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Zanzalintinib

Phase 2

Head and Neck Squamous Cell Carcinoma | Small molecule | Oncology |Exelixis, Inc.|Last Updated: Aug 17, 2025

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 Trials1
Total Enrollment600
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06082167Study of Zanzalintinib (XL092) + Pembrolizumab vs Pembrolizumab in Subjects With PD-L1 Positive Recurrent or Metastatic Head and Neck Squamous Cell CarcinomaPHASE2 ACTIVE NOT_RECRUITING 600Jun 7, 2024Mar 1, 2029Aug 17, 2025168 United States, Argentina +24
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Study Endpoints
Primary Endpoints
Progression-Free Survival (PFS) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) by Blinded Independent Central Review (BICR)
Approximately 33 months after the first subject is randomized

Defined as the time from randomization to the earlier of either radiographic progressive disease (PD) per RECIST 1.1 as determined by the BICR or death from any cause

Overall Survival (OS)
Approximately 50 months after the first subject is randomized

Defined as the time from randomization to death due to any cause

Secondary Endpoints
PFS per RECIST 1.1 by Investigator
Approximately 33 months after the first subject is randomized
Objective Response Rate (ORR) per RECIST 1.1 by the BICR and Investigator
Approximately 33 months after the first subject is randomized
Duration of Response (DOR) Per RECIST 1.1 by BICR and Investigator
Approximately 33 months after the first subject is randomized
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Zanzalintinib + PembrolizumabEXPERIMENTALSubjects with R/M HNSCC will receive zanzalintinib + pembrolizumab
Zanzalintinib-Matched Placebo + PembrolizumabPLACEBO_COMPARATORSubjects with R/M HNSCC will receive zanzalintinib-matched placebo + pembrolizumab
Interventions
NameTypeDescription
ZanzalintinibDRUGSpecified doses on specified days
Zanzalintinib-matched PlaceboDRUGSpecified doses on specified days
PembrolizumabBIOLOGICALSpecified doses on specified days
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites168

Inclusion Criteria: * Histologically or cytologically-confirmed R/M HNSCC that is considered incurable by local therapy. * Should not have had prior systemic therapy administered in the recurrent or metastatic setting. Systemic therapy which was completed more than 6 months prior to randomizatio...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilBulgariaChileColombiaCzechiaFranceGermanyGreeceHungaryIsraelItalyMalaysiaMexicoPolandRomaniaSlovakiaSouth KoreaSpainTaiwanThailandUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06082167primaryCompletionDate: changed
LOWMay 24, 2026NCT06082167studyFirstPostDate: changed