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Pirtobrutinib and rituximab

Phase 2

Mantle Cell Lymphoma (MCL) | Small molecule | Oncology |Eli Lilly and Company|Last Updated: Dec 16, 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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment50
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07285590Clinical Trial to Evaluate the Efficacy and Safety of Pirtobrutinib With Rituximab in Patients With Mantle Cell LymphomaPHASE2 RECRUITING 50Sep 30, 2025Dec 1, 2032Dec 16, 202516 Portugal, Spain
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Study Endpoints
Primary Endpoints
Efficacy of Pirtobrutinib in combination with rituximab after 6 cycles
At the end of Cycle 6 (each cycle is 28 days)

To assess the activity of Pirtobrutinib in combination with rituximab (P-R) as a therapeutic alternative to immunochemotherapy (R-Bendamustine or R-CHOP regimen) in patients with an indolent clinical presentation of MCL. The primary objective will be assessed by the complete remission rate (CRR), defined as the percentage of patients who achieve a complete response (CR) at the end of Cycle 6 of the P-R combination according to the Lugano Classification.

Secondary Endpoints
To evaluate the activity of Pirtobrutinib-Rituximab combination along time in terms of ORR
At month 6, month 12 and month 24.
Evaluation of MRD
After cycle 6, cycle 12, cycle 30, cycle 36, cycle 42, cycle 48 (each cycle is 28 days), and End of treatment (28 days after las administration of Study drug).
To determine the safety and tolerability of P-R combination
Baseline, during all the cycles day 1 visit (each cycle is 28 days) and at EoT (28 days afert las administration of Study drug).
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Pirtobrutinib with rituximabEXPERIMENTALPatients will receive a P-R combination for at least 24 cycles (C24). The first cycle of P-R will be administered at day 1 (baseline) . Pirtobrutinib discontinuation will be decided after C24, according to the MRD response and the TP53 mutational status. Rituximab treatment will end up at C23.
Interventions
NameTypeDescription
Pirtobrutinib and rituximabDRUGPatients will receive the study treatment (P-R combination) at day 1 (baseline) and during the treatment period (C24). Pirtobrutinib discontinuation per protocol will be decided after C24, according to the MRD response and the TP53 mutational status. Rituximab treatment will end up at C23.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites16

Inclusion Criteria: 1. Adult patients (≥18 years of age). 2. Written informed consent must be obtained before any study-specific assessment is performed. 3. Subjects with confirmed diagnosis of Mantle Cell Lymphoma according to the International Consensus Classification, (ICC) 2022\] or World Healt...

Countries:PortugalSpain
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07285590primaryCompletionDate: changed
LOWMay 24, 2026NCT07285590studyFirstPostDate: changed