Clinical trial • Phase II | Phase IV • Infectious Disease

CEFTAZIDIME for Sepsis | Gram-negative sepsis

Phase II | Phase IV trial of CEFTAZIDIME for Sepsis | Gram-negative sepsis.

Overview

Trial Therapeutic Area
Infectious Disease
Trial Disease
Sepsis | Gram-negative sepsis
Trial Stage
Phase II | Phase IV
Drug Modality
Small molecule

Key dates

Initial CTIS Submission Date
04-04-2025
First CTIS Authorization Date
24-07-2025

Trial design

Comparator arm: CEFTAZIDIME (standard regimen) — solution for injection, intravenous; product record indicates max daily dose 6 g. Test arm: CEFTAZIDIME modified dosing regimen with modified loading dose of 4 g (instead of 2 g) and modified maintenance dosing: 8 g/day if GFR > 90, 6 g/day if GFR between 40 and 90, 4 g/day if GFR between 15 and 30 (intravenous).-controlled Phase II | Phase IV trial in France.

Comparator
Comparator arm: CEFTAZIDIME (standard regimen) — solution for injection, intravenous; product record indicates max daily dose 6 g. Test arm: CEFTAZIDIME modified dosing regimen with modified loading dose of 4 g (instead of 2 g) and modified maintenance dosing: 8 g/day if GFR > 90, 6 g/day if GFR between 40 and 90, 4 g/day if GFR between 15 and 30 (intravenous).
Target Sample Size
128
Trial Duration For Participant
28

Eligibility

Recruits 128 Vulnerable populations are not selected. Exclusion criteria explicitly exclude persons deprived of liberty/hospitalized without consent and adults under legal protection measures (guardianship/curatorship). Subject information and informed consent forms (L1_SIS and ICF documents, including continuation and proxy versions) are listed in the application..

Pregnancy Exclusion
Pregnant, parturient and nursing women
Vulnerable Population
Vulnerable populations are not selected. Exclusion criteria explicitly exclude persons deprived of liberty/hospitalized without consent and adults under legal protection measures (guardianship/curatorship). Subject information and informed consent forms (L1_SIS and ICF documents, including continuation and proxy versions) are listed in the application.

Inclusion criteria

  • {"criterion_text":"- Patient at least 18 years old\n- Patient hospitalized in critical care for an expected duration of at least 72 hours, with an infection for which initiation of ceftazidime therapy is being considered\n- Patient with arterial catheter for blood sampling\n- Patient affiliated to or entitled under a social security scheme"}

Exclusion criteria

  • {"criterion_text":"- Pregnant, parturient and nursing women\n- Person deprived of liberty, hospitalized without consent\n- Adult subject to a legal protection measure (guardianship-curatorship)\n- History of severe hypersensitivity to ceftazidime, other cephalosporins or any other type of beta-lactam\n- Patients who have received ceftazidime within the last 72 hours\n- Patients undergoing renal replacement therapy or whose CKD-EPI at the start of treatment is less than 15 ml/min"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Percentage of subjects with a ceftazidime concentration equal to or above the target concentration threshold (35 mg/L) at both 3h and 24h after the first administration and below the toxicity threshold of 100 mg/L","definition_or_measurement_approach":"Ceftazidime plasma concentration measured at 3 hours and 24 hours after first administration; target defined as ≥35 mg/L at both timepoints and <100 mg/L (toxicity threshold)."}

Secondary endpoints

  • {"endpoint_text":"- Patient severity assessed using the SOFA (Sepsis related Organ Failure Assessment) score at D0 and D7. The SOFA score is a tool used in intensive care to assess the severity of organ failure in critical patients. The score assesses the function of six systems: respiratory, cardiovascular, hepatic, hemostatic, renal and neurological. Each system is scored from 0 to 4, meaning that the total SOFA score can vary from 0 to 24. There is no specific threshold for determining disease severity, as the S","definition_or_measurement_approach":"SOFA score calculated at baseline (D0) and Day 7, summing scores (0–4) across six organ systems to assess change in organ dysfunction/severity."}
  • {"endpoint_text":"- Death up to D28","definition_or_measurement_approach":"All-cause mortality assessed through Day 28 after inclusion/treatment initiation."}
  • {"endpoint_text":"- Occurrence of neurological adverse events defined as: seizure, myoclonus, encephalopathy or delirium, altered consciousness (Glasgow score)","definition_or_measurement_approach":"Recording and classification of neurological adverse events including seizures, myoclonus, encephalopathy, delirium, and changes in Glasgow Coma Scale."}
  • {"endpoint_text":"- Occurrence of an overdose defined as a concentration greater than 100 mg/L","definition_or_measurement_approach":"Ceftazidime plasma concentration measurements; overdose defined as >100 mg/L."}
  • {"endpoint_text":"- Renal function assessed using the following estimators: creatinemia cystatin CKD-EPI, creatinuria/creatininemia ratio (U×V/P) and eGFR creat-cystatin","definition_or_measurement_approach":"Assessment of renal function using serum creatinine and cystatin C-based CKD-EPI, urine creatinine/serum creatinine ratio (U×V/P), and combined creatinine–cystatin eGFR estimators."}
  • {"endpoint_text":"- Time to reach PK/PD targets (in hours post treatment introduction)","definition_or_measurement_approach":"Time (hours) from treatment initiation until predefined PK/PD targets are achieved, measured via plasma concentrations and PK/PD calculations."}

Recruitment

Planned Sample Size
128
Recruitment Window Months
13
Consent Approach
Informed consent required from adult participants (≥18 years). Subject information and ICF documents are included (L1_SIS and ICF patient; continuation versions; proxy/relative versions). Exclusion criteria exclude persons hospitalized without consent and those deprived of liberty. No details on languages or remote consent procedures are provided in the record.

Geography

Total Number Of Sites
8
Total Number Of Participants
128

France

Earliest CTIS Part Ii Submission Date
12-06-2025
Latest Decision Or Authorization Date
12-02-2026
Processing Time Days
245
Number Of Sites
8
Number Of Participants
128

Sites

Site Name
Hospices Civils De Lyon
Department Name
Médecine intensive réanimation
Principal Investigator Name
Laurent ARGAUD
Principal Investigator Email
laurent.argaud@chu-lyon.fr
Contact Person Name
Laurent ARGAUD
Contact Person Email
laurent.argaud@chu-lyon.fr
Site Name
Centre Hospitalier Universitaire De Saint Etienne
Department Name
Réanimation néphrologie
Principal Investigator Name
Christophe MARIAT
Principal Investigator Email
christophe.mariat@chu-st-etienne.fr
Contact Person Name
Christophe MARIAT
Site Name
Hospices Civils De Lyon
Department Name
Médecine intensive réanimation
Principal Investigator Name
Hodane YONIS
Principal Investigator Email
hodane.yonis@chu-lyon.fr
Contact Person Name
Hodane YONIS
Contact Person Email
hodane.yonis@chu-lyon.fr
Site Name
Hospices Civils De Lyon
Department Name
Médecine intensive réanimation
Principal Investigator Name
Auguste DARGENT
Principal Investigator Email
auguste.dargent@chu-lyon.fr
Contact Person Name
Auguste DARGENT
Contact Person Email
auguste.dargent@chu-lyon.fr
Site Name
Centre Hospitalier Universitaire Grenoble Alpes
Department Name
Médecine intensive
Principal Investigator Name
Guillaume DUMAS
Principal Investigator Email
GDumasgalant@chu-grenoble.fr
Contact Person Name
Guillaume DUMAS
Contact Person Email
GDumasgalant@chu-grenoble.fr
Site Name
Centre Hospitalier Universitaire De Saint Etienne
Department Name
Anesthésie et Réa B
Principal Investigator Name
Jérôme MOREL
Principal Investigator Email
jerome.morel@chu-st-etienne.fr
Contact Person Name
Jérôme MOREL
Contact Person Email
jerome.morel@chu-st-etienne.fr
Site Name
Centre Hospitalier Regional De Marseille
Department Name
Médecine intensive réanimation
Principal Investigator Name
Sami HRAIECH
Principal Investigator Email
sami.hraiech@ap-hm.fr
Contact Person Name
Sami HRAIECH
Contact Person Email
sami.hraiech@ap-hm.fr
Site Name
Centre Hospitalier Universitaire De Saint Etienne
Department Name
Médecine intensive Réa G
Principal Investigator Name
Sophie PERINEL RAGEY
Principal Investigator Email
sophie.perinel.ragey@univ-st-etienne.fr
Contact Person Name
Sophie PERINEL RAGEY

Sponsor

Primary sponsor

Full Name
Centre Hospitalier Universitaire De Saint Etienne
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
France

Investigational products

Investigational Product Name
CEFTAZIDIME (comparator record id 466752)
Active Substance
CEFTAZIDIME
Modality
Small molecule
Routes Of Administration
Intravenous
Route
Intravenous
Maximum Dose
6 g/day
Investigational Product Name
CEFTAZIDIME (test/modified regimen record id 466753)
Active Substance
CEFTAZIDIME
Modality
Small molecule
Routes Of Administration
Intravenous
Route
Intravenous
Starting Dose
Loading dose 4 g
Dose Levels
Loading dose 4 g; maintenance dosing: 8 g/day if GFR > 90 ml/min, 6 g/day if GFR 40–90 ml/min, 4 g/day if GFR 15–30 ml/min
Maximum Dose
Up to 8 g/day (per modified regimen description)
Dose Escalation Increase
Initial loading dose 4 g; maintenance doses as above depending on renal function

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