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eltrombopag

Phase 3

Purpura, Thrombocytopenic, Idiopathic and Hepatitis C | Small molecule | Infectious Disease |Novartis AG|Last Updated: Dec 3, 2019

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-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment155
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01762761Eltrombopag Phase III Study In Chinese Chronic ITP PatientsPHASE3 COMPLETED 155Feb 18, 2013Nov 22, 2018Dec 3, 201918 China
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Study Endpoints
Primary Endpoints
Number of Participants (Responders) Achieving a Platelet Count >=50×10^9/L After the First 6 Weeks of Stage 1
From the start of study treatment (Day 1) up to the end of Week 6 of Stage 1

The number of participants (responders) with platelet count \>=50x10\^9/L after 6 weeks of Stage 1 were compared between treatments using a logistic regression model adjusted for use of primary immune thrombocytopenia (ITP) medication at Baseline (yes/no), splenectomy (yes/no), Baseline platelet count \<=15×10\^9/L (yes/no) and treatment. Complete blood count including platelet count was done at Week 1, Week 2, Week 3, Week 4, Week 5 and Week 6. Primary Analysis Data Set: a participant who withdrawals from Stage 1 or is emergently unblinded was classified as a negative response from the time of withdrawal or unblinding date and for all subsequent visits. In the event of a participant dying, information for all subsequent assessments would be considered missing. All intermittent missing data (apart from withdrawals) will be treated as missing.

Secondary Endpoints
Number of Participants Achieving a Platelet Count >=50×10^9/L at Least Once During the First 6 Weeks of Stage 1
From the start of study treatment (Day 1) up to the end of Week 6 of Stage 1
Number of Participants Achieving a Platelet Count >=30×10^9/L and at Least 2 Times the Baseline Platelet Count at Least Once During the 6 Weeks of Stage 1, the Whole Stage 2 and the Whole Stage 3
From the start of study treatment (Day 1) up to the end of Stage 3
Number of Participants With Bleeding as Assessed Using the World Health Organization (WHO) Bleeding Scale
From the start of study treatment (Day 1) up to the end of Stage 3
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Eltrombopag (ETB115)EXPERIMENTALThrombopoietin- receptor (TPO-R) agonist
PlaceboPLACEBO_COMPARATORPlacebo
Interventions
NameTypeDescription
eltrombopagDRUGTPO-R agonist
placeboDRUGplacebo
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites18

Inclusion Criteria: 1. Subject is ≥18 years old. 2. Diagnosed with ITP for at least 12 months prior to screening, and have a platelet count of \<30 X109/L on Day 1 (or within 48 hours prior to dosing on Day 1). 3. Patients who have no response or relapsed after splenectomy. Or patients who have not...

Countries:China
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