NCT Number: NCT00488345
Study Evaluating the Pharmacokinetics (PK), Safety, and Tolerability of Tigecycline in Patients 8 to 11 Years of Age
To determine the pharmacokinetic profile and to evaluate the safety and tolerability of ascending multiple doses of tigecycline in patients aged 8 to 11 years with selected serious infections; complicated intra-abdominal infections (cIAI), complicated skin and skin structure infections (cSSSI), or community-acquired pneumonia (CAP).
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Conditions
Age range
8 year–11 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Phase 2
Primary location
Brussels, Belgium
Who can participate
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- Male or female patients aged 8 to 11 years, inclusive, willing and able to complete all activities required for the study
- Have a diagnosis of a serious infection (cIAI, cSSSI or CAP) requiring hospitalization and administration of IV antibiotic therapy during greater than or equal to 5 days
- Other inclusion criteria apply.
Exclusion criteria
- Patients with any concomitant condition or taking any concomitant medication that, in the opinion of the investigator, could preclude an evaluation of safety or efficacy responses or make it unlikely that the anticipated course of therapy or follow-up assessment will be completed (e.g., life expectancy < 30 days).
- Pregnant or breastfeeding female patients and female patients of childbearing potential who are unable or unwilling to take adequate contraceptive precautions.
- Previous participation in this clinical trial.
- Receipt of any investigational drugs or devices (defined as lacking any regulatory agency's approval within 4 weeks before administration of the first dose of tigecycline).
- Endocarditis; presence of an artificial heart valve or infected device that will not be removed.
- Known or suspected hypersensitivity to tigecycline or other compounds related to this class of antibacterial agents (i.e., tetracyclines).
- Known or suspected P. aeruginosa infection.
- Patients receiving immunosuppressive therapy that, in the opinion of the investigator, would decrease the patient's ability to eradicate the infection, including the use of high-dose corticosteroid.
- Receipt of an organ or bone marrow transplant.
- Presence of any of the following laboratory findings: Neutropenia (absolute neutrophil count < 1 × 109/L [< 1000/mm3]) , AST or ALT > 10 × the ULN or bilirubin > 3 × ULN, unless isolated hyperbilirubinemia is directly related to the acute process (for patients with cIAI).
- Patients with any of the following conditions:
- Cystic fibrosis.
- Active tuberculosis.
- Congenital immunodeficiency.
- Meningitis.
- Septic shock.
- Osteomyelitis (suspected or evident).
- Refractory shock syndrome in which hemodynamic parameters cannot be maintained despite adequate supportive therapy.
- Confirmed malignancy with patient receiving an active course of chemotherapeutic agents.
- Known or suspected infection with human immunodeficiency virus (HIV) or positive test result for HIV antibody.
- Known or suspected concomitant bacterial or parasitic infection requiring systemic treatment.
- cSSSI patients, the presence of decubitus ulcers, necrotizing fasciitis, gas gangrene, or skeletal infection;
- CAP patients who have been hospitalized within 14 days before the onset of symptoms;
- CAP Patients: Presence of any of the following for patients with pneumonia:
- Postobstructive pneumonia.
- Pulmonary abscess.
- Empyema.
- Known or suspected pulmonary infection with Pneumocystis carinii.
Treatment and study plan
Primary outcomes
-
Maximum Observed Plasma Concentration (Cmax)
Time frame: Day 3 (immediately post-dose, 0.75, and 2 hours post-dose)
Cmax: tigecycline serum concentration measured in nanograms per milliliter (ng/mL) determined by a validated liquid chromatography with mass spectrophotometric (LC/MS/MS) detection method. Peak concentration was taken directly from the observed data.
-
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: Day 3 (immediately post-dose, 0.75, and 2 hours post-dose)
Time of peak concentration taken directly from the observed data.
-
Area Under the Curve (AUCτ) From Time Zero to Time of Estimated Concentration at 12 Hours
Time frame: Day 3 (just before and immediately after infusion, and 0.75, 2, and 6 hours post-dose)
AUCτ: AUC between doses from time zero to the time of estimated concentration at 12 hours reported in nanograms * hours divided by milliliters (ng*h/mL) was calculated using the log-trapezoidal rule for decreasing concentrations and the linear-trapezoidal rule for increasing concentrations estimating the 12 hour drug concentration if necessary.
-
Weight Normalized Drug Clearance (CLW)
Time frame: Day 3 (just before and immediately after infusion, and 0.75, 2, and 6 hours post-dose)
Weight normalized drug clearance measured in liters per hour per kilogram (L/hr/kg). Drug clearance (CL) was determined as the ratio of dose/area under the concentration-time curve from time zero (start of infusion) to 12 hours (start of next infusion) (AUCτ). CLW was determined as the ratio of CL/weight.
-
Percentage of Participants With Clinical Response (CR) to Tigecycline at Last Day of Therapy (LDOT) and Test-of-Cure (TOC) Assessment
Time frame: Day 14 or LDOT, TOC Visit (10 to 21 days after last dose of total antibiotic therapy)
CR = Cure: resolution of all signs, symptoms (SS) of infection (INF) or improvement, no further antibacterial therapy (AT) necessary; Improved (IMP): SS IMP to extent that switch to oral AT deemed appropriate; Failure: lack of response, required additional AT, initial recovery then deterioration requiring further AT, death due to the INF after day 2, death due to treatment (TR)-related adverse event (AE), required non-routine surgical TR >48 hours after 1st dose of TR due to failure to IMP or clinical worsening. TOC = CR, vital signs, physical exam, laboratory results, concomitant TR, and AEs.
Secondary outcomes
-
Population Pharmacokinetic (PK) Model: Volume of Distribution
Time frame: 3074K4-2207: Day 3 just before and immediately after infusion, and 0.75, 2, and 6 hours post-dose; 3074A1-110: just before and 0.5, 0.75, 1, 2, 3, 4, 8, 12, 24, 36, and 48 hours after start of infusion
Two compartment model with linear clearance and effect of weight on clearance using pooled PK data from 2 pediatric studies. All concentration-time data were combined and analyzed using population PK methods to investigate potential influence of age, weight, and height (dose, tigecycline concentrations, times, subject weight, height, age, body surface area, serum creatinine, estimated creatinine clearance, serum bilirubin.
-
Population Pharmacokinetic (PK) Model: Clearance
Time frame: 3074K4-2207: Day 3 just before and immediately after infusion, and 0.75, 2, and 6 hours post-dose; 3074A1-110: just before and 0.5, 0.75, 1, 2, 3, 4, 8, 12, 24, 36, and 48 hours after start of infusion
Two compartment model with linear clearance and effect of weight on clearance using pooled PK data from 2 pediatric studies. All concentration-time data were combined and analyzed using population PK methods to investigate potential influence of age, weight, and height (dose, tigecycline concentrations, times, subject weight, height, age, body surface area, serum creatinine, estimated creatinine clearance, serum bilirubin.
-
Population Pharmacokinetic (PK) Model: Effect of Weight
Time frame: 3074K4-2207: Day 3 just before and immediately after infusion, and 0.75, 2, and 6 hours post-dose; 3074A1-110: just before and 0.5, 0.75, 1, 2, 3, 4, 8, 12, 24, 36, and 48 hours after start of infusion
Two compartment model with linear clearance and effect of weight on clearance using pooled PK data from 2 pediatric studies. All concentration-time data were combined and analyzed using population PK methods to investigate potential influence of age, weight, and height (dose, tigecycline concentrations, times, subject weight, height, age, body surface area, serum creatinine, estimated creatinine clearance, serum bilirubin.
Sponsors and collaborators
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Registry information
Official study title
A Multicenter, Open-Label, Ascending Multiple-Dose Study to Assess the Pharmacokinetics, Safety, and Tolerability of Tigecycline in Patients 8 to 11 Years of Age With Selected Serious Infections
Important dates
- Study start
- 2007
- Primary completion
- 2009
- Study completion
- 2009
- First posted
- Jun 20, 2007
- Registry last updated
- Oct 24, 2012
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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