ArticleBritish journal of cancer2015
Combination of letrozole, metronomic cyclophosphamide and sorafenib is well-tolerated and shows activity in patients with primary breast cancer.
Article in British journal of cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.
- PET/CT-Based Response Evaluation in Cancer-a Systematic Review of Design Issues.Molecular imaging and biology · 2020Pooled it
- Clinical utilities of platelet-derived growth factor signaling in breast cancer.Pharmacological research · 2026Review
- Article
- Metronomic Chemotherapy for Metastatic Breast Cancer Treatment: Clinical and Preclinical Data between Lights and Shadows.Journal of clinical medicine · 2022Review
- Current Research Status of Metronomic Chemotherapy in Combination Treatment of Breast Cancer.Oncology research and treatment · 2022Review
- Quantification of Ki67 Change as a Valid Prognostic Indicator of Luminal B Type Breast Cancer After Neoadjuvant Therapy.Pathology oncology research : POR · 2021Article
- Metronomic Chemotherapy: A Systematic Review of the Literature and Clinical Experience.Journal of oncology · 2019Review
- Targeting protein quality control pathways in breast cancer.BMC biology · 2017Review
- Current achievements and future perspectives of metronomic chemotherapy.Investigational new drugs · 2017Review
- Pharmacokinetics of metronomic chemotherapy: a neglected but crucial aspect.Nature reviews. Clinical oncology · 2016Review
- Sorafenib in breast cancer treatment: A systematic review and overview of clinical trials.World journal of clinical oncology · 2016Article
- Trial Watch: Immunogenic cell death inducers for anticancer chemotherapy.Oncoimmunology · 2015Review
Corrections and comments
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Authors and funding
23 authors at 6 institutions in 3 countries.
Funding
Abstract
purposeTo assess whether the combination of letrozole, metronomic cyclophosphamide and sorafenib (LCS) is well tolerated and shows activity in primary breast cancer (BC).
methodsThirteen oestrogen receptor-positive, postmenopausal, T2-4, N0-1 BC patients received the LCS combination for 6 months. In these patients we examined the pharmacokinetics of sorafenib and cyclophosphamide, toxicity of the regimen, the clinical response to therapy and changes in the levels of biologically relevant biomarkers.
resultsAdequate plasma concentrations of sorafenib were achieved in patients when it was dosed in combination with L+C. The mean plasma concentrations of C were consistently lower following administration of LCS, compared with administration of L+C only. The most common drug-related grade 3/4 adverse events were skin rash (69.3%), hand-foot skin reaction (69.3%) and diarrhoea (46.1%). According to RECIST Criteria, a clinical complete response was observed in 6 of 13 patients. A significant reduction in tumour size, evaluated with MRI, was also observed between baseline and 14 days of treatment in all 13 patients (P=0.005). A significant reduction in SUV uptake, measured by (18)FDG-PET/CT, was observed in all patients between baseline and 30 days of treatment (P=0.015) and between baseline and definitive surgery (P=0.0002). Using modified CT Criteria, a response was demonstrated in 8 out of 10 evaluable patients at 30 days and in 11 out of 13 evaluable patients at the definitive surgery. A significant reduction in Ki67 expression was observed in all patients at day 14 compared with baseline (P<0.00001) and in 9 out of 13 patients at the definitive surgery compared with baseline (P<0.03). There was also a significant suppression of CD31 and VEGF-A expression in response to treatment (P=0.01 and P=0.007, respectively).
conclusionsThe LCS combination is feasible and tolerable. The tumour response and target biomarker modulation indicate that the combination is clinically and biologically active.
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