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Compare Ceftazidime-Avibactam + Metronidazole vs Meropenem for Hospitalized Adults With Complicated Intra-Abd Infections

A Phase III, Randomized, Multicenter, Double Blind, Double-Dummy, Parallel-Group, Comparative Study to Determine the Efficacy, Safety, and Tolerability of Ceftazidime Avibactam Plus Metronidazole Versus Meropenem in the Treatment of Complicated Intra-Abdominal Infections In Hospitalized Adults

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01726023
Acronym
RECLAIM3
Enrollment
486
Registered
2012-11-14
Start date
2013-01-31
Completion date
2015-03-31
Last updated
2017-09-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Complicated Intra-abdominal Infection

Keywords

Ceftazidime-avibactam,, Metronidazole,, Meropenem,, Anti-Bacterial Agents,, Anti-Infective Agents,, Therapeutic Uses,, Pharmacologic Actions,, Physiological Effects of Drugs

Brief summary

The purpose of this study is to evaluate the effects of Ceftazidime Avibactam plus Metronidazole compared to Meropenem for treating hospitalized patients with complicated intra-abdominal infections.

Detailed description

A Phase III, Randomized, Multicenter, Double Blind, Double-Dummy, Parallel-Group, Comparative Study to Determine the Efficacy, Safety, and Tolerability of Ceftazidime Avibactam Plus Metronidazole Versus Meropenem in the Treatment of Complicated Intra-Abdominal Infections In Hospitalized Adults

Interventions

Ceftazidime-Avibactam powder for concentrate for solution for infusion 2000 mg/500 mg

DRUGmetronidazole

Metronidazole 500mg/100ml solution for infusion

DRUGMeropenem

Meropenem powder for solution for infusion 1000mg

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Patient must be 18 to 90 years of age, inclusive, * Female patients can participate if they are surgically sterilized or postmenopausal for at least 1 year or her sexual partner has had a vasectomy * Female of childbearing potential has had normal menstrual periods for 3 months and negative serum pregnancy test and agree to practice highly effective methods of birth control during treatment and for at least 7 days after last dose * Intraoperative/postoperative enrollment with visual confirmation (presence of pus within the abdominal cavity) of an intra-abdominal infection associated with peritonitis * Confirmation of infection by surgical intervention within 24 hours of entry: evidence of systemic inflammatory indicators; physical findings consistent with intra-abdominal infection; supportive radiologic imaging findings of intra-abdominal infections

Exclusion criteria

* Patient is diagnosed with traumatic bowel perforation undergoing surgery within 12 hours; perforation of gastroduodenal ulcers undergoing surgery within 24 hours. Other intra-abdominal processes in which primary etiology is not likely to be infectious * Patient has abdominal wall abscess or bowel obstruction without perforation or ischemic bowel without perforation * Patients whose surgery will include staged abdominal repair, or open abdomen technique, or marsupialization * Patient has suspected intra-abdominal infections due to fungus, parasites, virus or tuberculosis * Patient is considered unlikely to survive the 6- to 8-week study period or has a rapidly progressive or terminal illness, including septic shock that is associated with a high risk of mortality

Design outcomes

Primary

MeasureTime frameDescription
The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.At the test of cure visit (Day 28 to35)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Secondary

MeasureTime frameDescription
The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.At late follow up (LFU) visits (Day 42 to 49)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the test of cure (TOC) (Day 28 to 35)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the late follow up (LFU) (Day 42 to 49)Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.
The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.At the late follow up (LFU) (Day 42 to 49)The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.
The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).
The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).
Plasma Concentrations for Ceftazidime and AvibactamAt Day 3: Anytime within 15 minutes prior to or after stopping study drug, anytime between 30 and 90 minutes after stopping study drug, anytime between 300 minutes and 360 minutes after stopping study drug.Blood samples were taken from all patients on Day 3 for the pharmacokinetic evaluation of ceftazidime and avibactam plasma concentrations
The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.At the test of cure (TOC) (Day 28 to 35)The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).
The Time to First Defervescence in the Clinically Evaluable (CE) Analysis Set for Patients Who Have Fever at Study Entry.while on study therapy (from Day 1 to Day 14)Time to first defervescence was calculated for patients with a fever (\>38ºC) at baseline. Defervescence (≤37.8ºC) was defined as the absence of fever based on the highest temperature recorded on each study day. Time to first defervescence while on IV study therapy in the CE analysis set at TOC for patients who had fever at study entry is defined as time (in days) from the first dose of IV study therapy to first absence of fever.
The Time to First Defervescence in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set for Patients Who Have Fever at Study Entry.while on study therapy (from Day 1 to Day 14)Time to first defervescence was calculated for patients with a fever (\>38ºC) at baseline. Defervescence (≤37.8ºC) was defined as the absence of fever based on the highest temperature recorded on each study day. Time to first defervescence while on IV study therapy in the CE analysis set at TOC for patients who had fever at study entry is defined as time (in days) from the first dose of IV study therapy to first absence of fever.
The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.At the end of treatment (EOT) (within 24 hours after last IV dose)The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.
Safety and Tolerability by Incidence: Extent of Exposure.study duration (from screening to Day 49 LFU visit)Duration of exposure is calculated as the difference between the last study therapy date and the first study therapy date converted to days plus 1 day. Actual calculated duration could be shorter or longer than a full day.
Safety and Tolerability: Clinical Laboratory Evaluation Hematology.study duration (from screening to Day 49 LFU visit)Potentially clinically significant (PCS) post Baseline hematology values up to LFU (Safety analysis set)
Safety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.study duration (from screening to Day 49 LFU visit)Potentially clinically significant (PCS) post Baseline clinical chemistry values up to LFU (Safety analysis set)
Safety and Tolerability:ECG , QTcB and QTcF IntervalsEOT visit/any observation on treatmentShifts in ECG interpretation and changes in QT, QTcB, and QTcF intervals , from baseline to post baseline.
Safety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.study duration (from screening to Day 49 LFU visit)Adverse event data were collected from the screening/consent visit until the late follow-up visit (i.e. Day -1/0 to Day 42).

Countries

China, South Korea, Vietnam

Participant flow

Recruitment details

Overall, 486 patients were enrolled from 43 centers in 3 countries in this study. The first patient was enrolled on 14 January 2013 and the last patient last visit was on 14 March 2015.

Pre-assignment details

Of 486 enrolled patients, 42 did not meet the eligibility criteria. A further two patients were not randomized due to withdrawn consent, and one patient was not randomized due to unavailability of study drug.

Participants by arm

ArmCount
Ceftazidime-Avibactam Plus Metronidazole
Ceftazidime-Avibactam powder for concentrate for solution for infusion 2000 mg/500 mg Plus Metronidazole 500mg/100ml solution for infusion
214
Meropenem
Meropenem powder for solution for infusion 1000mg
217
Total431

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath11
Overall StudyLost to Follow-up510
Overall StudyOther Eligibility criteria77
Overall StudyWithdrawal by Subject168

Baseline characteristics

CharacteristicCeftazidime-Avibactam Plus MetronidazoleMeropenemTotal
Age, Continuous48.5 Years
STANDARD_DEVIATION 16.83
48.5 Years
STANDARD_DEVIATION 17.43
48.5 Years
STANDARD_DEVIATION 17.11
Age, Customized
18-45 Years
89 Participants96 Participants185 Participants
Age, Customized
46-64 Years
85 Participants72 Participants157 Participants
Age, Customized
65-74 Years
28 Participants30 Participants58 Participants
Age, Customized
75-90 Years
12 Participants19 Participants31 Participants
Race/Ethnicity, Customized
Asian
214 Participants217 Participants431 Participants
Sex: Female, Male
Female
73 Participants64 Participants137 Participants
Sex: Female, Male
Male
141 Participants153 Participants294 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
44 / 21547 / 217
serious
Total, serious adverse events
9 / 21511 / 217

Outcome results

Primary

The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the test of cure visit (Day 28 to35)

Population: The clinically evaluable (CE) analysis set included all patients who met the disease definition of cIAI and met the stringent criteria for clinical evaluation described in the protocol regarding dosing, concomitant medication, evaluation, etc.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure166 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure11 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure173 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure11 Number of patients
Comparison: The Primary objective of this study was to assess the non inferiority (based on a 12.5% margin) of CAZ AVI plus metronidazole compared to meropenem alone with respect to clinical cure at the TOC visit in patients who were CE.p-value: <0.00195% CI: [-5.53, 4.97]% Risk Difference (RD)
Secondary

Plasma Concentrations for Ceftazidime and Avibactam

Blood samples were taken from all patients on Day 3 for the pharmacokinetic evaluation of ceftazidime and avibactam plasma concentrations

Time frame: At Day 3: Anytime within 15 minutes prior to or after stopping study drug, anytime between 30 and 90 minutes after stopping study drug, anytime between 300 minutes and 360 minutes after stopping study drug.

Population: PK analysis set

ArmMeasureValue (GEOMETRIC_MEAN)
Ceftazidime-Avibactam Plus MetronidazolePlasma Concentrations for Ceftazidime and Avibactam60300.4 ng/mL
MeropenemPlasma Concentrations for Ceftazidime and Avibactam10126.9 ng/mL
Ceftazidime(2)Plasma Concentrations for Ceftazidime and Avibactam46473.9 ng/mL
Avibactam(2)Plasma Concentrations for Ceftazidime and Avibactam7289.3 ng/mL
Ceftazidime(3)Plasma Concentrations for Ceftazidime and Avibactam9555.0 ng/mL
Avibactam(3)Plasma Concentrations for Ceftazidime and Avibactam1207.2 ng/mL
Secondary

Safety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.

Adverse event data were collected from the screening/consent visit until the late follow-up visit (i.e. Day -1/0 to Day 42).

Time frame: study duration (from screening to Day 49 LFU visit)

Population: Safety analysis set: all patients who received at least 1 dose of IP

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE leading to discontinuation of IP7 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE with outcome=death0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE of severe intensity5 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any SAE9 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Total number of deaths2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Deaths due to disease progression2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE82 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Deaths due to disease progression0 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE with outcome=death1 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE83 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any SAE11 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE leading to discontinuation of IP3 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Any AE of severe intensity5 Number of patients
MeropenemSafety and Tolerability by Incidence and Severity of Adverse Events and Serious Adverse Events and Mortality.Total number of deaths1 Number of patients
Secondary

Safety and Tolerability by Incidence: Extent of Exposure.

Duration of exposure is calculated as the difference between the last study therapy date and the first study therapy date converted to days plus 1 day. Actual calculated duration could be shorter or longer than a full day.

Time frame: study duration (from screening to Day 49 LFU visit)

Population: Safety analysis set: all patients who received at least 1 dose of IP

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence: Extent of Exposure.1 - 2 days10 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence: Extent of Exposure.3 - 4 days6 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence: Extent of Exposure.5 -10 days175 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence: Extent of Exposure.11 - 14 days24 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability by Incidence: Extent of Exposure.>14 days0 Number of patients
MeropenemSafety and Tolerability by Incidence: Extent of Exposure.>14 days0 Number of patients
MeropenemSafety and Tolerability by Incidence: Extent of Exposure.11 - 14 days26 Number of patients
MeropenemSafety and Tolerability by Incidence: Extent of Exposure.3 - 4 days5 Number of patients
MeropenemSafety and Tolerability by Incidence: Extent of Exposure.1 - 2 days5 Number of patients
MeropenemSafety and Tolerability by Incidence: Extent of Exposure.5 -10 days181 Number of patients
Secondary

Safety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.

Potentially clinically significant (PCS) post Baseline clinical chemistry values up to LFU (Safety analysis set)

Time frame: study duration (from screening to Day 49 LFU visit)

Population: Safety analysis set: all patients who received at least 1 dose of IP

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Creatinine (μmol/L): PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Bicarbonate (mmol/L) PCS (Low)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Potassium (mmol/L): PCS (High)3 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Bicarbonate (mmol/L): PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alanine aminotransferase (μkat/L): PCS (High)3 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Glucose (non-fasting) (mmol/L): PCS (High)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Gamma-glutamyl transferase (μkat/L):PCS (High)2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alkaline phosphatase (μkat/L): PCS (Low)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Inorganic phosphorus (mmol/L): PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Inorganic phosphorus (mmol/L): PCS (Low)3 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Potassium (mmol/L): PCS (Low)9 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alkaline phosphatase (μkat/L): PCS (High)2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Total bilirubin (μmol/L): PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Glucose (non-fasting) (mmol/L): PCS (Low)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Direct bilirubin (μmol/L): PCS (High)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Aspartate aminotransferase (μkat/L): PCS (High)4 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Direct bilirubin (μmol/L): PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Glucose (non-fasting) (mmol/L): PCS (Low)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Inorganic phosphorus (mmol/L): PCS (Low)7 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Potassium (mmol/L): PCS (Low)5 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alanine aminotransferase (μkat/L): PCS (High)8 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alkaline phosphatase (μkat/L): PCS (Low)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Alkaline phosphatase (μkat/L): PCS (High)3 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Aspartate aminotransferase (μkat/L): PCS (High)4 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Bicarbonate (mmol/L) PCS (Low)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Creatinine (μmol/L): PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Glucose (non-fasting) (mmol/L): PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Gamma-glutamyl transferase (μkat/L):PCS (High)4 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Inorganic phosphorus (mmol/L): PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Potassium (mmol/L): PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Total bilirubin (μmol/L): PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Clinical Chemistry.Bicarbonate (mmol/L): PCS (High)0 Number of patients
Secondary

Safety and Tolerability: Clinical Laboratory Evaluation Hematology.

Potentially clinically significant (PCS) post Baseline hematology values up to LFU (Safety analysis set)

Time frame: study duration (from screening to Day 49 LFU visit)

Population: Safety analysis set: all patients who received at least 1 dose of IP

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.White blood cell: PCS (Low)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Red blood cell count: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.White blood cell: PCS (High)4 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Lymphocytes: PCS (Low)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Lymphocytes: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hematocrit (ratio): PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hemoglobin: PCS (Low)7 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hemoglobin: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Neutrophils: PCS (Low)4 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Neutrophils: PCS (High)9 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Eosinophils: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Monocytes: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Basophils: PCS (High)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Direct Coombs test:- at Baseline, + post-Baseline15 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hematocrit (ratio): PCS (Low)5 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Platelet count: PCS (Low)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Platelet count: PCS (High)5 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Red blood cell count: PCS (Low)7 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Red blood cell count: PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Red blood cell count: PCS (Low)13 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Neutrophils: PCS (High)8 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.White blood cell: PCS (Low)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hematocrit (ratio): PCS (Low)8 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Eosinophils: PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Lymphocytes: PCS (Low)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hematocrit (ratio): PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Lymphocytes: PCS (High)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Direct Coombs test:- at Baseline, + post-Baseline2 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Monocytes: PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.White blood cell: PCS (High)5 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Platelet count: PCS (High)4 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hemoglobin: PCS (Low)14 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Basophils: PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Hemoglobin: PCS (High)0 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Platelet count: PCS (Low)1 Number of patients
MeropenemSafety and Tolerability: Clinical Laboratory Evaluation Hematology.Neutrophils: PCS (Low)2 Number of patients
Secondary

Safety and Tolerability:ECG , QTcB and QTcF Intervals

Shifts in ECG interpretation and changes in QT, QTcB, and QTcF intervals , from baseline to post baseline.

Time frame: EOT visit/any observation on treatment

Population: Safety analysis set: all patients who received at least 1 dose of IP

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsNormal to Abnormal: Anytime up to EOT34 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥450 (ms)9 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsQT: ≥500 and increase from Baseline ≥60(ms)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥480 (ms)4 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsNormal to Abnormal: EOT17 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥480 (ms)2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥500 (ms)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QT: ≥30 (ms)115 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QT: ≥60 (ms)50 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QT: ≥30 (ms)24 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QT: ≥60 (ms)12 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥450(ms)57 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥480(ms)13 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥500 (ms)4 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsQTcB: ≥500 and increase from Baseline ≥60(ms)2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcB: ≥30 (ms)21 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcB: ≥60 (ms)2 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QTcB: ≥30 (ms)42 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QTcB: ≥60 (ms)6 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥450 (ms)19 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥500 (ms)1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsQTcF: ≥500 and increase from Baseline ≥60 (ms)0 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcF: ≥30 (ms)42 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcF: ≥60 (ms)4 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease QTcF: ≥30 (ms)21 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease QTcF: ≥60 (ms)7 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥450 (ms)18 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsNormal to Abnormal: Anytime up to EOT30 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥500 (ms)2 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥480 (ms)0 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsQT: ≥500 and increase from Baseline ≥60(ms)0 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsQTcB: ≥500 and increase from Baseline ≥60(ms)1 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease QTcF: ≥30 (ms)19 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcF: ≥30 (ms)41 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsNormal to Abnormal: EOT14 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥450 (ms)10 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcB: ≥30 (ms)27 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥480 (ms)1 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcF: ≥500 (ms)0 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QT: ≥500 (ms)0 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcB: ≥60 (ms)1 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QT: ≥30 (ms)114 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease QTcF: ≥60 (ms)1 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QT: ≥60 (ms)44 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QTcB: ≥30 (ms)26 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QT: ≥30 (ms)24 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsQTcF: ≥500 and increase from Baseline ≥60 (ms)0 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QT: ≥60 (ms)4 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsDecrease in QTcB: ≥60 (ms)4 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥450(ms)63 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsIncrease in QTcF: ≥60 (ms)3 Number of patients
MeropenemSafety and Tolerability:ECG , QTcB and QTcF IntervalsReaching a value in QTcB: ≥480(ms)8 Number of patients
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Extended microbiologically evaluable(ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=70, 80)69 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)21 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)14 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)16 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=70, 80)78 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)29 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)68 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)21 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)14 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)14 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)75 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)28 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: The mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus grou (n=8, 7)7 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)15 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28,35)22 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)4 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)77 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)6 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)5 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus grou (n=8, 7)6 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)86 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28,35)32 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)17 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Extended microbiologically evaluable(ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)4 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=70, 80)64 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)21 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)13 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)16 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=70, 80)75 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)28 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)21 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)63 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)13 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)4 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)14 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)27 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)72 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Extended microbiologically evaluable(ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)13 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Escherichia coli (n=70, 80)65 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)21 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Pseudomonas aeruginosa (n=14, 18)16 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Klebsiella pneumoniae (n=22, 30)29 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable(ME) Analysis Set.Escherichia coli (n=70, 80)77 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)13 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)21 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)64 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella pneumoniae (n=22, 29)28 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Pseudomonas aeruginosa (n=14, 16)14 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Escherichia coli (n=69, 77)74 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: The mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)3 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)6 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)70 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28, 35)22 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)14 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)4 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)4 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus group (n=8, 7)7 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28, 35)31 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus group (n=8, 7)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)17 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)82 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)4 Participants with favorable responses
Secondary

The Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients with a favorable per-pathogen microbiological response: favourable microbiological response includes: Eradication Absence of causative pathogen from specimens at the site of infection. Presumed eradication where, repeat cultures were not performed/clinically indicated in a patient who had a clinical response of cure.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: The mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)70 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)14 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus group (n=8, 7)7 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28,35)23 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)6 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)6 Participants with favorable responses
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)4 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecium (n=4, 7)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Escherichia coli (n=84, 89)84 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus anginosus group (n=8, 7)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella pneumoniae (n=28,35)31 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Enterococcus faecalis (n=6, 6)4 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Pseudomonas aeruginosa (n=17, 20)17 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Streptococcus mitis group (n=6, 5)5 Participants with favorable responses
MeropenemThe Proportion of Favorable Per-pathogen Microbiological Response in the Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Klebsiella oxytoca (n=5, 5)5 Participants with favorable responses
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable104 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable3 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable120 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable5 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable103 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable3 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable113 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable5 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: The microbiological modified intent-to-treat (mMITT) analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable126 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable6 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate11 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable140 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable7 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate5 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable90 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable7 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable106 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable6 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable89 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable7 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable100 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable6 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: The microbiological modified intent-to-treat (mMITT) analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable116 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable10 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate17 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable132 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable9 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate11 Number of patients
Secondary

The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.

The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Extended microbiologically evaluable(ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable22 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable1 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable25 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable1 Number of patients
Secondary

The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.

The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.Favorable22 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable1 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiologically Evaluable (ME) Analysis Set.Favorable23 Number of patients
Secondary

The Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The microbiological responses as per the protocoled criteria: responses other than indeterminate were classified as favorable or unfavorable. Favorable microbiological response assessments included eradication and presumed eradication. Unfavorable microbiological response assessments included persistence, persistence with increasing minimum inhibitory concentration (MIC), and presumed persistence. Indeterminate microbiologic response assessments included cases where the clinical response was changed to indeterminate due to an SRP assessment of inadequate source control (ie, circumstances that preclude classification as eradication, presumed eradication, persistence, persistence with increasing MIC, and presumed persistence).

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: The microbiological modified intent-to-treat (mMITT) analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable1 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable24 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate4 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable27 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable1 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per Patient Microbiological Response at the Test of Cure (TOC) Visit for Patients Infected With Ceftazidime Resistant Pathogens in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate1 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable93 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable7 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Favorable113 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Unfavorable6 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable92 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable7 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Favorable107 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Unfavorable6 Number of patients
Secondary

The Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

Per-patient favorable response indicates that all of the patient's baseline pathogens are eradicated or presumed eradicated.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: The microbiological modified intent-to-treat (mMITT) analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable119 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable10 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate14 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Favorable135 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Unfavorable9 Number of patients
MeropenemThe Proportion of Patients With a Favorable Per-patient Microbiological Response at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate8 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: The clinically evaluable (CE) analysis set included all patients who met the disease definition of cIAI and met the stringent criteria for clinical evaluation described in the protocol regarding dosing, concomitant medication, evaluation, etc.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure183 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure7 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure187 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure9 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure104 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure3 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure120 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure5 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure103 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure3 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure113 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure5 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the end of treatment (EOT) (within 24 hours after last IV dose)

Population: The microbiological modified intent-to-treat mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure126 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure6 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate11 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure140 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure7 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the End of Treatment (EOT) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate5 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At late follow up (LFU) visits (Day 42 to 49)

Population: The clinically evaluable (CE) analysis set included all patients who met the disease definition of cIAI and met the stringent criteria for clinical evaluation described in the protocol regarding dosing, concomitant medication, evaluation, etc.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure11 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure157 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical cure168 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Clinically Evaluable (CE) Analysis Set.Clinical failure11 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure90 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure7 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure106 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure6 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure89 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure7 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure100 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure6 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the late follow up (LFU) (Day 42 to 49)

Population: The microbiological modified intent-to-treat mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure116 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure10 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate17 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure132 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure9 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Late Follow up (LFU) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate11 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Extended microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture regardless of susceptibility.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure93 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure7 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical cure113 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Extended Microbiologically Evaluable (ME) Analysis Set.Clinical failure6 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: Microbiologically evaluable (ME) analysis set defined as all patients included in the clinically evaluable (CE) set with at least 1 Gram-negative aerobic pathogen in the initial/prestudy culture that was susceptible to both treatment groups.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure7 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure92 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical cure107 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiologically Evaluable (ME) Analysis Set.Clinical failure6 Number of patients
Secondary

The Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.

The proportion of patients meeting the cure criteria: complete resolution or significant improvement of signs and symptoms of the index infection such that no further antibacterial therapy, drainage, or surgical intervention was necessary.

Time frame: At the test of cure (TOC) (Day 28 to 35)

Population: The microbiological modified intent-to-treat mMITT analysis set included all randomized patients who met the disease definition of cIAI and had at least 1 etiologic pathogen identified at study entry (regardless of isolate susceptibilities). Patients with a bacterial species typically not expected to respond to both study drugs were excluded.

ArmMeasureGroupValue (NUMBER)
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure119 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure10 Number of patients
Ceftazidime-Avibactam Plus MetronidazoleThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate14 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical cure135 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Clinical failure9 Number of patients
MeropenemThe Proportion of Patients With Clinical Cure at the Test of Cure (TOC) Visit in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set.Indeterminate8 Number of patients
Secondary

The Time to First Defervescence in the Clinically Evaluable (CE) Analysis Set for Patients Who Have Fever at Study Entry.

Time to first defervescence was calculated for patients with a fever (\>38ºC) at baseline. Defervescence (≤37.8ºC) was defined as the absence of fever based on the highest temperature recorded on each study day. Time to first defervescence while on IV study therapy in the CE analysis set at TOC for patients who had fever at study entry is defined as time (in days) from the first dose of IV study therapy to first absence of fever.

Time frame: while on study therapy (from Day 1 to Day 14)

Population: Clinically evaluable (CE) with fever, defined as \>38ºC at study entry. No participants were censored at the time of last observation.

ArmMeasureValue (MEDIAN)
Ceftazidime-Avibactam Plus MetronidazoleThe Time to First Defervescence in the Clinically Evaluable (CE) Analysis Set for Patients Who Have Fever at Study Entry.1 Days
MeropenemThe Time to First Defervescence in the Clinically Evaluable (CE) Analysis Set for Patients Who Have Fever at Study Entry.1.5 Days
p-value: 0.773Log Rank
Secondary

The Time to First Defervescence in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set for Patients Who Have Fever at Study Entry.

Time to first defervescence was calculated for patients with a fever (\>38ºC) at baseline. Defervescence (≤37.8ºC) was defined as the absence of fever based on the highest temperature recorded on each study day. Time to first defervescence while on IV study therapy in the CE analysis set at TOC for patients who had fever at study entry is defined as time (in days) from the first dose of IV study therapy to first absence of fever.

Time frame: while on study therapy (from Day 1 to Day 14)

Population: microbiological modified intent-to-treat (mMITT) with fever, defined as \>38ºC at study entry. No participants were censored at the time of last observation.

ArmMeasureValue (MEDIAN)
Ceftazidime-Avibactam Plus MetronidazoleThe Time to First Defervescence in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set for Patients Who Have Fever at Study Entry.1 Days
MeropenemThe Time to First Defervescence in the Microbiological Modified Intent-to-treat (mMITT) Analysis Set for Patients Who Have Fever at Study Entry.2 Days
p-value: 0.598Log Rank

Source: ClinicalTrials.gov · Data processed: Mar 15, 2026