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Related Concept Videos

Modern Molecular Taxonomy01:29

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Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
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Comprehensive molecular profiling in MOTION study.

Olesya A Kuznetsova1, Maxim V Ivanov2, Alexandra A Lebedeva3

  • 1Department of Chemotherapy, Federal State Budgetary Institution (N.N. Blokhin National Medical Research Center of Oncology) of the Ministry of Health of the Russian Federation, Moscow 115478, Russia; OncoAtlas LCC, Moscow 119049, Russia.

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Comprehensive molecular profiling (CMP) and molecularly matched therapy (MMT) improve outcomes in advanced solid tumors. MMT showed better response rates and progression-free survival, even for less actionable genomic alterations.

Keywords:
Comprehensive molecular profilingGenes alterationsPersonalized oncologySolid tumors

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Area of Science:

  • Oncology
  • Genomics
  • Personalized Medicine

Background:

  • The role of comprehensive molecular profiling (CMP) and molecularly matched therapy (MMT) in advanced solid tumors remains uncertain.
  • This study investigates the real-world application and impact of CMP and MMT in Russia.

Purpose of the Study:

  • To evaluate the clinical utility and outcomes associated with CMP and MMT in a Russian cohort of patients with advanced solid tumors.
  • To assess the implementation rates and reasons for non-adherence to MMT.

Main Methods:

  • A retrospective, multicenter study analyzed CMP data from 448 patients with advanced non-hematologic malignancies.
  • Genomic alterations (GA) were classified using the ESMO Scale for Clinical Actionability of molecular Targets (ESCAT).
  • Outcomes were compared between patients receiving MMT and those who did not.

Main Results:

  • Molecularly matched therapy (MMT) was recommended for 56.9% of patients but implemented in only 23.2%.
  • The MMT group demonstrated significantly higher objective response rates (61.3% vs. 37.1%) and improved progression-free survival compared to the non-MMT group.
  • Significant overall survival gains were observed with MMT, particularly for patients with ESCAT III-V genomic alterations, those with limited prior therapies, good performance status, and molecular tumor board discussion.

Conclusions:

  • MMT following CMP provides significant clinical benefits for selected patients with advanced solid tumors, including those with ESCAT III-V genomic alterations.
  • The findings support the integration of CMP and MMT into routine oncology practice for personalized cancer treatment.