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Loncastuximab tesirine 150 µg/Kg

Phase 2

Marginal Zone Lymphoma | Small molecule | Oncology |ADC Therapeutics SA|Last Updated: Sep 30, 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
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment50
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05296070Open-label of Loncastuximab Tesirine (ADCT-402) in Relapsed/Refractory Marginal Zone LymphomaPHASE2 RECRUITING 50Jun 21, 2022Jun 30, 2029Sep 30, 20254 United States
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Study Endpoints
Primary Endpoints
Complete Response (CR) rate of Loncastuximab tesirine in relapsed/refractory at 6 months
6 months.

CR rate is defined as the Complete Response (CR)/n, where n is the number of participants. The proportion of patients with best overall response of complete response (CR), per Cheson criteria if disease is not PET (Positron emission tomography)-avid in initial screening and by revised Lugano criteria if screening PET-CT demonstrated PET-avid disease.CR will be defined by a Deauville score of ≤ 3.

Complete Response (CR) rate of Loncastuximab tesirine in relapsed/refractory at 12 months
12 months.

CR rate is defined as the Complete Response (CR)/n, where n is the number of participants. The proportion of patients with best overall response of complete response (CR), per Cheson criteria if disease is not PET-avid in initial screening and by revised Lugano criteria if screening PET-CT demonstrated PET-avid disease.CR will be defined by a Deauville score of ≤ 3.

Secondary Endpoints
Partial Response rate at 6 months
6 months
Partial Response rate at 12 months
12 months
Overall response rate (ORR) at 6 months
6 months
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Loncastuximab tesirine Cycles 1-6EXPERIMENTALPatients will be treated with loncastuximab tesirine for a total of 6 cycles on Day 1 (+/-3) of each 21 day (3 week) cycle. The total duration of treatment is approximately 18 weeks (4.5 months)
Interventions
NameTypeDescription
Loncastuximab tesirine 150 µg/KgDRUGParticipants will be treated with loncastuximab tesirine at a dose of 150 µg/Kg given as an intravenous infusion (given as per treatment guidelines for 30 minutes or longer) on Day 1 (+/- 3 days) of each 21 day cycle for Cycle 1 - 2.
Loncastuximab tesirine 75µg/KgDRUGParticipants will be treated with loncastuximab tesirine at a dose of 75 µg/Kg given as an intravenous infusion (given as per treatment guidelines for 30 minutes or longer) on Day 1 (+/- 3 days) of each 21 day cycle for Cycle 3 - 6.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: 1. Men and women, aged 18 years or older. 2. Histologically confirmed MZL, including extranodal, nodal, and splenic subtypes. 3. Previously received 1 or more lines of systemic therapy, including at least 1 anti-CD20 antibody (cluster of differentiation antigen 20) (either as mo...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT05296070studyFirstPostDate: changed