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MRTX1719

Phase 1

Mesothelioma | Small molecule | Oncology |Bristol-Myers Squibb Company|Last Updated: Sep 2, 2026

Target and mechanism

Molecular targetPRMT5
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment336

FDA Designations

No designations recorded

Clinical trial landscape

MRTX1719 · 1 trial · 6 indications

Phase 1 1
NCT05245500Phase 1 Study of MRTX1719 in Solid Tumors With MTAP DeletionMesothelioma
RECRUITING336 Analytics
PHASE1RECRUITING
Phase 1 Study of MRTX1719 in Solid Tumors With MTAP Deletion
MesotheliomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Patients who Experience Dose-Limiting Toxicity
21 days
Number of patients who experience a treatment-related adverse event
Up to 2 years
Objective response rate (ORR)
2 years
Duration of response (DOR)
2 years
Progression free survival (PFS)
2 years
Overall survival (OS)
2 years
Number of Patients With Clinically Significant Laboratory Assessments
Up to 4 years

Secondary Endpoints

Area under the plasma concentration versus time curve (AUC)
Up to 4 days
Time to achieve maximal plasma concentration (Tmax)
Up to 4 days
Maximum observed plasma concentration (Cmax)
Up to 4 days
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 1/1BEXPERIMENTALDose Escalation/Evaluation
Phase 1b Sub-studies 1-4EXPERIMENTAL -
Phase 1b Sub-study 5EXPERIMENTAL -

Interventions

NameTypeDescription
MRTX1719DRUGMRTX1719 is a potent PRMT5-MTA inhibitor. Specified dose on specified days
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites25

Inclusion Criteria * Histologically confirmed diagnosis of a solid tumor malignancy with homozygous deletion of the MTAP gene detected in tumor tissue. * Unresectable or metastatic disease. * Presence of a tumor lesion amenable to mandatory biopsy for pharmacodynamic evaluation at baseline and on-s...

Countries:United States
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Recent Changes (Last 90 Days)

LOWSep 2, 2026NCT05245500lastUpdatePostDate: changed
LOWSep 2, 2026NCT05245500lastUpdatePostDate: changed
LOWSep 2, 2026NCT05245500lastUpdatePostDate: changed

Frequently asked questions about MRTX1719

What is MRTX1719 used for?

MRTX1719 is an investigational small molecule being studied for the treatment of mesothelioma and other solid tumors, including non-small cell lung cancer, malignant peripheral nerve sheath tumors, pancreatic adenocarcinoma, and advanced solid tumors. It is currently in Phase 1 clinical development.

What does MRTX1719 target?

MRTX1719 targets PRMT5, a protein involved in cellular processes. It is being studied in solid tumors with MTAP deletion, as this genetic alteration may make tumors more susceptible to PRMT5 inhibition.

Who makes MRTX1719?

MRTX1719 is being developed by Bristol-Myers Squibb Company, a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol BMY.

What phase is MRTX1719 in?

MRTX1719 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 1 study is currently recruiting participants to evaluate its safety and efficacy.

What clinical trials is MRTX1719 in?

MRTX1719 is being evaluated in a Phase 1 study with the identifier NCT05245500, titled 'Phase 1 Study of MRTX1719 in Solid Tumors With MTAP Deletion.' The trial is recruiting participants in the United States and aims to enroll approximately 336 patients.

Is MRTX1719 the same as any other drug?

MRTX1719 is a distinct investigational compound and is not known to be the same as any other marketed drug. It is being studied under its own name in clinical trials for solid tumors with MTAP deletion.