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IDH305

Phase 1

Advanced Malignancies That Harbor IDHR132 Mutations | Small molecule | Oncology |Novartis AG|Trials Updated: Apr 13, 2026

IDH305 development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since Mar 2015

IDH305 target and mechanism

Molecular targetIDH1
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment166

FDA Designations

No designations recorded

IDH305 clinical trials

IDH305 · 1 trial · 1 indication

Phase 1 1
NCT02381886A Study of IDH305 in Patients With Advanced Malignancies That Harbor IDH1R132 MutationsAdvanced Malignancies That Harbor IDHR132 Mutations
ACTIVE NOT_RECRUITING166 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of IDH305 in Patients With Advanced Malignancies That Harbor IDH1R132 Mutations
Advanced Malignancies That Harbor IDHR132 MutationsUnlock trial analytics

Study Endpoints

Primary Endpoints

Incident rate of dose limiting toxicities (DLTs)
21 days

To estimate the maximum tolerated dose/recommended dose for expansion (MTD/RDE)

Secondary Endpoints

Incidence of adverse events (AEs)
30 months
Plasma PK parameters (AUC, Cmax, Tmax)
30 months
Changes of 2-hydroxyglutarate concentration in patient specimens
30 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
IDH305EXPERIMENTAL -

Interventions

NameTypeDescription
IDH305DRUG -
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Eligibility Criteria

Age Range18 Years to 100 Years
SexALL
Healthy VolunteersNo
Study Sites16

Inclusion Criteria: * Documented IDH1R132-mutant tumors * ECOG performance status ≤ 2 Exclusion Criteria: * Patients who have received prior treatment with a mutant-specific IDH1 inhibitor (with the exception of glioma patients) * Medical conditions that would prevent the patient's participation ...

Countries:United StatesAustraliaBelgiumCanadaGermanyNetherlandsSingaporeSpain
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Frequently asked questions about IDH305

What is IDH305 used for?

IDH305 is an investigational therapy being studied in adults with advanced malignancies that harbor IDH1 R132 mutations. It is being evaluated in a Phase 1 trial in patients with these biomarker-selected solid and hematologic cancers. It is not approved for any indication.

What does IDH305 target?

IDH305 targets mutant IDH1, the isocitrate dehydrogenase 1 enzyme. It is a small-molecule IDH1 inhibitor designed to act on cancers carrying IDH1 R132 mutations. By inhibiting the mutant enzyme, the drug aims to interfere with the altered metabolic pathway driving these tumors.

Who is developing IDH305?

IDH305 is being developed by Novartis AG, which trades under the ticker NVS. Novartis is the sponsor of the clinical program evaluating the compound in IDH1-mutant advanced malignancies.

What phase is IDH305 in?

IDH305 is in Phase 1 clinical development. It is an investigational small molecule and has not been approved by the FDA or any other regulatory agency. The ongoing Phase 1 study is currently active but not recruiting participants.

What clinical trials is IDH305 in?

IDH305 is being studied in the Phase 1 trial NCT02381886, titled A Study of IDH305 in Patients With Advanced Malignancies That Harbor IDH1R132 Mutations. The trial has enrolled 166 patients across the United States, Australia, Belgium, Canada, Germany, Netherlands, Singapore, and Spain, and is active but not recruiting.