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IDE849

Phase 1

Small-cell Lung Cancer | Small molecule | Oncology |IDEAYA Biosciences, Inc.|Last Updated: Jan 23, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment208
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07174583A Study of IDE849 in Patients With DLL3 Expressing Tumors Including Small Cell Lung CancerPHASE1 RECRUITING 208Oct 14, 2025May 1, 2029Jan 23, 202639 United States, Australia +5
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Study Endpoints
Primary Endpoints
Part 1A: Safety and Tolerability of IDE849 (Monotherapy)
approximately 4 years total study duration

Incidence of dose-limiting toxicities, incidence and severity AEs and SAEs as measured by CTCAE V5.0.

Part 1B: Safety and Tolerability of IDE849 in Combination with durvalumab or IDE161
approximately 4 years total study duration

Incidence of dose-limiting toxicities, incidence and severity AEs and SAEs as measured by CTCAE V5.0.

Part 2: Safety and Tolerability of IDE849 (Monotherapy Dose Expansion)
approximately 4 years total study duration

Incidence and severity and relationship of AEs and SAEs as measured by CTCAE V5.0

4. Part 2: Safety and Tolerability of IDE849 in Combination with durvalumab or IDE161 (Dose Expansion)
approximately 4 years total study duration

Incidence and severity and relationship of AEs and SAEs graded as measured by CTCAE V 5.0.

Part 2: Objective Response Rate (ORR) and Investigator Assessment of IDE849 ORR per RECIST 1.1
approximately 4 years total study duration

ORR per RECIST v1.1, defined as the proportion of subjects with a Complete Response (CR) or Partial Response (PR) as assessed by the Investigator.

Part 2: Duration of Response (DOR) and Investigator Assessment of IDE849 DOR per RECIST 1.1
approximately 4 years total study duration

DOR per RECIST v1.1, defined as the time from the first documented Complete Response (CR) or Partial Response (PR) to disease progression or death, whichever occurs first, as assessed by the Investigator.

Secondary Endpoints
Part 1 and Part 2: Disease Control Rate (DCR) and Investigator Assessment of IDE849 DCR per RECIST 1.
approximately 4 years total study duration
Part 2: Progression-Free Survival (PFS) PFS per RECIST1.1 PFS per RECIST1.1.
approximately 4 years total study duration
Part 2: Overall Survival (OS)
approximately 4 years total study duration
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Experimental: Part 1A IDE849 Monotherapy (Dose Escalation)EXPERIMENTALSuccessive cohorts of participants will be treated with escalating doses of IDE849 until the maximum tolerated dose and dose for expansion are determined
Experimental: Part 1B IDE849 + durvalumab (Dose Escalation)EXPERIMENTALMultiple doses of IDE849 will be tested in combination with durvalumab to identify the optimal combination dose.
Experimental: Part 1B IDE849 + IDE161 (Dose Escalation)EXPERIMENTALMultiple doses of IDE849 will be tested in combination with IDE161 to identify the optimal combination dose.
Experimental: Part 2 IDE849 Monotherapy (Dose Expansion)EXPERIMENTALChosen monotherapy doses of IDE849 will be tested in additional participants.
Experimental: Part 2 IDE849 + durvalumab (Dose Expansion)EXPERIMENTALChose combination dose of IDE849 + durvalumab will be tested in additional participants.
Experimental: Part 2 IDE849 + IDE161 (Dose Expansion)EXPERIMENTALChose combination dose of IDE849 + IDE161 will be testing in additional participants
Interventions
NameTypeDescription
IDE849DRUGIV administration
durvalumabDRUGIV administration
IDE161DRUGoral administration
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites39

Inclusion Criteria: 1. Are willing to participate in this clinical study, understand the study procedures, and are able to sign the written ICF. 2. Subjects with histologically or cytologically confirmed extensive-stage SCLC neuroendocrine carcinoma (NEC), and other DLL3+ tumors, are eligible per p...

Countries:United StatesAustraliaBrazilCanadaJapanSouth KoreaSpain
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Competitive Landscape -Non-Small Cell Lung Cancer 406 trials
CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK25PHASE3Pembrolizumab, Olaparib, Etoposide, Carboplatin, Cisplatin
Amgen Inc.AMGN5PHASE3AMG 510, Docetaxel, ABP 234, Pembrolizumab, Sotorasib
AstraZeneca PLCAZN63PHASE3Datopotamab deruxtecan, Durvalumab, Carboplatin, Pembrolizumab, Cisplatin
Revolution Medicines, Inc.RVMD8PHASE3daraxonrasib, docetaxel, RMC-6291, Elironrasib, Daraxonrasib
Eli Lilly and CompanyLLY19PHASE3Selpercatinib, Carboplatin, Cisplatin, Pemetrexed, Pembrolizumab
AbbVie, Inc.ABBV10PHASE3Telisotuzumab Vedotin, Docetaxel, Telisotuzumab vedotin, Telisotuzumab Adizutecan, Livmoniplimab
Bristol-Myers Squibb CompanyBMY20PHASE3Repotrectinib, Crizotinib, Nivolumab, Carboplatin, Cisplatin
BioNTech SE Sponsored ADRBNTX7PHASE3Gotistobart, Docetaxel, PM8002, Carboplatin, Pemetrexed
Gilead Sciences, Inc.GILD4PHASE3Sacituzumab Govitecan-hziy, Docetaxel, Zimberelimab, Domvanalimab, Pembrolizumab
GSK plc Sponsored ADRGSK4PHASE3Cobolimab, Dostarlimab, Docetaxel, Belrestotug, Pembrolizumab
Johnson & JohnsonJNJ18PHASE3Lazertinib, Amivantamab, Pemetrexed, Carboplatin, Osimertinib
Pfizer Inc.PFE21PHASE3Lorlatinib, Crizotinib, Avelumab, Lorlatanib, Talazoparib
ArriVent BioPharma, Inc.AVBP9PHASE3Firmonertinib, Drug: Furmonertinib, Furmonertinib, JAB-21822, JAB 21822
Novartis AG Sponsored ADRNVS9PHASE3JDQ443, docetaxel, TNO155, tislelizumab, DKY709
Summit Therapeutics IncSMMT2PHASE3Ivonescimab, Pembrolizumab
Nuvation Bio, Inc. Class ANUVB4PHASE3Taletrectinib, Crizotinib, AB-106
Genmab A/S Sponsored ADRGMAB4PHASE3Acasunlimab, Pembrolizumab, Docetaxel, Rina-S, GEN1042
Incyte CorporationINCY1PHASE3Retifanlimab, Pemetrexed, Cisplatin, Carboplatin, Paclitaxel
Regeneron Pharmaceuticals, Inc.REGN6PHASE2cemiplimab, Platinum Doublet, fianlimab, Pemetrexed, Paclitaxel
BeOne Medicines Ltd. Sponsored ADRONC6PHASE3Tislelizumab, Cisplatin, Paclitaxel, Pemetrexed Disodium, Carboplatin
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07174583primaryCompletionDate: changed
LOWMay 24, 2026NCT07174583studyFirstPostDate: changed