ArticleCancers2025
Real-World Study of Patients with Metastatic Colorectal Cancer and Long-Term Response to Regorafenib in the USA.
Article in Cancers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Synergistic mechanisms and clinical translation of regorafenib combination therapies.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Review
- CEA and CA-19-9 Dynamics Associate with Survival in Regorafenib-Treated Metastatic Colorectal Cancer: A Real-World Analysis.Journal of clinical medicine · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
backgroundSeveral narrative reports document long-term responses to regorafenib treatment in patients with metastatic colorectal cancer (mCRC). However, no large-scale study has assessed long-term responses and there are no established predictors of potential long-term benefit. We carried out an observational study of characteristics of patients treated in real-world clinical practice in the USA using duration of treatment (DoT) as a surrogate for treatment response. PATIENTS AND
methodsThis retrospective cohort study used a de-identified electronic health record-derived database and included patients aged ≥18 years with mCRC who initiated regorafenib monotherapy between 1 July 2013 and 30 June 2023. Patient cohorts were defined by DoT ≥4 months (LTR4), ≥5 months (LTR5), or ≥6 months (LTR6) and are not mutually exclusive.
resultsOf 2444 patients who initiated regorafenib monotherapy during the study, those with long-term response were analyzed: 544 had LTR4 (22%), 367 had LTR5 (15%), and 250 had LTR6 (10%). Most patients with long-term responses had left-sided tumors (65-70%), Eastern Cooperative Oncology Group performance status of 0/1 (67-68%), and liver metastases (55-61%) and had received prior bevacizumab treatment (60-67%). The median age in each group was 66 years, and patients most frequently initiated regorafenib as third-line treatment (31-33%). Median time to regorafenib discontinuation was 6.0-9.3 months among long-term responders.
conclusionsMost patients with long-term responses to regorafenib had favorable performance status at treatment initiation, left-sided tumors, and liver metastases and had received prior bevacizumab treatment. The study highlights that patients in the real-world setting were able to tolerate and maintain long-term responses to regorafenib treatment.
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Registered trials
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