Bionano Announces Publication from Johns Hopkins School of Medicine Showing that OGM Outperformed Multiple Cytogenetic Assays in a Study of Bone and Soft Tissue Tumor Analysis
- In the largest study to date of bone and soft tissue tumors, OGM detected 100% of the variants found by multiple standard techniques, including karyotyping, fluorescent in-situ hybridization (FISH) & gene fusion assays
- OGM was also more sensitive, including detection of diagnostic or pathogenic variants missed by karyotype in 74% (14/19) of cases that failed or were negative by karyotyping
- When OGM results and next-generation sequencing (NGS) results were combined, diagnostic and pathogenic structural variants (SVs), copy number variants (CNVs), and/or single nucleotide variants (SNVs) were found in ~98% of cases, a substantially greater rate than when karyotyping, FISH and NGS are used
Key findings:
- OGM detected all variants revealed by conventional cytogenetics: OGM showed 100% concordance, identifying all pathogenic variants detected by standard of care cytogenetic methods. The specificity of OGM was assessed to be 100%, i.e. OGM correctly identified the same pathogenic SVs and CNVs detected by standard of care/routine cytogenetics (karyotyping and FISH).
- OGM detected pathogenic variants missed by karyotyping: In 74% of cases with normal or failed karyotype, OGM detected diagnostic or pathogenic SVs that were missed by karyotyping. Further, in 6 cases that failed to yield any karyotyping results due to culture failure, OGM detected pathogenic SVs in all of them. Variants found by OGM but missed by standard of care included the EWSR1::ETV1 fusion, which is a key molecular hallmark of clear cell sarcoma and helps to differentiate it from other soft tissue sarcomas and melanomas.
- OGM resolved complex cancer genomes: Study authors found that OGM data could re-characterized and better defined complex structural rearrangements including chromoanagenesis in 27% of cases and complex 3-6-way translocations in 15% of cases when compared to traditional cytogenetic methods.
- OGM combined with NGS found pathogenic variants in 98% of cases, a substantially greater rate than when karyotyping, FISH and NGS are used: The integrated approach of the combination of OGM and NGS resulted in the detection of pathogenic SVs and sequence variants in ~98% of cases. OGM was 100% concordant with NGS for aneuploidy detection.
- OGM findings have the potential to qualify subjects for targeted therapies that otherwise would not have been possible: The authors state that several of the OGM findings could result in the potential for these cases to qualify for either targeted treatments or clinical trials. For example, cases with potential to be treated by CDK4/6 inhibitors (palbociclib, ribociclib, abemaciclib), TRK inhibitors (larotrectinib, entrectinib), pan-FGFR inhibitors (erdafitinib or futibatinib) were highlighted.
The full research publication is available at: https://doi.org/10.1016/j.modpat.2024.100684
About Bionano
Bionano is a provider of genome analysis solutions that can enable researchers and clinicians to reveal answers to challenging questions in biology and medicine. The Company’s mission is to transform the way the world sees the genome through optical genome mapping (OGM) solutions, diagnostic services and software. The Company offers OGM solutions for applications across basic, translational and clinical research. The Company also offers an industry-leading, platform-agnostic genome analysis software solution, and nucleic acid extraction and purification solutions using proprietary isotachophoresis (ITP) technology. Through its
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Bionano’s products are for research use only and not for use in diagnostic procedures.
Forward-Looking Statements of
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “can,” “could,” “potential,” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) convey uncertainty of future events or outcomes and are intended to identify these forward-looking statements. Forward-looking statements include statements regarding our intentions, beliefs, projections, outlook, analyses or current expectations concerning, among other things, OGM’s utility for applications in bone and soft tissue cancers; OGM’s ability to detect SVs and CNVs concordant with traditional cytogenetic methods, including karyotyping and FISH; OGM’s ability to detect SVs and CNVs not detected with transitional cytogenetic methods; the utility and ability of OGM to detect diagnostically relevant or pathogenic SVs and CNVs; the ability of OGM and NGS in combination to detect more SVs than when combining karyotyping, FISH and NGS; the potential for OGM to be useful in qualifying subjects for targeted therapies or clinical trials; the utility of OGM for uses described in the publication referenced in this press release; the ability of OGM to re-characterized and better defined complex structural rearrangements when compared to traditional cytogenetic methods; OGM’s ability and utility for adoption across a wider spectrum of cancers including blood, bone and soft tissue cancers and the increase in adoption and utilization as an alternative to traditional cytogenetic methods; the utility of OGM for applications in areas reported in this press release; and other statements that are not historical facts. Each of these forward-looking statements involves risks and uncertainties. Actual results or developments may differ materially from those projected or implied in these forward-looking statements. Factors that may cause such a difference include the risks and uncertainties associated with: global and macroeconomic events, such as recent and potential bank failures, supply chain disruptions, global pandemics, inflation, and the ongoing conflicts between
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Source: Bionano Genomics