scholarly journals Contribution of “complete response to treatment” to survival in patients with unresectable metastatic colorectal cancer: A retrospective analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259622
Author(s):  
Gulcan Bulut ◽  
Merve Guner Oytun ◽  
Elvina Almuradova ◽  
Mustafa Harman ◽  
Ruchan Uslu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Liver Metastasis ◽  
Bone Metastasis ◽  
Metastatic Colorectal Cancer ◽  
Systemic Treatment ◽  
Complete Response ◽  
Response To Treatment ◽  
Primary Surgery ◽  
Number Of Patients ◽  
Unresectable Metastatic Colorectal Cancer

Background The aim of the study is to reveal the contribution of complete response (CR) to treatment to overall survival (OS) in patients with unresectable metastatic colorectal cancer. In addition, to evaluate progression-free survival (PFS) in patients who attained CR to treatment and to examine the clinicopathologic features of the patient group with CR. Methods This article is a retrospective chart review. Patients diagnosed with metastatic colorectal cancer were divided into two groups. The systemic treatment was compared with the patients who received a full response according to the Response Evaluation Criteria in Solid Tumors (RECIST1.1) and those who did not attain CR (progression partial response and stable response) in terms of both PFS and OS data, and the effect of attaining CR to treatment on prognosis was evaluated. Results A total of 222 patients were included in the study. 202 of 222 patients could be evaluated in terms of complete response. All data from their files were tabulated and analyzed retrospectively. The mean age of diagnosis of the study group was 60.13 ± 12.52 years. The total number of patients who attained CR to treatment was 31 (15.3%); 171 (84.6%) patients did not attain CR. Patients who had a CR had longer median PFS times than patients who did not have a CR (15.2 vs. 7.4 months, P<0.001). Patients who had CR had longer median survival times than patients who did not have a CR (39.2 vs. 16.9 months, P<0.001). In subgroup patients who underwent primary surgery, the number of patients who attained CR was statistically higher compared with the number of patients who did not attain CR (p<0.001). Complete response was less common in the presence of liver metastasis and bone metastasis (p = 0.041 and p = 0.046, respectively), had a negative prognostic effect. In other words, 89.1% of patients with liver metastasis, 100.0% of patients with bone metastasis, and 88.7% of those who died did not have a CR to the treatment. According to multivariate analysis, CR to treatment, primary surgery, first-line chemotherapy (combination compared with fluoropyrimidine), and no bone metastasis were found to be predictors for OS. Conclusion Providing CR with systemic treatment in patients with unresectable metastatic colorectal cancer (mCRC) contributes to prognosis. The primary resection in our secondary acquisitions from the study, the number of metastatic regions and the combination therapy regimens also contributed to the prognosis.

Weekly bolus 5-fluorouracil and bevacizumab in the palliative treatment of metastatic colorectal cancer.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 736-736
Author(s):  
Michelle Jane Cook ◽  
Carole Connor ◽  
Mohammed Mojid Khan ◽  
Peter Denzil Correa
Keyword(s):  
Colorectal Cancer ◽  
Metastatic Colorectal Cancer ◽  
Palliative Treatment ◽  
Performance Status ◽  
Single Agent ◽  
Progression Free Survival ◽  
Complete Response ◽  
Response To Treatment ◽  
Uncontrolled Hypertension ◽  
Weekly Bolus

736 Background: Patients with metastatic colorectal cancer (mCRC) are often elderly with multiple co-morbidities making them poor candidates for combination chemotherapy. Evidence suggests significant benefit from the addition of Bevacizumab (Bev) to single agent fluoropyrimidine chemotherapy in the palliative treatment of mCRC. There is no current trial data to support use of weekly bolus 5-fluorouracil (5-FU) chemotherapy combined with Bev. We present details of our experience with this treatment regimen. Methods: Patients with mCRC treated with weekly bolus 5-FU 370 mg/m2and Bev 5mg/kg every 2 weeks (Weekly-5FU-Bev) as a new line of palliative treatment were reviewed. All were deemed unsuitable for Capecitabine. Data were collected retrospectively from patient records. Survival statistics were calculated from date of treatment initiation using Kaplan-Meier methods. Results: From 2012-2015, 21 patients were treated with Weekly-5FU-Bev. Median age was 80 years (range 56-90 years), 57.1% were performance status (PS) 0, 19% PS 1 and 23.8% PS 2. 61.9% patients were Ras wild-type. Median treatment duration to date is 20 weeks (range 4-117 weeks). Treatment was stopped in 8 due to progressive disease, 1 due to toxicity and 4 for other reasons. Treatment was generally well tolerated with significant fatigue the most commonly reported side effect in 24%. 3 patients experienced venous thrombo-embolic events, 1 developed uncontrolled hypertension and 1 suffered a non-fatal tumour perforation. There were no treatment related deaths. Clinical benefit rate determined by best response to treatment was impressive at 66.7% with 1 complete response, 1 partial response, 1 biochemical response (non-measurable disease) and 12 patients with stable disease. Median progression free survival was 9.3 months (95% CI 2.8-15.8 months). Median overall survival has not been reached with 15 patients still alive. Conclusions: Acknowledging the limitations of this retrospective analysis of a carefully selected patient group, Weekly-5FU-Bev appears to be well tolerated and efficacious in the treatment of elderly patients with mCRC and can be considered an option in patients unsuitable for or intolerant of Capecitabine.

scholarly journals Therapeutic Targeting of the Tumour Microenvironment in Metastatic Colorectal Cancer

2021 ◽  
Vol 22 (4) ◽  
pp. 2067
Author(s):  
Rhynelle S. Dmello ◽  
Sarah Q. To ◽  
Ashwini L. Chand
Keyword(s):  
Colorectal Cancer ◽  
Targeted Therapy ◽  
Liver Metastasis ◽  
Metastatic Colorectal Cancer ◽  
Tumour Microenvironment ◽  
Tumour Cells ◽  
Cellular Interactions ◽  
Circulating Tumour Cells ◽  
Therapeutic Targeting ◽  
Colorectal Cancer Patients

Liver metastasis is the primary contributor to the death of patients with colorectal cancer. Despite the overall success of current treatments including targeted therapy, chemotherapy, and immunotherapy combinations in colorectal cancer patients, the prognosis of patients with liver metastasis remains poor. Recent studies have highlighted the importance of the tumour microenvironment and the crosstalk within that determines the fate of circulating tumour cells in distant organs. Understanding the interactions between liver resident cells and tumour cells colonising the liver opens new therapeutic windows for the successful treatment of metastatic colorectal cancer. Here we discuss critical cellular interactions within the tumour microenvironment in primary tumours and in liver metastases that highlight potential therapeutic targets. We also discuss recent therapeutic advances for the treatment of metastatic colorectal cancer.

Maintenance of the nutritional prognostic index predicts survival in patients with unresectable metastatic colorectal cancer

2014 ◽  
Vol 141 (2) ◽  
pp. 307-313 ◽  
Author(s):  
Tetsuro Ikeya ◽  
Masatsune Shibutani ◽  
Kiyoshi Maeda ◽  
Kenji Sugano ◽  
Hisashi Nagahara ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Metastatic Colorectal Cancer ◽  
Prognostic Index ◽  
Unresectable Metastatic Colorectal Cancer

scholarly journals Long Term Real-World Outcomes of Trifluridine/Tipiracil in Metastatic Colorectal Cancer—A Single UK Centre Experience

2021 ◽  
Vol 28 (3) ◽  
pp. 2260-2269
Author(s):  
Daniel Tong ◽  
Lei Wang ◽  
Jeewaka Mendis ◽  
Sharadah Essapen
Keyword(s):  
Colorectal Cancer ◽  
Metastatic Colorectal Cancer ◽  
Real World ◽  
Systemic Treatment ◽  
Progression Free Survival ◽  
Median Number ◽  
Current Data ◽  
Real World Data

In the UK, Trifluridine-tipiracil (Lonsurf) is used to treat metastatic colorectal cancer in the third-line setting, after prior exposure to fluoropyrimidine-based regimes. Current data on the real-world use of Lonsurf lack long-term follow-up data. A retrospective evaluation of patients receiving Lonsurf at our Cancer Centre in 2016–2017 was performed, all with a minimum of two-year follow-up. Fifty-six patients were included in the review. The median number of cycles of Lonsurf administered was 3. Median follow-up was 6.0 months, with all patients deceased at the time of analysis. Median progression-free survival (PFS) was 3.2 months, and overall survival (OS) was 5.8 months. The median interval from Lonsurf discontinuation to death was two months, but seven patients received further systemic treatment and median OS gained was 12 months. Lonsurf offered a slightly better PFS but inferior OS to that of the RECOURSE trial, with PFS similar to real-world data previously presented. Interestingly, 12.5% had a PFS > 9 months, and this cohort had primarily left-sided and RAS wild-type disease. A subset received further systemic treatment on Lonsurf discontinuation with good additional OS benefit. Lonsurf may alter the course of disease for a subset of patients, and further treatment on progression can be considered in carefully selected patients.

Initial experience of TAS-102 chemotherapy in Australian patients with chemorefractory metastatic colorectal cancer.

2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 71-71
Author(s):  
Azim Jalali ◽  
Hui-Li Wong ◽  
Rachel Wong ◽  
Margaret Lee ◽  
Lucy Gately ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Febrile Neutropenia ◽  
Metastatic Colorectal Cancer ◽  
Real World ◽  
Performance Status ◽  
Progression Free Survival ◽  
Median Number ◽  
Ecog Performance Status ◽  
Number Of Patients

71 Background: For patients with refractory metastatic colorectal cancer (mCRC) treatment with Trifluridine/Tipiracil, also known as TAS-102, improves overall survival. In Australia, TAS-102 was initially made available locally through patients self-funding, later via an industry sponsored Medicine Access Program (MAP) and then via the Pharmaceutical Benefits Scheme (PBS). This study aims to investigate the efficacy and safety of TAS-102 in real world Australian population. Methods: A retrospective analysis of prospectively collected data from the Treatment of Recurrent and Advanced Colorectal Cancer (TRACC) registry was undertaken. The characteristics and outcomes of patients receiving TAS-102 were assessed and compared to all TRACC patients and those enrolled in the registration study (RECOURSE). Results: Across 13 sites, 107 patients were treated with TAS-102 (non-PBS n = 27, PBS n = 80), The median number of patients per site was 7 (range: 1-17). The median age was 60 years (range: 31-83), compared to 67 for all TRACC patients and 63 for RECOURSE. Comparing registry TAS-102 and RECOURSE patients, 75% vs 100% were ECOG performance status 0-1, 74% vs 79% had initiated treatment more than 18 months from diagnosis of metastatic disease and 39% vs 49% were RAS wild type. Median time on treatment was 10.4 weeks (range: 1.7-32). Median clinician assessed progression-free survival was 3.3 compared to RECIST defined PFS of 2 months in RECOURSE study, while median overall survival was the same at 7.1 months. Two patients (2.3%) had febrile neutropenia and there were no treatment-related deaths in the real-world series, where TAS102 dose at treatment initiation was at clinician discretion. In the RECOURSE study there was a 4% febrile neutropenia rate and one treatment-related death. Conclusions: TRACC registry patients treated with TAS102 were younger than both TRACC patients overall and those from the RECOURSE trial. Less strict application of RECIST criteria and less frequent imaging may have contributed to an apparently longer PFS. However overall survival outcomes achieved with TAS102 in real world patients were comparable to findings from this pivotal trial with an acceptable rate of major adverse events.

scholarly journals Treatments after Immune Checkpoint Inhibitors in Patients with dMMR/MSI Metastatic Colorectal Cancer

Cancers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 406
Author(s):  
Quang Loc Bui ◽  
Léo Mas ◽  
Antoine Hollebecque ◽  
David Tougeron ◽  
Christelle de la Fouchardière ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Disease Control ◽  
Metastatic Colorectal Cancer ◽  
Checkpoint Inhibitors ◽  
Progression Free Survival ◽  
Immune Checkpoints ◽  
Repair Deficiency ◽  
Improved Outcomes ◽  
Number Of Patients ◽  
Tumor Types

Background: Several studies reported improved outcomes with conventional treatments (CT, i.e., chemotherapy ± targeted therapy) administered after immune checkpoints inhibitors (ICI) in certain tumor types. No data are available concerning patients (pts) with metastatic colorectal cancer (mCRC) harboring mismatch repair deficiency/microsatellite instability (dMMR/MSI). We aimed to assess the outcomes of dMMR/MSI mCRC pts receiving CT after ICI failure. Methods: We conducted a retrospective multicenter study investigating the outcomes of all dMMR/MSI mCRC pts who received post-ICI CT between 2015 and 2020. Results: 31 pts (male 61%, median age 56 years) were included. ICI was an anti-PD(L)1 monotherapy in 71% of pts, and 61% received >2 lines before post-ICI CT. The overall response rate and disease control rate were 13% and 45%, with a median progression-free survival (PFS) and overall survival of 2.9 and 7.4 months, respectively. No association of the outcomes with either ICI efficacy or anti-angiogenic agents was observed. Prolonged PFS (range 16.1–21.3 months) was observed in 4 pts (13%). Conclusions: Although conducted on a limited number of patients, our results do not support an association of previous ICI treatment with an enhanced efficacy of CT in dMMR/MSI mCRC. However, prolonged disease control was observed in several cases, suggesting that some pts might derive an unexpected benefit from post-ICI treatments.

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