Recent Updates
Recently added Catalysts

TPST-1495 twice daily

Phase 1

Solid Tumor | Small molecule | Oncology |Tempest Therapeutics, Inc.|Last Updated: Sep 12, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment89
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04344795Phase 1a/1b Study of TPST-1495 as a Single Agent and in Combination With Pembrolizumab in Subjects With Solid TumorsPHASE1 COMPLETED 89May 6, 2020Sep 25, 2024Sep 12, 202511 United States
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Determination of maximum tolerated dose and/or recommended Phase 2 dose (RP2D) and optimum dose schedule for TPST-1495 as a single agent and in combination with pembrolizumab
From start of treatment to treatment termination visit, up to 24 months

Determination of maximum tolerated dose and/or recommended Phase 2 dose (RP2D) and optimum dose schedule for TPST-1495 as a single agent and in combination with pembrolizumab based on dose limiting toxicities

Secondary Endpoints
Incidence of adverse events and serious adverse events as assessed by NCI-CTCAE v.5.0
From start of treatment to treatment termination visit, up to 24 months
Assess pharmacokinetics: maximum serum concentration (Cmax)
From start of treatment to treatment termination visit, up to 24 months
Assess pharmacokinetics: area under the serum concentration-time curve (AUC)
From start of treatment to treatment termination visit, up to 24 months
Unlock Study Endpoints
Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TPST-1495 monotherapy dose escalationEXPERIMENTALSubjects will receive escalating doses of TPST-1495 administered orally twice daily until maximum tolerated dose is reached or until disease progression
TPST-1495 monotherapy dose and schedule optimizationEXPERIMENTALSubjects will receive alternative TPST-1495 administration schedules until RP2D for the selected schedule is determined or until disease progression.
TPST-1495 monotherapy dose expansionEXPERIMENTALSubjects will receive selected dose regimen from dose and schedule optimization stage until disease progression
TPST-1495 in combination with pembrolizumab dose and schedule optimizationEXPERIMENTALSubjects will receive alternative TPST-1495 administration schedules in combination with pembrolizumab until RP2D for the selected schedule is determined or until disease progression.
TPST-1495 in combination with pembrolizumab dose expansionEXPERIMENTALSubjects will receive selected dose regimen from dose and schedule optimization stage until disease progression
Interventions
NameTypeDescription
TPST-1495 twice dailyDRUGTPST-1495 administered orally twice daily
TPST-1495 once daily or on intermittent scheduleDRUGTPST-1495 administered orally once daily or on intermittent schedule
PembrolizumabDRUGPembrolizumab dosed per label recommendations
Unlock Study Design Details
Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites11

Subjects must meet all the following inclusion criteria to be eligible: 1. Subjects must have a histologically-confirmed malignancy that is metastatic or unresectable for which there is no remaining standard therapy known to confer clinical benefit. While all solid tumor types are eligible for the ...

Countries:United States
Unlock Eligibility Criteria