“On November 2, 2018, the Food and Drug Administration granted accelerated approval to lorlatinib (LORBRENA, Pfizer, Inc.) for patients with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) whose disease has progressed on crizotinib and at least one other ALK inhibitor for metastatic disease or whose disease has progressed on alectinib or ceritinib as the first ALK inhibitor therapy for metastatic disease.
“Approval was based on a subgroup of 215 patients with ALK-positive metastatic NSCLC, previously treated with one or more ALK kinase inhibitors, enrolled in a non‑randomized, dose-ranging and activity-estimating, multi‑cohort, multicenter study (Study B7461001; NCT01970865). The major efficacy measures were overall response rate (ORR) and intracranial ORR, according to RECIST 1.1, as assessed by an independent central review committee.”
“Adult patients with ALK-positive, locally advanced or metastatic non–small cell lung cancer (NSCLC) who had not received a prior ALK inhibitor experienced a more than 50% reduction in the risk of disease progression or death with treatment with brigatinib (Alunbrig), compared with the first-line standard of care, crizotinib.
“Brigatinib demonstrated superior progression-free survival (PFS) compared with crizotinib, corresponding to a 51% reduction in the risk of disease progression or death (HR, 0.49; 95% CI, 0.33-74; P = .0007), according to first interim analysis results presented at the 19th World Conference on Lung Cancer and simultaneously published in the New England Journal of Medicine.”
“Brigatinib conferred substantial intracranial responses and durable PFS among patients with brain metastases and ALK-positive, non-small cell lung cancer previously treated with crizotinib, according to ongoing study results.
” ‘Crizotinib [Xalkori; Pfizer, EMD Serono], the first licensed ALK inhibitor, is very active but has clear central nervous system liability from poor CNS penetration. All of the next-generation ALK inhibitor drugs have started to show CNS efficacy consistent with their superior activity in the brain compared with crizotinib,’ D. Ross Camidge, MD, PhD, director of thoracic oncology at University of Colorado, told HemOnc Today. ‘The whole clinical trials field has had to evolve around these events in terms of how we should capture and present CNS data. Brigatinib [Alunbrig; Takeda Oncology, Ariad] was one of the drugs that helped with this.’ ”
“Updated results of the global phase III ALEX trial comparing alectinib with crizotinib as first-line treatment against ALK-positive non-small cell lung cancer show a median progression-free survival (PFS) of 34.8 months in 152 patients treated with alectinib versus 10.9 months in 151 patients treated with crizotinib.
” ‘Think of it like a horse race, only it’s not about who crosses the finish line first, but how far the horses can run,’ says D. Ross Camidge, MD, Ph.D., the Joyce Zeff Chair in Lung Cancer Research at the University of Colorado Cancer Center, director of Thoracic Oncology at the CU School of Medicine, and the study’s first author. ‘In this trial, it’s as if half of the people “riding” crizotinib had exhausted their horses at about 11 months. For patients on alectinib, when this trial first started reporting data last year, more than half were still on their horses, still running. Now enough time has elapsed to estimate the median performance of these alectinib ‘horses’ more accurately.’ ”
“The results reveal that 152 patients treated with alectinib showed a median progression-free survival (PFS) of 34.8 months compared with just 10.9 months in the 151 patients who were treated with crizotinib.”
“On February 12, the U.S. Food and Drug Administration (FDA) accepted and granted Priority Review to Pfizer’s new drug application for lorlatinib. The Prescription Drug User Fee Act goal date for a decision by the FDA is in August 2018.
“Lorlatinib is an investigational, anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitor for the treatment of patients with ALK-positive metastatic non–small cell lung cancer (NSCLC) previously treated with one or more ALK tyrosine kinase inhibitors. It has been shown to be highly active in preclinical lung cancer models harboring chromosomal rearrangements of both ALK and ROS1. Lorlatinib was specifically designed to inhibit tumor mutations that drive resistance to other ALK inhibitors and to penetrate the blood-brain barrier.”
“Roche (SIX: RO, ROG; OTCQX: RHHBY) today announced that the US Food and Drug Administration (FDA) approved the supplemental New Drug Application (sNDA) for Alecensa® (alectinib) for the treatment of people with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) as detected by an FDA-approved test. The approval is based on results from the phase III ALEX study, which showed Alecensa significantly reduced the risk of disease worsening or death (progression-free survival, PFS) by 47% (HR=0.53, 95% CI: 0.38, 0.73, p<0.0001) compared to crizotinib as assessed by independent review committee (IRC). Median PFS was 25.7 months (95% CI: 19.9, not estimable) for people who received Alecensa compared with 10.4 months (95% CI: 7.7, 14.6) for people who received crizotinib. The safety profile of Alecensa was consistent with that observed in previous studies. The study also showed that Alecensa significantly reduced the risk of the cancer spreading to or growing in the brain or central nervous system (CNS) compared to crizotinib by 84% (HR=0.16, 95% CI: 0.10, 0.28, p<0.0001). This was based on a time to CNS progression analysis in which there was a lower risk of progression in the CNS as the first site of disease progression for people who received Alecensa (12%) compared to people who received crizotinib (45%).”
“While several targeted therapies have emerged in recent years for treatment of non-small cell lung cancer (NSCLC) carrying the anaplastic lymphoma kinase (ALK) gene fusion, development of resistance to ALK inhibitors is an increasing problem. Furthermore, only one tyrosine kinase inhibitor (TKI), crizotinib, is currently approved for patients with ROS proto-oncogene 1 (ROS1) rearrangements. Lorlatinib, a novel, highly selective ALK and ROS1 targeting third-generation TKI has shown preclinical activity against known ALK resistance mutations and can penetrate the central nervous system (CNS), a common site of metastasis in ALK-positive or ROS1-positive NSCLC.”
“Pfizer Inc. (NYSE:PFE) today announced full results from the Phase 2 clinical trial of the investigational, next-generation tyrosine kinase inhibitor lorlatinib that exhibited clinically meaningful activity against lung tumors and brain metastases in a range of patients with ALK-positive and ROS1-positive advanced non-small cell lung cancer (NSCLC), including those who were heavily pretreated. Further, side effects were generally manageable and primarily mild to moderate in severity. The results [Abstract #OA 05.06] were presented by Professor Benjamin Solomon, lead investigator and medical oncologist at Peter MacCallum Cancer Centre, Melbourne, Australia, today during an oral session at the International Association for the Study of Lung Cancer (IASLC) 18th World Conference on Lung Cancer (WCLC) in Yokohama, Japan. Pfizer will also present data from several other lung cancer clinical programs.”