FDA Approves LUMAKRAS™ (Sotorasib), The First And Only Targeted Treatment For Patients With KRAS G12C-Mutated Locally Advanced Or Metastatic Non-Small Cell Lung Cancer
On May 28, 2021, PRNewswire reported, Amgen (NASDAQ: AMGN) today announced that the U.S. Food and Drug Administration (FDA) has approved LUMAKRAS™ (sotorasib) for the treatment of adult patients with KRAS G12C-mutated locally advanced or metastatic non-small cell lung cancer (NSCLC), as determined by an FDA-approved test, who have received at least one prior systemic therapy. LUMAKRAS has received accelerated approval based on overall response rate (ORR) and duration of response (DoR). Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).
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"The FDA approval of LUMAKRAS is a breakthrough moment for patients with KRAS G12C-mutated non-small cell lung cancer because there is now a targeted therapy for this common, but previously elusive, mutation," said David M. Reese, M.D., executive vice president of Research and Development at Amgen. "KRAS has challenged cancer researchers for more than 40 years with many deeming it as 'undruggable.' The LUMAKRAS development program was a race against cancer for Amgen's scientists and clinical trial investigators who together have now successfully delivered this new medicine to patients in less than three years—from first patient dosed to U.S. regulatory approval."
The FDA approval of LUMAKRAS is based on results from a subset of patients in CodeBreaK 100, the largest clinical trial conducted to date exclusively for patients with the KRAS G12C mutation. The trial demonstrated favorable efficacy and tolerability in 124 patients with KRAS G12C mutation-positive NSCLC who had disease progression after receiving an immunotherapy and/or chemotherapy. In the trial, 960 mg of LUMAKRAS administered orally once-daily demonstrated an ORR (a proportion of patients with ≥ 30% decrease in tumor) of 36% (95% CI: 28-45) with 81% (95% CI: 73-87) of patients achieving disease control (percentage of patients who have achieved complete response, partial response and stable disease for more than three months). The median DoR was 10 months. The most common adverse reactions (≥ 20%) were diarrhea, musculoskeletal pain, nausea, fatigue, hepatotoxicity and cough. Adverse reactions resulting in permanent discontinuation of LUMAKRAS occurred in 9% of patients.
"Sotorasib represents a major advancement in oncology and changes the treatment paradigm for patients with KRAS G12C-mutated non-small cell lung cancer," said Bob T. Li, M.D., Ph.D., MPH, principal investigator at Memorial Sloan Kettering Cancer Center. "Patients with non-small cell lung cancer who have progressed beyond first-line treatment face a poor prognosis and have limited treatment options available to them. Sotorasib delivers a new option for these patients, and it is the first KRAS-targeted therapy to be approved after nearly four decades of research."
NSCLC accounts for approximately 84% of the 2.2 million new lung cancer diagnoses each year worldwide, including approximately 236,000 new cases in the U.S.2,3 KRAS G12C is one of the most prevalent driver mutations in NSCLC, with about 13% of patients with non-squamous NSCLC in the U.S. having the KRAS G12C mutation.1
Amgen's Commitment to Comprehensive Biomarker Testing and Patient Support
About half of all patients with NSCLC harbor a targetable driver mutation, yet despite the integral role that biomarkers play in identifying patients who may benefit from targeted therapies, many patients are not tested.4,5
Amgen has partnered with two companies—Guardant Health and QIAGEN—to develop blood- and tissue-based companion diagnostics (CDx), respectively, for LUMAKRAS. With the addition of these tests, patients and clinicians will have more options and flexibility for conducting KRAS G12C biomarker testing.
"Biomarker testing for patients with non-small cell lung cancer is critical because it informs a patient's treatment path with a personalized and tailored approach. The only way to identify the KRAS G12C mutation is to test for it, so I urge patients to ask their care teams about comprehensive biomarker testing. It is important that patients and their healthcare providers know that KRAS G12C is now an actionable mutation," said Andrea Ferris, president and CEO of LUNGevity. "Today's FDA approval of a therapy targeted for KRAS G12C, one of the most prevalent biomarkers in non-small cell lung cancer, brings hope to the many patients who carry this mutation and is a significant moment for the lung cancer community who need more innovative treatment options."
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