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luspatercept

Phase 2

β-Thalassemia | Small molecule | Hematology |Merck & Company, Inc.|Last Updated: Jul 18, 2024

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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment51
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02268409Extension Study to Evaluate the Safety and Efficacy of Luspatercept in Participants With β-Thalassemia Previously Enrolled in A536-04 (A536-06/MK-6143-004)PHASE2 COMPLETED 51Oct 20, 2014Jun 18, 2020Jul 18, 20247 Greece, Italy
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Study Endpoints
Primary Endpoints
Number of Participants Who Experienced an Adverse Event (AE)
Up to approximately 68 months

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered a study drug, which did not necessarily have a causal relationship with the treatment. An AE could therefore have been any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of the study drug whether or not it was considered related to the study drug. The number of participants who experienced an AE is reported.

Number of Participants Who Discontinued Study Treatment Due To an AE
Up to approximately 60 months

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered a study drug, which did not necessarily have a causal relationship with the treatment. An AE could therefore have been any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of the study drug whether or not it was considered related to the study drug. The number of participants who discontinued study treatment due to an AE is reported.

Secondary Endpoints
Percentage of Non-transfusion Dependent (NTD) Participants With a Hemoglobin Increase of ≥1.0 g/dL From Baseline Over a Rolling 8-week Interval
Any 8-week interval during the study (up to approximately 68 months)
Percentage of Non-transfusion Dependent (NTD) Participants With a Hemoglobin Increase of ≥1.0 g/dL From Baseline Over a Rolling 12-week Interval
Any 12-week interval during the study (up to approximately 68 months)
Percentage of Non-transfusion Dependent (NTD) Participants With a Hemoglobin Increase of ≥1.0 g/dL From Baseline During Weeks 13 to 24
Weeks 13 to 24
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Luspatercept Extension PopulationEXPERIMENTALParticipants receive luspatercept 0.6, 0.8, 1.0, or 1.25 mg/kg administered by subcutaneous injection on Day 1 of each 21-day cycle for up to 87 cycles (up to approximately 5 years). Participants will receive the highest tolerated dose level of luspatercept that they were assigned in the base study unless a dose modification was required.
Interventions
NameTypeDescription
luspaterceptDRUGsubcutaneous injection
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites7

The main inclusion and exclusion criteria include but are not limited to the following: Inclusion Criteria: * Completion of the treatment period in the base study A536-04. * Females of child- bearing potential (defined as sexually mature women who have not undergone hysterectomy or bilateral oopho...

Countries:GreeceItaly
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