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GDC-0084

Phase 1

Brain Metastases | Small molecule | Other |Kazia Therapeutics Limited|Last Updated: Apr 22, 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 Enrollment21
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04192981GDC-0084 With Radiation Therapy for People With PIK3CA-Mutated Solid Tumor Brain Metastases or Leptomeningeal MetastasesPHASE1 ACTIVE NOT_RECRUITING 21Dec 6, 2019Dec 1, 2026Apr 22, 20269 United States
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Study Endpoints
Primary Endpoints
maximum tolerated dose (MTD)
1 year

Four dose levels will be examined and the maximum tolerated dose (MTD) will be identified. The standard 3+3 dose-escalation scheme for this study is as follows. Patients will be accrued to the study in cohorts of 3. For any given dose an initial cohort of 3 patients will be treated at that dose.The dose level will be escalated if none of the 3 exhibits any dose limiting toxicity (DLT).

Secondary Endpoints
local recurrence rate
1 year
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Concurrent GDC-0084 with RadiationEXPERIMENTALGDC-0084 in 3 + 3 dose-escalation in 3 cohorts: 45, 60, 75 mg daily, with a potential de-escalation cohort to 30mg, to determine MTD in combination with whole brain radiation therapy radiation therapy to 30Gy in 10 fractions. Once MTD is determined, 12 additional patients will be treated with GDC-0084 at MTD in combination with whole brain radiation therapy.
Interventions
NameTypeDescription
GDC-0084DRUGGDC-0084 in 3 + 3 dose-escalation in 3 cohorts: 45, 60, 75 mg daily
whole brain radiation therapy radiationRADIATION30Gy in 10 fractions
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites9

Inclusion Criteria: * Histologically confirmed solid tumor malignancies harboring PIK3CA mutations which include mutations in any of the following genes: PIK3CA, PIK3CB, PIK3CD, PIK3CG, PIK3R1, PIK3R2, PIK3R3, PIK3C2G, PIK3C3, INPP4A, INPP4B, INPPL1, INPP5D, PTEN, AKT1, AKT2, AKT3, and MTOR. * Brai...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04192981primaryCompletionDate: changed
LOWMay 24, 2026NCT04192981studyFirstPostDate: changed