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Abemaciclib

Phase 2

CDK Gene Mutation | Small molecule | Oncology |Kazia Therapeutics Limited|Last Updated: Apr 13, 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
CONTROLLEDBiomarker
Total Trials1
Total Enrollment50
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03994796Genetic Testing in Guiding Treatment for Patients With Brain MetastasesPHASE2 ACTIVE NOT_RECRUITING 50Oct 17, 2019Jun 1, 2028Apr 13, 2026435 United States
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Study Endpoints
Primary Endpoints
Objective response rate in the brain
Up to 5 years

Assessed per Response Assessment in Neuro-Oncology (RANO) criteria for brain metastases. The response rate is defined as the number of patients who have achieved complete response (CR) or partial response (PR) per RANO for brain metastases criteria during treatment with CDK, PI3K, NTRK/ROS, or KRAS G12C inhibitors divided by total number of evaluable patients. The response rate and associated exact confidence interval will be estimated within each cohort defined by the targeted agent and histology.

Secondary Endpoints
Systemic response for extracranial disease
Up to 5 years
Clinical benefit rate for central nervous system (CNS)
Up to 5 years
Clinical benefit rate for extracranial disease
Up to 5 years
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm I (CDK gene mutation)EXPERIMENTALPatients receive abemaciclib PO BID on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Arm II (PI3K gene mutation)EXPERIMENTALPatients receive PI3K inhibitor paxalisib PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Arm III (NTRK/ROS1 gene mutation)EXPERIMENTALPatients receive entrectinib PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Arm IV (KRAS G12C mutation)EXPERIMENTALPatients receive adagrasib (MRTX849) PO BID on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Interventions
NameTypeDescription
AbemaciclibDRUGGiven PO
PI3K Inhibitor paxalisibDRUGGiven PO
EntrectinibDRUGGiven PO
AdagrasibDRUGGiven PO
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites435

Inclusion Criteria: PRE-REGISTRATION ELIGIBILITY CRITERIA (ALL PATIENTS) • Tissue available for biomarker testing (any brain metastasis tissue and extracranial site from any prior resection or biopsy). REGISTRATION ELIGIBILITY CRITERIA (ALL PATIENTS) * Participants must have histologically confir...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT03994796primaryCompletionDate: changed
LOWMay 24, 2026NCT03994796studyFirstPostDate: changed