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Get your patients moving, even in the adjuvant setting! Of course, a lot of bias is possible here, but there was nearly a 10% difference in cure at three years.
To determine the specific types, durations, and intensities of recreational physical activity associated with the greatest improvements in disease-free survival (DFS) of patients with colon cancer.
We conducted a prospective cohort study nested within a randomized multicenter trial of stage III colon cancer that compared 3 versus 6 months of fluorouracil, leucovorin, and oxaliplatin with or without celecoxib. We measured recreational physical activity in the first 3 months of chemotherapy and again 6 months after completion of chemotherapy. The primary end point was DFS.
During a median follow-up of 5.9 years, 457 of 1,696 patients experienced disease recurrence or death. For total recreational physical activity volume, the 3-year DFS was 76.5% with < 3.0 metabolic equivalent task hours per week (MET-h/wk) and 87.1% with ≥ 18.0 MET-h/wk (risk difference [RD], 10.6%; 95% CI, 4.7 to 19.4; P < .001). For light-intensity to moderate-intensity activities, the 3-year DFS was 65.7% with 0.0 h/wk and 87.1% with ≥ 1.5 h/wk (RD, 21.4%; 95% CI, 9.2 to 37.1; P < .001). For vigorous-intensity activity, the 3-year DFS was 76.0% with 0.0 h/wk and 86.0% with ≥ 1.0 h/wk (RD, 10.0%; 95% CI, 4.5 to 18.9; P < .001). For brisk walking, the 3-year DFS was 81.7% with < 1.0 h/wk and 88.4% with ≥ 3.0 h/wk (RD, 6.7%; 95% CI, 3.0 to 13.8; P < .001). For muscle strengthening activity, the 3-year DFS was 81.8% with 0.0 h/wk and 88.8% for ≥ 0.5 h/wk (RD, 7.0%; 95% CI, 3.1 to 14.2; P = .003).
Among patients with stage III colon cancer enrolled in a trial of postoperative treatment, larger volumes of recreational physical activity, longer durations of light- to moderate-intensity aerobic physical activity, or any vigorous-intensity aerobic physical activity were associated with the greatest improvements in DFS.
No oxaliplatinum in stage 2 colon cancer, even high-risk patients, by the way, De Gramont is one of the authors (father of FOLOFX reigmens).
There is more movement towards using time to relapse as an endpoint for adjuvant studies. This report highlights that there is still a role for oxaliplatin in older patients with Stage III CRC. The time to relapse was not significantly different in patients who are younger vs older. TTR is suggested as a more informative endpoint as older patients uniformly have a lower DFS and OS in most trials.
Epi and nivo for mismatch repair-deficient (dMMR) colon cancer had 98% response rate with 68% complete response, non-recurred with a median of follow up of 26 months. Does this mean bye-bye surgery??? Probably. We will need to assess those who have complete response and have a close follow up. CtDNA may play big role here, along with a need for randomized trials.
COLOXIS is an interesting computer-based learning model that seems to be able to predict which patients are likely to benefit from adjuvant chemotherapy in colorectal cancer. This, along with ctDNA tests, may change whom we choose to offer adjuvant chemotherapy.
Negative study for the use of HIPEC in the adjuvant setting of high-risk or locally advanced colorectal cancers, including those with perforation and peritoneal invasion. HIPEC doesn’t seem to reduce the risk of peritoneal recurrence after potentially curative resection.
FCS Hematology Oncology Review creates a platform for our physician network to observe the most recent articles and studies available in the oncology and hematology world. By sharing these articles we are building our wealth of knowledge of new observations and treatments as they come available.
