Datopotamab Deruxtecan Biologics License Application Accepted in the U.S. for Patients with Previously Treated Advanced Nonsquamous Non-Small Cell Lung Cancer

Rhea-AI Summary

Daiichi Sankyo and AstraZeneca's Biologics License Application for datopotamab deruxtecan has been accepted in the U.S. for the treatment of nonsquamous non-small cell lung cancer. The application is based on results from the TROPION-Lung01 phase 3 trial, showing significant improvements in progression-free survival compared to standard care.

Positive

• Acceptance of BLA for datopotamab deruxtecan in the U.S. for nonsquamous NSCLC treatment.
• Results from TROPION-Lung01 phase 3 trial led to the BLA acceptance.
• Statistically significant improvement in progression-free survival observed with datopotamab deruxtecan.
• Interim results show a favorable trend in overall survival compared to docetaxel.
• Safety profile consistent with previous trials, no new safety concerns identified.
• Potential for datopotamab deruxtecan to become the first TROP2 directed ADC for lung cancer patients.

Negative

• None.

Oncology Doctor

The recent acceptance of the Biologics License Application for datopotamab deruxtecan by the FDA marks a significant milestone in the treatment of nonsquamous non-small cell lung cancer (NSCLC). Given the complexity of cancer treatment and the limited options for patients with advanced stages of NSCLC, the development of new therapies is critical. Datopotamab deruxtecan, as a TROP2 directed antibody drug conjugate (ADC), represents an innovative approach, leveraging targeted therapy to deliver cytotoxic drugs directly to cancer cells, potentially reducing systemic toxicity.

From a clinical perspective, the improvement in progression-free survival (PFS) is a promising outcome, indicating a delay in disease progression. Although the overall survival (OS) data are not yet statistically significant, the trend towards benefit is encouraging. The safety profile's consistency with previous trials suggests a manageable risk profile, which is of utmost importance for patients already burdened with treatment side effects.

Medical Research Analyst

The TROPION-Lung01 phase 3 trial's results are pivotal for the potential approval of datopotamab deruxtecan. The trial's dual primary endpoints, PFS and OS, are standard measures of efficacy in oncology clinical trials. The statistically significant PFS improvement over docetaxel positions datopotamab deruxtecan favorably against the current standard of care. However, investors and stakeholders should remain cautious until the final OS results are available, as regulatory approval and market adoption can be significantly influenced by these outcomes.

Furthermore, the parallel submission for breast cancer treatment and additional global submissions indicate a strategic approach to expanding the drug's market presence. The potential approval in multiple indications could lead to a substantial increase in the addressable patient population, which is a critical factor for the financial performance of Daiichi Sankyo and AstraZeneca.

Market Research Analyst

The acceptance of datopotamab deruxtecan's BLA by the FDA is indicative of its potential market impact. NSCLC accounts for a significant proportion of lung cancer cases and nonsquamous NSCLC represents a considerable segment within this category. As such, the introduction of a new treatment option could disrupt existing treatment paradigms and capture market share. The market will be closely monitoring the PDUFA date set for December 20, 2024, as approval could lead to rapid commercialization efforts.

It's important to note that the competitive landscape includes other pharmaceutical companies developing targeted therapies for NSCLC. The market's reception of datopotamab deruxtecan will depend on its comparative efficacy, safety profile and pricing strategy in relation to these competitors. Additionally, the ongoing regulatory discussions and submissions for other indications suggest a long-term strategy for growth and diversification of the product portfolio, which could have a positive impact on the company's stock performance and market valuation.

• Application based on results from the TROPION-Lung01 phase 3 trial
• If approved, Daiichi Sankyo and AstraZeneca’s datopotamab deruxtecan may be the first TROP2 directed antibody drug conjugate for patients with lung cancer

TOKYO & BASKING RIDGE, N.J.--(BUSINESS WIRE)-- Daiichi Sankyo (TSE: 4568) and AstraZeneca’s (LSE/STO/Nasdaq: AZN) Biologics License Application (BLA) for datopotamab deruxtecan (Dato-DXd) has been accepted in the U.S. for the treatment of adult patients with locally advanced or metastatic nonsquamous non-small cell lung cancer (NSCLC) who have received prior systemic therapy.

Datopotamab deruxtecan is a specifically engineered TROP2 directed DXd antibody drug conjugate (ADC) being jointly developed by Daiichi Sankyo and AstraZeneca.

The Prescription Drug User Fee Act (PDUFA) date, the U.S. Food and Drug Administration (FDA) action date for its regulatory decision, is December 20, 2024.

The BLA is based on results from the pivotal TROPION-Lung01 phase 3 trial presented at a Presidential Symposium at the European Society for Medical Oncology (#ESMO23) 2023 Congress. In the trial, datopotamab deruxtecan demonstrated a statistically significant improvement for the dual primary endpoint of progression-free survival (PFS) compared to docetaxel, the current standard of care, in patients with locally advanced or metastatic NSCLC treated with at least one prior line of therapy. For the dual primary endpoint of overall survival (OS), interim results numerically favored datopotamab deruxtecan over docetaxel in the overall population, however, results did not reach statistical significance at the time of data cut-off. In patients with nonsquamous NSCLC, datopotamab deruxtecan showed a clinically meaningful PFS benefit and a numerically favorable OS trend. The trial is ongoing and OS will be assessed at final analysis. The safety profile of datopotamab deruxtecan was consistent with that observed in other ongoing trials with no new safety concerns identified.

“Today’s news is an important step forward in our goal of creating new standards of care that have the potential to transform the treatment of patients with non-small cell lung cancer,” said Ken Takeshita, MD, Global Head, R&D, Daiichi Sankyo. “We are encouraged by the FDA's acceptance of the BLA as we endeavor to make datopotamab deruxtecan the first TROP2 directed antibody drug conjugate approved to treat patients with nonsquamous non-small cell lung cancer after disease progression on prior systemic therapy. We look forward to working closely with the FDA to bring datopotamab deruxtecan to patients.”

“Datopotamab deruxtecan has the potential to offer patients with previously treated advanced nonsquamous non-small cell lung cancer an effective and tolerable alternative to conventional chemotherapy,” said Susan Galbraith, MBBChir, PhD, Executive Vice President, Oncology R&D, AstraZeneca. “With regulatory discussions ongoing around the world and a parallel submission underway in the U.S. in breast cancer, this is only the beginning of our efforts to make this novel treatment available to patients as quickly as possible.”

A parallel BLA for datopotamab deruxtecan based on results from the pivotal TROPION-Breast01 phase 3 trial is pending acceptance in the U.S. for the treatment of adult patients with metastatic hormone receptor (HR) positive, HER2 negative (IHC 0, IHC 1+ or IHC 2+/ISH-) breast cancer. Additional regulatory submissions for datopotamab deruxtecan in lung and breast cancer are underway globally.

About TROPION-Lung01
TROPION-Lung01 is an ongoing global, randomized, multicenter, open-label phase 3 trial evaluating the efficacy and safety of datopotamab deruxtecan versus docetaxel in patients with locally advanced or metastatic NSCLC with and without actionable genomic alterations previously treated with at least one prior line of therapy. Patients with actionable genomic alterations were previously treated with platinum-based chemotherapy and an approved targeted therapy. Patients without known actionable genomic alterations were previously treated, concurrently or sequentially, with platinum-based chemotherapy and a PD-1 or PD-L1 inhibitor.

The dual primary endpoints of TROPION-Lung01 are PFS as assessed by blinded independent central review (BICR) and OS. Key secondary endpoints include investigator-assessed PFS, objective response rate, duration of response, time to response, disease control rate as assessed by both BICR and investigator, and safety. TROPION-Lung01 enrolled approximately 600 patients in Asia, Europe, North America and South America. For more information visit ClinicalTrials.gov.

About Advanced Non-Small Cell Lung Cancer
Nearly 250,000 lung cancer cases were diagnosed in the U.S. in 2023.¹ NSCLC is the most common type of lung cancer, accounting for about 80% of cases.¹ Approximately 70% and 30% of NSCLC tumors are of nonsquamous or squamous histology, respectively.² While immunotherapy and targeted therapies have improved outcomes in the first-line setting, most patients eventually experience disease progression and receive chemotherapy.^3,4,5 For decades, chemotherapy has been the last treatment available for patients with advanced NSCLC, despite limited effectiveness and known side effects.^3,4,5

TROP2 is a protein broadly expressed in the majority of NSCLC tumors.⁶ There is currently no TROP2 directed ADC approved for the treatment of lung cancer.^7,8

About Datopotamab Deruxtecan (Dato-DXd)
Datopotamab deruxtecan (Dato-DXd) is an investigational TROP2 directed ADC. Designed using Daiichi Sankyo’s proprietary DXd ADC Technology, datopotamab deruxtecan is one of six DXd ADCs in the oncology pipeline of Daiichi Sankyo, and one of the most advanced programs in AstraZeneca’s ADC scientific platform. Datopotamab deruxtecan is comprised of a humanized anti-TROP2 IgG1 monoclonal antibody, developed in collaboration with Sapporo Medical University, attached to a number of topoisomerase I inhibitor payloads (an exatecan derivative, DXd) via tetrapeptide-based cleavable linkers.

A comprehensive development program called TROPION is underway globally with more than 14 trials evaluating the efficacy and safety of datopotamab deruxtecan across multiple cancers, including NSCLC, triple negative breast cancer and HR positive, HER2 negative breast cancer. Beyond the TROPION program, datopotamab deruxtecan also is being evaluated in novel combinations in several ongoing trials.

About the Daiichi Sankyo and AstraZeneca Collaboration
Daiichi Sankyo and AstraZeneca entered into a global collaboration to jointly develop and commercialize ENHERTU in March 2019 and datopotamab deruxtecan (Dato-DXd) in July 2020, except in Japan where Daiichi Sankyo maintains exclusive rights for each ADC. Daiichi Sankyo is responsible for the manufacturing and supply of ENHERTU and datopotamab deruxtecan.

About the DXd ADC Portfolio of Daiichi Sankyo
The DXd ADC portfolio of Daiichi Sankyo currently consists of six ADCs in clinical development across multiple types of cancer. ENHERTU, a HER2 directed ADC, and datopotamab deruxtecan, a TROP2 directed ADC, are being jointly developed and commercialized globally with AstraZeneca. Patritumab deruxtecan (HER3-DXd), a HER3 directed ADC, ifinatamab deruxtecan (I-DXd), a B7-H3 directed ADC, and raludotatug deruxtecan (R-DXd), a CDH6 directed ADC, are being jointly developed and commercialized globally with Merck & Co., Inc., Rahway, N.J. USA. DS-3939, a TA-MUC1 directed ADC, is being developed by Daiichi Sankyo.

Designed using Daiichi Sankyo’s proprietary DXd ADC Technology to target and deliver a cytotoxic payload inside cancer cells that express a specific cell surface antigen, each ADC consists of a monoclonal antibody attached to a number of topoisomerase I inhibitor payloads (an exatecan derivative, DXd) via tetrapeptide-based cleavable linkers.

Datopotamab deruxtecan, ifinatamab deruxtecan, patritumab deruxtecan, raludotatug deruxtecan and DS-3939 are investigational medicines that have not been approved for any indication in any country. Safety and efficacy have not been established.

About Daiichi Sankyo
Daiichi Sankyo is an innovative global healthcare company contributing to the sustainable development of society that discovers, develops and delivers new standards of care to enrich the quality of life around the world. With more than 120 years of experience, Daiichi Sankyo leverages its world-class science and technology to create new modalities and innovative medicines for people with cancer, cardiovascular and other diseases with high unmet medical need. For more information, please visit www.daiichisankyo.com.

References:

¹ Cancer.net. Lung Cancer – Non-Small Cell: Statistics. Accessed February 2024.
² National Cancer Institute. SEER Cancer Statistics Factsheets: Lung and Bronchus Cancer, 2015. Accessed February 2024.
³ Chen R, et al. J Hemal Oncol. 2020;13(1):58.
⁴ Majeed U, et al. J Hematol Oncol. 2021;14(1):108
⁵ Pircher A, et al. Anticancer Research. 2020;70(5):287-294.
⁶ Mito R, et al. Pathol Int. 2020;70(5):287-294.
⁷ Rodríguez-Abreau D et al. Ann Onc. 2021 Jul;32(7): 881-895.
⁸ American Cancer Society. Targeted Drug Therapy for Non-Small Cell Lung Cancer. Accessed February 2024.

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Media Contacts:



Global/US:

Jennifer Brennan

Daiichi Sankyo, Inc.

jbrennan2@dsi.com

+1 908 900 3183 (mobile)



Japan:

Koji Ogiwara

Daiichi Sankyo Co., Ltd.

ogiwara.koji.ay@daiichisankyo.co.jp

+81 3 6225 1126 (office)

Investor Relations Contact:

DaiichiSankyoIR@daiichisankyo.co.jp

Source: Daiichi Sankyo

FAQ

What is the status of Daiichi Sankyo and AstraZeneca's Biologics License Application for datopotamab deruxtecan?

The BLA has been accepted in the U.S. for the treatment of nonsquamous non-small cell lung cancer.

What trial results led to the acceptance of the BLA?

Results from the TROPION-Lung01 phase 3 trial demonstrated significant improvements in progression-free survival.

What is the Prescription Drug User Fee Act (PDUFA) date for datopotamab deruxtecan?

The PDUFA date, the FDA action date, is December 20, 2024.

What was the safety profile of datopotamab deruxtecan in the trial?

The safety profile was consistent with previous trials, with no new safety concerns identified.

What potential does datopotamab deruxtecan hold for lung cancer patients?

It has the potential to become the first TROP2 directed ADC for patients with lung cancer.