25\* LLN and \> 75% decrease from baseline;\> 1.5\* ULN and \> 100% increase from baseline, Eosinophils/leukocytes, Monocytes/leukocytes, Basophils/leukocytes \> 4.0\* ULN and \> 300% increase from baseline.

Number of Participants With Abnormalities in Vital SignsFrom start of study treatment until TOC visit (Up to Day 28)

Vitals signs, included blood pressure and, heart rate. Blood pressure (BP) and heart rate were measured using a semiautomatic BP recording device with the participant in a supine position after at least 10 minutes of rest. Criteria for abnormalities included: Systolic BP (millimeters of mercury \[mmHg\]): value more than (\>) 150 and increase from baseline more than equal (\>= 30) or value less than (\<) 90 and decrease from baseline \>= 30; DBP: value \> 100 and increase from baseline \>=20 or Value \< 50 and decrease from baseline \>= 20; Heart Rate (beats per minute \[BPM\]): value \< 40 or \> 120.

Number of Participants With Abnormal Physical Examination FindingScreening, End of treatment (up to 24 hours post infusion on Day 14) and Test of Cure (Day 28)

A complete physical examination was performed and included an assessment of the following: general appearance including site of infection, skin, head and throat (head, eyes, ears, nose, and throat), lymph nodes, lungs, cardiovascular (CV), abdomen, musculoskeletal, and neurological systems.

Number of Participants With Potentially Clinically Significant Clinical Chemistry AbnormalitiesFrom start of study treatment until At TOC visit (Up to Day 28)

Albumin \< 0.5\* LLN and\> 50% decrease from baseline (DFB);\> 1.5 \* ULN and\> 50% increase from baseline (IFB). Alkaline phosphatase \< 0.5 \* LLN and\> 80% DFB;\> 3.0 \* ULN and\> 100%. Alanine and Aspartate aminotransferase \> 3.0 \* ULN and\> 100% IFB. Bicarbonate \< 0.7 \* LLN and \> 40% DFB;\> 1.3 \* ULN and\> 40% IFB. Blood urea nitrogen \< 0.2 \* LLN and \> 100% DFB; \> 3.0 \* ULN and \> 200% IFB. Calcium \< 0.7 \* LLN and \> 30% DFB;\> 1.3 \* ULN and\> 30% IFB. Chloride \< 0.8 \* LLN \>and 20% DFB; \> 1.2 \* ULN and \> 20% IFB. Creatinine \> 2.0 \* ULN and\> 100% IFB; Glucose \< 0.6 \* LLN and\> 40% DFB; \> 3.0 \* ULN and\> 200% IFB. Potassium \< 0.8 \* LLN and \> 20% DFB; \> 1.2 \* ULN and\> 20% IFB. Sodium \< 0.85 \* LLN and\> 10% DFB;\> 1.1 \* ULN and \>10% IFB. Bilirubin \> 1.5 \* ULN and \> 100% IFB.; Direct bilirubin \> 2.0 \* ULN and \> 150% IFB.

Number of Participants With Abnormal Clinically Significant Electrocardiogram (ECG) FindingsBaseline (latest non-missing value before start of treatment) and Day 3

Standard 12-lead ECGs were recorded with the participants in the supine position after the participant had rested in this position for 10 minutes. Clinically significant findings were based on investigators assessment.

Trial Locations

Locations (156)

General Hospital of Athens "Laiko"

🇬🇷

Athens, Greece

Koutlimbaneio and Triantafylleio General Hospital of Larissa

🇬🇷

Larissa, Greece

Clinical Hospital Dubrava

🇭🇷

Zagreb, Croatia

Banner University Medical Center - Tucson

🇺🇸

Tucson, Arizona, United States

Hospital San Roque

🇦🇷

Córdoba, Argentina

University Hospital Alexandrovska, Clinic of Anesthesiology and Intensive Care

🇧🇬

Sofia, Bulgaria

University Hospital Queen Joanna ISUL, Clinic of Surgery

🇧🇬

Sofia, Bulgaria

Lekarna Nemocnice Decin, Krajska zdravotni, a.s.- Nemocnice Decin, o.z.

🇨🇿

Decin, Czechia

Klinicka bolnica Merkur

🇭🇷

Zagreb, GRAD Zagreb, Croatia

Sanatorio Britanico

🇦🇷

Rosario, Santa FE, Argentina

Fakultni nemocnice Brno

🇨🇿

Brno, Czechia

University Malaya Medical Centre

🇲🇾

Kuala Lumpur, Malaysia

De La Salle Medical and Health Sciences Institute

🇵🇭

City Of Dasmarinas, Cavite, Philippines

Baguio General Hospital and Medical Center

🇵🇭

Baguio City, Philippines

Davao Doctors Hospital

🇵🇭

Davao City, Philippines

Krajska zdravotni, a.s. - Nemocnice Decin, o.z.

🇨🇿

Decin, Czechia

Public Hospital Kolin, a.s.

🇨🇿

Kolin III, Czechia

University Multiprofile Hospital for Active Treatment ''Prof.Dr Stoyan Kirkovich''AD

🇧🇬

Stara Zagora, Bulgaria

University General Hospital of Larissa

🇬🇷

Larissa, Greece

Hospital Seberang Jaya

🇲🇾

Seberang Jaya, Pulau Pinang, Malaysia

St. Paul's Hospital of Iloilo, Inc.

🇵🇭

Iloilo City, Philippines

SC di Radiologia - Azienda Ospedaliera Universitaria di Modena

🇮🇹

Modena, Italy

Memorial Medical Center

🇺🇸

Springfield, Illinois, United States

T.C. Saglik Bakanligi Ankara Sehir Hastanesi

🇹🇷

Ankara, Turkey

Farmacia Ospedaliera - Direzione Assistenza Farmaceutica

🇮🇹

Modena, Italy

Azienda Ospedaliero-Universitaria Pisana Ospedale Cisanello

🇮🇹

Pisa, Italy

Hospital Universitario "Dr. Jose Eleuterio Gonzalez"

🇲🇽

Monterrey, Nuevo LEON, Mexico

West Visayas State University Medical Center

🇵🇭

Iloilo City, Philippines

Spitalul Clinic Judetean de Urgenta "Pius Brinzeu"

🇷🇴

Timisoara, Romania

UO Radiognastostica 2 Azienda Ospedaliero-Universitaria Pisana Ospedale Cisanello

🇮🇹

Pisa, Italy

Hallym University Kangnam Sacred Heart Hospital

🇰🇷

Seoul, Korea, Republic of

Gachon University Gil Medical Center - Infectious Disease

🇰🇷

Incheon, Incheon Gwang'yeogsiv, Korea, Republic of

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

The Catholic University of Korea, Eunpyeong St. Mary's Hospital

🇰🇷

Seoul, Korea, Republic of

State autonomous institution of healthcare of the Perm Region" City clinical hospital #4"

🇷🇺

Perm, Russian Federation

Azienda Sanitaria Universitaria Friuli Centrale (ASU FC), Presidio Ospedaliero Universitario Santa

🇮🇹

Udine, Italy

Acibadem Atakent Hospital

🇹🇷

Istanbul, Turkey

Faculty of Medicine Siriraj Hospital

🇹🇭

Bangkoknoi, Bangkok, Thailand

Philippine General Hospital, Central Intensive Care Unit

🇵🇭

Manila, Philippines

Spitalul Clinic de Boli Infectioase si tropicale "Dr. Victor Babes"

🇷🇴

Bucuresti, Romania

Private Healthcare Institution "Clinical Hospital 'Russian Railroad Medicine, Chelyabinsk'"

🇷🇺

Chelyabinsk, Russian Federation

Hospital Civil Fray Antonio Alcalde

🇲🇽

Guadalajara, Jalisco, Mexico

Hospital Universitario Virgen del Rocio

🇪🇸

Sevilla, Spain

Makati Medical Center

🇵🇭

Makati City, Philippines

Asian Hospital and Medical Center

🇵🇭

Muntinlupa City, Philippines

St. Luke's Medical Center

🇵🇭

Quezon City, Philippines

Songklanagarind Hospital, Prince of Songkla University

🇹🇭

Hat Yai, Songkhla, Thailand

Hospital Sultanah Nur Zahirah

🇲🇾

Kuala Terengganu, Terengganu, Malaysia

Kocaeli University Medical Faculty

🇹🇷

Kocaeli, Turkey

Spitalul Clinic de Boli Infectioase Cluj-Napoca

🇷🇴

Cluj-Napoca, Romania

Assuta Ashdod University Hospital

🇮🇱

Ashdod, Israel

Hospital Universitari Germans Trias i Pujol

🇪🇸

Badalona, Barcelona, Spain

Institutul National de Boli Infectioase "Prof. Dr. Matei Bals"

🇷🇴

Bucuresti, Romania

Hospital Universitario Reina Sofia

🇪🇸

Cordoba, Spain

Hospital Universitari i Politecnic la Fe

🇪🇸

Valencia, Spain

Ivano-Frankivska tsentralna miska klin likarnia, viddilennia khirurhii,

🇺🇦

Ivano-Frankivsk, Ukraine

GBUZ of Novosibirsk region "City Clinical Hospital # 2"

🇷🇺

Novosibirsk, Russian Federation

Kyivska miska klinichna likarnia No. 3, khirurhichne viddilennia

🇺🇦

Kyiv, Ukraine

Hacettepe Universitesi Tip Fakultesi

🇹🇷

Ankara, Turkey

Ankara University Faculty of Medicine

🇹🇷

Ankara, Turkey

Marmara Universitesi Pendik Egitim ve Arastirma Hastanesi

🇹🇷

Istanbul, Turkey

Karadeniz Technical University Medical Faculty Farabi Hospital

🇹🇷

Trabzon, Turkey

Kaohsiung Veterans General Hospital

🇨🇳

Kaohsiung, Taiwan

Bamrasnaradura Infectious Disease Institute (BIDI)

🇹🇭

Muang, Nonthaburi, Thailand

Hospital Universitario Ramon y Cajal

🇪🇸

Madrid, Spain

Odeska klinichna likarnia na zaliznychnomu transporti filii "Tsentr okhorony zdorovia" aktsionernoho

🇺🇦

Odesa, Ukraine

Komunalne pidpryiemstvo "1-a miska klinichna likarnia Poltavskoi miskoi rady",

🇺🇦

Poltava, Ukraine

Oblasna klinichna likarnia, viddilennia anesteziolohii ta intensyvnoi terapii

🇺🇦

Ivano-Frankivsk, Ukraine

Hospital de la Santa Creu i Sant Pau

🇪🇸

Barcelona, Spain

Hospital Regional Universitario de Malaga

🇪🇸

Malaga, Spain

Komunalnyi zaklad "Miska klinichna likarnia No.4" Dniprovskoi miskoi rady, viddilennia profpatolohii

🇺🇦

Dnipro, Ukraine

DU "Instytut zahalnoi ta nevidkladnoi khirurhii imeni V.T. Zaitseva Natsionalnoi akademii medychnykh

🇺🇦

Kharkiv, Ukraine

Hospital Universitario Mutua de Terrassa

🇪🇸

Terrassa, Barcelona, Spain

Hospital Universitario Miguel Servet

🇪🇸

Zaragoza, Spain

Scientific Research Institute of Antimicrobial Chemotherapy

🇷🇺

Smolensk, Russian Federation

Komunalne nekomertsiine pidpryiemstvo Lvivskoi oblasnoi rady Lvivska oblasna klinichna likarnia

🇺🇦

Lviv, Ukraine

Kyivska miska klinichna likarnia #4, khirurhichne viddilennia #1

🇺🇦

Kyiv, Ukraine

S.R. Kalla Memorial Gastro & General Hospital

🇮🇳

Jaipur, Rajasthan, India

Apollo Hospitals

🇮🇳

Chennai, Tamil NADU, India

Srinagarind Hospital, Division of Infectious Disease and Tropical Medicine

🇹🇭

Muang, Khon Kaen, Thailand

Sahyadri Super Speciality Hospital

🇮🇳

Pune, Maharashtra, India

JSS Hospital

🇮🇳

Mysuru, Karnataka, India

M S Ramaiah Medical College and Hospitals

🇮🇳

Bangalore, Karnataka, India

Sanatorio Servicios Medicos SM

🇦🇷

Santo Tome, Santa FE, Argentina

Sahyadri Clinical Research & Development Center

🇮🇳

Pune, India

King George Hospital

🇮🇳

Visakhapatnam, Andhra Pradesh, India

Quirino Memorial Medical Center

🇵🇭

Quezon City, Philippines

Sahyadri Specialty Hospital

🇮🇳

Pune, India

Kaohsiung Medical University Chung-Ho Memorial Hospital

🇨🇳

Kaohsiung City, Taiwan

Spitalul Clinic de Boli Infectioase "Sf. Parascheva" Iasi

🇷🇴

Iasi, Romania

Taichung Veterans General Hospital

🇨🇳

Taichung City, Taiwan

Zhangzhou Municipal Hospital of Fujian Province

🇨🇳

Zhangzhou, Fujian, China

The First Affiliated Hospital of Shantou University Medical College

🇨🇳

Shantou, Guangdong, China

The Second People's Hospital of Shenzhen

🇨🇳

Shenzhen, Guangdong, China

Affiliated Hospital of Guilin Medical University

🇨🇳

Guilin, Guangxi, China

ZhuJiang Hospital of Southern Medical University

🇨🇳

Guangzhou, Guangdong, China

Peking University Third Hospital

🇨🇳

Beijing, Beijing, China

Changsha Third Hospital

🇨🇳

Changsha, Hunan, China

Jiangyin People's Hospital

🇨🇳

Jiangyin, China

Affiliated Hospital of Jiangsu University

🇨🇳

Zhenjiang, Jiangsu, China

The First people's Hospital of Kunming

🇨🇳

Kunming, Yunnan, China

Taizhou Hospital of Zhejiang Province

🇨🇳

Linhai, Zhejiang, China

Huashan Hospital, Fudan University

🇨🇳

Shanghai, Shanghai, China

Shanghai Pulmonary Hospital

🇨🇳

Shanghai, Shanghai, China

The First Affiliated Hospital of College of Medicine, Zhejiang University

🇨🇳

Hangzhou, Zhejiang, China

Lishui People's Hospital

🇨🇳

Lishui, Zhejiang, China

Quzhou People's Hospital

🇨🇳

Quzhou, Zhejiang, China

Peking University People's Hospital

🇨🇳

Beijing, China

Tianjin Union Medical Center

🇨🇳

Tianjin, China

UO Farmaceutica Azienda Ospedaliero-Universitaria Pisana

🇮🇹

Pisa, Italy

FGBOU VO "The First St. Petersburg state medical university n. a. I.P. Pavlova"

🇷🇺

Saint-Petersburg, Russian Federation

The Chaim Sheba Medical Center

🇮🇱

Tel-Hashomer, Israel

Southern Illinois University School of Medicine

🇺🇸

Springfield, Illinois, United States

Harbor-UCLA Medical Center

🇺🇸

Torrance, California, United States

Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center

🇺🇸

Torrance, California, United States

Nanning First People's Hospital

🇨🇳

Nanning, Guangxi Zhuang Autonomous Region, China

Hunan Province People's Hospital

🇨🇳

Changsha, Hunan, China

Baotou Central Hospital

🇨🇳

Baotou, Inner Mongolia Autonomous Region, China

General Hospital "Dr. Josip Bencevic" Slavonski Brod

🇭🇷

Slavonski Brod, Croatia

Klinicki bolnicki centar Rijeka

🇭🇷

Rijeka, Primorsko-goranska Zupanija, Croatia

Nemocnice Kyjov, prispevkova organizace

🇨🇿

Kyjov, Czechia

Fakultni nemocnice Kralovske Vinohrady

🇨🇿

Praha 10, Czechia

General Hospital of Athens "Evangelismos"

🇬🇷

Athens, Greece

General and Chest Diseases Hospital "Sotiria"

🇬🇷

Athens, Greece

University General Hospital "ATTIKON"

🇬🇷

Athens, Greece

University General Hospital of Heraklion

🇬🇷

Heraklion, Crete, Greece

Kasturba Medical College and Hospital

🇮🇳

Manipal, Karnataka, India

Victoria Hospital, Bangalore Medical College and Research Institute

🇮🇳

Bangalore, Karnataka, India

Amrita Institute of Medical Sciences & Research Centre

🇮🇳

Kochi, Kerala, India

Deenanath Mangeshkar Hospital And Research Centre

🇮🇳

Pune, Maharashtra, India

King George's Medical University

🇮🇳

Lucknow, Uttar Pradesh, India

Dayanand Medical College and Hospital

🇮🇳

Ludhiana, India

Rambam Health Care Campus

🇮🇱

Haifa, Israel

Hadassah Medical Organization, Hadassah Medical Center, Ein-Karem

🇮🇱

Jerusalem, Israel

Rabin Medical Center, Beilinson Hospital

🇮🇱

Petah Tikva, Israel

Shamir Medical Center, Infectious Diseases Unit

🇮🇱

Zerifin, Israel

Tel Aviv Sourasky Medical Center

🇮🇱

Tel Aviv, Israel

Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico

🇮🇹

Milano, Milan, Italy

Azienda Ospedaliero-Universitaria Ospedali Riuniti

🇮🇹

Foggia, Italy

Azienda Ospedaliero Universitaria di Modena

🇮🇹

Modena, Italy

OGBUZ "Smolensk Regional Clinical Hospital"

🇷🇺

Smolensk, Russian Federation

State Budgetary Healthcare Institution "Regional Clinical Hospital No. 2" of the Ministry of Health

🇷🇺

Krasnodar, Russian Federation

FSBEI of HE "Smolensk State Medical University" of the Ministry of Health of the RF

🇷🇺

Smolensk, Russian Federation

Parc de Salut Mar- Hospital del Mar

🇪🇸

Barcelona, Spain

Hospital Universitario Virgen Macarena

🇪🇸

Sevilla, Spain

Taipei Municipal Wanfang Hospital

🇨🇳

Taipei, Taiwan

National Taiwan University Hospital

🇨🇳

Taipei City, Taiwan

National Taiwan University Hospital Yun-Lin Branch

🇨🇳

Douliou, Yunlin, Taiwan

Ege University Faculty of Medicine

🇹🇷

Izmir, Turkey

OKU "Chernivetska oblasna klinichna likarnia", khirurhichne viddilennia

🇺🇦

Chernivtsi, Ukraine

Sahyadri Super Specialty Hospital

🇮🇳

Pune, Maharashtra, India

University Hospital Centre Osijek

🇭🇷

Osijek, Croatia

KZ "Dnipropetrovska oblasna klinichna likarnia im. I.I. Mechnykova", viddilennia khirurhii №2

🇺🇦

Dnipro, Ukraine

Vinnytska oblasna klinichna likarnia im. M.I. Pyrohova

🇺🇦

Vinnytsia, Ukraine

Government Medical College, Kozhikode

🇮🇳

Kozhikode, Kerala, India

Complejo Hospitalario Universitario de Vigo. Area Sanitaria de Vigo. Hospital Alvaro Cunqueiro

🇪🇸

Vigo, Pontevedra, Spain

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