Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical Data - Earnings Per Share

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On April 26, 2026, Zai Lab hosted an investor call aligned with the 2026 AACR annual meeting, releasing first-in-human intracranial efficacy data for ZL-1310, its lead DLL3-targeted ADC, alongside updated efficacy results in platinum-refractory EP-NEC. The presentation included interim data from two ongoing clinical trials: a Phase 1 dose-escalation and expansion study in extensive-stage SCLC, and a global Phase Ib/II study in heavily pretreated EP-NEC and other DLL3-expressing solid tumors. Zai Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataDiversification in analytical tools complements portfolio diversification. Observing multiple datasets reduces the chance of oversight.Investors who keep detailed records of past trades often gain an edge over those who do not. Reviewing successes and failures allows them to identify patterns in decision-making, understand what strategies work best under certain conditions, and refine their approach over time.Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataPredictive analytics are increasingly part of traders’ toolkits. By forecasting potential movements, investors can plan entry and exit strategies more systematically.

Key Highlights

First, in the SCLC cohort, 49 evaluable patients with brain metastases (36% of the total Phase 1 trial population) recorded an intracranial overall response rate (ORR) of 54%, including 17% complete responses, with ORR rising to 62% at the 1.6 mg/kg recommended Phase 2 dose. Responses were consistent across patients with prior brain radiotherapy (50% ORR) and no prior radiotherapy (60% ORR), with 95% of responses observed at the first 6-week assessment and a median duration of response of 9 mont Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataCombining global perspectives with local insights provides a more comprehensive understanding. Monitoring developments in multiple regions helps investors anticipate cross-market impacts and potential opportunities.Real-time updates allow for rapid adjustments in trading strategies. Investors can reallocate capital, hedge positions, or take profits quickly when unexpected market movements occur.Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataInvestors may use data visualization tools to better understand complex relationships. Charts and graphs often make trends easier to identify.

Expert Insights

From a biopharma valuation perspective, these AACR data represent a material bullish catalyst for Amgen, as the Zai Lab collaboration fills a key gap in its SCLC and neuroendocrine tumor pipeline, complementing its approved DLL3-targeted T-cell engager tarlatamab, which posted $210 million in global sales in 2025, its first full year on market. The 54% intracranial ORR in SCLC brain metastases is a clinically meaningful differentiation from current standard of care, which delivers only 20-30% ORR in this high unmet need patient population, where median overall survival is just 8 months with current treatment options. Notably, the consistent response rates across irradiated and non-irradiated patients, paired with high concordance between intracranial and systemic activity, address a longstanding challenge in SCLC treatment, where blood-brain barrier penetration limits efficacy of most systemic therapies. For Amgen, the combination of ZL-1310’s cytotoxic tumor debulking activity and tarlatamab’s T-cell mediated immune response carries minimal overlapping toxicity, per Zai Lab’s Head of Global R&D Dr. Rafael Amado, creating a high likelihood of superior efficacy versus monotherapy in both second and first-line SCLC settings. Our team estimates that peak annual sales for the combination regimen could exceed $1.2 billion in the U.S. and EU alone, assuming 35% market share in second-line SCLC and 20% share in first-line SCLC, with additional upside from EP-NEC indications, where no established standard of care exists in the second-line setting. While Phase III confirmatory data is still pending, the DLLEVATE trial’s design, which stratifies patients by baseline brain metastases to reduce prognostic confounding, supports the reliability of upcoming efficacy readouts, lowering clinical development risk for both Zai Lab and Amgen. The lack of a required DLL3 biomarker for ZL-1310 eligibility further expands the addressable patient population by an estimated 30% versus competing DLL3-targeted therapies that require biomarker positivity, further supporting the asset’s commercial potential. We maintain our Outperform rating on Amgen (AMGN) with a 12-month price target of $355, representing 18% upside from current trading levels, driven in part by the expected revenue contribution from the ZL-1310 collaboration over the 2028-2032 period. (Word count: 1187) Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataMonitoring commodity prices can provide insight into sector performance. For example, changes in energy costs may impact industrial companies.The interplay between macroeconomic factors and market trends is a critical consideration. Changes in interest rates, inflation expectations, and fiscal policy can influence investor sentiment and create ripple effects across sectors. Staying informed about broader economic conditions supports more strategic planning.Amgen Inc. (AMGN) Partners with Zai Lab to Advance DLL3-Targeted ADC Candidate ZL-1310 Following Promising AACR Clinical DataData platforms often provide customizable features. This allows users to tailor their experience to their needs.