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Study of Oral LY3410738 in Patients With Advanced Hematologic Malignancies With IDH1 or IDH2 Mutations

A Phase 1 Study of Oral LY3410738 in Patients With Advanced Hematologic Malignancies With IDH1 or IDH2 Mutations

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04603001
Enrollment
260
Registered
2020-10-26
Start date
2020-11-19
Completion date
2027-05-01
Last updated
2026-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia (AML), Chronic Myelomonocytic Leukemia (CMML), Myelodysplastic Syndrome (MDS), Myeloproliferative Neoplasms (MPNs)

Keywords

Loxo, LY3410738, isocitrate dehydrogenase, IDH, IDH1, IDH2, R132, R140, R172, 2-hydroxyglutarate, 2-HG, Advanced Hematologic Malignancies, Blasts, Acute Myeloid Leukemia, AML, Relapsed/refractory AML, R/R AML, Myelodysplastic Syndrome, MDS, Chronic Myelomonocytic Leukemia, CMML, Myeloproliferative Neoplasms, MPN, Advanced Hematologic Cancers, Ivosidenib, AG-120, Vorasidenib, AG-881, Olutasidenib, FT-2102, BAY1436032, DS-1001, IDH-305, Enasidenib, AG-221, Arginine 132, Arginine 140, Arginine 172

Brief summary

This is an open-label, multi-center Phase 1 study of LY3410738, an oral, covalent isocitrate dehydrogenase (IDH) inhibitor, in patients with IDH1 and/or IDH2-mutant advanced hematologic malignancies who may have received standard therapy

Detailed description

This study includes 2 parts: dose escalation and dose expansion. The dose escalation will enroll eligible patients with select IDH-mutant advanced hematologic malignancies. Once the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of LY3410738 is established, the dose expansion will begin and enroll into 5 cohorts to further evaluate safety and clinical activity

Interventions

Oral LY3410738

DRUGVenetoclax

Oral venetoclax

DRUGAzacitidine

Subcutaneous or intravenous azacitidine

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Advanced IDH mutant hematologic malignancy including: \-- For Dose Escalation Arm C and Dose Expansion Cohort 5: * Patients with newly diagnosed AML who are 75 years or older or have comorbidities that preclude the use of intensive chemotherapy * Patients with R/R AML (US only) * Patients must have received prior therapy * Blasts at least 5% in bone marrow. * Patients must have a qualifying IDH1 R132, IDH2 R140 or IDH2 R172 mutation * Eastern Cooperative Oncology Group (ECOG) 0 to 2 * Adequate organ function * Ability to swallow capsules or tablets * Ability to comply with outpatient treatment, laboratory monitoring, and required clinic visits for the duration of study participation * Willingness of men and women of reproductive potential to observe conventional and effective birth control for the duration of treatment and for 3 months following the last dose of study treatment.

Exclusion criteria

* Investigational agent or anticancer therapy within 2 weeks or 5 half-lives, whichever is shorter; or investigational monoclonal antibody within 4 weeks prior to planned start of LY3410738 * For Dose Escalation Arm C and Dose Expansion Cohort 5: * Prior venetoclax treatment is not allowed. * Patients are allowed to receive up to 1 cycle of single agent azacitidine or azacitidine plus venetoclax while waiting for results of locally obtained molecular profiling, including IDH1/IDH2 mutational status, prior to starting on study. * Major surgery within 4 weeks prior to planned start of LY3410738. * Active, uncontrolled clinically significant systemic bacterial, viral, fungal or parasitic infection or an unexplained fever \> 38.5ºC during Screening or on the first day of study drug administration. * Another concurrent malignancy requiring active therapy. * Active central nervous system involvement * Any unresolved toxicities from prior therapy greater than CTCAE v5.0 Grade 2 at the time of starting study treatment except for alopecia. * History of hematopoietic stem cell transplant (HSCT) or chimeric antigen receptor T-cell (CAR-T) therapy within 60 days of the first dose of LY3410738. * Clinically significant cardiovascular disease * Active hepatitis B virus (HBV) * Active hepatitis C virus (HCV) * Clinically significant active malabsorption syndrome or other condition likely to affect gastrointestinal (GI) absorption of the study drug * Current treatment with certain strong cytochrome P450 3A4 (CYP3A4) inhibitors or inducers and/or P- glycoprotein (P-gp) inhibitor, with the exception of patients being treated with allowed antifungal inhibitors of CYP3A4 * Treatment with proton pump inhibitor (PPIs) within 7 days of starting LY3410738 * Any serious underlying medical or psychiatric condition (e.g. alcohol or drug abuse), dementia or altered mental status or any issue that would impair the ability of the patient to understand informed consent or that in the opinion of the Investigator would contraindicate the patient's participation in the study or confound the results of the study * Known human immunodeficiency virus (HIV), excluded due to potential drug-drug interactions between antiretroviral medications and LY3410738 * Pregnancy, lactation or plan to breastfeeding during the study or within 90 days of the last dose of study intervention * Known hypersensitivity to any of the components of LY3410738 or its formulation

Design outcomes

Primary

MeasureTime frameDescription
To determine the maximum tolerated dose (MTD)/recommended Phase 2 dose (RP2D)Up to 30 monthsFor Dose Escalation
To assess the activity of LY3410738 as measured by the overall response rate (ORR) per the Investigator assessmentUp to 30 monthsFor Dose Expansion

Secondary

MeasureTime frameDescription
To determine the safety profile and tolerability of LY3410738 including acute and chronic toxicities by collecting and evaluating adverse events and treatment emergent adverse eventsUp to 30 monthsFor Dose Escalation
To characterize the pharmacokinetics (PK) properties of LY3410738 by collecting and evaluating serum at protocol specified time pointsUp to 30 monthsFor Dose Escalation
To characterize the pharmacodynamic properties of LY3410738 as expressed by change in 2-HG oncometabolite levels in plasmaUp to 30 monthsFor Dose Escalation
To assess the activity of LY3410738 as measured by the overall response rate (ORR) per Investigator assessmentUp to 30 monthsFor Dose Escalation
To assess the activity of LY3410738 as measured by Best Overall Response (BOR) per Investigator assessmentUp to 30 monthsFor Dose Expansion
To assess the activity of LY3410738 by Complete Remission (CR) Rate (CRR) plus partial hematologic recovery (AML patients)Up to 30 monthsFor Dose Expansion
To assess the activity of LY3410738 by Duration of ResponseUp to 30 monthsFor Dose Expansion
To assess the activity of LY3410738 by Hematologic improvement in patients with MDSUp to 30 monthsFor Dose Expansion
To determine the safety profile and tolerability of LY3410738 including acute and chronic toxicities by collecting and evaluating Adverse events and treatment emergent adverse eventsUp to 30 monthsFor Dose Expansion
To characterize the pharmacodynamic properties of LY3410738 as expressed by change in 2-HG oncometabolite levels in plasma.Up to 30 monthsFor Dose Expansion

Countries

Australia, Belgium, Canada, Finland, France, Germany, Israel, Singapore, South Korea, Spain, Taiwan, United States

Contacts

STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026