Interplay between sarcopenia, GDF-15, and the efficacy of nivolumab plus ipilimumab in patients with mismatch repair deficient metastatic colorectal cancer: final survival analysis of the phase II GERCOR NIPICOL study

  • 0Department of Medical Oncology, Univ Paris Est Creteil, INSERM, IMRB, AP-HP, Hopital Henri Mondor, Creteil, Île-de-France, France.

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Summary

This summary is machine-generated.

Nivolumab-ipilimumab shows durable efficacy in microsatellite instability-high/mismatch-repair deficient metastatic colorectal cancer. Growth differentiation factor 15 (GDF-15) is a promising biomarker for sarcopenia and survival outcomes in this patient group.

Area Of Science

  • Oncology
  • Immunotherapy
  • Gastroenterology

Background

  • Sarcopenia and elevated growth differentiation factor 15 (GDF-15) are associated with poor outcomes in cancer patients.
  • The efficacy of nivolumab-ipilimumab in chemoresistant metastatic colorectal cancer (mCRC) with microsatellite instability and/or mismatch-repair deficiency (MSI/dMMR) needs further investigation.
  • This study explores the interaction between sarcopenia, GDF-15, and nivolumab-ipilimumab treatment in this specific mCRC population.

Purpose Of The Study

  • To evaluate the efficacy of nivolumab-ipilimumab in patients with chemoresistant MSI/dMMR mCRC.
  • To assess the prognostic role of sarcopenia and GDF-15 levels in this patient cohort.
  • To investigate the relationship between GDF-15, sarcopenia, and treatment response.

Main Methods

  • The NIPICOL phase II trial included 57 patients with MSI/dMMR chemoresistant mCRC.
  • Patients received nivolumab-ipilimumab for 3 months, followed by nivolumab monotherapy for 9 months.
  • Sarcopenia was assessed by skeletal muscle mass index (SMI) via CT scan, and GDF-15 levels were measured at baseline and follow-up points.

Main Results

  • After a median follow-up of 60.4 months, 5-year progression-free survival (PFS) and overall survival (OS) rates were 65.3% and 73.3%, respectively.
  • High baseline GDF-15 levels (≥2500) were linked to poorer 3-year PFS (56.3% vs. 81.7%) and OS (61.4% vs. 84.5%).
  • Sarcopenia was present in 65.0% of patients at baseline; 55% of those with sarcopenia reversed it by 12 months, showing higher baseline GDF-15 and greater GDF-15 decrease.

Conclusions

  • Nivolumab-ipilimumab demonstrates sustained efficacy in chemoresistant MSI/dMMR mCRC after 5 years.
  • GDF-15 is a promising biomarker for predicting sarcopenia and survival in this population.
  • The findings support GDF-15 as a valuable prognostic marker in advanced colorectal cancer treated with immunotherapy.