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CAR T cells

Phase 1

Malignant Pleural Mesothelioma (MPM) | Monoclonal antibody | Oncology |Atara Biotherapeutics, Inc.|Last Updated: Jul 25, 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 Enrollment14
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04577326Mesothelin-targeted CAR T-cell Therapy in Patients With MesotheliomaPHASE1 ACTIVE NOT_RECRUITING 14Sep 30, 2020Sep 30, 2026Jul 25, 20251 United States
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Study Endpoints
Primary Endpoints
MTD of M28z1XXPD1DNR
2 years

CTCAE v5.0 will be used to assess the severity of all treatment emerging toxicities/adverse events regardless

Secondary Endpoints
overall response rate (ORR)
2 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Engineered Autologous T CellsEXPERIMENTALFollowing eligibility screening and enrollment, patients will undergo leukapheresis for the collection of peripheral blood mononuclear cells (PBMCs), to enable generation of M28z1XXPD1DNR. Following successful M28z1XXPD1DNR CAR T-cell manufacturing, patients will be reevaluated for eligibility. A preconditioning regimen of one dose of intravenous (IV) cyclophosphamide 1.5 g/m2 will be administered 2-7 days before the infusion. A single dose of M28z1XXPD1DNR CAR T cells will be instilled into the pleural cavity via a pleural catheter or through an interventional radiology-guided needle. All patients will be monitored in the hospital for a minimum of 48 h following the administration of CAR T cells.
Interventions
NameTypeDescription
cyclophosphamideDRUGA preconditioning regimen of one dose of intravenous (IV) cyclophosphamide 1.5 g/m\^2 will be administered 2-7 days before the infusion.
CAR T cellsBIOLOGICALA single dose of M28z1XXPD1DNR CAR T cells will be instilled into the pleural cavity via a pleural catheter or through an interventional radiology-guided needle. Cohorts of 3 patients will be treated at each dose level, up to a maximum of 3 x 10\^7 T cells/kg or until the MTD has been reached.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Aged ≥18 years 2. Karnofsky performance status ≥70% 3. Pathologically confirmed MPM 1. Epithelioid or biphasic histologic diagnosis provided that ≥10% of the tumor expresses MSLN by IHC analysis 2. Patients with peritoneal mesothelioma with pleural involvement are elig...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT04577326studyFirstPostDate: changed