Trial Outcomes & Findings for Imipenem/Cilastatin/Relebactam PK in ECMO (NCT NCT04493151)

NCT ID: NCT04493151

Last Updated: 2024-08-07

Results Overview

The clearance in liters/hour of imipenem from the plasma of critically ill patients receiving ECMO.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

8 participants

Primary outcome timeframe

6 hours (samples collected before the first imipenem/cilastatin/relebactam dose (i.e., blank), and at 0.5 and 6 hours following the first dose, and then at 0, 0.5, 0.75, 1, 2, 4, 5, and 6 hours after the start of the final dose).

Results posted on

2024-08-07

Participant Flow

Participant milestones

Participant milestones
Measure
Imipenem-Cilastatin-Relebactam
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Overall Study
STARTED
8
Overall Study
COMPLETED
7
Overall Study
NOT COMPLETED
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Imipenem/Cilastatin/Relebactam PK in ECMO

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Imipenem-Cilastatin-Relebactam
n=7 Participants
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
7 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Age, Continuous
50 Years
STANDARD_DEVIATION 16 • n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
Sex: Female, Male
Male
5 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
Race (NIH/OMB)
White
3 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
Region of Enrollment
United States
7 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 hours (samples collected before the first imipenem/cilastatin/relebactam dose (i.e., blank), and at 0.5 and 6 hours following the first dose, and then at 0, 0.5, 0.75, 1, 2, 4, 5, and 6 hours after the start of the final dose).

The clearance in liters/hour of imipenem from the plasma of critically ill patients receiving ECMO.

Outcome measures

Outcome measures
Measure
Imipenem-Cilastatin-Relebactam
n=7 Participants
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Imipenem Clearance
15.21 Liters per hour
Standard Deviation 6.52

PRIMARY outcome

Timeframe: 6 hours (samples collected before the first imipenem/cilastatin/relebactam dose (i.e., blank), and at 0.5 and 6 hours following the first dose, and then at 0, 0.5, 0.75, 1, 2, 4, 5, and 6 hours after the start of the final dose).

The clearance in liters/hour of relebactam from the plasma of critically ill patients receiving ECMO.

Outcome measures

Outcome measures
Measure
Imipenem-Cilastatin-Relebactam
n=7 Participants
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Relebactam Clearance
6.95 Liters per hour
Standard Deviation 1.34

SECONDARY outcome

Timeframe: 6 hours (samples collected before the first imipenem/cilastatin/relebactam dose (i.e., blank), and at 0.5 and 6 hours following the first dose, and then at 0, 0.5, 0.75, 1, 2, 4, 5, and 6 hours after the start of the final dose).

The AUC in milligram\*hour/liter of imipenem calculated from concentrations collected between zero and 6 hours at steady-state

Outcome measures

Outcome measures
Measure
Imipenem-Cilastatin-Relebactam
n=7 Participants
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Imipenem Area Under the Curve (AUC)
36.9 mg*h/L
Standard Deviation 13.3

SECONDARY outcome

Timeframe: 6 hours (samples collected before the first imipenem/cilastatin/relebactam dose (i.e., blank), and at 0.5 and 6 hours following the first dose, and then at 0, 0.5, 0.75, 1, 2, 4, 5, and 6 hours after the start of the final dose).

The AUC in milligram\*hour/liter of relebactam calculated from concentrations collected between zero and 6 hours at steady-state

Outcome measures

Outcome measures
Measure
Imipenem-Cilastatin-Relebactam
n=7 Participants
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Relebactam Area Under the Curve (AUC)
45.3 mg*h/L
Standard Deviation 33.2

Adverse Events

Imipenem-Cilastatin-Relebactam

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Imipenem-Cilastatin-Relebactam
n=8 participants at risk
Participants will receive a four to six doses of intravenous imipenem-cilastatin-relebactam as per current prescribing information based on estimated creatinine clearance. Imipenem, Cilastatin and Relebactam: After receipt of imipenem-cilastatin-relebactam, ten blood samples will be collected to determine the pharmacokinetics of imipenem and relebactam.
Hepatobiliary disorders
Alkaline Phosphate Increase
12.5%
1/8 • Number of events 1 • Adverse events were collected over a 48 hour window, from the first imipenem-relebactam dose (0 hour) to the end of blood sampling (6 hours), plus an 24 hour observation window after the last sample was collected, culminating with physical exam. Note: 8 subjects were enrolled and received imipenem-relebactam. Although only 7 subjects were included in results analysis due to inability to obtain blood samples in 1 subject, all 8 subjects are included in the adverse event reporting.
Adverse event - any pathologic or unintended change in the structure (signs), function (symptoms), or chemistry (laboratory values) of the body associated with the use of the study drug, whether or not considered drug related: MILD - present, but easily tolerated MODERATE - discomfort that interferes with usual activities SEVERE - incapacitating, inability to work or do usual activities
Gastrointestinal disorders
C. difficile Diarrhea
12.5%
1/8 • Number of events 1 • Adverse events were collected over a 48 hour window, from the first imipenem-relebactam dose (0 hour) to the end of blood sampling (6 hours), plus an 24 hour observation window after the last sample was collected, culminating with physical exam. Note: 8 subjects were enrolled and received imipenem-relebactam. Although only 7 subjects were included in results analysis due to inability to obtain blood samples in 1 subject, all 8 subjects are included in the adverse event reporting.
Adverse event - any pathologic or unintended change in the structure (signs), function (symptoms), or chemistry (laboratory values) of the body associated with the use of the study drug, whether or not considered drug related: MILD - present, but easily tolerated MODERATE - discomfort that interferes with usual activities SEVERE - incapacitating, inability to work or do usual activities
Infections and infestations
Increasing Leukocytosis
25.0%
2/8 • Adverse events were collected over a 48 hour window, from the first imipenem-relebactam dose (0 hour) to the end of blood sampling (6 hours), plus an 24 hour observation window after the last sample was collected, culminating with physical exam. Note: 8 subjects were enrolled and received imipenem-relebactam. Although only 7 subjects were included in results analysis due to inability to obtain blood samples in 1 subject, all 8 subjects are included in the adverse event reporting.
Adverse event - any pathologic or unintended change in the structure (signs), function (symptoms), or chemistry (laboratory values) of the body associated with the use of the study drug, whether or not considered drug related: MILD - present, but easily tolerated MODERATE - discomfort that interferes with usual activities SEVERE - incapacitating, inability to work or do usual activities
Hepatobiliary disorders
Aspartate Aminotransferase Increase
12.5%
1/8 • Number of events 1 • Adverse events were collected over a 48 hour window, from the first imipenem-relebactam dose (0 hour) to the end of blood sampling (6 hours), plus an 24 hour observation window after the last sample was collected, culminating with physical exam. Note: 8 subjects were enrolled and received imipenem-relebactam. Although only 7 subjects were included in results analysis due to inability to obtain blood samples in 1 subject, all 8 subjects are included in the adverse event reporting.
Adverse event - any pathologic or unintended change in the structure (signs), function (symptoms), or chemistry (laboratory values) of the body associated with the use of the study drug, whether or not considered drug related: MILD - present, but easily tolerated MODERATE - discomfort that interferes with usual activities SEVERE - incapacitating, inability to work or do usual activities

Additional Information

Dr. Joseph L. Kuti, PharmD, FIDP, FCCP

Center for Anti-Infective Research and Development, Hartford Hospital

Phone: (860) 972-3612

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place