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Feasibility of a Lifestyle Intervention for Women With Triple-negative Breast Cancer Under Neoadjuvant Immunotherapy
Sponsor: Kliniken Essen-Mitte
Summary
Triple-negative breast cancer (TNBC) is considered a tumor with a high risk of recurrence and metastasis and requires aggressive systemic therapy combining immunotherapy and chemotherapy. If the therapy leads to complete remission (pCR), this is prognostically beneficial for patients. Studies demonstrating the influence of the microbiome on the development of cancer and on the efficacy and toxicity of immunotherapy and chemotherapy underscore the potential of targeted nutritional interventions. Current data from microbiome research indicate that a high-fiber, gut-healthy diet modulates the microbiota in such a way that the response to and toxicity of immunotherapy and chemotherapy could be improved. The aim of this project is to translate these findings into clinical care. The study will investigate whether an online integrative oncology group training program with mind-body elements supports and is feasible for the implementation of a high-fiber diet in patients with TNBC undergoing neoadjuvant immunotherapy and chemotherapy. The program will be compared with a control group that receives a flyer with nutritional recommendations. If the feasibility of this complementary medicine approach can be demonstrated, a confirmatory study is planned to investigate the expected effect on the pathological complete remission of TNBC.
Official title: Feasibility of a Lifestyle Intervention to Switch to a High-fiber, Gut-healthy Diet in Women With Triple-negative Breast Cancer Undergoing Neoadjuvant Immunotherapy: a Randomized Controlled Trial
Key Details
Gender
FEMALE
Age Range
18 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2026-02-01
Completion Date
2027-07-01
Last Updated
2026-01-14
Healthy Volunteers
No
Conditions
Interventions
switching to a high-fibre diet
The aim of the intervention is to support patients in implementing a high-fibre diet (20-30 g of fibre per day) before and during systemic therapy. A multi-professional team consisting of a specialist doctor, a qualified nutritionist and an MBM therapist ensures comprehensive support during lifestyle modification. While the nutritional counselling provides recommendations for optimising diet, the MBM intervention addresses behavioural factors such as motivation, self-efficacy expectations and dealing with barriers to action. In addition, the specialist provides advice on symptom management.
official dietary recommendations
providing official dietary recommendations and an educational training video based on these recommendations of the guidelines of the German Nutrition Society (DGE)