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CTX-009

Phase 1

Glioblastoma | Small molecule | Oncology |COMPASS Pathways Plc - American Depository Shares|Last Updated: Mar 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
RandomizedCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment54
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07392957Safety and Efficacy of CTX-009 With or Without CTX-471 for Recurrent GlioblastomaPHASE1 NOT YET_RECRUITING 54Apr 30, 2026Apr 30, 2031Mar 23, 20261 United States
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Study Endpoints
Primary Endpoints
Phase IB Arm 1: Toxicity as measured by number of participants with adverse events
Start of treatment through 60 days after treatment (estimated to be 14 months)

Adverse events will be graded according to CTCAE v5.0

Phase IB Arm 1: Recommended Phase 2 Dose (RP2D)
Start of treatment through completion of cycle 1 (each cycle is 28 days)

RP2D will be determined from the phase IB portion of Arm 1 by assessing tolerability. Tolerability is defined as ≤1 among patients experiencing excessive dose limiting toxicities (DLTs). The dose level in phase IB determined to be tolerable is the RP2D.

Phase IB Arm 2: Toxicity as measured by number of participants with adverse events
Start of treatment through 60 days after treatment (estimated to be 14 months)

Adverse events will be graded according to CTCAE v5.0

Phase II Arm 1: Overall survival rate at 12 months (OS12)
12 months

Overall survival is defined from time of treatment start to time of death due to any cause or latest follow-up, whichever is earlier, with an inference focus on 12-month overall survival.

Phase II Arm 2: Overall survival rate at 12 months (OS12)
12 months

Overall survival is defined from time of treatment start to time of death due to any cause or latest follow-up, whichever is earlier, with an inference focus on 12-month overall survival.

Secondary Endpoints
Overall response rate (ORR)
Start of treatment to end of treatment (estimated total time to be 12 months)
Duration of response (DoR)
Start of treatment to disease progression/recurrence (estimated total time to be 36 months)
Median progression-free survival (mPFS)
Start of treatment to disease progression (estimated to be 36 months)
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Phase IB Arm 1: CTX-009 monotherapyEXPERIMENTALCTX-009 will be given intravenously at the assigned dose level on an outpatient basis every 2 weeks of a 28-day cycle.
Phase IB Arm 2: CTX-009 and CTX-471 combination therapyEXPERIMENTALCTX-009 will be given intravenously at the dose determined to be the recommended phase II dose (RP2D) in Arm 1 every 2 weeks, and CTX-471 will be given intravenously at a dose of 0.3 mg/kg every 2 weeks (day 1 and day 15). On days when both drugs are given, CTX-009 will be given first, followed by a 30-minute observation period, followed by CTX-471. Cycles will be 28 days.
Phase II Expansion Arm 1: CTX-009 monotherapyEXPERIMENTALCTX-009 will be given intravenously at the recommended phase 2 dose (RP2D) determined from Phase IB on an outpatient basis every 2 weeks of a 28-day cycle.
Phase II Expansion Arm 2: CTX-009 and CTX-471 combination therapyEXPERIMENTALCTX-009 will be given intravenously at the dose determined to be the recommended phase II dose (RP2D) every 2 weeks (day 1 and day 15). CTX-471 will be given intravenously at a dose of 0.3 mg/kg every 2 weeks (day 1 and day 15). On days when both drugs are given, CTX-009 will be given first, followed by a 30-minute observation period, followed by CTX-471. Cycles will be 28 days.
Interventions
NameTypeDescription
CTX-009DRUGCTX-009 will be given intravenously over the course of 60 minutes (+/- 5 minutes) on an outpatient basis every 2 weeks of a 28-day cycle.
CTX-471DRUGCTX-471 will be given intravenously over the course of 30 minutes (-5/+10) on an outpatient basis every 2 weeks of a 28-day cycle.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Histologically or radiographically confirmed recurrent CNS WHO grade 4 IDH wild-type glioma following standard of care treatment including radiation, chemotherapy, and/or tumor-treating fields. No more than 2 recurrences are allowed. * At least 18 years of age. * KPS performan...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT07392957studyFirstPostDate: changed