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Loncastuximab tesirine and rituximab

Phase 1

Central Nervous System Lymphoma | Small molecule | Oncology |ADC Therapeutics SA|Last Updated: Dec 3, 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 Enrollment12
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06607549Loncastuximab Tesirine and Rituximab Following Stereotactic Radiosurgery in Patients With Central Nervous System Lymphomas (SOLAR)PHASE1 RECRUITING 12Mar 18, 2025Nov 1, 2030Dec 3, 20251 United States
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Study Endpoints
Primary Endpoints
A safe and tolerable dose of lonca-R following SRS in patients with CNS lymphoma who have relapsed disease or are untreated and not candidates for HDMTX-based therapy.
5 years

Maximum Tolerated Dose (MTD): MTD is defined as the highest dose under consideration that has an estimated DLT probability below 25% based upon the Bayesian optimal interval design. The MTD will be decided based on the BOIN decision rules set for phase 1a portion of the study.

Secondary Endpoints
To assess best overall response rate (ORR) following lonca-R
6 months
To assess best complete response (CR) rate following lonca-R.
6 months
The frequency of adverse events (AEs) and serious adverse events (SAEs) characterized by type, severity (as defined by the NIH CTCAE, version 5.0), seriousness, duration, and relationship to study treatment.
5 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Treatment: All PatientsEXPERIMENTALThis study has two main goals: Goal 1: The study will investigate the safety and tolerability of loncastuximab tesirine and rituximab (lonca-R). Goal 2: The study will determine the maximum tolerated dose of lonca-R.
Interventions
NameTypeDescription
Loncastuximab tesirine and rituximab (Lonca-R)DRUGPatients will receive stereotactic radiosurgery (SRS) followed by a brain MRI approx. 3 weeks after SRS. This will be followed by loncastuximab tesirine and rituximab administered intravenously for a total of 6 cycles (every 21 days).
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Participant aged ≥ 18 years * ECOG Performance Status ≤ 3 * Histologically confirmed primary CNS lymphoma or secondary diffuse large B-cell lymphoma (DLBCL) with CNS involvement with either: * Relapsed or refractory disease with at least 1 prior therapy OR * Ineligible fo...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT06607549studyFirstPostDate: changed