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OBI-1

Phase 2

Acquired Hemophilia A | Monoclonal antibody | Hematology |Takeda Pharmaceutical Company Limited|Last Updated: May 13, 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
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment29
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01178294Study of Modified Recombinant Factor VIII (OBI-1) in Subjects With Acquired Hemophilia APHASE2 COMPLETED 29Nov 10, 2010Oct 9, 2013May 13, 202112 United States, Canada +2
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Study Endpoints
Primary Endpoints
Percentage of Serious Bleeding Episodes Responsive to OBI-1
24 hours after initiation of treatment

The initial serious ("qualifying") bleeding episode for each subject was analyzed for the primary efficacy outcome measure. A 'positive response' is defined as 'effective' (bleeding stopped with clinical control and FVIII levels of 50% or higher ) or 'partially effective' (bleeding reduced with clinical stabilization and FVIII levels of 20% or higher) control of bleeding, as determined by the investigator using a 4-point rating scale (effective - partially effective - poorly effective - not effective). 'Poorly effective' is defined as 'bleeding slightly reduced or unchanged and FVIII levels of less than 50%'. 'Not effective' is defined as 'bleeding worsening and FVIII levels of less than 50%'.

Secondary Endpoints
Overall Percentage of Serious Bleeding Episodes Successfully Controlled With OBI-1 Therapy, as Assessed by the Investigator
At the time of final treatment dosing (varied from participant to participant depending on bleeding episodes)
Percentage of Serious Bleeding Episodes Responsive to OBI-1 Therapy at Designated Assessment Time Points After the Initiation of Therapy, as Assessed by the Investigator
8 hours
Frequency of Infusions of OBI-1 Required to Successfully Control Qualifying Bleeding Episodes
Time of successful control of qualifying bleeding episode (varied from participant to participant)
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
OBI-1EXPERIMENTALInitial dose: 200 U/kg - additional doses at the discretion of the investigator based on FVIII activity level and clinical assessment of response to treatment (upper limit: 400 U/kg every 2 hours)
Interventions
NameTypeDescription
OBI-1BIOLOGICALIntravenous infusion
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion Criteria: * Written informed consent from subject, trusted person or person who is legally authorized to sign on behalf of the participant (Legal Representative in U.S.), depending on local regulations * Participants with acquired hemophilia with autoimmune inhibitory antibodies to human ...

Countries:United StatesCanadaIndiaUnited Kingdom
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