Recent Updates
Recently added Catalysts

SB-497115-GR

Phase 3

Chronic Idiopathic Thrombocytopenic Purpura | Small molecule | Other |GSK plc|Last Updated: Mar 30, 2011

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment23
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00540423Clinical Evaluation of SB-497115-GR in Chronic Idiopathic Thrombocytopenic Purpura (ITP)PHASE3 COMPLETED 23Sep 1, 2007Dec 1, 2008Mar 30, 20117 Japan
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Number of Responders at Week 6
Week 6

A responder was defined as a participant with a platelet count within the target range (\>=50 x 10\^9/Liter and \<=400 x 10\^9/Liter).

Percentage of Participants for Whom at Least 75% of Their Assessments During the Course of 26 Weeks of SB-497115-GR Treatment Met the Definition of Responders
Week 26

A responder was defined as a participant with a platelet count within the target range (\>=50 x 10\^9/Liter and \<=400 x 10\^9/Liter). Participants receiving placebo in the double-blind phase received SB-497115-GR in the open-label phase for up to 26 weeks. Participants receiving SB-497115-GR in the double-blind phase for 7 weeks continued to receive SB-497115-GR in the open-label phase for 19 weeks. The data from these two groups were pooled as a 26 week treatment of SB-497115-GR group and analyzed for the efficacy and safety.

Secondary Endpoints
Number of Participants Assessed as Responders in at Least 4 Assessments Between Weeks 2 and 6
Weeks 2 through 6
Percentage of Responders at Each Visit
Days 8, 15, 22, 29, 36, and 43
Mean Platelet Count at Each Visit
Baseline and Days 8, 15, 22, 29, 36, and 43
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
SB-497115-GR groupEXPERIMENTALSubject will initiate treatment with SB-497115-GR 12.5mg once a day. Based on the subjects platelet count at each visit, the dose of SB-497115-GR may be adjusted at 12.5mg, 25mg or 50mg.
placebo groupPLACEBO_COMPARATORSubject will initiate treatment with SB-497115-GR 12.5mg matching placebo once a day. Based on the subjects platelet count at each visit, the dose of SB-497115-GR 12.5mg matching placebo may be increased to 2 tablet of SB-497115-GR 12.5mg matching placebo.
Interventions
NameTypeDescription
SB-497115-GR 12.5mgDRUGSB-497115-GR 12.5mg tablet once a day
SB-497115-GR 25mgDRUGSB-497115-GR 25mg tablet once a day
SB-497115-GR 12.5mg matching placeboDRUGSB-497115-GR 12.5mg matching placebo x1 or 2 tablet once a day
SB-497115-GR 50 mgDRUGSB-497115-GR 25mg tablet x2 once a day
Unlock Study Design Details
Eligibility Criteria
Age Range20 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion criteria: Subjects eligible for enrollment in the study must meet all of the following criteria. At Screening (Week -4 or -3) * Diagnosed with ITP for at least 6 months prior to screening. * Have a platelet count of \<30,000/µL. * Previously treated refractory or relapsed patients who h...

Countries:Japan
Unlock Eligibility Criteria