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BAX326

Phase 3

Hemophilia B | Monoclonal antibody | Hematology |Takeda Pharmaceutical Company Limited|Last Updated: May 20, 2021

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
RandomizedDouble-BlindCONTROLLEDDMC
Total Trials3
Total Enrollment226
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01286779BAX 326 (rFIX) Continuation StudyPHASE3 COMPLETED 117Apr 12, 2011Jun 29, 2017May 20, 202142 Argentina, Brazil +15
NCT01174446Pivotal Study (Pharmacokinetics, Efficacy, Safety) of BAX 326 (rFIX) in Hemophilia B PatientsPHASE3 COMPLETED 86Jul 29, 2010May 3, 2012May 20, 202125 Argentina, Brazil +12
NCT01488994BAX 326 Pediatric StudyPHASE2 COMPLETED 23Dec 20, 2011May 14, 2013May 20, 202111 India, Poland +4
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Study Endpoints
Primary Endpoints
Adverse Events Possibly or Probably Related to the Investigational Product
Assessed (based on patient diary) every 3 months until study completion (when BAX326 is licensed in the respective country or the participant has accumulated approximately 100 exposure days to BAX 326, whichever is last).

Possibly or probably related adverse events that occurred during or after first BAX326 infusion.

Study Part 1- Area Under the Plasma Concentration Versus Time Curve From 0 to 72 Hours Per Dose
72 hours

Computed using the linear trapezoidal method. The concentration at 72 hours was interpolated from the two nearest sampling time points or extrapolated using the last quantifiable concentration and the terminal rate constant λz. λz was estimated from the slope of natural log-linear fitting to latter quantifiable concentrations, with largest adjusted R\^2.

Adverse Events (AEs) Possibly or Probably Related to BAX326
Throughout study period (approximately 17 months)
Secondary Endpoints
Treatment of Bleeding Episodes: Number of Infusions Per Bleeding Episode Required Until Bleed Resolution
Throughout the study from screening to study completion (when BAX326 is licensed in the respective country or the participant has accumulated approximately 100 exposure days to BAX 326, whichever is last).
Treatment of Bleeding Episodes: Overall Hemostatic Efficacy Rating at Resolution of Bleed
Throughout the study from screening to study completion (when BAX326 is licensed in the respective country or the participant has accumulated approximately 100 exposure days to BAX 326, whichever is last).
Annualized Bleed Rate During Prophylaxis Treatment
For prophylactic treatment the period from first to last prophylactic infusion is considered.
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
BAX 326EXPERIMENTAL -
BeneFIXACTIVE_COMPARATORRecombinant Factor IX (rFIX)
BAX326 < 6 years of ageEXPERIMENTAL -
BAX326 6 to <12 years of ageEXPERIMENTAL -
Interventions
NameTypeDescription
BAX 326 (Recombinant factor IX)BIOLOGICALThe treatment with BAX 326 will be at the discretion of the investigator and will consist of either twice weekly prophylactic treatment with 50 IU/kg, modified prophylaxis, or on-demand treatment.
BAX 326BIOLOGICAL* Study Part 1: Pharmacokinetic (PK) Crossover with BAX326 and BeneFIX * Study Part 2: Open-label evaluation of prophylaxis and on-demand BAX326 only * Study Part 3: Open-label repeat of PK evaluation (repeat Study Part 1) with BAX326 only and same study participants as Study Part 1
BeneFIXBIOLOGICAL* Study Part 1: Pharmacokinetic (PK) Crossover with BAX326 and BeneFIX. * BeneFIX only used in Part 1 of this study. * Study Part 2 and 3 only utilized BAX326
BAX326BIOLOGICALAll participants underwent a pharmacokinetic evaluation with BAX326 (recombinant Factor IX) followed by twice weekly prophylactic treatment for 6 months or for at least 50 exposure days, whichever occurred last.
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Eligibility Criteria
Age RangeN/A — 65 Years
SexALL
Healthy VolunteersNo
Study Sites42

Main Inclusion Criteria: * Subject and/or legal representative has/have voluntarily provided signed informed consent * Subject has completed Baxter clinical study 250901 (pivotal study) or Baxter clinical study 251101 (pediatric study) * Subject was 12 to 65 years old at the time of screening for S...

Countries:ArgentinaBrazilBulgariaChileColombiaCzechiaIndiaIrelandItalyJapanPolandRomaniaRussiaSwedenTaiwanUkraineUnited KingdomSpain
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