scholarly journals The Influence of Adjuvant Chemotherapy Dose Intensity on Five-Year Outcomes in Resected Colon Cancer: A Single Centre Retrospective Analysis

2021 ◽  
Vol 28 (5) ◽  
pp. 4031-4041
Author(s):  
Suganija Lakkunarajah ◽  
Daniel A. Breadner ◽  
Hanbo Zhang ◽  
Ellen Yamanaka ◽  
Andrew Warner ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Dose Intensity ◽  
Primary Objective ◽  
Single Centre ◽  
Significant Difference ◽  
Chemotherapy Dose ◽  
Resected Stage ◽  
Stage Ii Colon Cancer ◽  
Chemotherapy Dose Intensity

There is evidence that achieving a dose intensity > 80% in adjuvant colon cancer treatment improves survival. In total, 192 consecutive patients with resected stage III and high-risk stage II colon cancer that received adjuvant chemotherapy were retrospectively analyzed. Patients who received at least 6 weeks of adjuvant therapy were included. The primary objective was to assess the influence of dose index (DI) and relative dose intensity (RDI) on DFS and OS at 3 and 5 years in patients receiving fluorouracil-based doublet therapy with oxaliplatin (FOLFOX)(5-FU and oxaliplatin assessed separately), or capecitabine monotherapy. In the capecitabine group, DFS rates for 3 and 5 years were 66.7% and 57.6%, respectively, while OS rates were 80.3% and 66.7%, respectively. Those who received FOLFOX had DFS rates of 76.9% and 71.2% at 3 and 5 years, respectively. OS rates were 86.4% and 76.7% at 3 and 5 years, respectively. Median RDI was 73.8% for capecitabine and 76.3% and 85.6% for the oxaliplatin and 5-FU components respectively. Based on a multivariate analysis in patients receiving FOLFOX, those with an oxaliplatin DI > 80% had improvements in DFS and OS compared to those with an oxaliplatin DI of ≤ 80%. Otherwise, there was no significant difference in DFS or OS when comparing patients who achieved an RDI or a DI of above versus below 80% in the patients receiving adjuvant chemotherapy for resected colon cancer.

Age Determines Adjuvant Chemotherapy Use in Resected Stage II Colon Cancer

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Brendan L. Hagerty ◽  
John G. Aversa ◽  
Dana A. Dominguez ◽  
Jeremy L. Davis ◽  
Jonathan M. Hernandez ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Stage Ii ◽  
Resected Stage ◽  
Stage Ii Colon Cancer

Duration of Oxaliplatin-Containing Adjuvant Therapy for Stage III Colon Cancer: ASCO Clinical Practice Guideline

2019 ◽  
Vol 37 (16) ◽  
pp. 1436-1447 ◽  
Author(s):  
Christopher Lieu ◽  
Erin B. Kennedy ◽  
Emily Bergsland ◽  
Jordan Berlin ◽  
Thomas J. George ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Expert Panel ◽  
Disease Free Survival ◽  
Evidence Base ◽  
Stage Iii ◽  
Risk Of Recurrence ◽  
Stage Iii Colon Cancer ◽  
Significant Difference ◽  
Resected Stage

PURPOSE To develop recommendations for duration of adjuvant chemotherapy with a fluoropyrimidine and oxaliplatin for patients with completely resected stage III colon cancer based on the results of trials of 3 months compared with 6 months of treatment. METHODS ASCO convened an Expert Panel and conducted a systematic review of relevant studies. The guideline recommendations were based on the review of evidence by the Expert Panel. RESULTS Pooled data from the six International Duration Evaluation of Adjuvant Chemotherapy (IDEA) Collaboration randomized controlled trials comprise the evidence base for these guideline recommendations. RECOMMENDATIONS The recommendations for therapy duration apply to patients with completely resected stage III colon cancer who are being offered adjuvant chemotherapy with oxaliplatin and a fluoropyrimidine. Recommendations are informed by the findings of a recent pooled analysis of clinical trials that compared 6 months versus 3 months of oxaliplatin-based chemotherapy. For patients at a high risk of recurrence (T4 and/or N2), adjuvant chemotherapy should be offered for a duration of 6 months. For patients at a low risk of recurrence (T1, T2, or T3 and N1), either 6 months of adjuvant chemotherapy or a shorter duration of 3 months may be offered on the basis of a potential reduction in adverse events and no significant difference in disease-free survival with the 3-month regimen. In determining duration of therapy, the Expert Panel recommends a shared decision-making approach, taking into account patient characteristics, values and preferences, and other factors and including a discussion of the potential for benefit and risks of harm associated with treatment duration. Additional information is available at www.asco.org/gastrointestinal-cancer-guidelines .

A prospective randomized phase III trial of adjuvant chemotherapy with 5-fluorouracil (5-FU) and leucovorin (LV) in patients with stage II colon cancer

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 4052-4052
Author(s):  
W. Schippinger ◽  
H. Samonigg ◽  
R. Greil ◽  
J. Tschmelitsch ◽  
G. Steger ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Primary Endpoint ◽  
Lower Risk ◽  
Stage Ii ◽  
Phase Iii ◽  
Disease Relapse ◽  
Chi Square ◽  
Significant Difference ◽  
Stage Ii Colon Cancer

4052 Background: Whereas several studies showed adjuvant chemotherapy to improve survival of patients with stage III colon cancer, survival benefit from adjuvant treatment in patients with stage II disease is a matter of controversy. Methods: Patients with curatively resected stage II colon cancer (T3–4, N0, M0) according to UICC were randomized to either adjuvant chemotherapy with 5-FU/LV (100 mg/m2 LV + 450 mg/m2 5-FU weekly, w 1–6, in 8 w cycles x 7) or surveillance only. Primary endpoint was overall survival (OS) with 636 patients originally planned to demonstrate a difference in OS of 10% with 85% power and alfa =0.05 in a final analysis 7 years after study initiation. After accrual of 535 patients between 11/1993 and 6/2003, recruitment was stopped ahead of schedule for low accrual rates. Results: 505 patients were eligible and evaluable for analyses. After a median follow-up of 96 months, 56 (21.8%) patients have died in the 5-FU/LV arm and 58 (23.4%) in the surveillance arm. There was no statistically significant difference in OS between the two treatment arms (HR 1.137, 95% CI 0.787–1.641, p=0.4947, chi square), thus the primary endpoint of the study was not met. Disease relapse was documented in 35 (13.6%) patients of the chemotherapy arm and in 48 (19.4%) patients of the control arm. The relative risk for disease relapse was higher for patients in the surveillance arm compared to patients in the 5-FU/LV arm, however, this difference was statistically not significant (HR 1.506, 95% CI 0.974–2.328, p=0.0657, chi square). Subgroup analysis including in the chemotherapy arm only patients who received at least one cycle of 5-FU/LV (n=250), showed a statistically significantly lower risk for relapse in patients treated with 5- FU/LV (HR 1.559, 95% CI 1.001–2.429, p=0.0477, chi square). Conclusions: Results of this trial demonstrate a trend to a lower risk for relapse in patients treated with adjuvant 5-FU/LV for stage II colon cancer. However, adjuvant chemotherapy did not significantly improve DFS and OS. No significant financial relationships to disclose.

Adjuvant chemotherapy with uracil-tegafur (UFT) for stage III colorectal cancer: Final results of randomized trials by the National Surgical Adjuvant Study of Colorectal Cancer (NSAS-CC)

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 4049-4049 ◽  
Author(s):  
T. Hamaguchi ◽  
K. Shirao ◽  
Y. Moriya ◽  
S. Yoshida ◽  
S. Kodaira ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Hazard Ratio ◽  
Stage Iii ◽  
Control Group ◽  
Significant Difference ◽  
Resected Stage

4049 Background: In the latter 1990s, no consensus was reached as to whether adjuvant chemotherapy was standard treatment for completely resected stage III colorectal cancer in Japan. At that time, we started two randomized controlled trials to clarify the role of adjuvant chemotherapy of stage III colon and rectal cancer in the same time. Methods: Patients with completely resected stage III cancer of the colon or rectum (PS, 0 to 2; age, 20 to 75 years; no other adjuvant therapy) were eligible for these trials. Patients were registered within 6 weeks after surgery and were randomly assigned to receive surgery alone (control group) or surgery followed by treatment with UFT (400 mg/m2/day), given for 5 consecutive days per week for 1 year (UFT group). The target number of patients was 500 for colon cancer and 400 for rectal cancer (hazard ratio = 0.67, one-sided a= 0.05, β= 0.2). The primary endpoint was relapse-free survival (RFS), and the secondary end point was overall survival (OS). Results: Between October 1996 and April 2001, a total of 334 patients with colon cancer and 276 with rectal cancer were enrolled. Four ineligible patients were excluded; data from the remaining 332 patients with colon cancer and 274 with rectal cancer were analyzed. The patients’ characteristics were similar in the groups. Analysis of the results of follow-up until March 2006, at least 5 years after surgery in all patients (median follow-up period, 6.2 years), showed no significant difference in RFS or OS in colon cancer. In rectal cancer, however, RFS and OS were significantly better in the UFT group than in the control group. The only grade 4 toxicity was diarrhea, occurring in 1 patient with colon cancer and 1 patient with rectal cancer. Conclusions: Postoperative adjuvant chemotherapy with UFT is well tolerated and improved RFS and OS in patients with stage III rectal cancer. In colon cancer, the expected benefits were not obtained (hazard ratio = 0.67). [Table: see text] No significant financial relationships to disclose.

scholarly journals Adjuvant systemic chemotherapy for stages II and III colon cancer after complete resection: a clinical practice guideline

2016 ◽  
Vol 23 (6) ◽  
pp. 418 ◽  
Author(s):  
B.M. Meyers ◽  
R. Cosby ◽  
F. Quereshy ◽  
D. Jonker
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Adjuvant Chemotherapy ◽  
Practice Guideline ◽  
Stage Ii ◽  
Stage Iii ◽  
Cochrane Library ◽  
Stage Iii Colon Cancer ◽  
Resected Stage ◽  
Stage Ii Colon Cancer

Background Updated practice guidelines on adjuvant chemotherapy for completely resected colon cancer are lacking. In 2008, Cancer Care Ontario’s Program in Evidence-Based Care developed a guideline on adjuvant therapy for stages ii and iii colon cancer. With newer regimens being assessed in this patient population and older agents being either abandoned because of non-effectiveness or replaced by agents that are more efficacious, a full update of the original guideline was undertaken.Methods Literature searches (January 1987 to August 2015) of medline, embase, and the Cochrane Library were conducted; in addition, abstracts from the American Society of Clinical Oncology, the European Society for Medical Oncology, and the European Cancer Congress were reviewed (the latter for January 2007 to August 2015). A practice guideline was drafted that was then scrutinized by internal and external reviewers whose comments were incorporated into the final guideline.Results Twenty-six unique reports of eighteen randomized controlled trials and thirteen unique reports of twelve meta-analyses or pooled analyses were included in the evidence base. The 5 recommendations developed included 3 for stage ii colon cancer and 2 for stage iii colon cancer.Conclusions Patients with completely resected stage iii colon cancer should be offered adjuvant 5-fluorouracil (5fu)–based chemotherapy with or without oxaliplatin (based on definitive data for improvements in survival and disease-free survival). Patients with resected stage ii colon cancer without “high-risk” features should not receive adjuvant chemotherapy. For patients with “high-risk” features, 5fu-based chemotherapy with or without oxaliplatin should be offered, although no clinical trials have been conducted to conclusively demonstrate the same benefits seen in stage iii colon cancer.

Adjuvant Chemotherapy Use for Medicare Beneficiaries With Stage II Colon Cancer

2002 ◽  
Vol 20 (19) ◽  
pp. 3999-4005 ◽  
Author(s):  
Deborah Schrag ◽  
Sheryl Rifas-Shiman ◽  
Leonard Saltz ◽  
Peter B. Bach ◽  
Colin B. Begg
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Cox Model ◽  
Tumor Grade ◽  
Stage Ii ◽  
Median Income ◽  
Medicare Beneficiaries ◽  
Prognostic Features ◽  
Resected Stage ◽  
Stage Ii Colon Cancer

PURPOSE: Clinical trials have not demonstrated that adjuvant chemotherapy improves survival for patients with resected stage II colon cancer. Nevertheless, patients may receive this treatment despite its uncertain benefit. The objective of this study was to determine the extent to which adjuvant chemotherapy is used for patients with stage II colon cancer. PATIENTS AND METHODS: Using the Surveillance, Epidemiology, and End Results-Medicare linked database, we identified 3,151 patients aged 65 to 75 with resected stage II colon cancer and no adverse prognostic features. The primary outcome was chemotherapy use within 3 months of surgery ascertained from claims submitted to Medicare. Relationships between patient characteristics and adjuvant chemotherapy use were measured and their significance was assessed using multivariable logistic regression. Survival for treated and untreated patients was compared using a Cox model. RESULTS: Twenty-seven percent of patients received chemotherapy during the 3 postoperative months. Younger age at diagnosis, white race, unfavorable tumor grade, and low comorbidity were each associated with a greater likelihood of receiving treatment. Sex, the number of examined lymph nodes in the tumor specimen, the urgency of the surgical admission, and median income was each unrelated to treatment. Five-year survival was 75% for untreated patients and 78% for treated patients. After adjusting for known between-group differences, the hazard ratio for survival associated with adjuvant treatment was 0.91 (95% confidence interval, 0.77 to 1.09). CONCLUSION: A substantial percentage of Medicare beneficiaries with resected stage II colon cancer receive adjuvant chemotherapy despite its uncertain benefit.

Impact of Irradiation of Residual Breast on Adjuvant Chemotherapy Dose Intensity

1993 ◽  
Vol 16 (1) ◽  
pp. 58-60 ◽  
Author(s):  
P. Pronzato ◽  
L. Miglietta ◽  
A. Rubagotti ◽  
G. Bertelli ◽  
P. Queirolo ◽  
...  
Keyword(s):  
Adjuvant Chemotherapy ◽  
Dose Intensity ◽  
Chemotherapy Dose ◽  
Chemotherapy Dose Intensity

Stage II high-risk colon cancer: A retrospective analysis of the benefit of chemotherapy in patient subgroups based on the risk factor.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e16068-e16068
Author(s):  
Linu Abraham Jacob
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Adjuvant Chemotherapy ◽  
Risk Group ◽  
Disease Free Survival ◽  
High Risk Group ◽  
Stage Ii ◽  
Resected Stage ◽  
Stage Ii Colon Cancer ◽  
Patient Subgroups

e16068 Background: Adjuvant chemotherapy is routinely recommended for patients with high risk stage II colon cancer. However the risk conferred by each high risk feature (HRF) may be different. This study was done to analyze the magnitude of benefit of chemotherapy in individual HRF patient subgroups. Methods: Resected stage II colon cancer patients during the period January 2012 to March 2018 were retrospectively analyzed for risk features, chemotherapy treatment and survival. Statistical analysis was done with SPSS 16.0. Results: A total of 41 patients were identified as having pathological stage II colon cancer during the study period - 63.4% were males and 36.6%, females. 68.3% had left sided tumor while 31.7% had right sided tumor. 29.3% had none of the high risk features and received no adjuvant chemotherapy. 70.7% patients had at least one of the high risk features and received adjuvant chemotherapy with fluoropyrimidine ± oxaliplatin. 90.2%, 7.3% and 2.5% had stage IIA, IIB and IIC disease respectively. 36.6%, 43.9% and 19.5% had grade I, II and III tumors respectively. Lymphovascular invasion (LVI) and perineural invasion (PNI) were present in 14.6% and 19.5% patients respectively. 29.3% had inadequate lymph node dissection. 22.0% patients had elevated CEA prior to surgery and 4.9% patients had presented with intestinal obstruction. After a minimum follow up period of 20 months the median disease free survival (DFS) was 26 months for the entire cohort. Left sided tumors had significantly prolonged median DFS compared to the right sided tumors (31 vs 26 months; p = 0.05). Median DFS was 24 months for the high risk group compared to 33 months for the low risk group (p = 0.002). On subset analysis T4 HRF subgroup had superior DFS, while LVI HRF subgroup had inferior DFS both of which were statistically significant. Conclusions: Magnitude of chemotherapy benefit was highest in the T4 subgroup, while it was lowest in the LVI subgroup in resected stage II high risk colon cancer [Table: see text]

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