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Ivonescimab/kg

Phase 3

Squamous Cell Carcinoma Head and Neck Cancer (HNSCC) | Small molecule | Oncology |Summit Therapeutics Inc.|Last Updated: May 1, 2026

Target and mechanism

Target class-Mab (Antibody)
ModalitySmall molecule

Also known as ivonescimab, Ivonescimab, Ivonescimab Injection, Drug: Ivonescimab Injection, Drug: Ivonescimab

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment780

FDA Designations

No designations recorded

Clinical trial landscape

Ivonescimab/kg · 2 trials · 2 indications

Phase 3 1Phase 2 1
NCT07264075Study Comparing Ivonescimab Alone or Ivonescimab in Combination With Ligufalimab Versus Pembrolizumab for the Treatment of SCCHNSquamous Cell Carcinoma Head and Neck Cancer (HNSCC)
NOT YET_RECRUITING780 Analytics
PHASE3NOT YET_RECRUITING
Study Comparing Ivonescimab Alone or Ivonescimab in Combination With Ligufalimab Versus Pembrolizumab for the Treatment of SCCHN
Squamous Cell Carcinoma Head and Neck Cancer (HNSCC)Unlock trial analytics

Study Endpoints

Primary Endpoints

Overall survival
From the date of randomization to the date of death from any cause up to 54 months

the time from the date of randomization to the date of death from any cause. Patients still alive at the time of analysis will be censored at the date of their last known alive date

Optimal Dose of Ivonescimab in Combination with Carboplatin and Etoposide - Overall Response Rate (ORR)
18 months

Overall Response Rate (ORR) defined as the proportion of participants achieving complete response (CR) or partial response (PR) as best response on treatment based on RECIST v1.1 criteria at each dose level.

Optimal Dose of Ivonescimab in Combination with Carboplatin and Etoposide - Grade 3-5 Treatment-Related Toxicity Rate
18 months

All grade 3-5 adverse events (AE) with treatment attribution of possibly, probably or definite based on Common Terminology Criteria for Adverse Events Version 5.0 (CTCAE V5.0) that are not resolved in accordance with treatment guidelines will be counted. Rate is the proportion of treated participants experiencing at least one of these adverse events as defined during the time of observation.

Secondary Endpoints

Progression-Free Survival (PFS) of Ivonescimab in Combination with Carboplatin and Etoposide
18 months
Overall Survival (OS) of of Ivonescimab in Combination with Carboplatin and Etoposide
24 months
Disease Control Rate (DCR) of Ivonescimab in Combination with Carboplatin and Etoposide
18 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Bras A: IvonescimabEXPERIMENTALIvonescimab (10 mg/kg iv, 60 min ± 10 min infusion, Q3W)
Bras B: Ivonescimab - LigufalimabEXPERIMENTALIvonescimab (10 mg/kg iv, 60 min ± 10 min infusion, Q3W), and ligufalimab (45 mg/kg iv, 120 min ± 15 min infusion, Q3W).
Bras C: PembrolizumabACTIVE_COMPARATORPembrolizumab (200 mg iv, 60 min ± 10 min infusion, Q3W).
Arm A: Ivonescimab 10 mg/kgEXPERIMENTALInduction with ivonescimab 10 mg/kg, carboplatin and etoposide every 21 days x 4 cycles followed by maintenance ivonescimab 10 mg/kg every 21 days until progression, unacceptable toxicity or participant withdrawal. Up to 24 months of ivonescimab from cycle 1 day 1 of Induction.
Arm B: Ivonescimab 20 mg/kgEXPERIMENTALInduction with ivonescimab 20 mg/kg, carboplatin and etoposide every 21 days x 4 cycles followed by maintenance ivonescimab 20 mg/kg every 21 days until progression, unacceptable toxicity or participant withdrawal. Up to 24 months of ivonescimab from cycle 1 day 1 of Induction.

Interventions

NameTypeDescription
Ivonescimab 10 mg/kgDRUGIvonescimab is a humanized immunoglobulin (Ig) G1 monoclonal antibody (mAb) being investigated as a cancer immunotherapy agent. Ivonescimab binds to human VEGF-A which is involved in tumor angiogenesis, and to human PD-1 that is a cell surface receptor expressed primarily on activated T cells and acts to inhibit T cell activation.
LigufalimabDRUGAK117 is a humanized IgG4 mAb being investigated as a cancer immunotherapy agent
Pembrolizumab (KEYTRUDA ®)DRUGPembrolizumab is a humanized monoclonal antibody (IgG4 kappa isotype with stabilizing sequence alteration in the Fc region) against PD-1 (programmed cell death-1), produced in Chinese hamster ovary cells by recombinant DNA technology.
Ivonescimab 20 mg/kgDRUGInduction every 21 days x 4 cycles: Ivonescimab 20 mg/kg IV on Day 1 followed by carboplatin AUC 5 IV on Day 1 and etoposide 100 mg/m² IV on Day 1, 2 and 3 followed by maintenance ivonescimab 20 mg/kg every 21 days until progression, unacceptable toxicity or participant withdrawal. Up to 24 months of ivonescimab from cycle 1 day 1 of Induction.
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Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: 1. Patient capable of voluntary giving her/his written informed consent. 2. Age ≥ 18 and \< 80 years old at the time of enrolment. 3. Eastern Cooperative Oncology Organization (ECOG) performance status score of 0 or 1. 4. Expected survival ≥ 6 months at randomization. 5. Patient...

Countries:United States
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Frequently asked questions about Ivonescimab/kg

What is Ivonescimab used for?

Ivonescimab is an investigational oncology therapy being studied for multiple cancers, including biliary tract cancer, salivary gland cancer, pleural mesothelioma, non-small cell lung cancer, and metastatic colorectal cancer. It is currently in Phase 2 clinical development and has not been approved by the FDA.

What does Ivonescimab target?

Ivonescimab is a monoclonal antibody (a -mab class drug) being developed as a small molecule therapy. Its specific molecular target has not been disclosed in available information, so its exact mechanism of action is not detailed here.

Who makes Ivonescimab?

Ivonescimab is being developed by Summit Therapeutics Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol SMMT. The company is conducting clinical trials to evaluate the drug's safety and efficacy in various oncology indications.

What phase is Ivonescimab in?

Ivonescimab is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet received FDA approval and is still being studied in clinical trials to determine its safety and effectiveness for treating cancer.

What clinical trials is Ivonescimab in?

Ivonescimab is being studied in several clinical trials, including NCT06840834 for pleural mesothelioma, NCT07057791 for extensive-stage small cell lung cancer, NCT07264075 for head and neck cancer, and NCT07359456 for metastatic colorectal cancer. These trials are in various stages of recruitment.

Is Ivonescimab the same as Ivonescimab Injection?

Yes, Ivonescimab is also known as Ivonescimab Injection, Ivonescimab 10 mg/kg, and Ivonescimab/kg. These names refer to the same drug product being developed by Summit Therapeutics Inc. for the treatment of various cancers.