Early On-treatment C-reactive Protein and Its Kinetics Predict Survival and Response in Recurrent And/or Metastatic Head and Neck Cancer Patients Receiving First-line Pembrolizumab
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Purpose: First-line immune checkpoint blockade has improved the prognosis of recurrent and/or metastatic head and neck squamous cell carcinoma (R/M HNSCC), but response rates remain low. In this study, we aimed to investigate the prognostic value of CRP and its early kinetics to predict response and survival in R/M HNSCC.
Methods: A total of 87 patients who received first-line pembrolizumab for R/M HNSCC were analyzed. Three-fold cross-validation was used to estimate cut-off points of CRP at baseline and on-treatment (day 40 ± 10). Treatment response and survival were analyzed according to early CRP kinetics. The neutrophil-to-lymphocyte ratio (NLR) was used as a benchmark for the prognostic performance of CRP.
Results: On-treatment CRP below 2 mg/dl, 4x the upper limit of normal (ULN), was associated with increased overall survival (OS), while on-treatment CRP below 3 mg/dl (6x ULN) was correlated with a higher disease control rate (DCR) and increased progression-free survival (PFS). CRP flare-responders and CRP responders showed a higher DCR and longer PFS than CRP non-responders. An NLR above 6 was a negative prognosticator for progression. In multivariable analysis, on-treatment CRP prevailed as the only significant prognosticator for OS (HR: 4.97, CI95%: 2.18-11.32, p < 0.001) and PFS (HR: 2.07, CI95%: 1.07-3.99, p = 0.030).
Conclusion: On-treatment CRP was identified as a prognostic biomarker for objective response and survival in R/M HNSCC patients receiving first-line pembrolizumab and could be easily incorporated into clinical practice as a widely available and cost-effective biomarker.
Ueda N, Kuroki M, Shibata H, Matsubara M, Akita S, Yamada T Cancers (Basel). 2024; 16(23).
PMID: 39682242 PMC: 11640115. DOI: 10.3390/cancers16234056.
Kasahara Y, Saijo K, Ueta R, Numakura R, Sasaki K, Yoshida Y Sci Rep. 2024; 14(1):28255.
PMID: 39548176 PMC: 11568322. DOI: 10.1038/s41598-024-79130-7.
Tomisaki I, Harada M, Sakano S, Terado M, Hamasuna R, Harada S Oncol Lett. 2024; 28(6):603.
PMID: 39525607 PMC: 11544533. DOI: 10.3892/ol.2024.14736.
Wang Q, Yin X, Wang S, Lu H Front Oncol. 2024; 14:1429559.
PMID: 39132507 PMC: 11310145. DOI: 10.3389/fonc.2024.1429559.
Jungbauer F, Scherl C, Rotter N, Affolter A, Lammert A, Seiz E Cancers (Basel). 2024; 16(13).
PMID: 39001486 PMC: 11240492. DOI: 10.3390/cancers16132424.