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WithdrawnNCT05146154Updated Nov 27, 2024

Impact of Obesity on the Pharmacokinetics of Imipenem-Relebactam in ICU Patients

A Phase 4 interventional study of Imipenem/Cilastatin/Relebactam 1.25g in Obesity and Critical Illness, sponsored by University of Illinois at Chicago. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-11-27.

Sponsored by University of Illinois at Chicago · Phase 4, Interventional, and Other

Why this study was withdrawn
Investigator is no longer at University of Illinois
Phase
Phase 4
Study type
Interventional
Enrollment
0
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is an open-label, multiple-dose pharmacokinetic study of imipenem-relebactam conducted in 12 non-infected, obese ICU patients.

02

Conditions studied

  • Obesity
  • Critical Illness
03

In context

Obesity

6,296 studies on the registry are indexed under Obesity; 1,692 are open to participants now.

Browse Obesity studies →

Lead sponsor

University of Illinois at Chicago is the lead sponsor of 515 studies on the registry; 133 are open to participants now.

Of its 31 completed or terminated interventional studies of FDA-regulated products, 18 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age ≥18 years of age
  2. Admitted to the ICU
  3. BMI ≥40 kg/m2 and/or total body weight ≥120 kg
  4. Provide a signed and dated written informed consent prior to study participation

Exclusion criteria

Exclusion Criteria:

  1. History of significant hypersensitivity reaction or intolerance to imipenem/cilastatin or carbapenem-based agents (doripenem, ertapenem, or meropenem +/- vaborbactam)
  2. History of seizures and/or receiving 1 or more anti-epileptic agent
  3. Serum creatinine ≥1.5 mg/dL
  4. Estimated creatinine clearance (CLCR) \<60 mL/minute as determined by Cockcroft-Gault equation:
  5. Actively receiving antimicrobial therapy for treatment of a confirmed or suspected infection
  6. The subject has participated in a clinical trial and has received a drug or a new chemical entity within 30 days prior to the first dose of study medication
  7. Positive serum pregnancy test (for women of childbearing potential)
  8. Currently breast feeding
  9. Has previously participated in this study
  10. Concomitant use of valproic acid or divalproex sodium
  11. Any other condition that may make the patient unsuitable for the study in the judgement of the investigator
05

Study design

Phase
Phase 4
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Pharmacokinetic cohort

    After at least 2 doses of study drug, serial blood samples will be collected from 12 non-infected, obese ICU patients to evaluate the pharmacokinetics of imipenem and relebactam in this population.

    Drug: Imipenem/Cilastatin/Relebactam 1.25g

  • Experimental
    Safety cohort

    After at least 2 doses of study drug, safety will be monitored closely during study drug dosing and through 72 hours after the last dose is administered in the same 12 non-infected, obese ICU patients from the PK arm

    Drug: Imipenem/Cilastatin/Relebactam 1.25g

Interventions

  • DrugImipenem/Cilastatin/Relebactam 1.25g

    Imipenem/cilastatin/relebactam is a combination beta-lactam/beta-lactamase inhibitor antimicrobial marketed under the brand name Recarbrio and the approved dose is 1.25g Q6h in patients with normal renal function. The individual components of this agent must be administered together and cannot be separated. Therefore, this constitutes only one intervention. Each subject will receive at least 2 doses of study drug.

    Also known as: Recarbrio

06

What researchers measure

Primary outcomes

  1. Pharmacokinetic parameters of imipenem and relebactam

    Peak Plasma Concentration (Cmax)

    Time frame: 6 months

  2. Pharmacokinetic parameters of imipenem and relebactam

    Area under the plasma concentration versus time curve (AUC)

    Time frame: 6 months

  3. Pharmacokinetic parameters of imipenem and relebactam

    Total body clearance (CLt)

    Time frame: 6 months

  4. Pharmacokinetic parameters of imipenem and relebactam

    Apparent volume of distribution (Vd)

    Time frame: 6 months

Secondary outcomes

  1. Safety of imipenem and relebactam

    Monitoring for adverse drug events

    Time frame: 6 months

07

Study locations

1 site
  • University of Illinois at Chicago
    Chicago, Illinois 60612, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 27, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05146154
Lead sponsor
University of Illinois at Chicago
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Dec 6, 2021
Start date
Jan 1, 2023 (estimated)
Primary completion
Jun 1, 2023 (estimated)
Completion
Jan 1, 2024 (estimated)
Last update
Nov 27, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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