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Ivonescimab

Phase 3

Non-Small Cell Lung Cancer | Small molecule | Oncology |Summit Therapeutics Inc.|Last Updated: Apr 30, 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
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials4
Total Enrollment2,499
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06767514Clinical Study of Ivonescimab for First-line Treatment of Metastatic NSCLC Patients With High PD-L1PHASE3 RECRUITING 780Feb 27, 2025Jun 1, 2029Feb 24, 2026202 United States, Canada +14
NCT05899608Clinical Study of Ivonescimab for First-line Treatment of Metastatic NSCLC PatientsPHASE3 RECRUITING 1,600Oct 26, 2023Dec 31, 2029Apr 30, 2026253 United States, Belgium +15
NCT07535463A Study of Ivonescimab, Chemotherapy, and Stereotactic Radiosurgery for People With Non-Small Cell Lung CancerPHASE1 RECRUITING 53Apr 10, 2026Apr 1, 2028Apr 17, 20267 United States
NCT07535437A Study of Ivonescimab in Combination With Dato-DXd or Osimertinib in People With Non-Small Cell Lung CancerPHASE1 RECRUITING 66Apr 9, 2026Apr 1, 2028Apr 21, 20267 United States
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Study Endpoints
Primary Endpoints
Overall Survival (OS)
Up to approximately 36 months
Progression free survival (PFS)
Up to approximately 36 months
identify the Recommended Phase 2 Dose (RPD2)
21 days

per NCI CTCAE version 5.0 criteria

intracranial progression-free survival (iPFS),
3 months

defined as the time of treatment start to radiologically confirmed intracranial progression or death from any cause.

determine the maximum tolerated dose (MTD) (phase I)
1 year

Three participants will be enrolled at starting dose level and assessed for dose limiting toxicities (DLTs) for 1 full cycle (21 days) in cohort A and 2 full cycles (42 days) for cohort B. Toxicity will be graded according to NCI CTCAE version 5.

progression free survival (phase I)
6 months

defined as the proportion of patients who remained alive and progression-free at 6 months) will be computed by Kaplan-Meier estimates and reduced to a standard sample proportion in the absence of censoring, with the follow-up starting at the initiation of therapy.

measure objective response rate (ORR) (phase II)
1 year

by RECIST v1.1

Secondary Endpoints
Objective response rate (ORR)
Up to approximately 36 months
Disease control rate ( DCR)
Up to approximately 36 months
Duration of response (DoR)
Up to approximately 36 months
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm A - IvonescimabEXPERIMENTALSubject will receive ivonescimab as an IV injection
Arm B - PembrolizumabACTIVE_COMPARATORSubject will receive pembrolizumab as an IV injection
Arm A - Ivonescimab and chemotherapyEXPERIMENTALSubject will receive ivonescimab and chemotherapy
Arm B - Pembrolizumab and chemotherapyACTIVE_COMPARATORSubject will receive pembrolizumab and chemotherapy
Ivonescimab, Chemotherapy, and Stereotactic RadiosurgeryEXPERIMENTALIn the Phase I portion of the study, patients with NSCLC brain metastases will receive ivonescimab at a starting dose of 10 mg/kg on Day 1 (with chemotherapy), followed by stereotactic radiosurgery (9Gy x 3 fractions) starting on Days 7-10. Following a toxicity check at Day 21, patients will receive standard dosing of ivonescimab with chemotherapy at the discretion of the medical oncologist. In the Phase II portion of the study, patients will receive the RP2D from the initial phase of ivonescimab and chemotherapy on C1D1, followed by stereotactic radiosurgery (9Gy x 3 fractions) starting on Days 7-10.
Cohort A (ivonescimab + Dato-DXd) Phase IAEXPERIMENTAL3 + 3 escalation (2 dose levels)
Cohort B (Ivonescimab + Osimertinib) Phase IBEXPERIMENTAL3 + 3 escalation (2 dose levels)
Cohort A (ivonescimab + Dato-DXd) (Phase II)EXPERIMENTALEvery 3 weeks
Cohort B (Ivonescimab + Osimertinib) (Phase II)EXPERIMENTALIvonescimab every 3 weeks + Osimertinib daily
Interventions
NameTypeDescription
Ivonescimab InjectionBIOLOGICALSubject will receive ivonescimab as an IV injection
Pembrolizumab InjectionBIOLOGICALSubject will receive Pembrolizumab as an IV injection
IvonescimabDRUGIvonescimab will be administered IV on Day 1 of the first cycle starting at 10 mg/kg with chemotherapy. Dose escalation will proceed to 15 mg/kg and 20 mg/kg as tolerated.
Stereotactic RadiosurgeryRADIATION(9Gy x 3 fractions) starting on Days 7-10.
Dato-DXdDRUGdose escalation 4 mg/kg 6 mg/kg
OsimertinibDRUGdose escalation 40mg 80 mg
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites202

Inclusion Criteria: * Age ≥ 18 years old at the time of enrollment * Eastern Cooperative Oncology Group (ECOG) performance status score of 0 - 1 * Expected life expectancy ≥ 3 months * Metastatic (Stage IV) NSCLC * Histologically or cytologically confirmed squamous or non-squamous NSCLC * Tumor dem...

Countries:United StatesCanadaChinaFranceGermanyGreeceHungaryItalyJapanMexicoPolandPortugalRomaniaSerbiaSpainTurkey (Türkiye)BelgiumIrelandSwedenUnited Kingdom
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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, 2026NCT05899608primaryCompletionDate: changed
LOWMay 26, 2026NCT06767514primaryCompletionDate: changed
LOWMay 24, 2026NCT07535463studyFirstPostDate: changed
LOWMay 24, 2026NCT07535437studyFirstPostDate: changed
LOWMay 24, 2026NCT06767514studyFirstPostDate: changed
LOWMay 24, 2026NCT05899608studyFirstPostDate: changed
LOWMay 21, 2026NCT07535437NEW_TRIAL: changed
LOWMay 21, 2026NCT07535463NEW_TRIAL: changed
LOWMay 21, 2026NCT07535437NEW_TRIAL: changed
LOWMay 21, 2026NCT07535463NEW_TRIAL: changed