Genentech, a member of the Roche Group, announced that the US Food and Drug Administration (FDA) has approved Tecentriq® (atezolizumab) as a first-line (initial) treatment for adults with metastatic non-small cell lung cancer (NSCLC) whose tumors have high PD-L1 expression (PD-L1 stained ≥ 50% of tumor cells [TC ≥ 50%] or PD-L1 stained tumor-infiltrating [IC] covering ≥ 10% of the tumor area [IC ≥ 10%]), as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations.
“We are pleased to offer people with certain types of lung cancer a new chemotherapy-free option that can help prolong their lives and be administered on a flexible dosing schedule, including an option for once-a-month Tecentriq infusions,” said Levi Garraway, M.D., Ph.D., chief medical officer and head of Global Product Development. “Today marks the fifth approval of Tecentriq in lung cancer, as we remain committed to providing an effective and tailored treatment option for every person diagnosed with this disease.”
This approval is based on an interim analysis from the Phase III IMpower110 study, which showed Tecentriq monotherapy improved overall survival (OS) by 7.1 months compared with chemotherapy (median OS=20.2 versus 13.1 months; hazard ratio [HR]=0.59, 95% CI: 0.40–0.89; p=0.0106) in people with high PD-L1 expression (TC3/IC3-wild-type [WT]). Safety for Tecentriq appeared to be consistent with its known safety profile, and no new safety signals were identified. Grade 3–4 treatment-related adverse events (AEs) were reported in 12.9% of people receiving Tecentriq compared with 44.1% of people receiving chemotherapy.
Tecentriq is the first and only single-agent cancer immunotherapy with three dosing options, allowing administration every two, three or four weeks. The supplemental Biologics License Application for the Tecentriq monotherapy was granted Priority Review, a designation given to medicines the FDA has determined to have the potential to provide significant improvements in the treatment, prevention or diagnosis of a disease.
In the U.S., Tecentriq has received four approvals across NSCLC, including as a single agent or in combination with targeted therapies and/or chemotherapies. It is also approved in combination with carboplatin and etoposide (chemotherapy) for the first-line treatment of adults with extensive-stage small cell lung cancer.
Genentech has an extensive development program for Tecentriq, including multiple ongoing and planned Phase III studies across lung, genitourinary, skin, breast, gastrointestinal, gynecological and head and neck cancers. This includes studies evaluating Tecentriq both alone and in combination with other medicines.
IMpower110 is a Phase III, randomized, open-label study evaluating the efficacy and safety of Tecentriq monotherapy compared with cisplatin or carboplatin and pemetrexed or gemcitabine (chemotherapy) in PD-L1-selected, chemotherapy-naïve participants with stage IV non-squamous or squamous NSCLC. The study enrolled 572 people, of whom 554 were in the intention-to-treat WT population, which excluded people with EGFR or ALK genomic tumor aberrations, and were randomized 1:1 to receive:
Tecentriq monotherapy, until disease progression (or loss of clinical benefit, as assessed by the investigator), unacceptable toxicity or death; or
Cisplatin or carboplatin (per investigator discretion) combined with either pemetrexed (non-squamous) or gemcitabine (squamous), followed by maintenance therapy with pemetrexed alone (non-squamous) or best supportive care (squamous) until disease progression, unacceptable toxicity or death.
The primary efficacy endpoint was OS by PD-L1 subgroup (TC3/IC3-WT; TC2/3/IC2/3-WT; and TC1,2,3/IC1,2,3-WT), as determined by the SP142 assay test. Key secondary endpoints included investigator-assessed progression-free survival (PFS), objective response rate (ORR) and duration of response (DoR).
Tecentriq is a monoclonal antibody designed to bind with a protein called PD-L1. Tecentriq is designed to bind to PD-L1 expressed on tumor cells and tumor-infiltrating immune cells, blocking its interactions with both PD-1 and B7.1 receptors. By inhibiting PD-L1, Tecentriq may enable the re-activation of T cells. Tecentriq may also affect normal cells.
Source: Company Press Release