Skip to main navigation Skip to search Skip to main content

Molecular Tumor Board of the University Medical Center Groningen (UMCG-MTB): outcome of patients with rare or complex mutational profiles receiving MTB-advised targeted therapy

  • V. D. de Jager
  • , P. Plomp
  • , M. S. Paats
  • , S. van Helvert
  • , A. ter Elst
  • , A. van den Berg
  • , H. J. Dubbink
  • , W. H. van Geffen
  • , L. Zhang
  • , L. E.L. Hendriks
  • , T. J.N. Hiltermann
  • , B. I. Hiddinga
  • , L. B.M. Hijmering-Kappelle
  • , M. Jalving
  • , J. Kluiver
  • , B. Koopman
  • , M. van Kruchten
  • , E. M.J. van der Logt
  • , B. Piet
  • , J. van Putten
  • B. H. Reitsma, S. R. Rutgers, M. de Vries, J. A. Stigt, M. R. Groves, W. Timens, S. M. Willems, L. C. van Kempen, E. Schuuring*, A. J. van der Wekken*
*Corresponding author for this work
  • University of Groningen
  • University Medical Centre Groningen
  • Isala Clinics
  • Radboud University Medical Center
  • Medical Centre Leeuwarden
  • Maastricht University
  • GROW - School for Oncology and Reproduction
  • Department of Molecular Diagnostics
  • Martini Ziekenhuis
  • Department of Pulmonology
  • Scheper Hospital
  • Tjongerschans Ziekenhuis

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Web of Science)
53 Downloads (Pure)

Abstract

Purpose: 

Molecular tumor boards (MTBs) are considered beneficial for treatment decision making for patients with cancer with uncommon, rare, or complex mutational profiles. The lack of international MTB guidelines results in significant variation in practices and recommendations. Therefore, periodic follow-up is necessary to assess and govern MTB functioning. The objective of this study was to determine the effectiveness of MTB treatment recommendations for patients with rare and complex mutational profiles as implemented in the MTB of the University Medical Center Groningen (UMCG-MTB) in 2019-2020. 

Patients and methods: 

A retrospective follow-up study was carried out to determine the clinical outcome of patients with uncommon or rare (combinations of) molecular aberrations for whom targeted therapy was recommended as the next line of treatment by the UMCG-MTB in 2019 and 2020. 

Results: 

The UMCG-MTB recommended targeted therapy as the next line of treatment in 132 of 327 patients: 37 in clinical trials, 67 in the on-label setting, and 28 in the off-label setting. For on- and off-label treatment recommendations, congruence of recommended and received treatment was 85% in patients with available follow-up (67/79). Treatment with on-label therapy resulted in a response rate of 50% (21/42), a median progression-free survival (PFS) of 6.3 months [interquartile range (IQR) 2.9-14.9 months], and median overall survival (OS) of 15.8 months (IQR 6.4-34.2 months). Treatment with off-label therapy resulted in a response rate of 53% (8/15), a median PFS of 5.1 months (IQR 1.9-7.3 months), and a median OS of 17.7 months (IQR 5.1-23.7 months). 

Conclusion: 

Treatment with MTB-recommended next-line targeted therapy for patients with often heavily pretreated cancer with rare and complex mutational profiles resulted in positive overall responses in over half of patients. Off-label use of targeted therapies, for which there is sufficient rationale as determined by an MTB, is an effective treatment strategy. This study underlines the relevance of discussing patients with rare and complex mutational profiles in an MTB.

Original languageEnglish
Article number103966
JournalESMO Open
Volume9
Issue number11
DOIs
Publication statusPublished - Nov 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Fingerprint

Dive into the research topics of 'Molecular Tumor Board of the University Medical Center Groningen (UMCG-MTB): outcome of patients with rare or complex mutational profiles receiving MTB-advised targeted therapy'. Together they form a unique fingerprint.

Cite this