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Tygacil

Phase 2

Bacterial Infections | Small molecule | Infectious Disease |Pfizer, Inc.|Last Updated: Oct 24, 2012

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment59
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00488345Study Evaluating the Pharmacokinetics (PK), Safety, and Tolerability of Tigecycline in Patients 8 to 11 Years of AgePHASE2 COMPLETED 59Dec 1, 2007Sep 1, 2009Oct 24, 201236 United States, Belgium +4
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Study Endpoints
Primary Endpoints
Maximum Observed Plasma Concentration (Cmax)
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)
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
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)
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
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 Endpoints
Population Pharmacokinetic (PK) Model: Volume of Distribution
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
Population Pharmacokinetic (PK) Model: Clearance
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
Population Pharmacokinetic (PK) Model: Effect of Weight
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
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
AEXPERIMENTAL0.75 mg/kg (up to a maximum dose of 50 mg for each dose) of tigecycline every 12 hours infused over approximately 30 minutes. Escalation to next dose cohort will occur only after safety and tolerability at preceding dose have been established by sponsor (after tigecycline LDOT data are received) and if at least 5 of 6 PK samples per patient have been received by central laboratory in acceptable condition for 10 to 12 patients in cohort. Treatment period of tigecycline will be a minimum of 3 days (unless patient is considered a treatment failure before this time) and a maximum of 14 days. On or after Day 4, based on investigator's decision, patients can switch to oral antibiotic therapy (to be chosen and provided by the investigator) and discharged after collection of planned PK samples.
BEXPERIMENTAL1 mg/kg (up to a maximum dose of 50 mg for each dose) of tigecycline every 12 hours infused over approximately 30 minutes. Escalation to next dose cohort will occur only after safety and tolerability at preceding dose have been established by sponsor (after tigecycline LDOT data are received) and if at least 5 of 6 PK samples per patient have been received by the central laboratory in acceptable condition for 10 to 12 patients in the cohort. Treatment period of tigecycline will be a minimum of 3 days (unless the patient is considered a treatment failure before this time) and a maximum of 14 days. On or after Day 4, based on investigator's decision, patients can switch to oral antibiotic therapy (to be chosen and provided by the investigator) and discharged after collection of planned PK samples.
CEXPERIMENTAL1.25 mg/kg (up to maximum dose of 50 mg for each dose) of tigecycline every 12 hours infused over approximately 30 minutes. Treatment period of tigecycline will be a minimum of 3 days (unless patient is considered a treatment failure before this time) and a maximum of 14 days. On or after Day 4, based on investigator's decision, patients can switch to oral antibiotic therapy (to be chosen and provided by the investigator) and discharged after collection of planned PK samples.
Interventions
NameTypeDescription
TygacilDRUG -
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Eligibility Criteria
Age Range8 Years — 11 Years
SexALL
Healthy VolunteersNo
Study Sites36

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 ...

Countries:United StatesBelgiumMexicoSouth AfricaTaiwanUkraine
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