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IDE034

Phase 1

Esophageal Squamous Cell Carcinoma | Small molecule | Oncology |IDEAYA Biosciences, Inc.|Trials Updated: Jun 18, 2026

IDE034 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Mar 2026

IDE034 target and mechanism

Molecular targetB7H3, PTK7
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment150

FDA Designations

No designations recorded

IDE034 clinical trials

IDE034 · 1 trial · 8 indications

Phase 1 1
NCT07503808A Study of IDE034 in Adult Participants With Locally Advanced/Metastatic Solid Tumors TypesEsophageal Squamous Cell Carcinoma
RECRUITING150 Analytics
PHASE1RECRUITING
A Study of IDE034 in Adult Participants With Locally Advanced/Metastatic Solid Tumors Types
Esophageal Squamous Cell CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety and tolerability of IDE034 in Part 1 dose escalation
21 days following the first dose of IDE034

Incidence of dose limiting toxicities; incidence and severity of AEs and SAEs graded based on CTCAE V6.0

Safety and tolerability of IDE034 in Part 2 dose expansion
Approximately 20 months total study duration

Incidence of dose limiting toxicities; incidence and severity of AEs and SAEs graded based on CTCAE V6.0

To evaluate preliminary anti-tumor activity of IDE034 in Part 2 dose expansion
Time Frame: Approximately 20 months total study duration

Objective Response Rate (ORR) per RECIST v1.1

Secondary Endpoints

To evaluate preliminary anti-tumor activity of IDE034 in Part 1 dose escalation
Approximately 20 months total study duration
To further characterize preliminary anti-tumor activity of IDE034 in Part 1 dose escalation
Approximately 20 months total study duration
To further characterize preliminary anti-tumor activity of IDE034 in Part 2 dose expansion
Approximately 20 months total study duration
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1:IDE034 Dose EscalationEXPERIMENTALIDE034 Dose Escalation Successive cohorts of participants will be treated with increasing doses of IDE034 until the maximum tolerated dose or the recommended dose for expansion is determined
Part 2: IDE034 Dose ExpansionEXPERIMENTALIDE034 Dose Expansion To further assess the safety, tolerability, and preliminary antitumor activity at one or more dose levels of IDE034 selected from dose escalation

Interventions

NameTypeDescription
IDE034DRUGIDE034
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites15

Inclusion Criteria: 1. Participant must be at least 18 years of age or the age of maturity per local regulations 2. Participants with advanced recurrent or metastatic solid tumors expressing B7-H3 and PTK7 in the following indications: NSCLC, ESCC, endometrial cancer, HGSOC, HNSCC, TNBC (estrogen r...

Countries:United States
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Frequently asked questions about IDE034

What is IDE034?

IDE034 is an investigational small molecule developed by IDEAYA Biosciences, Inc. for the treatment of advanced solid tumors, including esophageal squamous cell carcinoma. It is being studied in a Phase 1 clinical trial and has not been approved by the FDA. IDE034 is designed as a targeted cancer therapy for patients with locally advanced or metastatic disease.

What does IDE034 target?

IDE034 targets B7H3 and PTK7, two proteins expressed on tumor cells. By binding these targets, IDE034 is designed to act on cancer cells in solid tumors. Both B7H3 and PTK7 are protein targets, and the drug is a small molecule being evaluated in biomarker-selected patients with advanced malignancies.

What is IDE034 used for in esophageal squamous cell carcinoma?

IDE034 is being evaluated for the treatment of esophageal squamous cell carcinoma, a type of cancer affecting the esophagus. It is also being studied in other advanced solid tumors. IDE034 remains investigational and is not approved for any indication; it is available only through clinical trial participation for eligible patients.

Who makes IDE034?

IDE034 is developed by IDEAYA Biosciences, Inc., a biotechnology company whose common stock trades on the Nasdaq under the ticker symbol IDYA. IDEAYA is the sponsor responsible for the clinical development of IDE034, including its ongoing Phase 1 study in patients with locally advanced or metastatic solid tumors.

What phase is IDE034 in?

IDE034 is in Phase 1 clinical development. The single ongoing trial is currently recruiting participants and has an planned enrollment of 150 patients. IDE034 has not completed any trials and is not FDA approved; it remains an investigational agent being tested for safety and tolerability in advanced solid tumors.

What clinical trials is IDE034 in?

IDE034 is being studied in one active clinical trial, NCT07503808, titled A Study of IDE034 in Adult Participants With Locally Advanced/Metastatic Solid Tumors Types. The Phase 1 trial is recruiting in the United States and enrolls adults aged 18 years and older, including patients with esophageal squamous cell carcinoma and other solid tumors.