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KB707

Phase 1

Cancer | Monoclonal antibody | Oncology |Krystal Biotech, Inc.|Last Updated: May 18, 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
CONTROLLEDBiomarker
Total Trials1
Total Enrollment240
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05970497A Study Assessing KB707 for the Treatment of Locally Advanced or Metastatic Solid TumorsPHASE1 RECRUITING 240Oct 31, 2023Jul 1, 2027May 18, 202515 United States
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Study Endpoints
Primary Endpoints
Percentage of adverse events (AEs)
up to 36 months

Percentage of subjects with adverse events (AEs)

Percentage of serious adverse events (SAEs)
up to 36 months

Percentage of subjects with serious adverse events (SAEs)

Secondary Endpoints
Maximum tolerated dose (MTD)
up to 36 months
Percentage of overall response rate (ORR)
up to 36 months
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohorts 1 through 4EXPERIMENTALDose escalation and expansion cohorts: KB707 monotherapy in subjects with solid tumors.
Cohort 5EXPERIMENTALDose expansion cohort: KB707 administered in combination with Opdualag in approximately 100 subjects with advanced melanoma.
Cohort 6EXPERIMENTALDose expansion cohort: KB707 administered in combination with Keytruda in approximately 100 subjects with advanced melanoma.
Interventions
NameTypeDescription
KB707BIOLOGICALGenetically modified herpes simplex type 1 virus
OpdualagDRUGDual immunotherapy (PD-1 and LAG-3 immune checkpoint inhibitors)
KEYTRUDA ®( Pembrolizumab)DRUGImmunotherapy (PD-1 immune checkpoint inhibitor)
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites15

Key Inclusion Criteria: * Life expectancy \>12 weeks * ECOG performance status of 0 or 1 * Have measurable disease per RECIST v1.1 at Screening * Cohorts 1-4 only: Histologically confirmed diagnosis of a locally advanced or metastatic solid tumor and the individual has progressed on standard of car...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05970497primaryCompletionDate: changed
LOWMay 24, 2026NCT05970497studyFirstPostDate: changed