FGFR CDx Molecular Analysis is the first companion diagnostic test for identification of fibroblast growth factor receptor alterations in urothelial carcinoma. Patients with FGFR alterations identified by this test may be eligible for treatment with BALVERSA™ (erdafitinib) which is indicated for patients with locally advanced or metastatic urothelial carcinoma who have progressed on platinum-based chemotherapy.1

FGFR plays an important role in cell development, differentiation, survival, migration, angiogenesis and carcinogenesis2. FGFR aberrations can contribute to carcinogenic events by influencing PI3K/AKT, STAT and RAS/MAPK pathways3. FGFR3 abnormalities accounts for ~70% of non-muscle-invasive bladder cancers and 10-20% of invasive bladder cancers4. FGFR3 is considered as an important therapeutic target in both non-invasive and invasive UC5.

Alternative Name: therascreen® FGFR RGQ RT-PCR Kit

References

  1. FDA approves first targeted therapy for metastatic bladder cancer. Office Commissioner – https://www.fda.gov/news-events/press-announcements/fda-approves-first-targeted-therapy-metastatic-bladder-cancer. Accessed May 9, 2019.
  2. Helsten T, Elkin S, Arthur E, Tomson BN, Carter J, Kurzrock R. The FGFR Landscape in Cancer: Analysis of 4,853 Tumors by Next-Generation Sequencing. Clinical Cancer Research. 2015;22(1):259-267. doi:10.1158/1078-0432.ccr-14-3212.
  3. Costa R, Carneiro B, Taxter T, et.al. FGFR3-TACC3 fusion in solid tumors: mini review. Oncotarget. 2016;7(34):55924-55938. doi: 10.18632/oncotarget.10482.
  4. Chae YK, Ranganath K, Hemmerman P, et.al. Inhibition of the fibroblast growth factor receptor (FGFR) pathway: the current landscape and barriers to clinical application. Oncotarget. 2017;8(9):16052-16074. doi: 10.18632/oncotarget.14109.
  5. Williams S, Hurst C and Knowles M. Oncogenic FGFR3 gene fusions in bladder cancer. Human Molecular Genetics. 2013;22(4):795-803. doi:10.1093/hmg/dds486

Amplification of the ERBB2 gene (encoding for HER2 protein) is detected by fluorescent in
situ hybridization (FISH) in human breast and esophagogastric cancer tissue specimens.

The Bladder Cancer FISH test designed to detect aneuploidy for chromosomes 3, 7 and 17 and the 9p21 locus in urine specimens. This test is an aid for initial diagnosis of bladder carcinoma in patients with hematuria and subsequent monitoring for tumor recurrence in patients previously diagnosed with bladder cancer.

PD-L1 IHC 22C3 is a qualitative immunohistochemical assay using Monoclonal Mouse Anti-PD-L1, Clone 22C3 intended for use in the detection of PD-L1 protein. PD-L1 IHC 22C3 is indicated as an aid in identifying NSCLC patients for treatment with KEYTRUDA® (pembrolizumab).

The presence of any of 59 possible EGFR mutations in exons 18-21 (including the T790M mutation in exon 20) is identified by real-time polymerase chain reaction.

Histologic examination of prostate tissue. Surgical pathology level 4 (per individually identified specimen site), with microscopic interpretation and report.

Histologic examination of bladder tissue. Surgical pathology level 4, with microscopic interpretation and report.

The Sezary Syndrome Panel by flow cytometry aids in the diagnosis of Sezary syndrome and mycosis fungoides. Available in conjunction with, or after, a Diagnostic/Prognostic Profile result has been reported by Genoptix or client. Markers tested by flow cytometry include CD3, CD4, CD7, CD8, CD26 and
CD45

PTEN (10q23.32) and TMPRss2-ERG (21q22.2) loci are assessed by fluorescent in situ hybridization (FISH) using three-color MetaSystems XCyting locus-specific probes. Aberrations of ERG (deletion, copy number increase, and rearrangement) have been reported in prostate cancer. Deletions of PTEN have been reported in prostate cancer.

Ki67 is a nuclear protein expressed in proliferating cells, which is detected by a primary monoclonal rabbit anti-human Ki67 antibody (clone 30-9). Ki67 expression level is determined by the percentage of appropriately stained tumor cells.