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KRRO-110

Phase 1

Alpha-1 Anti-trypsin Deficiency | Small molecule | Other |Korro Bio, Inc.|Last Updated: Apr 17, 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
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment64
FDA Designations
No designations recorded
Trial Stopped -NCT06677307: The study was terminated for business decision reasons.
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06677307A Phase 1/2a, Single- and Multiple-dose Escalation Study of KRRO-110PHASE1 TERMINATED 42Jan 13, 2025Dec 15, 2025Apr 17, 20265 Australia, New Zealand
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Study Endpoints
Primary Endpoints
Safety and Tolerability
From Day 1 to Day 43 in the SAD and from Day 1 to Day 85 in the MAD

Type, frequency, and severity of treatment-emergent adverse events (TEAEs)

Secondary Endpoints
Pharmacokinetics (PK) of KRRO-110
Day 1 to Day 43 (SAD), and Day 1 to Day 85 (MAD)
Pharmacodynamics (PD) of KRRO-110
Day 1 to Day 43 (SAD), and Day 1 to Day 85 (MAD)
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1: KRRO-110 (Part A and Part B)EXPERIMENTALKRRO-110 is an RNA editing oligonucleotide encapsulated in a lipid nanoparticle (LNP) administered by intravenous (IV) infusion as a single dose in Part A (SAD), multi-dose in Part B (MAD).
Arm 2: Placebo (Part A only)PLACEBO_COMPARATORPlacebo, IV administration
Interventions
NameTypeDescription
KRRO-110DRUGKRRO-110 drug product, IV
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersYes
Study Sites5

Inclusion Criteria: Part A SAD cohort Inclusion Criteria (Healthy Volunteers) * Adult male or female participants, 18 to 65 years of age * Documented PiMM genotype * Participants who are willing to and able to provide signed written informed consent PiZZ Genotype (Part A SAD and Part B MAD cohort...

Countries:AustraliaNew Zealand
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Recent Changes (Last 90 Days)
MEDIUMMay 26, 2026NCT06677307TRIAL_REMOVED: changed
LOWMay 24, 2026NCT06677307studyFirstPostDate: changed