Pyrazoles are organic compounds of the general formula C3H3N2H. It is a five-membered heterocycle consisting of three carbon atoms and two adjacent nitrogen atoms. As an H-bond-donating heterocycle, pyrazole has been used as a more lipophilic and metabolically more stable bioisomer of phenol. Pyrazoles have attracted more and more attention due to their broad spectrum of action and strong efficacy.
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Pfizer announced longer-term follow-up results of the Phase 3 CROWN study at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting. This study aims to evaluate the efficacy and safety of the third-generation anaplastic lymphoma kinase (ALK) inhibitor LORBRENA® (lorlatinib, available in Europe under the brand name LORVIQUA®) versus XALKORI® (crizotinib) in people with previously untreated, anaplastic lymphoma kinase (ALK)-positive advanced non-small cell lung cancer (NSCLC). The analysis showed that compared with the first-generation ALK inhibitors, the risk of disease progression or death in patients treated with lorlatinib continued to decrease by 81%, and the risk of brain metastasis progression was reduced by 94%.
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