FDA Grants Sotorasib Priority Review Designation For The Treatment Of Patients With KRAS G12C-Mutated Locally Advanced Or Metastatic Non-Small Cell Lung Cancer

- Amgen (NASDAQ:AMGN) today announced that the U.S. Food and Drug Administration (FDA) has granted Priority Review for sotorasib for the treatment of patients with KRAS G12C -mutated locally advanced or metastatic non-small cell lung cancer (NSCLC), following at least one prior systemic therapy.

The FDA grants Priority Review to applications for medicines that offer significant improvements over available options by demonstrating safety or efficacy improvements, preventing serious conditions, or enhancing patient compliance. Based on the Priority Review designation, the Prescription Drug User Fee Action (PDUFA) date for sotorasib is Aug. 16, 2021 , which is four months earlier than the standard review cycle.

The New Drug Application (NDA) is based on the Phase 2 results from the CodeBreaK 100 clinical trial that studied patients with locally advanced or metastatic NSCLC whose cancer had progressed despite treatment with chemotherapy and/or immunotherapy. Full results from the study were recently presented during the Presidential Symposium at the International Association for the Study of Lung Cancer (IASLC) 2020 World Conference on Lung Cancer (WCLC).

Amgen submitted the sotorasib NDA on Dec. 16, 2020 . The NDA is being reviewed by the FDA under its Real-Time Oncology Review (RTOR), a pilot program that aims to explore a more efficient review process that ensures safe and effective treatments are made available to patients as early as possible. Amgen submitted a Marketing Authorization Application (MAA) in the EU in Dec. 2020 . Additionally, Amgen submitted MAAs for sotorasib in Australia , Brazil , Canada and the United Kingdom in Jan. 2021 to participate in the FDA's Project Orbis initiative. Sotorasib has achieved Breakthrough Therapy Designation in the U.S. and China .

About Sotorasib
Amgen has taken on one of the toughest challenges of the last 40 years in cancer research by developing sotorasib, a KRAS ^G12C inhibitor. ¹ Sotorasib was the first KRAS ^G12C inhibitor to enter the clinic and is being studied in the broadest global clinical program exploring 10 combinations with clinical sites spanning five continents. In just over two years, the sotorasib clinical program has established the deepest clinical data set with more than 700 patients studied across 13 tumor types.

About Non-Small Cell Lung Cancer and the KRAS G12C Mutation
NSCLC accounts for 80%-85% of all lung cancers, and most patients (66%) have advanced or metastatic disease at initial diagnosis. ^2,3 KRAS G12C is one of the most common driver mutations in NSCLC and there is a high unmet need and poor outcomes associated in the second-line treatment of KRAS G12C driven NSCLC. ⁴ In the U.S., approximately 25,000 new patients are diagnosed with KRAS G12C -mutated NSCLC each year. ⁵

About CodeBreaK
The CodeBreaK clinical development program for Amgen's investigational drug sotorasib is designed to treat patients with an advanced solid tumor with the KRAS G12C mutation and address the longstanding unmet medical need for these cancers.

CodeBreaK 100, the Phase 2, first-in-human, open-label multicenter study, enrolled patients with KRAS G12C -mutant solid tumors. Eligible patients must have received a prior line of systemic anticancer therapy, consistent with their tumor type and stage of disease. The primary endpoint for the Phase 2 study was centrally assessed objective response rate. The Phase 2 trial in NSCLC enrolled 126 patients, 124 of whom had centrally evaluable lesions by RECIST at baseline. The Phase 2 trial in colorectal cancer (CRC) is fully enrolled and topline results are expected in 2021.

A global Phase 3 randomized active-controlled study comparing sotorasib to docetaxel (CodeBreaK 200) is currently recruiting patients with KRAS G12C -mutant NSCLC. Amgen also has more than 10 Phase 1b combination studies across various advanced solid tumors (CodeBreaK 101) open for enrollment.

For information, please visit www.codebreaktrials.com .

About Amgen Oncology
Amgen Oncology is searching for and finding answers to incredibly complex questions that will advance care and improve lives for cancer patients and their families. Our research drives us to understand the disease in the context of the patient's life – not just their cancer journey – so they can take control of their lives.

For the last four decades, we have been dedicated to discovering the firsts that matter in oncology and to finding ways to reduce the burden of cancer. Building on our heritage, Amgen continues to advance the largest pipeline in the Company's history, moving with great speed to advance those innovations for the patients who need them.

At Amgen, we are driven by our commitment to transform the lives of cancer patients and keep them at the center of everything we do.

To learn more about Amgen's innovative pipeline with diverse modalities and genetically validated targets, please visit AmgenOncology.com . For more information, follow us on www.twitter.com/amgenoncology .

About Amgen
Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology.

Amgen focuses on areas of high unmet medical need and leverages its expertise to strive for solutions that improve health outcomes and dramatically improve people's lives. A biotechnology pioneer since 1980, Amgen has grown to be one of the world's leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.

For more information, visit www.amgen.com and follow us on www.twitter.com/amgen .

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CONTACT: Amgen, Thousand Oaks
Trish Rowland , 805-447-5631 (Media)
Jessica Akopyan , 805-447-0974 (Media)
Arvind Sood , 805-447-1060 (Investors)

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