Study to Evaluate the Efficacy and Safety of Intravenous Sulbactam-ETX2514 in the Treatment of Patients With Infections Caused by Acinetobacter Baumannii-calcoaceticus Complex (ATTACK)
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ClinicalTrials.gov Identifier: NCT03894046 |
Recruitment Status :
Completed
First Posted : March 28, 2019
Results First Posted : February 1, 2023
Last Update Posted : February 1, 2023
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Sponsor:
Entasis Therapeutics
Information provided by (Responsible Party):
Entasis Therapeutics
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: None (Open Label); Primary Purpose: Treatment |
Conditions |
Acinetobacter Baumannii-calcoaceticus Complex Hospital-acquired Bacterial Pneumonia Ventilator-associated Bacterial Pneumonia Bacteremia Colistin Resistant ABC |
Interventions |
Drug: Sulbactam Drug: Durlobactam Drug: Colistin Drug: Imipenem/Cilastatin 500 mg/500 mg |
Enrollment | 207 |
Participant Flow
Recruitment Details | |
Pre-assignment Details | The total number of participants enrolled in the study was 207. However, two (2) patients were transferred from Part A to part B. These participants were analyzed at each arm until/ from the time point of transfer. |
Arm/Group Title | Part A - Group 1 | Part A - Group 2 | Part B - Group 3 |
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Arm/Group Description |
Experimental. 1.0 g sulbactam/1.0 g durlobactam IV infused over 3 hours every 6 hours (q6h) plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h; |
Control group. 2.5 mg/kg colistin IV infused over 30 minutes every 12 hours (after an initial loading dose of colistin 2.5 to 5 mg/kg) plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h. |
Experimental. Group 3: 1.0 g ETX2514/1.0 g sulbactam IV infused over 3 hours q6h plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h. |
Period Title: Overall Study | |||
Started | 92 | 89 | 26 |
Completed | 69 | 61 | 20 |
Not Completed | 23 | 28 | 6 |
Reason Not Completed | |||
Protocol Violation | 1 | 0 | 0 |
Adverse Event | 0 | 1 | 0 |
Withdrawal by Subject | 2 | 3 | 1 |
Death | 15 | 21 | 4 |
No growth of ABC | 2 | 1 | 0 |
Physician Decision | 1 | 1 | 1 |
Prohibited concomitant medication | 1 | 0 | 0 |
Transferred to other arm/group | 1 | 1 | 0 |
Baseline Characteristics
Arm/Group Title | Part A- Group 1 | Part A - Group 2 | Part B - Group 3 | Total | |
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Arm/Group Description | Experimental. Group 1 (experimental): 1.0 g sulbactam/1.0 g durlobactam IV infused over 3 hours every 6 hours (q6h) plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h; | Control Group (active comparator). Group 2 (control group): 2.5 mg/kg colistin IV infused over 30 minutes every 12 hours (after an initial loading dose of colistin 2.5 to 5 mg/kg) plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h. | Experimental. Group 3: 1.0 g ETX2514/1.0 g sulbactam IV infused over 3 hours q6h plus 1.0 g imipenem/1.0 g cilastatin IV infused over 1 hour q6h. | Total of all reporting groups | |
Overall Number of Baseline Participants | 92 | 89 | 26 | 207 | |
Baseline Analysis Population Description |
Two (2) participants were transferred from Part A to part B. These participants were analyzed at each arm until/ from the time point of transfer. The number of participants is reported according to the initial Arm/group in which individual participant was assigned.
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Age, Categorical
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 92 participants | 89 participants | 26 participants | 207 participants | |
<=18 years |
0 0.0%
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0 0.0%
|
0 0.0%
|
0 0.0%
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Between 18 and 65 years |
43 46.7%
|
37 41.6%
|
18 69.2%
|
98 47.3%
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>=65 years |
49 53.3%
|
52 58.4%
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8 30.8%
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109 52.7%
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Age, Continuous
Mean (Standard Deviation) Unit of measure: Years |
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Number Analyzed | 92 participants | 89 participants | 26 participants | 207 participants | |
63.4 (15.42) | 66.9 (17.13) | 56.2 (16.33) | 59.8 (16.45) | ||
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 92 participants | 89 participants | 26 participants | 207 participants | |
Female |
24 26.1%
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23 25.8%
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5 19.2%
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52 25.1%
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|
Male |
68 73.9%
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66 74.2%
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21 80.8%
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155 74.9%
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Race (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 92 participants | 89 participants | 26 participants | 207 participants | |
American Indian or Alaska Native |
5 5.4%
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2 2.2%
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0 0.0%
|
7 3.4%
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Asian |
33 35.9%
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44 49.4%
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3 11.5%
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80 38.6%
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|
Native Hawaiian or Other Pacific Islander |
0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
|
|
Black or African American |
0 0.0%
|
1 1.1%
|
0 0.0%
|
1 0.5%
|
|
White |
48 52.2%
|
41 46.1%
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23 88.5%
|
112 54.1%
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More than one race |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Unknown or Not Reported |
6 6.5%
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1 1.1%
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0 0.0%
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7 3.4%
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Outcome Measures
Adverse Events
Limitations and Caveats
[Not Specified]
More Information
Results Point of Contact
Name/Title: | Dr. David Altarac - Chief Medical Officer |
Organization: | Entasis Therapeutics |
Phone: | +1 781 810 0120 |
EMail: | david.altarac@entasistx.com |
Responsible Party: | Entasis Therapeutics |
ClinicalTrials.gov Identifier: | NCT03894046 |
Other Study ID Numbers: |
CS2514-2017-0004 |
First Submitted: | March 27, 2019 |
First Posted: | March 28, 2019 |
Results First Submitted: | November 7, 2022 |
Results First Posted: | February 1, 2023 |
Last Update Posted: | February 1, 2023 |