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APR-1051

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |Aprea Therapeutics, Inc.|Last Updated: Apr 23, 2026

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 Enrollment90
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06260514Study of APR-1051 in Patients With Advanced Solid TumorsPHASE1 RECRUITING 90Jun 13, 2024Jun 1, 2028Apr 23, 20263 United States
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Study Endpoints
Primary Endpoints
Treatment-related adverse events
Day 1 to 28, each cycle is 28 days

* Part 1 dose escalation: Incidence of adverse Events (AE), serious AEs (SAE), treatment-related AEs, AEs that would qualify as a dose-limiting toxicity (DLT), changes in clinical laboratory values, vital signs, ECG, ECHO * Part 1 dose escalation: Severity of adverse Events (AE), serious AEs (SAE), treatment-related AEs, and changes in clinical laboratory values, vital signs, ECG, ECHO according to National Cancer Institute Common Terminology Criteria for Adverse Events v5.0

Recommended dose of APR-1051
Day 1 to 28, each cycle is 28 days

•Part 1 dose escalation: Recommended Phase 2 Dose (RP2D) of APR-1051 monotherapy \[Time frame: Day 1 through to start of dose expansion phase\]. The RP2D of will be determined based on review of safety, tolerability, pharmacokinetics/pharmacodynamics, and preliminary efficacy data

Secondary Endpoints
Pharmacokinetics: Cmax/Cmin of APR-1051
Day 1 to 112
Pharmacokinetics: Tmax of APR-1051
Day 1 to 112
Pharmacokinetics: AUC of APR-1051
Day 1 to 112
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
APR-1051EXPERIMENTALDose Escalation based on BOIN Design
Interventions
NameTypeDescription
APR-1051DRUGWEE1 Inhibitor
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * Age ≥ 18 years * Diagnosis of advanced/metastatic solid tumor * Measurable or evaluable disease per RECIST version 1.1 (radiographic disease progression per PCWG3 criteria for patients with mCRPC) * Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1 or Karnofsky ...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06260514primaryCompletionDate: changed
LOWMay 24, 2026NCT06260514studyFirstPostDate: changed