Trial Outcomes & Findings for Study to Compare TP-434 and Ertapenem in Community-acquired Complicated Intra-abdominal Infections (NCT NCT01265784)

NCT ID: NCT01265784

Last Updated: 2022-01-06

Results Overview

Clinical response was classified as cure (complete resolution or significant improvement of signs and symptoms of the index infection), failure (death related to complicated intra-abdominal infection \[cIAI\], persisting or recurrent infection within the abdomen, postsurgical wound infection, or administration of effective concomitant antibacterial therapy), or indeterminate (Test-of-Cure \[TOC\] assessment was not available, death unrelated to cIAI, or some other reason).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

143 participants

Primary outcome timeframe

TOC Visit (10-14 days after last dose of study drug)

Results posted on

2022-01-06

Participant Flow

Randomization was stratified by site of infection (complicated appendicitis versus all other diagnoses).

Participant milestones

Participant milestones
Measure
TP-434, 1.5 mg/kg q24h
TP-434 was administered intravenously (IV) at a dose of 1.5 milligrams per kilogram of body weight (mg/kg) every 24 hours (q24h) for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
TP-434 was administered IV at a dose of 1.0 mg/kg every 12 hours (q12h) for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem, 1 g q24h
Ertapenem was administered IV at a dose of 1 gram (g) q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Overall Study
STARTED
56
57
30
Overall Study
Received at Least 1 Dose of Study Drug
54
56
29
Overall Study
COMPLETED
44
49
26
Overall Study
NOT COMPLETED
12
8
4

Reasons for withdrawal

Reasons for withdrawal
Measure
TP-434, 1.5 mg/kg q24h
TP-434 was administered intravenously (IV) at a dose of 1.5 milligrams per kilogram of body weight (mg/kg) every 24 hours (q24h) for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
TP-434 was administered IV at a dose of 1.0 mg/kg every 12 hours (q12h) for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem, 1 g q24h
Ertapenem was administered IV at a dose of 1 gram (g) q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Overall Study
Lost to Follow-up
5
3
2
Overall Study
Withdrawal by Subject
0
5
0
Overall Study
Physician Decision
1
0
1
Overall Study
Adverse Event
1
0
0
Overall Study
Death
3
0
0
Overall Study
Protocol Violation
2
0
0
Overall Study
Incorrectly Randomized
0
0
1

Baseline Characteristics

Study to Compare TP-434 and Ertapenem in Community-acquired Complicated Intra-abdominal Infections

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
TP-434, 1.5 mg/kg q24h
n=56 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=57 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=30 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Total
n=143 Participants
Total of all reporting groups
Age, Continuous
43.6 years
STANDARD_DEVIATION 18.39 • n=5 Participants
42.1 years
STANDARD_DEVIATION 17.16 • n=7 Participants
41.8 years
STANDARD_DEVIATION 17.60 • n=5 Participants
42.6 years
STANDARD_DEVIATION 17.64 • n=4 Participants
Sex: Female, Male
Female
18 Participants
n=5 Participants
14 Participants
n=7 Participants
8 Participants
n=5 Participants
40 Participants
n=4 Participants
Sex: Female, Male
Male
38 Participants
n=5 Participants
43 Participants
n=7 Participants
22 Participants
n=5 Participants
103 Participants
n=4 Participants
Region of Enrollment
United States
0 participants
n=5 Participants
0 participants
n=7 Participants
1 participants
n=5 Participants
1 participants
n=4 Participants
Region of Enrollment
Romania
6 participants
n=5 Participants
9 participants
n=7 Participants
6 participants
n=5 Participants
21 participants
n=4 Participants
Region of Enrollment
Lithuania
17 participants
n=5 Participants
13 participants
n=7 Participants
7 participants
n=5 Participants
37 participants
n=4 Participants
Region of Enrollment
Bulgaria
9 participants
n=5 Participants
6 participants
n=7 Participants
3 participants
n=5 Participants
18 participants
n=4 Participants
Region of Enrollment
Latvia
8 participants
n=5 Participants
9 participants
n=7 Participants
4 participants
n=5 Participants
21 participants
n=4 Participants
Region of Enrollment
India
16 participants
n=5 Participants
20 participants
n=7 Participants
9 participants
n=5 Participants
45 participants
n=4 Participants

PRIMARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, had a baseline pathogen identified, and had a microbiological response assessed.

Clinical response was classified as cure (complete resolution or significant improvement of signs and symptoms of the index infection), failure (death related to complicated intra-abdominal infection \[cIAI\], persisting or recurrent infection within the abdomen, postsurgical wound infection, or administration of effective concomitant antibacterial therapy), or indeterminate (Test-of-Cure \[TOC\] assessment was not available, death unrelated to cIAI, or some other reason).

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=42 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=41 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=26 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Test-of-Cure Visit
Indeterminate
0 participants
0 participants
0 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Test-of-Cure Visit
Cure
39 participants
41 participants
24 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Test-of-Cure Visit
Failure
3 participants
0 participants
2 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the End-of-Treatment (EOT) Visit
Cure
49 participants
52 participants
28 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the End-of-Treatment (EOT) Visit
Failure
2 participants
1 participants
1 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the End-of-Treatment (EOT) Visit
Indeterminate
3 participants
3 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at TOC Visit
Cure
46 participants
47 participants
26 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at TOC Visit
Failure
3 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at TOC Visit
Indeterminate
5 participants
8 participants
1 participants

SECONDARY outcome

Timeframe: Follow-up Visit (28-42 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the Follow-up Visit
Cure
41 participants
45 participants
24 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the Follow-up Visit
Failure
4 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Modified Intent-to-treat (MITT) Population at the Follow-up Visit
Indeterminate
9 participants
10 participants
3 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug and met the minimal disease definition of intra-abdominal infection (IAI). The minimal disease definition included all IAI, whether complicated or not. Identification of a baseline pathogen was not required for this population.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the EOT Visit
Cure
49 participants
52 participants
28 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the EOT Visit
Failure
2 participants
1 participants
1 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the EOT Visit
Indeterminate
3 participants
3 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug and met the minimal disease definition of IAI. The minimal disease definition included all IAI, whether complicated or not. Identification of a baseline pathogen was not required for this population.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the TOC Visit
Cure
46 participants
47 participants
26 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the TOC Visit
Failure
3 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the TOC Visit
Indeterminate
5 participants
8 participants
1 participants

SECONDARY outcome

Timeframe: Follow-up Visit (28-42 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug and met the minimal disease definition of IAI. The minimal disease definition included all IAI, whether complicated or not. Identification of a baseline pathogen was not required for this population.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=54 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=29 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the Follow-up Visit
Cure
41 participants
45 participants
24 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the Follow-up Visit
Failure
4 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Modified Intent-to-treat (c-MITT) Population at the Follow-up Visit
Indeterminate
9 participants
10 participants
3 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and had a baseline pathogen identified. The minimal disease definition of cIAI included IAI that extended beyond the hollow viscus of origin into the peritoneal space and was associated with either abscess formation or peritonitis.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=45 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=27 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the EOT Visit
Cure
41 participants
44 participants
26 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the EOT Visit
Failure
2 participants
0 participants
1 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the EOT Visit
Indeterminate
2 participants
3 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and had a baseline pathogen identified. The minimal disease definition of cIAI included IAI that extended beyond the hollow viscus of origin into the peritoneal space and was associated with either abscess formation or peritonitis.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=45 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=27 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the TOC Visit
Cure
39 participants
41 participants
24 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the TOC Visit
Failure
3 participants
0 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the TOC Visit
Indeterminate
3 participants
6 participants
1 participants

SECONDARY outcome

Timeframe: Follow-Up Visit (28-42 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and had a baseline pathogen identified. The minimal disease definition of cIAI included IAI that extended beyond the hollow viscus of origin into the peritoneal space and was associated with either abscess formation or peritonitis.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=45 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=27 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the Follow-up Visit
Cure
36 participants
39 participants
22 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the Follow-up Visit
Failure
4 participants
0 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Modified Intent-to-treat (m-MITT) Population at the Follow-up Visit
Indeterminate
5 participants
8 participants
3 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and for whom sufficient information was available to determine the participant's outcome with no confounding factors present that interfered with the assessment of that outcome.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=49 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=48 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=28 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the EOT Visit
Cure
47 participants
47 participants
27 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the EOT Visit
Failure
2 participants
1 participants
1 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the EOT Visit
Indeterminate
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and for whom sufficient information was available to determine the participant's outcome with no confounding factors present that interfered with the assessment of that outcome.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=49 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=48 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=28 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the TOC Visit
Cure
46 participants
47 participants
26 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the TOC Visit
Failure
3 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the TOC Visit
Indeterminate
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Follow-up Visit (28-42 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and for whom sufficient information was available to determine the participant's outcome with no confounding factors present that interfered with the assessment of that outcome.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=49 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=48 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=28 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the Follow-up Visit
Cure
41 participants
45 participants
23 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the Follow-up Visit
Failure
4 participants
1 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Clinically Evaluable (CE) Population at the Follow-up Visit
Indeterminate
4 participants
2 participants
3 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, had a baseline pathogen identified, and had a microbiological response assessed.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=42 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=41 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=26 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the EOT Visit
Cure
40 participants
41 participants
25 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the EOT Visit
Failure
2 participants
0 participants
1 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the EOT Visit
Indeterminate
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Follow-up Visit (28-42 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, had a baseline pathogen identified, and had a microbiological response assessed.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=42 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=41 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=26 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Follow-up Visit
Cure
36 participants
39 participants
21 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Follow-up Visit
Failure
4 participants
0 participants
2 participants
Clinical Response to TP-434 and Ertapenem in the Microbiologically Evaluable (ME) Population at the Follow-up Visit
Indeterminate
2 participants
2 participants
3 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and had a baseline pathogen identified. The minimal disease definition of cIAI included IAI that extended beyond the hollow viscus of origin into the peritoneal space and was associated with either abscess formation or peritonitis.

Microbiological response was classified as favorable (eradication or presumed eradication), unfavorable (persistence, presumed persistence, superinfection, or new infection), or indeterminate (assessment not possible).

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=45 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=27 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the EOT Visit
Favorable
41 participants
44 participants
26 participants
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the EOT Visit
Unfavorable
2 participants
0 participants
1 participants
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the EOT Visit
Indeterminate
2 participants
3 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, and had a baseline pathogen identified. The minimal disease definition of cIAI included IAI that extended beyond the hollow viscus of origin into the peritoneal space and was associated with either abscess formation or peritonitis.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=45 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=27 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the TOC Visit
Favorable
39 participants
42 participants
24 participants
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the TOC Visit
Unfavorable
3 participants
0 participants
2 participants
Microbiologic Response to TP-434 and Ertapenem in the m-MITT Population at the TOC Visit
Indeterminate
3 participants
5 participants
1 participants

SECONDARY outcome

Timeframe: EOT Visit (4-14 days after first dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, had a baseline pathogen identified, and had a microbiological response assessed.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=42 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=41 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=26 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the EOT Visit
Favorable
40 participants
41 participants
25 participants
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the EOT Visit
Unfavorable
2 participants
0 participants
1 participants
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the EOT Visit
Indeterminate
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: TOC Visit (10-14 days after last dose of study drug)

Population: All randomized participants who received at least 1 dose of study drug, met the minimal disease definition of cIAI, had a baseline pathogen identified, and had a microbiological response assessed.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=42 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=41 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=26 Participants
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the TOC Visit
Favorable
39 participants
41 participants
24 participants
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the TOC Visit
Unfavorable
3 participants
0 participants
2 participants
Microbiologic Response to TP-434 and Ertapenem in the ME Population at the TOC Visit
Indeterminate
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Prior to first infusion and 1, 3, 7, 12, 48, and 108 hours after start of first infusion

Population: All randomized participants without significant protocol deviations who received at least 1 dose of TP-434 and had evaluable Cmax data.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=48 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=51 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Pharmacokinetics: Maximum Concentration (Cmax) of TP-434
1445.625 nanograms per milliliter (ng/mL)
Standard Deviation 1168.029
952.608 nanograms per milliliter (ng/mL)
Standard Deviation 759.754

SECONDARY outcome

Timeframe: Prior to first infusion and 1, 3, 7, 12, 48, and 108 hours after start of first infusion

Population: All randomized participants without significant protocol deviations who received at least 1 dose of TP-434 and had evaluable AUC(0-12) data.

Outcome measures

Outcome measures
Measure
TP-434, 1.5 mg/kg q24h
n=48 Participants
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=47 Participants
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Pharmacokinetics: Area Under the Concentration Time Curve From Time 0 to 12 Hours (AUC[0-12]) of TP-434
4349.900 nanogram*hours per milliliter (ng*h/mL)
Standard Deviation 2186.791
3240.724 nanogram*hours per milliliter (ng*h/mL)
Standard Deviation 1732.172

Adverse Events

TP-434, 1.5 mg/kg q24h

Serious events: 6 serious events
Other events: 11 other events
Deaths: 0 deaths

TP-434, 1.0 mg/kg q12h

Serious events: 1 serious events
Other events: 10 other events
Deaths: 0 deaths

Ertapenem 1 g q24h

Serious events: 1 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
TP-434, 1.5 mg/kg q24h
n=53 participants at risk
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 participants at risk
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=30 participants at risk
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Infections and infestations
Lobar Pneumonia
1.9%
1/53
0.00%
0/56
0.00%
0/30
Gastrointestinal disorders
Duodenal Ulcer Haemorrhage
1.9%
1/53
0.00%
0/56
0.00%
0/30
Infections and infestations
Abdominal Wall Abscess
1.9%
1/53
0.00%
0/56
0.00%
0/30
Cardiac disorders
Atrial Fibrillation
1.9%
1/53
0.00%
0/56
0.00%
0/30
Vascular disorders
Embolism
1.9%
1/53
0.00%
0/56
0.00%
0/30
Gastrointestinal disorders
Ileus
1.9%
1/53
0.00%
0/56
0.00%
0/30
Infections and infestations
Wound Infection
0.00%
0/53
1.8%
1/56
0.00%
0/30
Infections and infestations
Subdiaphragmatic Abscess
0.00%
0/53
0.00%
0/56
3.3%
1/30

Other adverse events

Other adverse events
Measure
TP-434, 1.5 mg/kg q24h
n=53 participants at risk
TP-434 was administered IV at a dose of 1.5 mg/kg q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
TP-434, 1.0 mg/kg q12h
n=56 participants at risk
TP-434 was administered IV at a dose of 1.0 mg/kg q12h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Ertapenem 1 g q24h
n=30 participants at risk
Ertapenem was administered IV at a dose of 1 g q24h for a minimum of 4 days and a maximum of 14 days (7 days for participants in India).
Gastrointestinal disorders
Abdominal Pain
3.8%
2/53
0.00%
0/56
0.00%
0/30
Gastrointestinal disorders
Nausea
1.9%
1/53
10.7%
6/56
6.7%
2/30
Gastrointestinal disorders
Vomiting
5.7%
3/53
1.8%
1/56
0.00%
0/30
General disorders
Application Site Hypersensitivity
0.00%
0/53
0.00%
0/56
3.3%
1/30
General disorders
Pyrexia
1.9%
1/53
1.8%
1/56
3.3%
1/30
Immune system disorders
Hypersensitivity
0.00%
0/53
0.00%
0/56
3.3%
1/30
Investigations
Blood Amylase Increased
5.7%
3/53
3.6%
2/56
3.3%
1/30
Investigations
Lipase Increased
5.7%
3/53
7.1%
4/56
6.7%
2/30
Metabolism and nutrition disorders
Hypoalbuminaemia
1.9%
1/53
0.00%
0/56
3.3%
1/30
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/53
0.00%
0/56
3.3%
1/30
Renal and urinary disorders
Haematuria
0.00%
0/53
0.00%
0/56
3.3%
1/30
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/53
1.8%
1/56
3.3%
1/30
Vascular disorders
Thrombophlebitis
1.9%
1/53
3.6%
2/56
0.00%
0/30

Additional Information

Chief Development Officer

La Jolla Pharmaceutical Company

Phone: +1.617.715.3600

Results disclosure agreements

  • Principal investigator is a sponsor employee At least 60 days prior to submitting or presenting a manuscript, poster, presentation, abstract or other materials relating to the Trial, the PI shall provide to Sponsor all such manuscripts and materials, and Sponsor shall have 60 days to review and comment. If requested, the PI shall remove Confidential lnformation prior to submitting or presenting the materials, and shall delay publication or presentation for up to 90 days to allow Sponsor to protect its interests in any such materials.
  • Publication restrictions are in place

Restriction type: OTHER