ArticleClinical and translational radiation oncology2026
Clinical and treatment-related predictors of complete response after total neoadjuvant therapy for rectal cancer in a large multicenter analysis.
Article in Clinical and translational radiation oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Four-Year Survival Outcomes of Personalized Total Neoadjuvant Therapy Versus Chemotherapy During the 'Wait Period' Versus Standard Chemoradiotherapy for Locally Advanced Rectal Cancer.Journal of gastrointestinal cancer · 2026Article
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30 authors.
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Abstract
Introduction: Complete response (CR) after total neoadjuvant therapy (TNT) in rectal cancer is linked to favorable local control and enables non-operative management (NOM). Achieving high CR rates is crucial. As no standard TNT protocol exists, we aimed to assess the impact of clinical factors and different protocols on CR rates. Methods: Rectal cancer patients undergoing TNT with curative intent between 2015 and 2024 were included in this retrospective multicenter analysis (DRKS00033000). The primary endpoint was CR. Predefined clinical and therapeutic variables were treated as covariates and evaluated as potential predictors of CR in a multivariable logistic regression model. Results: Among 245 included patients (181 men) with a median age of 62 (Q1-Q3: 54-67) years, 113 (46.1%) reached a CR. Of those, 69 (28.2%) were active smokers. Short-course radiotherapy (SCRT) was applied in 107 (43.7%) patients. Chemoradiotherapy with pyrimidine-based monotherapy or concomitant oxaliplatin was used in 65 (26.5%) and 73 (29.8%) of patients, respectively. A median of 8 (Q1-Q3: 6-9) cycles of consolidation chemotherapy was administered. The CR likelihood increased with each additional chemotherapy cycle (OR 1.19, 95%-CI: 1.04-1.38). SCRT was associated with lower CR rates (OR 0.34, 95%-CI: 0.16-0.74) compared with concomitant pyrimidine-based chemoradiotherapy. Adding concomitant oxaliplatin to 5-FU did not further increase CR rates (OR 1.06, 95%-CI: 0.50-2.27). CR was more likely in non-smokers (OR 1.92, 95%-CI: 1.03-3.57). ESMO tumor classification and treatment duration were not associated with CR. Conclusion: More intensive TNT protocols were associated with higher CR rates. Smoking cessation may be beneficial but requires external validation.
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