US-FDA
The VENTANA ALK (D5F3) CDx Assay empowers your lab to provide timely results with a four-and-one-half hour run time using fully automated, ready-to-use reagents.
XALKORI® (crizotinib), ZYKADIA® (ceritinib), ALECENSA® (alectinib) and LORBRENA® (lorlatinib) are clinically effective and FDA approved for the treatment of patients with metastatic NSCLC whose tumors are ALK-positive as detected by an FDA-approved testing method for ALK.1,3,7
ALK FISH can present technical challenges in evaluating patient results and offers the potential for false negatives. Recent studies indicate that the VENTANA ALK (D5F3) CDx Assay stained with OptiView DAB Detection and Amplification is sensitive and specific for determination of ALK status, and a better alternative to ALK FISH. There are reports of ALK IHC-positive, FISH-negative patients benefitting from treatment with XALKORI, ZYKADIA, ALECENSA or LORBRENA8,9,10,11,12
Shown: comparison of VENTANA ALK (D5F3) Assay stained with OptiView DAB Detection and Amp vs. FISH testing for determining ALK status
In one study, van der Wekken et al. “…found that dichotomous ALK-IHC is superior to ALK-FISH on small biopsies and fine-needle aspirations (FNA) to predict tumor response and survival to crizotinib for patients with advanced NSCLC.”7
In one study, van der Wekken et al. “…found that dichotomous ALK-IHC is superior to ALK-FISH on small biopsies and fine-needle aspirations (FNA) to predict tumor response and survival to crizotinib for patients with advanced NSCLC.”7
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Clinical guidelines recommend routine testing for genetic mutations in all adenocarcinomas, including ALK EML4 gene rearrangement. Testing is recommended immediately after establishing histology and is required prior to initiating targeted therapy for a patient. The current approved methods for testing include IHC and FISH.
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