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FDA Approval of Atezolizumab for Stage II-IIIA NSCLC
Nov 2021: The Food and Drug Administration has approved atezolizumab (Tecentriq, Genentech, Inc.) for adjuvant treatment in patients with stage II to IIIA non-small cell lung cancer (NSCLC) whose tumours contain PD-L1 expression on less than 1% of tumour cells, as assessed by an FDA-approved test.
The VENTANA PD-L1 (SP263) Assay (Ventana Medical Systems, Inc.) was also authorised by the FDA today as a companion diagnostic device for selecting patients with NSCLC for adjuvant treatment with Tecentriq.
Clinical Efficacy and Disease-Free Survival Results
Disease-free survival (DFS) was the key efficacy outcome measure, as determined by the investigator in the primary efficacy analysis population (n=476) of patients with stage II-IIIA NSCLC with PD-L1 expression on 1% of tumour cells (PD-L1 1% TC). In the atezolizumab arm, median DFS was not reached (95 percent CI: 36.1, NE) compared to 35.3 months (95 percent CI: 29.0, NE) in the BSC arm (HR 0.66; 95 percent CI: 0.50, 0.88; p=0.004).
The DFS HR was 0.43 in a pre-specified secondary subgroup analysis of patients with PD-L1 TC 50% stage II-IIIA NSCLC (95 percent CI: 0.27, 0.68). The DFS HR was 0.87 in an exploratory subgroup study of patients with PD-L1 TC 1-49 percent stage II-IIIA NSCLC (95 percent CI: 0.60, 1.26).
Increased aspartate aminotransferase, blood creatinine, and alanine aminotransferase, as well as hyperkalemia, rash, cough, hypothyroidism, pyrexia, fatigue/asthenia, musculoskeletal pain, peripheral neuropathy, arthralgia, and pruritus, were the most common (ten percent) adverse reactions in patients receiving atezolizumab, including laboratory abnormalities.
For this indication, the recommended atezolizumab dose is 840 mg every two weeks, 1200 mg every three weeks, or 1680 mg every four weeks for up to a year.
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About Dr. Nishant Mittal
Dr. Nishant Mittal is a highly accomplished researcher with over 13 years of experience in the fields of cardiovascular biology and cancer research. Significant contributions to stem cell biology, developmental biology, and innovative research techniques mark his career. Research Highlights Dr. Mittal's research has focused on several key areas: 1) Cardio…
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This article is for educational purposes only and should not replace medical advice, diagnosis, or treatment from a qualified oncology specialist. Every patient's case is different. Treatment decisions should always be made after a review of complete medical records by the treating medical team.
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