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Lorviqua for treatment of adult patients with ALK-positive advanced non-small cell lung cancer, previously treated with one or more ALK tyrosine kinase inhibitors: approved in European Union


The European Commission ( EC ) has granted conditional marketing authorization for Lorviqua ( Lorlatinib, available in the U.S., Canada and Japan under the brand name Lorbrena ), as a monotherapy for the treatment of adult patients with anaplastic lymphoma kinase (ALK)-positive advanced non-small cell lung cancer ( NSCLC ) whose disease has progressed after Alectinib [ Alecensa ] or Ceritinib [ Zykadia ] as the first ALK tyrosine kinase inhibitor ( TKI ) therapy, or Crizotinib [ Xalkori ] and at least one other ALK TKI.
Lorviqua is a third-generation ALK TKI that was specifically developed to penetrate the blood brain barrier, in the presence or absence of resistance mutations.

The conditional marketing authorization was based on results from a non-randomized, dose-ranging and activity-estimating, multi-cohort, multi-center phase 1/2 study, B7461001, evaluating Lorlatinib for the treatment of patients with ALK-positive advanced NSCLC, who were previously treated with one or more ALK TKIs.
A total of 139 patients with ALK-positive metastatic NSCLC after treatment with at least one second-generation ALK TKI, such as Alectinib, Brigatinib [ Alumbrig ] or Ceritinib, were enrolled in the phase 2 portion of the study.
Among these patients, the overall response rate ( ORR ) for those who have been treated with one prior ALK TKI ( N=28 ) was 42.9% ( 95% CI: 24.5, 62.8 ) and 39.6% ( 95% CI: 30.5, 49.4 ) for those with two or more prior ALK TKI treatments ( N=111 ).
In the trial, 67% of patients had a history of brain metastases.

Among 295 ALK-positive or ROS1-positive metastatic NSCLC patients who received Lorlatinib 100 mg once daily in study B7461001, the most common ( greater than or equal to 20% ) adverse reactions were hypercholesterolemia ( 84.4% ), hypertriglyceridemia ( 67.1% ), edema ( 54.6% ), peripheral neuropathy ( 47.8% ), cognitive effects ( 28.8% ), fatigue ( 28.1% ), weight increased ( 26.4% ), arthralgia ( 24.7% ), mood effects ( 22.7% ) and diarrhea ( 22.7% ).

Conditional approval is granted to a medicinal product that fulfils an unmet medical need, where the benefit-risk balance is positive and the benefit of the product’s immediate availability outweighs the risk of less comprehensive data than normally required.
Under the provisions of the conditional approval, Pfizer will provide additional data from the post-marketing studies, including the phase 3 CROWN study of Lorlatinib versus Crizotinib in the first-line treatment of patients with ALK-positive NSCLC, which is currently ongoing. ( Xagena )

Source: Pfizer, 2019

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