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Non-Small Cell Lung Cancer (NSCLC)2026-07-26

Ivonescimab (SMT112) in NSCLC: Independent Peak Sales Estimate

Independent Revenue Model for Summit Therapeutics's Ivonescimab Peak US and Global Annual Sales

Ivonescimab Overview

After having achieved NMPA approval in China, ivonescimab (SMT112) is now under FDA review as it's poised to enter the US and global markets. Originally developed and commercialized in China by Akeso Pharma, a partnership was formed with Summit Therapeutics in 2022 to speed up remaining development and hand off ex-China commercialization.[1]

Ivonescimab is a bispecific antibody targeting both PD-1 and VEGF to achieve simultaneous immune checkpoint and angiogenesis inhibition for greater anti-tumor effects than traditional PD-1s like pembrolizumab.[2] The therapy's breakthrough data came in the phase 3 Harmoni-2 study, where risk of death or progression was reduced by 49% and PFS was almost double that of pembrolizumab.[3][4] Such drastic improvements over the gold standard therapy across dozens of oncology treatments is a remarkable achievement and has huge implications for the revenue potential of ivonescimab.

To estimate the revenue potential, we've developed a peak annual sales model. Each model input is broken out and traced to credible academic or industry data sources. Scenario analyses are included, exploring different indication expansion scenarios at the time of peak sales, as well as scenarios varying the market share model parameter which carries some of the higest uncertainty in the model. Most importantly, the model is dynamic, allowing you to plug in your own values for any parameter to generate the most useful estimate.

Analyst Forecasts

Publicly available analyst estimates of peak annual sales are sparse and wide ranging. Below is the set of available estimates, with the geographic scope and target patient population specified when available.

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