Recent Updates
Recently added Catalysts

Elimusertib

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |Bayer AG|Trials Updated: Oct 11, 2023

Elimusertib target and mechanism

Molecular targetATR
Target classInhibitor
ModalitySmall molecule

Also known as Elimusertib (BAY1895344)

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment229

FDA Designations

No designations recorded

Elimusertib clinical trials

Elimusertib · 1 trial · 3 indications

Phase 1 1
NCT03188965First-in-human Study of ATR Inhibitor BAY1895344 in Patients With Advanced Solid Tumors and LymphomasAdvanced Solid Tumor
COMPLETED229 Analytics
PHASE1COMPLETED
First-in-human Study of ATR Inhibitor BAY1895344 in Patients With Advanced Solid Tumors and Lymphomas
Advanced Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

The maximum tolerated dose (MTD) and / or recommended Phase II dose (RP2D) of BAY1895344
Up to 6 months, minimum: 1 cycle (= 21days)

MTD and/or R2PD will be determined in Cycle 1 of Part A, Part A.1 and J-arm of Part A. The MTD is defined as the maximum dose at which the incidence of dose-limiting toxicities (DLTs) during Cycle 1 is below 30%, or the maximum dose tested, whichever is achieved first during dose-escalation.

Incidence of DLTs during Cycle 1 in dose-escalation cohorts during Part A of the study
During Cycle 1, 1 cycle=21 days
Incidence of DLTs during Cycle 1 in dose-escalation cohorts during Part A.1 of the study
During Cycle 1, 1 cycle=28 days
Incidence of DLTs during Cycle 1 in dose-escalation cohorts during J-arm of the study
During Cycle 1, 1 cycle=21 days
The incidence of serious and nonserious treatment-emergent adverse events (TEAEs)
After first administration of study drug up to 30 days after the last dose of study drug
Area under the plasma concentration of BAY1895344 vs. time curve from zero to 12 hours after single-dose (AUC[0-12]) and multiple-dose administrations (AUC[0-12]md) in Cycle 1
Pre-dose and up to 12 hours post-dose at Day 1 of Cycle 1 and Day 10 (Part A and J-arm) or Day 17 (Part A.1) of Cycle 1

AUC(0-12) and AUC(0-12)md will be evaluated in Part A, A.1 and J-arm of Part A.

Maximum observed drug concentration in plasma of BAY1895344 after single-dose (Cmax) and multiple-dose administrations (Cmax,md) in Cycle 1
Pre-dose and up to 12 hours post-dose at Day 1 of Cycle 1 and Day 10 (Part A and J-arm) or Day 17 (Part A.1) of Cycle 1

Cmax and Cmax,md will be evaluated in Part A, A.1 and J-arm of Part A.

Secondary Endpoints

Incidence of solid tumor responses (except CRPC) consistent with the RECIST 1.1 criteria
Through study completion, an average of 4 months
Incidence of lymphoma responses consistent with the Lugano Classification
Through study completion, an average of 4 months
Incidence of CRPC tumor responses consistent with the recommendations of the PCWG3
Through study completion, an average of 4 months
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A: single-agent dose-escalationEXPERIMENTALPatients with histologically confirmed solid tumors or non-Hodgkin's lymphoma (NHL) receive BAY1895344 in a 21-day cycle.
Part A.1: Single-agent dose escalation with alternative dosing scheduleEXPERIMENTALPatients with histologically confirmed solid tumors or NHL known to be positive for ATM loss and/or ATM deleterious mutations receive BAY1895344 in a 28-day cycle.
J-arm of Part A: dose escalation cohort in Japanese patientsEXPERIMENTALJapanese patients with histologically confirmed solid tumors receive BAY1895344 at two dose levels: MTD-1 and MTD.
Part B: single-agent expansionEXPERIMENTALPatients with a) DDR deficiency biomarker-positive advanced solid tumors: castration-resistant prostate cancer (CRPC), HER2-negative breast cancer (BC), colorectal cancer (CRC), and gynecological tumors; OR b) histologically confirmed advanced cancer and loss of ATM regardless of the cancer type receive BAY1895344 at MTD determined at the end of dose escalation.
Part B.1: single-agent expansion with alternative dosing scheduleEXPERIMENTALPatients with histologically confirmed relapsed or refractory MCL receive BAY1895344 at a dose determined after evaluation of multiple BAY1895344 doses in Part A.1

Interventions

NameTypeDescription
Elimusertib (BAY1895344)DRUGSolution or tablet, oral, to be administered until evidence of tumor progression, unacceptable toxicity, consent withdrawal, or withdrawal from the study at the discretion of the investigator.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites29

Inclusion Criteria: Part A - single-agent dose-escalation: \- Patients with histologically confirmed solid tumors or NHL. Patients with tumors known to be positive for deoxyribonucleic acid damage repair (DDR) defects (such as ataxia-telangiectasia mutated \[ATM\] deleterious mutation or low ATM e...

Countries:United StatesCanadaChinaJapanSingaporeSwitzerlandUnited Kingdom
Unlock Eligibility Criteria

Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumor")

Frequently asked questions about Elimusertib

What is Elimusertib used for?

Elimusertib is an investigational small molecule being studied in adults with advanced solid tumors, including non-Hodgkin's lymphoma and mantle cell lymphoma. It is not approved for any indication and remains in clinical development. The Phase 1 study enrolled patients 18 years and older across the United States, Canada, China, Japan, Singapore, Switzerland, and the United Kingdom.

What does Elimusertib target?

Elimusertib targets ATR, a kinase involved in the DNA damage response. It is classified as an ATR inhibitor. By inhibiting ATR, the drug is designed to interfere with tumor cell DNA damage repair pathways. The Phase 1 study was biomarker-selected, meaning patients were enrolled based on specific molecular characteristics related to the drug's target.

Who is developing Elimusertib?

Elimusertib is being developed by Bayer AG, which trades under the ticker BAYRY. Bayer conducted the first-in-human Phase 1 study of the ATR inhibitor in patients with advanced solid tumors and lymphomas. The drug is also known by its development code BAY1895344.

What phase is Elimusertib in?

Elimusertib is in Phase 1 clinical development. It is an investigational agent and has not been approved by the FDA or any other regulatory authority. The single Phase 1 trial, NCT03188965, has been completed and enrolled 229 patients with advanced solid tumors and lymphomas.

What clinical trials is Elimusertib in?

Elimusertib has been evaluated in one clinical trial, NCT03188965, titled First-in-human Study of ATR Inhibitor BAY1895344 in Patients With Advanced Solid Tumors and Lymphomas. This Phase 1 trial is completed and enrolled 229 participants. It was a controlled study without randomization or double-blinding, conducted across seven countries.

Is Elimusertib the same as BAY1895344?

Yes, Elimusertib and BAY1895344 refer to the same investigational drug. BAY1895344 is the development code used by Bayer AG, while Elimusertib is the international nonproprietary name. Both names appear in the literature and trial records for the ATR inhibitor being studied in advanced solid tumors and lymphomas.