ESPEN Congress Geneva 2014 LLL LIVE COURSE: NUTRITIONAL SUPPORT IN CANCER · 2014-09-18 · ESPEN...
Transcript of ESPEN Congress Geneva 2014 LLL LIVE COURSE: NUTRITIONAL SUPPORT IN CANCER · 2014-09-18 · ESPEN...
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ESPEN Congress Geneva 2014LLL LIVE COURSE: NUTRITIONAL SUPPORT IN CANCER
Nutritional effects of cancer therapy and potential modulation of tumor growthA. Laviano (IT)
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ESPEN LLL CourseTopic 26 - Nutritional Support in Cancer Patients
Alessandro Laviano
Nutritional effects of cancertherapy and potential
modulation of tumour growth
Department of Clinical MedicineSapienza University, Rome, [email protected]
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Cocoa
Theobroma cacoaDrink of Gods (Xocoatl)
theo = Godbroma = drink
Mexico (Maya, Incas, Aztecs)
Aphrodisiac
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Learning Objectives
• Understanding the impact of anti-cancer therapies on
nutritional status
•Understanding the negative role of caloric restriction/fasting
on cancer patients’ nutritional status and outcome
•Discussing the inhibitory role of specific nutrients on tumour
growth
•Discussing the role of specific nutrients in enhancing efficacy
of anti-cancer therapies
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Siegel R et al. CA Cancer J Clin 2014; 64:9-29
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Siegel R et al. CA Cancer J Clin 2014; 64:9-29
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Current limitations of anti-cancer strategies
• Too much focus on tumor cells, minimal on the human body attached to
them (i.e., up to 40% of cancer patients receive chemotherapy in the last
month of life, but ASCO quality standards recommend <10%).
• Excessive toxicity.
• High costs = financial toxicity of cancer (i.e., sipuleucel-T yields 4 month
survival advantage in advanced prostate cancer at 93,000 USD per course
of treatment).
• Questionable cost-effectiveness (i.e., new drugs approved after
demonstration of survival extension by 15 days).
• Study design (i.e., survival as the ultimate outcome).
• Statistical analysis or “the seductive certainty of significance” (Nuzzo R.
Nature 2014; 506:150-152).
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Cancer treatment toxicity
• Non preventable factors- patient’s genetic background- pharmacokinetic & pharmacodynamic
• Preventable factors- dosage- timing- malnutrition
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Hildebrandt MA et al. PLoS ONE 2010; 5(8):e12402
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Cancer treatment toxicity
• Non preventable factors- patient’s genetic background- pharmacokinetic & pharmacodynamic
• Preventable factors- dosage- timing- malnutrition (=cachexia → muscle loss)
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PLoS ONE 2012; 7 (5):e37563
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• n = 1473 (lung or GI cancer, at presentation).
• BMI distribution: 17% obese, 35% overweight, 36% normal weight
• High weight loss, low muscle index, and low muscle attenuation
are independent prognostic factors of survival.
• Survival model containing conventional variables (i.e., cancer
diagnosis, stage, age, performance status) has c statistic of 0.73.
• Survival model including only BMI, weight loss, muscle index, and
muscle attenuation has a c statistic of 0.92.
Martin L et al. J Clin Oncol 2013; 31:1539-1547
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Ravasco P et al. Am J Clin Nutr 2012; 96:1346-53
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Murphy RA et al. Cancer 2011; 117:1775-82
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Eur J Clin Nutr 2012; 66:399-404
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Clin Nutr 2012; 31:765-773
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Impact of cancer treatment on nutritional status
Dr. Stanley B. Burns’ cases (1800)
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Nutrition Journal 2010; 9:15
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van Norren K et al. Br J Cancer 2009; 100:311-4
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Evolution of body weight, muscle area, and adipose area during 6 months of
treatment with sorafenib (gold; n = 48) v placebo (blue; n = 32).
Antoun S et al. JCO 2010;28:1054-1060
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Specific nutrients and tumour growth
• Do nutrients stimulate the growth of cancer cells?Yes
• Does nutritional support in cancer patientsaccelerate tumour growth in a clinically relevantmanner?
Probably not
• Do malnourished cancer patients live longer thanwellnourished cancer patients?
No
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Flavahan WA et al. Nat Neurosci 2013; 16:1373-1382
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McMillin DW et al. Nat Rev Drug Discov 2013; 12:217-228
Cancer cellsinteract with
stroma cells tocreate an
inflammatorymicroenvironment
which supportsproliferation of
tumor cells
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Science 2013; 339:286-291
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Bougnoux P et al. Br J Cancer 2009; 101:1978-1985
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Murphy RA et al. Cancer 2011; 117:3774-3780
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Am J Clin Nutr 2010; 92:1151-1156
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Caloric restriction and differential stress response in oncology
Fontana L et al. Science 2010; 328:321-326
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Solon-Biet SM et al. Cell Metab 2014; 19:418-430
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N Engl J Med 2012; 366:2319-2320
Fasting mimicking diet
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Abdelwahab MG et al. PLoS ONE 2012; 7(5):e36197
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Nat Rev Clin Oncol 2013; 10:80-89
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Key Messages
• By altering taste and smell, chemotherapy reduces foodintake•Specific chemotherapeutic agents have a negative anddirect impact on muscle mass•Caloric restriction in vulnerable individuals, like cancerpatients receiving active anti-cancer therapies, may favourweight loss and cachexia.•Omega-3 fatty acids have been shown to enhance theefficacy of chemotherapy, although these preliminaryresults need to be validated in larger trials
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“Quid est veritas?”“What is the truth?”
“Vir qui adest”“The man (=patient) in front of you”