Systematic review and network meta-analysis of lorlatinib with comparison to other anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors (TKIs) as first-line treatment for ALK-positive advanced non-smallcell lung cancer (NSCLC)
Sai-Hong Ou , Hannah Kilvert , Jane Candlish , Ben Lee , Anna Polli , Despina Thomaidou , Hannah Le
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Abstract
Background
Next-generation anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors (TKIs) (alectinib, brigatinib, and lorlatinib) demonstrate superior progression-free survival (PFS) over chemotherapy or crizotinib as first-line (1L) treatment of ALK-positive advanced non-smallcell lung cancer (NSCLC).
Methods
We conducted network meta-analyses (NMAs) comparing the relative efficacy of lorlatinib with other ALK TKIs in this indication. Evidence identified from a systematic literature review and subsequent updates formed the basis of our evidence. The primary analysis investigated PFS by independent review committee (IRC) in the intent-to-treat (ITT) population. Secondary outcomes included PFS among subgroups, intracranial time to progression (IC TTP), adverse events, and discontinuation due to adverse events. For each of the outcomes, Bayesian proportional hazards NMAs estimated the relative treatment effects.
Additionally, we compared the design and results of eight published NMAs conducted for 1L ALK + advanced NSCLC to date.
Results
We formed a network of 10 trials, allowing indirect treatment comparisons. Two trials directly compared alectinib (600 mg twice daily) to crizotinib and one trial directly compared lorlatinib to crizotinib. The results of the NMA show that the hazard ratios (95 % credible interval [CrI]) for ITT PFS IRC were 0.61 (95 % CrI: 0.39, 0.97) when comparing lorlatinib with alectinib (600 mg twice daily) and 0.57 (95 % CrI: 0.35, 0.93) when comparing lorlatinib with brigatinib.
In the review of published NMAs, HRs for lorlatinib versus alectinib (600 mg twice daily) and brigatinib were compared. This comparison confirmed that each published NMA yielded similar results.
Conclusions
Our NMA analysis adds to existing findings and supplements data gaps from other published NMAs. Findings from eight published NMAs consistently supported lorlatinib as a clinically effective 1L treatment for ALK + advanced NSCLC patients compared to other TKIs.
期刊介绍：
Lung Cancer is an international publication covering the clinical, translational and basic science of malignancies of the lung and chest region.Original research articles, early reports, review articles, editorials and correspondence covering the prevention, epidemiology and etiology, basic biology, pathology, clinical assessment, surgery, chemotherapy, radiotherapy, combined treatment modalities, other treatment modalities and outcomes of lung cancer are welcome.
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