NCT05234502

Brief Summary

Breast cancer is the most common cancer type among women in Turkey and the world. Chemotherapy, surgery, radiotherapy, immunotherapy and hormone therapy are used in the treatment. Nutrition is one of the important factors affects cancer treatment. In recent years, there has been an increase in the number of clinical studies on the ketogenic diet (KD) in different types of cancer. In the literature, it has been shown the KD applied with chemotherapy improves the quality of life and decreases the body weight and tumour size in women with breast cancer. However, there is no comprehensive study evaluating the effect of KD on chemotherapy-induced sensory and motor neuropathy and survival in breast cancer patients. In this project, the KD will be planned for overweight and obese women diagnosed with breast cancer who will be treated with neoadjuvant chemotherapy. Tumour size, nutritional status, biochemical findings, anthropometric measurements, quality of life, sensory and motor polyneuropathy and survival will be evaluated. Fifty-six women with breast cancer who comply with the study criteria and are willing to participate in the study will be given an adequate and balanced healthy diet program during the standard neoadjuvant treatment (12 weeks) with anthracycline. After the interim evaluation, individuals will be randomly divided into two groups. Simultaneously with standard neoadjuvant therapy containing taxane (12 weeks), KD will be planned for the first group and the second group will continue on the adequate and balanced healthy diet program. After neoadjuvant therapy, the effects of diets on prognosis and other factors (nutritional status, biochemical findings, anthropometric measurements, quality of life, sensory and motor polyneuropathy, and survival) will be compared. In this study, unlike other studies, the first data on the effect of KD on chemotherapy-induced polyneuropathy and pathological response in women with breast cancer will be obtained. In this respect, it has the potential for nutritional practices in clinical oncology. The KD could improve body composition and the complications related to obesity and decrease polyneuropathy. Therefore, drug-using and application to the hospital could decrease. The results of the project will contribute to the improvement of the health and the quality of life of women, who are the most important element of society and the family.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
56

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2022

Typical duration for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 13, 2022

Completed
17 days until next milestone

Study Start

First participant enrolled

January 30, 2022

Completed
11 days until next milestone

First Posted

Study publicly available on registry

February 10, 2022

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2025

Completed
Last Updated

February 10, 2022

Status Verified

February 1, 2022

Enrollment Period

2 years

First QC Date

January 13, 2022

Last Update Submit

February 1, 2022

Conditions

Keywords

neoadjuvant chemotherapyketogenic dietpolyneuropathy

Outcome Measures

Primary Outcomes (6)

  • Polyneuropathy

    Chemotherapy-induced polyneuropathy will be assessed through EORTC QLQ-CIPN20.

    6 months (before and after neoadjuvant therapy)

  • Polyneuropathy-severity of symptoms

    Severity of symptoms of polyneuropathy will be assessed through National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE v5.0)

    6 months (before and after neoadjuvant therapy)

  • Tumor size

    Before and after neoadjuvant therapy, routine radiological imaging report will be evaluated.

    6 months (before and after neoadjuvant therapy)

  • Quality of life score-(European Cancer Research and Treatment Organization Quality of Life Scale - Cancer 30 (EORTC QLQ-C30)

    The quality of life of women with breast cancer is evaluated with the European Cancer Research and Treatment Organization Quality of Life Scale - Cancer 30 (EORTC QLQ-C30). It consists of 30 items to assess physical, role, emotional, cognitive and social functioning, global health status or qualitiy of life scales, fatigue, pain, nausea and vomiting, dyspnea, insomnia, appetite loss, constipation, diarrhea and financial difficulties.

    6 months (before and after neoadjuvant therapy)

  • Quality of life score-Case group (the European Cancer Research and Treatment Organization Breast Cancer-Specific Quality of Life Scale

    The EORTC QLQ-BR23 is a breast-specific module that comprises of 23 questions to assess body image, sexual functioning, sexual enjoyment, future perspective, systemic therapy side effects, breast symptoms, arm symptoms and upset by hair loss.

    6 months (before and after neoadjuvant therapy)

  • 5-year survival rate

    After neoadjuvant therapy survival rates will be evaluated.

    5 years after neoadjuvant therapy

Study Arms (2)

Group-1 (Ketogenic diet)

EXPERIMENTAL

Group-1 will be given an adequate and balanced healthy diet program during the standard neoadjuvant treatment (12 weeks) with an anthracycline. And simultaneously with standard neoadjuvant therapy containing taxane (12 weeks), KD will be planned for Group-1

Other: Adequate and balanced healthy diet program (CHO: 45-60%, protein:10-20%, fat:20-35%)Other: Ketogenic diet program (CHO: 6%, protein:19%, fat:75%)

Group-2 (Adequate and balanced healthy diet)

OTHER

Group-2 will be given an adequate and balanced healthy diet program during the standard neoadjuvant treatment (12 weeks) with anthracycline and taxane (12 weeks).

Other: Adequate and balanced healthy diet program (CHO: 45-60%, protein:10-20%, fat:20-35%)

Interventions

In calculating the estimated basal metabolic rate of individuals, Mifflin-St. The Jeor Equation will be used.BMR will be multiplied by the physical activity factor of the individual and 500\*700 kcal will be subtracted from the found value and the total daily energy requirement will be obtained.

Group-1 (Ketogenic diet)Group-2 (Adequate and balanced healthy diet)

A ketogenic diet will be applied to Group 1 for 12 weeks simultaneously with taxane treatment.

Group-1 (Ketogenic diet)

Eligibility Criteria

Age19 Years - 64 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsBreast cancer occurs almost entirely in females.
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Diagnosed with breast cancer for the first time,
  • Planned to receive neoadjuvant treatment,
  • Being overweight (BMI: 25-29.9 kg/m2) or obese (BMI: ≥30 kg/m2),
  • Karnofsky Performance Score ≥ 70

You may not qualify if:

  • Ketogenic diet history,
  • Diagnosed with moderate/severe neurological and/or cognitive impairment
  • Diagnosed with kidney, liver, and gall bladder disease/coronary artery disease
  • Diagnosed with type 1 diabetes,
  • Diagnosed with type 2 diabetes using oral antidiabetic or insulin,
  • Diagnosed with eating behavior disorder (anorexia nervosa, bulimia nervosa, binge eating disorder),
  • Using weight loss medication,
  • Karnofsky Performance Score \< 70,
  • Pregnant
  • Breastfeeding individuals

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (6)

  • National Cancer Institute. 2017.

    BACKGROUND
  • Postma TJ, Aaronson NK, Heimans JJ, Muller MJ, Hildebrand JG, Delattre JY, Hoang-Xuan K, Lanteri-Minet M, Grant R, Huddart R, Moynihan C, Maher J, Lucey R; EORTC Quality of Life Group. The development of an EORTC quality of life questionnaire to assess chemotherapy-induced peripheral neuropathy: the QLQ-CIPN20. Eur J Cancer. 2005 May;41(8):1135-9. doi: 10.1016/j.ejca.2005.02.012. Epub 2005 Apr 14.

    PMID: 15911236BACKGROUND
  • Aaronson NK, Ahmedzai S, Bergman B, Bullinger M, Cull A, Duez NJ, Filiberti A, Flechtner H, Fleishman SB, de Haes JC, et al. The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology. J Natl Cancer Inst. 1993 Mar 3;85(5):365-76. doi: 10.1093/jnci/85.5.365.

    PMID: 8433390BACKGROUND
  • Khodabakhshi A, Akbari ME, Mirzaei HR, Mehrad-Majd H, Kalamian M, Davoodi SH. Feasibility, Safety, and Beneficial Effects of MCT-Based Ketogenic Diet for Breast Cancer Treatment: A Randomized Controlled Trial Study. Nutr Cancer. 2020;72(4):627-634. doi: 10.1080/01635581.2019.1650942. Epub 2019 Sep 9.

    PMID: 31496287BACKGROUND
  • Khodabakhshi A, Akbari ME, Mirzaei HR, Seyfried TN, Kalamian M, Davoodi SH. Effects of Ketogenic metabolic therapy on patients with breast cancer: A randomized controlled clinical trial. Clin Nutr. 2021 Mar;40(3):751-758. doi: 10.1016/j.clnu.2020.06.028. Epub 2020 Jul 3.

    PMID: 32703721BACKGROUND
  • Khodabakhshi A, Seyfried TN, Kalamian M, Beheshti M, Davoodi SH. Does a ketogenic diet have beneficial effects on quality of life, physical activity or biomarkers in patients with breast cancer: a randomized controlled clinical trial. Nutr J. 2020 Aug 22;19(1):87. doi: 10.1186/s12937-020-00596-y.

    PMID: 32828130BACKGROUND

Related Links

MeSH Terms

Conditions

Polyneuropathies

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System Diseases

Study Officials

  • Şenay Burçin ALKAN, MSc

    Necmettin Erbakan University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mehmet ARTAÇ, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Proffessor Doctor

Study Record Dates

First Submitted

January 13, 2022

First Posted

February 10, 2022

Study Start

January 30, 2022

Primary Completion

January 30, 2024

Study Completion

January 30, 2025

Last Updated

February 10, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share