Smoking status and prognosis in patients with stage III colon cancer: A correlative analysis of NCCTG phase III trial N0147.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 3526-3526
Author(s):  
Amanda I. Phipps ◽  
Qian Shi ◽  
Paul J. Limburg ◽  
Garth D. Nelson ◽  
Daniel J. Sargent ◽  
...  
Keyword(s):  
Physical Activity ◽  
Colon Cancer ◽  
Alcohol Consumption ◽  
Braf Mutation ◽  
Smoking Status ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Stage Iii ◽  
Smoking History ◽  
Mutation Status

3526 Background: Prior observational studies have suggested that smoking is associated with poorer overall survival after colon cancer (CC) diagnosis. Using data from N0147, a phase III randomized adjuvant trial of patients with stage III CC, we assessed the relationship between smoking status and cancer outcomes (disease-free survival (DFS) and time to recurrence (TTR)), accounting for possible heterogeneity by patient and tumor characteristics. Methods: Patients completed a risk factor questionnaire at baseline prior to randomization to FOLFOX or FOLFOX+cetuximab (N=1968). Information was collected on smoking and other lifestyle factors, including alcohol consumption, body mass index (BMI), and physical activity. Multivariate Cox models assessed the association between smoking history and the primary trial outcome of DFS, as well TTR, adjusting for other lifestyle and clinical factors. The median follow-up was 3.5 years. Results: Overall, 52% of patients were former or current smokers. Compared to never smokers, ever smokers experienced significantly shorter DFS [3-year DFS: 70% vs 74%, hazard ratio (HR)=1.21, 95% confidence interval (CI): 1.02-1.42]. This association persisted after adjusting for age, sex, tumor subsite, number of nodes involved, T-stage, mismatch repair deficiency, BRAF mutation status, performance score, physical activity, BMI, and alcohol consumption (HR=1.23, 95% CI: 1.02-1.49). There was significant interaction in this association by BRAF mutation status (p=0.02): smoking was associated with shorter DFS in BRAF wildtype CC patients (HR=1.25, 95% CI: 1.04-1.51) but not in BRAF mutant CC patients (HR=0.72, 95% CI: 0.47-1.10). Patterns of association with smoking, overall and by BRAF status, were identical in analyses of TTR. Conclusions: Overall, smoking was significantly associated with shorter DFS and TTR in CC patients. These adverse relationships were most evident in patients with BRAF wildtype CC.

Three Versus 6 Months of Oxaliplatin-Based Adjuvant Chemotherapy for Patients With Stage III Colon Cancer: Disease-Free Survival Results From a Randomized, Open-Label, International Duration Evaluation of Adjuvant (IDEA) France, Phase III Trial

2018 ◽  
Vol 36 (15) ◽  
pp. 1469-1477 ◽  
Author(s):  
Thierry André ◽  
Dewi Vernerey ◽  
Laurent Mineur ◽  
Jaafar Bennouna ◽  
Jérôme Desrame ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Health Care Providers ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Stage Iii ◽  
Care Providers ◽  
Free Survival ◽  
Stage Iii Colon Cancer ◽  
Disease Free

Purpose Reduction of adjuvant treatment duration may decrease toxicities without loss of efficacy in stage III colon cancer. This could offer clear advantages to patients and health care providers. Methods In International Duration Evaluation of Adjuvant Chemotherapy (IDEA) France, as part of the IDEA international collaboration, patient with colon cancer patients were randomly assigned to 3 and 6 months of modified FOLFOX6 (mFOLFOX6: infusional fluorouracil, leucovorin, and oxaliplatin) or capecitabine plus oxaliplatin (CAPOX) by physician choice. The primary end point was disease-free survival (DFS), and analyses were descriptive. Results A total of 2,010 eligible patients received either 3 or 6 months of chemotherapy (modified intention-to-treat population); 2,000 (99%) had stage III colon cancer (N1: 75%, N2: 25%); 1,809 (90%) received mFOLFOX6, and 201 (10%) received CAPOX. The median age was 64 years, and the median follow-up time was 4.3 years. Overall, 94% (3 months) and 78% (6 months) of patients completed treatment (fluoropyrimidines ± oxaliplatin). Maximal grade 2 and 3 neuropathy rates were 28% and 8% in the 3-month arm and 41% and 25% in the 6-month arm ( P < .001). Final rates of residual neuropathy greater than grade 1 were 3% in the 3-month arm and 7% in the 6-month arm ( P < .001). There were 578 DFS events: 314 and 264 in the 3- and 6-month arms, respectively. The 3-year DFS rates were 72% and 76% in the 3- and 6-month arms, respectively (hazard ratio [HR], 1.24; 95% CI, 1.05 to 1.46; P = .0112). In the 3 and 6-month arms, respectively, for patients who received mFOLFOX6, the 3-year DFS rates were 72% and 76% (HR, 1.27; 95% CI, 1.07 to 1.51); for the T4 and/or N2 population, they were 58% and 66% (HR, 1.44; 95% CI, 1.14 to 1.82); and for the T1-3N1 population, they were 81% and 83% (HR, 1.15; 95% CI, 0.89 to 1.49). Conclusion IDEA France, in which 90% of patients received mFOLFOX6, shows superiority of 6 months of adjuvant chemotherapy compared with 3 months, especially in the T4 and/or N2 subgroups. These results should be considered alongside the international IDEA collaboration data.

Adjuvant FOLFIRI with or without cetuximab in patients with resected stage III colon cancer: NCCTG Intergroup phase III trial N0147.

2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 363-363 ◽  
Author(s):  
J. Huang ◽  
D. J. Sargent ◽  
M. R. Mahoney ◽  
S. N. Thibodeau ◽  
T. C. Smyrk ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Clin Oncol ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Stage Iii ◽  
Phase Iii Trial ◽  
Stage Iii Colon Cancer ◽  
Kras Status ◽  
Secondary Endpoints ◽  
Resected Stage

363 Background: Irinotecan (CPT-11) has demonstrated antitumor activity against metastatic colorectal cancer used alone or with 5-fluorouracil (5FU)/leucovorin (LV). Two arms with CPT-11, 5FU, and LV (FOLFIRI) +/- cetuximab (Cmab) were originally included in N0147. However, after CALGB 89803 (J Clin Oncol. 25:3456, 2007), PETACC-3 (J Clin Oncol. 27:3117, 2009), and Accord02 (Ann Oncol. 20:674, 2009) showed no benefit to the three-drug combination in adjuvant therapy, the CPT-11 arms of N0147 were discontinued. We report the outcomes for patients given FOLFIRI +/- Cmab. Methods: Following a signed informed consent patients with resected stage III colon cancer were randomized to one of 6 arms including 12 biweekly cycles of CPT-11 180 mg/m2 d1 with LV 400 mg/m2, 5FU 400 mg/m2 bolus IV, then 46-hr IV 5FU 2,400 mg/m2 on d1-2 without (Arm B, FOLFIRI) or with Cmab (Arm E) 400 mg/m2 d1 cycle 1 then Cmab at 250 mg/m2 d1 and 8. Primary endpoint was 3-year disease-free survival (DFS). Secondary endpoints included overall survival (OS) and toxicity. Results: 156 patients (Arm B-111, Arm E-45) were enrolled; median follow-up on 81 patients in Arm B was 60.3 months and 58.2 months in Arm E for 41 patients. wtKRAS (vs mt) status was associated with improved DFS (HR=0.6 [95% CI 0.4-1.1], p = 0.09) and OS (HR 0.7 [95% CI 0.4-1.5], p = 0.38). The addition of Cmab improved DFS and OS in the overall group and within wtKRAS pts. Grade greater than III non-hematologic adverse effects were significantly increased in the Cmab arm (46% vs. 64%, p = 0.05). Conclusions: In this randomized phase III trial adjuvant FOLFIRI resulted in a 3-year DFS lower than that expected for FOLFOX. Trends for improved DFS and OS with the addition of Cmab were observed in patients with resected stage III colon cancer patients, regardless of KRAS status. Supported by NIH Grant CA25224, Bristol-Myers Squibb, ImClone, Sanofi-Aventis, and Pfizer. [Table: see text] [Table: see text]

Six months versus twelve months of capecitabine as adjuvant chemotherapy for stage III (Dukes' C) colon cancer: Initial safety report for the open-label randomized phase III study (JFMC37-0801).

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 3607-3607 ◽  
Author(s):  
Katsuyuki Kunieda ◽  
Sotaro Sadahiro ◽  
Hideyuki Mishima ◽  
Chikuma Hamada ◽  
Shigetoyo Saji ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Treatment Duration ◽  
Disease Free Survival ◽  
Chemotherapeutic Agents ◽  
Phase Iii ◽  
Stage Iii ◽  
Serious Adverse Events ◽  
Phase Iii Trial ◽  
Stage Iii Colon Cancer

3607 Background: The standard treatment duration of adjuvant chemotherapy (CT) in patients (pts) with stage III colon cancer is 6 months. On the other hand, no clinical trial showed the optimal treatment duration of oral chemotherapeutic agents in adjuvant setting for colon cancer. Sargent et al have reported that 83% of recurrences in stage II and III pts have occurred within the first 3 years after surgery and peak was observed around one year after surgery. Therefore, to clarify the benefit of 12 months administration of Capecitabine, we designed randomized phase III trial for a comparison of 6 months treatment and 12 months treatment of capecitabine as adjuvant CT for stage III colon cancer. Methods: JFMC37 is a multicenter, randomized Phase III trial. Patients with fully resected Stage III colon or recto sigmoid cancer were eligible. Capecitabine was administered orally as tablets, 2,500 mg/m²/day for 14 days followed by a 7-days rest. Treatment is continued to 8 cycles (6 months) in arm A (A) or 16 cycles (12 months) in arm B (B). Patients were randomized 1:1 to A or B. Data size was estimated by disease free survival as primary endpoint. The statistical design is based on superiority hypothesis; 5-yrs DFS is 60% in arm A, 67% in arm B ;unilateral α=0.05, 1-β=0.8;and planed accrual is 1200 pts. Results: Between September 2008 to December 2009, 1304 patients were enrolled and then randomized. Both arms were well balanced for mean age: (A) 64.1, (B) 63.8; ECOG PS (%0/1): (A) 95.0/5.0, (B) 97.1/2.9; involvement of lymph nodes (%N0/N1/N2): (A) 77.1/19.9/3.1, (B) 76.6/19.7/3.7. Treatment completion rate for A and B were 68.2% and 43.4%. Incidences of serious adverse events (SAEs) over 1% were neutropenia: (A) 2.6%, (B) 3.8%, diarrhea: (A) 2.9%, (B) 2.1%, loss of appetite: (A) 1.3%, (B) 1.0%, fatigue: (A) 1.8%, (B) 1.2%, hand-hoot syndrome: (A) 16.4%, (B) 22.1%. Conclusions: There were no obvious differences in SAEs between arm A and arm B. Although twelve months of capecitabine showed a tendency to increase G3/4 hand-foot syndrome, we concluded that incidence of SAEs were acceptable and comparable to previously report.

A phase III study of the impact of a physical activity program on disease-free survival in patients with high-risk stage II or stage III colon cancer: A randomized controlled trial (NCIC CTG CO.21).

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. TPS3647-TPS3647
Author(s):  
Christopher M. Booth ◽  
Kerry S. Courneya ◽  
Janette L. Vardy ◽  
Derek J. Jonker ◽  
Sharlene Gill ◽  
...  
Keyword(s):  
Physical Activity ◽  
Colon Cancer ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Free Survival ◽  
Face To Face ◽  
Randomized Controlled ◽  
Disease Free

TPS3647 Background: Observational data indicate that physical activity (PA) is strongly associated with colon-cancer specific survival. NCIC CTG CO.21 (CHALLENGE) is designed to determine the effects of a structured PA intervention on disease-control outcomes for survivors of high-risk stage II or III colon cancer who have completed adjuvant chemotherapy within the previous 2-6 months. Methods: Phase III randomized controlled trial. Target sample size of 962 patients is powered to detect a Hazard Ratio of 0.75 for disease-free survival (DFS). Trial participants will be stratified by centre, disease stage, body mass index, and performance status, and will be randomly assigned to a structured, individualized PA intervention or to general health education materials. The PA intervention will consist of a behavioural support program and supervised PA sessions delivered over a 3-year period, beginning with regular face-to-face sessions and tapering to less frequent face-to-face or telephone sessions. The goal of the PA program is to increase weekly PA by 10 MET hours/week. The PA program is delivered by physical activity consultants trained in exercise physiology and behavior change. Outcomes: The primary endpoint is DFS. Important secondary endpoints include multiple patient-reported outcomes (including those that address fatigue), objective physical functioning, biologic correlative markers (including assessment of the insulin pathway), and an economic analysis. Current Enrollment: The study is open at 19 centers in Canada and 20 centers in Australia. Accrual as of February 4, 2013 includes 212 registered and 184 randomized patients. Summary: Cancer survivors and cancer care professionals are interested in the potential role of PA to improve multiple disease-related outcomes, but a randomized controlled trial is needed to provide compelling evidence to justify changes in health care policies and practice. Clinical trial information: NCT00819208.

A randomized phase III trial of S-1/oxaliplatin (SOX) versus UFT/leucovorin as adjuvant chemotherapy for high-risk stage III colon cancer: The ACTS-CC 02 trial.

2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 484-484 ◽  
Author(s):  
Takao Takahashi ◽  
Eiji Sunami ◽  
Tetsuya Kusumoto ◽  
Mitsuyoshi Ota ◽  
Yoshiyuki Sakamoto ◽  
...  
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Adjuvant Chemotherapy ◽  
Primary Endpoint ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Stage Iii ◽  
Disease Stage ◽  
Stage Iiic ◽  
Stage Iii Colon Cancer

484 Background: The ACTS-CC 02 trial was designed to verify the superiority of postoperative adjuvant chemotherapy with S-1/oxaliplatin (SOX) over UFT/leucovorin (LV), one of the standard oral fluoropyrimidine regimens in Japan, in terms of disease-free survival (DFS) in patients (pts) with high-risk stage III colon cancer (any T, N2, or positive nodes around the origin of the feeding arteries). The results of the safety analysis have been reported previously (Clin Colorectal Cancer, 2018). We now present the 3-year DFS results as the primary endpoint. Methods: Pts who underwent curative resection for pathologically confirmed high-risk stage III colon cancer were randomly assigned to receive either UFT/LV (300–600 mg/day of UFT according to body surface area [BSA] and 75 mg/day of LV on days 1-28, every 35 days, 5 courses) or SOX (100 mg/m2 of oxaliplatin on day 1 and 80–120 mg/day of S-1 according to BSA on days 1-14, every 21 days, 8 courses). The primary endpoint was DFS. Results: From April 2010 through October 2014, a total of 966 pts were enrolled at 260 institutions. The full analysis set, excluding pts who withdrew informed consent before protocol treatment, comprised 478 and 477 pts in the UFT/LV group and SOX group, respectively. The median age was 65.0 years. The ECOG PS was 0 in 94.0%, and the disease stage was IIIA/IIIB/IIIC in 1.3%/50.2%/48.6%. The 3-year DFS rate was 60.6% in the UFT/LV group and 62.7% in the SOX group (HR: 0.90; 95% CI: 0.74-1.09; p = 0.28); the superiority of SOX was not demonstrated. In stage IIIB, the 3-year DFS rate was 69.3% and 68.5% in the UFT/LV group and SOX group, respectively (HR: 1.01; 95% CI: 0.74-1.37; p = 0.95). In Stage IIIC, the 3-year DFS rate was 50.6% and 55.8% in the UFT/LV group and SOX group, respectively (HR: 0.82, 95% CI: 0.63-1.06; p = 0.12). Notably, in the N2b subgroup, the 3-year DFS rate was 46.0% and 54.7% in the UFT/LV group and SOX group, respectively (HR: 0.76, 95% CI: 0.55-1.05; p = 0.10). Conclusions: SOX was not shown to be superior to UFT/LV in pts with high-risk stage III colon cancer. However, the oxaliplatin-based regimen was suggested to be more effective in advanced disease, such as stage IIIC and N2b. Clinical trial information: JapicCTI-101073.

PRODIGE 34 ADAGE: Adjuvant chemotherapy in elderly patients with resected stage III colon cancer—A randomized phase III trial.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. TPS3628-TPS3628
Author(s):  
Thomas Aparicio ◽  
Pierre-Luc Etienne ◽  
Olivier Bouche ◽  
Laurent Mineur ◽  
Sandrine Hiret ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Adjuvant Chemotherapy ◽  
Elderly Patients ◽  
Tumor Biology ◽  
Disease Free Survival ◽  
Phase Iii ◽  
Stage Iii ◽  
Group 2 ◽  
Resected Stage ◽  
Group 1

TPS3628 Background: Colon cancer (CC) occurs in around 50% of the patients after 70 years. Adjuvant chemotherapy (CT) has demonstrated a benefit on disease-free survival (DFS) and overall survival after a stage III CC resection. Nevertheless, adjuvant CT is poorly used in elderly patients. There is still concern about the efficacy of doublet CT with oxaliplatin in fit elderly patients and the usefulness of fluoropyrimidine monotherapy in unfit elderly patients. The selection of patients that should be treated remains a challenge. Geriatric evaluation and tumor biology should be explored to help for patient selection. Methods: ADAGE is a multicenter, randomized phase III study comparing 3-years DFS of 2 therapeutic strategies in 2 groups of patients aged over 70 with completely resected stage III CC. Patients are included in one of the 2 groups after a multidisciplinary team evaluation; Group 1 (arm A and B) is defined as “able” to be treated with doublet CT; Group 2 (arm C and D) is defined as “unable” to be treated with doublet CT. In each group, patients are randomized according to a 1:1 ratio. Randomization is stratified according to center, gender, stage (IIIA vs IIIB vs IIIC), occlusion and/or perforation (yes vs no) and independent activity of daily living score (IADL: normal vs abnormal). Arm A and D receive LV5FU2 or capecitabine, arm B FOLFOX4 or XELOX and arm C is an observation arm. The treatment is planned for 6 months. Adjuvant CT should start within 12 weeks after surgery. Geriatric questionnaires and Lee score must be completed before randomization. Radiological assessment is performed every 6 months for 3 years after randomization and then annually for 2 years. Hypotheses (α two-sided = 5%, power = 80%) are to improve 3-years DFS from 65% (arm A) to 72% (arm B) in group 1 (756 patients required) and from 40% (arm C) to 55% (arm D) in group 2 (226 patients required). Safety is evaluated based on laboratory and clinical tests before each cycle. Exploratory analysis are planned to determine geriatric prognostic factors for DFS. A biological ancillary study is planned to allow prognostic evaluation of mismatch repair status and other molecular signatures. At the 1stof February 2017 the accrual was 246 patients. Clinical trial information: NCT02355379.

Age, gender, and performance status effects on efficacy of 3 versus 6 months of adjuvant oxaliplatin and fluoropyrimidine chemotherapy for stage III colon cancer: Phase III ACHIEVE trial as part of the IDEA collaboration.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 731-731
Author(s):  
Takeshi Kato ◽  
Takayuki Yoshino ◽  
Takeharu Yamanaka ◽  
Masahito Kotaka ◽  
Dai Manaka ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Treatment Duration ◽  
Performance Status ◽  
Disease Free Survival ◽  
Female Gender ◽  
Phase Iii ◽  
Stage Iii ◽  
Ecog Performance Status ◽  
Subgroup Analyses ◽  
Ecog Ps

731 Background: ACHIEVE, a part of the IDEA collaboration, was a multicenter trial randomizing patients with stage III resected colon cancer to either 3 versus 6 months of mFOLFOX6/CAPOX. The primary endpoint was disease-free survival (DFS). We previously reported that the hazard ratios (HRs) of 3 versus 6 months duration in this study according to risk stage (low-risk [T1-3 and N1] or high-risk [T4 or N2]) and regimen (mFOLFOX6 or CAPOX) as well as in overall population were consistent with those observed in the whole IDEA. Methods: ACHIEVE enrolled 1313 patients in Japan between August 2012 and June 2014, out of whom 1291 pts were analyzed for efficacy analysis. As of June 2017, 291 DFS events were observed with a median follow-up time of 39 months. The HR of DFS in the overall population was 0.95 (0.76—1.20) with a 3-year DFS of 80% in 3 months arm and 78% in 6 months arm. In the current study, we investigated subgroup analyses for DFS including age, gender, and ECOG performance status (PS). Results: Outcomes of subgroup analyses are summarized in the Table. With regard to HRs and upper bound on the confidence intervals, the trend of 3 months arm being slightly inferior to 6 months arm in patients with an age of ≥70, female gender, and an ECOG PS of 1; however, there was no evidence of significant interaction across treatment duration and the subgroups. Conclusions: The treatment duration effect did not depend on age, gender, and ECOG PS. Further results according to risk stage and regimen will be presented. Clinical trial information: UMIN 000008543. [Table: see text]

Prognostic value of tumor deposits for disease free survival in patients with stage III colon cancer: A post hoc analysis of IDEA France phase III trial (PRODIGE-GERCOR).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 3519-3519
Author(s):  
Jean Francois Delattre ◽  
Romain Cohen ◽  
Julie Henriques ◽  
Antoine Falcoz ◽  
Jean-François Emile ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cox Model ◽  
Multivariable Analysis ◽  
Disease Free Survival ◽  
Tnm Staging ◽  
Phase Iii ◽  
Stage Iii ◽  
Free Survival ◽  
Stage Iii Colon Cancer ◽  
Disease Free

3519 Background: Tumor deposits (TDs) are isolated tumor foci in the pericolic, perirectal or mesocolic fat without residual lymph node (LN) tissue. TDs seem to impact the prognosis of stage III colon cancer (CC) patients (pts) but are only considered in TNM staging in the absence of LN metastases (LNM). We aimed at evaluating the prognosis value for disease free survival (DFS)of TDs in International Duration Evaluation of Adjuvant Chemotherapy (IDEA) France phase III study (NCT00958737) that compared 3 versus 6 months of adjuvant FOLFOX or CAPOX for stage III CC pts. Methods: All pathological reports of pts included in IDEA France trial were retrospectively analyzed. DFS according to the presence or absence of TDs was evaluated using Kaplan-Meier estimator. Multivariable Cox model analysis was performed to evaluate the association between TDs and DFS. This analysis did not included immunohistochemical biomarkers. Results: Among the 2022 pts included in IDEA France study, 1942 (96%) were analyzed. 80 pts were excluded: no pathological report (n = 68), pts without treatment (n = 12). TDs were found in 184 pts (9.47%), of whom 74 with N1a/b (40%), 55 with N1c (30%) and 55 with N2 LN stage (30%). All characteristics were similar according to the presence of TDs, except for tumor/node (TN) stage (T4 and/or N2 are more frequent in pts with TDs; p = .0046). The 3-year DFS rates were 65.59% [95% confidence interval (95%CI) 58.04-72.12] and 74.71% [95%CI 72.57-76.71] for pts with and without TDs, respectively (p = 0.0079). In multivariable analysis, TDs were associated with higher risk of recurrence or death (hazard ratio (HR) = 1.36, 95%CI 1.05-1.75, p = .0201), as well as T4 and/or N2 (HR = 2.21, 95%CI 1.03-1.59, p < .001), 3 months of adjuvant treatment (HR = 1.29, 95%CI 1.09-1.52, p = .0029), obstruction (HR = 1.28, 95%CI 1.03-1.59, p = .0233) and male (HR = 1.24, 95%CI 1.04-1.46, p = .0151). Adding TDs count to the LNM count, 35 out of 1454 N1a/b/c CC pts (2.4%) were reclassified as N2 and experienced worse 3 years DFS than confirmed N1 CC pts (p = .0151). Conclusions: TD is an independent and valuable prognostic factor for DFSin stage III CC pts and should be considered whatever the LNM status.

scholarly journals Associations Between Cigarette Smoking Status and Colon Cancer Prognosis Among Participants in North Central Cancer Treatment Group Phase III Trial N0147

2013 ◽  
Vol 31 (16) ◽  
pp. 2016-2023 ◽  
Author(s):  
Amanda I. Phipps ◽  
Qian Shi ◽  
Polly A. Newcomb ◽  
Garth D. Nelson ◽  
Daniel J. Sargent ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Treatment Group ◽  
Cancer Treatment ◽  
Phase Iii ◽  
Smoking History ◽  
Wild Type ◽  
North Central ◽  
Mutation Status ◽  
Phase Iii Trial ◽  
Time To Recurrence

Purpose By using data from North Central Cancer Treatment Group Phase III Trial N0147, a randomized adjuvant trial of patients with stage III colon cancer, we assessed the relationship between smoking and cancer outcomes, disease-free survival (DFS), and time to recurrence (TTR), accounting for heterogeneity by patient and tumor characteristics. Patients and Methods Before random assignment to infusional fluorouracil, leucovorin, and oxaliplatin (FOLFOX) or FOLFOX plus cetuximab, 1,968 participants completed a questionnaire on smoking history and other risk factors. Cox models assessed the association between smoking history and the primary trial outcome of DFS (ie, time to recurrence or death), as well as TTR, adjusting for other clinical and patient factors. The median follow-up was 3.5 years among patients who did not experience events. Results Compared with never-smokers, ever smokers experienced significantly shorter DFS (3-year DFS proportion: 70% v 74%; hazard ratio [HR], 1.21; 95% CI, 1.02 to 1.42). This association persisted after multivariate adjustment (HR, 1.23; 95% CI, 1.02 to 1.49). There was significant interaction in this association by BRAF mutation status (P = .03): smoking was associated with shorter DFS in patients with BRAF wild-type (HR, 1.36; 95% CI, 1.11 to 1.66) but not BRAF mutated (HR, 0.80; 95% CI, 0.50 to 1.29) colon cancer. Smoking was more strongly associated with poorer DFS in those with KRAS mutated versus KRAS wild-type colon cancer (HR, 1.50 [95% CI, 1.12 to 2.00] v HR, 1.09 [95% CI, 0.85 to 1.39]), although interaction by KRAS mutation status was not statistically significant (P = .07). Associations were comparable in analyses of TTR. Conclusion Overall, smoking was significantly associated with shorter DFS and TTR in patients with colon cancer. These adverse relationships were most evident in patients with BRAF wild-type or KRAS mutated colon cancer.

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