TY - JOUR
T1 - Circulating tumour DNA and risk of recurrence in patients with asymptomatic versus symptomatic colorectal cancer
AU - Øgaard, Nadia
AU - Jensen, Sarah Østrup
AU - Ørntoft, Mai-Britt Worm
AU - Demuth, Christina
AU - Rasmussen, Mads Heilskov
AU - Henriksen, Tenna Vesterman
AU - Nors, Jesper
AU - Frydendahl, Amanda
AU - Lyskjær, Iben
AU - Nesic, Marijana
AU - Therkildsen, Christina
AU - Kleif, Jakob
AU - Gögenur, Mikail
AU - Jørgensen, Lars Nannestad
AU - Vilandt, Jesper
AU - Seidelin, Jakob Benedict
AU - Gotschalck, Kåre Anderson
AU - Jaensch, Claudia
AU - Andersen, Berit
AU - Løve, Uffe Schou
AU - Thorlacius-Ussing, Ole
AU - Andersen, Per Vadgaard
AU - Kolbro, Thomas
AU - Monti, Alessio
AU - Kildsig, Jeppe
AU - Bondeven, Peter
AU - Schlesinger, Nis Hallundbæk
AU - Iversen, Lene Hjerrild
AU - Rasmussen, Morten
AU - Gögenur, Ismail
AU - Bramsen, Jesper Bertram
AU - Andersen, Claus Lindbjerg
N1 - © 2024. The Author(s).
PY - 2024/10/10
Y1 - 2024/10/10
N2 - BACKGROUND: Multiple initiatives aim to develop circulating tumour DNA (ctDNA) tests for early cancer detection in asymptomatic individuals. The few studies describing ctDNA-testing in both asymptomatic and symptomatic patients report lower ctDNA detection in the asymptomatic patients. Here, we explore if asymptomatic patients differ from symptomatic patients e.g. by including a 'low-ctDNA-shedding' and 'less-aggressive' subgroup.METHODS: ctDNA assessment was performed in two independent cohorts of consecutively recruited patients with asymptomatic colorectal cancer (CRC) (Cohort#1: n = 215, Cohort#2: n = 368) and symptomatic CRC (Cohort#1: n = 117, Cohort#2: n = 722).RESULTS: After adjusting for tumour stage and size, the odds of ctDNA detection was significantly lower in asymptomatic patients compared to symptomatic patients (Cohort#1: OR: 0.4, 95%CI: 0.2-0.8, Cohort#2: OR: 0.7, 95%CI: 0.5-0.9). Further, the recurrence risk was lower in asymptomatic patients (Cohort#1: sHR: 0.6, 95%CI: 0.3-1.2, Cohort#2: sHR: 0.6, 95%CI: 0.4-1.0). Notably, ctDNA-negative asymptomatic patients had the lowest recurrence risk compared to the symptomatic patients (Cohort#1: sHR: 0.2, 95%CI: 0.1-0.6, Cohort#2: sHR: 0.3, 95%CI: 0.2-0.6).CONCLUSIONS: Our study suggests that asymptomatic patients are enriched for a 'low-ctDNA-shedding-low-recurrence-risk' subgroup. Such insights are needed to guide ctDNA-based early-detection initiatives and should prompt discussions about de-escalation of therapy and follow-up for ctDNA-negative asymptomatic CRC patients.
AB - BACKGROUND: Multiple initiatives aim to develop circulating tumour DNA (ctDNA) tests for early cancer detection in asymptomatic individuals. The few studies describing ctDNA-testing in both asymptomatic and symptomatic patients report lower ctDNA detection in the asymptomatic patients. Here, we explore if asymptomatic patients differ from symptomatic patients e.g. by including a 'low-ctDNA-shedding' and 'less-aggressive' subgroup.METHODS: ctDNA assessment was performed in two independent cohorts of consecutively recruited patients with asymptomatic colorectal cancer (CRC) (Cohort#1: n = 215, Cohort#2: n = 368) and symptomatic CRC (Cohort#1: n = 117, Cohort#2: n = 722).RESULTS: After adjusting for tumour stage and size, the odds of ctDNA detection was significantly lower in asymptomatic patients compared to symptomatic patients (Cohort#1: OR: 0.4, 95%CI: 0.2-0.8, Cohort#2: OR: 0.7, 95%CI: 0.5-0.9). Further, the recurrence risk was lower in asymptomatic patients (Cohort#1: sHR: 0.6, 95%CI: 0.3-1.2, Cohort#2: sHR: 0.6, 95%CI: 0.4-1.0). Notably, ctDNA-negative asymptomatic patients had the lowest recurrence risk compared to the symptomatic patients (Cohort#1: sHR: 0.2, 95%CI: 0.1-0.6, Cohort#2: sHR: 0.3, 95%CI: 0.2-0.6).CONCLUSIONS: Our study suggests that asymptomatic patients are enriched for a 'low-ctDNA-shedding-low-recurrence-risk' subgroup. Such insights are needed to guide ctDNA-based early-detection initiatives and should prompt discussions about de-escalation of therapy and follow-up for ctDNA-negative asymptomatic CRC patients.
KW - Aged
KW - Asymptomatic Diseases
KW - Biomarkers, Tumor/blood
KW - Circulating Tumor DNA/blood
KW - Cohort Studies
KW - Colorectal Neoplasms/genetics
KW - Early Detection of Cancer/methods
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Neoplasm Recurrence, Local/genetics
UR - http://www.scopus.com/inward/record.url?scp=85206372236&partnerID=8YFLogxK
U2 - 10.1038/s41416-024-02867-5
DO - 10.1038/s41416-024-02867-5
M3 - Journal article
C2 - 39390251
SN - 0007-0920
VL - 131
SP - 1707
EP - 1715
JO - British Journal of Cancer
JF - British Journal of Cancer
ER -