- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT07585487
Paracetamol and Cefazolin Pharmacokinetics in Normal Weight and Overweight Children (TISSUE)
Pharmacokinetic evaluations will be conducted to characterize the cefazolin plasma concentration-time profile, cefazolin penetration into subcutaneous adipose tissue, and paracetamol metabolization as assessed through blood sampling. The study population consists of children aged 2 to 15 years with either normal weight or overweight. All participants are admitted for a minor elective surgical procedure and will receive paracetamol and/or cefazolin as part of standard perioperative care.
During the procedure, multiple blood and tissue-fluid samples will be collected to quantify paracetamol and cefazolin concentrations in the bloodstream, as well as cefazolin concentrations in subcutaneous adipose tissue. The study aims to characterize drug concentration-time profiles in blood (paracetamol), plasma (cefazolin), and adipose tissue (cefazolin), and to compare these pharmacokinetic parameters between normal-weight and overweight children.
These data are essential to determine whether standard dosing regimens provide adequate drug exposure across different weight categories. Previous research indicates that achieving specific target concentrations in blood and tissue is necessary for optimal therapeutic effect, yet uncertainty remains regarding appropriate dosing in overweight children.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studiekontakt
- Namn: Pieter De Cock, Prof. Apr
- Telefonnummer: +32 9 332 29 69
- E-post: pieter.decock@uzgent.be
Studera Kontakt Backup
- Namn: Annemie Bauters, MD.
- Telefonnummer: + 32 9 332 18 83
- E-post: Annemie.Bauters@UGent.be
Studieorter
-
-
-
Ghent, Belgien, 9000
- Rekrytering
- Ghent University Hospital, Ghent
-
Kontakt:
- Anca Amza
- Telefonnummer: +32 9 332 18 83
- E-post: anca.amza@uzgent.be
-
Huvudutredare:
- Pieter De Cock, Prof. Apr.
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Barn
Tar emot friska volontärer
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Patient admitted to the operating room for minor elective surgery
- Patients undergoing general anesthesia for minor elective surgery
- Patient age: children from 2 years to 15 years
- Patients receiving cefazolin or paracetamol according to the standard procedure
- Intra-arterial (preferred) or intravenous access available for blood sampling
- BMI
Exclusion Criteria:
- Personal or family history of excessive bleeding
- Pre-existing coagulopathy and/or thrombocytopenia
- No catheter available for blood sampling
- Absence of parental consent
- Known allergy to one of the components of the study
- Pregnancy
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
Intervention / Behandling |
|---|---|
|
Standard of Care Paracetamol or Cefazolin treatment in children with normal weight
|
Prophylactic Cefazolin treatment per standard-of-care
Andra namn:
Preoperative dose of paracetamol, as per standard-of-care
Andra namn:
|
|
Standard of Care Paracetamol or Cefazolin treatment in children with overweight
|
Prophylactic Cefazolin treatment per standard-of-care
Andra namn:
Preoperative dose of paracetamol, as per standard-of-care
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Blood concentrations of paracetamol and its metabolites
Tidsram: Blood VAMS samples collected at day0 (D0): 1) before infusion(D0): predose , 2) 5 minutes after infusion (D0), 3) 5-120 minutes after infusion (D0): distribution phase, 4) 2 hours after infusion (D0), 5) 3-5 hours after infusion (D0): elimination phase
|
Blood concentrations (mg/L) of paracetamol and its metabolites: glucuronide-, sulfate-, cysteine- and mercapturate-conjugates after a single intravenous perfusion of paracetamol.
Samples collected with Volumetric Absorptive Microsampling (VAMS).
|
Blood VAMS samples collected at day0 (D0): 1) before infusion(D0): predose , 2) 5 minutes after infusion (D0), 3) 5-120 minutes after infusion (D0): distribution phase, 4) 2 hours after infusion (D0), 5) 3-5 hours after infusion (D0): elimination phase
|
|
Cefazolin plasma and tissue concentrations
Tidsram: At D0 sampled: Plasma: 1) predose, 2) 5 minutes after infusion, 3) 5-120 minutes, 4) 2 hours, 5) 3-5 hours; Microdialysis: 1) baseline (-30 - 0 minutes), 2) first 2 hours after dosing (every 30 minutes a sample), 3) next 3 hours (every 1 hour a sample)
|
Plasma concentrations (mg/L) are stored in heparine blood tubes.
Tissue concentrations (mg/L) are collected with a microdialysis device and stored in specific microdialysis vials.
|
At D0 sampled: Plasma: 1) predose, 2) 5 minutes after infusion, 3) 5-120 minutes, 4) 2 hours, 5) 3-5 hours; Microdialysis: 1) baseline (-30 - 0 minutes), 2) first 2 hours after dosing (every 30 minutes a sample), 3) next 3 hours (every 1 hour a sample)
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Biomarkers values: enzymes
Tidsram: Blood was collected togheter with blood sample 4 for cefazolin concentrations, 2 hours after drug administration on day0 (D0)
|
Determination of the presence and concentration of enzymes based on the values Aspartate aminotransferase (AST; U/L), Alanine aminotransferase (ALT; U/L), and Gamma-Glutamyl transpeptidase (GGT; U/L).
|
Blood was collected togheter with blood sample 4 for cefazolin concentrations, 2 hours after drug administration on day0 (D0)
|
|
Biomarker values: proteins
Tidsram: Blood was collected togheter with blood sample 4 for cefazolin concentrations, 2 hours after drug administration on day0 (D0)
|
Determination of the presence and concentration of proteins based on the values Bilirubin (total & direct; g/L), serum creatinine (SCR; g/L), total protein (g/L), Albumin (g/L), and C-reactive protein (CRP; g/L).
|
Blood was collected togheter with blood sample 4 for cefazolin concentrations, 2 hours after drug administration on day0 (D0)
|
Samarbetspartners och utredare
Sponsor
Utredare
- Studierektor: Anca Amza, Ghent University Hospital and Ghent Univeristy
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
- Näringsstörningar
- Övernäring
- Kroppsvikt
- Patologiska tillstånd, tecken och symtom
- Närings- och metabola sjukdomar
- Tecken och symtom
- Övervikt
- Svavelföreningar
- Organiska kemikalier
- Heterocykliska föreningar
- Heterocykliska föreningar, 2-ring
- Heterocykliska föreningar, smältring
- Anilider
- Amider
- Anilinföreningar
- Aminer
- Acetanilider
- beta-laktamer
- Laktam
- Cephalosporiner
- Tiaziner
- Acetaminophen
- Cefazolin
- Farmaceutiska förberedelser
Andra studie-ID-nummer
- ONZ-2023-0432
Läkemedels- och apparatinformation, studiedokument
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