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PRA023 Low Dose

Phase 1

Healthy | Small molecule | Other |Merck & Company, Inc.|Last Updated: Jan 17, 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
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment118
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05354349Bioavailability of SC Formulation and Japanese Ethnobridging Study for PRA023PHASE1 COMPLETED 49Apr 6, 2022Aug 31, 2022Jan 16, 20241 United States
NCT04676178A Study of PRA023 in Healthy VolunteersPHASE1 COMPLETED 69Dec 15, 2020Sep 23, 2021Jan 17, 20241 United States
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Study Endpoints
Primary Endpoints
Incidence, severity, causal relationship of treatment emergent adverse events
Up to 14 Weeks
F% in Caucasian subjects
Up to 10 Weeks

Mean SC versus IV AUC(inf) values

Cmax in Japanese subjects
Up to 14 Weeks

Maximum concentration after single dose

Tmax in Japanese subjects
Up to 14 Weeks

Time to reach maximum concentration after single dose

Treatment emergent adverse events
Up to 22 weeks

Incidence, severity, and causal relationship of TEAEs

Secondary Endpoints
Cmax in Caucasian subjects
Up to 10 Weeks
Tmax in Caucasian subjects
Up to 10 Weeks
Immunogenicity rate
Up to 14 Weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeBASIC_SCIENCE
Treatment Arms
ArmTypeDescription
PRA023 SC/Placebo IVEXPERIMENTALParticipants randomized to receive active subcutaneous injection/placebo intravenous infusion
Placebo SC/PRA023 IV Low DoseACTIVE_COMPARATORParticipants randomized to receive placebo subcutaneous injection/active intravenous infusion
Placebo SC/Placebo IVPLACEBO_COMPARATORParticipants randomized to receive placebo subcutaneous injection/placebo intravenous infusion
Placebo SC/PRA023 IV High DoseEXPERIMENTAL -
SAD Cohorts 1-6 Experimental ArmEXPERIMENTALSubjects will receive single intravenous doses of PRA023 in a dose escalation format
SAD Cohorts 1-6 Placebo ArmPLACEBO_COMPARATORSubjects will receive intravenous doses of placebo
MAD Cohorts 1-5 Experimental ArmEXPERIMENTALSubjects will receive three intravenous doses of PRA023, one dose every 2 weeks, in a dose escalation format
MAD Cohorts 1-5 Placebo ArmPLACEBO_COMPARATORSubjects will receive three intravenous doses of placebo, one dose every 2 weeks,
Interventions
NameTypeDescription
PRA023 IV Low DoseDRUGDrug
PRA023 SCDRUGDrug
Placebo IVDRUGPlacebo
Placebo SCDRUGPlacebo
PRA023 IV High DoseDRUGDrug
PRA023DRUGPRA023
PlaceboOTHERPlacebo
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subjects are required to meet the following criteria in order to be included in the study: 1. Japanese subjects must have both natural (not adopted) parents and four grandparents of Japanese origin. 2. Caucasian subjects must be of European or Latin American descent (i.e....

Countries:United States
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