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Loncastuximab Tesirine and Acalabrutinib

Phase 1

Chronic Lymphocytic Leukemia | Small molecule | Oncology |ADC Therapeutics SA|Last Updated: Oct 1, 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
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment24
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05971251Addition of Loncastuximab Tesirine to Acalbrutinib , Chronic Lymphocytic LeukemiaPHASE1 ACTIVE NOT_RECRUITING 24Dec 18, 2023Dec 31, 2028Oct 1, 20251 United States
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Study Endpoints
Primary Endpoints
Primary Objective
12 months

Recommended phase 2 dose of loncastuximab tesirine in combination with acalabrutinib

Secondary Endpoints
Secondary Objective 1
6 months
Secondary Objective 2
12 months
Secondary Objective 3
12 months
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Dose Level 1:EXPERIMENTAL45 µg/kg Loncastuximab Tesirine every 21 days + Acalabrutinib 100 mg BID for 12 cycles
Dose Level 2EXPERIMENTAL60 µg/kg Loncastuximab Tesirine every 21 days + Acalabrutinib 100 mg BID for 12 cycles
Dose Level 3EXPERIMENTAL75 µg/kg Loncastuximab Tesirine every 21 days + Acalabrutinib 100 mg BID for 12 cycles
Dose level 4:EXPERIMENTAL90 µg /kg Loncastuximab Tesirine (for first 2 cycles followed by 75µg/kg for subsequent 10 cycles) + Acalabrutinib 100 mg BID for a total of 12 cycles.
Interventions
NameTypeDescription
Loncastuximab Tesirine and AcalabrutinibDRUGWill be given on Day 1 of each cycle with each cycle being 21 days, and is being added to BID Acalabrutinib
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: \- Inclusion Criteria For all patients 1. Diagnosis of CLL according to the IwCLL criteria or SLL according to the World Health Organization (WHO) criteria. This includes previous documentation of: * Biopsy-proven small lymphocytic lymphoma OR * Diagnosis of CLL accordin...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT05971251studyFirstPostDate: changed