Liquid Biopsy IDs More NSCLC Mutations, Yields Patient Therapy Response in Study of Guardant Test

Excerpt:

“New data this week has added evidence for the value of blood-based cancer testing in non-small cell lung cancer, demonstrating in a cohort of about 300 that comprehensive liquid biopsy — in this case Guardant Health’s Guardant360 test — can help identify targeted mutations in more patients than tissue sequencing.

“The study also found that patients treated on the basis of blood-based test results respond to treatment similarly to those treated based on tissue test results.”

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FDA Approves Vizimpro for EGFR-Mutated Non-Small Cell Lung Cancer

Excerpt:

“The FDA approved dacomitinib for the first-line treatment of patients with metastatic non-small cell lung cancer whose tumors have EGFR exon 19 deletion or exon 21 L858R substitution mutations.

“Dacomitinib (Vizimpro, Pfizer) is a once-daily oral pan-human EGFR tyrosine kinase inhibitor.”

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Pembrolizumab Plus Chemotherapy Prolongs OS, PFS for Metastatic Lung Cancer

Excerpt:

“The addition of pembrolizumab to chemotherapy extended OS and PFS compared with chemotherapy alone among patients with metastatic, squamous, non-small-cell lung cancer, according to results of the randomized phase 3 KEYNOTE-407 trial presented at International Association for the Study of Lung Cancer’s World Conference on Lung Cancer.

“The double-blind study included 559 treatment-naive patients with metastatic, squamous NSCLC. Patients who had symptomatic central nervous system metastases, a history of noninfectious pneumonitis that required the use of glucocorticoids, active autoimmune disease or who were receiving systemic immunosuppressive treatment were excluded.”

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Repotrectinib Shows Promising Activity in ROS1+ NSCLC

Excerpt:

“Repotrectinib (TPX-0005) demonstrated a clinically meaningful and durable benefit across multiple doses in patients with ROS1 fusion–positive non–small cell lung cancer (NSCLC).

“Overall response rates (ORRs) were 80% for tyrosine kinase inhibitor (TKI)-naïve patients (95% CI, 44-97) and 18% for TKI-refractory patients (95% CI, 4-44), including 33% for those who received a dose of 160 mg once daily, according to findings from the ongoing phase I/II TRIDENT-1 study. Interim analysis results were presented at the 19th World Conference on Lung Cancer (WCLC).”

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LOXO-292 Safe, Effective for RET-Altered Non-Small Cell Lung Cancer

Excerpt:

“LOXO-292 appeared well tolerated and demonstrated antitumor activity among patients with heavily pretreated RET fusion-positive non-small cell lung cancer, according to updated interim results of a global, phase 1/phase 2 trial presented at International Association for the Study of Lung Cancer’s World Conference on Lung Cancer.

“Researchers reported initial clinical data from the LIBRETTO-001 dose escalation/expansion study of LOXO-292 (Loxo Oncology) — an oral and selective agent in clinical development for cancers that harbor abnormalities in the rearranged during transfection (RET) kinase — at ASCO Annual Meeting in June.”

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Novel Agent Active in ROS1-Mutant NSCLC

Excerpt:

“Three-fourths of patients with ROS1-positive non-small cell lung cancer (NSCLC) had objective responses lasting an average of 2 years with an investigational multikinase inhibitor, a preliminary trial showed.

“Overall, 41 of 53 patients responded to treatment with entrectinib, including 17 of 33 patients with central nervous system (CNS) metastases at baseline. Responses had a median duration of 24.6 months among patients without CNS metastases and 13.6 months among those with CNS metastases.”

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Poziotinib Shows Encouraging Activity Among Heavily Pretreated NSCLC Subgroup

Excerpt:

“Poziotinib (NOV120101, HM781-36B) demonstrated high antitumor activity in patients with metastatic, heavily pretreated EGFR and HER2 exon 20 mutant non–small cell lung cancer (NSCLC), according to phase II study results presented at the 19th World Conference on Lung Cancer (WCLC) in Toronto, Canada.

To date, the agent specifically induced a best response rate of 55%, including a 43% confirmed objective response rate (ORR) among evaluable patients with EGFR exon 20 mutant NSCLC in the study, said John V. Heymach, MD, PhD, who presented data of the investigator-initiated study of poziotinib in EGFR and HER 2-exon 20 mutant NSCLC (NCT03066206).”

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First-Line Atezolizumab Plus Chemotherapy Improves PFS for Lung Cancer

Excerpt:

“The addition of frontline atezolizumab to carboplatin or cisplatin plus pemetrexed improved PFS among patients with non-small cell lung cancer, according to interim results from a global phase 3 randomized trial presented at International Association for the Study of Lung Cancer’s World Conference on Lung Cancer.

“IMpower132 is an open-label study of atezolizumab (Tecentriq, Genentech) — a PD-L1 inhibitor — among 578 chemotherapy-naive patients with stage IV nonsquamous NSCLC. Exclusion criteria included EGFR or ALK mutations, untreated central nervous system metastases, autoimmune disease and prior exposure to immunotherapy.”

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Pembrolizumab Alone or With Chemotherapy for PD-L1–Positive NSCLC?

Excerpt:

“Researchers found that in patients with non–small-cell lung cancer (NSCLC) and a Tumor Proportion Score (TPS) ≥ 50, pembrolizumab plus chemotherapy failed to improve overall survival (OS) or progression-free survival (PFS) compared with pembrolizumab alone.

“Results from the study were presented in a poster presentation at the International Association for the Study of Lung Cancer (IASLC) 19th World Conference on Lung Cancer, held September 23–26 in Toronto.”

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