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Article Publish Status: FREE
Abstract Title:

Safety and feasibility of fasting in combination with platinum-based chemotherapy.

Abstract Source:

BMC Cancer. 2016 ;16(1):360. Epub 2016 Jun 10. PMID: 27282289

Abstract Author(s):

Tanya B Dorff, Susan Groshen, Agustin Garcia, Manali Shah, Denice Tsao-Wei, Huyen Pham, Chia-Wei Cheng, Sebastian Brandhorst, Pinchas Cohen, Min Wei, Valter Longo, David I Quinn

Article Affiliation:

Tanya B Dorff

Abstract:

BACKGROUND: Short-term starvation prior to chemotherapy administration protects mice against toxicity. We undertook dose-escalation of fasting prior to platinum-based chemotherapy to determine safety and feasibility in cancer patients.

METHODS: 3 cohorts fasted before chemotherapy for 24, 48 and 72 h (divided as 48 pre-chemo and 24 post-chemo) and recorded all calories consumed. Feasibility was defined as ≥ 3/6 subjects in each cohort consuming ≤ 200 kcal per 24 h during the fast period without excess toxicity. Oxidative stress was evaluated in leukocytes using the COMET assay.Insulin, glucose, ketones, insulin-like growth factor-1 (IGF-1) and IGF binding proteins (IGFBPs) were measured as biomarkers of the fasting state.

RESULTS: The median age of our 20 subjects was 61, and 85 % were women. Feasibility criteria were met. Fasting-related toxicities were limited to ≤ grade 2, most commonly fatigue, headache, and dizziness. The COMET assay indicated reduced DNA damage in leukocytes from subjects who fasted for ≥48 h (p = 0.08). There was a non-significant trend toward less grade 3 or 4 neutropenia in the 48 and 72 h cohorts compared to 24 h cohort (p = 0.17). IGF-1 levels decreased by 30, 33 and 8 % in the 24, 48 and 72 h fasting cohorts respectively after the first fasting period.

CONCLUSION: Fasting for 72 h around chemotherapy administration is safe and feasible for cancer patients. Biomarkers such as IGF-1 may facilitate assessment of differences in chemotherapy toxicity in subgroups achieving the physiologic fasting state. An onging randomized trial is studying the effect of 72 h of fasting.

TRIAL REGISTRATION: NCT00936364 , registered propectively on July 9, 2009.

Study Type : Human Study

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Sayer Ji
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