Impact of concomitant medication on recurrence, survival and tolerability of chemotherapy in early colon cancer patients – A post-hoc analysis of the PETACC 8 trial
Elisabeth Sophie Bergen , Clémence Canton , Mathieu Boulin , Karine Le Malicot , Jaafar Bennouna , Daniel Gonzalez , Laurent Mineur , Olivier Bouche , Côme Lepage , Julien Taieb
{"title":"Impact of concomitant medication on recurrence, survival and tolerability of chemotherapy in early colon cancer patients – A post-hoc analysis of the PETACC 8 trial","authors":"Elisabeth Sophie Bergen , Clémence Canton , Mathieu Boulin , Karine Le Malicot , Jaafar Bennouna , Daniel Gonzalez , Laurent Mineur , Olivier Bouche , Côme Lepage , Julien Taieb","doi":"10.1016/j.ejca.2025.115643","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Only few information is available about the impact of concomitant medication (CM) and comorbidities on the outcome of cancer patients and the tolerability of chemotherapy.</div></div><div><h3>Methods</h3><div>Patients of the phase III randomized trial PETACC8 had resection with curative intent of a stage III colon cancer (CC) and were treated with standard adjuvant fluoropyrimidine and oxaliplatin + /- cetuximab over 6 months. Information on CM intake has been gathered by study visits at inclusion as well as during chemotherapy. We investigated the association between number of CM as well as the 5 most frequently applied CM categories according to the WHO ATC classification system (gastro-esophageal reflux disease (GERD) treatment, anticoagulants, platelet aggregation inhibitors, cardiovascular and antidiabetic drugs) with outcome and tolerability.</div></div><div><h3>Results</h3><div>Among 2559 patients, median number of CM intake was 8 (range 0–25), with only 22 patients (0.9 %) without any CM intake. Anticoagulation treatment was the only CM category being significantly and independently associated with a shorter disease-free survival (DFS) (HR 1.29, 95 %CI 1.06–1.56, <em>p = 0.010</em>) as well as overall survival (OS) (HR 1.28, 95 %CI 1.02–1.59, <em>p = 0.032</em>). No association of number of CM (<5,5–10,>10) has been observed neither with DFS (ref.;HR 0.98;HR 1.17) nor OS (ref.;HR 0.98;HR 1.15) (<em>p > 0.05</em>). Patients with anticoagulants experienced significantly more grade 3/4 adverse events (AEs) (75.9 % vs 64.8 %, <em>p = 0.002</em>) and treatment discontinuations due to toxicity (17.7 % vs 10.8 %, <em>p = 0.005</em>) compared to patients without anticoagulants.</div></div><div><h3>Discussion</h3><div>Early CC patients with polypharmacy do not generally exhibit an impaired outcome. Anticoagulation was the only CM category associated with a shorter DFS and OS which might be a consequence of enhanced toxicities necessitating treatment adaptations in these patients.</div></div>","PeriodicalId":11980,"journal":{"name":"European Journal of Cancer","volume":"227 ","pages":"Article 115643"},"PeriodicalIF":7.1000,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Cancer","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0959804925004253","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Only few information is available about the impact of concomitant medication (CM) and comorbidities on the outcome of cancer patients and the tolerability of chemotherapy.
Methods
Patients of the phase III randomized trial PETACC8 had resection with curative intent of a stage III colon cancer (CC) and were treated with standard adjuvant fluoropyrimidine and oxaliplatin + /- cetuximab over 6 months. Information on CM intake has been gathered by study visits at inclusion as well as during chemotherapy. We investigated the association between number of CM as well as the 5 most frequently applied CM categories according to the WHO ATC classification system (gastro-esophageal reflux disease (GERD) treatment, anticoagulants, platelet aggregation inhibitors, cardiovascular and antidiabetic drugs) with outcome and tolerability.
Results
Among 2559 patients, median number of CM intake was 8 (range 0–25), with only 22 patients (0.9 %) without any CM intake. Anticoagulation treatment was the only CM category being significantly and independently associated with a shorter disease-free survival (DFS) (HR 1.29, 95 %CI 1.06–1.56, p = 0.010) as well as overall survival (OS) (HR 1.28, 95 %CI 1.02–1.59, p = 0.032). No association of number of CM (<5,5–10,>10) has been observed neither with DFS (ref.;HR 0.98;HR 1.17) nor OS (ref.;HR 0.98;HR 1.15) (p > 0.05). Patients with anticoagulants experienced significantly more grade 3/4 adverse events (AEs) (75.9 % vs 64.8 %, p = 0.002) and treatment discontinuations due to toxicity (17.7 % vs 10.8 %, p = 0.005) compared to patients without anticoagulants.
Discussion
Early CC patients with polypharmacy do not generally exhibit an impaired outcome. Anticoagulation was the only CM category associated with a shorter DFS and OS which might be a consequence of enhanced toxicities necessitating treatment adaptations in these patients.
期刊介绍:
The European Journal of Cancer (EJC) serves as a comprehensive platform integrating preclinical, digital, translational, and clinical research across the spectrum of cancer. From epidemiology, carcinogenesis, and biology to groundbreaking innovations in cancer treatment and patient care, the journal covers a wide array of topics. We publish original research, reviews, previews, editorial comments, and correspondence, fostering dialogue and advancement in the fight against cancer. Join us in our mission to drive progress and improve outcomes in cancer research and patient care.