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Published in: BMC Cancer 1/2015

Open Access 01-12-2015 | Research article

The effects of short-term fasting on tolerance to (neo) adjuvant chemotherapy in HER2-negative breast cancer patients: a randomized pilot study

Authors: Stefanie de Groot, Maaike PG Vreeswijk, Marij JP Welters, Gido Gravesteijn, Jan JWA Boei, Anouk Jochems, Daniel Houtsma, Hein Putter, Jacobus JM van der Hoeven, Johan WR Nortier, Hanno Pijl, Judith R Kroep

Published in: BMC Cancer | Issue 1/2015

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Abstract

Background

Preclinical evidence shows that short-term fasting (STF) protects healthy cells against side effects of chemotherapy and makes cancer cells more vulnerable to it. This pilot study examines the feasibility of STF and its effects on tolerance of chemotherapy in a homogeneous patient group with early breast cancer (BC).

Methods

Eligible patients had HER2-negative, stage II/III BC. Women receiving (neo)-adjuvant TAC (docetaxel/doxorubicin/cyclophosphamide) were randomized to fast 24 h before and after commencing chemotherapy, or to eat according to the guidelines for healthy nutrition. Toxicity in the two groups was compared. Chemotherapy-induced DNA damage in peripheral blood mononuclear cells (PBMCs) was quantified by the level of γ-H2AX analyzed by flow cytometry.

Results

Thirteen patients were included of whom seven were randomized to the STF arm. STF was well tolerated. Mean erythrocyte- and thrombocyte counts 7 days post-chemotherapy were significantly higher (P = 0.007, 95 % CI 0.106-0.638 and P = 0.00007, 95 % CI 38.7-104, respectively) in the STF group compared to the non-STF group. Non-hematological toxicity did not differ between the groups. Levels of γ-H2AX were significantly increased 30 min post-chemotherapy in CD45 + CD3- cells in non-STF, but not in STF patients.

Conclusions

STF during chemotherapy was well tolerated and reduced hematological toxicity of TAC in HER2-negative BC patients. Moreover, STF may reduce a transient increase in, and/or induce a faster recovery of DNA damage in PBMCs after chemotherapy. Larger studies, investigating a longer fasting period, are required to generate more insight into the possible benefits of STF during chemotherapy.

Trial registration

ClinicalTrials.gov: NCT01304251, March 2011
Appendix
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Metadata
Title
The effects of short-term fasting on tolerance to (neo) adjuvant chemotherapy in HER2-negative breast cancer patients: a randomized pilot study
Authors
Stefanie de Groot
Maaike PG Vreeswijk
Marij JP Welters
Gido Gravesteijn
Jan JWA Boei
Anouk Jochems
Daniel Houtsma
Hein Putter
Jacobus JM van der Hoeven
Johan WR Nortier
Hanno Pijl
Judith R Kroep
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2015
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-015-1663-5

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